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Home My WebLink About20195203.tiffThornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 Volume 2 of 3 (('<< 'Thornton � ..:';TER PROJECT Submitted to: Weld County Department of Planning Services 1555 N. 17th Avenue Greeley, CO 80631 Dated: December 21, 2018 Prepared By: CH2M HILL 9191 South Jamaica Street us CH2MHILL Englewood, CO 80112 l�' City of Thornton Prepared For: City of Thornton 9500 Civic Center Drive Thornton, CO 80229 Thornton Water Project — Weld County Permit Application 1 Table of Contents Volume 1 of 3 Cover Letter Cover Table of Contents ii Acronyms and Abbreviations vii Introduction 1-1 Purpose and Need P-1 USR Procedural Guide Checklist Section 1 Pre -application Meeting Minutes 1-1 Section 2 Application Form 2-1 Section 3 Authorization Form 3-1 Section 4 USR Questionnaire 4-1 Section 5 USR Maps 5-1 Section 6 Certificate of Conveyances Form 6-1 Section 7 List of Property Owners 7-1 Section 8 Evidence of Adequate Water Supply 8-1 Section 9 Evidence of Adequate Sewage Disposal 9-1 Section 10 Notice of Inquiry 10-1 Section 11 Drainage Report 11-1 Section 12 Traffic Study 12-1 Section 13 Community Meeting 13-1 Section 14 Electronic Submission 14-1 Section 15 Application Fee 15-1 Section 16 Investigation Fee 16-1 WCC Section 23-2-510 Section A Applicant's Name and Telephone Number A-1 Section B Address of the Applicant B-1 Section C Summary Statement C-1 Section C Attachments Attachment C.2.c-1 Floodplain Information C.2.C-1-1 Attachment C.2.c-2 Air Quality Information C.2.C-2-1 Attachment C.2.c-3 Drainage and Erosion Control Information C.2.C-3-1 Attachment C.2.c-4 Geologic Hazards Information C.2.C-4-1 Attachment C.2.c-5 Groundwater Information C.2.C-5-1 Attachment C.2.c-6 Noise Information C.2.C-6-1 Attachment C.2.c-7 Traffic Narrative C.2.C-7-1 WCC Sections 23-2-480 and 23-2-490 Section D WCC Approval Standards and Application Requirements D-1 References R-1 Volume 2of3 Cover Table of Contents ii Acronyms and Abbreviations vii Appendixes Appendix A Alternatives Analysis Technical Report Thornton Water Project, Reach 2 Alternative Corridors Analysis Appendix B Natural and Cultural Resources Assessment Natural and Cultural Resources Assessment, Thornton Water Project, Larimer, Weld, and Adams Counties, Colorado Appendix C Public Outreach Information Appendix D Stakeholder Outreach Information Volume 3 of 3 USR XX-XXXX Permit Maps Volume 1 Figures Figure C.2.a Example Buried Appurtenances C-2 Figure C.2.b.1 TWP PA -1 Route C-8 Figure C.2.b.2 Preferred Route in Weld County Future and Current ROW C-9 Figure C.2.b.3 TWP PA -1 Proposed Location 1 in Weld County ROW C-14 Figure C.2.b.4 TWP PA -1 Proposed Location 2 in Weld County ROW C-15 Figure C.2.b.5 TWP PA -1 Proposed Location 3 in Weld County ROW C-16 Figure C.2.d.1 TWP Timeline C-23 Figure C.2.d.2 Construction Activities C-25 Figure C.2.d.3 Potential Staging Locations C-27 Figure C.2.d.4 Example Open -Cut Construction Section C-28 Figure C.2.i.1 Zoning within TWP PA -1 C-39 Figure C 2.i.2 Town and GMA Boundaries within TWP PA -1 Route C-41 Figure C.2.i.3 Soils C-58 Figure C.2.I Possible Haul Routes C-62 Figure C.2.c-1 Floodplains C.2.C-1-2 Figure C.2.c-3.1 Drainage and Erosion Control 11-2 Figure C.2.c-3.2 Soil Erodibility 11-11 Figure C.2.c-4 Geologic Hazards C.2.C-4-2 Figure C.2.c-5 South Platte River Basin and Associated Alluvial Aquifers C.2.C-5-2 Figure C.2.c-7.1 TWP PA -1 Route 12-2 Figure C.2.c-7.2 Possible TWP PA -1 Access Locations 12-9 Figure C.2.c-7.3 Possible Haul Routes 12-11 Figure C.2.c-7.4 Preferred Route in Weld County Future and Current ROW 12-13 Figure C.2.c-7.5 TWP PA -1 Proposed Location 1 in Weld County ROW 12-18 Figure C.2.c-7.6 TWP PA -1 Proposed Location 2 in Weld County ROW 12-19 Figure C.2.c-7.7 TWP PA -1 Proposed Location 3 in Weld County ROW 12-20 Figure C.2.c-7.8 Sample Road Closure Types 12-22 Figure 4.1 Example Buried Appurtenances 4-2 Figure 4.2 Zoning within TWP PA -1 4-4 Figure 4.3 Town and GMA Boundaries within TWP PA -1 Route 4-6 Figure 4.4 Possible Haul Routes 4-15 Figure 4.5 Possible TWP PA -1 Access Locations 4-18 Figure 4.6 Drainage and Erosion Control 4-20 Figure 4.7 Potential Staging Locations 4-22 Figure 7.1 Adjacent Property Owner Notification Area 7-12 Figure 7.2 Adjacent Property Owner Notification Area 7-13 Figure 7.3 Adjacent Property Owner Notification Area 7-14 Figure 7.4 Adjacent Property Owner Notification Area 7-15 Figure 7.5 Adjacent Property Owner Notification Area 7-16 Figure 7.6 Adjacent Property Owner Notification Area 7-17 Figure 7.7 Adjacent Property Owner Notification Area 7-18 Figure 7.8 Adjacent Property Owner Notification Area 7-19 Figure 7.9 Adjacent Property Owner Notification Area 7-20 Figure 7.10 Adjacent Property Owner Notification Area 7-21 Figure 7.11 Adjacent Property Owner Notification Area 7-22 Figure 7.12 Adjacent Property Owner Notification Area 7-23 Volume 1 Tables Table C.2.a TWP PA -1 Land Acquisition Status as of December 19, 2018 C-4 Table C.2.b Concept Evaluation Implementation Considerations C-19 Table C.2.c Impacted Existing Condition Reference to Mitigation Measures Location in Application C-22 Table C.2.d Probable Water Pipeline Construction Method at Defined Existing Features C-29 Table. C.2.h TWP PA -1 Irrigation Ditch Crossings C-37 Table C.2.I Possible Delivery and Commuting Routes C-61 Table C.2.c-3.1 Example Structural Control Measures 11-4 Table C.2.c-3.2 Example Stabilization Control Measures 11-6 Table C.2.c-3.3 Example Materials Handling Control Measures for Construction Sites 11-7 Table C.2.c-3.4 Example BMP Maintenance Guidelines 11-8 Table C.2.c-3.5 Example Groundwater BMPs 11-9 Table C.2.c-3.6 Example Other Areas or Procedures BMPs 11-10 Table C.2.c-7.1 Roadway Classifications and AADT 12-3 Table C.2.c-7.2 Anticipated Construction Vehicles 12-6 Table C.2.c-7.3 Possible Delivery and Commuting Routes 12-8 Table C.2.c-7.4 Structurally Deficient or Functionally Obsolete Bridges Near TWP PA -1 12-10 Table D.1 Impacted Existing Condition Reference to Mitigation Measures Location in Application D-5 Table D.2 Impacted Existing Condition Reference to Mitigation Measures Location in Application D-10 Table D.3 Concept Evaluation Implementation Considerations D-13 Table D.4 WCC Standards and Application Requirements Cross -Reference Guide D-20 Table 4.1 Possible Construction Delivery and Commuting Routes 4-14 Table 4.2 Possible Post -construction Delivery and Commuting Routes 4-16 Table 7.1 List of Surrounding Property Owners within 150 feet of the Centerline of the Preferred Route 7-3 Volume 1 Exhibits Exhibit C.2.b.la Parcel Number 146933200024 Property Owner Letter to Weld County C-10 Exhibit C.2.b.1b Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 1 C-11 Exhibit C.2.b.ic Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 2 C-11 Exhibit C.2.b.1d Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 3 C-12 Exhibit C.2.b.le Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 4 C-12 Exhibit C.2.b.1f Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 5 C-13 Exhibit C.2.b.2 Location 3 Property Owner Letter to Weld County C-17 Exhibit C.2.c-7.1a Parcel Number 146933200024 Property Owner Letter to Weld County 12-14 Exhibit C.2.c-7.1b Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 1 12-15 Exhibit C.2.c-7.1c Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 2 12-15 Exhibit C.2.c-7.1d Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 3 12-16 Exhibit C.2.c-7.1e Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 4 12-16 Exhibit C.2.c-7.1f Parcel Number 146933200024 Property Owner Letter to Weld County Attachment 5 12-17 Exhibit C.2.d-7.2 Location 3 Property Owner Letter to Weld County 12-21 Exhibit 10.1 Plattevile Signed Notice of Inquiry 10-2 Exhibit 10.2a Notice of Inquiry Email Request to Dacono 10-3 Exhibit 10.2b Notice of Inquiry Email Request Attachment to Dacono 10-4 Exhibit 10.3a Notice of Inquiry Email Request to Fort Lupton 10-5 Exhibit 10.3b Notice of Inquiry Email Request Attachment to Fort Lupton 10-6 Exhibit 10.4a Notice of Inquiry Email Request to Frederick 10-7 Exhibit 10.4b Notice of Inquiry Email Request Attachment to Frederick 10-8 Exhibit 10.5a Notice of Inquiry Email Request to Firestone 10-9 Exhibit 10.5b Notice of Inquiry Email Request Attachment to Firestone 10-10 Exhibit 10.6a Notice of Inquiry Email Request to Platteville 10-11 Exhibit 10.6b Notice of Inquiry Email Request Attachment to Platteville 10-12 Exhibit 10.7a Notice of Inquiry Email Request to Mead 10-13 Exhibit 10.7b Notice of Inquiry Email Request Attachment to Mead 10-14 Exhibit 10.8 Notice of Inquiry Email Request Attachment for All Requests 10-15 Thornton Water Project — Weld County Permit Application 1 Acronyms and Abbreviations AADT Annual Average Daily Traffic ADA Americans with Disabilities Act Application TWP PA -1 USR Permit Application BGEPA Bald and Golden Eagle Protection Act BMP Best Management Practice CBP Colorado Butterfly Plant CCR Code of Colorado Regulations CDOA Colorado Department of Agriculture CDOT Colorado Department of Transportation CDOW Colorado Division of Wildlife CDPHE Colorado Department of Public Health and Environment CDPS Colorado Discharge Permit System CFR Code of Federal Regulations CNDIS Colorado Natural Diversity Information System/Source CNHP Colorado Natural Heritage Program Comprehensive Plan Weld County Code, Chapter 22, Comprehensive Plan Corps U.S. Army Corps of Engineers CPW Colorado Parks and Wildlife CR County Road DRCOG Denver Regional Council of Governments DWR Colorado Division of Water Resources ELCO East Larimer County Water District ERO Resources Corporation ESA Endangered Species Act FEMA Federal Emergency Management Agency FR Federal Register FRICO Farmers Reservoir and Irrigation Company GIS Geographic Information System GMA Growth Management Area HUC Hydrologic Unit Code I-25 Interstate 25 IPM Integrated Pest Management Jurisdictional Waters Waters of the United States MBTA Migratory Bird Treaty Act mgd million gallons per day MS4 Municipal Separate Storm Sewer System TWP USR PA -1 ACRONYMS AND ABBREVIATIONS NCAR N HD Northern Water N PDES N RCS NWI OAHP OHWM PA -1 PDF Poudre River Preble's National Center for Atmospheric Research National Hydrography Dataset Northern Colorado Water Conservancy District National Pollutant Discharge Elimination System Natural Resources Conservation Service National Wetland Inventory Office of Archeology and Historic Preservation Ordinary High Water Mark Weld County Permit Application Segment 1 Adobe Acrobat © Portable Document Format Cache la Poudre River Preble's Meadow Jumping Mouse USR Procedural Guide Checklist Project PSCo ROW RPW RUA SDS Service SPWRAP SWMP Thornton TNW TWP ULTO UPRR USACE USB USDCM USFS USFWS USGS USR WCC WOTUS WSSC Weld County Use by Special Review (USR) Procedural Guide Checklist, Application Requirements Thornton Water Project Public Service Company of Colorado Right -of -Way Relatively Permanent Waters Regional Urbanization Area Safety Data Sheet U.S. Fish and Wildlife Service South Platte Water Related Activities Program Stormwater Management Plan City of Thornton Traditional Navigable Waters Thornton Water Project Ute Ladies' -Tresses Orchid Union Pacific Railroad U.S. Army Corps of Engineers Universal Serial Bus Urban Storm Drainage Criteria Manual U.S. Forest Service U.S. Fish and Wildlife Service U.S. Geological Survey Use by Special Review Weld County Code Waters of the United States Water Supply and Storage Company TWP USR PA 1 ACRONYMS AND ABBREVIATIONS Technical Report — Thornton Water Project Reach 2 Alternative Corridors Analysis �`r'Thornton iii PFl Prepared for City of Thornton September 2016 Prepared by vid CH2MHILL e 9189 S. Jamaica St. Englewood, CO 80112 Contents Section Page Contents ii Acronyms and Abbreviations iv Executive Summary ES -1 Section 1— Introduction 1-1 Section 2 — Guidelines for Development of Alternative Corridors 2-1 Agency Input 2-1 Exclusion Areas 2-1 Utilization of Thornton -Owned Property 2-1 Abutting Rights of Way, Easements, and Property Lines 2-1 Section 3 — Development and Description of Alternative Corridors 3-1 Evaluation Area 3-1 Desktop Survey 3-1 Corridor Segment Development 3-1 Alternative Corridor Development 3-3 Agency Outreach 3-3 Alternative Corridor Descriptions 3-4 Alternative A 3-4 Alternative B 3-4 Alternative C 3-4 Alternative D 3-4 Section 4 — Description of Non -economic Criteria 4-1 Local Government Preference 4-2 Geologic Hazards 4-2 Community Impact 4-4 Wetland/Riparian Crossings 4-5 Floodplain Crossings 4-6 Parcel Owners 4-7 Right -of -Way 4-7 Section 5 — Alternative Corridors Analysis 5-1 Non -Economic Scoring Analysis 5-1 Section 6 — Conclusion 6-1 Alternative A 6-1 Alternative B 6-1 Alternative C 6-1 Alternative D 6-1 TWP USR PA -1 APPENDIX A II CONTENTS Tables 4-1 Non -economic Criteria Summary 4-1 4-2 Local Government Preference Summary 4-2 4-3 Geologic Hazard Summary 4-4 4-4 Community Impact Summary 4-5 4-5 Wetland/Riparian Crossings Summary 4-6 4-6 Floodplain Crossings Summary 4-6 4-7 Parcel Owners Summary 4-7 4-8 Right -of -Way Summary 4-7 5-1 Summary of Non -Economic Raw Data 5-1 5-2 Non -Economic Relative Normalized Scoring 5-1 5-3 Weighted Non -economic Criteria 5-3 6-1 Weighted Non -economic Criteria 6-1 Figures 3-1 TWP Reach 2 Study Area 3-2 3-2 TWP Reach 2 Alternative Corridors 3-5 3-3 TWP Reach 2 Alternative A 3-6 3-4 TWP Reach 2 Alternative B 3-7 3-5 TWP Reach 2 Alternative C 3-8 3-6 TWP Reach 2 Alternative D 3-9 4-1 TWP Reach 2 Mine Subsidence Areas 4-3 5-1 Non -economic Criteria Weighting Summary 5-2 TWP USR PA -1 APPENDIX A III Acronyms and Abbreviations CDOT Colorado Department of Transportation DFIRM Digital Flood Insurance Rate Map FEMA Federal Emergency Management Agency FIRM Flood Insurance Rate Map FIS Flood Insurance Studies GIS Geographic Information System 1-25 Interstate 25 LCR Larimer County Road NFHL National Flood Hazard Layer NFIP National Flood Insurance Program NWI National Wetland Inventory ROW Right-of-way RTD Regional Transportation District Thornton City of Thornton TWP Thornton Water Project TWTP Thornton Water Treatment Plant USA United States of America USFWS United States Fish and Wildlife Service WCR Weld County Road WBWTP Wes Brown Water Treatment Plant WSSC Water Supply and Storage Company WSSC Reservoir No. 4 WSSC Reservoir Number 4 TWP USR PA -1 APPENDIX A Iv Executive Summary This technical report summarizes the analysis used to aid in the selection of a preferred corridor for the Thornton Water Project (TWP) water pipeline for the city of Thornton (Thornton). The analysis was performed on four alternative corridors within a 3- to 51/2 -mile wide path from the Water Supply and Storage Company's (WSSC) Reservoir No. 4 (WSSC Reservoir No. 4) in unincorporated Larimer County to Thornton, terminating at either the Thornton Water Treatment Plant or the Wes Brown Water Treatment Plant, or both. This technical report focuses on Reach 2, the portion of the water pipeline that would extend from WSSC Reservoir No. 4 to 168` Avenue, the County line between Weld and Adams County. The alternative corridors were developed using guidelines including the following: • Input from potentially affected local governments • Minimizing impacts to right of way (ROW) • Minimizing impacts to water bodies and wetlands • Bypassing geological hazardous areas • Minimizing impacts to environmentally sensitive areas such as open space or conservation areas • Minimize impacts to congested areas, typically in developed, densely populated areas • Utilizing Thornton -owned property • Following ROW/easements/property lines After determining locations that met these guidelines, corridor segments were identified and then used to form a complete alternative corridor from the WSSC Reservoir No. 4 outlet structure to the Weld County line at 168th Avenue. A corridor segment is the smallest unique length of an alternative corridor. This exercise identified three alternative corridors: Alternative A, Alternative B, and Alternative C. Typically, alternative corridors are approximately %-mile wide. In 2015, the TWP Team conducted local government outreach meetings with municipalities that TWP construction might encounter in the evaluation area. Based on input received from this local government outreach, an Alternative D was created. Alternative D combines portions of Alternatives B and C and includes the north portion of Alternative B and the south portion of Alternative C. The four alternative corridors were then analyzed using non -economic criteria to determine the preferred TWP corridor. The non -economic criteria and method of measurement used in the evaluation of alternatives included the following: • Local Government Preference - Rating scale from 1 to 8 based on compliance with local government preferences • Geologic Hazards — Estimated length within areas identified as having mine subsidence • Community Impact- Number of local government boundaries crossed • Wetland/Riparian Crossing — Estimated length of wetland/riparian areas crossed • Floodplain Crossings — Estimated length of floodplain areas crossed • Parcel Owners - Number of unique parcel owners crossed • ROW - Estimated possible length of water pipeline in ROW TWP USR PA -1 APPENDIX A ti EXECUTIVE SUMMARY The non -economic analysis was conducted using normalized scores from 1 to 5, with lower scores being more favorable. After weighting the normalized scores Alternative D, which has the most favorable score due to a low value in most criteria except parcel owners, was determined to be the preferred TWP corridor. Alternative B was the least favorable due to poor scoring in most categories. TWP USR PA -1 APPENDIX A ES -2 Section 1 — Introduction The purpose of this technical report is to document and present the means and methods for evaluating alternative corridors using non -economic criteria for the Thornton Water Project (TWP) Reach 2 and present the results of the evaluation. The TWP will include a source water pump station in Larimer County and a booster pump station in Weld County, a water storage tank in either Weld or Larimer County, and a buried domestic water pipeline that will convey domestic water from the Water Supply and Storage Company Reservoir Number 4 (WSSC Reservoir No. 4) north of the city of Fort Collins in Larimer County to the city of Thornton (Thornton), terminating at either the Thornton Water Treatment Plant (TWTP) site or the Wes Brown Water Treatment Plant (WBWTP) site, or both. The water pipeline will be constructed in multiple counties and municipalities. The water pipeline has been divided into the following reaches: • Reach 1— 168th Avenue to TWTP (at Thornton Parkway and Downing Street) and WBWTP (at 86' Avenue and Colorado Boulevard) • Reach 2 — WSSC Reservoir No. 4 outlet structure to 168th Avenue The analysis of Reach 1 will be conducted after the completion of Thornton's Water and Wastewater 2018 Master Plan and is not a part of this technical report. This technical report is structured as follows: Section 1 — Introduction Section 2 — Guidelines for Development of Alternative Corridors Section 3 — Development and Description of Alternative Corridors Section 4 — Description of Non -economic Criteria Section 5 — Alternative Corridors Analysis Section 6 — Conclusion TWP USR PA -1 APPENDIX A 1 1 Section 2 — Guidelines for Development of Alternative Corridors This section describes the guidelines used to develop alternative corridors for Reach 2 of the TWP. Identifying alternative corridors started with outlining an evaluation area, followed by conducting multiple rounds of local government outreach, and then identifying feasible corridor segments based on the guidelines listed below. Agency Input Multiple counties and municipalities will be crossed by the TWP. In an effort to determine possible locations for a water pipeline, obtain input from local governments and agencies. Exclusion Areas The following areas have been identified as not being conducive for water pipeline locations: • Road right of way (ROW). Staff in Larimer and Weld Counties indicated a preference that the water pipeline be located outside of the existing and future ROW. • Bodies of water. A significant portion of the evaluation area is located within existing agricultural areas that rely on the water in the rivers, streams, ditches, and water storage reservoirs as part of daily operations. Minimizing impacts to the water conveyance and storage infrastructure reduces the disruption to agricultural businesses. • Wetlands/riparian areas. Threatened and endangered species and other wildlife are commonly found in wetland and riparian areas; these species are sensitive to disturbance within their habitats. • Geologic hazard areas. Geologic hazards consist of areas with known mine subsidence. These areas are not conducive to water pipeline locations. • Environmentally sensitive areas. Areas identified as federal, state, or locally owned properties and conservation easements are typically designated as open lands or environmentally sensitive areas. These areas are considered to have environmental significance. • Congested areas. Areas identified as being congested with existing buildings and other infrastructure including areas where a significant number of utilities are assumed to be located, usually in developed, densely populated areas. Utilization of Thornton -Owned Property Thornton owns multiple farm properties in Larimer and Weld Counties and, whenever feasible, areas were identified that would maximize the use of Thornton -owned property. This approach minimizes the impacts to the ROW and property owners in the surrounding areas. Abutting Rights of Way, Easements, and Property Lines A water pipeline location parallel to ROW, utility easements, property lines, and section and quarter section lines is considered favorable and would limit the disturbance to property owners and the general public. TWP USR PA -1 APPENDIX A Section 3 — Development and Description of Alternative Corridors This section describes the methodology used to develop alternative corridors for Reach 2 of the TWP. First, an evaluation area was defined. Next, corridor segments were established within the evaluation area using the guidelines described in Section 2. Finally, corridor segments were linked to develop a complete alternative corridor. A description of each alternative corridor is included in this section. Evaluation Area An initial evaluation area was established to set limitations for the development of alternative corridors. The objective for establishing an alternative corridor was to maintain as straight of a path as feasible from the WSSC Reservoir No. 4 outlet structure to the east side of Interstate 25 (I-25) and then south to 168th Avenue. The limits of the evaluation area are shown on Figure 3-1 and are described as follows: • The east/west portion of the evaluation area is approximately 3 miles wide, centered near WSSC Reservoir No. 4. The evaluation area extends from Larimer County Road (LCR) 19 east to Weld County Road (WCR) 17 %2. The southern extent of the evaluation area is bounded by Douglas Road and the northern extent by LCR 60/WCR 96. • The north/south portion of the evaluation area is approximately 4 to 51/2 miles wide. It extends from LCR 60/WCR 96 south to 168`h Avenue. The evaluation area is bounded by 1-25 on the west and WCR 17 %2 on the east. Desktop Survey A desktop survey was conducted to identify likely areas where a water pipeline could be constructed. This desktop survey used readily and publicly available geographic information system (GIS) information and aerial imagery as the background for determining viable locations for a water pipeline. This high-level approach quickly identified areas with significant obstructions or other issues, and alternatives around those areas. The desktop survey employed the guidelines presented in Section 2 in the development of alternative corridors; the development process is described in further detail below. Corridor Segment Development Potential corridor segments were developed using available data and mapping to create the shortest route possible from the WSSC Reservoir No. 4 outlet structure to 168th Avenue. Corridor segments are the smallest unique length of an alternative alignment corridor. Portions of the evaluation area were excluded from consideration as viable locations for the TWP water pipeline, as described in Section 2. Exclusion areas were identified based on the desktop survey. Some exclusion areas, such as bodies of water and wetland/riparian areas, cannot be bypassed or, if feasible, a bypass would include a significant length of additional pipe. To limit the immediate and long-term impacts of the crossings, these areas were identified as trenchless construction method crossings. Corridor segments were developed at locations where trenchless construction method crossings appeared feasible based on the desktop survey. Crossing of these areas with trenchless construction methods reduces the potential for the destabilization of banks TWP USR PA -1 APPENDIX A Thornton Water Project I.Y "Etca.4,0 4n D'° SR 2e WSSC Reservoir No. 4 Lurinter County I STUART 97 oR+r<E RD FORT COLONS u a Tout. RD S S7TN SI 4 3, MM ST 227.057 a 14TM SW St CR +a 4 70 ,9T I INF �I CR4 'A'••a.. • • • • LYONS - iiI 4D Y • ..`— . ... + 4 w" 't C3 -. WW I r. +,tRLONOMONT avE ; • ru RA I a R U I[ I d e r (' U II n t 1' ~^ NELSONRO .- - I sett: r • •w ARE RD b ST fe I LLINGTONI — fI LEA•MrM0 b ' e YEW W �.NWOW RO O `vi r. w •-'^•. w `i 152 'EE hE DR 'V) • e .. J 1• ` 4L s I 1 -- �1 ,EEE\ 'I I • {W{ l LOVE s? S 3 D :oo•wU7 AD RO 74 I r 7Ar RD \IRS's C71 6i aaeE::e RC : ERIE Y$ BOULDER I 1 LAFAYETTE LOUISVILLE 42 tiv 1 I 1ce,�M DSOR I 1 ROADS SO: CR S7 I • Il'et.' I CRS; JO NSTOWN cu b a1R AVE SEVERANCE BERTHOUD-.,f s u MEA ape tea ERE TT h• : BROOMFIEL D ,170+ :JA . >v o=/a��f. _. J 93 'Ws AVE 71.— r• .J l 4- I • _ 1 • CAW • CR $a 1 3 • I FREDERICK 470 9 z flan- AVE 1 E = THORNTON DACONO 4, Sias I 1 1 4 .7 a NUNN f PIERCE AULT a Held Counts' EATON O ST —W y' ..... lTM e7 F S GREELEY ,r rimn o f 7S41 1 ri_ 77T., s1 2 EVANS MILUKEN - • PLATTEVILLE :4:, GILCREST 85� CR32 LA SALLE CR 4a a v Weld Count; FORT LUPTON CR 77 w C>, t U 07 14 0 S7 s u Iran CR 70 HUDSC S LOCHBUIE / r .. .,sas..AVE-------a.wES4EaE, - • BRIGHTON 8R1DOES7 Q e aaROWET ' SINU ..r a o.4dams Count: A / CITY OF THORNTON `( Thornton COLORADO vA va atr; w 12450 WASHINGTON ST THORNTON, CO 80241-2405 N E S 1 inch = 4 riles 0 t 2 4 CiStudy Area Railroad — - County Boundary Q Lake/Reservoir RiverlStream/Cnai0Rcn Boundaries Crossed by Study Area Corporate Boundary GMA Boundary Fort Collins Fort Coin's Johnstown Johnstown Loveland Loveland T,nnath Tunnel Wellington Wellington Windsor Windsor Figure 3-1 TWP Reach 2 Study Area 3/27/2017 Maas w 'Alan ORN. 0 404 'ERR PROACnYAS* ORDE4 St' °CRAM'' -MCC 9MARr; EaE40r,EEN465Uaa0a U47 ANA YSS cop co - 0 AREA ,1X57 V7 MXD .G;Rh Sn700 7' riCOOT (SR -4P "NV .tee +wc ::a --w .tt* •-.r 32 SECTION 3 - DEVELOPMENT AND DESCRIPTION OF ALTERNATIVE CORRIDORS and increased incision of the channel bottom that could cause erosion problems at the crossing and downstream of the crossing. Where feasible, corridor segments were located to utilize Thornton -owned property and to abut existing ROW, easements, and property lines. Alternative Corridor Development A review of the corridor segments was completed to determine which corridor segments could be combined to form a complete alternative corridor from the WSSC Reservoir No. 4 outlet structure to 168th Avenue. This review resulted in three distinct alternative corridors: Alternative A, Alternative B, and Alternative C. Each corridor is described in more detail in the sections that follow. TWP staff observed the alternative corridors in the field where public access was available to verify the viability of the alternative corridors. Because water pipeline length is one of the greatest costs, the development of the alternative corridors attempted to limit the east/west movement of each alternative corridor, unless required to route around exclusion areas. Agency Outreach The distance of Reach 2 extending from WSSC Reservoir No. 4 outlet structure to 168th Avenue is approximately 60 miles through Larimer and Weld Counties. In an effort to determine the alternative corridor least impactful to local communities in Northern Colorado, Thornton, in 2015, conducted a series of outreach meetings with local governments and agencies that could be impacted by the TWP. During the initial outreach meeting with each local government and agency, the evaluation area was presented to determine preferences and/or determine fatal flaws for possible location of the TWP water pipeline within the local government or agency's jurisdictional and/or growth management area boundaries. Outreach meetings were conducted with the following local governments: • Berthoud • Dacono • Firestone • Fort Collins • Frederick • Greeley • Johnstown • Larimer County • Loveland • Mead • Milliken • Timnath • Weld County • Wellington • Windsor TWP USR PA -1 APPENDIX A 3 3 SECTION 3 - DEVELOPMENT AND DESCRIPTION OF ALTERNATIVE CORRIDORS Secondary outreach meetings were conducted with local governments and agencies that had incorporated areas or growth management areas overlapping alternative corridor locations to present the three preliminary alternative corridors: Alternatives A, B, and C. During this second round of outreach, additional feedback was collected from the local governments and agencies and, as a result, a fourth alternative corridor, Alternative D, was developed. Alternative Corridor Descriptions Following the guidelines discussed in Section 2, the desktop survey produced three viable alternative corridors, Alternatives A, B, and C. A fourth alternative corridor, Alternative D, was developed based on feedback received from local governments and agencies. Alternative corridors are shown in Figure 3-2. Alternative A The development of Alternative A focused on the south and westerly portion of the east/west and north/south evaluation area, respectively. Alternative A leaves the WSSC Reservoir No. 4 outlet structure and remains south of WSSC Reservoir No. 4, Annex Reservoir No. 8, and Elder Reservoir heading east and generally follows parcel lines and existing roads where feasible (Evans Drive, Bold Venture Way, Grey Rock Drive) to the east side of 1-25. Alternative A continues south generally following LCR 3 and LCR 5. South of Highway 52, Alternative A continues south following ROW owned partially by the Regional Transportation District (RTD) and various other owners, including the city of Dacono to 168th Avenue. Alternative A then heads west, terminating at York Street. Further coordination with RTD and the other ROW owners would be required to determine construction feasibility in this location. Figure 3-3 shows the route for Alternative A. Alternative B The development of Alternative B focused on the middle portion of the evaluation area. Alternative B follows the Alternative A route from the WSSC Reservoir No. 4 outlet structure east to LCR 9e where it turns north to LCR 56 and follows LCR 56 east to LCR 1/WCR 13. At WCR 13 it turns south to follow WCR 13 to 168' Avenue at the Weld/Adams County line. Figure 3-4 shows the route for Alternative B. Alternative C The development of Alternative C focused on the north and easterly portion of the east/west and north/south evaluation area, respectively. Alternative C leaves the WSSC Reservoir No. 4 outlet structure in a westerly direction and transitions north through the Braidwood subdivision on the west side of WSSC Reservoir No. 4. Just north of WSSC Reservoir No. 4, the alternative corridor turns east, around Dixon Reservoir, and then continues east generally following LCR 56 to LCR 1/WCR 13 where it turns south. The northern two-thirds of the north/south section traverses back and forth between WCR 13 and WCR 15, along those roads where feasible, following the guidelines outlined in Section 2. The southern third section of the alternative corridor generally follows half -section lines and WCR 17 south to 168" Avenue. Figure 3-5 shows the route for Alternative C. Alternative D Alternative D generally coincides with the path of Alternative B from the WSSC Reservoir No. 4 outlet structure and the south side of Johnstown with a deviation along LCR 56 to take advantage of property already owned by Thornton. This deviation has Alternative D crossing 1 -251/2 -mile south of LCR 56. South of Johnstown, Alternative D transitions %2 -mile east to Alternative C and follows Alternative C to 168' Avenue. Figure 3-6 shows the route for Alternative D. TWP USR PA -1 APPENDIX A Thornton Water Project r4L:'arimer lull l d cyr 'C U ll n _{ WSSC Reservoir No. 4 "-•. n l l' CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 3/15/2017 w muses ` ..C4'ro. 'CRT -E . '44.ECnrtigt_OR'tiEst_ 96 •-PERM NTH St S 1 inch a 3.65 miles o is a Oldies DACONO Mernetve Corndors Rrvoad Thornton Farm County Boundary Lake/Reservon R:ver/StreamCCan W pith 'WINDSOR FIRESTONE Boundaries Crossed by Study Area Corporate Boundary GMA Boundary Fort Collins Fort Collins Johnstown Johnstown Loveland Loveland Timneth Timer Wellington Wes.ngton WNndsar WWAndsor ^RR OC RS_I X17 Wta 3 AULT LA SALLE Figure 3-2 TWP Reach 2 Alternative Corridors So."o..©C' C 4 .--t .•,.,.<,:.-.. C: . VC 3-5 Thornton Water Project r 7 g5Alf BOUL9ER C� WATER ►ROJEC Thornton WSSC Reservoir No. 4 LOOKO.T 40 LOUISVILLE CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 3/15/2017 0rrixA_S 40 S 1 inch = 3 65 miles 0 :5 3 Man MNATH DACONO S Alternative A Mernatrve Cornoors Railroad F.71 Thornton Farm -- County Boundary LakelReservo.r RrverlStream/C ana1D.tcn JOHNSTOWN FIRESTONE Boundaries Craned Corporate Boundary Fort Collins Johnstown Loveland T,mnath Wellington Windsor 0 - We.l:d. C 1 2 Weld County C • tilt r� T LUPTON CiGE SAIBRIGHTON/ ° sr by Study Area GMA Boundary Fort Collins Johnstown Loveland Ti rmedh Wellington Wndsor 5 I 0 S '111- t Figure 3-3 TWP Reach 2 Alternative A !0,Ow COOT fM' r.•r w Ate n .v ured)61 •«C4•.•'Jx trV•-F4K>40f_.^,'r•/9( 046£4_St ' DEQM"..Gvi Sa /Jr•_f 4EN.CNE74.4_S.034•+.A' ANA. VS4=C4 g€PG •..'A A SW 6%. :CqR OCRS •• x. rvxD:O_ A • Y' St:•'e]+'.s AY 3-8 Thornton Water Project C� WATER fOf�flOf1 WSSC Reservoir No. 4 CR v SCR 7 7 0 I LOUISVILLE CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241 2405 v 9 14:94140E 90 5 1 inch 2 3 65 miles 0 5 3 FREDERICK Attenaeve B MIND Alternative Corridors Railroad Thornton Farm County Boundary LakaiReservor Rner/St'eanvC ans/Diton CT! C JOHNSTOWN FIRESTONE Boundaries Crossed by !Study Area Corporate Boundary MA Boundary Fort Collins Fort Collins Johnstown Johnstown Loveland LOveUnd Tinrads Turret Wellington Wei`:ngton Windsor Windsor Id County TLUPTON Figure 3-4 TWP Reach 2 Alternative B 3/15/2017 0 "3/'s w lean 'a.' O. v0tl•-.{is MP54'. A£r',rlF.>T'L_Srs •_3/E RW'VOY37JWAOt.' :GafE?.G. S,:afD54.1�t4G:v T'K'i Ann.'+A'9 A. Cwt%' Lb1i1Prtg_ ISO rip :d.uo. r ve•• c:a.:•v S9.'cer :SR' .••'r rat d to co--fr y7wR `-3 3.7 Thornton Water Project 1.urinter .i' •BOULDER r-. i Thornton WATER Pc WSSC Reservoir No. 4 C.\ OnSW St 297.. S7 LOVELAND J Sc AVAMOE RD r4 . Z LAFAYETTE RD BROOOMMR LO LOUISVILLE t' tee DACONO CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 3/15O017 S 1 inch = 3 65 miles a •5 3 MIW i' ARernaeve C ARernaeve Corndors Railroad [7,71 Thornton Farm County Boundary Lake/lb ese•var R vex/Stream2Canaup,tch I I NDS0R JOHNSTOWN -1 . FIRESTONE Boundaries Crossed Corporate Boundary Fort Collins Johnstown Loveland Timnath Wellington Windsor —We i d WPTON rL--j Li,,°CE St - GHTONj i itSV by Study Area GMA Boundary Fort Cole's Johnstown .ovelano t. math WeNngton Windsor o utn y EATON . oWr Figure 3-5 TWP Reach 2 Alternative C r•D Sc sr. i or UINe!_'HORM'W .40Q —ESN. PROJECCr Ayt_ ORDER_3,d• PERM'- Nat"MAOr .. EaoRr,A'C :w Ea' cowl00Rs•,a,twAp ;Out%]^57-•r t_2 DeW 3.8 Thornton Water Project "4La ,infer BOULDER,'' xy - ((Thornton WATfA oar WSSC Reservoir No. 4 LOUISVILLE i _ CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 S 1 inch = 3 65 miles 0 s 3 ales WELLINGTON MEAD \ 0 cDACONO INS Altemanve 0 ARematrve Cando's Railroad LT. 1 Thornton Fann —• County Boundary Q Lake/Reservoir River l Sy a rnCC an r/D rtc h NDSOR J JOHNOWN,- 4"LLIKEN FIRESTONE Boundaries Crossed Corporate Boundary Fort Collins Johnstown Loveland Ti nv ath Wellington Windsor kJ °PIERCE GLCREST LUPTON BRIGHTON) O°E $7 s by Study Area GMA Boundary Fort Coins Johnstown Loveland Tnma7+ Wellington W ndsor Co U"-N't P J e%Uo*E Figure 3-6 TWP Reach 2 Alternative D VE C.RMbTr., EIFY.'V_fIthc. S:IDaoa OiQrJoi5_'+%,,VC AIAI 3rWd'7IM'7AM Savors COO' =Mk V,0 3-9 Section 4 — Description of Non -economic Criteria This section describes the non -economic criteria used to compare the alternative corridors. The non- economic criteria were established to aid in the selection of a preferred corridor utilizing qualitative criteria to compare alternative corridors. The criteria were developed specific to the TWP and are intended to address subjective issues affecting corridor selection. Non -economic criteria are those factors that are important considerations in an alternative analysis, but are not associated with a specific cost. Seven distinct criteria were defined for evaluation as presented in Table 4-1. Raw data was determined based on the method of measurement presented in Table 4-1. Further detail for each criterion is given in the sections following the table. TABLE 4-1 Non -economic Criteria Summary Criterion Method of Measurement Data Source Local Government Preference Geologic Hazards Community Impact Wetland/Riparian Crossings Floodplain Crossings Parcel Owners ROW Rating scale from 1 to 8 based on compliance with local government preferences. Estimated length of areas crossed identified as having mine subsidence. Count of local governments crossed. Estimated length of areas crossed identified as wetland and/or riparian areas. Wetlands include categories found in the source file, and riparian areas include herbaceous and shrub flora. Estimated length of areas crossed identified as Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map (FIRM) 100 -year floodplain. Count of unique property owners crossed. Estimated possible length within the current ROW. Assumptions were made on number of ROW crossings. Outreach meeting discussions. RJH Consultants Inc. mine subsidence GIS information. Colorado Department of Transportation (CDOT) cities GIS information. Wetland data are from United States Fish and Wildlife Service (USFWS) National Wetland Inventory (NWI) GIS information. Riparian data are from the Colorado Natural Heritage Program GIS information. FEMA 100 -Year Flood Zones in the USA from ArcGIS services online. GIS parcel information from Adams, Larimer, and Weld Counties. Manual identification in GIS based on a combination of GIS parcel lines and existing and proposed ROW widths from local governments' transportation master plans. TWP USR PA -1 APPENDIX A 4-1 SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA Local Government Preference Local government preference differs from the other non -economic criteria in that each alternative is measured against the other alternatives, where the other criteria measure each alternative against a criterion. A significant factor in selecting the preferred corridor is how well an alternative corridor meets preferences indicated by staff in Larimer and Weld Counties and local governments during the outreach meetings. This criterion is measured on a rating scale from 1 to 8 with a point given to the alternative corridor that does not meet the county or local government's preference. A more desirable alternative corridor is one that has the lowest rating score; the least desirable alternative corridor is one that has the highest rating score. Table 4-2 presents the preferences of the counties and local governments provided during the outreach meetings. TABLE 4-2 Local Government Preference Summary Alternative Corridor Jurisdiction A B C D Larimer Weld Windsor Timnath Johnstown Firestone Dacono Frederick Mead Berthoud 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Total Points 8 5 2 1 Geologic Hazards Based on available GIS data, geologic hazards consist of the appreciable and severe mine subsidence areas as identified in the Geologic Hazards shapefile received from RJH Consultants Inc. in the third quarter of 2015. Mine subsidence areas crossed by the four alternative corridors are found near the tri-towns area (Firestone, Frederick, and Dacono) in Weld County as shown on Figure 4-1. Locating a water pipeline in areas with mine subsidence poses significant technical challenges during installation and increases the risk of pipe failure from collapsing soils within the trench section. Table 4-3 presents the estimated pipe lengths within areas of mine subsidence. A more desirable alternative corridor is one that has a shorter estimated length within a geologic hazard. TWP USR PA -1 APPENDIX A Thornton Water Project - .._..-. 1u 60114 AVE rThornton FREDERICK DACONO ERIE BROOMFIELD h z I CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 3/27/2017 NORTHGLENN THORNTON ETA C kternatve Con oors Railroad Thornton Fern County Boundary Lake/Reservorr RiverlStrearniCanarlDitch Mine Subsidence S Hazard Level 1 inch = 1 miles ® Severe dOran Q Appreciable Boundaries Crossed Corporate Boundary Fort Collins Johnstown Loveland Tinnath Wellington VNndsor by Study Area GMA Boundary Fort Collins Jonnstowr'• L oveiana rm r' VVe:ington Windsor Figure 4-1 TWP Reach 2 Mine Subsidence Areas C, u repay.'••C4`.-N. -t 24{1.- X{1.- "'ASK ]VJr9 stl_3r9N^ SA%WCE A4rAs 43 SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA TABLE 4-3 Geologic Hazard Summary Alternative Corridor Estimated Geologic Hazard Length Crossed (miles) Larimer County Weld County Alternative A Alternative B Alternative C Alternative D 0.00 0.00 0.00 0.00 3.36 4.72 0.00 0.00 Community Impact The alternative corridors cross Larimer and Weld counties. Limiting the number of local government boundaries that the water pipeline crosses minimizes impacts to local communities and the traveling public because areas within local government boundaries tend to be more congested. The list of local governments that each alternative corridor crosses is presented in Table 4-4. A more desirable alternative corridor crosses the least number of local government boundaries. TWP USR PA -1 APPENDIX A 4-4 SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA TABLE 4-4 Community Impact Summary Number of Local Governments Crossed Alternative Corridor Larimer County Weld County Total' Alternative A Alternative B Alternative C Alternative D • Unincorporated Larimer • Unincorporated Weld County County • Windsor • Timnath • Firestone • Loveland • Frederick • Johnstown • Johnstown • Windsor • Berthoud • Dacono • Mead • Unincorporated Larimer • Unincorporated Weld County County • Windsor • Timnath • Firestone • Johnstown • Frederick • Windsor • Johnstown • Dacono • Mead • Unincorporated Larimer • Unincorporated Weld County County • Windsor • Timnath • Firestone • Frederick • Johnstown • Unincorporated • Unincorporated Weld Larimer County County • Timnath • Windsor • Johnstown • Firestone • Windsor • Frederick • Johnstown 11 9 7 7 a Some local governments are in multiple counties; however, they are counted only once. Wetland/Riparian Crossings Wetland data was obtained from the NWI and includes wetlands designated as freshwater pond, riverine, freshwater emergent, freshwater forested/shrub wetland, lake, and other. The riparian crossings are based on herbaceous and shrub data from the Colorado Natural Heritage Program of Colorado State University. Wetland and riparian areas potentially provide sensitive wildlife habitats, so minimizing impacts to those areas is preferred. A more desirable alternative corridor is one that has the shortest length crossing wetland and riparian areas. The estimated lengths crossing these areas are presented in Table 4-5. TWP USR PA -1 APPENDIX A 4-5 SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA TABLE 4-5 Wetland/Riparian Crossings Summary Alternative Corridor Estimated Length of Wetlands Crossed Estimated Length of Riparian Areas Crossed (miles) (miles) Larimer County Weld County Larimer County Weld County Alternative A Alternative B Alternative C Alternative D 0.32 0.17 0.44 0.17 0.55 0.86 0.98 0.79 1.38 0.45 0.74 0.45 0.53 1.99 1.58 1.21 Floodplain Crossings For this analysis, floodplain crossings were based on FEMA's 100 -year flood zone National Flood Hazard Layer that was developed as part of the FIRM. Below is an excerpt from FEMA's shapefile that further describes the data: "This map service represents Flood Insurance Rate Map (FIRM) data important for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). The National Flood Hazard Layer (NFHL) data present the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The NFHL database is a subset of the information created for the Flood Insurance Studies (FIS) and serves as a means to archive a portion of the information collected during the FIS. The NFHL data incorporates Digital Flood Insurance Rate Map (DFIRM) databases published by Federal Emergency Management Agency (FEMA). The 100 -year flood is referred to as the 1% annual exceedance probability flood, since it is a flood that has a 1% chance of being equaled or exceeded in any single year." Long-term impacts to floodplains will not occur because the water pipeline will be buried and ground surface elevations restored to pre -construction conditions. Constructability issues could be associated with floodplains because the water pipeline could be subject to scour conditions that require it to be buried deeper. Similar to wetland and riparian areas, floodplains potentially provide sensitive wildlife habitat. A more desirable alternative corridor is one that has the shortest estimated length within the floodplain. The estimated lengths that an alternative corridor crosses a floodplain are presented in Table 4-6. TABLE 4-6 Floodplain Crossings Summary Alternative Corridor Estimated Floodplain Length Crossed (miles) Larimer County Weld County Alternative A Alternative B Alternative C Alternative D 4.76 1.16 0.25 1.16 0.77 1.65 2.46 2.08 TWP USR PA -1 APPENDIX A SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA Parcel Owners Feedback received during the outreach meetings indicated that staff in Larimer and Weld Counties and some local governments preferred that the water pipeline be located in easements on privately owned land. To quantify the effect on property owners, a query of the estimated number of parcels that could be crossed was performed on GIS parcel data received from Larimer and Weld Counties. One property owner could own multiple parcels; therefore, a count of unique parcel owners was compiled to determine the number of individual owners that could be impacted. A more desirable alternative corridor is one with the fewest parcel owners impacted. The breakdown of total parcel counts and unique parcel owners are presented in Table 4-7. TABLE 4-7 Parcel Owners Summary Alternative Corridor Count of Parcel Crossings Larimer County Weld County Parcel Owners Total Parcels' Parcel Owners Total Parcelsb Alternative A Alternative B Alternative C Alternative D 128 82 47 83 150 94 58 97 67 148 156 144 101 185 198 180 a Three parcels in Alternative A, 2 parcels in Alternative 8, 4 parcels in Alternative C, and 4 parcels in Alternative D are owned by Thornton in Larimer County. bThree parcels in Alternative B, 3 parcels in Alternative C, and 3 parcels in Alternative D are owned by Thornton in Weld County. Right -of -Way Feedback received during the outreach meetings indicated that the staff in Larimer and Weld Counties and some local governments preferred that the water pipeline be located outside ROW. In some instances, entering the ROW appears to be the best option to minimize impacts to property owners. For example, if a residence was located on each side of the road, the ROW was assumed to be the best location for a water pipeline and the length in that ROW was quantified. ROW crossings were also estimated and were assumed to possibly be required where one side of a road was more congested than another. To meet county and local government preferences, a more desirable alternative corridor is one that has the shortest total length in the ROW. Table 4-8 presents a breakdown of the estimated lengths assumed in ROW per local jurisdiction. TABLE 4-8 Right -of -Way Summary Location Alternative A Estimated Length within ROW (miles) Alternative B Alternative C Alternative D Larimer County Unincorporated 1.24 4.00 3.95 2.34 Larimer County Johnstown 0.15 0.01 0.00 0.01 Loveland 0.03 0.00 0.00 0.00 Timnath 1.86 0.51 0.45 0.51 Windsor 0.04 0.26 0.00 0.26 TWP USR PA -1 APPENDIX A 4 SECTION 4 - DESCRIPTION OF NON -ECONOMIC CRITERIA TABLE 4-8 Right -of -Way Summary Location Alternative A Estimated Length within ROW (miles) Alternative B Alternative C Alternative D Weld County Unincorporated 0.12 1.89 1.08 0.84 Weld County Berthoud 0.01 0.00 0.00 0.00 Dacono 3.09 2.08 0.00 0.00 Firestone 1.09 4.44 0.09 0.09 Frederick 0.73 0.98 0.01 0.01 Johnstown 0.03 0.19 1.46 0.58 Mead 0.03 0.02 0.00 0.00 Windsor <0.01 0.03 4.94 0.03 TWP USR PA -1 APPENDIX A 4-8 Section 5 — Alternative Corridors Analysis The four alternative corridors were compared using the non -economic criteria to aid in the selection of a preferred corridor for the TWP. Non -Economic Scoring Analysis Microsoft Excel was used to summarize the raw data presented in Section 4 to determine a value for each non -economic criterion for each alternative corridor. The summarized values were then normalized for better comparison. A summary of raw data for each non -economic criterion for the alternative corridors is presented in Table 5-1. The raw data corresponds to the method of measurement described in Section 4. TABLE 5-1 Summary of Non -Economic Raw Data Wetland/ Local Geologic Riparian Floodplain Alternative Government Hazards Community Crossings Crossings Parcel ROW Corridor Preference (miles) Impact (miles) (miles) Owners (miles) Alternative A 8 3.4 11 2.8 5.5 195 8.8 Alternative B 5 4.7 9 3.5 2.8 230 12.3 Alternative C 2 0.0 7 3.7 2.7 203 10.0 Alternative D 1 0.0 7 2.6 3.2 227 3.4 The raw data is a representation of impact and were normalized to the same range of numbers for comparison. Once normalized, the information was weighted based on relative importance. To normalize the raw data, a rating scale from 1.0 to 5.0 was chosen with a lower rating being preferred. More than one alternative corridor could have the same rating value if their raw data is the same. Scores were calculated by normalizing the values in Table 5-1. The minimum raw data value presented in Table 5-1 for each criterion received a value of 1.0, and the maximum raw data value for each criterion received a value of 5.0. Other scores were normalized based on ratio of score with highest and lowest raw data values. Table 5-2 presents the normalized scores. TABLE 5-2 Non -Economic Relative Normalized Scoring (LOW SCORE PREFERRED) Local Wetland/ Alternative Government Geologic Community Riparian Floodplain Parcel Corridor Preference Hazards Impact Crossings Crossings Owners ROW Alternative A 5.0 3.8 5.0 1.5 5.0 1.0 3.4 Alternative B 3.3 5.0 3.0 4.1 1.2 5.0 5.0 Alternative C 1.6 1.0 1.0 5.0 1.0 1.9 4.0 Alternative D 1.0 1.0 1.0 1.0 1.8 4.7 1.0 TWP USR PA -1 APPENDIX A 5-1 SECTION 5 - At TERNATIVE CORRIDORS ANALYSIS The criteria were then weighted to determine the importance of each criterion as compared to the other criteria. The weighting factor assigned to each criterion was based on the relative importance of each category as determined by CH2M HILL based on discussions with Thornton and experience on other similar projects. Figure 5-1 shows how the comparison was made. In this graphic, each criterion is associated with a corresponding letter. Then, using a grid system, the criteria in the rows were compared to the same criteria in the columns. The letter for the criterion that is more important is entered in the intersecting cell. For example, when comparing Geologic Hazards (B) to Community Impacts (C), the disruption to the community was determined to be of more importance than the implications of constructing the pipeline in a geologic hazard of mine subsidence. Therefore, a "C" was placed in the cell. When compared to itself, a criterion gets its own letter. For example, when Floodplain Crossings (E) is compared to itself, a "E" gets placed in the cell. In this way each criterion is represented at least once on the grid. The count of the letters was summed in the Number of Responses column. Community Impacts (C) was determined to be more important than 3 other criteria and has a total of 5 Cs in the grid. Because there are 28 total letters, each letter is 3.6 percent out of 100 percent of letters (100 percent divided by 28 = 3.6 percent). The count of letters in the grid were then multiplied by 3.6 percent to get a weighted percentage for each criterion. A B C D E F G Criteria Local Government Preference Geologic Hazard Community Impacts Wetland! Rip arian Crossings Floodplain Crossings Parcel Owners T c9 O E Number of Responses Weighted Percentage A Local Government Preference A �' � `' 71, 25.0% B Geologic Hazard - F G 3.6% C Community Impacts �` C C • 17.9% D WetlandlRiparian Crossings I: D F 17.9% E Floodplain Crossings E 7.1°1, F Parcel Owners F 10.7°';, G Right -of -Way u• 17.9", 28 100.0% FIGURE 5-1 Non -economic Criteria Weighting Summary DA/P USR PA 1 APPENDIX A 52 SECTION S - ALTERNATIVE CORRIDORS ANALYSIS The weights calculated as shown in Figure 5-1 were used to determine a weighted score for each criterion. Table 5-3 presents the normalized score from Table 5-2 that was multiplied by the weighting shown in Figure 5-1. For example, the Geologic Hazards score for Alternative A in Table 5- 2 (3.8) was multiplied by the weighted percentage in Figure 5-1 (3.6 percent) to determine the weighted criteria score (3.8 times 0.036 equals 0.1368, which can be rounded to 0.14). The weighted scores for each alternative were then summed to develop one total score. The lowest total score is more desirable. When considering the importance of each criterion, the weighted scores result in Alternative D being the most desirable alternative corridor, with Alternative B being the least desirable alternative corridor based on non -economic criteria. TABLE 5-3 Weighted Non -economic Criteria Local Wetland/ Alternative Government Geologic Community Riparian Floodplain Parcel Total Corridor Preference Hazards Impact Crossings Crossings Owners ROW Score (TOTAL LOW SCORE WINS) Alternative A 0.89 0.14 0.89 0.28 0.89 0.18 0.61 3.88 Alternative B 0.59 0.18 0.54 0.72 0.21 0.89 0.89 4.02 Alternative C 0.28 0.04 0.18 0.89 0.18 0.34 0.71 2.62 Alternative D 0.18 0.04 0.18 0.18 0.32 0.83 0.18 1.90 TWP USR PA -1 APPENDIX A 5-3 Section 6 — Conclusion This technical report summarizes the means and methods used to select the preferred corridor for the water pipeline from the WSSC Reservoir No. 4 outlet structure to 168' Avenue. Four alternative corridors were evaluated using non -economic criteria. Alternative D was determined to have the most desirable score as presented in Table 6-1. Alternative A Alternative A is the third most desirable alternative corridor with a total score of 3.88. It has the fewest estimated number of parcel owners impacted. However, Alternative A has the highest scores for community impacts, floodplain crossings, and local government preference. This alternative corridor crosses the fewest unique parcels owners because the parcels are generally larger in size compared to parcels in other alternative corridors. Alternative B Alternative B is the least desirable alternative corridor in terms of non -economic criteria with the highest total score of 4.02. Alternative B is located in more developed areas when compared to other alternative corridors, which increases the scores for parcel owners, ROW, and local government preference. It also has the highest score for geologic hazards. The increased ROW length of Alternative B is due to limitations created by water bodies and development in Windsor. Alternative C Alternative C is the second most desirable alternative corridor with a total score of 2.62. Similar to Alternative D, it has the lowest scores for geologic hazards and community impacts. However, it has the highest score for wetland/riparian crossings. Alternative D Alternative D is the most desirable alternative corridor with a total score of 1.90. It has the lowest scores for wetland/riparian crossings, ROW, and local government preference. Similar to Alternative C, it has the lowest scores for geologic hazards and community impacts. Alternative D has a higher score relative to some of the other alternative corridors for parcel owners. Based on the analysis, Alternative D is the optimum route. TABLE 6-1 Weighted Non -economic Criteria Local Wetland/ Alternative Government Geologic Community Riparian Floodplain Parcel Total Corridor Preference Hazards Impact Crossings Crossings Owners ROW Score (TOTAL LOW SCORE WINS) Alternative A 0.89 0.14 0.89 0.28 0.89 0.18 0.61 3.88 Alternative B 0.59 0.18 0.54 0.72 0.21 0.89 0.89 4.02 Alternative C 0.28 0.04 0.18 0.89 0.18 0.34 0.71 2.62 Alternative D 0.18 0.04 0.18 0.18 0.32 0.83 0.18 1.90 TWP USR PA -1 APPENDIX A 6 1 Appendix B Natural and Cultural Resources Assessment ERC) ERO Resources ( or p 1842 Clarkson tit Denver, CC) 80218 303.830.1 18 ‘vww.eroresources.c,)nl NATURAL AND CULTURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO Prepared.for City of Thornton 9500 Civic Center Drive Thornton, Colorado 80229 Prepared by ERO Resources Corporation 1842 Clarkson Street Denver, Colorado 80218 (303) 830-1188 December 20. 2017 ERO Project #5241 CONTENTS Overview of Proposed Project 1 Project Corridor Description 7 Environmental Impact Analysis 3 Open Waters, Wetlands, and Riparian Areas 3 Description 3 Open Waters, Wetlands, and Riparian Impacts 8 Terrestrial and Aquatic Animals and Habitat 9 Federal Threatened, Endangered, and Candidate Animal Species 9 State Animal Species of Concern 13 Raptors and Other Migratory Birds 30 Big Game/Large Mammals 33 Other Game and Nongame Species 37 Aquatic Species and Habitat 38 Terrestrial and Aquatic Plant Life 38 Vegetation Communities 38 Federal Threatened, Endangered, and Candidate Plant Species 41 Rare and Sensitive Plant Species 45 Areas of Historic or Archaeological Importance 46 Description 46 Impacts 47 Monitoring and Mitigation Plan 48 Open Waters, Wetlands, and Riparian Areas 48 Terrestrial and Aquatic Animals and Habitat 48 Terrestrial and Aquatic Plant Life 49 Noxious Weed Management 49 Areas of Historic or Archaeological Importance 50 References 50 TABLES Table 1. Federally threatened, endangered, and candidate wildlife species potentially found in Larimer, Weld, and Adams Counties or potentially affected by projects in Larimer, Weld, and Adams Counties 10 Table 2. State animal species of concern potentially found in the TWP corridor and study buffer or with potential to be affected by the TWP. 14 Table 3. Raptor nest locations in or near the TWP corridor and study buffer32 Table 4. Total acreages of vegetation communities within the TWP corridor and study buffer by county41 Table 5. Federally threatened, endangered, and candidate plant species potentially found in Larimer, Weld, and Adams Counties or potentially affected by projects in Larimer, Weld, and Adams Counties 42 Table 6. Waters in the TWP corridor and study buffer with potential habitat for CBP and ULTO45 i Table 7. Plant species considered rare or imperiled by the CNHP that potentially occur in the TWP corridor and study buffer. 45 FIGURES Figure 1. Figure 2. Figure 3. Figures 4. Figures 5. Figure 6. Figure 7. Figures 8. Vicinity Map Map Index Special Status Wildlife Overview 1-4.55. Vegetation Communities 1-5.55. Wildlife General Wildlife Overview Mule Deer and White-tailed Deer Overview 1—8.23. OAHP Search Results APPENDICES Appendix A Summary of Water Features in the TWP Corridor and Study Buffer Appendix B Cultural Resources in the TWP Corridor and Study Buffer Appendix C Photo Log ii THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT DECEMBER 20, 2017 Overview of Proposed Project The City of Thornton (Thornton) retained ERO Resources Corporation (ERO) to provide a natural and cultural resources assessment to assist Thornton's planning for the Thornton Water Project (TWP), a proposed domestic water transmission project in Larimer, Weld, and Adams Counties, Colorado. This report is intended to support the major land use permits Thornton is seeking from Weld and Larimer Counties and to aid in the future development of the final alignment for the water pipeline by detailing the natural and cultural resources found within the TWP corridor. Currently, no major land use permit is expected to be required in Adams County. However, natural and cultural resource assessments were also conducted in Adams County and will be used to aid in the development of the final alignment. The TWP corridor route begins north of Fort Collins in unincorporated Larimer County, travels east and crosses Interstate 25 (I-25) to the Larimer/Weld County Line, and then travels southeast to Thornton in Adams County (Figure 1). The TWP has been divided into the following segments for permitting submittals: • Weld County Permit Application 1 - 168th Avenue to just north of the St. Vrain River • Weld County Permit Application 2 — Just north of the St. Vrain River to the southern political boundary of Windsor • Weld County Permit Application 3 — The Weld County side of County Road 13 between the southern political boundary of Windsor and the proposed water storage tank location • Larimer County Permit Application 1 - All of Larimer County from East Larimer County Road 14/Weld County Road 50 to Water Supply and Storage Company (WSSC) Reservoir No. 4 • Thornton/Adams County — Portions of the TWP corridor within the City of Thornton or unincorporated Adams County ERO assessed the TWP corridor, which is up to 1/4 mile wide and approximately 69 miles long, plus a 500 -foot additional study buffer (study buffer) on either side of the 1 THORNTON WA !ER PROJECT NATURAL. AND CULTURAL RESOURCES ASSESSMENT TWP corridor. The proposed pump station and water storage tank sites had a 1.200 -foot buffer around the site boundaries. Information provided in this report, in addition to other evaluation criteria, will be used to develop the final alignment of the water pipeline within the TWP corridor. ERO conducted surveys along the TWP corridor and study buffer on May 10. 11, 12, and 16 and July 14, 2016 (2016 site visits) adjacent to public roads or on "Thornton -owned property and assessed natural resources via aerial imagery for areas that were inaccessible. ERO also conducted a Class I File Search and Literature Review for cultural resources for the TWP corridor and study buffer. This report provides information on existing site conditions. including natural and cultural resources within the TWP corridor and study buffer, anticipated impacts from the TWP, and a list of monitoring and mitigation measures to minimize or eliminate potential impacts. This report includes an environmental impact analysis and monitoring and mitigation plan for the following four resources: 1) open waters, wetlands. and riparian areas; 2) terrestrial and aquatic animals and habitat; 3) terrestrial and aquatic plant life; and 4) areas of historic or archaeological importance. Thornton is proposing to use trenchless construction methods to cross jurisdictional waters of the U.S. and suitable habitat for federally threatened and endangered species. Based on this approach, it is anticipated that the TWP would not require any federal approvals such as a Clean Water Act 404 permit or consultation under the Endangered Species Act. Thornton has been in discussions with the U.S. Army Corps of Engineers (Corps) and plans to submit a request for an approved jurisdictional determination to the Corns to determine which areas in the TWP corridor are jurisdictional. Project Corridor Description The TWP corridor and study buffer is in Larimer, Weld, and Adams Counties, Colorado (Figure 1). The TWP route begins north of the City of Fort Collins in unincorporated Larimer County, travels east and crosses Interstate 25 to the Larimer/Weld County line, and then travels southeast to Thornton in Adams County. A majority of the TWP corridor is located along municipal and county roads, with upland vegetation characterizing both sides of the TWP corridor and study buffer (Appendix C, 2 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Photo I ). Other sections cross undeveloped grasslands, agricultural fields, housing subdivisions, and between ponds, reservoirs, and wetlands. Environmental Impact Analysis Open Waters, Wetlands, and Riparian Areas Description The information on waters and wetlands presented in this report focuses on waters and wetlands subject to the Corps jurisdiction under Section 404 of the Clean Water Act. These waters and wetlands are referred to as "jurisdictional" or "waters of the U.S." in this report. "Potential waters of the U.S." and "potential wetlands" are waters and wetlands that may be jurisdictional, but their jurisdictional status has yet to be determined by the Corps. An approved jurisdictional determination from the Corps would be needed to clarify each feature's jurisdictional status. Thornton plans to coordinate with the Corps on an approved jurisdictional determination for the TWP once the water pipeline alignment and facility locations have been finalized. ERO assessed the TWP corridor and study buffer for potential isolated wetlands, jurisdictional wetlands, and other waters of the U.S. during the 2016 site visits. Prior to the site visits, ERO reviewed National Wetland Inventory (NWI) mapping for the TWP corridor and study buffer, as well as data from the USGS National Hydrography Dataset (NHD). ERO also reviewed 2015 aerial photographs for potential wetlands and open water. The boundaries of wetlands and open water were determined based on the 2016 site visits, NWI mapping, NHD mapping, and aerial photographs. The determination on whether a wetland or open water area is a potential water of the U.S. was based on reviewing NHD mapping to determine if the area has a possible connection to any known waters of the U.S. ERO mapped 76 wetlands and 131 potential waters of the U.S. in the TWP corridor and study buffer. About 198.92 acres of potential wetlands and 560.08 acres of potential other waters of the U.S. were mapped inside the TWP corridor and study buffer. Of those acres, approximately 123.92 acres of potential wetlands and 516.04 acres of potential waters of the U.S. were mapped inside the TWP corridor only. Below are 3 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT descriptions of the potential waters of the U.S. found in the TWP corridor and study buffer. All of the wetlands and waters with the potential to be jurisdictional are shown on Figures 4.1 4.55. Acreages shown on the figures represent total area within the TWP corridor and study buffer. Appendix A provides a summary of water features, including potential waters of the U.S., mapped during the 2016 site visits, general descriptions, proximity to traditional navigable waters (TNWs), locations, and acreages within the TWP corridor and study buffer. Information on proximity is important in determining the jurisdictional status of a water or wetland. The Corps considers TNWs and tributaries to TNWs that are relatively permanent waters (RPWs) to be jurisdictional, as well as wetlands that connect to TNWs or are adjacent to RPWs. Waters and wetlands that lack a surface hydrologic connection to a TNW or RPW are typically considered isolated and nonjurisdictional. Perennial Streams Box Elder Creek Box Elder Creek is a perennial stream flowing from north to south through the TWP corridor and study buffer (Figure 4.6). Box Elder Creek is about 4 feet wide within the TWP corridor and study buffer and is a tributary to the Cache la Poudre River, which is a tributary to the South Platte River, a TNW. Fringe wetlands occur along the banks of the creek within the TWP corridor and study buffer. Due to its perennial flow and connection to a TNW, Box Elder Creek is considered a jurisdictional water of the U.S. by the Corps. Cache la Poudre River (Poudre River) The Poudre River is a perennial stream flowing from northwest to southeast through the TWP corridor and study buffer (Figure 4.18). The Poudre River ranges from 25 to 90 feet wide within the TWP corridor and study buffer and is a tributary to the South Platte River, a TNW. Wetlands dominated by sandbar willow occur along the banks of the Poudre River within the TWP corridor and study buffer. Due to its perennial flow and connection to a TNW, the Poudre River is considered a jurisdictional water of the U.S. by the Corps. 4 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Big Thompson River The Big Thompson River is a perennial stream flowing from west to east through the TWP corridor and study buffer (Figures 4.22 and 4.23). The Big Thompson River is about 18 to 22 feet wide within the TWP corridor and study buffer and is a tributary to the South Platte River, a TNW. Wetlands dominated by sandbar willow, broadleaf cattail, and reed canarygrass occur along the banks of the Big Thompson River within the TWP corridor and study buffer. Due to its perennial flow and connection to a TNW, the Big Thompson River is considered a jurisdictional water of the U.S. by the Corps. Little Thompson River The Little Thompson River is a perennial stream flowing from west to east through the TWP corridor and study buffer (Figures 4.26 and 4.27). The Little Thompson River is about 13 feet wide with 4 -foot -wide wetland fringes on either side of the river within the TWP corridor and study buffer (Appendix C, Photo 2). The Little Thompson River is a tributary to the South Platte River, a TNW. Due to its perennial flow and connection to a TNW, the Little Thompson River is considered a jurisdictional water of the U.S. by the Corps. St. Vrain Creek St. Vrain Creek is a perennial stream flowing from southwest to northeast through the TWP corridor and study buffer (Figures 4.33 and 4.34). St. Vrain Creek ranges from 50 to 200 feet wide with wide eroded banks due to the September 2013 flood. Potential wetlands occur along and adjacent to St. Vrain Creek and consist of sandbar willow and reed canarygrass. St. Vrain Creek flows northeast to the South Platte River, a TNW. Due to its perennial flow and connection to a TNW, St. Vrain Creek is considered a jurisdictional water of the U.S. by the Corps. Little Dry Creek Little Dry Creek is a perennial stream flowing from southwest to northeast through the TWP corridor and study buffer (Figure 4.42). ERO did not have access to Little Dry Creek during the 2016 site visits. Based on aerial imagery, Little Dry Creek may contain abutting wetlands within the TWP corridor and study buffer. Little Dry Creek flows northeast to the South Platte River, a TNW. Due to its perennial flow and connection to 5 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT the South Platte River, Little Dry Creek is considered a jurisdictional water of the U.S. by the Corps. Big Dry Creek Big Dry Creek is a perennial stream flowing from west to east through the TWP corridor and study buffer (Figures 4.44 and 4.45). Big Dry Creek ranges from 4 to 15 feet wide and has potential wetland fringes of broadleaf cattail, sandbar willow, and common spikerush. Big Dry Creek is a tributary to the South Platte River, a TNW (Appendix C, Photo 3). Due to its perennial flow and connection to a TNW, Big Dry Creek is considered a jurisdictional water of the U.S. by the Corps. Todd Creek Todd Creek is a perennial stream flowing west to east through the TWP corridor and study buffer (Figure 4.47). The creek is about 4 feet wide and its banks are vegetated with potential wetlands dominated by cattail (Typha sp.). Todd Creek flows into Brighton Ditch, which has a connection to the South Platte River, a TNW. Due to its perennial flow and connection to the South Platte River, Todd Creek is considered an RPW by the Corps and is jurisdictional. Grange Hall Creek Grange Hall Creek is a perennial stream flowing west to east through the TWP corridor and study buffer (Figures 4.53-4.55). The creek ranges from 2 to 8 feet wide and contains ponded areas throughout. Wetland vegetation along the creek is dominated by cattail, reed canarygrass, sandbar willow, and softstem bulrush. Grange Hall Creek flows into the South Platte River, a TNW. Due to its perennial flow and connection to the South Platte River, Grange Hall Creek is considered an RPW by the Corps and is jurisdictional. Ephemeral and Intermittent Streams Numerous unnamed streams enter the TWP corridor and study buffer at several locations (Figures 4.12, 4.13, 4.28, 4.29, 4.31, 4.32, 4.36, 4.43 4.45, 4.47-4.51, 4.53, and 4.54). The majority of the ephemeral and intermittent streams consist entirely of wetland vegetation (W8, W9, W22, W23, W33, W35, W38, W39, W40, W45, W50, W52, W53, W57, W58, W64, W66, W67, and W72), largely characterized by cattail, reed 6 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT canarygrass, and Baltic rush. Unnamed Drainage 1 and Unnamed Drainage 2 contain an ordinary high water mark (OHWM); wetlands occur adjacent to Unnamed Drainage I (Figure 4.29) and uplands occur adjacent to Unnamed Drainage 2 (Figure 4.45). Unnamed Drainage 3 contains wetlands consisting of broadleaf cattails and Baltic rush (Figure 4.47). Unnamed Drainages 4, 5, and 6 are 2- to 4 -foot -wide drainages with fringe wetlands (Figures 4.14, 4.49, and 4.53). The potential connection of the intermittent and ephemeral drainages to known waters of the U.S. is discussed in Appendix A. Canals and Ditches Approximately 39 ditches and canals are located within the TWP corridor and study buffer (Appendix A). The following canals and ditches are located within both the TWP corridor and study buffer: Jackson Ditch, Bull Ditch, Cactus Hill Lateral, Coalridge Ditch, Colorado Agricultural Canal, Dry Creek Ditch, Farmers Ditch, Farmers Extension Ditch, Greeley No. 2 Canal, Hill and Brush Ditch, Hillsboro Ditch, Home Supply Ditch, Lake Canal, Larimer and Weld Canal, Larimer County Ditch, Last Chance Ditch, Lee Lateral, Loveland and Greeley Canal, Lupton Bottom Ditch, No. 8 Outlet Ditch, Signal Ditch, Stanley Ditch, Stanley Lateral Ditch, Thompson Ditch, Unnamed Lateral from Last Chance Ditch, and 9 other unnamed ditches (Figures 4.1 4.55). The following canals and ditches are located within the study buffer only: Cowan Ditch Lateral, Lower Clear Creek Canal, Unnamed Ditch 10, and Windsor Ditch (Figures 4.33-4.36, 4.45, 4.51, and 4.52). Unnamed Ditch 9 occurs within the TWP corridor only (Figure 4.34). The canals and ditches generally range from 2 to 15 feet wide within the TWP corridor and study buffer and the banks typically consist of bare dirt, riprap, or concrete. Potential wetland fringes occur along several of the canals and ditches, and wetland vegetation in these areas consists primarily of broadleaf cattail and reed canarygrass. The Corps considers canals and ditches that convey water from a water of the U.S. to a water of the U.S., or that intercept a water of the U.S., jurisdictional. The potential connection of the canals and ditches to any known waters of the U.S. is discussed in Appendix A. Roadside Swales Several roadside swales with wetland vegetation are located within the TWP corridor and study buffer (Figures 4.1-4.55). The wetland vegetation consists primarily of 7 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT broadleaf cattail. The Corps typically does not consider roadside ditches and swales jurisdictional due to isolation from known waters of the U.S. Ponds, Lakes, and Reservoirs Nine lakes and reservoirs, and 68 unnamed ponds occur within the TWP corridor and study buffer. Annex No. 8 Reservoir, Cobb Lake, Elder Reservoir, Hinkley Lake, Oklahoma Reservoir, Timnath Reservoir, Water Supply and Storage Reservoir No. 4, and 52 unnamed ponds occur within the TWP corridor (Figures 4.1-4.55). Smith Reservoir, Terry Lake, and 16 unnamed ponds occur within the study buffer only (Figure 4.1-4.3, 4.12, 4.17. 4.23. 4.31, 4.33. 4.36, 4.44, 4.45, 4.47, 4.48, and 4.53-4.55). Wetland fringes occur along several of the unnamed ponds (Appendix C, Photo 4), reservoirs, and lakes; wetland vegetation in these areas consist primarily of broadleaf cattail. The Corps typically does not consider artificial lakes or ponds created by excavating and/or diking dry land to collect and retain water. and which are used exclusively for purposes such as stock watering, irrigation, settling basins or rice growing, jurisdictional. However, several of the unnamed ponds are part of an intermittent drainage system, some of which have downstream connections to other waters of the U.S. The potential connection of the ponds. lakes. and reservoirs to any known waters of the U.S. is discussed in Appendix A. Wetlands ERO mapped 76 potential wetlands within the TW'P corridor and study buffer (Figures 4.1-4.55). Of the 76 wetlands that were mapped, 19 occur within the TWP corridor only, 12 occur within the study buffer only, and 45 occur within both the TWP corridor and study buffer. Wetlands occur along several of the water features identified above, and vegetation within the wetlands largely consists of broadleaf cattail, Baltic rush, and reed canarygrass. More details on wetland vegetation are provided in the Vegetation Communities section of this report. Open Waters, Wetlands, and Riparian Impacts The proposed water pipeline would cross several open waters. wetlands, and riparian areas; however, construction of the TWP has been designed to minimize impacts on wetlands and waters by avoiding the discharge of dredged or fill material into jurisdictional waters and wetlands. Any jurisdictional open waters or wetlands would be 8 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT crossed using trench less construction methods. Thornton has met with the Corps to discuss the proposed approach of avoiding impacts to jurisdictional open waters or wetlands. Open waters and wetlands determined to be nonjurisdictional and any riparian areas would be temporarily impacted by open cut trenching activities. During construction, the trench would be as narrow as safely practicable when crossing nonjurisdictional waters and wetlands or any riparian areas. All temporary impacts would be returned to preproject conditions following completion of the proposed activities. BMPs would be implemented during construction, which would help minimize or eliminate impacts on the TWP corridor and study buffer. These BMPs include installing temporary fencing to deter access to sensitive areas outside the TWP corridor limits, placing staging areas in previously disturbed upland areas, and installing sediment- and erosion -control devices to minimize surface runoff in disturbed areas. All temporarily disturbed areas would be returned to preconstruction grades, planted with native seed mixes or as reasonably specified by property owner, and mulched. Terrestrial and Aquatic Animals and Habitat Information on terrestrial and aquatic animals was obtained from various sources including Colorado Parks and Wildlife (CPW), Colorado Natural Diversity Information System (CNDIS), Colorado Natural Heritage Program (CNHP), U.S. Fish and Wildlife Service (Service), published literature, and field surveys. ERO visited the TWP corridor and study buffer, where accessible, to assess potential wildlife habitat during the 2016 site visits. The following sections discuss species likely to occur within the TWP corridor and study buffer and the potential effects of the TWP. Federal Threatened, Endangered, and Candidate Animal Species ERO assessed the TWP corridor and study buffer for potential habitat for federally threatened, endangered, and candidate species protected under the Endangered Species Act (ESA). The Service lists several threatened and endangered species with potential habitat in Larimer, Weld, and Adams Counties, or with the potential to be affected by projects in Larimer, Weld. and Adams Counties (Table 1). Only species with potentially 9 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT suitable habitat in the TWP corridor and study buffer and species affected by water depletions from the South Platte River are discussed in more detail below. Table 1. Federally threatened, endangered, and candidate wildlife species potentially found in Larimer, Weld, and Adams Counties or potentially affected by projects in Larimer, Weld, and Adams Counties. Common Name Scientific Name Status' County Habitat Suitable Habitat Present Mammals Canada lynx Lynx canadensis Larimer Dense subalpine forest and willow -choked corridors along mountain streams and avalanche chutes No FT, SE North American wolverine Gulo gulo luscus FP.I. Larimer Deep, persistent, and reliable spring snow cover; primarily boreal forests, tundra, and western mountains No Preble's meadow jumping mouse Zapus hudsonius preblei FT, ST Larimer, Weld, Adams Shrub riparian/wet meadows Yes Birds Interior least tern Sterna antillarum athalassos FE, SE Larimer, Weld, Adams Sandy/pebble beaches on lakes, reservoirs, and rivers No Mexican spotted owl Strix occidentalis FT, ST Larimer, Weld, Adams Closed canopy forests in steep canyons No Piping plover Charadrius melodus FT, ST Larimer, Weld, Adams Sandy lakeshore beaches and river sandbars No Whooping crane" Grus americana FE, SE Larimer, Weld, Adams Mudflats around reservoirs and in agricultural areas No Fish Greenback cutthroat trout Oncorhynchus clarki stomias Larimer Cold, clear, gravely headwater streams and mountain lakes in the South Platte and Arkansas River basins No FT, ST Pallid sturgeon" Scaphirhynchus albus FE — Large, turbid, free -flowing rivers with a strong current and gravel or sandy substrate No Insects :\rapahoe snoVv fly Arsapnia arapahoe FC Larimer Cold, clean, well -oxygenated streams and rivers; found in only two tributaries (Elkhorn Creek and Young Gulch) of the Poudre River in Colorado No *FE = Federally Endangered Species; FT = Federally Threatened Species; FC = Federal Candidate; FPT = Federally Proposed Threatened; SE = State Endangered Species; ST = State Threatened Species. 'Water depletions in the South Platte River may affect the species and/or critical habitat in downstream reaches in other counties or states. Source: Service 2016. 10 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Preble's Meadow Jumping Mouse Species Background Preble's meadow jumping mouse (Zapus hudsonius preblei) (Preble's) was listed as a threatened species on May 13, 1998 under the ESA (Federal Register (FR) Vol. 63, No. 232:66777-66784, December 3, 1998). Under existing regulations, either a habitat assessment or a full presence/absence survey for Preble's is required for any habitat - disturbing activity within areas determined to be potential Preble's habitat (generally stream and riparian habitats along the Colorado Front Range and southeastern Wyoming). Typically, Preble's occurs below 7,600 feet in elevation, generally in lowlands with medium to high moisture along permanent or intermittent streams and canals (Meaney et al. 1997). Preble's occurs in low undergrowth consisting of grasses and forbs, in open wet meadows, riparian corridors near forests, or where tall shrubs and low trees provide adequate cover (Service 1999; Meaney et al. 1997). Preble's typically inhabits areas characterized by well -developed plains riparian vegetation with relatively undisturbed grassland and a water source nearby (Service 2014). Potential Habitat ERO reviewed the TWP corridor and study buffer for potential Preble's habitat. None of the drainages that occur within the TWP corridor and study buffer have been identified by the Service as areas essential to the recovery of Preble's (75 FR 78429). Preble's is known to occur in two drainages that cross the TWP corridor and study buffer -the Little Thompson River and the Big Thompson River. Preble's has been captured twice along the Little Thompson River approximately 0.8 mile downstream and approximately 1.3 miles downstream from the point where the TWP corridor and study buffer cross the Little Thompson River (Savage and Savage 2001). Field reviews indicate this portion of the Little Thompson River provides potentially suitable Preble's habitat and should be considered potentially occupied habitat unless cleared by a presence/absence trapping survey. Preble's has also been captured along the Big Thompson River approximately 1.7 miles downstream from the point where the TWP corridor and study buffer cross the Big Thompson River. Field reviews indicate the section of the Big Thompson River where the TWP corridor and study buffer cross 11 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT provides low -quality Preble's habitat, with limited shrub cover and heavy human disturbance present. All other potential wetlands, riparian habitat, and ditches found in Weld and I.arimer Counties would also be considered potential Preble's habitat; however, these areas are not suitable habitat or are unlikely to support a population of Preble's because they 1) are largely dominated by cattail, 2) are isolated from known Preble's populations, 3) are within areas previously surveyed or assessed for Preble's habitat with no Preble's or Preble's habitat found (Figures 5.1-5.55), or 4) do not contain adequate shrub cover to be considered suitable habitat. This includes St. Vrain Creek and the Poudre River (Appendix C, Photo 5) where suitable habitat is present but previous surveys and evaluations within or adjacent to the TWP corridor and study buffer have not found Preble's or Preble's habitat. The section of the TWP corridor and study buffer within Adams County is located within an area designated by the Service as the Denver Metro Block Clearance Zone. In designating a block clearance zone, the Service eliminated the need for individuals or agencies to coordinate with the Service prior to conducting activities in habitats that otherwise would be deemed to have potential to support Preble's. Impacts No impacts on Preble's or its habitat are anticipated to occur from the TWP. Although wetland and riparian habitat along the Little Thompson River in the TWP corridor provides potentially suitable Preble's habitat, these drainages and the adjacent wetland and riparian habitat would be crossed by using trenchless construction methods. Using trenchless construction methods in areas with suitable Preble's habitat would eliminate impacts on Preble's habitat. A site assessment would be completed to determine the boundaries of potential or suitable habitat for Preble's to confirm construction would not occur in those areas. A habitat assessment would be submitted to the Service when the final alignment has been determined to confirm the boundaries of potential habitat identified within the alignment and to confirm the TWP would have no effect on Preble's or its habitat. 12 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Platte River Species Species Background The least tern (Sterna antillarum), piping plover (Charadrius melodus), whooping crane (Grus americana), and pallid sturgeon (Scaphirhynchus albus) are species that rely heavily on habitat provided by the South Platte River system. The least tern, piping plover, and whooping crane may migrate through Colorado or may occasionally nest on wide, sandy shores of reservoirs, typically in eastern Colorado. The TWP corridor and study buffer consist primarily of semiarid grassland and residential/commercial development habitat that is unsuitable for these species. Pallid sturgeon is a fish found in the Missouri and Middle Mississippi Rivers. Potential Habitat Suitable habitat for the least tern, piping plover, whooping crane, and pallid sturgeon is not found in the TWP corridor or study buffer. Impacts The Service has determined that federal actions that cause new depletions or that would allow historic depletions to continue to the South Platte River system adversely affect the least tern, piping plover, whooping crane, and pallid sturgeon and their habitats. The continued diversion of the water to be conveyed by the TWP would be considered a historic depletion to the South Platte River system. However, consultation on effects to South Platte River species is only required when a federal action is required. Because no federal action is anticipated, consultation on these species is not required. It should be noted, however, that Thornton is a member of the South Platte Water Related Activities Program (SPWRAP). SPWRAP serves as the vehicle by which Colorado water users participate in the South Platte River Recovery Implementation Program in central Nebraska and obtain regulatory benefits provided by that program. State Animal Species of Concern ERO assessed the TWP corridor and study buffer for potential habitat for Colorado threatened, endangered, and species of special concern, as well as species that have been described as rare, vulnerable, or imperiled in the state by the CNHP. The TWP corridor 13 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT contains suitable or potentially suitable habitat for several state -listed and sensitive wildlife species (Table 2), which are described in more detail below. Table 2. State animal species of concern potentially found in the TWP corridor and study buffer or in ith potential to be affected by the TWP. Common Name Scientific Name State Status1 I CNHP Rank2 ah llitat Suitable Habitat Present Amphibians and Reptiles Common garter snake Ihamnophrs sirtalis SC NI Limited to the tloodplain ot'the South Platte River and its tributaries, in Colorado Yes — tributaries to the South Platte River in the TWP corridor and study buffer Northern leopard frog Rana pipiens SC (15. 53 Wetlands, streams, beaver ponds, stock ponds, wet meadows, and floodplains; typically clear streams with sandy soils Yes — wetlands and streams in the TWP corridor and study buffer Mammals Black -footed ferret* Mustela nigripes SE GI, S1 Grasslands or shrublands that support prairie dogs; eastern plains, mountain parks, and western valleys of Colorado No — TWP corridor and study buffer do not contain any experimental populations Black -tailed prairie dog Cynomys ludovicianus SC G4, S3 Shortgrass prairie Yes —active prairie dog colonies observed in the TWP corridor and study buffer River otter Lontra canadensis ST Riparian habitat; dependent on high -quality, permanent bodies of water Yes — north end of the TWP corridor and study buffer cross known species' range Swift fox I ulpes velox SC G3, S3 Shortgrass prairie; agricultural lands Yes — marginally suitably habitat in TWP corridor and study buffer, but no dens observed Townsend's big -eared bat subsp. ('orynorhinus rownsendii pallescens SC G3/4. S2 Mines, caves, and large rock cavities to elevations above 9.500 feet No suitable habitat Birds Bald ea4zle Italiaeetus leucocephalus SC US. S 1/3 Typically nests in trees near rivers and lakes; along the Colorado Front Range, may occasionally nest in upland trees with a nearby food source (prairie dogs); forages in open water, at times in prairie dog towns Yes — suitable nesting habitat in the TWP corridor and study buffer; winter roosts and potential foraging areas in the TWP corridor and study buffer Black -necked stilt Himantopus mexicanus G5, S3 Shallow wetlands; salt ponds. flooded lowlands, or shallo's lagoons Yes — suitable habitat in the TWP corridor and study buffer Bumming owl Athene cunicularia ST G4, S4 Shortgrass prairie with prairie dog colonies Yes — prairie dog burrows located in the TWP corridor and study buffer 14 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT ( (minion Name Scientific Name State , Status' ( \tIP Ran1:2 Habitat Suitable Habitat Present Ferruginous hawk Buteo regalis SC 64, S3/4 Shortgrass prairie Yes — nests in Weld County, may winter along entire TWP corridor and study buffer Long -billed curlex% Numenius americanus SC G5, S2 Shortgrass prairie near water Potentially — known to breed in Weld and Adams Counties Mountain hlo%er Charadrius montanus SC G3, S2 Open, flat tablelands and shortgrass prairie vegetation less than 6 inches high; breeds in areas with 30 percent bare ground, including grazed grasslands, fallow fields, and prairie dog towns Unlikely — very little suitable habitat for mountain plovers occurs in the TWP corridor and study buffer; plovers are vulnerable to human and vehicle disturbance Peregrine falcon Falco peregrinus anatum SC G4, S2 Open or partially wooded habitats; breed on cliffs and rock outcrops Yes — winter/ migration in the TWP corridor and study buffer; no suitable breeding habitat Fish Brassy minnow Hybognathus hankinsoni ST G5, S3 Grassland streams and small ponds; cooler, flowing waters or pools with sand and gravel substrate with aquatic vegetation Potentially — known to occur in St. Vrain Creek. Poudre River, and South Platte River Common shiner Luxilus cornutus S I 65, S2 Cool, clear streams with moderate gradient, gravelly bottoms, and shady areas Potentially — known to occur in cool transitional zone streams in the South Platte River Basin Iowa darter l:theostoma exile SC G5, S3 Cool, clear waters over sand or organic substrate, with side bank vegetation that extends over water; also in ponds and lakes Potentially — known to occur in St. Vrain Creek. Big Thompson River, and Poudre River Stonecat \ oiurus Jlavus SC G5, S I Fast water riffles and runs of streams with sand -gravel bottoms, often under rocks and debris Potentially — St. Vrain Creek near Longmont Suckermouth minnow Phenacobius mirabilis SI : G5, S2 Gravel and rubble riffles and runs of clear to turbid creeks and small to medium rivers Potentially — known to occur in St. Vrain Creek Insects Moss's elfin Callophrys mossii cchrvveri — G4, S2/3 Gullies, washes, and canyons in the foothills and mountains where stonecrop is present No suitable habitat SE = State Endangered Species; ST = State Threatened Species; SC = State Species of Concern. 2CNHP Ranking: GI = Critically imperiled globally, G2 = Imperiled globally, G3= Vulnerable throughout its range, G4 = Apparently secure globally, G5 = Demonstrably secure globally, SI = Critically imperiled in state, S2 = Imperiled in state, 53 = Vulnerable in state, S4 = Apparently secure in state, NI = No information. *The black -footed ferret is listed as federally endangered throughout most of its range; however, it is listed as experimental in Larimer, Weld, and Adams Counties. Since 2013, CPW has released 300 ferrets at six different sites in Larimer, Adams, Pueblo, Baca, and Prowers Counties (CPW n.d.); none of these sites occur in or near the TWP corridor and study buffer. Source: Colorado Division of Wildlife (CDOW) 2006; Colorado Natural Diversity Information Source (CNDIS) 2016; CNHP 2016; CPW 2016a, 2016b; Woodling 1985. 15 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Common Garter Snake Species Background The common garter snake (Thamnophis sirtalis) occurs only within the South Platte River drainage below 6,000 feet in northeastern Colorado (Hammerson 1999) and is listed as a state species of concern (CPW 2016a). This snake is restricted to aquatic and riparian habitats within floodplains and inhabits marshes, ponds, irrigation ditches, and stream edges in Colorado. Potential Habitat No common garter snakes were seen during the 2016 site visits. However, the entire TWP corridor and study buffer occur within the species' overall range (CNDIS 2016) (Figure 3), and the common garter snake is known to occur in riparian habitat in the drainages of Big Dry Creek, St. Vrain Creek, the Big Thompson River, the South Platte River, and the Poudre River (Hammerson 1999). Other perennial streams and ponds in the TWP corridor and study buffer provide potential habitat for this species, and this species would be expected to occur in suitable habitat. Impacts Impacts from the TWP construction activities to wetlands, open water, or floodplains to the South Platte River tributaries could adversely affect the common garter snake and temporarily disturb suitable habitat. The trenchiess construction methods proposed to eliminate impacts on wetlands and waters would minimize long-term adverse impacts on the common garter snake and its habitat, therefore the TWP would not adversely affect the overall population of common garter snake. Northern Leopard Frog Species Background The northern leopard frog (Rana pipiens) is a state species of concern (CPW 2016a) that prefers the banks and shallow portions of marshes, wet meadows, ponds, lakes, and streams, particularly where rooted aquatic vegetation is present (Hammerson 1999). Frogs prefer permanent water bodies and are a wide-ranging species known to elevations of up to 11,000 feet. Northern leopard frogs can range up to 3 miles and feed on insects, spiders, and worms. Northern leopard frog tadpoles are herbivorous scavengers (U.S. 16 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Forest Service (USFS) 1997). Worldwide and locally in Colorado. amphibian populations have declined for reasons not well known. Potential Habitat No northern leopard frogs were observed during the 2016 site visits; however, suitable habitat exists along the TWP corridor and study buffer. Impacts Construction of the TWP could adversely affect the northern leopard frog and temporarily disturb suitable habitat. Trenchless construction methods proposed to eliminate impacts on wetlands and waters would also minimize long-term adverse impacts on the northern leopard frog, therefore the TWP would not adversely affect the overall population of northern leopard frog. Black -Tailed Prairie I)og Species Background The black -tailed prairie dog (Cynomys ludovicianus) is listed as a state species of concern (CPW 2016a). Black -tailed prairie dogs are important components of the short and mesic grasslands systems. They are commonly considered a "keystone" species because their activities (burrowing and intense grazing) provide food and shelter for many other grassland species and have a large effect on community structure and ecosystem function (Power et al. 1996). Prairie dogs help provide habitat for other species by creating an environment that is inviting to other animals. Species such as burrowing owl (Athene cunicularia), prairie rattlesnake (Crotalus viridis), and mountain plover (Charadrius montanus) are closely linked to prairie dog burrow systems for food and/or cover. Prairie dogs provide an important prey resource for numerous mammalian predators including the American badger (Taxidea taxus), coyote (Canis latrans), and red fox (Vulpes vulpes); as well as bald eagle (Haliaeetus leucocephalus), golden eagle (Aquila chrysaetos), ferruginous hawk (Buteo regalis), and other raptors. Prairie dogs can contribute to overall landscape heterogeneity, affect nutrient cycling, and provide nest sites and shelter for wildlife (Whicker and Detling 1988). Prairie dogs also can denude the surface by clipping aboveground vegetation and contributing to exposed bare ground by digging up roots (Kuford 1958; Smith 1967). Typically, areas 17 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT occupied by prairie dogs have greater cover and abundance of perennial grasses and annual forbs compared with nonoccupied sites (Whicker and Detling 1988; Witmer et al. 2002). Potential Habitat During the 2016 site visits, ERO observed active black -tailed prairie dog burrows dispersed throughout the TWP corridor and study buffer (Appendix C, Photo 6). Additional prairie dog habitat was seen via aerial imaging, but without access to properties, it was not possible to determine the extent of the colonies. All observed and potential (based on aerial imaging) prairie dog colonies are shown in Figures 5.8-5.11, 5.14, 5.17, 5.18, 5.32, 5.39, 5.40, 5.42, 5.45, and 5.50-5.54. Impacts The construction limits of disturbance would be narrowed as feasible through prairie dog towns to minimize disturbance; however, construction of the TWP would temporarily affect a small portion of the prairie dog colonies in the TWP corridor. If needed, Thornton could use passive dispersal prior to and during construction. If feasible, passive dispersal would be initiated prior to the pupping season (March and April). Several standard agricultural practices, such as irrigation, tilling the soil, and planting tall crops that limit visibility, discourage prairie dogs from occupying a site. This passive dispersal protocol is a nonlethal land management activity designed to encourage prairie dogs to relocate to areas outside of the disturbance footprint and, thus, prevent any direct impact or mortality from construction activities. The passive dispersal plan is a multistep approach that is designed to begin low-level earth -disturbing activities ithin the construction footprint to encourage prairie dogs to relocate on their own volition. Heavy construction activities would then be conducted in a second phase after prairie dogs have moved out of the construction zones. Burrowing owls seasonally inhabit prairie dog colonies and prairie dog control efforts need to consider potential effects on burrowing owls (see Burrowing Owl). 18 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT River Otter Species Background The river otter (Lontra canadensis) is state threatened species that inhabits riparian habitats that traverse ecosystems ranging om semidesert shrublands to montane and subalpine forests (Armstrong et al. 2011). Otters usually live in bank dens abandoned by beavers. They are most active at dawn and dusk and feed on aquatic animals like crayfish, frogs, fish, muskrats, and beavers (CPW 2016b). In Colorado, historical records of river otters are nearly statewide, except for the southeastern part of the state. Efforts to restore otters to Colorado began in the late 1970s. Transplants were made to the Colorado, Gunnison, Piedra, and Dolores Rivers, as well as Cheesman Reservoir (Armstrong et al. 2011). Surveys suggest that reintroduced otters survived and breeding populations have been established along several rivers and reservoirs in Colorado: the Colorado River, the Piedra-San Juan River complex, the Dolores -San Miguel River drainages, and the Gunnison River (CDOW 2003). In addition, sightings have been reported from various state waters, including the Poudre and South Platte Rivers (CDOW 2003; CPW 2015a). Potential Habitat The TWP corridor and study buffer cross the Poudre River, which is included in the otter's overall Colorado range (CPW 2015a). Impacts Reported sightings of otters in the Poudre River have been increasing and construction of the TWP could temporarily displace otters; however, using trench less construction methods under the Poudre River and other streams with suitable habitat would minimize or eliminate impacts on river otters and habitat. Swift Fox Species Background The swift fox (Vulpes velox) is a state species of concern (CPW 2016a). The distribution of the swift fox includes the grasslands of the Great Plains, including eastern Colorado (Fitzgerald et al. 1994). Swift foxes are den -dependent, using dens year-round (Kilgore 1969). Typically, swift foxes have numerous dens throughout their territory, 19 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT from natal dens to dens associated with predator avoidance (Hi l i man and Sharp 1978; Tannerfeldt et al. 2003). Dens are usually located on sites dominated by native shortgrass prairie species such as blue grama and buffalograss. The swift fox is sometimes associated with prairie dog towns, although they generally excavate their own dens (Fitzgerald et al. 1994), typically along ridges or other raised topography. Coyotes prey on the swift fox and depress fox populations. Potential Habitat Although no dens were located during the 2016 site visits, much of the TWP corridor and study buffer provide suitable shortgrass prairie habitat for the swift fox. However, the TWP corridor and study buffer are on the western edge of swift fox range (CNDIS 2016) (Figure 3). Impacts Construction of the TWP would not likely adversely affect the swift fox because the TWP corridor and study buffer are on the western edge of swift fox range and much of the TWP corridor and study buffer are surrounded by urban development. Bald Eagle Species Background Although the Service removed the bald eagle from the list of threatened and endangered species in July 2007 (due to population recovery), it continues to be federally protected under the Migratory Bird Treaty Act (MBTA) and the Bald and Golden Eagle Protection Act (BGEPA). In addition, the bald eagle is listed as a state species of concern (CPW 2016a). Bald eagles are primarily winter residents in Colorado, although nesting along the Colorado Front Range has increased in recent years. Typical bald eagle nesting habitat consists of forests or wooded areas that contain tall, aged, dying, and dead trees (Martell 1992). Along the Colorado Front Range, bald eagles generally nest in trees near rivers and lakes, although individual pairs may occasionally nest in upland trees with a nearby food source (prairie dogs). Bald eagles typically seek aquatic habitat for foraging and prefer fish, although they also feed on birds, mammals, and carrion, particularly in winter (Buehler 2000; Sharps and Uresk 1990). Prairie dogs provide a major food resource for bald eagles in Colorado (Environmental Science and Engineering 1988; 20 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Kingery 1998). In the winter, bald eagles communally roost in large trees for warmth and protection (Buehler 2000). Potential Habitat There are two known bald eagle nest sites —likely one active pair with alternative nests —located near County Road 17 along St. Vrain Creek, north of Highway 66 (Figure 5.33) (CNDIS 2016). Another known nest site occurs along Stanley Ditch, south of County Road 18 (Figure 5.39). CPW recommends seasonal restrictions for human activities within a 1/2 -mile radius of active nests from October 15 through July 31. These buffers overlap the TWP corridor and study buffer (Figures 5.33, 5.34, 5.39, and 5.40). In addition, there is one known roost site within the TWP corridor and study buffer, east of County Road 1 where the TWP corridor and study buffer cross the Big Thompson River (Figure 5.22). The TWP corridor and study buffer overlap bald eagle winter concentration and forage areas at several locations (Figure 3). The rest of the TWP corridor and study buffer provide some suitable habitat for cottontail rabbits and small rodents that would provide prey for bald eagles. Prairie dogs provide potential prey, and numerous poles and structures provide perching opportunities for eagles and other raptors. Impacts Many sections of the TWP corridor and study buffer experience consistent human activity (e.g., fanning, local traffic), and construction of the TWP is unlikely to appreciably increase the level of disturbance. Thus, construction activities would not likely impact eagles, because recommended seasonal restrictions and buffers would be followed. Thornton will review the status of known eagle nests and roosts prior to construction. If any active bald eagle nests are located, Thornton would comply with CPW seasonal restrictions to surface activity within recommended buffers (1/2 mile) around active nest sites during construction, and coordinate with CPW to determine and implement any Best Management Practices (BMPs) that would minimize or eliminate impacts on active bald eagle nests. 21 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Black -Necked Stilt Species Background The black -necked stilt is ranked vulnerable in the state of Colorado by the CNHP (CNHP 2016) and is federally protected under the MBTA. In the United States, black - necked stilts are commonly found in salt ponds, flooded lowlands, or shallow lagoons. Sewage ponds, flooded pastures, and other human -maintained wetlands are particularly suitable habitat for these birds as these environments have sparse vegetation without being too overgrown. Black -necked stilts nest on the ground. They tend to build on surfaces above water, such as small islands or clumps of vegetation. Because black - necked stilts are wetland birds they are vulnerable to polluted runoff. including pesticides and selenium, and are sometimes monitored as indicators of contaminated irrigation water (Cornell Lab of Ornithology 2015). Potential Habitat Suitable habitat exists for the black -necked stilt within the TWP corridor and study buffer. In addition, this species has been known to breed in scattered locations in western and southwestern Weld County (Colorado Breeding Bird Atlas II (COBBA II) 2016). Although ERO did not observe this species within the TWP corridor and study buffer during the 2016 site visits, black -necked stilts may nest or forage in the TWP corridor and study buffer. Impacts Temporary disturbance and displacement could occur during construction activities; however, the proposed TWP would not adversely affect the black -necked stilt over the long term. Burrowing Owl Species Background The western burrowing owl (or burrowing owl) is a small migrant owl listed by the State of Colorado as a threatened species and is federally protected under the MBTA. Primary threats to the burrowing owl include habitat loss and fragmentation, anthropogenic sources of mortality such as vehicular collisions, and loss of wintering grounds, largely in Mexico (McDonald et al. 2004). In general, burrowing owls are 22 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT found in grasslands with vegetation less than 4 inches high and a relatively large proportion of bare ground (Gillihan and Hutchings 2000). In Colorado, burrowing owls are usually associated with black -tailed prairie dog colonies (Kingery 1998; Andrews and Righter 1992). More than 70 percent of sightings reported by Colorado Breeding Bird Atlasers were in prairie dog colonies (Kingery 1998). Burrowing owls usually arrive at their breeding grounds around mid -March to early April and remain until September (Haug and Oliphant 1990). Burrowing owls are present in Colorado between March 15 and October 31, with breeding from mid -April to early/mid-August (Andrews and Righter 1992; Kingery 1998). Potential Habitat The prairie dog burrows within the TWP corridor and study buffer are potential habitat for burrowing owls (Figures 5.8-5.11, 5.14, 5.17, 5.18. 5.32, 5.39, 5.40, 5.42, 5.45, and 5.50-5.54). Impacts Since prairie dog burrows are present in the TWP corridor and study buffer, burrowing owls could be directly affected by project activities. CPW recommends a buffer of 150 feet surrounding active burrowing owl nests (CDOW 2008). CPW also recommends conducting burrowing owl clearance surveys in prairie dog towns that are subject to prairie dog poisoning and/or construction projects from March 15 through October 31 (CDOW 2008). Construction occurring between November 1 and March 14 would not require clearance surveys. If burrowing owls are found within the construction footprint, individual nest burrows and a 150 -foot buffer around the burrow would be left undisturbed until the owls have moved or migrated from the site, which would be determined through monitoring (CDOW 2008). Additionally, prairie dogs could be controlled (see Black -Tailed Prairie Dog) prior to construction between November 1 and March 14 and burrows closed to discourage nesting by burrowing owls prior to construction. Thornton would follow the CPW guidelines so that impacts on nesting burrowing owls from the TWP would be minimized. THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Ferruginous Hawk Species Background The ferruginous hawk is the largest hawk in North America and is listed as a state species of concern (CPW 2016a). This species is also protected under the MBTA. This species inhabits open prairie and desert habitats, and is strongly associated with primary prey species such as ground squirrels and jackrabbits. Ferruginous hawks are relatively common winter residents in eastern Colorado, particularly in association with black - tailed prairie dogs (Preston and Beane 1996). Preferred habitat for this species consists of expansive grasslands and shrublands (Preston 1998). Conversion of native shortgrass prairie to urban development or heavily grazed rangeland has posed a significant threat to populations of this species in Colorado. Potential Habitat Ferruginous hawks are known to breed in central and eastern Weld County. In addition, this species has been known to breed in scattered locations in eastern Adams and Larimer Counties (COBBA II 2016). Although ERO did not find any active or inactive nests of ferruginous hawks within the TWP corridor and study buffer during the 2016 site visits, ferruginous hawks may occasionally forage in the TW P corridor and study buffer during migration and winter. Impacts Temporary disturbance and displacement could occur during construction activities; however, the proposed TWP would not adversely affect the ferruginous hawk over the long term. If an active ferruginous hawk nest is found prior to, or during, construction, Thornton would comply with CPW seasonal restrictions (February 1 through July 15) within recommended buffers (1/2 mile) around active nest sites during construction to minimize impacts. Long -Billed Curlew Species Background The long -billed curlew (Numenius americanus) is a state species of concern that inhabits native grassland areas in Colorado (CPW 2016a). Although some evidence indicates this species may be dependent on water to some degree, it will nest in dry areas 24 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT fairly far from large water bodies. The species is known to breed in scattered areas in northeastern Colorado, but is more common in the southeastern portion of the state (Nelson 1998). Historically the long -billed curlew ranged from Illinois to California and south to Texas (Kingery 1998). Potential Habitat The TWP corridor and study buffer contain potential habitat for the long -billed curlew. The Colorado Breeding Bird Atlas has identified breeding pairs of curlews scattered throughout grasslands in Weld County (Kingery 1998; COBBA II 2016). However, the long -billed curlew has not been recorded in the TWP corridor and study' buffer, and the Colorado Breeding Bird Atlas indicates a decrease in distribution in northern Colorado (COBBA II 2016). Impacts The proposed TWP would not likely adversely affect the long -billed curlew. Mountain Plover Species Background The mountain plover is a state species of concern that inhabits dry tablelands and the Colorado Plateau. This species nests primarily in shortgrass prairie sites used historically by prairie dogs, bison, and pronghorn. The mountain plover breeds from northern Montana, Wyoming, and Colorado to central New Mexico. The winter range of this species extends from central California to southern Arizona into northern Mexico. The mountain plover's habitat requirements generally consist of open, flat tablelands and short, intensively grazed grasslands. Typically, plovers nest in areas that maintain about 30 percent bare ground and are often found in disturbed habitats, burned prairie, fallow agricultural fields, and prairie dog colonies (Knopf and Wunder 2006). This species avoids vegetation more than 6 inches high and hillsides. Potential Habitat Mountain plovers have been recorded breeding in short -grass habitat and fallow agricultural fields throughout eastern Weld County (Kingery 1998; COBBA II 2016). Little suitable habitat for the mountain plover exists in the TWP corridor and study buffer 25 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT due to human disturbance, and there are no recent records of breeding mountain plovers in the TWP corridor and study buffer (COBBA II 2016). Impacts The proposed TWP would not likely adversely affect the mountain plover. Peregrine Falcon Species Background Currently, the peregrine falcon (Falco peregrinus anatum) is listed as a state species of concern. Peregrines nest on high, steep cliffs generally along stream courses. Peregrine falcons migrate through eastern Colorado and nest in canyons and cliffs along the Front Range. They feed almost exclusively on birds, including medium-sized birds such as jays, doves, flickers, shorebirds, and songbirds (Kingery 1998; Craig and Enderson 2004). Preferred hunting areas include cropland, meadows, river bottoms, marshes, and lakes that attract abundant bird life. Peregrines may travel up to 17 miles from nesting cliffs to hunting areas (Service 1984). Potential Habitat The TWP corridor and study buffer do not contain suitable nesting habitat for peregrine falcons. However, it is possible that peregrines forage in the area, especially near open water, drainage corridors, and other areas where waterfowl and other typical prey species are most abundant. Impacts The peregrine falcon may avoid foraging in the TWP corridor and study buffer during construction activities; however, the proposed TWP would not adversely affect the peregrine falcon over the long term and would have no impacts on nesting. Brassy Minnow Species Background The brassy minnow (Hybognathus hankinsoni), a state threatened species, is a small native fish of the Colorado plains. It inhabits pools and channels within small streams with sand to gravel substrate and aquatic vegetation. In Colorado, brassy minnows are found in low numbers in the South Platte and Republican River Basins, and in the backwaters of the Colorado River (CDOW 2006; CPW 2016c). The brassy minnow was 26 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT found in the lower St. Vrain Creek and Spottlewtiood Creek, both tributaries of the South Platte River, in 1982 (CDOT n.d.). In addition, a reproducing minnow population was reported from the Larimer and Weld Canal east of Fort Collins near Severance (Platania 1990). Potential Habitat The brassy minnow has historically been collected in St. Vrain Creek, the Poudre River, and the South Platte River and potentially occurs in the TWP corridor and study buffer, or could be potentially affected by actions in the TWP corridor and study buffer. Impacts The use of trenchless construction methods under St. Vrain Creek, the Poudre River, and other streams with suitable habitat would eliminate potential direct impacts on brassy minnows. Common Shiner Species Background The common shiner (Luxilus cornutus), a state threatened species, is a medium-sized minnow that inhabits moderate gradient streams with cool, clear water, gravel bottoms, and shaded by vegetation (CDOW 2006; Woodling 1985). In Colorado, distribution of the common shiner is localized in the South Platte River Basin, found primarily in St. Vrain Creek and the Upper South Platte River tributary system (USGS 2007), including the Big Thompson and Poudre Rivers. The common shiner feeds on aquatic insects during the summer and winter, small fish during the fall, and both plant material and small fish in the spring. This species spawns on gravel beds in flowing water, often at the head of a riffle area (CDOW 2006). The common shiner appears to be sensitive to habitat changes due to siltation events. Potential Habitat The common shiner has historically been collected in cool transitional zone streams of the South Platte River Basin, including St. Vrain Creek and the Poudre River, and potentially occurs in the TWP corridor and study buffer, or could be potentially affected by actions in the TWP corridor and study buffer. 27 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Impacts The use of trenchless construction methods under St. Vrain Creek, the Poudre River, and other streams with suitable habitat would eliminate potential direct impacts on common shiners. Iowa Darter Species Background The Iowa darter (Etheostoma exile) is a state species of concern that prefers cool, clear water over a sand or organic matter substrate (CDOW 2006; Woodling 1985). Iowa darters are native to Colorado and are found throughout the Front Range in streams and ponds (USFS n.d.). Specifically, populations are found in some plains streams in northeast Colorado, Plum Creek, and single locations on St. Vrain Creek and the Big Thompson River, as well as Eleven Mile Reservoir in South Park. Iowa darters have also been introduced to the upper Colorado River Basin (Woodling 1985). The Iowa darter eats small aquatic invertebrates and spawns in the spring to early summer in shallow water over vegetation (CDOW 2006). In Colorado, this species' abundance is relatively low and populations are likely on a downward trend. Reduction in habitat due to urban and industrial development along the Front Range continues to put Iowa darter habitat at risk. However, given the habitat requirements of the Iowa darter, this species is able to cope with environmental changes as long as development or natural disturbances do not preclude water availability (USFS n.d.). Potential Habitat The Iowa darter has historically been collected in St. Vrain Creek, the Poudre River, and the Big Thompson River and potentially occurs in the TWP corridor and study buffer, or could be potentially affected by actions in the TWP corridor and study buffer. Impacts The use of trenchless construction methods under St. Vrain Creek, the Poudre River, and streams with suitable habitat would eliminate potential direct impacts on Iowa darters. 28 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Stonecat Species Background The stonecat (Noturusflavus) is a small catfish listed as a state species of concern. Stonecats inhabit fast water riffles and runs of streams with sand -gravel bottoms, often under rocks with debris (CDOW 2006). Colorado is on the western edge of the stonecat's natural range. The species' Colorado distribution is limited to the Republican and South Platte River Basins, although its distribution in Colorado is not well known. In 1984, one specimen was collected from St. Vrain Creek near Longmont, Colorado (Woodling 1985). Platania et al. (1986) reported St. Vrain Creek specimens being collected from a variety of habitat with available cover, including undercut banks and a shallow unvegetated pool. Potential Habitat The stonecat has historically been collected in St. Vrain Creek near Longmont, Colorado and could potentially occur in the TWP corridor and study buffer, or could be potentially affected by actions in the TWP corridor and study buffer. Impacts The use of trenchless construction methods under St. Vrain Creek and other streams with suitable habitat would eliminate potential direct impacts on stonecats. Suckermouth Minnow Species Background The suckermouth minnow (Phenacobius mirabilis) is a small fish listed as endangered in the State of Colorado (CPW 2016a). This minnow inhabits riffle areas of warm prairie streams of all sizes with low to moderate currents and year-round flows. This species is more tolerant of silty waters than many other fish, but does require permanent flows. In Colorado, the suckermouth minnow is limited to the eastern plains, in portions of the mainstem South Platte River and lower mainstem and some tributaries of the Arkansas River. In addition, this species is a rare inhabitant of the Arikaree River (Woodling 1985). 29 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Potential Habitat The suckermouth minnow has historically been collected in St. Vrain Creek and could potentially occur in the TWP corridor and study buffer, or could be potentially affected by actions in the TWP corridor and study buffer. Impacts The use of trenchless construction methods under St. Vrain Creek and other streams with suitable habitat would eliminate potential direct impacts on suckermouth minnows. Raptors and Other Migratory Birds Background Raptors Raptors are protected under the MBTA (see Other Migratory Birds below). In addition, Colorado Parks and Wildlife has published recommended buffer zones and seasonal restrictions for raptors in Colorado to minimize the effects of disturbance (Colorado Division of Wildlife (CDOW) 2008). The recommended buffers are 1/3 mile for red-tailed hawks and 1/4 to 1/2 mile for other raptors, including bald and golden eagles. CPW has recommended buffers for nesting raptors as well, depending on the species (generally 1/3 or 1/4 mile) (CDOW 2008). Like bald eagles (addressed in the State Animal Species of Concern section of this report), golden eagles are also protected by the BGEPA. Golden eagles nest in a variety of habitats - most often on cliffs and occasionally in large trees. They typically forage over vast areas in search of prey that includes small rodents, rabbits, hares, and carrion, particularly in winter (Kingery 1998). Breeding bird surveys found golden eagle nesting areas over the western two-thirds of Colorado (Kingery 1998). Other Migratory Birds Migratory birds, as well as their eggs and nests, are protected under the MBTA. While destruction of a nest by itself is not prohibited under the MBTA, nest destruction that results in the unpermitted take of migratory birds or their eggs is illegal (Service 2003). The regulatory definition of a take means to pursue, hunt, shoot, wound, kill, trap, capture, or collect; or attempt to pursue, hunt, shoot, wound, kill, trap, capture, or collect (50 CFR 10.12). 30 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Under the MBTA, the Service may issue nest depredation permits, which allow a pet mittee to remove an active nest. The Service, however, issues few permits and only under specific circumstances, usually related to human health and safety. Obtaining a nest depredation permit is unlikely and involves a process that takes from four to eight weeks, at a minimum. The best way to comply with the MBTA is to remove vegetation within construction areas outside of the active breeding season, which typically falls between March and August, depending on the species. Public awareness of the MBTA has grown in recent years, and most MBTA enforcement actions are the result of a concerned member of the community reporting noncompliance. Potential Habitat Raptors Nine active raptor nests were observed during the 2016 site visits (Figures 5.4, 5.7, 5.11, 5.36, 5.41, 5.42, 5.44, 5.48. and 5.50) and four potential raptor nests were identified in or near the TWP corridor and study buffer (Table 3; Figures 5.12, 5.14, 5.33-5.35, and 5.46). In addition, a CPW raptor nest database (CPW 2015b) shows several red-tailed hawk nests located in or near the TWP corridor and study buffer in all three counties, as well as a great horned owl (Bubo virginianus) nest in the TWP corridor in Larimer County (Table 3). An active Swainson's hawk (Buteo swainsoni) nest was observed during the 2016 site visits just north of East 136th Avenue (Figure 5.48). Swainson's hawks have a 1/4 -mile distance buffer (CDOW 2008). 31 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Table 3. Raptor nest locations in or near the TWP corridor and study buffer. Raptor Nest Trpe Source Latitude Longitude Figure Number(s) Permittin g Segment* In TWP Corridor or Study Buffer Great horned owl CPW 4 TWP corridor Red-tailed hawk CPW N/A Outside of study buffer Red-tailed hawk CPW N/A Outside of study buffer Buteo spp. CPW — N/A Study buffer Red-tailed hawk ERO 40.654694 -105.022129 5.4 4 TWP corridor Red-tailed hawk CPW — N/A Study buffer — Red-tailed hawk ERO 40.653940 -104.954510 5.7. 5.8 4 TWP corridor Red-tailed hawk CPW — N/A Outside of study buffer Red-tailed hawk ERO 40.610018 -104.943148 5.11 3 TWP corridor Red-tailed hawk ERO 40.608223 -104.947907 5.11 N/A Study buffer Raptor nest ERO 40.587628 -104.945341 5.12 4 TWP corridor Red-tailed hawk CPW — N/A Study buffer — Red-tailed hawk CPW 4 TWP corridor — — Raptor nest ERO 40.548763 -104.942604 5.14 3 TWP corridor Red-tailed hawk CPW — N/A Outside of study buffer — Raptor nest CPW — N/A Study buffer — Red-tailed hawk CPW — N/A Outside of study buffer — Red-tailed hawk CPW — 2 Outside of study buffer — Red-tailed hawk CPW — 2 TWP corridor — Raptor nest ERO 40.201450 -104.907464 5.33-5.35 N/A Study buffer Red-tailed hawk ERO 40.180948 -104.904374 5.36 1 TWP corridor Red-tailed hawk ERO 40.072220 -104.901990 5.41, 4.42 N/A Study buffer Red-tailed hawk ERO 40.020284 -104.899776 5.44 N/A Outside of study buffer Raptor nest ERO 39.984856 -104.905454 5.46 N/A TWP corridor Swainson's hawk ERO 39.944016 -104.904364 5.48 N/A TWP corridor Red-tailed hawk ERO 39.910627 -104.902582 5.50 N/A Outside of stud% buffer Note: Locations of potential nests identified through the CPW raptor nest database (CPW 2015b) are not included in this report per a non -disclosure agreement with CPW to keep nest location information confidential. *1 = Weld County Permit Application l — 168th Avenue to just north of the St. Vrain River. 2 = Weld County Permit Application 2 — just north of the St. Vrain River to the southern political boundary of Windsor. 3 = Weld County Permit Application 3 — the Weld County side of County Road 13, between the southern political boundary of Windsor and the proposed tank location. 4 = Larimer County Permit Application 1 — all of Larimer County from East Larimer County Road 14/Weld County Road 50 to WSSC No. 4. N/A = not applicable — outside of TWP corridor and/or in Adams County. The short -eared owl (Asioflammeus) is likely to occur in or near the TWP corridor and study buffer, although none were observed during the 2016 site visits. Owls are strongly associated with wetland habitats near extensive grasslands, and are known to breed in Larimer, Weld, and Adams Counties (CPW 2016d). Golden eagles are known to breed in eastern Larimer County. In addition, golden eagles have been known to breed in scattered locations in Weld County (COBBA II 2016). However, no golden eagles 32 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT currently nest in or near the TWP corridor and study buffer (CPW 2015b), although individuals may occasionally forage within the TWP corridor and study buffer. Osprey are also known to breed within Larimer and Weld County (COBBA II 2016). Other Migratory Birds No migratory bird nests were observed during the 2016 site visits; however, suitable nesting habitat is present throughout the TWP corridor and study buffer for a variety of bird species. Ground -nesting and other birds could potentially nest in the grasslands and trees in and near the TWP corridor and study buffer. The cattails and other wetland/riparian vegetation along the TWP corridor and study buffer offer potential habitat for a variety of songbirds. The breeding season for most birds in Colorado is between March and August, with the exception of a few species that start in February, such as great -horned owls. Impacts Physical disturbance, displacement, and clearing of upland and wetland habitats could affect raptors and other migratory birds during construction. However, these impacts would be temporary and many habitats would generally recover quickly following construction. If feasible based on property owner operations, preferences and requirements, Thornton plans to clear vegetation within construction areas prior to the nesting season to minimize impacts on nesting birds. Thornton would review the CPW raptor nest data and perform nest surveys for raptors prior to the nesting season to identify potential active raptor nests prior to construction. Thornton will coordinate with CPW regarding any potential conflicts between scheduled construction and potential raptor nests and develop measures acceptable to CPW to minimize impacts on nesting raptors. Big Game/Large Mammals Big game wildlife species such as deer and pronghorn are considered economically important species in the State of Colorado. According to CNDIS, American pronghorn (pronghorn), black bear, mountain lion, mule deer, and white-tailed are the big game species with potential habitat in or near the TWP corridor and study buffer (Figures 6 and 33 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT 7). Summaries describing these species and their potential habitat in the TWP corridor and study buffer are provided below. American Pronghorn In Colorado, pronghorn (Antilocapra americana) are most commonly observed on the eastern plains, in the larger mountain parks and valleys, and on shrublands west of the mountains. Pronghorn generally live in grasslands and semidesert shrublands on rolling topography that provides good visibility (CPW 2016b). Pronghorn tend to favor vast expanses of open areas and are typically sensitive to human presence, including residential and commercial development and habitat loss (Sawyer and Lindzey 2000). Pronghorn overall habitat is relatively widespread throughout northeastern Colorado. Grassland areas in the northern portion of the TWP corridor and study buffer could provide suitable habitat for the pronghorn. However, pronghorns were not observed during the 2016 site visits, and the majority of the TWP corridor and study buffer do not occur within overall pronghorn range in Colorado (CPW 2016b). Pronghorn concentration areas occur where animal densities are at least 200 percent greater than the surrounding overall range during a season other than winter. The far north end of the TWP corridor and study buffer overlaps a very small portion of a pronghorn concentration area (Figure 6). Although individual pronghorn could wander in or near the northern tip of the TWP corridor and study buffer, the TWP would not impede pronghorn movement or present a physical barrier. During construction, wildlife crossovers (trench plugs) with ramps on each side of the trench could be installed at well- defined game trails. Therefore, the TWP would not likely impact pronghorn. Black Bear In Colorado, black bears (Ursus americanus) most commonly occupy areas with Gambel oak (Quercus gambelii) and aspen (Populus tremuloides) near open areas of chokecherry (Prunus virginiana) and serviceberry (Amelanchier spp.) bushes. Black bears can have a range from 10 to 250 square miles (CPW 2016b). Most bears are active in Colorado from mid -March through early November. They head for winter dens when food sources dwindle. More than 90 percent of a bear's natural diet is grasses, berries, fruits. nuts, and plants (CPW 2012). 34 THORNTON WATER PROJECT NATURAL AND CULTURAL. RESOURCES ASSESSMENT The TWP borders black bear overall range in Colorado and the far northwestern edge of the TWP corridor and study buffer overlap a black bear -human conflict area (CPW 2016b) (Figure 6). In general. the TWP corridor and study buffer do not contain preferred bear habitat and, north of Denver, black bear overall range occurs on the west side of 1-25, which itself serves as a physical barrier. Therefore, while individuals could wander in or near the TWP corridor and study buffer. it is unlikely the TWP would impact black bears. Mountain Lion In Colorado, mountain lions (Fells concolor) are most abundant in foothills, canyons, or mesa country, in areas of pinyon pine (Pinus edulis), juniper (Juniperus spp.), mountain mahogany (Cercocarpus spp.), ponderosa pine (Pinus ponderosa), and Gambel oak (CDOW 2009; CPW 2016b). They prefer brushy areas and woodlands over forests or open prairies (CPW 2016b). Mountain lions are generally most abundant in areas with ample deer populations. Individual lions range in areas varying in size from 10 to 370 square miles. The size of the home range depends on the terrain and how much food is available (CDOW 2009). The majority of western Colorado is considered mountain lion overall range (CPW 2016b). The northwestern arm of the TWP corridor and study buffer within I.arimer County Permit Application 1 overlaps overall mountain lion range and a mountain lion -human conflict area (CPW 2016b) (Figure 6). However, the majority of this area is characterized by nonnative upland vegetation and agricultural land, which is not preferred mountain lion habitat. Therefore. while individuals could wander in or near the TWP corridor and study buffer. it is unlikely the TWP would impact mountain lions. Mule Deer in Colorado, mule deer (Odocoileus hemionus) occupy all ecosystems from grasslands to alpine tundra. Mule deer generally migrate seasonally, spending summer months at higher altitudes and moving to lower elevations during winter. Mule deer primarily are browsers, feeding mostly on shrubs. although forbs and grasses make up a significant portion of the mule deer diet. especially in spring and summer. This species reaches its greatest densities in shrublands that provide abundant forage and cover. Mule 35 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT deer breed from November through December with fawning occurring in May and June (Fitzgerald et al. 1994). Mule deer habitat is fragmented in areas with high levels of urban development, grazing, and agriculture. Mule deer are widespread throughout northeastern Colorado. Mule deer winter range, where 90 percent of the individuals are located during the average 5 winters out of 10, and severe winter range, where 90 percent of the individuals are located when the annual snowpack is at its maximum and/or temperatures are at a minimum in the 2 worst winters out of 10, occur within the TWP corridor and study buffer at several locations (Figure 7). A mule deer concentration area (densities are at least 200 percent greater than the surrounding winter range density) occurs in the far northern portion of the TWP corridor and study buffer (Weld County Permit Application 3 and Larimer County Permit Application 1). Only one migration corridor overlaps the TWP corridor and study buffer, where the TWP area crosses St. Vrain Creek; this area is also a known resident population area (Figure 7). The TWP could temporarily impede movement of individual deer and result in the displacement of some individuals during construction activities. During construction, wildlife crossovers (trench plugs) with ramps on each side of the trench could be installed at well-defined game trails. The water pipeline would not provide a substantial barrier to deer movement over the long term because the water pipeline would be buried. In addition, habitat is fragmented in areas of urban and suburban development. Mule deer typically adapt to development and should not be substantially impacted by the TWP. White-tailed Deer In Colorado, the white-tailed deer is less widespread and more secretive than mule deer. Like mule deer, white-tailed deer also occupy shrublands that provide plentiful forage and cover; however, white-tailed deer are most often seen in riparian areas bordering larger streams and rivers. Although this species does not migrate in large numbers like elk, white-tailed deer will move seasonally up and down river corridors in small numbers (Fitzgerald et al. 1994). Similar to mule deer, the white-tailed deer is also common throughout northeastern Colorado, especially along riparian corridors (Fitzgerald et al. 1994). The TWP corridor 36 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT and study buffer cross white-tailed deer concentration areas and winter range at several locations (Figure 7). White-tailed deer concentration areas are considered critical habitat for white-tailed deer and occur in corridors of riparian habitat that support higher populations of white-tailed deer or serve as travel corridors. The CPW does not designate winter or summer concentration areas or severe winter range for white-tailed deer. The TWP could temporarily impede movement of individual deer and result in the displacement of some individuals during construction activities. During construction, wildlife crossovers (trench plugs) with ramps on each side of the trench could be installed at well-defined game trails. The water pipeline would not provide a substantial barrier to deer movement over the long term because the water pipeline would be buried. In addition, white-tailed deer habitat is fragmented in areas with high levels of urban and suburban development. While the TWP would result in short-term impacts on white- tailed deer, long-term effects are not expected. Other Game and Nongame Species Areas v ithin the proposed TWP corridor and study buffer provide potential habitat for other animals including coyotes (Canis latrans), red foxes (Vulpes vulpes), and raccoons (Procyon lotor). Smaller animals such as cottontail rabbits (Sylvilagus sp.), deer mice (Peromyscus maniculatus), prairie voles (Microtus pennsylvanicus), plains pocket gophers (Geomys bursarius), and ground squirrels (Ictidomys tridecemlineatus; Xerospermophilus spilosoma) may also use the habitat within the TWP corridor and study buffer (Armstrong et al. 2011). Bull snakes (Pituophis catenifer), western terrestrial garter snakes (Thamnophis elegans), and other eastern plains reptiles may occur within the TWP corridor and study buffer. The plains spadefoot (Spea bombifrons) and Woodhouse's toad (Anaxyrus woodhousiz) likely occur within the TWP corridor and study buffer, especially near permanent water sources. The Great Plains toad (Anaxyrus cognatus) occurs throughout Weld County and may occur in the TWP corridor and study buffer. None of these species were observed during the 2016 site visits. The TWP could displace some individuals during construction, but would not have a significant long-term negative impact on these animals because these species are common and widespread throughout Larimer, Weld, and Adams Counties. 37 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT The TWP corridor and study buffer occur within wild turkey (Meleagris gallopavo) winter range and a production area where the TWP corridor and study buffer cross St. Vrain Creek in Larimer and Weld Counties (Figure 6). In addition, this species has been known to breed in scattered locations in Larimer County and southwestern Weld County (COBBA II 2016). Although ERO did not observe this species within the TWP corridor and study buffer during the 2016 site visits, wild turkeys may occur in or near the TWP corridor and study buffer. The TWP could disrupt and displace individuals during construction activities; however, the TWP would not adversely impact wild turkeys or wild turkey habitat over the long term. Aquatic Species and Habitat Several perennial, intermittent, and ephemeral streams, lakes and ponds, wetlands, ditches, and canals occur within the TWP corridor and study buffer. These water bodies provide habitat for aquatic invertebrates that play an important role in the food chain to support larger species including mammals and birds. Many of these areas would not be impacted because the jurisdictional waters and wetlands would be crossed using trenchless construction methods. Any impacts on aquatic habitat would be temporary and there would be no long-term effect on aquatic species or aquatic habitat. Terrestrial and Aquatic Plant Life Information on terrestrial and aquatic animals was obtained from various sources including the CPW, CNHP, Service, published literature, and field surveys. Vegetation Camrmunities Description Based on the 2016 site visits and Google Earth imagery, ERO has identified six broad vegetation communities within the TWP corridor and study buffer: Mixed Upland, Nonnative Upland, Riparian, wetlands, agricultural lands, and developed/disturbed areas. These communities are described below and are shown in Figures 4.1-4.55. Mixed Upland The Mixed Upland community occurs primarily in historically undisturbed uplands in the TWP corridor and study buffer. Kentucky bluegrass (Poapratensis) and western 38 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT wheatgrass (Pascopyrum smithii) dominate this community. Other common species include needle-and-threadgrass (Hesperostipa comata), fringed sage (Artemesia frigida), switchgrass (Panicum virgatum), and foxtail barley (Hordeumjubatum). Some three -leaf sumac (Rhus trilobata), soapweed yucca (Yucca glauca), rubber rabbitbrush (Ericamerica nauseosa), and other shrubs are scattered throughout this community. Noxious weeds such as cheatgrass (Bromus tectorum) and field bindweed (Convolvulus arvensis) also occur within this vegetation community type. Mixed Uplands in the TWP corridor and study buffer are of moderate quality because they have been grazed in the past and contain some weeds. The Mixed Upland community occurs in three separate sections of the TWP corridor and study buffer —one in the southern section along an unnamed drainage, one adjacent to the north and south of the Big Thompson River (Appendix C, Photo 7), and one surrounded by agricultural land just north of the Cactus l 1 i l l Lateral. Nonnative Upland The Nonnative Upland community occurs throughout the TWP corridor and study buffer and includes areas that have been historically disturbed by heavy grazing, tilling, and hay production. In many cases, introduced species and pasture grasses dominate the community. The Nonnative Upland community is dominated by species such as smooth brome (Bromus inermis), Japanese brome (Bromus japonicus), crested wheatgrass (Agropyron cristatum), and kochia (Bassia scoparia), which predominantly occur along roadsides and other disturbed areas throughout the TWP corridor and study buffer (Appendix C, Photos 1 and 8). Noxious weed species such as diffuse knapweed (Centaurea diffusa) and cheatgrass also occur within this vegetation community type. Riparian The Riparian community includes moist areas along the larger tributaries and rivers in the TWP corridor and study buffer (Appendix C, Photo 2). Some areas mapped remotely as riparian may include potential wetlands as well (see Wetlands discussion below). Depending on the site, plains cottonwood (Populus deltoides), crack willow (Salix fragilis), and peachleaf willow (Salix amygdaloides) form the overstory with a shrub layer of chokecherry, American plum (Prunus americana), western snowberry 39 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT (Symphoricarpos occidentalis), Woods' rose (Rosa woodsii), and sandbar willow (Salix exigua). The noxious weed tree, Russian olive (Elaeagnus angustifolia), is common in this cover type. Smooth brome and Kentucky bluegrass dominate the understory. Wetlands Wetlands occur along several of the potential waters of the U.S. identified in the Wetlands and Waters of the U.S section of this report (Appendix C, Photo 4). Wetlands occur as fringes or wide benches along drainages, roadside swales, ponds and lakes, and as isolated depressions. Many of the potential wetlands along the perennial streams are abutted by riparian vegetation. Vegetation within the wetlands is dominated by plains cottonwood (Populus deltoides), sandbar willow, narrowleaf cattail (Typha angustifolia), broadleaf cattail (Typha latifolia), Baltic rush (Juncus arcticus), Nebraska sedge (Carex nebrascensis), and reed canarygrass (Phalaris arundianacea). Agricultural Lands Tilled and/or managed agricultural lands are common throughout the TWP corridor and study buffer (Appendix C, Photo 9). Agricultural lands are characterized by crops such as alfalfa, corn, small grains, and soy, as sticll as fallow ground and disturbed areas associated with agriculture. Developed/Disturbed Areas Developed/disturbed areas occur throughout the TWP corridor and study buffer (Appendix C, Photo 10). Developed/disturbed areas have received heavy human use, including livestock concentration areas; buildings and surrounding disturbed areas; and roads, trails, and other developed areas. Developed/disturbed areas in the TWP corridor and study buffer are either bare or dominated by annual and noxious weed species such as kochia, cheatgrass, curly dock (Rumex crispus), biennial thistles, and diffuse knapweed. Impacts Table 4 lists the total acreages of each community within the TWP corridor and study buffer. Construction of the TWP would require a 90 -foot -wide work limit (50 -foot wide permanent easement and 40 -foot wide temporary easement). The majority of the impacts on vegetation would be temporary. Permanent impacts would occur from construction of 40 TITORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT the pump stations and tank sites. All temporarily disturbed areas would be returned to preconstruction grades and seeded with native vegetation, or as reasonably specified by property owner, once construction is complete. Because most of the impacts on vegetation would be temporary, there would be no long-term adverse effects on vegetation. Table 4. Total acreages of vegetation communities within the TWP corridor and stud• buffer by county. Vegetation Community Total Acres in TWP Corridor Total Acres in Study Buffer Total Larimer Weld Adams Larimer Weld Adams Mixed Upland 54.41 84.88 0 43.29 51.15 0 233.73 Nonnative Upland 936.14 1,129.54 521.07 670.56 892.02 365.34 4,514.67 Riparian 7.47 20.49 0 6.25 32.65 0 66.86 Wetlands 42.95 68.40 12.57 28.03 31.17 15.80 198.92 Agricultural lands 1,305.38 3,379.92 355.97 1,068.13 2,928.95 278.49 9,316.84 Developed/disturbed areas 1,054.98 1,185.60 1,083.69 720.87 590.49 818.92 5,454.55 total 3,401.33 5,868.83 1,973.30 2,537.13 4,526.43 1,478.55 19,78537 Federal Threatened, Endangered, and Candidate Plant Species Four plant species listed as threatened or endangered have potential to occur in Larimer, Weld, and Adams Counties or be affected by projects occurring in Larimer, Weld, and Adams Counties (Table 5). The TWP corridor and study buffer were assessed for suitable habitat for these four species. Only species with suitable habitat present within the TWP corridor and study buffer are described in further detail below Table 5. 41 THORNTON WATER PROJECT NA"1URAL. AND CULTURAL RESOURCES ASSESSMENT Table 5. Federally threatened, endangered, and candidate plant species potentially found in Larimer, Weld, and Adams Counties or potentially affected by projects in Larimer, Weld, and Adams Counties. Common Name Scientific Name Status' County Habitat Suitable Habitat Present Colorado butterfly plant Gaura neomexicana ssp. coloradensis FT Larimer, Weld Subirrigated, alluvial soils on level floodplains and drainage bottoms between 5,000 and 6,400 feet in elevation Yes — TWP corridor and study buffer North Park phacelia Phacelia formosula FE Larimer Found in North Park, Colorado between 8,000 and 8,300 feet in elevation; limited to eroded soil outcrops consisting of barren exposures of the Coalmont Formation No Ute ladies' -tresses orchid Spiranthes diluvialis Larimer, Weld, Adams Moist to wet alluvial meadows, floodplains of perennial streams, and around springs and lakes below 6,500 feet in elevation Yes - TWP corridor and study butler FT Western prairie fringed orchid" Platanthera praeclara FT — Moist to wet prairies and meadows No - see Platte River species section above "FE = Federally Endangered Species; FT = Federally Threatened Species. "Water depletions in the South Platte River may affect the species and/or critical habitat in downstream reaches in other counties or states. Source: Service 2016. Colorado Butterfly Plant Species Background The Colorado butterfly plant (Gaura neomexicana ssp. coloradensis) (CBP) is a short-lived perennial herb found in moist areas of floodplains. It occurs on subirrigated alluvial soils on level or slightly sloping floodplains and drainage bottoms at elevations from 5,000 to 6,400 feet. Colonies are often found in low depressions or along bends in wide, active, meandering stream channels that are periodically disturbed. Historically, the main cause of disturbance was probably flooding (Service 2004). The CBP flowers from June to September and produces fruit from July to October (Spackman et al. 1997). This species is federally listed as threatened under the ESA and is found within a small area in southeastern Wyoming, western Nebraska, and north -central Colorado (NatureServe 2015). 42 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Potential Habitat ERO reviewed the TWP corridor and study buffer for potential CBI) habitat. The TWP corridor and study buffer do not cross any designated critical habitat for CBP and most of the TWP corridor and study buffer were eliminated as potential habitat because it is not within an active floodplain. Of the drainage crossings within the TWP corridor and study buffer, ERO identified the Poudre River, St. Vrain Creek, and the Big Thompson River as potential CBP habitat (Appendix C, Photo 11) (Table 6). The other drainages in the TWP corridor and study buffer do not contain suitable CBP habitat because of their topography or lack of wetland vegetation. Impacts No impacts on CBP would occur from the TWP. A site assessment would be completed along the above drainages to determine the boundaries of potential CBP habitat. Trenchless construction methods anticipated to be used in the construction of the TWP would eliminate impacting drainages that are considered jurisdictional wetlands and waters of the U.S. and/or contain potential habitat for CBP. A habitat assessment would be submitted to the Service prior to construction to confirm the TWP would have no effect on CBP. Ute Ladies' -Tresses Orchid Species Background Ute ladies' -tresses orchid (Spiranthes diluvialis) (ULTO) is federally listed as threatened. This species occurs at elevations below 6,500 feet in moist to wet alluvial meadows, floodplains of perennial streams, and around springs and lakes where the soil is seasonally saturated within 18 inches of the surface. Generally, the species occurs where the vegetative cover is relatively open and not overly dense or overgrazed. Once thought to be fairly common in low -elevation riparian areas in the interior western United States, ULTO is now considered rare (Service 1992a). In Colorado, the Service requires surveys in areas of suitable habitat on the 100 -year floodplain of the South Platte River, Fountain Creek, and Yampa River, and their perennial tributaries; or in any area with suitable habitat in Boulder and Jefferson Counties (Service 1992b). ULTO does not bloom until late July to early September 43 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT (depending on the year), and the timing of surveys must be synchronized with blooming (Service 1992b). Potential Habitat Because the TWP corridor and study buffer fall within survey guidelines for ULTO, ERO assessed the TWP corridor and study buffer for potential ULTO habitat. Big Dry Creek, Little Dry Creek, Todd Creek, St. Vrain Creek, the Little Thompson River, the Big Thompson River, Box Elder Creek, Grange Hall Creek, and the Poudre River fall within ULTO survey guidelines as potential habitat because they are perennial tributaries to the South Platte River in Larimer, Adams, and Weld Counties. In addition, the Larimer and Weld Canal falls within survey guidelines as potential habitat because ULTO is known to occur along perennial ditches in Larimer County. The potential wetlands abutting or adjacent to St. Vrain Creek, the Big Thompson River, and the Poudre River are potential suitable ULTO habitat (Appendix C, Photo 1 1). Wetlands along Box Elder Creek, Todd Creek, Grange Hall Creek, Little Dry Creek, and the Little Thompson River are too densely vegetated to allow the establishment of the generally shade -intolerant ULTO. Big Dry Creek and the Larimer and Weld Canal are incised channels with no wetland or wet meadow habitat suitable for ULTO. The remaining potential wetlands in the TWP corridor and study buffer do not fall within ULTO survey guidelines because they do not occur along perennial drainages. In addition, a majority of the wetlands in the TWP corridor and study buffer do not contain the sparsely vegetated pockets of species such as redtop (Agrostis stolonifera) or Baltic rush where ULTO is typically found; most of the wetlands contain dense cattails, sandbar willows, or reed canarygrass. Table 6 lists drainages in the TWP corridor and study buffer that fall within survey guidelines as potential ULTO habitat. Impacts No impacts on ULTO would occur from the TWP. A site assessment would be completed along the above drainages to determine the boundaries of potential ULTO habitat. Trenchless construction methods anticipated to be used in the construction of the TWP would eliminate impacting drainages that are considered jurisdictional wetlands and waters of the U.S. and/or contain potential habitat for ULTO. A habitat assessment 44 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT would be submitted to the Service prior to construction to confirm the TWP would have no effect on ULTO. Table 6. Waters in the TWP corridor and study buffer with potential habitat for CBP and ULTO. Drainage Name Figure \umber(s) County / Permitting Segmentx Latitude Longitude Suitable Habitat Present Todd Creek 4.47 Adams / N/A 39.9708 -104.9032 No Grange Hall Creek 4.53-4.55 Adams / N/A 39.8940 -104.9498 No Big Dry Creek 4.45 Weld / 1 40.0164 -104.9048 No Little Dry Creek 4.42 Weld / 1 40.0684 -104.9049 No St. Vrain Creek 4.33, 4.34 Weld / 1 40.2044 -104.9072 CBP, ULTO Little Thompson River 4.26, 4.27 Weld / 2 40.3133 -104.9325 No Big Thompson River 4.22, 4.23 Weld & Larimer / 2 & 4 40.3825 -104.9449 CBP, ULTO Cache la Poudre River 4.18 Weld & Larimer / 3 & 4 40.4734 -104.9443 CBP, ULTO I arimer and Weld Canal 4.13 Weld & Larimer / 3 & 4 40.5665 -104.9442 No Box Elder Creek 4.6 I .arimer , 1 40.6535 -104.9813 No * 1 = Weld County Permit Application 1 — 168th Avenue to just north of the St. Vrain River. 2 = Weld County Permit Application 2 — just north of the St. Vrain River to the southern political boundary of Windsor. 3 = Weld County Permit Application 3 — the Weld County side of County Road 13, between the southern political boundary of Windsor and the proposed tank location. 4 = Larimer County Permit Application 1 — all of Larimer County from East Larimer County Road 14/Weld Count) Road 50 to WSSC No. 4. N/A = not applicable — outside of TWP corridor and/or in Adams County. Rare and Sensitive Plant Species Description The CNHP maintains a list of plant species considered rare or imperiled in Colorado by county. These species are not formally protected but are considered rare or imperiled by the CNHP. Rare or imperiled plant species potentially found in Larimer. Weld, and Adams Counties with potentially suitable habitat in the TWP corridor and study buffer are summarized in Table 7. Table 7. Plant species considered rare or imperiled by the CNHP that potentially occur in the TWP corridor and study buffer. ( ommon Name Scientific Name Ranking* Habitat Suitable Habitat Present Colorado watercress Rorippa coloradensis GH/SH Historically known from margins of rivers and lakes No Dwarf milkweed Asclepias uncialis ssp. uncialis G3G4/S2 Shortgrass prairie No *CNI IP Ranking: GI • Critically imperiled globally, G2 = Imperiled globally, G3= Vulnerable throughout its range, G4 = Apparently secure globally, G5 = Demonstrably secure globally, GH = Historical, SI = Critically imperiled in 45 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT state, S2 = Imperiled in state. S3 = Vulnerable in state, S4 = Apparently secure in state. SI I = Historical, NI = No information Source: CNHP 2016. Two species Colorado watercress and dwarf milkweed have limited potential to occur in the TWP corridor and study buffer. Colorado watercress was last observed in Weld County, near the TWP corridor and study buffer, in 1895, and this species has likely been extirpated in Colorado (CNHP 2016; NatureServe 2016). Dwarf milkweed was last observed in Weld County, near the TWP corridor and study buffer, in 1896 and the range of dwarf milkweed has greatly contracted since the 1800s (CNHP 2016; Decker 2006). The known extant occurrences of dwarf m i I kweed occur in drainages tributary to the South Platte River, Arkansas River, and Rio Grande (CNHP 2016; Decker 2006). This species is found in high -quality shortgrass prairie and is not likely to persist within the mixed and nonnative grasslands found in the TWP corridor and study buffer. Impacts No impacts on rare or imperiled plant species would occur from the TWP because suitable habitat is not present in the TWP corridor and study buffer. Areas of Historic or Archaeological Importance ERO conducted a file search and literature review of the entire proposed TWP corridor and study buffer with the Office of Archaeology and Historic Preservation. The Class I review indicates that very little of the TWP corridor and study buffer have been previously surveyed and that the TWP corridor and study buffer intersects the boundaries of 249 historical cultural resources, most of which have not been previously documented or evaluated for eligibility to be listed on the National Register of Historic Places or State Register of Historic Preservation. Description The file search identified 35 previously conducted cultural resource surveys in the TWP corridor and study buffer (Appendix B, Table B -I). The file search results indicate that less than 5 percent of the TWP corridor and study buffer has been previously surveyed. The file search identified 60 previously documented cultural resources in the TWP corridor and study buffer (Appendix B, Table B-2; Figures 8.1-8.23). All of the 46 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT previously recorded resources are historical (i.e., no prehistoric archaeological sites have been previously documented in the TWP corridor or study buffer). The majority of resources are irrigation ditch and railroad segments significant because of their association with the early settlement and development of agriculture on the Front Range. In addition to a file search with the OAHP, ERO reviewed existing literature, including historical maps, tax assessor records, and the Colorado Water Conservation Board's Colorado Decision Support Systems to determine whether unevaluated cultural resources are located in the TWP corridor and study buffer. This review identified all properties within the TWP corridor and study buffer that may contain cultural resources 45 years old or older (i.e., constructed prior to 1972) (Appendix B, Table B-3). The majority of these resources are historical rural or agricultural properties and irrigation - related landscape features. Impads Current TWP designs indicate that the TWP has little or no potential to result in any adverse effects to sites, structures, or buildings that are currently eligible, needs data, or listed on the State or National Register of Historic Places. Known impacts on cultural resources are limited to the "needs data" site SLR10767, an earthen water conveyance that includes a ditch, outlet structures and reservoir embankment. Construction activities would include impacts on the south reservoir embankments to tie the proposed water pipeline into existing pipelines located within the embankment. The TWP would not result in any permanent changes to the location, design, materials, setting, or association of 5LR 10767. The water pipeline would use trenchless construction methods to minimize or eliminate physical impacts to any eligible or potentially eligible linear resources, such as irrigation ditches. If feasible, the water pipeline would be routed around all other cultural resources to eliminate impacts on those resources. Consultation with the State Historic Preservation Officer on project effects is only necessary when a federal action is required or state funds are involved. Because no federal action or state funding is anticipated, Thornton does not anticipate consulting with the State Historic Preservation Officer on the TWP's potential impacts to cultural resources. 47 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Monitoring and Mitigation Plan Extensive monitoring and mitigation measures will be employed during the construction and operation phases of the TWP. Construction mitigation measures include, but are not limited to: Open Waters, Wetlands, and Riparian Areas • A site -specific Stormwater Management Plan and Erosion and Sediment Control Plan will be developed. • The areas of construction will be accessed using existing roads to the maximum extent possible. Any temporary access roads will be removed upon completion of the TWP and the area restored to preconstruction conditions. • Design efforts will include criteria so that there will be no impacts on waters of the U.S. and impacts on other aquatic resources will be minimized to the maximum extent possible. • During construction, open cut trench will be as narrow as safely practicable when crossing nonjurisdictional waters and wetlands. All jurisdictional waters of the U.S. will be crossed using trenchless construction methods. • All temporary impacts will be returned to pre -project conditions following completion of the proposed activities. • BMPs will be implemented during construction, which will help minimize impacts in the TWP corridor and study buffer. These BMPs could include installing temporary fencing to deter access to sensitive areas, placing staging areas in previously disturbed upland areas, and installing sediment- and erosion - control devices to minimize surface runoff in disturbed areas. • Topsoil will be salvaged and used on disturbed areas that would be revegetated where practicable. • All temporarily disturbed areas will be planted with native seed mixes or as reasonably specified by property owner, and mulched. Terrestrial and Aquatic Animals and Habitat • The TWP will have no effect on any federally listed threatened, endangered, or candidate wildlife species. A site assessment will be completed to determine the boundaries of potential or suitable habitat for federally listed threatened, endangered, or candidate wildlife species to confirm construction would not occur in those areas. A habitat assessment will be submitted to the Service prior to construction to confirm the TWP would have no effect on Preble's or other federally listed wildlife species. • Should construction occur between February and August, a preconstruction nesting bird survey will be conducted by a biologist prior to any clearing or tree removal. Where feasible, Thornton plans to clear vegetation within construction areas prior to the nesting season to minimize impacts on nesting birds. Thornton will review the CPW raptor nest data and perform nest surveys for raptors prior to 48 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT the nesting season to identify potential active raptor nests prior to construction. Thornton will coordinate with CPW regarding any potential conflicts between scheduled construction and potential raptor nests and develop measures acceptable to CPW to minimize impacts on nesting raptors. • Where feasible, in areas where construction is scheduled to occur in prairie dog colonies during times when they may be occupied by burrowing owls, prairie dogs will be controlled prior to construction between November 1 and March 14 and burrows closed to discourage nesting by burrowing owls prior to construction. Thornton will follow the CPW guidelines so that impacts on nesting burrowing owls from the TWP will be minimized. Terrestrial and Aquatic Plant Life • The TWP will have no effect on any federally listed threatened, endangered, or candidate plant species. A site assessment would be completed in potential habitat areas to determine the boundaries of potential habitat for CBP and ULTO. Trenchless construction methods anticipated to be used in the construction of the TWP would eliminate impacting drainages that are considered jurisdictional wetlands and waters of the U.S. and/or contain potential habitat for CBP or ULTO. A habitat assessment will be submitted to the Service prior to construction to confirm the TWP would have no effect on CBP or ULTO. • All temporary impacts will be returned to pre -project conditions following completion of the proposed activities. • BMPs will be implemented during construction, which will help minimize impacts in the TWP corridor and study buffer. These BMPs could include installing temporary fencing to deter access to sensitive areas outside the TWP corridor limits, placing staging areas in previously disturbed upland areas, and installing sediment- and erosion -control devices to minimize surface runoff in disturbed areas. • All temporarily disturbed areas will be planted with native seed mixes or as reasonably specified by property owner, and mulched. • Topsoil will be salvaged and used on disturbed areas that would be revegetated where practicable. Noxious Weed Management Several noxious weed species were observed in the TWP corridor and study buffer during 2016 site visits, including cheatgrass, curly dock, diffuse knapweed, field bindweed, and Russian olive. Noxious weeds within the TWP construction limits will be controlled using the following Integrated Pest Management (IPM) methods as described by the Colorado Department of Agriculture (CDOA). The following methods have been developed to control noxious weeds in a manner that prevents harm to human health and 49 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT to environmentally sensitive areas such as waterways and desirable vegetation including native trees. • Major equipment (e.g., truck equipment and backhoes) will be cleaned by high- pressure air or water spray before being delivered to the TWP area to avoid introducing undesirable plants and noxious weeds. • If practicable, topsoil should not be salvaged in any area densely infested with noxious weeds. • For areas where removal is not practicable or only a small area of noxious weeds is present, pre -treat all noxious weed populations in the topsoil. • Fertilizer or other soil amendments will not be used unless recommended by a revegetation specialist based on site -specific conditions. The use of fertilizers will be restricted because they can promote noxious weeds and can be detrimental to native species in the revegetation mix. • After construction is complete, all disturbed areas will be properly revegetated as quickly as possible. Prompt revegetation with appropriate species is essential for preventing the spread of noxious weeds. • Certified weed -free seed and mulch will be used for revegetation. Weed -free straw bales will be used for sediment barriers. • If stands of noxious weeds become established, weed control would be implemented following an integrated approach specific to the weed species present. • Because new control methods are continually being developed, particularly for herbicide applications, any control methods used will follow the CDOA and Larimer County recommendations at the time of implementation. Areas of Historic or Archaeological Importance • The TWP will not adversely affect any sites or structures listed on the State or National Register of Historic Places. References Andrews, R. and R. Righter. 1992. Colorado Birds. Denver Museum of Natural History. Denver. Armstrong, D.M., J.P. Fitzgerald, and C.A. Meaney. 2011. Mammals of Colorado. Second Edition. Denver Museum of Nature & Science and University Press of Colorado. Boulder, CO. Buehler, D.A. 2000. Bald Eagle (Haliaeetus leucocephalus). In The Birds of North America, No. 506 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA. Colorado Breeding Bird Atlas II (COBBA II). 2016. Breeding bird survey results. Available at: http://www.cobreedingbirdatlasii.org/. Last accessed: July 25, 2016. 50 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Colorado Department of Transportation (CDOT). n.d. Brassy Minnow. Available at: https://www.codot.gov/programs/environmental/resources/environmental- cards/wildlife/03-0303-I I.pdf. Last accessed: July 24, 2016. Colorado Division of Wildlife (CDOW). 2003. State of Colorado River Otter Recovery Plan. Available at: https://cpw.state.co.us/Documents/WildlifeSpecies/SpeciesOfConcern/RecoveryPlans/ CDOW2003Riverotterrecoveryplan.pdf. June. Colorado Division of Wildlife (CDOW). 2006. Pocket Guide to Native Fish of Colorado's Eastern Plains. May. Colorado Division of Wildlife (CDOW). 2008. Recommended buffer zones and seasonal restrictions for Colorado Raptor Nests. February. Colorado Division of Wildlife (CDOW). 2009. Living with Lions. March 2009. Available at: http://cpw.state.co.us/Documents/Education/Living With Wildlife/LivingWithLions.pdf. Last accessed: October 2, 2016. Colorado Natural Diversity Information Source (CNDIS). 2016. GIS Habitat Coverage. Available at: http://cpw.state.co.us/learn/Pages/Maps.aspx/. Accessed August 5, 2016. Last updated: February 22, 2016. Colorado Natural Heritage Program (CNHP). 2016. Locations and Status of Rare and/or Imperiled Species and Natural Communities known from or likely to occur within the ERO Corridor of Interest in Adams, Larimer and Weld Counties, Colorado. Report generated October 3, 2016. Colorado State University. Colorado Natural Heritage Program. Colorado Parks and Wildlife (CPW). n.d. Black -footed Ferret. Available at: http://cpw.state.co.us/learn/Pages/Conservation-Ferret.aspx. Last accessed: October 5, 2016. Colorado Parks and Wildlife (CPW). 2012. Living with Bears. March 2012. Available at: http://cpw.state.co.us/Documents/Education/LivingWithWildlife/LivingWithBears.pdf. Last accessed: October 2, 2016. Colorado Parks and Wildlife (CPW). 2015a. River Otter Overall Range. Available at: http://cpw.state.co.us/learn/Maps/River_Otter_Overal l_Range.pdf. Colorado Parks and Wildlife (CPW). 2015b. Raptor Nest Database provided to ERO Resources Corporation under Non -disclosure Agreement to keep nest location information confidential. Colorado Parks and Wildlife (CPW). 2016a. Colorado listing of endangered, threatened and wildlife species of special concern. Available at: http://cpw.state.co.us/learn/Pages/SOC-Threatened EndangeredList.aspx. Colorado Parks and Wildlife (CPW). 2016b. Species Profiles. Available at: http://cpw.state.co.us/learn/Pages/SpeciesProfiles.aspx. 51 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Colorado Parks and Wildlife (CPW). 2016c. Brassy Minnow — Factsheet and Habitat Scorecard. Available at: https://cpw.state.co.us/Documents/LandWater/Wetlands Program/PrioritySpecies/Facts heet-and-Habitat-Scorecard_BrassyMinnow.pdf. Last accessed: July 24, 2016. Colorado Parks and Wildlife (CPW). 2016d. Short -eared Owl — Factsheet and Habitat Scorecard. Available at: https://cpw.state.co.us/Documents/Land Water/WetlandsProgram/PrioritySpecies/Facts heet-and-Habitat-Scorecard_ShortEared%20Owl.pdf. Cornell Lab of Ornithology. 2015. Black -necked Stilt. All About Birds. Cornell University. Available at: https://www.allaboutbirds.org/guide/Black- necked Stilt/lifehistory. Last accessed: October 5, 2016. Craig, G.R. and J.H. Enderson. 2004. Peregrine Falcon Biology and Management in Colorado. Colorado Division of Wildlife Technical Publication No. 43. Decker, K. 2006. Asclepias uncialis Greene (wheel milkweed): a technical conservation assessment. USDA Forest Service, Rocky Mountain Region. Available at: http://www.fs.fed.us/r2/projects/scp/ assessments/asclepiasuncialis.pdf. Last accessed: October 4, 2016. April 24. Environmental Science and Engineering. 1988. Bald Eagle Study Winters 1986-1987, 1987-1988 Final Report. Prepared for the Office of the Program Manager, Rocky Mountain Arsenal Contamination Cleanup. Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. University Press of Colorado and Denver Museum of Natural History. Gillihan, S.C. and S.W. Hutchings. 2000. Best management practices for shortgrass prairie birds: a landowner's guide. Rocky Mountain Bird Observatory. Brighton, CO. Hammerson, G.A. 1999. Amphibians and reptiles in Colorado. 2nd ed. Niwot, Colo.: [Colorado]: University Press of Colorado. Haug, E.A. and L.W. Oliphant. 1990. Movements, activity patterns, and habitat use of burrowing owls in Saskatchewan. Journal of Wildlife Management 54:27-35. Hillman, C.N. and J.C. Sharp. 1978. Return of swift fox to northern Great Plains. Proceedings of South Dakota Academy of Science 57:154-162. Kilgore, D.L., Jr. 1969. An ecological study of swift fox (Vulpes velox) in Oklahoma Panhandle. American Midland Naturalist 81:512-534. Kingery, H.E. 1998. Colorado Breeding Bird Atlas. Colorado Breeding Bird Atlas Partnership and Colorado Division of Wildlife. Knopf, F.L. and M.B. Wunder. 2006. Mountain Plover (Charadrius montanus). The Birds of North America Online (A. Poole, ed.). Ithaca: Cornell Lab of Ornithology. Available at: http://bna.birds.comell.edu/bna/species/211. Kuford, C.C. 1958. Prairie dogs, whitefaces, and blue grama. Wildlife Monograph 1-78. 52 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Martell, M. 1992. Bald Eagle Winter Management Guidelines. USFWS, Reg. 3, Minneapolis, MN. McDonald, D., N.M. Korfanta, and S.J. Lantz. 2004. The burrowing owl (Athene cunicularia): a technical conservation assessment. USDA Forest Service, Rocky Mountain Region. Available at: http://www.fs.fed.us/r2/projects/scp/assessments/burrowingowl.pdf. Meaney, C.A., A. Deans, N.W. Clippenger, M. Rider, N. Daly, and M. O'Shea -Stone. 1997. Third year survey for Preble's meadow jumping mouse (Zapus hudsonius preblei) in Colorado. Under contract to Colorado Division of Wildlife. Boulder, CO. NatureServe. 2015. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, VA. Available at: http://explorer.natureserve.org. Last accessed: July 25, 2016. NatureServe. 2016. Colorado Watercress Comprehensive Report. Available at: http://explorer. natureserve.org/servlet/NatureServe?searchName=Rorippa+coloradensi s. Nelson, D.L. 1998. Long -billed Curlew. Pp. 182-183 in Colorado Breeding Bird Atlas (H.E. Kingery, ed.). Colorado Bird Atlas Partnership and Colorado Division of Wildlife, Denver, CO. Platania, S.P. 1990. Ichthyofauna of four irrigation canals in the Fort Collins region of the Cache la Poudre River valley. M.S. thesis, Colorado State Univ., Ft. Collins. Platania, S.P., T.R. Cummings, and K.J. Kehmeier. 1986. First verified record of the stonecat (Noturus flavus (Ictularidae) in the South Platte River system, Colorado, with special notes on an albinistic specimen: The Southwestern Naturalist, Vol. 31, pp. 553-555. Power, M.E., D. Tilman, J.A. Estes, B.A. Menge, W.T. Bond, L.S. Mills, G. Daily, J.C. Castilla, J. Lutchonco, and R.T. Paine. 1996. Challenges in the Quest for Keystone Species. BioScience 46:609-620. Preston, C.R. 1998. Ferruginous Hawk. In Kingery, H. E. (ed.). Colorado Breeding Bird Atlas. Colorado Bird Atlas Partnership and Colorado Division of Wildlife, Denver. Preston, C.R. and R.D. Beane. 1996. Occurrence and distribution of diurnal raptors in relation to human activity and other factors at Rocky Mountain Arsenal, Colorado. Pp. 365-374 in D.M. Bird, D.E. Varland, and J.J. Negro (eds.). Raptors in human landscapes. Academic Press, London. Savage, M. and E.A. Savage. 2001. Milliken I and II projects, Weld County, Colorado: Preble's meadow jumping mouse survey report. Unpublished report to U.S. Fish and Wildlife Service. 10 pp. Sawyer, H. and F. Lindzey. 2000. Jackson Hole Pronghorn Study. Wyoming Cooperative Fish and Wildlife Research Unit, Laramie, WY. 53 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT Sharps, J.C. and D.W. Uresk. 1990. Ecological review of black -tailed prairie dogs and associated species in western South Dakota. The Great Basin Naturalist 50:339-345. Smith, R.E. 1967. Natural History of the Prairie Dog in Kansas. University of Kansas Museum of Natural History Misc. Publication No. 49. Spackman, S., B. Jennings, J. Coles, C. Dawson, M. Minton, A. Kratz, and C. Spurrier. 1997. Colorado Rare Plant Field Guide. Prepared for the Bureau of Land Management, the U.S. Forest Service, and the U.S. Fish and Wildlife Service by the Colorado Natural Heritage Program. Tannerfeldt, M., A. Moehrenschlager, and A. Angerbjorn. 2003. Den ecology of swift, kit, and arctic fox: In The swift fox: ecology and conservation of swift foxes in a changing world (Sovada, M.A. and L. Carbyn (eds.)). Canadian Plains Research Center, Saskatchewan, Canada. U.S. Fish and Wildlife Service (Service). 1984. American peregrine falcon recovery plan (Rocky Mountain/Southwest population). Prepared in cooperation with the American Peregrine Falcon Recovery Team, U.S. Fish and Wildlife Service, Denver, CO. U.S. Fish and Wildlife Service (Service). 1992a. Endangered and Threatened Wildlife and Plants: Final Rule to List the Plant Spiranthes diluvialis (Ute ladies' -tresses) as a Threatened Species. Federal Register 50 CFR Part 17, Vol. 57, No. 12, pp. 2048- 2054. January 17. U.S. Fish and Wildlife Service (Service). 1992b. Interim Survey Requirements for Spiranthes diluvialis. U.S. Fish and Wildlife Service (Service). 1999. Survey Guidelines for Preble's Meadow Jumping Mouse. USFWS, Colorado Field Office. Revised: April 2004. U.S. Fish and Wildlife Service (Service). 2003. Migratory Bird Permit Memorandum. April 15. U.S. Fish and Wildlife Service (Service). 2004. Endangered and Threatened Wildlife and Plants: Designated Critical Habitat for Colorado butterfly plant, Proposed Rule. Federal Register, Vol. 79, No. 151. August 6. U.S. Fish and Wildlife Service (Service). 2014. Preble's Meadow Jumping Mouse. Endangered Species — Mountain -Prairie Region. Available at: https://www.fws.gov/mountain-prairie/species/mammals/preble/. U.S. Fish and Wildlife Service (Service). 2016. Endangered, Threatened, Proposed and Candidate Species, Colorado Counties. Available at: http://ecos.fws.gov/ipac/wizard/chooseLocation!prepare.action. U.S. Forest Service (USFS). 1997. Final environmental impact statement for Arapaho and Roosevelt National Forests and Pawnee National Grasslands. Fort Collins, CO. U.S. Forest Service (USFS). n.d. Region 2 Sensitive Species Evaluation Form. USDA - Forest Service. Available at: 54 THORNTON WATER PROJECT NATURAL AND CULTURAL RESOURCES ASSESSMENT http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5295284.pdf. Last accessed: July 24, 2016. U.S. Geological Survey (USGS). 2007. Aquatic Communities and Selected Water Chemistry in St. Vrain Creek near the City of Longmont, Colorado, Wastewater Treatment Plant, 2005 and 2006. Data Service 253. Available at: https://pubs.usgs.gov/ds/2007/253/pdf/ds_253.pdf. Whicker, A.D. and J.K. Detling. 1988. Ecological consequences of prairie dog disturbances. BioScience 38:778-785. Witmer, G.W., K.C. VerCauteren, K.M. Manci, and D.M. Dees. 2002. Urban -suburban prairie dog management opportunities and challenges. Proceedings of 19th Vertebrate Pest Conference 19:439-444. Woodling, J. 1985. Colorado's Little Fish: A Guide to the Minnows and Other Lesser Known Fishes in the State of Colorado. June 1985. Colorado Division of Wildlife, Denver, CO. Available at: http://www.nativefishlab.net/library/textpdf/20824.pdf. 55 CACHE LA F'OUDRE Proposed Pump Station Site Location Horse to Reservoir VANCE BRAND AIRPORT Loveland ' .Longmont Alternative Pump Station Location COLORADO 'Fr( Dacono Erie • ERIE M11100". ,RI RPOR. Windsor ,Platteville Alternative Pump Station Location Alternative Pump Station Location tone Jerick 3rightort, Thornton Water Project Adams, Larimer, and Weld Counties, Colorado TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 0 35 7 N Miles A Fort Lupton Hudson Barr Lake Figure 1 Vicinity Map Prepared for: Gty of Thornton File: 5241 Figure 1 1041.mxd [dIH] December 11, 2017 ERQ CRC Reroi,rce_c Corn 'ortrons of this document include rote lecrum o'ooeny of ESRI and its licensors and are used her@n under i.censo Copyright C 2016 ESRI and its licensors A • yr.!s •esvrvec .1 t Proposed Pump Station Site Lyons ft/ S ouldeti i• Laporte• _ 718' 1. ,r�'T' 4 tl.5.al 612 — >>I� Ctvi;tmar+ Frcld • Fort Collins' , Horserooth Reurvo,r Fog I Col ul' [br.nro/.n Air I: oil Fort Collins Loveland Muni Aliporl 'T 2s lens Loveland Vance Brand Airparl Niwo Campion Mineral Rd BHRRL Boulder _punt Alrpat yam,,.. 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UNEP- NOM- increment P Corp is Thornton Water Project LJ TWP Corridor Study Buffer Weld County Permit Application 1 4i Weld County Permit Application 2 Weld County Permit Application 3 a; Lorimer County Permit Application 1 Broomfield ional EBCO. • Raptor Nest Observed by ERO Bald Eagle Nest Site Buffer Bald Eagle Roost Site Bald Eagle Communal Roosts Bald Eagle Winter Concentration Area Bald Eagle Winter Forage Area Bold Eagle Winter Range Swift Fox Overall Range Common Garter Snake Overall Range Preble's Meadow Jumping Mouse QEvaluated - Not Trapped Trapped - Not Found - Preble s Meadow Jumping Mouse Occupied Range Figure 3 Special Status Wildlife Overview Prepared for: thy of Thornton File: 5241 Figure 3 1041.mxd [d1111 June 6, 2018 Pon•ons al th,s document include intellectual orooe•ry of ESRI and its licensors and are „sea '^e•epn under license. Copyrigl.• C 2016 (SRI ana conson. All ngkts reserved Thornton Water Project O TWP Corridor QStudy BufferWeld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Larimr County Permit Application 1 a Ditch p Open Water Wetland Riparian fl Mined Upland Agricultural Nonnative Upland Devoloped/Disturbed 0 750 500 Z- fest Figure 4.3 Vegetation Communities Nrowed bt. Gq d %man Mt 5741 Figure l I0l I.rrad (de( ]Kerber 11, 2017 ERQ 010 4a row Can As mope- C Coorcht 7C ;5 _S.C A w O t P • Thornton Water Project TWP Corridor iiiStudy Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 aas Ditch Open Water Wetland Riparian Mixed Upland Agricultural Nonnative Upland Developed/Disturbed 0 250 500 Feet Figure 4 4 Vegetation Communities Repobt: Gly of Thornton 571 ripe 4104I,nod (dlHJ Dearly I1, nu 14.H-) Ar.a roper C Copy." 70'5 ..SaA W:+ Thornton Water Project Figure 4 5 Vegetation Communities TWP Corridor Study Buffer 6 Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch Open Water Wetland Riparian ' Mixed Upland Agricultural Nonnative Upland Developed/Disturbed J 250 500 Feet Newtel br GI of flume we Sill Figure 4 1041 nod (dl1j Dearest 11, 7017 I:RA Leo 4na.•n :dc Pe al In g.- c coarse. 70'5 .3:.s ua • Thornton Water Project TWP Corridor aStudy Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 • . 0..' tA •1 Ditch Ea Mixed Upland Open Water Wetland Riparian 11 4rri- Agricultural Nonnative Upland Developed/Disturbed 0 250 500 �Fwt Figure 4.6 Vegetation Communities tts hi:argot of 0 osntan Flc 5241 Figure 4 I0dl.nd (diHl Dour er I I, 2011 ERQ LiO to -et :,en w•.& Inca.. C Coprgn 7015 USA '.vi Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Thornton Water Project TWP Corridor Study Buffer eicl Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 C:11LorimerCounty Permit Application 1 Ditch Open Water Wetland Riparian Mad Upland Agricultural Nonnative Upland Developed/Disturbod 250 Figure 4.8 Vegetation Communities %p od be Sty of Thornton Hk 5241 Figured i 01l.ttod OH! Doran** I1, 2011 14:1Zu E iC a ... ft .. AN,d Imago: C Caprgn 20'5..S:J� W o r a R alt" r • era. 1 • ! U . r. -e w, 8 n c 1 ' `y [1. 1 ♦ �- k ai -` _ IPIt 1 ` `. �`� \• ;• 1 i ..ilaSIMOIINI S I - 0 O •- f a / t y � r .. e • 14. Hinkley take \ 30.66 acres t i ._s___ v., • ‘..., . ,. ls. _ilkThornton . I, •,.r Water Project Corridor — Ditch — Mixed Upland Figure 4.9 Vegetation Communities O TWP O Study Buffer Open Water Agncultural • Weld County Permit Application 1 WetlandNonnative Upland Weld County Permit Application 2 - Riparian a Developed/Disturbed County Permit Application 3 0 250 500 PagWeld t br: Gryof !batman iR� flit 5711 Figuq 4 1041.nd (dill NMI Lanmr County Permit Application 1 rfiFr»t Dante' 11.1011 cloaa-•.co.. Ar•d ktge C Copr gn ?Q' 5 ..5'w W" F► ^' elb . 1 ;� .3. >010The al 1 rt i f , '` WI • Sl'aillita IMO. OP a tot ...I r' • • \ It ••_ • .. •' no • J NIL itit. a . - •� ' J 1 S H 1 4" ` 43‘...t - iir 411 unnamed 9.01 aces Panes Thornton Water S Rat Arid Im.0.: C Comings* 7075 ..SC'A NAP t l [. 1 ` I lyII .. I - �, ' \i.. - _ • • • ,i, .. } I, e I I� ■� tt� � I ....,_,.. } eser, - rT �' . .r ,. • 1 A a_ _ r• %7.i i t / �• ' i 1 K, O - a , K ee L�jy i 111111" I y. '� a L. 1. t. '. 1•.� - ...rte" - i 4 iiitiltigt0 ".4- • ,L..z..5 (.....e.. tIs 1 .., .. j1. r y _-7 71 ,1'":Ye.1 r..c 1 • 1 II - Thornton Water Project Figure 4 11 O TWPCorridor _ Ditch ® Mined Upland Vegetation Communities Study Buffer Open Water Agricultural Weld County Permit Application I Wetland Nonnative Upland ItiWeld County Permit Application 2 - Riparian pi 1 Developed/Disturbed Weld County Permit Application 3 ,� Larimr County Permit Application 1 0 250 500 e Feet Pte ixtled br Dy of Thornton ! file Sill Fpue d 1p/l mad (Mil h RGa Deny II, 20l) 1-111 .:r /v•o Imager C Cocr is 2015 LSDA MIr F i I W6 L39 atoms _ F l r r 4 y. 1 i 1 I Nil.' 'ate Unnamed Lai e. I Pond 54 ac n.. • 1 w f , la d Thornton Water Project Figure 4 12 1WP Corridor - Ditch jel Mixed Upland Vegetation Communities Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland MIN Weld County Permit Application 2 - Riparian aka Developed/Disturbed Weld County Permit Application 3 0 250 500 pb1.uty01Thornton F 574 lt 5711 *re 4 104I!rod (Mil 041.i 1,�� INN Lorimer County Permit Application 1 l Feet cbmroe 11.7017 Etoe. . ,...-ya panel Imago: O Carr ?Q'-5 :St11 a 3 c - , wa 1.3 Mares T s 1 \Y or t. 1 , - • Aj, e. Y r rt • eft' il .- .. a—' ; bt j ti tit. • ' il re�3 } k r' J. • .(1/4. .f' / t, sw4.• ,, I • . _ - Q t7 7 r Unnamed Pond 6 o. tl sstyy'>,y .1 r f > = .. 6.06 acres Thornton Water Project Figure 4.13 Vegetation Communities f sect bt: Ott of %miss Fs 5241 Figure 4 10Al.nd (dlltj I:RC) Oererbe• 11.2017 0104..3.-n C:.a TWP Corridor _ Ditch Mixed Upland Study Suffer Open Water Agricultural '' Weld County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 _ Riponon MOP Developed/Disturbed Weld County Permit Application 3 0 250 500 IMO t�'F Lorimer County Permit Application 1 ,., n..d .wps C Coer9"' 2015 ..S'J. a-' at�<' . •e i. t Unnamed 6.06 acres Pond 6 f A4 .. it S. .a3 ' •• i it iIs 4 0 c c 1 '7".;.. se' _ . W11 83434 acres Tlmnath Reservoir 15.54 acres I Wu 681 acres �. 1 • F� 4. .,� 1 k I t - II • _ • Y 4M N I Thornton Water Project Figure 4.14 PAT Corridor — Ditch as Muted Upland Vegetation Communities Buffer Open Water Agricultural OStudy Weld County Permit Application 1 Wetland Nonnative Upland MI Weld County Permit Application 2 - Riparian tai Developed/Disturbed Weld County Permit Application 3 0 250 500 a ^eaves b!: Of al Thornton Fie: 5241 Igoe 41041.mid ldlHl ))%� .1(O G Lorimer County Permit Application 1 —Feet ikterS I I. 2011 ;.o s ->x ..,;,•, IW'a rage: C Copt'res 2015 uSOA %AO ,.....: ... 7..,et, ;\ ti • . • t"fir vie q a, 'ow i( _ ,: / ' +•- (' 1 IfI Iif • t _` A , ,�•, OMJt p Unnamed Pond 7 1 = t 0.44 acre -- — --•• �.•n. - ., • - , 1 Unnamed Pond S Plealliril. -t:.. 41. '••i! :y -.4 1:1 y•rr�..'' fel 0.1 acre ' k • } . ' a `. !r I I •p' d4l i J 411%3/4% • i: r _ • \ . , Thornton Water Project Figure 4.15 O TWPCorridor - Ditch lag Mixed Upland Vegetation Communities Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland NMI Weld County Permit Application 2 _ Riparian LW Developed/Disturbed Nomad br: Gry of Ihamon u Weld County Permit Application 3 Application 1 0 750 500 Feet ri t: 5241 figure 41041.nud Idl i DeremSoll,20)1 ca0 E Lanes ( Coop aLorimer County Permit Meal imago: C Coorrg a 7C' 5 p.i. i] • a' 1 • J ♦ It le • C. '' s ` '• a Unnamed Pond 6.06 acres � • • e.. 9 sSi . re `' ft yU� t I • p c.• ce 1 • L 41 ti • • ctx�eti. •' " tf E'`' a /, Y r se i+ • • P., yPt {_ " :,_ 4 .e ■ • r •t t 4 • 4� tI �� r4 . r 5 Thornton Water Project Figure 4.16 Vegetation Communities Pound Ito: ON of Ihmnron Ric 5241 rigua 4 1041.md jditi1 0ecenber 11.2011 :•.C 11.1O s ,� 1WP Corridor Ditch Mixed Upland Study Bufhr Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 - Riparianaki Developed/Disturbed Weld County Permit Application 3 0 250 Spp M. Lorimer County Permit Application 1 Feet Pad image: C Cowries 70'S JS�,A w• BWald County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 _ } • 1.• t /� Cache la Poudre River �•, / Unnamed Pond 13 R ` , 4.93 acres 0.65 acres/ t A 1 , 1 N . I C p Lr • W75 t.i- : 1. 4-4 acres R• .„ • tie • Lam* / �- ^. .i a Unnamed 0.91 acre Pond 34 -.T.:4 ll /Psi. .`• •t - r Unnamed Pond IS �,. ,r� _4.0.63 sank acre .. • r r. j ell ♦ t' c • J P. ••II < t it/ 3,4 6 •_� r. 11144. es or •�'X. _ � 4 -t_ - - �:. k 1 11/�� AV. -le' i•' . .. V• . <-. Last h , •� • • , ' v r iti 4, s , ,. ..e r l a h y ! • r r kill� 4 it 1 Thornton Water Project Figure 4.18 1WPCorridor _ Ditch Mined Upland Vegetation Communities Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland MB Weld County Permit Application 2 - Riparian nil Developed/Disturbed 'wzr bt: GPI of Thornton Weld County Permit Application 3 0 250 500 e Filt 5741 ;gin 41041.md oil 1,1(O 5 Lorimer County Permit Application 1 JCcret6n I I. 7017 tn; inc,. •, ; ,,, fret Me o ••rage C ^ar'gS 20`.5 LACA WP 1 e L r • 8 - . l ` .. I. r ,• F •y1 •r+ •et / .i _a� , • 4 a i:. OP 2. 3 S ii --,._ - �. _ r dA+ 1 1 • _ ay^,4 ` •�- •i A `• 1♦ s a aetla . • I1 )I.' 4 e I - lie J.' � x .,. i y 3 9 -- ' A • •• 1 V r y :4 f• yr' • 4.ie d • Ite w I. �.- JVV a4.t 1 ,0 4 ' Y _ . .,. • " /,9 a, r•- -r • l # Thornton Water Project Figure 4. 19 Vegetation Communities Pleated ix: City ol %man `7K�%� fib, Sill figure 4 IOC .mad (dllj 1-4 \(!) Dean* 11, ?0i l Lao an m: wo Q TWP Corridor — Ditch a Mixed Upland Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 — Riparian Developed/Disturbed Weld County Permit Application 3 0 250 500 Lorimer County Permit Application 1 !. ' Feet AetuoW Imeee: t Capyngs 2O" S LSOA SA • :a .. 1 • Y.�. 2. OAP .4i i .• • r e . t• a' - PA• a ..". z? ,rte._ , / I. :•. e [i•roia eyif� .-•.! �@fl - {:JL. .S OI . e, r.. bi's"e =i�il4 -�- I•._-....,_ _ 7 4M fy �; K : Csl li tAi 'I . __Li 4 _ app • • p• . r hh • c W15a 2.82 c es - I a illird I Jl ��* It. el4-f' t Oklahoma Pnecvor 35.15 acres j art. ..F • 1 r I I I iWilc I 1 1 t I � . • 7S .1- S] i it I � .a' t . Thornton Water Project Figure 4.20 OtWPCorridor Ditch Mined Upland Vegetation Communities Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland MN Weld County Permit Application 2 - Riparian Developed/Disturbed Wald County Permit Application 3 0 250 500 °4ep5241 c Gly aof ThemI0IL, File 5241 ligate 4 I0el.mtd ItIIHI 1 I �� Lorimer County Permit Application 1 Foot Dermlbet II. 2017 --,11 :,n,.„-,., Mow Imago. C Coorar. 2O15 USDA NA,P j • i 1 ' � _ _P ____ 1 .�` " F.' j I I I s 1 4 - - -A • • o. OD` s I p I • 4 I II ^�_ • ..I was 4.32 atres 9. I - ~ r .' — .. — ��f' "` . �..•� re ..es - r � • lit rf 1i 4. ) ii - r f .. I . I .1 j .4; t„ ii ;[ a jii .: '1 I '- Iki I j t ,, - II 1 . hh s t '. I 11 , "r'.'r4 %',r, ,. s.� illis I r f 4. .._ cif. Thornton Water Project Figure 4 21 Vegetation Communities 'Sawed for Gty of lhotntan 61e 5141 Nowt 4 1041 and leiR Decraba ;1,7011 tint.%,;., V uO :7„n TV/P Corridor _ Ditch _ Mixed Upland Study Buffer Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland ME Weld County Permit Application 2 - Riparian +_E _ 1 Developed/Disturbed Weld County Permit Application 3 ® 0 250 500 IBM County Permit Larimer Application 1 Foot M' S �mopr o Coons 20 5 t,5d...N:P I __._._ __ likWi r l • `t • i t•:'vr ,. l - . .1 , t ...., , i. 'i i q 7fir. tt i { r t F r. i•w •. •' tom• Ar f a • • Il _ y fl ,I 14 , , I _ .41„,_. 4 r , \ ' Nii • WIi e542 acres f j r ' C. _ ► 1 I 11 r1 , -----____ .a%** ~rhC ! I . 1 ( 1 I I s 0,, k. °s Er; T err. _ •nc,.r,.r Nit. `\ `r_ I! AAA -' - 3• VM .,,y 4 _ •..r -.. _ _ 1.15'atrrz 010J � _ e > r IIIKnt _ - • 1< Thornton Water Project Figure 4.22 Vegetation Communities Nano lei., ay of Merman ,i t 57424 1 {'gore 4 104l.mx1 PHA 1.: Ric) NatilrII,2017 Eaor..o,'-.,r,o j� lWPCorridor _ Ditch jl Mixed Upland Open Water Agricultural Weld County Permit Application 1 Wetland Nonnative Upland Study Bufferi§ Weld County Permit Application 2 _ Riparian Vial Developed/Disturbed Weld County Permit Application 3 0 250 500 Lorimer County Permit 1 Application - Ent As 0, ,..Oye CCeprgr 20;5 SA NAP Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Aral image.. C Connie/ 20 5 USDA SAP Thornton Water Project Ell IWP Corridor iiiStudy Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch Open Water Wetland Riparian Mixed Upland Agricultural Nonnative Upland OP Developed/Disturbed 0 250 500 e Figure 4.24 Vegetation Communities Dewed b7: Gty of Thornton Mt 5241 ;gyre 4 1041.ned IdINt Derby 11, 201/ F. RO ;tCY.x zit,:.a Ar.d inviter C CoprgS 7075 WGA VA)? Thornton Water Project Figure 4.25 Vegetation Communities 41, TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 • • W63 0.28 acre Ditch Open Water Welland Riparian Unnamed Pond 18 0 47 acre el Mixed Upland Agricultural Nonnative Upland la Developed/Disturbed 0 250 500 alid Feet Pe yed br: Cry al Nankin tnfon 64:5211 figures 1041,Imd jdlHl December I, 1017 r. cat ERQ FAO ttn-cn : yp As to; Image: C Cop 70'S :.SOA Vtio Thornton Water Project 1WP Corr: dor 0 Study Buffer Weld County Permit Application 1 �,. Weld County Permit Application 2 Weld County Permit Application 3 Cillanmor County Permit Application 1 Ditch a Open Water Wetland Riparian Mixed Upland Agricultural Nonnative Upland Developed/Disturbed 0 250 500 0 feet Figure 4.26 Vegetation Communities howl bt: Golf of lhwmon rile-, 5241 rt ie 4 I041.mxf IdhIj Jecerbn 1 I, 2017 ERC) E7O t.a nCan Ard Imago: 0 Copt.yr+ 2015 L.SW MP 1WP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 At' o I^109 •: C Coor'g d 2015 JS^A NUo Thornton Water Project INII 1WP Corridor IA Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 NMI Ditch Open Water Wetland Riparian ® Mixed Upland Agricultural Nonnative Upland la Developed/Disturbed 0 250 500 Fin! Figure 4 28 Vegetation Communities *end b': Gry of lhotn on lift 5741 figure 41041 rot IdIHI X11,7017 F RA 4 fiD La.r:ra At+al'nogg: C Coorgn 2O;5 uSea SA'? Thornton Water Project Figure 4.29 Vegetation Communities TWP Corridor LStudy Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 NMI Ditch Open Water Wetland Riparian Mixed Upland Agricultural Nonnative Upland Developed/Disturbed Unnamed Pond 20 1-1I acres 250 .500 Feet eteaCCCO m Nand lor: thy of lhornrta Fitt 5241 Figure 4 1041.ttnd [dIH[ lards I, 7011 E` O Laebn•rn Cnn Mr.oI Irwe0er c Conyrgr' 20; 5 L.s ^.A,a O • • Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application I Weld County Permit Application 2 Weld County Permit Application 3 CLorimer County Permit Application 1 Ditch aisMixed Upland Open Water Agricultural Wetland Nonnative Upland Riparian x Developed/Disturbed 250 500 e Fear Figure 4.30 Vegetation Communities AWored 6r: Gty o1 Thornton file 5241 figure 410e1.nd ((Mil D csti l 1.2017 tC Wn--n morn Am•a. frog). C Capyngs 20 75 USDA NAP r Thornton Water Project TWP Corridor Unnamed Pond 56 Di acre IAStudy Suffer Wald County Permit Application 1 Wald County Permit Application 2 Weld County Permit Application 3 Larims County Permit Application 1 Ditch Open Water Wetland Riparian Mixed Upland Agncultural Nonnative Upland Developed/Disturbed 250 500 Fne Figure 4 31 Vegetation Communities h o r st lot: Cry of ihomm Fie 5241 rpute 1 1041 nod PIM] Natit a 11, 2011 FRO Aetna i,.mg.: C Coorli" 20' 5 5]114 Wm �: -rilm.. ii. :.00 :,+f 1 s • 1 i st r. 1 S. IMF _ • , �. 1 . ti „.23 a 69 acres • 1 ___ ________, • S ._ F -, ,-.., 4,;; Iiiii.e •4 `'I 1� •� I/ _ e . ., . .. mit Unnamed Pond 12f - 11.94 acres I r, 1 ,, .. ♦, 1 a t1' y + • • • Ili 1. It • f'� 1 it Thornton Water Project Figure 4.32 Vegetation Communities '-Px24 .. .:IY3: Q:Permitl Re. 5241 fiquro4IQ4 -4: . Dent 11.2011 .::-.4-4 RO -,,:,n, O TWP Corridor - Ditch MN Mixed Upland Study Buffer Open Water Agricultural NM Weld County Permit Application 1 Wetland Nonnative Upland MI Weld County Permit Application 2 - Riparian `� Developed/Disturbed Weld County Permit Application 3 MN 0 250 500 Lonmr County Permit Application 1 —Feet Z Apra ,..,Dg. C r-ocr an 20.5 ..SD* a' Thornton Water Project Figure 4 33 Vegetation Communities TWP Corridor R Study BufferWeld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch Open Water Wetland Riparian W24 127 acres Unnamed Pond 58 u - acre S0 Mixed Upland Agnculturol Nonnative Upland WI Developed/Disturbed 0 250 500 Fee r W26 2.09 acres St Vratn Creek 871 acres *cad br: Gtt al Tanrc n Flit 5741 ham l 10/1 rtad OH' ]xmbe %201J t. Vramn Croak W2S 3.69 acres 1 RU Aar, cif nog. c Copr^gri 7015 :.SCA SA:? Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimar County Permit Application 1 Ditch 1 ifiFit Open Water Wetland Riparian Unnamed Pond 24 9 42 acres Unnamed Pond 25 0.4 acre Unnamed Pond 2a 0.39 aces all Mixed Upland Agricultural Nonnative Upland Developed/Disturbed Unnamed Pond 26 3.65 acres Unnamed Pond 27 6.63 acres 250 Figure 4.35 Vegetation Communities Nand for: Gry of Thornton lift 5141 figure 4 tell mid OH Oscarbar 11, ?Oil ESC anw n:rya heal Image C Comet. 7C 5 5 A sa, 5V - 04 ii; i _ T W31 L12 acres ,,b Aa Unnamed Pond 28 a 39 acre J - J�J. i / 1 Unnamed Pond 0.83 acre 59 II mlif i I t} I - ♦ 'M Y` - - + . T • 111 I L. 44 r •I : t'+,� -� libt � I acres i s ..., A -4 l -• ••�, 1.79 r 1w f • Thornton Water Project Figure 4.36 Vegetation Communities bt: Gry of ll pnt01 hit 5241 Non 4 1041 mud ldej 0ecrAi t i• 2011 l :1 Z� TWP Corridor - Ditch Minced Upland LStudy Buffer Open Wats, Agricultural i Weld County Permit Application 1 Worland Nonnative Upland Weld County Permit Application 2 Ripanon Developed/Disturbed Weld County Permit Application 3 0 250 500 County Permit 1 Lorimar Application Fee, 440 o •nogc C Lo°rr 2C' ] ..SJa 1A' Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch l.. Open Water Wetland Riparian Mixed Upland Agricultural Nonnative Upland Developed/Disturbed 0 250 500 fa —� Feer Figure 4 37 Vegetation Communities hoored br• Ggol thotnton 514' rives 1041 rite let. pen- ?Olt Arid Ica gux a Coopg$ 2015 .SOA '4Aa Thornton Water Project Figure 4.38 Vegetation Communities TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch Open Water Wetland Riparian fas Mixed Upland Agricultural Nonnative Upland ® Developed/Disturbed 0 250 500 Feet %r40 bi: Gtf of Thantan cite- 5141 igwe 4 104l eel karts I 2011 1E:1.1O tC Ina- n:x liana' :maga C COPT V. 7C' 5 .SC* M:P Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application I Ditch Open Water mixed Upland Agricultural Wetland Nonnative Upland Riparian mar Developed/Disturbed Alternative Pump Station Location rale I 0 250 500 Set Figure 4.39 Vegetation Communities ^exied hr. Gryof Thornton tie. 5111 lips) 11011 and kit!' Dearer 11, i011 Aria'Toga: t CarM'0^' 1C.] .h 3A %A^ ., 1-41, :10 $ i, } • . ••rc *c a irtv: Viet , • If 1 � .Lad ... _ .01111 !t I 9 I. Unnamed Pond 60 029acre F • 4.111 _ _ , • •A • Y v I 1w`+mil I { L.--- -� It11�j } I X +T am t• 4, o Irk /t!f Thornton Water Project Figure 4.40 Vegetation Communities Peg end ix: Gryof thom.;r Ale: 5211 *el !NI ,rad id i pparnpp II, 70I1 I: 1 \‘') TWP Corridor Ditch .Mixed Upland Study Buffer Open Water Agricultural Weld County Permit Application I Wetland Nonnative Upland En Weld County Permit Application 2 _ Riparian Developed/Disturbed Wald County Permit Application 3 250 500 County Permit 1 `r..t iiimili Lanmer Application Afro • ag. C Cocrgrr 2C'5 M r y4 i f. ` sm.r S 1 N 1 ll ,e . t .x"44. - I • 'i a ' f t J_t.11 7.1 '• + r • . 4u I -II Via,r t - 91-* • . ~_ fir tit`4 t :4.1;-"- I. reii �" - i � r 'St • r _.. t: - ' x ....- 'tom. .. y `� f I I i .• Thornton Water Project Figure 4-41 Vegetation Communities h. S bt: Gryol iho niaiPermit Fitt 5211 figure lal.tpljdIB] Deetter I. 201) 1.:1ZC) 1WP Corridor Ditch Mused Upland Study Buffer Open Water Agncultural 'Weld County Permit Application 1 Wet!ana Nonnative Upland Weld County Permit Application 2 Riponan Developed/Disturbed Weld County Permit Application 3 0 250 500 iciLorimer County Permit Application 1 Arid imager. C Core. 20? 5 .ADA W -�. = ,s� w . 4 ° r: P • III Pr e it f ; J R IE tS` I kt Link ' GiteR 1.51 acres t ✓ Le- Y • f xi }i t '1 ti 1 \ , IA c Thornton Water Project TWP Corridor - Ditch Mixed Upland Study Buffer Open Water Agncultural Wald County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 Ripanan Developed/Disturbed Weld County Permit Application 30 Larimr County Permit Application 1 250 500 Feet Figure 4.42 Vegetation Communities Newel lot: Gty of fhotmon tilt5741 F'gwe41041.nod(dHI kiss* I1, 7017 l.�.l(1e) -„ IIIMI Pena t•neei o Gagne' 20 : S 4504 MAt r..* r: . Wit, ,'yr ?j ._ aer ....4..„ ,3/4fr r• r ' T '4 ::cji•;.'amalliat. I ;.y ,i.:, 99999 '{`.d1 �{ il` .A '• - I - lr�+ s . t -.. y �y 3� •i _-'r.. tE� 7[ Bull Ditch _� ♦ a re/ Unnamed Q89 acre UnnamedPond33 Pond 32 ..f r, .•-.�_ --� Unnamed 0.16 Pond 34 acre .111 _ • ii�i�e- Unnamed 0. Pond 35 L5 acre a--�_�. tom' ir 7 .4►r ♦ . _ere •:,.' _ ,"�. - r a I W32 102 stns _ ++rj 'tars` • ' -'•-• . lag ..- ' — -� <..' _ - v f`f"Y♦ 'l� •• r Pond Unnamed 3.54 acres 36 Pond 37 Olt Ii1 r. Unnamed 1.51 acres Thornton Water Project Figure 4 43 Vegetation Communities NOS me sic ;gutty4 1041 mil r f i I R Decanter '1A 1011 trot.. -n; _, fl TWP Corridor — Ditch Mixed Upland Study Buffer Open Water Agricultural itiWeld County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 - Riparian Ng Developed/Disturbed Weld County Permit Application 3 0 250 500 e MI Lorimer County Permit Application 1 - Fear +v.a i.rogt C Copy, g••• 7C' 5 .5:A H' 1 �� i 11 4 { ,. is e 4: ..., �� I ' . t ;II' + -�c . - • 1 „k4III i ,, ...,.....,.., � Unnamed 0 28 acre Pond 61 LYO W34 1.63 acres Or�'�~F Y 4• i J ' AC it ' ., s �. a Unnamed Pond 38 6.87 acres .r yyr, i 21 liArtEs•' iti1` Y. '' 'C Y r- -fit t Creek .r , • z F .t W36 Q11447. �.O0rj.C'�ek �' W37 2.43 acres Big Dry 2.23 acres Thornton Water Project Figure 4.44 Vegetation Communities Gepoadlx: GryollAanan 'le 941 Gigue 41Q41,nd (IN! De-enter !I, 2017 ..�... 1.. 1(O •.. .. ,.. _ a � TWP Corridor — Ditch Mixed Upland Study Buffer Open Water Agncultural Weld County Permit Application 1 Wetland Nonnative Upland Weld County Permit Application 2 ® Riponan Developed/Disturbed Weld County Permit Application 3 0 250 500 Lanmer County Permit 1 (i), Application pp Z Fear N.o nvge.: Caret" x t• cA M.a v:35 0 11 acre Weld County County is Thornton Water Project QTWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Unnamed Pond 39 4.41 acres Ditch Open Water Wetland Riparian W39 46 acre Unnamed Pond 40 0.55 acre ® Mixed Upland Agricultural Nonnative Upland a Developed/Disturbed Big Dry Creek 2.23 acres Unnamed Pond 41 2 75 acres 0 250 500 Frei Droned (Wee 2 onaae Figure 4.45 Vegetation Communities Nord br: Cry of'horror Fir 511! figure 1 1011 nod tdH I Norm I, 20)! I. HO ;Pero] mope. C Copr.gn 7015 USDA rW i Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 1 Weld County Permit Application 3 Latimer County Permit Application 1 W42 4.O61 acre • IPP Ditch Open Water Wetland Riponon W41 1-22 acres Unnamed Pond 43 0.65 acre Mixed Upland Agnculturol Nonnative Upland Developed/Disturbed 1 250 500 (a Few Figure 4 46 Vegetation Communities *aid bt: aye Thornton Fltr 5211 *re 4 l C11.m1d IdH! Norte 1 1011 1TRC) d'+nye C Coorgf 70 5 ...s:a %As Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 S Ditch Open Water Wetland Riparian Mixed Upland Agricultural Normative Upland NIB Developed/Disturbed was 2.19 acres W4G 3 39 acres Unnamed Pond 44 0.35 acre 0 250 500 Feat Smith reservoir 0 31 acre Figure 4 47 Vegetation Communities -eznd br: Gty of Thornton hit 5211 Figsm 13011 atoll IdIM) DeanerIi,2017 [ RC-) Arid :mar C Cearg^' 20' 5 -&A w' i 7 J Figure 4.48 Vegetation Communities Thornton Water Project QTWP Corridor Study Buffer Weld County Permit Application 1 aWeld County Permit Application 2 Weld County Permit Application 3 Lanmr County Permit Application 1 W48 0.21 acre .--.r 0.22 acre Unnamed Pond 63 0.28 acre Unnamed Pond 46 2.41 acres Ditch Open Water Wetland Riparian Mixed Upland Agncultural Nonnative Upland Developed/Disturbed W49 036 acre Unnamed Pond 45 0 94 acre 0 250 500 49 Fein It be Gry of Thornton Fit 5141 Figgie 4 l a l .rtod tdll 0icaetar11,7017 V1ZO A. v -beer C Caort. 20 5 15::A +ad' i i c Thornton Water Project TWP Corridor O Study Buffer EiWeld County Permit Application I Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Ditch Open Water Wetland Riparian 1 r t WSS 0.0E acre '•Unnamed Pond 47 0.04 acre W66 119 acres !ranter Gulch 0.42 acre Se Mixed Upland Agncultural Nonnative Upland that Developed/Disturbed Unnamed Drainage 4 0 39 acre r Gulch W56 0.52 acre Figure 4.49 Vegetation Communities 0 250 500 ' Fein kr rs Pored bi: Gry of Thornton r+4.5241 figure 4 1011 nod [JIM' Demeter 1 I, 7011 1;RQ EC 2.w -re ;a, Air.@ wogs: C Caorrg^r 20' 5 ..SJt M a gene* OC ++a J O seats: envy O21 ..I 1:01 Ara:4C ➢I Prw 1101 a we' i n1≤ ? , w:urou! ;o k_' • :q oa.ma« saµlunwwoj uol4o{a6an OS b ain6'd CD , 00S OSL 0 Po9'nit!O/Psdoismoo puoldn wtouuoN lou tirost5y puoldn p.xtw uouod% PuolteM atom ado Pl!O uo!toagddy 4Iu+Ad Muno) au+uol c uoitoa!Iddy t!uead Munoz PIeM uoyo !Iddy flailed Alan) PIeM I uo!toa!Iddy toad kunoD PIeM a14n8 APnIS JopwoD dMl MN tcaloid Jai°M uo4woy j Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 Figure 4.55 Vegetation Communities Unnamed Pond 67 . - r 4 Unnamed Pond 68 0.32 acre Unnamed Pond 66 5.9 acres Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 NMI Ditch Ws Mixed Upland Open Water Agricultural Wetland Riparian Nonnative Upland Pill Developed/Disturbed 0 250 500 0 Nat O, • Pepped br. thy of %onion list Sill fig n 1 I0ll.r d (dlHj Dearbe 1.1. 2011 Astf.o 'maga: C Copyg"t 7C' 5 .S::, •••••• Thornton Water Project Figure 5 1 Proposed Pump Station Location n IWP Corr dor Study Buffer ® Raptor Nail Observed by ERO Bold Eagle Neu Sire Buller hobbit Meadow Jumping Mouse Wildlife Bold Eagle Roost Ste a Evaluated Not trapped Weld County Permit Q Prairie Dog Colony/Howb4 8urrowrnq Owl Ned ApplicMion IBold Eagle Winter Concentration Area rt Veld County Permitq Forage I 1 Trapped Not Found Application 2 Bold Eagle wince f • Area Weld County Permit Application 3 ;Lorimer County Hermit Application I 0 250 500 Few %end bl: Gry al ihwni 1i1 574! iquu 51041.lee (rill; Norte 11, 1011 1+.RC) �a :: -nogg . C Coar-gs 20 5 :&DA' Thornton Water Project O TWP Corridor Q Study Butler WIW County Permit Application 1 d County Mme Application 3 Welk! County Permit Application 3 =Lorimer County Permit Application 1 0 Raptor Nat Observed by ERO Bold Eagle New Site Buffer Ptabli s Meadow lumping house Bold Eagle Ron Site Da Evaluated - Not Trapped Pickle Dog Cabny/Fbuible Burrowing Owl Nee Bold Eagle Winter Concentration Area Trapped Not Found a Bald Eagle Winer Forage Area nIWP Corridor Q Study Buffer Weld County Permit Application I Meld County Mme Application 2 Weld County Permit Application ®Lorimer County Permit Application 1 Rapier Nast Observed by MO QP Pine Dog Co{ony/Pbsrble Burrowing Owl New Bold Eagle Nest Site Buffer Bold Eagle Roost Site Ct Bold Eagle winter Concentration a Bold Eagle Winter Forage Area Problo s Meadow lumping Mouse Evaluated Not Trapped ~n° Trapped Nol Found Figure 51 Wildlife Thornton Water Project Figure 5.4 Wildlife n IWP Corridor Q Study Buffer Weld County Permit Application I Meld County Permit Application 2 Weld County Permit Application 3 ;Lorimar County Pena Application I Bald Eagle Nest Site Buffer Preble's Meadow lumping Mouse Raptor Nest Observed by E RO Bold Eagle Roost Sae ID Evaluated Not Trapped Q Prairie Dog Colony/ipsuale Burro.rng Owl Nest Bald Eagle Winter Concentration Area O a Trapped Not Found Bold Eagle winter Forage Area 0 250 500 Fear h.s&ed br. Coy al pan* 6k 5241 figun 510A.Ind ldlHI Carter '1,2017 ERQ lac Ina -ye : sit 1r •a '.rtge. c Cmt"gn 2C' 5 4 -nn w" Thornton Water Project n TWP Corridor Q Study Buffer Geld County Mme Application 1 Id County Permit Application 2 Weld County Permit Application 3 =Lorimer County Permit Application 1 Bald Eagle Nest Sits Buffer ® Ropier Nest Observed by ERO Prebla's Meadow Jumping Mouse Bold Eagle Roost Site ® Evaluated • Not Trapped (=Prairie Dog Colony/Resale Burrowing Owl Nee f3 Bald Eogta Winter Concentration Ana l''1 Trapped Not Found CO Bald Eagle Willer Forage Area l _ l 0 250 500 41:I) Feet Figure 5 5 Wildlife Repottd bt Gry of llmntm iik. 5241 Figures 1041.nod IdHI Norte 1%1011 IRQ eaeta-et;as N v Tog* c tarn"' ?C' 5 --1CA %A? Thornton Water Project Figure 5.6 Wildlife TWP Cwrida Q Study Buffer 'itId County Parma Application 1 Id County Perms Application 2 Weld County Permit Application 3 CLprimer County Permit Application I *15 Raptor Nest Observed by ERO 0 Prairie Dog Colony/Possible Burrowing Owl New Bald Eagle Nest Site Buffer Bold Eagle Roost Site Cr Bold Eagle Winter Concentration Arta II Trapped Not Found a Bold Eagle Winter Forage Area Preblo s Meadow lumping Mouse ❑�- Evaluated - Not Trapped 0 250 500 (c) Z 1 Fitt Mpored br. Gty of Ihwnron Flt 5741 figure S 1041.rroil [dIBI Dart !I,701 ERC4 FRC ers--a *sow image: C Copier' 70' 5 ..S_a %A r n TWP Corridor Q Study Buffer r's'Weld County Permit Application 1 eW County Permit Application 2 WWI County Parma Application 3 pLarimer County Permit Application 1 Bald Eagle Prairie Dog Colony/Potable Burrowing Owl Net 0 gold Fngl. Raptor Nest Observed by ERO Bald Eagle Nest Site Buffer Roost Site wing Concentration 0 BoW Eagle Winter Forego Area Thornton Water Project Figure 5 8 Wildlife n IWP Corridor Q Study Buffer Weld County Permit Application I Veld County Permit Application 2 Weld County Permit Application 3 Caroler County Permit Application 1 Roptor Nest Observed by FRO Bald Eagle Nest Site Butler Bald Eagle Roos* Site QPrairie Dog Colony/Rossubte Burrowing Owl Ned Bold Eagle Winter Concentration Area aBold Eagle Winter Forage Area Preble's Meadow lumping Movie ElEvaluated - Not Trapped ntrapped Not found 0 250 500 0 Feat *KS br Gly of honor file: 5241 Figure 51011 mid !aHI ltw1s II. 201) ERQ EeD Locsios :se moo I.noge: C Gargle 20151.30A PWP Thornton Water Project n TWP Corridor (= Study Butler d County Permit Applicotln I I aald County Permit Appriration Weld County Permit Application l CIlatimer County Permit Application 1 Raptor Nest Observed by ERO Bold Eagle Ned SIN Buffer Peebles Meadow Jumping Mouse Bald Eagle Roost Site IIIEvaluated . Not Trapped Q^ Prairie Dog Colony/Possible Burrowing Orel We 0 Bald Eagle Welty Concentration Area f Bald Eagle Winter Forage ArgoTrapped - Not Found 11 Figure 5.9 Wildlife ^ex:ee lot: firy el Thanlgn rrte52114w5 1041,mxildpi) }arts 11, 2011 ERQ C 250 500 1 Feet Ara -err C Coong" 70 5 ...SawNA s i • it ' • .fiat < 1 \• - ft• Ili.frs r UFt s E on g , Ti s. ` Ile.. it • ��• r� •� ' f eel , • Ir i ■ 17.1 ,► r . {• I i -Y - • rte , . �^ • ?.e t P�. 1-• .e. ` n* I • .'� r - P , rt i I • 1 Mrdr • li I F A' N f • t V • V Pl.,111%..; 7M 1. - T i • 1 . „, /rich J r ..X,•, .. Y fir• (C d. ,-. 1, a, 4 + 1 ..-.. 1. ,, Id Thornton Water Project Figure 5.10 Wildlife Pepotel lot. Gryol Mantra r��\ Flit Sill Coate 5 l pl l m��.•// ld laHl jj�� ....,.1. VI CIO Ina -..s:re = Bold Eagle Nest Site Buffer Robles Meadow Jumping Mouse IWP Corridor fi Raptor Nest Observed by ERO lMl Study Buffer Bold Eagle Roost Site • Evaluated Not Trapped Weld Permit I NOS Prairie Dog Colony/Potable Burrowing Owl Nest County Application Appl' Bold Eagle wince Concentration Area Mold County Parrett Application 2 a Bold Eagle Writer Forage Area 0 Yapped Not Found Weld County Permit Application 3 — Lorimer County Permit Application 1 0 250 500 0 ._Feet Aro 'aga, CCoo9'r 7"5-S-11 M' • is• , t Ile-- lrtii . R►- S .It __.- i • ' V •4 • A .. � �_ . Ile III iI. P 1 ti - ell 1 d I I/ 1 1 e e i• � • • . t 0 I se .. le • "t I it • be t1•t 1 y T t sated Thornton = Water Project !WP Corridor `� Raptor Nest Observed by ERO Bold Eagle Neu Site Buffer Study Buffer Bold Eagle Roca Site Prab la's Meadow lumping Moues Figure5.1 1 Wildlife RTpOtttl fit: Gry & Thornton FRO Mt 5111 f 9n S t0<l.trud �d lfl iK` Ot ..., i 1, i0l) EC 4....e. Zaa 0. Prairie Dog Colony/Possible gu•ro...ng Owl Ned Evaluated Not Tropp ad Weld County Permit • Appcetiw+ 1�} gold Eagle Winter Cor can+ra+on Area - Weld County Permit Application 1 0 Bold Eagle Winter Forage Area 0 Trapped Not Found Weld County PermA Applcation 3 Lorimer County Permit Application 1 750 500 �Z� Aer •a s\ta: i ♦ 1 1� 3 4 C G r t�tt, 4 n n n O - w -- 4j aj ( e 01',-. ' C 4 st ♦ N I i 1 r i I • — 7 ' pe7A i o... ,,. .. __ ywomil•Ols. ...._ rim% ..„,..., r. . ♦ .. .i } cam' :? : •rr� Thornton Water Project Figure 5.12 Q rWP Corridor Bold Eagle Nest SitsBuffer Piabla t Meadow lumping Mouse Wildlife Raptor Nast Observed by ERO iliM Study Buffer Bold Eagle Roost Site 0 Evaluated Not Trapped Weld County Permit 1 En Proirie Dog Colony/Posvble Burrowing Owl Nest � Application Bald Engle winter Coacenaation Arad e Trapped Found Not inVald County Permit Application 2 0 Bald Eagle Witter Forage Area Weld County Permit Application 3 Tarim or County Permit Application I POW* iItt City %WI00 0 250 500 a Rk5NI F 5lollf id,„, r4 nitre Fee, Deaner H, 7011 LC Ana ♦. 7 A., O ...gg,. [Mr"q-' t - .$'.4 W Thornton Water Project [-j IWP Corridor n. Bald Engle Nest Site Buffer `f Raptor Nest Observed by FRO =Study Buffet Bold Eagle Roost Site Weld County Puma AppiKotipn I =I Prairie Dog Colony/Pasoble Burrowing Owl Nest Bold (ogle Witter Concentration flweld County Permit Appl.coton 7 0 Bold Eagle winter Forage Area Wald County Permit Applicators 3 alarm or County Permit Application I %able s Meadow lumping Mouse OEvaluated Not cropped Area r l l hopped Not Found 0 250 500 —Fwr Figure 5 13 Wildlife ?awed k Gtyot Thornton 5241 figure S 1041 nod IdHI Der* U. 2011 E11O TWP Condor CI Study Buffer County Permit Application 1 b County Penna Application 2 Weld County Parma Application 3 =Lorimer County Permit Application 1 • Raptor Ned Observed by ERO Bald Eagle Neat Site Buffer Aabla a Meadow lumping Ma Bald Eagle Rood Site ail Evaluated - Not Trapped =Prairie Dog Colony/Pewb4 Burrowing Owl Nest 0 Bald Eagle Waster Concentration Ma DBold Eagle Winter Forage Arlo 1 trapped Not Found .� . •.'4 -• +. -` Q k e TJ l N Gi t 4 ,•. r . .r c••• •��: �r � � f 11 to f ` Al 5. t r,�R3 , ..4 f • • 3 m 7 r f • 1. tix 1 IP *' 24. V . ,Mk • i • h - c _ e. s Y 7 Red tailed Hawk +e/ , . �!`.N f • • -* rr c • ' �o I• Raptor Hest is,A. • } r I t e Cane eN R 1 % .� i r 4 • • Thornton Water Project Figure 5.15 Wildlife :"RXICRIbr:GlyolMonica me. 5241 tigute S 1041.rtod pH) Ot�Rma H, 2011 •_ec t, a :a t TWP Condor �'•�., Bald Eagle Nast Site Buffer Prebla s Meadow Jumping Mouse Raptor Nest Observed by ENO al♦ Study Buffer Bald Eagle Rood Site • E+oluoted Trapped '. ,<Weld County P Appncaton 1 0 P.a,ry Dog Colony;%tbble BNrrowH,g Owl Nets Not ntot Bold Engle Winter Ca+rnntratron Ana Illakeb County Permit Application 7 01 Bald Eagle Writer Forage Area Wald County Perms Application 3 0 lraPpod Not Found I Latimer County Permit Application I 0 750 500 0 Foe' a moan C Coayngnl ji TWP Corridor ® Raptor Nest Observed by ERO Bald Eagle Nest Site Buffer Prates Meadow Jumping Mouse Q Study Buffer Bold Eagle Roost Site ® Evaluated • Not Trapped .J old County Permit home Dog Colony/Potable Burrowing Owl Nest Application on I fl Bald Eagle Winter Concentration Area D Trapped • Not Found Id County Permit Application 2 a Bold Eagle Writer Forego Area Weld County Permit Application 3 =Lorimer County Permit Application 1 �` •%17.2.,...• s, w , ' 1 / .� # • i 'I ;� ��`� •/ yr I I I _� �� d (- .,•, � %• i 'V 1 y ( 9 10 • 01 i ., r?,; e• If 21 ►.{ • • f1 ►VAres ternns eerarsirr-:Tc- rrzsr�.rr/sxrr .s. •( vac eirtaiVe .3- • J eft-e-yw� \ \`\ • ��1YJyi�� ..! 1 ` r te,. s ?� � f ' • r r !1}'i , - �r ,g".1/41 -90t:7-4.04 • o. ►wr,,,•E - $ 9,lice S l S, 19 ` i I , jt��✓i�"f i I t. ice._.%! CP Uri •� VIC ''',.. 6. �t( .C -Ci1� t-. :sA v sti'e�V • 11 r, `AI f It ea. t� Sag 1,4 Y 1 III bic- .. le " f'�`,s . _ n:?i# "� . 1 )jQ� s' / Thornton Water Project Figure 5.17 NIP Corridor ® Raptor Nest Observed by ERO Bald Eagle Neal Sib Buller Prattle's lumping Maur s Meadow lum 1 it P Bald Eagle Roost Site Evaluated Not hopped Wildlife on Study Buffer Permit WM Prauia Dap Colony/Possible Burrorinp Owl 1 Nest b Bow Eagle wrist concentretion - Weld County Application Nee 0 ald County Mme Application 2 0 Bald Eagle Welt' Forego Trapped - Not Found Area Weld County Permit Application 3 ami Lorimer County Permit Apprication 1 250 50016), Gly of d �' nt�trco i ER‘`) ;k524IF'ca51pd1.IS!dHl _ Feet Derby II, lull Esci...r._» Ar-or "'NM C .-oprc W' 5 -5 -a v. - Thornton Water Project n TWP Corridor Q Study Buffer 'kId County Permit Anttation I id County Permit Application 2 W.Id County Permit Application 3 flor:nor County Permit Application I Raptor Nest Observed by ERO Bold Eagle Ned Site Buffer hebls s Meadow lumping Mouse Bald Eagle Roost Site ® Evaluated - Not Trapped r. hairie Dog Colony/Possible Burrowing Owl Ned 0 Bald Eagle Winter Concentration An. Trapped Not Found D Bald Eagle winter Forage Area [1 t Flab .r 1+44 C. 1 ` ' '� S --__%, J � r � I? i • ioe •• • .. • .". •� k' i y •� . _ f yam•. • ii 0 �� 't. 1 r tX `:;;iiI ar Y I . 1. r J i yep' �i i - c. t " i . / 1 .y illiwr- _ . - lookt ' • 74 if,Th vi. • i. �... t t • t •' ..• t V r _�` �~ . _ �•W�e it - - -- • _ . ,• f _04• , • • • _ • _ ' _ r . 1., • - a 11 . is • 4A•► • r p. •• . • _ .- • • Thornton Water Project Figure 5.19 Wildlife q�� bt ,Sty Ot 111{Pnlon i-5741fiche5lalt.nodINN! pert* ! i. nil :A.,-... �l/ 1'I {` C) r,->_ = TW P Corridor Bald Eagle Nest Site Buffer Pablo %Meadow lumping Mouse Raptor Nest Observed by ERO Mil Study Buffer Bold Eagle Roost Site II Evaluated Not trapped Weld County Permit Application I MS PrairieDog Colony Pbss.ble Burrowing Owl Ned a Bob &eqts Writer concentration Area Q '✓eld County Permit Application 2 a Bold Eagle Winter Forage Area a 'rapped - Not Found Weld County Permit Application 3 fllarimer County Permit Application l 0 250 500 .Feet Ara •rope C Capr g^ 76' 5 _S: A NA. • 7 acomopl fill r r ii,4 e r ' �S DIY . _ • it r _ _ . JP b - _-- a nt C:tri r" • {r t y[ ~ I 1 f' i ..+ tar r "9 c n I� C 7 • .• • `' • l • t• yx. • JA ` •�. l r ` h r 4 , r -' Tr -�, re -( - - arse le 1 1 r •+r+wa�es* ! . . r ^s_ 111 Thornton Water Project Figure 5.20 Wildlife (l Mpmd to; Goy ot%mien i J��s"� h�it� �51y1_�1 Firre 5 i04 End [dINI 1 ..Crete 1, 7011 to bn-m:••• Mill TWP Corridor ,9 Raptor Nest Observed by Etc Bald Eagle New Site Buffer Ptebles Meodow Jumping Mouse I= Study Butler Bold Eagle Roost Site • [valuated Not trapped County Permit 1 MIN Prairie Dog Colony/Possible Burrowonq Owl Nest A Weld Application Bald (ogle Winter Concentration Area •..„ Count' Perm -0 Application 7 >O Bold Eagle Winter Forage Area Weld County Permit Application 3 O Trapped Not Found Lorimer County Permit Application 1 0 250 500 0 Fee' Ica al noge: C Coorg^ x 5 L -5-:A NA' ii, I p - r dM P` t .. .ham' 41/1 ; li - •• • -. 1 . , c, -.7 } , 4-- w i - .. { 1p, ! Laval" • c I SP-- yC r �o410 za • ".ice il . 1 ,� , te ff ve' r ti. • �a/i it %r. • ''r P s li,• :.-._,J t� •• t it • i .., . J' I C. ,E1' • , r - ..- Thornton water Project Figure 5.21 Wildlife f:Thornton b. 01 oI 1� fl 5711 5 I041 nod (dlH lane 7011 t • �� C •..x „ I♦ TWP Corridor • Bald Eagle Nest Site Buffer finable. Meadow Jumping Mouse Raptor Nest Observed p by ERO = Study Buffer Bold Eagle Roost Site [] Evaluated Not Trapped Wald County Permd Application 1 Ire Prairie Dog Colony/Possible Burrowing Owl Nest - Bold Eagle winter Concentration • Area Wald County Prrmd Application 2 a Bald Eagle W rater Forage Area Weld County Permit Application 3 Larim er County Permit Appltcation IPlacid C • 250 Trapped Not Found 500 a � re ' • i se IWYX •� • 4 to ! , v,*. .. ,„t. .y� j, r / Hill and . Brush ,t , mig• 11 nit46 I ? 1 r. - ens • ,.. • ti ` • .' /v .r 1t; , • i it _ • ` ! tt y• . - -Yr i ,, CA •y !4 NL s4 • f f F~• � . i tiapo-M a• el to • a a• .r- ', ' ^ .19: '. • A. 1 r � ITAT., �w,t •e Y l' 7�Jt i. / 4.:.i• r , , • 4 t•P �4 .' f r i. / ' ti' Thornton Water Project Application Applimti Application Permit Bald Eagle Ned Sit. Buffer Raptor Nest Observed by ERO Bald Eagle RocaSiteWildlife Prairie Dog Cobny/RtlBorrowing Owl N e se urrowng wed 0 Bald Eagle wnNr ConarNration 0 Bold Eagle Winter Forage Area Preble& Meadow Ill Evaluated Arearn ❑e Trapped 0 250 500 Jumping Mouse Not Trapped Not Found 0 Figure 5.22 N,'X'!C b' .'Y LI iFvinion 't S2C si,re �, ! ��/.: 04 ruc .c.. BQ.'J = TWP Corridor I= Study Baer W. County Permit W County Permit 1 NOS on 2 3 Application I Weld County Permit Lorimer County d mop. L Caorr9} k 5Li ... ... ti...- '+ • . .; :4i ............. Yet .,,... -1 . ' - - al �S1 � 4 ( :I • 0 `II q-• - Res - - -•_'i;ril eempraL i:='L'.f'�'.�`A'.Air'.aawwuw..vrarns.e:an..Evo;ro6°'.ac •:,)• ,-• ,.. s ' 411:40 �'� ' •••to .. - �, �. 12s S 2 fi, e S r✓ 't ,t,, if w t r 41 •girt;I. t. �_ .`,.t. S t . • o • ,. •r .. ,,41 • j ' ,w-.en440 4-' I ' � 4 .-S 'o —' �, • .'� �1 y i . • � •i ,. - _ter. Tn 1 i I I - • c2., • C. 1 Ile Red-tailed Hawk On iii -- 4. * 4 t. _. r - I r'.s 3 Thornton Water Project Figure 5.23 BM TWP Condo, Bald Eagle Nest Site Buffer !Fable's Meadow lumping Moues a Raptor Nest Marred by EltO Wildlife Marre — Study Butlr Bald Eagle Roof Site bopped RS Aoki. Dog Cotony/PossibM Bw.awi+g Owl Mad Evaluated - Not W County Permit Application I BOW Engle wrier Cmrnsrafion Ana 0 Id County Pe.me Application 7 la Bold Eagle Winter Forage Area Trapped - Not Found Weld County Permit Application 3 alarimr County Permit Application 1 0 tot: r °Ioo 250 500CI ';t 5241 fiqu,R s tat.mld IdMI 1'.R6.� I�� LC b.a<., .5p feet Norte 11. 2011 Thornton Water Project Figure 5.24 Wildlife I i TWP Condor (=Study Buffer Bold Eagle Roost Site EI Evoluoted - Not Trapped {:_ Wald County Permit Appti[otwn 1 QAanie Dog Colony'W svble Bunowtng Owl Nest 1) Bold Engle Winter Concentration Arep O Trapped Not Found Weld County Permit Application 7 0 Bald Eagle venter Forage Area Weld County Parma Application 3 alarime• County Permit Application I Raptor Nest Observed by ERO Hold Eagle Nest Site Buffer Preblo s Meadow lumping Mouse 0 250 500 feet Aga* tr. Oty of 1hmmmn Fit 5241 rape S 1O41.tRd IdHI DKr* t 1, 2011 ER4) Iles -re : r_ Ave d Doge: C Cooyrgrt X I S a lt Thornton Water Project nTWP Corridor =Study Buller Weld County Permit Application I Meld County Perron Application 2 Weld County Permit Application 3 toriner County Permit Application I r Raptor Not Observed by ERO INS Bald Eagle Nast Site Butter Bold Eagle Roost Site Prairie Dog Colony/Possible Burrowing Owl Nee Bald Eagle winter Concentration Area aBold Eagle wins. Forage Area Preble's Meadow lumping Mouse O Evaluated Not Trapped e❑ Trapped Not Found 500 e Figure 5.25 Wildlife aerotd bt: Gry of THomien I ; R() e Sill Fgun S I W l.nud (dH tine 2017 Ele Liz - 0 250 Fee' Ara nage. C Cooyry"r 70'5 .5 'A NA Figure 5 26 Wildlife Thornton Water Project MTWP Corridor Q Study Buffer Weld County Petard Application 1 0 Prairie Dog Colony/!bumble Burrowing Owl Ned et.gold Eagle Winter Concentration Area T''1 Trapped Not Found aWeld County Permit Application 7 0 Bold Eagle writer Forage Area I l Weld County Permit Application 3 Olprimar County Permit Application I ® Raptor Nast Observed by ERO Bald Eagle Nest Site Buffer Preble s Meadow lumping Mouse Bold Eagle Roost Site a Evaluated - Not Trapped 0 250 500 oF..t (III Pipmad br. OP, of Womb) F k 5141 Iigw, 5 I Did I .erod jdlH I DKr* 1!r 201) ERQ EC era --n An mtgs. t Coat gm 7015 USDA NMP Cl TNT Corridor Q Study Buffer litdd County Permit Application I County Permit Application 2 Wald County Permit Application 3 °Lorimer County Permit Application 1 Raptor Nest Observed by ERO Sold Eagle Sold Eagle Prairie Dog Colony/Possible Summing Owl Ned 0 Bak( Eagle Nest Situ Suffer Rood Site winter Concentration 0 Bald Eagle Winter Forage Areo --I., x ritilils1`...........i......17m.....„..........7.:!...::".„:":..._44,:ffjk... :sic.::::::::::::::.nfeb Figure 5.27 Prebhf Meadow lumping Meuse Wildlife ® Evaluated Not Trapped Ana 1''1 I I trapped - Not Feu ra n IWP Corridor Roplor Nost Observed by ERO Bold Eagle Nest Site Buffer Problos Moat Q Study Buffer Bald Eagle Roost Site O fvoluatr sWeld County Permit ,cation I =Prairie Dog Colony/Possible Burrowing Owl Neu Application Bald Eagle Winter Concentration Area rt II Trapped �VNId County Permit Applicator 1 0 Bold Eagle Winter Porage Area Weld County Permit Application 3 =Lorimer County Permit Application I M o* Toga C Coons 7015 JS3A •vA Thornton Water Project (—j IWP Condor Q Study Buffer :Weld County firma Application I -geld County firma Application 2 Weld County P.rma Application 3 Latimer County Parma Application I ® Raptor Nest Observed by ERO Bold Eagle Nest Site Buffer Feeble s Meadow lumping Mouse mil Bold Eagle Roost Site © Evaluated Not Tropped Name Dog Colony/Possible Burrowing Owl Nest twat-a.Bold Eagle Weter Concentration Area hopped Not Found 0 Bold Eagle Winter Forage Area 1 0 250 500 Feet Figure 5.29 Wildlife exted be Gly of Totmon Ric $241 figure 5 l W l.nd IdHl Oun 11.1011 E le v� b og. C Covy gr.' 2C 5 .-S_ u - Thornton Water Project TVIP Corr,dar (=Study Buffer .Weld County Pound Application 1 Vold County Permit Application 2 Weld County Permit Application 3 alorimer County Permit Application I ® Raptor Nest Observed by ERO Pran.e Dog Colony/Possible Burrowing Owl Nest rt aitch e Sold Eagle Nest Site Buffer Bold Eagle Roost Site Sold Eagle Winter Concentration Aceo 0 Bold Eagle Winner Forage Atea Preble's Meadow lumping Mouse ElEvaluated Not Trapped ❑e hopped Not Found V. :ar.oass rr -+e +S Figure 5.30 Wildlife 4v..r ^•aga c Cooyrq+• 2015 L$SCJA wua ERO Gram -re ir: Thornton Water Project n IWP Corridor Q Study Rutter iilr^eld County Permit Application 1 old County Pbmi Application 2 Weld County Permit Application 3 OEatimer County Permit Application I ® Raptor Nast Observed by ERO �Qf Bald Eagle Nest Site Butler Bald Eagle Roost Site Prairie Dog Colony,/Pbsable Burrowing Owl Nee ) Bold Eng a Bold Cog le Winter Concentration Am le Witter Forage Area Preble s Meadow lumping Mouse Evaluated Not Trapped 0 Trapped Not Found 0 250 500 0 'Frei Figure 5.31 Wildlife Ro rSd nor: Ory d1 Thornton F't slit Flute S 1041 rind (dial Dearest :1,2011 ERQ E -IC tie-z..r_ Ara "-toe. C 20 5 ..S: A'a •- .._ i IL . ...".. ,-...: I, ,./. , —T . I • tits"' 1, 4-11" . 4...: . . ilk., Fes_, • •. t `r �• 1 4 ,4 I s , i' e y i `� . • ` e 1 ,. • ,. 1 rl T� r1 - F • ' ,r/ 1 .- - -'v'N �,' •i• - _ fir- - it • 1 y_. ....sA.- w (- .. n ea l.f ' • T n. C.‘ 4N y • - • - - • -a� II- • .,'.l t... Thornton Water Project Figure 5.32 Wildlife JOE NIPS JOal Thornton1,J1\.4 2 rat S741 F uM S 1 0I I.mdItIIMI In 11, 7'011 or) Are -..:.-a IMP IWP Corridor ® Bold Eagle Noss Site Buffer Preble's Meadow Jumping Moues Raptor Nest Observed by ERO = Study Buffer Bald Eagle Roost Site ■ Evaluated Not Trapped Meld d County Permit O Panne Dog ColonyrPbssON Burrowing Owl Nest Area Application 1 Bold Eagle Winkle C ncentr lion �M/eld County Permit Application 7 0 Bold Eagle Writer Forage Area a Not Found Trapped - Weld County Permit Application 3 4larimer County PermApplication I 0 250 500 e Pee' •e a ••age- c Coarg`• Y'5 .,S"A NA i I iris 'ti.1A'IJE-TIp sva •••WYe�M. ss Thornton Water Project M TWP Corridor Bold Eagle Nest Site Buffer Proble s Meadow lumping Mouse all Raptor Nest Observed by ERO Wildlife =Study Buffer Bold Eagle Roost Site n Evaluated Not Trapped 'Weld County Permit Prairie Clog Colony: Possible Bur -owing Owl Nast Appl.cerien I b Bald Eagle Writer Concentration Area n Trapped Nor covnd �WaW County Permit Application 2 a Bold Eagle Winter Forage Area Weld County Permit Application 3 alarimer County Permit Application I r N . r• r•arr i �a far, Raptor Figure 513 SOS 0 0 mewled for. Cry of Thornton fik 5241 10045 IOC fold (d11j Deane l 1.1011 to RA tao era w omope C Capra" 2C'5 -SSA sA Thornton Water Project n TWP Corridor =Study Buffer Weld County Permit Application I ellWeld County Permit Application 2 Weld County Permit Application 3 ®lorimor County Permit Application I ® Raptor Nest Observed by ERO Bold Eagle Neel Sr. &Jar Bold Eagle Roost Site Planie Dog Colony/Potable Burrowing Owl Nest Bold Eaglo Writer Concentration Area rn Trapped Not Found 0 Bold Eagle Winter Forage Area Preblo s Meadow lumping Mouse M❑ Evaluated Not Trooped 250 500 0 —'Feet Figure 5.34 Wildlife %put bf: Gly of Tflorotpt rlc S?41 tigua 51041 nod (dH J Narks I'. ?011 ER P) ESC i.e..-r.:ass Aa•oi irneg.: C CopyngS 2015 USDA NA° "a i liffat'fro }E. S ¢a • 0 r. 7 Thornton Water Project r ma ;M.MnvSraAaY..rrrr r v4 Figure 5.35 Wildlife n IWP Corridor Bold Eagle Nest Site Buffer Preble's Meadow lumping Mouse ® Raptor Nast Observed by ERO Q Study Buffer Bald Eagle Roost Site Evaluated Not !rapped Weld County Permit Application I soar ►rowre Dog Colony/Peseble Burrowing Owl Meg n Bold Eagle winter Concentration Area I''I - Veld County Permit Apprrcet;en 2 0 Bald Eagle Wetter Forage Area I 1 Trapped - Not Found Weld County Permit Application 3 ®Lorimer County Permit Application 1 0 250 500 0 Foot car w =:: GI? 01 Thornton Nt 5241 Fiqum 51041.rS (dm] karoer n, 11RC.) 4.4 /✓.a -nogg C Copryn 73'5 . S.:A NA'° s Vic:. > en - • ;: I ,,, rig" - clyl, � �f ;, s , / / /i / , ltch 7 ", -.. i cIS Jc Red-tailed Hawk r .. et .. r ' :pit - I gie s ir�• - s e;�-� ; ,, r 4r. IA . • I1111r N. • 1 f % r r .- t _ .� q3 e `• • 'a "` 4. trTi;I • • _^ .n All • i.. • -. Thornton Water Project Figure 5.36 NIP Corr dot Bold Eagle Nest Site Buffer Prablo s Meadow Jumping Mouse Wildlife Raptor Nast Observed by ERO ti Study Buffer Bold Eagle Roost Site • Evaluated Not Trapped Weld County Permit I 0 Prairie Dog Colony/Fbssble Burrowing Owl Nest et Application Bold Eagle Wetter Concentration Area iWald County Permit Application 2 0 Bold Eagle Winter Forage Area me Li Trapped ' Not Found Weld County Permit Application 3 OlEarirner County Permit Application I 0 250 500fa 'te0atd bl: Gel at Manton ERC) n - 5141 Figure S loll etli WI Feat tecetset 11,1011 min-. ., -. -. Aso 'rage t Copter 2.2. 5 _S A'.A Thornton Water Proiect Figure 5.37 Wildlife 0 rwP Corridor Q Study Buffer eitWeld County Permit Applicator 1 =Weld County Permit Application I Weld County Permit Applicator 3 Lorimer County Permit Application 1 a Alternative Pump Station Location Bold Eagle Ned Site Buffer Ptebles Meadow lumping Mouse Raptor Nest Observed by ERO Bald Eagle Rood Site El Evaluated Not Trapped Prove Dog Colony/Potable Burrowing Owl Ned n Bald Eagle Winter Concentration Area trapped Not Found CO Bold Eagle Winter Eoroge Area ! I 0 750 500 ID Fee, tPlxl o bt: Gry of Thornton c* 5241 figure 51041.nd (dill Darts 11, 2011 1.1R r) M o wage. C Coorg # 2C'S A1&'' Thornton Water Project El IWP Corridor ® Raptor Nest Obser.ed by ERO Bold Eagle Nest Site Buffer Prabla's Meadow lumping Mouse Q Study Buffer Bold Eagle Rood Site Route Dog Colony/Possible Burrowing Owl Nest ❑ Palpated Not Troppad Weld County Permit Application I Bold Eagle winter Concentration Area D Trapped • Not Found Weld County Permit Application 2 ep Bold Eagle Welter Forage Area Weld County Permit Application 3 liLarimer County Permit Application I 250 500 r Feet Figure 5.38 Wildlife Aeggad bt. Cry of Ihanto, Flt 5741 role 51041.mt IdIBj Daunts 11.7011 tee ea -in css 1 z 4 1 2 see,47 r'.:. rndradd jar ~rye?. nTWP Corridor (=Study Buffer Weld County Permit Applcation I arold County Permit Application 2 Weld County Permit Application 3 11c flarimer County Permit Application Thornton Water Project Figure 5.39 Wildlife Alternative Pump Station Location • Raptor Nest Observed by ENO Bold Eagle Nest Site Butler Bold Eagle Roost Site Prabtes Meadow lumping Mouse ®horn Dog Colony/Pcabin Burrowing Owl Nate Weiler t Evaluated Not 'rapped Lea Bold Eagle WeiConcentration Area l i bBold Eagle Winter Farago Also 1roppod Not Found PrEcted bat: Gry of Thornton sir 524) hg,ne s 04!.mld [cIthi Ottaveet 1 1,2011 FRQ 0 250 500 Feet tie n.n:e_ M p Tote C Zoo79'e 20 5 ..STA u> • iralirv�a.Lego / .o air 7111 - - I if iii i - t 4,it I. _ ant get Y rio`� eta M'iv" t nit two To iJ�T� el$!4+/f r r-� S / --rJy�/��, le. /y Ii r.✓gi� •i I __._.___ �. •.. le _ �_ �,�. - .. nc.e� ___-,,,,,a0. 44 py �/�•y. �. `t ys/�.IF.i.49 �7�J,��Algn / / /ice ``JJ``/ ` / r /U4:.u.I ' I 4�— i• • • _ awl- �. •• fs: . ... .• •r ....„ ,r . i�r t •, - r e s -' L.i � t t. err/' � ' • + - - Thornton Water Project Figure 5.40 Wildlife *wed tr. my of Nunn'C' iilr. 5211 figure 51041.riud [dill!� Omitbt H. 2011 E7O✓ka :r ::/•• my TWP Corridor ® Bold Eagle Nest Site Buffer Praia's Meadow Jumping Mauro Ropier Nast Observed by E0.0 MN Shady Buffs, Bold Eagle Rood Sae ® Evaluated Net Trapped id County Parma I a • Prairie Dag Colony/Pewblo Burrowing awr Nee es.Bold ii App44Oton Eagle writer Concentration Area W County Permit❑l Trapped - Net Found Application 2 Bold Eagle winter Forage Nea Weld County Permit Application 3 tow Latimer County Permit Application t 0 250 S00 l Feet As o , •naga: C Coon" 0 HT;' -. 1 .1" I It ALCI i • lik . R.:.-: -=c.- eA. t. - t -�.. �i k nom. Yf i1 I 1 • { •u o -_-¢-� •��-..w • H QXT70) - _— - ` w ^7M �w�..h:. - at + .- Jl, • ilk+ A ff I r l. JI, • __ Red-tailed Hawk .- - ..-.-.• S Thornton EN Water Project IWP Corridor Bald Eagle Nest Site Buller Preble s Meadow lumping Mouse Figure 5.41 Wildlife Mewed iv. Raptor Nest Observed by E RO Study Buffer Bald Eagle Roost Site El Evaluated Not Trapped Q Pra n.e Dog Coony/4bsab4 Burrawng Owf tJett Id County hrmi• Application t 0 Bold Eagle Winter Concentration Areape old County Perms Application 2 CP Bald Eogle Winter Forage Area Weld County Permit Application 3 lig • Trapped - Not Found Lorimer County Permit Application I Cry DI Ponta° Fit 524 'cure 51041.md ldlll �r il/ Dowerii.2011•a;k-a- - 0 250 500 0 IFeet A . o ...cgs C Cooytyt. 20! 5 Thornton Water Project Figure 5.42 Wildlife n TWP Condor Q Study Buffer aid County Permit Application 1 Id County Permit Application 2 Weld County Permit Application 3 Clarin.r County Permit Application 1 BO! Raptor Net Observed by ERO Bold Eagle Nest Sit Buffer Pfebles Meadow lumping Mouse Bold Eagle Roost Site Evaluated - Nol Trapped Prairie Dog Cobny/Peuible Burrowing Owl Ned L Bold Eagle Winter Concentration Area II Trapped NM Pound CO Bold Eagle Winer Forage Area - ERG) 0 250 500 leer A.r.M lr.,ag.: 0 cmrcN 20' 5 :S')A .A am •. it___ • - A 4 r O F ,. f . _ • -_�+►�e.......—_ 474 r. • ..... .. ....• ,. _....-hei. ___. ,, __ T• ‘ - 1 .j r. •'te--aea�- -- .�"r _ Me ' t 1 r 7r, 1 r_ .. LL cr ' v' V 6. - •' b t II j.Ir.. 1 4 �[ rM y 11V• � ,II pp - ice` • • „ • d{ •.r .?•f �._-� 'llil Thornton Water Project Figure 5.43 Wildlife 'iiPcred bo Ory of fhanron ? ;;k 5141 Elgin I011.rrod [dIMj 1. 41 "I. 2� _\J c) on me TWP Corridor Raptor Nast Observed by FRO Bold Eagle Nest Site Buffer Study Buffer Bald Eagle Roost Site Problo 0 s Moodow lumping Mouse Evaluated Not Trapped loli PrairPrairiePb Burn Dog Colony/Buring Owl Ned Meld Veld County Perms Application 1 County Permit Application 2 Wald County Permit Application 3 ssrble awing 13 gold (ogle water Conunnot:on Area O a Bold Eagle winter Foroge Area a "upped Not Found Lorimer County Permit Application 1 0 250 500 0 �� Feet karts XII st.a - n . Y r. a ;it\ - Y 1 .:-. 4t = C • ,.. t . • a • ' O Or i il �.• w n • - •• - _ - I K. re ' f /r rte. I. i -. • . . t • 4 L r • :. l } /" it \ y7 1. VIDP +r ��. • -Al + Red-tailed Hawk _ O 1,-.... " ` . ,r 1 •`� 1 it Y J ; ,r _ i • — I .. _ ._vh .. TTa_ ` • e - Thornton Water Project Figure 5.44 Wildlife Pte(CS bo Gty ci 1llotnton ;le 5741 Ipute S 1011 rind [dH I )seeps 71. FARO IM TWP Condor Bold Eagle Nett Site Buffer Prebles Meadow Jumping Mouse Raptor Nest Observed by ERO liMI Study Buffer Bold Eagle Roost Site ti Not bopped 'Weld County Permit llo:tion 1 App K l Prairie Dog Colony7Petdbie Burrowing Owl NovEvaluated - Bold [ogle winter Conoanhotlon Area Id County Permit• Application 2 a Bald [ogle writer Forage Area Trapped Not Found Weld County Permit Application 3 CEarimw County Permit Application I o ;so Sea0 Z'•ee! 7017 ilCIra •-n:Ira ai In oga C C00r'" iC 5 5:A ti ra.....••• a...a.aa r s r a♦sisrs.srsrtta•.srs• SWUM n rwP Corridor Q Study Buffer Bald Eagle Roost Site ■ Id County Permit ® Prairie Dog Colony; Possible Burrowing Owl Ned ❑ Evaluated Not Trapped Application r 0 Bold Eagle Welty Concentration one (� Wald County Permit Appicotion 7 0 Bold Eagle Welter wage A_.ea 1 I Trapped - Not Found Weld County Permit Application 3 OEorimw County Permit Application I Thornton Water Project Raptor Nest Observed by IRO Bold Eagle Nest Site Buffer Robles Meadow lumping Mouse Figure 5.45 Wildlife rtexptep ti. GI, of molmgn ;It 5741 'tun 5tail mid tt tj Derby' 1, X117 ERQ 0 250 500 Feet te0 tOU% -n , Sao mega. C Cooyrg'+ X;5 s.t, 3 Figure 5.46 Wildlife Thornton Water Project Q TWP Corridor = Study Buffer W County Permit Application I Id County Permit Application 2 Weld County Permit Application 1 Interim's- County Permit Application I ® Raptor Nest Observed by ERO Bald Eagle Nazi Site Buffer Preblis Meadow Jumping Mouse Bold Eagle Roost Site ® Evaluated - Not Trapped Q Praire Dog Colony/Possible Burrowng Owl Ned etBald Eagle Winter Concentration Area L Bald Eagle winter Forage Argo O TroPped Not Found 0 250 500 ID feel Pt wog fm: Lq of !batman fife 5241 Figure S 1041 mid (Si Nat i 1, 2012 141RO etZ n Aso d linage a CoorpS 2015 .bA %& a, .P h,- ,u. .., -, ' tit„ . �� Y , i14yt• t Li ter" r 'r _ �rt. ib -. It:f„ , r b r am j' t. kL',•:9 Cal. ..e• ,e •• • 3 1.4 • 1• f• • i ' rie • • I�e `sy t, ./ _ • IllIttlI • _� W f ' _ , . 1.f T A I ,4444 �' •. y • 1, ` • tr:c3 Gaze yn • L LL • ib te .. _ 9 �.. f•' i a� ,iiii , a t Thornton Water Project IWP Corridor• Bald Eagle Nett Site Butler Pr.ble'• Meadow lumping Meow Figure 5.47 Wildlife Pep* bt: Gry DI Thornton sic 5241 lgmed KIM jtcrs I I, 2011 k Ili u? M..., :, Raptor Nest Observed by ERO MI SNdy Buffer Bald Eagle Rood Site _ 0 Evaluated Not trapped ld County Permit App 1 ire Promo Dog Colony/Possible Burrowing O s4 Nest ) Bold Eagi. W:tr Conantro•ion Area • (anon Id County Permit Application 2 Y Bald Eagle Winter Forage Area Weld County Purina Application 3 • Trapped - Not Found ow Lorimer County Permit Application 1 ApRA 250 500 a Aral mogr C Thornton Water Project Figure 5.48 Wildlife TW P Condor Q Study Buffer old County Permit Application 1 Id County Permit Application 7 Weld County Permit Application 3 °Lorimar County Permit AppZcolion 1 Raptor Nest Observed by ENO Bold Eagle Nest Site Butter Nobles Meadow Jumping Mouse Bold Eagle Roost Site Evaluated - Not Trapped Q Prairie Dog Colony/Possible Burrowing Owl Net 0 Bold Eagle Willer Concentration Area a Not Found Trapped Bold Eagle WWitterag Fore Arse a - 0 250 5017 0 Fe.r +Awed fm. Ory of Thornton Alt 5111 Rum 51041Rod PH� Decrier . ?CI ERA N04s--re Thornton Water Project n TWP Corridor Q Study Buffer Weld County Pirme Applicator I Id County Permn Application 2 Weld County Permit Application 3 =Lorimer County Permit Application I . Raptor Nest Observed by ERo Bold Eagle Nett Site Buffer Proble s Meadow lumping mouse Bold Eagle Roost Sits El Evaluated Not Trapped Q Roves Dog Colony/Passable Burro -wen Owl Nest Bold Eagle Weise Concentration Area r 1 Trapped Not Found a Bold Engle winter forage Area 0 250 500 0 Feet Figure 5.49 Wildlife 'toted tr. Gtr of Thornton :it 5281 Fipwe 5 10411 trod IJBI ire^Set I I, 2011 1".14O !:C Ln-n: 14e. o -nog. C Cccrg"r 7C 5 1A Red-tailed Hawk Thornton Water Project In rwP Corridor Q Study Buffer Weld County Permit Application I Owold County Pecmd Application 2 Weld County Permit Application 1 C2larim or County Permit Application I Raptor Nest Observed by 110 Bald Eagle NW Site Buffo. Bold Eagle Roost Site hoao Dog Colony/Possible Burrowing Owl Ned � Bald Eagle Winter Concenhotion Area D Bold Eagle Winter Forage Area Preblo's Meadow lumping Mouse aEvaluated Not Trapped I 1 Trooped Not Found Figure 5.50 Wildlife PFeogtai bi: clt of T oiniM F $)41 Fipwe 51041 trail [OH, jl artbr'I, 7011 ERQ Ele Rraa-n :rot Thornton Water Project Figure 5.51 Wildlife CI JWP Corridor Q Study Buffer Id County Pitrmn AppticeSr I aid County Permit Applcoton 2 Weld County Permit Application 3 Clarke et County Permit Applkotion I Raptor Nest Observed by ERO Bold Eagle Bold Eagle Chomp Dog Colony:Pomade Burrowing Owl Nest b Bold Eagle Bold Eagle Nest Site Soifer Roost Site Winer Concentration Win*/ Forage Area Robles Meadow Jumping Mouse aEvaluated • Not Trapped Area F'''T II Trapped • Not Found 0 250 5007 0 Z Fe.' ?lpottd bt: Gryd Tltanrm Fir S241FgaS1041rat PHI Dearer 11, 2011 ERG.) LC eta n=.e se- a-maga t Coorgw 26'5,S�a u - Thornton Water Project QTWP Corridor Q Study Butter EtId County Penns Application I Id County Noma Application 7 Weld County Permit Application 3 aterimer County Permit Application 1 ® Raptor Nast Observed by ERO Bold Eagle Nest Site Buffer Prebla's Meadow lumping Mouse Bold Eagle Roost Site a Evaluated Not Trapped Prairie Dog Colony/Possible Burrowing Owl NeY L Bold Eagle Wetlw Concentration Area rn II Trapped Not found 0 Bold Eagle Winter forage Area TWP Corridor Q Study Buffer tId County Perme Apples:/on 1 old County Permit Applicators 7 Wald County Permit Application 3 Otorimer County Permit Appl.cation • Raptor Nest Observed by ERO Bald Eagle Nast Site Buffer Rebta s Meadow Jurnp.ng Mouse Bold Eagle Roost Site ® Evolooted • Not Trapped =Prairie Dog Colony/Possible Burrower; Owl Nett Bold [ogle Waster Concentration Area fl Bold Eagle Winter Forage Area Trapped Not Found n IW P Corr dor Raptor Nest Observed by ENO Hold Eagle Nest Sits auger Q Study Buffer Bold Eagle Roost Site Weld County o'ermil Prairie Dog Colony/Possible Burrowing Owl Nee Application I D Bold Eagle Wrier Concentration At Wald County Perrnil Application 2 0 Bold Eagle winter Forage Area Weld County Permit Application 3 Cilarimer County Permit Application I Problds Moadow lumping Mouse ElEvaluated Not hopped eo Trapped Nol Found Thornton Water Project Cl TWP Corridor ® Raptor Host Observed by ENO Bold Eagle Nest Site Buffet Prebla's Meadow lumping Mouse =Study Buffer ErwaId County Permit Application I Id County hermit Application 2 Weld County hermit Application 3 Clarinet County Permit Application I Bold Eagle Roost Site Evoluafed - Not Trapped Prairie Dog Colony/Potable Burrowing Owl Nest Bold Eagle Winter Conwnkvtien Area el Bold Engle Waiter Forage Area ❑e hopped - Not Found e 0 J O z 0- c c 0 7 c 0 E 0 l Broomfield 44, Content may pal re act Notional Geographic's current map policy Sources National :, ® GeographieS'Esti, Delorme, HERE, IJ -wCMC ISS NASA ESA METI NRCAN GEBCO, NOM. increment P Corp Nor thc?enn _ Thorn tot 2 E Stitt km Thornton Water Project `J TWP Corridor Study Buffer Weld County Permit Application 1 INN Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application viii•, ►t.. f/A Wild Turkey Production Area Wild Turkey Winter Concentration Wild Turkey Winter Range Pronghom Concentration Area Mountain Lion Human Conflict Area Black Bear Human Conflict Area Fat Lupton *Curl stone Anon A111100 14* Pnanel r Plat vivify 14k dark "I' C Q A 4. E_� Ar• van Ate a a► . Aepat I E Brogue. r 'Hudson Dente. �Ytl Figure 6 General Wildlife Overview Prepared for: City of Thornton File: 5241 Figure 6 1041.mxd (dlHJ November 29, 2017 ERO tRO Resources Corp Portions of this document include ,nteliectua, orooery or ?SRI andIrcenson and a -e used herein under Ilcenso. Copyright © 2016 ESR! and is licensors. All righm .no r C O Content may not reflect National Geogrophic's cu Geographic, Esri, DeLorme, HERE, UNEP-WCMC, NOAA, increment P Corp Thornton Water Project TWP Corridor Study Buffer Weld County Permit Application 1 Weld County Permit Application 2 Weld County Permit Application 3 Lorimer County Permit Application 1 rnvn)aP.a°) NASA, 'Fut CcNns Lwel�cd Y►ant Arpor re n Longmo tt B room fief ri as National NRCAN. GEBCO, Sz,+lrrr t White-tailed Deer Concentration Area Witte -tailed Deer Wnter Range Mule Deer Migration Corridors Mule Deer Concentration Area Mule Deer Resident Population Area Mule Deer Severe Winter Range Mule Doer Winter Range .Freda' ;k 64c on r • North glenn Thorn tor rr. - Greeley *Girl Song Asput tLupton PLEASANT VALLEY traArr ns . - Anpart Orrin ..lbstrcv. Figure 7 Mule Deer and White-tailed Deer Overview Prepared for: Gty of Thornton Ale: 5241 Figure 7 1041.md [dIHJ November 29, 2017 ERO Resources Coro po•nons of th.s document include ,ntellectuai oroor y of ESRI and Its licensors and are used kra,- under license. Copyright a 7016 ESRi and !is licensors. All rights reserved 0 v a e 3 a_ LL N G E 0 a. C • 3 3 U 0 E c 4 C 2 0 h M a • 3 t L a a c 0 L_ 0 Z '9 D u m 0 i N 9 a z File and Literature Review of Project Corridor for the Thornton Water Project AM.CH.NR31 IP a f USGS Cobb lake (1980). Commerce City (1980), Eastlake (1980) Fredenck (1980). Gowanda (1980), Johnstown (1970). Timnath (1973), Wellington (1980) and Windsor (1970). CO Quadrangles (1 24,000) Adams, Lanmer, and, Weld Counties. Colorado FS$ SNIP Recorded Sites Previous Surveys TWP Corridor Study Buffer 1 24,000 0 1,000 2,000 O t feet Figure 8.1 OAHP Search Results File: 5241 Figure Al CR 1041 mxd [dIHI March 29. 2017 1.1(O EROS Resources Corp Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright 0 2018 ESRI and its licensors All rights reserved E Pa 2 E a S • z a a c 0 c t 0 z c 0 0 c f h 9 t 0 8 ry a ket INMICAS :wigs.\ ;rPa�k . ick AM.AE.R104,4 �� rr�- envy t'larna et„_-• Ott \ we.% - toe M .011 File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Fredenck (1980). Gowanda (1980), Johnstown (1970). Timnath (1973), Welhngtan (1980), and Windsor (1970), CO Quadrangles (124.000) Adams, Lanmer, and, Weld Counties. Colorado Recorded Sites EDPrevious Surveys TWP Corridor Study Buffer 1:24,000 0 1,000 2,000 feet Figure 8.2 OAHP Search Results Fife 5241 Figure Al CR 1041 rnxd [dIH[ March 29, 2017 ERQ ERO Resources Corp Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright 0 2016 ESRI and its licensors A I rights reserved -: i. - ---- / \\ .es:Milo r- L `- V— Leo •' 0 f, I 41 'l1 it c MC.CH. • 157 t ;• MC.CH. • ` �;', ' 1A{r< f 460 ~►�� 't� O' --d . P`�. �` �• ,� — p a III r.—�0 • • a qtr `� I 1. �—f'); L--+ / (z.-:::— 4--..._, tre.... 9 err•• — 1 N-,, -" �-- .. "'.ylJ •0. o ? 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Colorado Figure 8.3 OAH P Search Results %/ Recorded Sites TWP Corridor UM Previous Surveys ( Study Buffer 1.24,000 File 5241 FgureA1 CR 1041 ERO 0 1,000 2,000 mxd [CM March 29, 2017 ERO Resources Corp. feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O2018 ESRI and its licensors A I rights reserved 0 cc v a 0 3 LL r'k • d • • o. 0 0 0 0 • • • a t V ,.....\1.------.7 'cr). .;* L/I±:'TIo,ee tririrt -----NI--------..---] ---.'----.......... —....7.M...`....._ 1 \ \ 5ELL J t 32 O _ O r ,4 ! ,•• . z .. • 5122 Sin K son , _ • l , , [tip \\ V1r • P .. ` -- — ICle Rea No a,. .k, \ l•� ' • - _ Visas ' �� C,::•:;l _ _ - — 1 ! / l il• GI ,tT1 LiJ1 !--- O / ,--'�•_ -. - Reaehoir ' , ' : '�•Hi-Land r No l !� + OD aiir. 'Yates a t t.i r 1 •' ink • Acres • N.— . o - —.., ., t. ...........; „,,,...o / i Oil ` • ref - gar 9 CS fn I Jells ° n '" y t�'k- _ r/ ) f i H ` J _. _ • 1 1s-'- 51 • 152 •• tir s?is le id, i` /, r1' ! " s r 6N 1 " 1 • - . - t III File and Literature Review USGS Cobb lake (1980), Commerce Gowanda(1980). Johnstown (1970), and Windsor (1970), CO Quadrangles Adams. Lanmer, and, Weld Counties. of Project Corridor for the Thornton Water Project City (1980). Eastlake (1980). Fredenck (1980). Tlmnath(1973), Wellington (1980). (1 24,000) Colorado Figure 8.4 OAH P Search Results %/ Recorded Sites TWP Corridor MEI Previous Surveys j Study Buffer 1.24,000 File 5241 Figure Al CR 1041 mxd [dIH[ March 29. 2017 ERO r [(() A Resources Corp 0 1,000 2,000 ' feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESRI and its licensors All rights reserved • _____.....-/6, � � `\ ' 4 17 • i • 'r / = • • • • �i Oj O J i•/ • so O : , O ` ` _ V • / b� t • • • r •J 0 I O • �, � , f O '� l. SON I f ' • �—�'•�- " •• • •• • ' 1• • 987- ll r o o ., o 15UJL.2547.2 o • i / �, > ---_ . ] L. - - o — O • • l ( 1 • 0 O 1 '� '� f \ , y, `lit ` ` ,",' • ,o �� • / • • .07"3 )• �1 r �:.j,. I --r C '„^-� Dv • MC.E.•71 OW L 5O4 -----.., ° o •• o/ O • i A / / I/ - - ---.3/4-rNftleNt.,,,,,.....0 r. -7 0., _.....erfiretre:eno or--; • -z-- A - 32 - - File and Literature Review USGS Cobb lake (1980). Commerce Gowanda (1980), Johnstown (1970), and Windsor (1970), CO Quadrangles Adams, Lanmer, and, Weld Counties, of Project Corridor for the Thornton Water Project City (1980). Eastlake (1980). Fredenck (1980), Timnath (1973), Wellington (1980), (1 24,000) Colorado Figure 8.5 OAH P Search Results File: 5241 Figure A1 CR 1041 F J [() 1,74 Recorded Sites TWP Corridor imp Previous Surveys Study Buffer 1:24,000 0 1,000 2,000 mxd(d'H) March 29, 2017 ERO Resou•crs Corp. 1 feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O2018 ESRI and its licensors All rights reserved n ^Ni o o / (a o' i � • e. 1 p N. ° l / r / • - •404 • f �� v r., ..-.- • • v y� • /a r r r o • ,t f` ) // _ io O j ~ o 1 r 1 t Pr / r4 -J -, \..-- 4-• ../ N, 4 v re • l N iow Kle / V ji • -"..\ ( , ^ NJ ___ \i---) i 7 / r-1/ f 9 ( y ,Ce" ` o • / o 5O51 '-� � ..„.7.-1:11:-..G.L -- • II _.. 6r� f%' 1 1 O File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980). Eastlake (1980), Fredenck (1980). Gowanda (1980). Johnstown (1970). Timnath (1973), Welhngton (1980). and Windsor (1970). CO Quadrangles (1 24.000) Adams. Lanmer. and, Weld Counties. Colorado Figure 8.6 OAH P Search Results ra Recorded Sites TWP Corridor OM Previous Surveys J Study Buffer 1:24,000 j� jRO0 File: 5241 Figure Al CR 1041 1,000 2,000 mxd [dalj March 29. 2017 ERO Rnourcrs Corp feet ortions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright 0 2016 ESRI and its licensors AU rights reserved 4 1y 7 • i • S"- d 2' • \S.\ ..ifoil r• i 2 0,--7-N.get(ri vi/ o O ; ‘ w�•.: Alternative Pump Station �a Location ll ., \ ° c . • - ; •= • • •, ,/ •••. BM • 5007 •.. F I r • - J -' ,,,/ 1'" • • • •• 'v -- ° to tone WL..N1• •�� • o • 1 f .,� - . _ _ ( - . • i ii _ • • • _ _L 0 o --\..I -I V a 0 \r ... o• ; • � • • ° ti 1 ' torso , ! .. I ` L G• 1 • z ;derick ' I --i r—< ._.__ . t • Carbon ti I r 1 r ' r� . 0 1 oT } , /• ii o . o i-�Cs ant r r a �� w2 l'a, row ;' , 2 • es o y o File and Literature Review USGS Cobb lake (1980), Commerce Gowanda (1980), Johnstown (1970), and Wndsor (1970), CO Quadrangles Adams. Lanmer, and, Weld Counties, of Project Corridor for the Thornton Water Project City (1980), Eastlake (1980), Frederick (1980), Timnath (1973), Wellington (1980), (1 24.000) Colorado Figure 8.7 1� OAH P Search I Results �l J %/ Recorded Sites TWP Corridor ME Previous Surveys Study Buffer 1.24.000 'rI" Fde Figure Al -1 RO 0 1,000 2,000 5241 CR 1041 mxd (dI March 29, 2017 ERO Resources Corp feet Portions of this document include intellectual property of ESRI and as licensors and are used herein under license Copyright O2016 ESRI and its licensors A I rights reserved 0 E U U • 0 LL or in a. 0 a 0 0 0 O a` 0 n 5 •• a • U ` / Cr v. a Iona 4 1• J / , -- • map ma • t ` a as _ • • 4 . . 'DC } r er"re) i imam « IMO LIT � -1 - � 5WL.304• AIt -rn -tiv- 'um• St-ti•n L•c.ti•n • _ V , 1 \ `, • J + s . . .. ice .4 '\ I '�� ' m asap .� • ., , . • • Jr- '..,.-- 1 t: ._ • .. . . . •.. ct ,. a • e ‘..:, - r I itos d w\1 4• • •.. s 4 t3••. • File and Literature Review of USGS Cobb lake (1980), Commerce Gowanda (1980), Johnstown (1970). and Windsor (1970), CO Quadrangles Adams, Lanmer, and, Weld Counties, Project Corridor for the Thornton Water Project City (1980), Eastlake (1980). Fredenck (1980). Timnath (1973), Wellington (1980), (124,000) Colorado Figure 8.8 OAH P Search Results j File 5241 Figure A1 CR 1041.mxd[diH] -1 11(C) L-4" %/ Recorded Sites TWP Corridor ME Previous Surveys J Study Buffer 1:24.000 0 1,000 2,000 March 29, 2017 ERO Resou'crs Corp feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copynght 0 2018 ESRI and its licensors All rights reserved E Cr U Q a co LL \Cultural\104t Perm 016 New Allyn n Project\Maps O z 9 u 0 0 0- 8 N a c • File and Literature Review of Project Corridor for the Thornton Water Project L-� USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Frederick (1980), Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980), and Windsor (1970). CO Quadrangles (1 24,000) Adams, Lanmer, and, Weld Counties, Colorado Recorded Sites Previous Surveys TI/VP Corridor Study Buffer 5W L.1076 1:24,000 0 1,000 2,000 ' feet SW L.2189.8 5W L.2189.9 • Figure 8.9 OAHP Search Results Re: 5241 Figure Al CR 1041 mxd [dIH] Mardi 29, 2017 CRO Resources Corp Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESRI and its licensors All rights reserved 5 0 c 4r 0 n Project Map 0 Z c 0 c 0 c N U E O S N Cl.. File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Frederick (1980), Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980), and Windsor (1970), CO Quadrangles (1:24,000) Adams, Lorimer, and, Weld Counties, Colorado ala Recorded Sites Previous Surveys TWP Corridor Study Buffer 1:24,000 0 1,000 2,000 O feet Figure 8.10 OAHP Search Results File: 5241 Figure Al CR 1041 mxd (dlH] March 29, 2017 ERQ EQO Resources Corp Poroons of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESRI and its licensors A I rights reserved 4931 / 1 5W L.841 r OSIS f / vQ I 4.946 • f 49$ Hartford +96s 4964 4943 RapW er .r \ v, • • aft i j• B 1 O • +II �_ 04 5WL.:•8 ' 95. ' TON 4982 3C / - �� V -pkgsma_LAzia . 4,989 • • .� • g1ON 6 ... • V /I d \ Hill rte_ -� ,�c_. ` JILL t 503! k / JlJ i 1 (--1 ��, _ -- 1; \`-- A Orb �. dab_ C3[ 3Ch 3', �� ",�_•` ` Ng\ ' e` 4.+0 / \i r'N°1 4) - -, 1\i‘ka '.- 4 1 :\ r File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Fredenck (1980), Gowanda (1980), Johnstown (1970). Timnath (1973), Wellington (1980). and Windsor (1970), CO Quadrangles (1 24,000) Adams, Larimer. and. Weld Counties, Colorado Figure 8.11 OAH P Search Results %/ Recorded Sites TWP Corridor F 1t()O ED Previous Surveys J Study Buffer 1:24,000 1,000 2,000 File- 5241 Figure Al CR 1041 mxd [dlHj1, March 29, 2017 CR0 Rtsoorces Corp feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright 02018 ESRI and its licensors All rights reserved E U U Q 3 a LL 0 a 0 0 3 3 9 D E C Z 0 i C D C O 2 C C .C S 0 a h a C { • • 50.29 ' File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Frederick (1980), Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980). and Windsor (1970), CO Quadrangles (124,000) Adams, Larimer, and, Weld Counties, Colorado Recorded Sites Previous Surveys TWP Corridor Study Buffer 0 1:24,000 1,000 2,000 O feet 5W L.841 Figure 8.12 OAHP Search Results File: 5241 Figure Al CR 1041.mxd [dlH) March 29. 2017 ERO Resources Corp. ERQ Portions of this document include intellectual properly of ESRI and its licensors and are used herein under license Copynght 0 2016 ESRI and its licensors A l rights reserved V x 0 ce v z tp LL V In C E m 0 C m U m E 0, e 0 'a 0. 9 EC a` u 0 C 0 c 0 C V n r CJ G 0 0 N a C a LARIMER CO 25 "Th C\` r , ..� t ., ,---___----_,.."" isfl 4'4-- ::--- ...--..... • • ?.s,' ,l • a C 4.838 { j.•\ so �� , 1' • • r 1 4867 • \-. c"•• . a y.- ��1 BM • 4782 ,�� _ _/. �1 �, •• ./ • •; /�s •4O26 143 i. 'cl.& 4.0,6 3 2/, ` 4852 1 • • • J ` z ,- -\` , /49• , . e • • / - • ! T •—_— \ ! ° f / •/ 4.946 /1 �,--- f / 1813 45I� - 0 1 \ -\ • , [Johnstown Res ' C m ' _ . • JOhnstaw a eo OW I1 --1/2. �� y eoj c o e• _.• • ----t_ • • • oO� 4979 ' ;� ; . •• • - 6 e 1 4 4:4 .-' r f 495 r- File and Literature Review USGS Cobb lake (1980), Commerce Gowanda (1980), Johnstown (1970), and Windsor (1970), CO Quadrangles Adams, Lanmer, and Weld Counties of Project Corridor for the Thornton Water Project City (1980), Eastlake (1980), Fredenck (1980), Timnath (1973). Wellington (1980), (1 24,000) Colorado Figure 8.13 OAH P Search Res'' �+S f R l File 5241 Figure Al CR 1041 mxd (dlHj March 29 2017 ERO FI1) Rncources Corn %/ Recorded Sites TWP Corridor CDPrevious Surveys Study Buffer 1:24,000 0 1,000 2,000 feet 'portions of this document incWde intet ectua; property of ESRI and its licensors and are used herein under license Copyright 0 2016 ESRI and its licensors All rights reserved V U 0 0 cc u. a O 0 0 0 a • M 8 • +vaa 6.75 ----I; 7D . . .._- ..... _ GAIVA 2 d O. Gave _ ••1•PU 5W L.841 J , -- - .... .etc '• . 00 *ago 4$144 .•• • r' 4448 . . e O/ tG - Kelim. •. ii. 3 5LR.850.4 --,- 5LR.850 ' . • R C / ,„ _ LARIMER C ' co J — " s r—Sc 4 /` WESTERN •• • 13 s•' /1 \,'s S Koenig , • ( ., • 5LR.11790 ..• _ • � Rgerao+ir. X -- . r( 487 ea b ra .809 L.CH.NR50 •5WL. 9. • v 0� Koenig ^ • \ f � ,` , ):. \.1 in= r i •:taiq , _ -7>• . 1 i 44,28 .,fit ls g. C �1 we wa �.n .� t• ea 4b$1 48561 Ntl.iS N::' . _ --1 \ gr.. 1 ( / --- // 25 a C • . a ` lr ` `\\\ y m - 5WL.841 File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Frederick (1980), Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980), and Windsor (1970), CO Quadrangles (1.24,000) Adams, Larimer, and, Weld Counties, Colorado Figure 8.14 OAHP P Search Results l File: 5241 Figure Al CR 1041.mxd (dlH1 March 29, 2017 ERo 1 14C) Resources Corn V Recorded Sites TWP Corridor Las Previous Surveys [J Study Buffer 1.24,000 0 1,000 2,000 fl feet Portions of this document include intellectual property of ESRI and its licensors end are used herein under license Copynght O 2018 ESRI and its licensors A I rights reserved 42 o C - t I 1 tr $0 * • • • • ��' : • • ` t -' -ti. � te e• ', % • - 049 , 4.900 - .�' p ' ' • , n\ • 30051 t s . \$ ,995 • 0\ S0.1� 1 1 4960 Orlaharna Rase 4.979 I tit ..-"----- .\ ` a 6 A•- t _-` I ..____—�/� / rte' t r �� :i \ s ' r -__ J ,) -----'6- ." ____—..e sate - o I77 • " 4891 • -ili• •�� 4996 51.R.9385 • . 5W L3153 i` \` • School ma --. „*$ 4975• .............................. ...N.,......•-••. It.. ..•• . ..•M..• _• . 4815. •n I 12 ` 5WL841 e.:-.,,.5 • t;uvtr11• I • /' �/ J -_ File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980). Commerce City (1980), Eastlake (1980), Frederick (1980) Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980). and Windsor (1970), CO Quadrangles (1 24.000) Adams. Lanmer, and Weld Counties, Colorado Figure 8.15 0AHP P Search File 5241 Figure CR Results 1.4148.) %/ Recorded Sites TWP Corridor E...� Previous Surveys Study Buffer 1.24'000 0 1,000 2,000 Al 1041 mxd (dill] March 29, 2017 _SO Re_ou'crs Corn • feel Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESRI and its licensors All rights reserved Naas �� .•r '.N� 48/7 W Q, 3 •mom o . • s••-• • . • • + . - * I a•t \ O 18• ^• Avery- o 17 - f 4.41 0: •• BMswL.38 47'99 44005 13 0'1° ,, - — 48O6 � .$04 • • • •. 479i oo . G ( - • ' 8 �"-----,',~• --.~ _-- `s I • • ea • , +tea a It a \\� 'r . - . i • . 8 • • i *• ,r---Th I; \•r�,sr. 19 - • • • •% 2( e • I�. •( , . r. ,/ - % • e \ tti ... . / if fa*" 4 a a d.. i . _� 4 _t-- = a • a • t . -.at- �� .. T / R 1964 _... 6 wI) 19� i • ' • • • •• r . iii' / � \ /.' \. - 559 // j sc.. • • . r •, a,,l `�.� L-. - :\ ' / 1 • _ . / 1 , i- , l 1 .,=. 3f4. _ _ c- •- ._,`• 49I4, �9so` o !• `:- ♦s•. ` `,1 i •2. 1 »350 J f "2•* File USGS Gowanda and Windsor Adams, and Literature Review Cobb lake (1980), Commerce (1980), Johnstown (1970). (1970). CO Quadrangles Lanmer, and, Weld Counties, of Project Corridor for the Thornton Water Project City (1980), Eastlake (1980), Fredenck (1980), Timnath (1973). we+angton (1980). (1 24,000) Colorado Figure 8.16 OAH P Search Results %/ Recorded Sites TWP Corridor imp Previous Surveys C Study Buffer 1:24,000 File 5241 Figure Al CR 1041 F It) 0 1,000 2,000 mxd (dIH] March 29, 2017 ERO Resources Corp feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright 02016 ESRI and its licensors All rights reserved \ • k -n-,1=1an 1 t 1 •e 1 •i , / '--Ai `. K .- s ( L LAWMEN CO _ ' - _ -•_ I IL: f i: v - 4 AAA JoC A i # �11loo 0 ,\%:1 ` r ' ems,-, ,S� • 5WL•:23 - -- -�?3 .tee ''--...— -- '`s,„3/4, . Lake Canal Rea No I I. N NN \ s 7 .. . :. o 0 S 7 I•__ 0 • *IRO Avery e -On File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980). Eastlake (1980) Frederick (1980) Gowanda (1980). Johnstown (1970). Ttmnath (1973) Wellington. (1980) and Windsor (1970), CO Quadrangles (1 24 000) Adams, Lanmer, and. Weld Counties, Colorado Figure 8.17 OAHP P Search Results V71 Recorded Sites TWP Corridor 1146) Previous Surveys [J Study Buffer 1 24,000 0 1,000 2,000 O File 5241 Figure A1 CR 1041.mxd[diH] March 29, 2017 LRO 4••sa,rus Corp feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESR I and its licensors A I rights •eserved - AI 9Q6 J (s9�1 e } .1 • = rani' _ ,‘ ', i _ —nraff Dead man Lake• �1✓- • s95i (./. i 4 ``tt - - \NJ 518.11360 • r I '' • 42# 4939 _3 CO I J �1. I. 1 • ( IIL Swift �t �`� t C.`N . • ' iJ \ \ s A�9- " s 4992 1\ / / . • • •• 49/6 - {^ %t '' to. \`� '.\\ TIINATH ?ate_- d 1• Co. • sQ RESERVOIR'`"` "" ?: 30 �. f I.• <drO s A e ,� _ 4971 P•r• • 4> 1 - 495S \- ` �� 5LR.••5 Aso .} ' I V A 4 •‘* J It 4 93 o rt ti ' is 2L] File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980). Eastlake (1980) Fredenck 11980) Gowanda (1980). Johnstown (1970), Timnath (1973), Wellington (1980) and Windsor (1970), CO Quadrangles (1 24.000) Adams. Lanmer. and. Weld Counties Colorado Figure 8.18 OAH P Search Results File 5241 FtgureA1 CR 1041 F-- 1(.)0 %/ Recorded Sites TWP Corridor ril Previous Surveys [] Study Buffer 1 24,000 1,000 2,000 f mxd (dlHj March 29 2017 ERO Resources Corn feet ortions of this document include intellectual property of ESRI and its licensors and are used herein under license Copynght m 2016 ESP! and its licensors All cghts reserved V CZ 3 u_ N N a fa C OI 0 0 a` yr a et; i t L. +• 0•100 s • — t r-------,,-t------...:.---� 1 Y. r- -1.L -1 r.. - — 91A : ).t saaressette sr 5LR.9458 SLR.9458.1 MCE SL•.:•32.5 • 73 I c • . • `. • \ 6 r • • c. Y - 2.1 ,y$ _ 5WL.55. ,,. 5WL.3167.1 • ) ,'•a teiot • -* \4 • , • 30K0 • 7 AND SOUTHERN 3O73 > MC.CR.R141 . ��` 0 5- rr4'2',`�� , r I i5 Woods .5f 5 •/// a /ij' • 3 ` ` • ��£ fgSr . ---��- -' - , ire • al �-am �.- -.�-' ��-as • a al _ JJ • ._ \\ov\:_......:: 17 1 5y . 'Pr s9la? • File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980). Fredenck (1980) Gowanda (1980), Johnstown (1970), Timnath (1973), Wellington (1980) and Windsor (1970). CO Quadrangles (1 24,000) Adams. Lamer and, Weld Counties Colorado Figure 8.19 p O /� H P Search 4, I Results OAHP 1 F IR4) %/ Recorded Sites TWP Corridor alle Previous Surveys Study Buffer 1 24,000 0 1.000 2,000 feet File 5241 Figure Al CR 1041 mxd (dlH) March 29 2017 CRO Resources Coup Portions of this document include intellectual property of E SRI and its licensors and are used herein under license Copyhgnt m 2016 ESRI and its licensors All rights •eseveo rilsa/2 s3 - 8M15249 COBB C 0 B B LAKE 5139 \ ` tr f 24 t .� 1 • ! i i sa 1 s�eot '\ .. rr 1 19 4. se sew*--- ,, tw 8 / I. f t ! L�_� " _� ..•-. 5191 i I 45 frit 4. d- 1r i / \ 1 , tic \ -- _ - "I 3 z. 25 xn --gyp .Thtsok\ r. c a c '. , _ - \--_ ..- -. . % - e O .5:62 -. • .r • • I • 5235 % a i Ti r -- -, sib \'' • • t ‘44%,2 `4 1t --r---••�_ rs s 91 N Y_ 5/ . CS/60 5/S9 r 515O _. � • ao l Y 'C s>: 31 ct Asa 5086 - C o ; -- a • • . _ —, BM R., en 4— / l .•, File and Literature Review USGS Cobb lake (1980), Commerce Gowanda (1980), Johnstown (1970), and Windsor (1970), CO Quadrangles Adams, Latimer, and, Weld Counties, of Project Corridor for the Thornton Water City (1980), Eastlake (1980), Fredenck (1980), Timnath (1973), Wellington (1980). (1-24,000) Colorado Project Figure 8.20 OAHP P Search 1� I Results %/ Recorded Sites TWP Corridor ri Previous Surveys Study Buffer 1:24,000 1 1Z() File 5241 Figure Al CR 1041.mxd (dill `` March 29, 2017 CRO Resources Corp. 0 1,000 2,000 fl feet Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copynght 02016 ESRI and its licensors A I rights reserved U Q e J LL ■ ■ ■ 9 8 a ern ProtecfMepfl2016 N IAR WELD CO 4. wf COUNTY 1. File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980). Eastlake (1980), Fredenck (1980), Gowanda (1980), Johnstown (1970), Timnath (1973), VVellingtan (1980). and Windsor (1970), CO Quadrangles (1 24,000) Adams. Lanmer, and, Weld Counties. Colorado %. Recorded Sites Previous Surveys TWP Corridor Study Buffer 1:24,000 0 1,000 2,000 O feet Figure 8.21 OAHP Search Results File 5241 Figure Al CR 1041 mxd KPH] March 29. 2017 ERQ IRO Rnourccs Corp. Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2018 ESP, and its licensors All rights reserved E U U 0 0 aP_ LL N N E a 0 G P J c E c Q 2 I0 O N a a 6 u 0 D a` c 0 L 0 2 c 0 c 0 c 0 N x 0 0 d N h a COLORADO .410 File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980), Commerce City (1980), Eastlake (1980), Fredenck (1980) Gowanda (1980). Johnstown (1970), Timnath (1973), Wellington (1980). and Windsor (1970), CO Quadrangles (1 24.000) Adams Lanmer. and, Weld Counties, Colorado Recorded Sites Previous Surveys TWP Corridor Study Buffer 5LR.8932.6 1:24,000 0 1,000 2,000 feet —(r eir to 1/4 Figure 8.22 OAHP Search Results File 5241 Figure Al CR 1041 mxd [CH] March 29. 2017 ERO Resources Corp ERQ Portions of this document include inteuect„al property of ESRI and its licensors and are used herein under license Copynght O 2016 ESRI and its licensors A I rights reserved E CC U U Q v ry E 0 c 4r 2 0 o ' c 0 0 2 In P X5900 Projects 1 10. oaf /•ev/' inter • e I 1 0--- a / i . •-o 7 _" i / S i1.-., t ,-N /.' % i _, I' SLR.962.2 5LR.9489 File and Literature Review of Project Corridor for the Thornton Water Project USGS Cobb lake (1980). Commerce City (1980). Eastlake (1980). Fredenck (1980), Gowanda (1980). Johnstown (1970), Timnath (1973). Welimgtcn (1980). and Windsor (1970). CO Quadrangles (1 24.000) Adams Lanmer, and Weld Counties Colorado Recorded Sites > Previous Surveys TWP Corridor Study Buffer 1:24,000 0 1,000 2,000 feet • • • • • • 4 I Figure 8.23 OAHP Search Results File 5241 Figure Al CR 1041 mxd [dIH] March 29, 2017 L RO Resources Corp 141RO Portions of this document include intellectual property of ESRI and its licensors and are used herein under license Copyright O 2016 ESRI and its licensors All rights reserved APPENDIX A SUMMARY OF WATER FEATURES IN THE TWP CORRIDOR AND STUDY BUFFER Wetland ID / Drainage' Name Proximity to TNW RPW isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude longitude 1 ►"�►► ` \umhe►(s1 Acreage in TWP Corridor Acreage in Study Buffer Dry Creek Ditch A ditch that connects to Jackson Ditch, which connects to Long Pond Reservoir (RPW), which connects to Lindenmeier Lake (RPW), which connects to Dry Creek (RPW), which connects to the Cache la Poudre River (TNW) (Poudre River) 3- to 5 -foot -wide ditch I _arimcr / 4 40.6429644 I - 105.083? 15 I 4. I 0.88 0.16 Wetland 1 (W I) A wetland with a possible connection to Terry Lake (TNW), which connects to the Larimer and Weld Canal, which connects to the Eaton Ditch, which flows to Owl Creek, which flows to Lone Tree Creek, which flows to the South Platte River (NW) Wetland abutting Unnamed Pond 1 l.arimcr / 4 40.64000429 -105.0862722 4.1 0.69 6.66 I err. I .ake A reservoir with a possible connection to Dry Creek (RPW), which has an eventual connection to the South Platte River (NW) Open water lake Larimer / N/A 40.6371 1597 - 105.0857824 1. 1 181 Unnamed Pond 1 An isolated pond with a possible connection to W 1, which has an eventual connection to the South Platte River (TNW) Retention pond abutting W1 Larimer / 4 40.64050032 - 105.0859676 4.1 0.37 Water Supply and Storage Reservoir No. 4 A reservoir that connects to Jackson Ditch, which connects to Long Pond Reservoir (RPW), which connects to Lindenmeier Lake (RPW), which connects to Dry Creek (RPW), which connects to the Poudre River (NW) Open water reservoir Larimer / 4 40.64686818 -105.0854282 .I . I 14.11 22.54 Jackson Ditch A ditch that connects to Long Pond Reservoir (RPW), which connects to Lindenmeier Lake (RPW), which connects to Dry Creek (RPW), which connects to the Poudre River (TNW) 3- to 5 -foot -wide ditch Larimer / 4 40.64327361 -105.0764691 4. I 0.37 A - I Wetland 1D / Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW ption County/ Permitting Segment* Latitude Longitude 1 i fiu re \iii be11'I Acreage in TP TVVP Corridor Acreage in Study Buffer W2 A wetland adjacent to the Jackson Ditch, which connects to Long Pond Reservoir (RPW), which connects to Lindenmeier Lake (RPW), which connects to Dry Creek (RPW), which connects to the Poudre River (TNW) Wetland swale along the Jackson Ditch l.arimcr / 4 I H, 1.64844913 -105.0779635 1. I 1.04 3.33 Larimer County Canal A canal that connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms 30 -foot wide canal Larimer & Weld / 3 & 4 10.64515401 -105.0380869 4.1-4.4, 4.6, 4.10, 4.11 5.699 -1.00 l nnamcd Ditch 1 Ditch that takes water from the Larimer County Canal and connects to the Long Pond Reservoir and Richard Lake Reservoir Number Six. Richard Lake Reservoir Number Six connects to Long Pond Reservoir, which connects to Lindenmeter Lake, which connects to Dry Creek, which connects to the Poudre River (TNW) 2-foot-ww ide ditch I arimer ! 4 40.64167021 -105.072374 4.1. 1.2 0.32 0.07 Unnamed Pond 2 An isolated pond with no apparent surface connection to a RPW or TNW Open water pond Larimer / 4 40.64167191 -105.0707399 4.1, 4.2 10.67 Unnamed Ditch 2 A ditch that connects to the Larimer and Weld Canal, which connects to Eaton Ditch, which flows to Owl Creek, which flows to Lone Tree Creek, which flows to the South Platte River (NW) 2 -foot -wide ditch Larimer / 4 40.64640939 -105.0700915 4.1, 4.2 0.29 0.12 Unnamed Pond 3 An isolated pond with no apparent surface connection to a RPW or TNW Artificially constructed pond with open water Larimer/ 4 40.64650528 -105.0680106 4.2 1.06 Annex No. 8 A reservoir that connects to the Larimer and Weld Canal, which connects to Eaton Ditch, which flows to Owl Creek, which flows to Lone Tree Creek, which flows to the South Platte River (TNW) Open water reservoir I.arimer / 4 I0 6 1R ;65X6 -105.0540572 .1 .2 0.71 20.2.E A-2 \N ctland II) ! dame Proximity roximity to TNW, RPW, Isolated, or to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in "IWP Corridor Acreage in Stud) Buffer Unnamed Pond 52 An isolated wetland with no surface connection to waters of the U.S. Isolated wetland Larimer / N/A 40.643509523 -105.0480556 4.2, 4.3 0.32 Elder Reservoir A reservoir that connects to the No. 8 Outlet Ditch, which connects to the Larimer and Weld Canal, which connects to Eaton Ditch, which flows to Owl Creek, which flows to Lone Tree Creek, which flows to the South Platte River (TNW) Open water reservoir I .arimer / 4 40.64772277 -105.0403869 1.1 1 1 10 11;.1; , W74 An isolated wetland with no surface connection to waters of the U.S. Isolated wetland Larimer / N/A 40.644082805 -105.0423601 1. u. ;1 No. 8 Outlet Ditch A ditch that connects to the Larimer and Weld Canal, which connects to Eaton Ditch, which flows to Owl Creek. which flows to Lone Tree Creek, which flows to the South Platte River (TNW) 30 -foot -wide ditch Larimer / 4 40.64502332 -105.0389597 1. .3 0 2 1 1.1 Box Elder Creek A creek (RPW) that connects to the Poudre River (TNW) 4- to 6 -foci -wide OHWM I.arimer / 4 40.65336009 -104.9822874 1.t> (1.1 1 0.16 Cobb Lake A lake that connects to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Open water lake I ,arimer / 4 40.65241868 -104.9671271 1.6. 4.7 34.01 44.49 Wetland ID / Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW ption County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in TWP Corridor Acreage in Study Buffer \V3 A wetland abutting Unnamed Pond 4, which has a possible connection to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms Cattail wetland abutting Unnamed Pond 4 l arinier ' 4 40.65504438 -104.9689002 4.6, 4.7 8.03 4.08 Unnamed Pond 4 A pond with a possible connection to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms Open water pond l.arimer / 4 40.6553215 -104.970315 4.6. 4.7 0I.KR 3 80 \\ 1 A wetland abutting Cobb Lake, which connects to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms Cattail wetland abutting Cobb Lake l.arimer/ 4 40.65240243 -104.96162 4.7 2.88 0.77 Wetland ID / Dr ainag` Name I ro\imit\ to TNW RPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude I- igure Nurnhcr(s) Acreage in TWI , Corridor Acreage in Stud) Buffer Windsor Ditch A ditch that connects to Cobb Lake, which connects to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms 5 -toot -wide ditch Larimer / 4 40.65330162 -104.9535585 1.7..1.8 0.17 U 90 Cowan Ditch I .ateral A ditch that connects to the Cactus Hill Lateral, which appears to dissipate in the uplands north of State Highway 14 and County Road 17 5-Ibo -wwide ditch I.arinter / 4 40.65329289 -104.9515966 4.7, 4.R a I') I u Cactus Hill Lateral A ditch that appears to dissipate in the uplands north of State Highway 14 and County Road 17 3- to 5 -foot -wide ditch Larimer & Weld / 3 & 4 40.63445941 -104.9427987 -1.1) 0.14 0.17 I IiIlkley Lake A lake shown as connecting to Cobb Lake, which connects to the Larimer County Canal, which connects to Black Hollow Reservoir and the Pierce Lateral; the Pierce Lateral terminates at a private irrigation reservoir east of Pierce; the Black Hollow Reservoir releases to the Larimer County Canal which connects to the Collins Lateral which connects to the Lone Tree Lateral which terminates on farms Open water lake I artnicr / •1 40.63107907 -104.9458386 I.' . 1.1 U 6.93 23.7; Unnamed Ditch 3 A ditch that appears to dissipate into uplands (no hydrologic connection to a water of the U.S.) 3- to 5-Icrot-wide ditch Larimer & Weld / 3 & 4 40.6159)175 -104.9433691 4.10 U U' U.") Unnamed Pond 5 7 A pond that drains to the Unnamed Ditch 3, which appears to dissipate into uplands (no hydrologic connection to a water of the 11.S.) Open water pond Weld / 3 40.61397434 -104.9422329 4.1 U 1.98 4.03 V1 etland ID / Drainage Name W, Proximity to TNRPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Numbers) Acreage in "CWP Corridor Acreage in Study Buffer \\ 5 A wetland that abuts Unnamed Pond 5, which drains to the Unnamed Ditch 3, which appears to dissipate into uplands (no hydrologic connection to a water of the U.S.) Cattail wetland abutting Unnamed Pond 5 Weld / 3 40.61370321 -104.9428247 1. I() , 7 1.26 \\ 6 A wetland that is isolated with no outlet to waters of the U.S. 3 -foot -wide wetland Larimer 4 40.58596315 -104.946184 1.1 2 0.78 0.11 \\ 7 A wetland swale with a possible connection to W8, which connects to the Larimer and Weld Canal, which has an eventual connection to the South Platte River (TNW) 3 -foot -wide wetland swale Weld / 3 40.58492811 -104.9429686 4.12 0.70 I .07 Unnamed Pond 54 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.576858 10.E -104.9411683 4.12 1.01 W8 A wetland swale that connects to the Larimer and Weld Canal, which has an eventual connection to the South Platte River (TNW) Wetland swale I arimer ; 4 40.57459087 -104.9451479 4.12. 4.13 8.71 5.13 Larimer and Weld Canal A canal that connects to the Eaton Ditch, which flows to Owl Creek, which flows to Lone Tree Creek, which flows to the South Platte River (TNW) 10 -foot -wide canal Larimer & Weld / 3 & 4 40.56729125 -104.9447265 1.13 1.67 0.60 W9 A wetlands with a possible connection to Timnath Reservoir (see Timnath Reservoir) Cattail wetland drainage to Timnath Reservoir Larimer / 4 40.56749424 -104.9456041 4.13 9.60 2.25 Unnamed Pond 6 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water I arimer / 4 40.55281574 -104.9450029 4.14 6.06 Unnamed Drainage 6 An intermittent drainage connecting to Timnath Reservoir (see Timnath Reservoir) Intermittent drainage Weld / N/A 40.552973322 -104.9408878 1.14 0.13 WI0 0 A wetland with a possible connection to Timnath Reservoir (see Timnath Reservoir) Cattail wetland Weld / 3 40.55172355 -104.943605 4.14 3.63 i W11 A wetland draining to Timnath Reservoir (see Timnath Reservoir) Cattail wetland Weld / 3 40.54966624 -104.9428905 4.14 5.99 2.34 N's etland II) / Drainage proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in TWP Corridor Acreage in Study Buller 'A 12 A wetland abutting Timnath Reservoir (see Timnath Reservoir) Cattail wetland abutting Timnath Reservoir Larimer / 4 40.54773594 -104.944917 4.14 5.52 I . ,I! 1'imnath Reservoir A reservoir that connects to the Timnath Reservoir Outlet, which connects to the Greeley No. 2 Canal, which flows to the North Side Lateral, which terminates in an irrigated field; Greeley No. 2 Canal supplies water to several private irrigation reservoirs that do not outlet to waters of the U.S., including Neff Lake and Lindies Lake; downstream from the TWP corridor, a portion of the flow of the Greeley No. 2 Canal is diverted to Lone Tree Creek (RPW), which flows to the South Platte River (TNW) Open water reservoir Larimer / 4 40.5477765 -104.9456219 1.11 7.5X 7.x)6 Unnamed Ditch 4 A ditch terminating in uplands north of East County Road 40 with no outlet to waters of the U.S. 2 -foot -wide dry ditch Larimer & Weld / 3 & 4 40.53986532 -104.9430024 1.11 U.2H 0. 1.1 Unnamed Pond 7 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 3 40.52328334 -104.9437478 1.15 U. 1.1 Unnamed Pond 8 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld /1 40.52251457 -104.9438052 4.15 0.10 I.ake Canal A canal that connects to the Greeley No. 2 Canal (see Greeley No. 2 Canal) 10- to 15 -foot- wide dry canal Larimer & Weld / 3 & 4 40.51872728 -104.9428854 4.15 0.13 0.13 Unnamed Pond 9 An isolated pond with no outlet to waters of the U.S. Open water pond Larimer / 4 10.50939051 -104.9458833 4.16 3.26 2.79 Wetland II) / Drainage Name R Proximity to TNW, PW, Isolated, „• Proximity to a Non-RPW o Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in TWP Corridor Acreage in Study Buffer Greeley No. 2 Canal A canal that flows to the North Side Lateral, which terminates in an irrigated field; Greeley No. 2 Canal supplies water to several private irrigation reservoirs that do not outlet to waters o i' the U.S., including Neff Lake and Lindies Lake; downstream from the TWP corridor, a portion of the flow of the Greeley No. 2 Canal is diverted to Lone Tree Creek (RPW), which flows to the South Platte River (TNW) 12 -foot -wide canal Larimer & Weld / 3 & 4 40.49561776 -104.9456069 4.16. 4.17 1.64 1.63 \\ I , A wetland drainage that connects to Unnamed Pond 11, which is isolated (see Unnamed Pond 11) Cattail wetland Larimer & Weld / 3 & 4 40.48676005 -104.9433562 1.17 4,9.1 1.1 \V 14 A wetland adjacent to Unnamed Pond 11, which is isolated (see Unnamed Pond 11) Cattail wetland abutting Unnamed Pond 11 Weld / 3 40.48354117 -104.9429225 •1.17 2.36 Unnamed Pond 55 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.483704743 -104.9412452 .1.17 I.5.3 Unnamed Pond 10 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Larimer/ 4 40.48144765 -104.9456763 4.17 13.76 20.29 Unnamed Pond 11 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 3 40.48205614 -104.942783 4.17 12.10 8.66 Unnamed Pond 12 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water Larimer/ 4 40.4780103 -104.9456378 1.17 6.06 6.68 Unnamed Pond 13 A gravel pond adjacent to the Poudre River (TNW) Artificially constructed pond with open water Weld / 3 40.47454993 -104.9426251 4.18 _ 10 699 9.% Cache la Poudre River A river (TNW) that flows to the South Platte River (TNW) 20- to 25 -foot- wide river Larimer & Weld / 3 & 4 40.47277292 -104.9428786 1.18 , . -;"7 1.56 W75 Wetlands abutting the Poudre River 2- to 20 -foot -wide wetlands abutting river Larimer & Weld / 3 & 4 40.47277292 _ -104.9428786 4.18 0.9? 0.52 A-8 NN et land II) / Drainage Proximity to TNW, RPW, Isolated, , or Proximity to a Non -RI ��' Name Segment^ Site Description County/ Permitting Latitude Longitude Figure Number(s) Acreage in '1'11 P Corridor Acreage in Study Buffer Unnamed Pond 14 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water l arimer / 4 40.47237077 -104.9447621 4.18 0.91 Unnamed Pond 15 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water I ,trimer / -1 40.4716633 -104.9449358 4.18 0.63 Oklahoma Reservoir A reservoir that receives water from the Loveland and Greeley Canal; water flows from the Oklahoma Reservoir to an irrigation ditch that terminates north of East County Road 62 Open water reservoir Weld / 3 40.4253601 -104.9428343 4.20 16.53 18.62 W15 A wetland abutting the Oklahoma Reservoir (see Oklahoma Reservoir) Cattail wetland abutting Oklahoma Reservoir \Veld /3 40.42654942 -104.9437686 4.20 ' xi Loveland and Greeley Canal A canal that possibly flows into Ashcroft Draw (RPW), which flows to the South Platte River (TNW) 10 -foot -wide canal Larimer & Weld / 2 & 4 40.40830819 -104.9432516 1.21 0.72 0.58 \A 16 A wetland separated by a berm from the Loveland and Greeley Canal (see Loveland and Greeley Canal) Cattail wetland abutting the Loveland and Greeley Canal Weld / 2 40.4078994 -104.9435045 4.2 I 1.23 0.09 Farmers Ditch A ditch that diverts water from the Big Thompson River (TNW) and connects to Koenig Reservoir with no outlet to any known waters of the U.S. 4 -foot -wide ditch Larimer & Weld / 2 & 4 40.40256299 -104.9436297 1.2 I 0.15 0.12 W17 A wetland drainage with a possible connection to the Hill and Brush Ditch (see Hill and Brush Ditch) Cattail wetland Larimer / 4 40.38829402 -104.9462448 4.22 1.84 . 1 9 Hill and Brush Ditch A ditch that flows southeast and receives and returns flows to the Big Thompson River (NW) 4 -foot -wide ditch Larimer & Weld / 2 & 4 40.38455375 -104.9436394 4.22 0.16 0.16 Big Thompson River A river (TNW) that flows to the South Platte River (TNW) 18- to 22 -foot- wide river Larimer & Weld /2 & 4 40.38330674 -104.946367 4.22, 4.23 2.10 2.50 W76 Wetlands abutting the Big Thompson River 2- to 20 -foot -wide wetlands abutting river Larimer & Weld / 2 & 4 40.38330674 -104.946367 4.22, 4.23 1) 15 0.73 A-9 Wetland ID / Drainage Proximity to TNW, RPW, Isolated, or Proximity to a Non -RP Name Segment Site Description County/ Permitting Latitude I .ongitude I' i1zure \umhcr(%) Acreage in 111 P ( orridor :Acreage in Stud) Buller Unnamed Pond 16 A gravel pond with a possible connection to the Big Thompson River (TNW) Artificially constructed pond with open water Weld / 2 40.37751201 -104.9434246 4.23 1.95 1.57 Unnamed Pond 53 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Larimer / N/A 40.377643914 -104.9491501 4.23 0 I lillsboro Ditch A ditch that terminates in agricultural uplands south of Milliken 6 -foot -wide ditch Larimer & Weld / 2 & 4 40.37194611 -104.9440036 4.23, 4.26— 4.28 0.99) 0.77 Unnamed I Ditch 5 An unnamed ditch that connects to Big Thompson River (TNW) 3 -foot -wide ditch Larimer & Weld / 2 & 4 40.38331 - 104.944183 4.23 0.10 0.11 Unnamed Ditch 6 An unnamed intermittent ditch that connects to an unnamed intermittent drainage, which connects to the Big Thompson River (TNW) 4 -foot -wide ditch Weld / 2 40.38829 -104.9439276 4.21 0.19 0. I0 W18 A wetland adjacent to Unnamed Ditch 6 (see Unnamed Ditch 6) Cattail wetland Weld / 2 40.34762555 -104.9410699 -I?-1 0.11 1.76 11(, z An isolated wetland with no connection to waters of the U.S. Wetlands within artificially constructed area Weld / N/A 40.338109992 -104.94609838 4.? 5 0.28 Home Supply Ditch An intermittent ditch that terminates in uplands east of County Road 13 3 -foot -wide ditch Weld / 2 40.337529 -104.943017 1.7s 01.013 (1.(1 1 Unnamed Pond 17 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water \t, eld / 2 40.328025 -104.941506 1.' 5 0 09 Unnamed Pond 18 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 2 40.327959 -104.940971 4.25 11 17 Little Thompson River A tributary to the Big Thompson River (TNW), which flows to the South Platte River (TNW) 13 -foot -wide river Weld / 2 40.31363171 -104.9329632 4.26, 4.27 I.51 0.72 W19 A wetland that abuts the Little Thompson River (see Little Thompson River) 4 -foot -wide wetland fringe Weld / 2 40.31358117 -104.9329171 4.26, 4.27 2.03 1.53 Unnamed Pond 19 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond _ with open water Weld / 2 40.29840867 -104.9225595 •1.28 0.-W A-10 ‘\etland II) / Drainage Name Proximity to TNW, RPW, isolated, or Proximity to a lion-RPWLatitude Site Description Count)/ Permitting Segmen tx Longitude Figure Number(%) Acreage in TWP Corridor Acreage in Study Buffer W20 A wetlands that abuts Unnamed Ditch 7 (see Unnamed Ditch 7) Wetlands abutting Unnamed Ditch 7 Weld / 2 40.29105676 -104.9155843 4.29 3.82 3.20 Unnamed Drainage 1 An unnamed intermittent drainage that connects to the Hillsboro Ditch (see Hillsboro Ditch) 5 -foot -wide open water Weld / 2 40.2912629 -104.9153763 4.29 0. I 1 0.26 W64 A wetland swale that connects to Unnamed Drainage 1 Wetland swale Weld / 2 40.287400988 - 104.9164753 4.29 1.16 1.60 Unnamed Pond 20 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 2 40.2827438 -104.9134755 4.29 1.12 Farmers Extension Ditch An irrigation ditch that terminates in agricultural land southeast of the intersection of County Roads 40 and 17 15 -foot -wide concrete channel with open water Weld / 2 40.28222291 -104.9141287 4.29 0. I A 0.14 W21 An isolated wetland with no outlet to waters of the U.S. Wetlands within artificially constructed pond Weld / 2 40.25563519 -104.9149124 4.31 4.32 0.93 Unnamed Pond 21 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 2 40.25449852 -104.9146279 1. ;1 .72 Unnamed Pond 56 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.255653323 -104.91700401 I I 0.70 unnamed Pond 57 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water A\ eld /N A 40.255577147 -104.91757506 1..A I 0.7 7. W22 An unnamed intermittent wetland drainage that connects to B L Swift Reservoir, which drains into two ditches connecting to the South Platte River (TNW) 10- to 75 -foot- wide cattail wetland drainage Weld / 2 40.24607949 -104.9137375 1. 1 s. 06 1.63 \A .1; A wetland drainage that flows into Unnamed Pond 23 (see Unnamed Pond 23) 150 -foot -wide cattail wetland drainage Weld / 2 10.22878449 -104.9151262 4.32 2.91 1.76 1 n named Pond 22 A pond that drains into an unnamed perennial drainage connecting to the South Platte River (TNW) Open water pond Weld / 2 40.22839121 -104.9124841 4.32 1. R 1 7. I 0 1 A-11 W etland II) / Drainage Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) acreage in 'I «'P Corridor lcreage in Stud.' Butler Unnamed Ditch 7 An unnamed dry concrete ditch that terminates in agricultural land west of County Road 17 with no outlet to waters of the U.S. Dry concrete ditch Weld / 2 40.21407666 -104.9147492 4.33 0.09 0.18 W24 A wetland within a roadside drainage that connects to St. Vrain Creek (TNW), which connects to the South Plane River (TNW) 10 -foot -wide cattail wetland within a roadside drainage Weld / 1 40.20437776 -104.9101613 4.33 1.12 0.16 Unnamed Pond 58 A pond adjacent to St. Vrain Creek Artificially constructed pond adjacent to St. Vrain Creek Weld / N/A 40.20122539 -104.91413019 4.33 0.70 St. Vrain Creek A creek (TNW) that connects to the South Plane River (TNW) 50- to 200 -foot- wide creek Weld / I 40.20310133 -104.9075154 4.33, 4.34 4.3 5 1.36 W25 A wetland adjacent to St. Vrain Creek (TNW) Cattail wetlands along St. Vrain Creek Weld / 1 40.20261375 -104.9065912 4.33-4.35 0.50 3.19 \k 26 A wetland in an artificially created depression adjacent to St. Vrain Creek (TNW) Wetlands within an artificially created depression Weld / 1 40.20363125 -104.9054504 4.33, 4.34 2.09 \\ 27 A wetland drainage that connects to St. Vrain Creek (TNW) Cattail wetland drainage Weld / 1 40.20490889 -104.903834 4.34 2.91 1.05 \\'2i; A wetland depression with a possible connection to W26, which connects to St. Vrain Creek (TNW) Cattail and plains cottonwood wetlands within a man-made depression Weld / 1 40.20284708 -104.9031833 4.34 6.23 W29 A wetland that abuts Last Chance Ditch, which connects to St. Vrain Creek (TNW) Cattail wetland abutting Last Chance Ditch Weld / 1 40.2004903 -104.9050854 4.34, 4.35 0.28 Last Chance Ditch A ditch that connects to St. Vrain Creek (TNW) 10 -foot -wide ditch \\ eld / 1 40.19580772 -104.9049053 4.33-4.35 0.49 0.16 Unnamed Ditch 11 Ditch that connects to Last Chance Ditch (see Last Chance Ditch) 2 -foot -wide ditch Weld / 1 40.18757981 -104.9053215 4.34-4.36 0.21 0.07 Unnamed Pond 23 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.2007014 -104.9005639 4.34, 4.35 - 0.99 A-12 W etland I I) / Drainage 'Name Proximity to TNW, RPW, Isolated. or Proximity to a Non-Itl'N1 Site Description Count/ Permitting; Segment* Latitude Longitude Figure umhcr(s) Acreage in I %%P Corridor Acreage in Stud Buffer \A 30 A wetland that abuts Last Chance Ditch, which connects to St. Vrain Creek (TNW) Cattail wetland abutting Last Chance Ditch Weld ' I 40.19935454 -104.9057269 4.34, 4.35 1.87 ft7t, Unnamed Pond 24 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / I 40.19800251 -104.9062946 4.34, 4.35 2.68 6.71 Unnamed Ditch 8 A ditch with a connection to St. Vrain Creek (TNW) Ditch with 3 -foot- wide open water Weld / 1 40.20459704 -104.8973431 4.34 0.33 0.1? Unnamed Ditch 9 A ditch with a connection to St. Vrain Creek (TNW) Ditch with 3 -foot- wide open water Weld / I 40.20354084 -104.8969447 4.34 0.05 Unnamed Pond 25 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.19597724 -104.904024 4.34, 4.35 0.10 Unnamed Pond 26 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.19591773 -104.9030275 1.31. 1.35 3.65 Unnamed Pond 27 An isolated gravel pond with no outlet to waters of the U.S. Artificially constructed pond with open water \\ cid 1 40.19429861 -104.9033722 4.34, 4.35 6.63 W3 I A wetland adjacent to Last Chance Ditch (see Last Chance Ditch) Cattail wetlands along Last Chance Ditch Weld / 1 40.1834601 -104.9057472 4.35, 4.36 0.76 0. ,7 Unnamed Pond 28 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / I 40.18383504 -104.9049276 4.35. 4.36 0.39 Unnamed Lateral From Last Chance Ditch An irrigation ditch that terminates in agricultural land south of County Road 28 east of the TWP corridor and study buffer Dry concrete ditch with no water Weld / 1 40.18176153 -104.9040216 4.36 0.09 0.11 Unnamed Pond 59 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.178099489 -104.9007891 1.36 0.83 Lupton Bottom Ditch A ditch that receives water from the South Platte River (TNW) and flows northwest and terminates in agricultural land southeast of the intersection of County Roads 26 and 15 6 -foot -wide ditch _ Weld / 1 40.17389702 -104.9040182 4.36 0,50 0.50 A-13 Wetland Ill / Drainage Name proximity to TNW, RPW, Isolated, or proximity to a Non-RPW Site Description ('ounty/ Permitting Segment* Latitude Longitude Figure Niinilie�.1,1 Acreage in TWP Corridor Acreage in Study Buffer W72 Wetland swale with potential connection to Lupton Bottom Ditch Wetland swale Weld / N/A 40.168653677 -104.90049025 1. 1.29 W73 An isolated wetland with no surface connection to waters of the U.S. Wetland depression Weld / N/A 40.164427771 -104.90070896 4.37 0.43 Unnamed Pond 29 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.16328481 -104.9048882 4.37 0.09 Unnamed Pond 30 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.160711 -101.9051774 4.37 0.05 Coalridge Ditch A ditch that connects to Coalridge Waste Reservoir, which connects to a ditch flowing to the South Platte River (TNW) 10- to 15 -foot- wide ditch Weld / 1 40.1441601? -104.9047412 4.37, 4.38 4.98 1 76 Unnamed Pond 31 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.14939021 -104.9069334 4.37 0.05 0.07 i Unnamed Pond 60 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.103917577 -104.90280380 4.40 0.16 0.1 ; Stan IQ. Ditch A non-RPW concrete -lined ditch that connects to Coalridge Ditch (see Coal Ridge Ditch) Dry concrete -lined ditch Weld / 1 10.10153721 -104.9052776 4.40 0.08 0.1X Stanley Lateral Ditch A non-RPW concrete lined ditch that terminates in uplands east of County Road 21 Dry concrete -lined ditch Weld / 1 40.09051778 -104.9050571 4.40, 4.41 0.10 0.1X Little Dry Creek A creek (RPW) that connects to the South Platte River (TNW) Perennial drainage Weld / 1 40.06944707 -104.9049418 4.42 0.86 0 6 I Bull Ditch A concrete -lined ditch that terminates in uplands east of County Road 21 Concrete ditch with 2 -foot -wide open water Weld / 1 40.05040336 -104.9050669 4.43 0.06 0. I ; Unnamed Pond 32 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water \ cid / 1 40.04843013 -104.9067105 4.43 0.89 Unnamed Pond 33 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.04774677 -104.9073065 4.43 0.91 ' S A-14 N1 etland ID / DrainageTSite Name Proximity to TNW, RPW, isolated, Or Proximity to a' Son-RPW Description County/ Permitting Segment* Latitude Longitude Figure \umber(~) Acreage in "I'��'P Corridor Acreage in Stud) Buffer I nnamed I'ond 3 1 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld 1 10.0 171759{ -104.9035684 1.43 0.16 Unnamed Pond 35 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / 1 40.04605707 -104.905356 •1. H 0.15 W32 A wetland depression with no outlet to waters of the U.S. Cattail depression Weld / 1 40.0439918 -104.905768 4.43 0.74 0.28 W33 A wetland within an unnamed intermittent drainage that connects to Unnamed Ponds 37 and 38 (see Unnamed Pond 37 and Unnamed Pond 38) Cattail and Baltic rush wetland drainage Weld / 1 40.04028229 -104.9065435 11.; 1 I) 0.06 Unnamed Pond 36 An irrigation pond that connects to Unnamed Pond 38 (see Unnamed Pond 38) Open water pond Weld / 1 40.04003454 -104.9039911 1.13 1.51 Unnamed Pond 37 An irrigation pond that connects to an unnamed intermittent drainage, which dissipates into uplands east of County Road 17 with no apparent connection to known waters of the U.S. Open water pond Weld / 1 40.04014005 -104.9029434 <1. 4 3 I 7 2.07 Unnamed Pond 61 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.029663326 -104.90786305 4.44 0.28 Thompson Ditch A ditch that connects to the Thompson Reservoir and terminates in the North Star Reservoir (RPW) 6 -foot -wide ditch Weld / 1 40.02797574 -104.9049447 -1.44 0.17 0.29 \\ 3.1 A wetland adjacent to Unnamed Pond 39 Cattail wetland fringe Weld / 1 40.02826055 -104.9041704 1. 1.1 1 I .n 1 Unnamed Pond 38 A pond with a possible connection to the Thompson Ditch (see Thompson Ditch) Open water pond Weld / 1 40.02796277 -104.9035517 1.11 o.1-1 0. 1 I Big Dry Creek A creek that is a perennial tributary to the South Platte River (TNW) 20 -foot -wide creek Weld / 1 40.01650281 -104.9045222 4.44.4.45 1.52 0.71 W36 A wetland that abuts Big Dry Creek (see Big Dry Creek) Spikerush wetland abutting Big Dry Creek - Weld / 1 40.01637019 -104.9046836 — 4.44 0. I I A-15 \\ etland I1) / 1) ► `►inage Name W, Proximity to TNRPW, Isolated, or Proximity to a Non-RP�'4' Site Description County/ Permitting Segment* Latitude Longitude Figure Numbeds) Acreage in TWP Corridor Acreage in Study Buffer \A ;7 A wetland that abuts Big Dry Creek (see Big Dry Creek) Cattail and reed canarygrass wetland abutting Big Dry Creek Weld / 1 40.01550931 -104.9063619 4.44, 4.45 1.78 0.64 W35 Wetland swale connecting to Big Dry Creek (see Big Dry Creek) Wetland swale Weld / N/A 10.014536877 -104.90881061 4.45 0.12 Unnamed Pond 62 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Weld / N/A 40.009838690 -1(11.90855855 4.45 -- 2.10 Unnamed Pond 39 A pond that connects to an unnamed intermittent drainage, which connects to Big Dry Creek (see BiRDry Creek) Open water pond Weld / 1 40.00854825 -104.9070141 4.45 I . I 1 3.30 W38 An unnamed intermittent wetland drainage that connects to Unnamed Pond 40 (see Unnamed Pond 40) Cattail and curly dock wetlands within intermittent drainage Weld / 1 40.00623778 -104.905988 4.45 0.85 W39 An unnamed intermittent wetland drainage that connects to W38, which connects to Unnamed Pond 40, which connects to an unnamed intermittent drainage, which connects to Big Dry Creek, which connects to the South Platte River (TN W) Cattail and Baltic rush wetlands within intermittent drainage Weld / 1 40.00208I 14 -104.9056363 4.15 0.46 Unnamed Drainage 2 An unnamed intermittent drainage that connects to W39 (see W39) Upland vegetated ditch; dry during the 2016 site visits Weld / 1 40.00318174 -104.9037096 4.15 0.19 0.26 Unnamed Pond 40 An unnamed pond within an intermittent drainage that connects to W39 (see W39) Open water pond Weld / 1 40.00097578 -104.9059334 1.15 0.55 W40 , An unnamed intermittent wetland drainage that connects to W39 (see W39) Cattail wetland within intermittent drainage Weld / 1 40.000521 I? -104.9059436 1.15 0.' Unnamed Pond 41 An unnamed pond within an intermittent drainage that connects to W39 (see W39) Open water pond Adams / N/A :9.919.1881: -104.906261 1.15 2 27 0.48 Unnamed Ditch 10 A ditch that has a connection to Signal Ditch 2 -foot -wide ditch Adams / N/A 39.998208600 -104.90015578 4.45 0.17 A-16 Wetland ID / DrainageSite Name Proximity to TNW, RPW, Isolated, Proximity to a Non-RPW Description County/ Permitting Segment* Segment* Latitude Longitude Figure Number(s) Acreage in TWP Corridor Acreage in Stud) Buffer V1, 411 Wetlands within intermittent drainage that connects to W39 (see W39) Cattail wetland within intermittent drainage Adams / N/A 39.99676456 -104.9053416 4.45, 4.46 0.60 0.63 W42 Wetlands abutting Unnamed Pond 42 (see Unnamed Pond 42) Cattail wetland fringe Adams / N/A 39.9953528 -104.9043528 4.46 0.39 0.22 Unnamed Pond 42 An unnamed pond within an intermittent drainage that connects to W39 (see W39) Open water pond Adams / N/A 39.99559995 -104.9047463 4.46 1.1,E 1.65 Unnamed Pond 43 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Adams / N . \ 39.98935519 -104.9027274 1.16 0.6 c W43 Wetlands abutting Unnamed Pond 43 Wetland fringe Adams / N/A 39.98924498 -104.9027763 4.46 0.19 Signal Ditch A ditch that is an extension of the Fanners High Line Canal, which diverts from Clear Creek; however, Signal Ditch appears to terminate in uplands (no hydrologic connection to a water of the U.S.) 3- to 6 -foot -wide with wetland fringe Adams / N/A 39.98748856 -104.9040126 4.46 0.43 0.17 W I 1 Wetlands abutting Signal Ditch (see Signal Ditch) Cattail, sandbar willow wetlands Adams / N/A 39.98766786 -104.9037395 4.46 0.65 0. 41 W45/Unnamed Drainage 3 Intermittent wetland drainage which connects to Todd Creek (see Todd Creek) Cattail wetland drainage \dams ' N 1 39.97607316 -104.9029889 4.47 1 20 0.99 Smith Reservoir A reservoir located along Todd Creek (see Todd Creek) Open water reservoir Adams / N/A 39.976045442 -104.8994633 1 17 0.3 I Todd Creek A creek (RPW) that flows to the South Platte River (TNW) 4 -foot -wide with wetland fringe and wetland swale Adams / N/A 39.97079882 -104.9031827 4 1 .' 0.19 0.12 V% It, Wetlands abutting Todd Creek Cattail, sandbar willow wetland fringe Adams / N/A 39.9708021 -104.9030717 4.47 1.51 1.88 Unnamed Pond 44 Pond with possible outfall into Todd Creek (see Todd Creek) Artificially constructed pond Adams i N/A 39.97050122 -104.9024716 4.47 0.35 W47 Wetlands abutting Unnamed Pond 44 Cattail and plains cottonwood wetlands Adams / N/A 39.97043347 -104.9024644 4.47 0.19 A-17 Wetland 1D / Drainage Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW Site Description Count/ Permitting Segment" Latitude Longitude Figure Number(s) Acreage in 'I W P Corridor Acreage in Stud Butler Lee Lateral A ditch that takes water from Signal Ditch and appears to terminate at an unnamed reservoir with no downstream connection to a known waters of the U.S. 2 -foot -wide open water Adams / N/A 39.94950846 -104.9053773 1.48 0.08 0.07 W48 Wetlands abutting Lee Lateral Cattail Wetland Fringe Adams / N/A 39.94948406 -104.9055865 4.48 0.07 0.15 Unnamed Pond 45 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Adams / N/A 39.94851121 -104.9051791 4.48 0.69 0.26 W49 Wetlands abutting Unnamed Pond 45 Cattail wetland fringe Adams / N/A 39.9486071 -104.9050079 4.18 0.25 0. I I W65 Wetlands along Unnamed Pond 63 (see Unnamed Pond 63) Wetland fringe along pond Adams / N/A 39.947523962 -104.90691085 4.48 0.22 Unnamed Pond 63 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Adams / N/A 9.9474848333 -104.90691254 4.48 0.28 W50 An intermittent wetland drainage which connect to Unnamed Drainage 4 connecting to the South Platte River (TNW) Wetland swale Adams / N/A 39.94568712 -104.9025875 -1.48 0.50 0.4 I Unnamed Pond 46 Pond within an intermittent wetland drainage which connect to Unnamed Drainage 4 connecting to the South Platte River (TNW) Open water pond surrounded by plains cottonwood Adams / N/A 39.9439371 -104.905033 4.48 1.16 1.24 W51 Wetlands abutting Unnamed Pond 46 Sandbar willow wetland Adams / N/A 39.94399773 -104.9049094 4.48 0.72 1.47 W52 An intermittent wetland drainage which connect to Unnamed Drainage 4 connecting to the South Platte River (_TNW) Cattail, Baltic rush wetland swale Adams / N/A 39.94198385 -104.9040282 4.48 0.34 x'53 An intermittent wetland drainage which connect to Unnamed Drainage 4 connecting to the South Platte River (TNW) Cattail wetland swale Adams / N/A 39.93769752 -104.9016837 4.49 0.98 0.30 Unnamed Drainage 4 An intermittent drainage connecting to the South Platte River (TNW) 2 -foot -wide open water Adams / N/A 39.93388854 -104.9030421 4.49 0.11 0.28 W54 Wetlands abutting Unnamed Drainage 4 Wetland fringe Adams / N/A 39.93388073 -104.9029957 4.49 0.20 0.65 A-18 NN etland ID / Drainage Name Proximity to TNW, RPW, isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* latitude longitude Figure Number(s) Acreage in TWP Corridor Acreage in Stud) Buffer Unnamed Pond 47 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Adams / N/A 39.92894677 -104.9035621 4.49 0.04 W55 Wetlands abutting Unnamed Pond 47 Cattail wetland Adams / N/A 39.92900967 -104.9035822 4.49 0.08 W66 Wetland swale with potential connection to Brantner Gulch (see Brantner Gulch) Wetland swale Adams / N/A 39.923685897 -104.90634858 4.49 1.19 Brantner Gulch A gulch that has a connection to the South Platte River (NW) 10 -foot -wide with a 4 -foot wetland fringe on both sides Adams / N/A 39.92153789 -104.9031923 4.49. 4.50 0.27 0.14 W56 Wetlands abutting Brantner Gulch 2 -foot -wide wetland fringe Adams / N/A 39.92155375 -104.9030994 1,49. 1.50 0.32 0.20 W57 An intermittent drainage with a possible connection to the Colorado Agricultural Canal, which connects to the South Platte River (NW) Wetland swale Adams / N/A 39.91367625 -104.9111473 4.50. 4.51 1.50 \158 An intermittent drainage with a possible connection to the Colorado Agricultural Canal, which connects to the South Platte River (NW) Wetland swale Adams / N/A 39.910191 -104.9127552 4.50, 4.51 0.63 u ; ; \A 67 Wetlands with possible connection to the Colorado Agricultural Canal, which connects to the South Platte River (TNW) Wetland swale Adams / N/A 39.91 1704708 -104.90246128 4.50 0.23 W 59 Wetlands with possible connection to the Colorado Agricultural Canal, which connects to the South Platte River (TNW) Wetland swalc Adams / N/A 39.90026892 -104.9172902 4.51, 4.52 0.40 Unnamed Pond 48 An isolated pond with no outlet to waters of the U.S. Artificially constructed pond with open water Adams / N/A 39.90020593 -104.9188676 4.51, 4.52 0.11 W60 Wetlands abutting Unnamed Pond 48 Wetland fringe Adams / N/A 39.90009691 -104.9187841 4.51, 4.52 0.28 \\ '61 Wetlands with possible connection to the Colorado Agricultural Canal, which connects to the South Platte River (TNW) Wetland swale Adams / N/A 39.89964355 -104.9181802 4.51, 4.52 0.01 A-19 Wetland 11) / Drainage Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in 7 �� P Corridor Acreage in Study Buffer Colorado Agricultural Canal A ditch that connects to the Lower Clear Creek Canal, which connects to Brantner Ditch, which has an eventual connection to the South Platte River. The Colorado Agricultural Canal has been previously determined to be a jurisdictional waters of the U.S. Open water ditch Adams / N/A 39.89896693 -104.9172758 4.50, 4.51 0.20 1.48 W68 Wetland abutting the Colorado Agricultural Canal, which connects to the South Platte River (TNW) Wetlands abutting ditch Adams / N/A 39.897194322 -104.91939926 4.51. 4.52 1.71 Lower Clear Creek Canal A ditch that connects to Brantner Ditch, which has an eventual connection to the South Platte River Canal Adams / N/A 39.898364445 -104.91554790 4.51, 4.52 0.50 Grange Hall Creek A creek (RPW) that flows to the South Platte River (TNW) Stream with wetland vegetation throughout Adams / N/A 39.89404323 -104.949826 4.53-4.55 1.13 0.56 W62 Wetlands abutting Grange Hall Creek Wetland fringe Adams / N/A 39.89391615 . -104.9506136 4.53-4.55 1.53 2.72 Unnamed Drainage 5 A drainage with a possible surface connection to Grange Hall Creek (RPW) 3 -foot -wide OHWM Adams / N/A 39.89380958 -104.9545437 4.53 0.08 0.13 Unnamed Pond 49 Artificially constructed pond with possible connection to Grange Hall Creek Open water pond Adams / N/A 39.89660964 -104.9474076 1.53 1.91 1.78 Unnamed Pond 64 Artificially constructed pond with possible connection to Grange Hall Creek Open water pond Adams / N/A 39.892674817 -104.93689790 4.53 - 0.60 Unnamed Pond 50 Artificially constructed pond with possible connection to Grange Hall Creek (RPW) Open water pond Adams / N/A 39.88587207 - 101.9581 105 1.5 1 I n8 Unnamed Pond 51 Artificially constructed pond with possible connection to Grange Hall Creek (RPW) Open water pond Adams / N/A 39.88541065 -1 0.1.9 5 71957 -1.54 0.17 Unnamed Pond 65 Pond along Grange Hall Creek (RPW) Open water pond Adams / N/A 39.883808257 -104.96279597 4.54, 4.55 0.54 Unnamed Pond 66 Pond along Grange Hall Creek (RPW) Open water pond Adams / N/A 39.880427073 -104.97077159 4.55 5.90 Wetland II) / Drainage Name Proximity to TNW, RPW, Isolated, or Proximity to a Non-RPW Site Description County/ Permitting Segment* Latitude Longitude Figure Number(s) Acreage in TWP Corridor Acreage in Stud) Buffer W69 Wetland fringe along Unnamed Pond 66, which is along Grange Hall Creek (RPW) Wetland fringe Adams / N/A 39.880455615 -104.97158249 4.55 (L62 Unnamed Pond 67 Pond along Grange Hall Creek (RPW) Open water pond Adams / N/A 39.880278892 -104.97403715 4.55 I .ft W70 Wetland fringe along Unnamed Pond 67, which is along Grange Hall Creek (RPW) Wetland fringe Adams / N/A 39.880088635 -104.97481617 4.55 I .? 5 MI Wetland fringe along Unnamed Pond 68, which is along Grange Hall Creek (RPW) Wetland fringe Adams / N/A 39.879682348 -104.97612897 .1 55 i).08 Unnamed Pond 68 Pond along Grange Hall Creek (RPW) Open water pond Adams / N/A 39.879593839 -104.97628079 4.55 0.32 *1 = Weld County Permit Application 1 — 168th Avenue to just north of the St. Vrain River. 2 = Weld County Permit Application 2 — just north of the St. Vrain River to the southern political boundary of Windsor. 3 = Weld County Permit Application 3 — the Weld County side of County Road 13, between the southern political boundary of Windsor and the proposed tank location. 4 = Larimer County Permit Application 1— all of Larimer County from East Larimer County Road 14/Weld County Road 50 to WSSC No. 4. N/A = not applicable — outside of TWP corridor and/or in Adams County. APPENDIX B CULTURAL RESOURCES IN THE TWP CORRIDOR AND STUDY BUFFER Table B -l. Previous cultural resource surveys intersecting the TWP corridor and study buffer. OAHP* Survey No. Report Title Resources Identified in TWP Corridor / Study Buffer Intersects TWP Corridor or Study Buffer AM.AE.NR2 Brantner Gulch 404 Permit Area, Adams County, Colorado None Both AM.CH.NR20 Cultural Resource Investigations for the 120th Avenue Extension Project, Adams County, Colorado None Both AM.CH.NR3I Paleontological Technical Report: Thornton Parkway at Washington Street Categorical Exclusion Project, City of Thornton, Adams County, Colorado None Roth AM.AE.R 10 Cultural Resource Inventory Grange Hall Creek 108th Avenue to Riverdale Road, Thornton, Adams County None Study buffer only AM.CH.R23 East 120th Avenue Extension from North Quebec Street to U.S. 85, Adams County None Both AM.CH.R59 120th Avenue Expansion, Holly Street to Quebec Street: Cultural Resource Inventory, Adams County, Colorado (STU M286-015)(22238252.00001) 5AM 1867.1 Roth AM.LG.R17 Class III Cultural Resource Inventory of the Adams None Roth County LTE Broadband Network, Thornton, Colorado AM.LG.R2 An Archaeological Survey of the Area Affected by the Northglenn Water Management Program None Roth LR.AE.RI Dry Creek Drainage Improvement Project, Larimer County, Colorado: Results of an Intensive Cultural Resource Inventory (22236040.06000) 5LR962.2, 5LR10767 Both LR.E.RI 1 A Class III Cultural Resource Inventory of the Tri-State Richard Lake to Waverly Transmission Line, Larimer County, Colorado 5LR1731.14, 5LR8932.6, 5LR12569, 5LR12570, 5LR12574.1 Both LR.LG.R13 Agriculture in the Fort Collins Urban Growth Area, 1862-1994 (CLG Project 08-93-80042.7), Larimer County, Colorado None Both MC.AE.R24 Suncor Energy (U.S.A.) Pipeline Company Rocky Mountain Crude System Expansion Pipeline Project: Class III Cultural Resource Inventory Laramie County, Wyoming and Weld and Adams Counties, Colorado 5AM472.17, 5AM472.26 Both MC.CIFR141 Project FC 014-2(3) 1-25 East Cultural Resources Report for Historical Resources Larimer and Weld Counties, Colorado 5LR863, 5WL844 Both MC.CH.R157 Historic Resources Survey Report: E-470 Segment IV, 120th Avenue to 1-25 North None TWP corridor only \'IC.C1 .R175 An Intensive Archaeological Resource Inventory of Proposed Safety Improvements on Us Highway 287 and State Highway 66, Larimer and Weld Counties, Colorado (STA-R400-173) 5WL3007 Both MC.CII.R3 Final Report of Cultural Resource Inventory for the Proposed E-470 Corridor, Douglas, Arapahoe, Denver, Broomfield, and Adams Counties, Colorado None TWP corridor only B-1 OAHP* Survey No. Report Title Resources Identified in "1'WP Corridor / Study Buffer Intersects TWP I Corridor or Studs Buffer \IC.CH.R6 E-470 Beltway Survey Report: Historic Resources, Douglas, Arapahoe, Denver, Broomfield, and Adams Counties, Colorado None Roth MC.CH.R96 A Cultural Resource Survey of Interstates 25, 70, 225, and 270, U.S. Highways 34 and 160, and State Highways 13 and 470, for the Proposed Adesta Communications Fiber Optic System, Colorado (C S W00-102) 511(503. 5I R850 Roth MC.CPO.R27 Survey Report, Weld County, Colorado Farm and Ranch Inventory, Weld and Broomfield Counties None Roth MC.F.R70 KN Wattenberg Transmission, L.L.C. Front Runner Pipeline, Adams, Weld, (and Broomfield) Counties, Colorado, Cultural Resource Inventory Report #4: Erie Lateral and Tri-Town Lateral Southeast of Erie to the Amoco West Dougan South Mainline, Class III Cultural Resource Inventory (FERC CP98-49-000) 5WL1969.32 Roth MC.E.R73 A Class III Inventory of the Proposed Timnath to Black Hollow Transmission Line Rebuild in Larimer and Weld Counties, Colorado 5WL3167.1, 5LR8932.5, 5LR8932.6, 5LR9458. I, 5WL5592.1 Roth MC.t.R80 Class III Cultural Resource Inventory of the Beaver Creek -Hoyt -Wiggins -Erie Transmission Line Rebuild Project in Morgan and Weld Counties, Colorado and Addendum to Class III Cultural Resource Inventory of the Beaver Creek -Hoyt -Wiggins -Erie Transmission Line Rebuild Project in Morgan and Weld Counties 5WL2547.2 5WL3154.2 Roth E M1('.I ..R83 Kinder Morgan Colorado Lateral Pipeline Project, Rockport to Greeley, Weld and Larimer Counties, Colorado: Results of an Intensive Pedestrian Cultural Resources Survey. Kinder Morgan Colorado Lateral Pipeline Project, Pipeline Laterals, Weld County, Colorado: Results of an Intensive Pedestrian Cultural Resources Survey Addendums 1, 2, 3, 4, 5, 6, and 7 5WL3167, 5LR11790 Ruth MC.FC.NR6 Paleontological Review and Survey of Selected Sections Along the 1-25 Right of Way for Adesta/CDOT I-25 Fiber Optic Project from Pueblo, Colorado to the Wyoming State Line, Pueblo, El Paso, Douglas, Adams, Larimer and Weld Counties, Colorado None Both \1( . R. R 1.1 Cultural Resource Inventory of the Southern Water Supply Pipeline, Fort Lupton Branch, Boulder and Weld Counties, Colorado 5WL6550. L6550. 5WL655 I. 5WL6557 I3oth WL.CH.NR44 An Intensive Archaeological Resource Inventory of the Proposed St. Vrain River Realignment on State Highway 66 West of Gowanda , Weld County, Colorado (CDOT # STA 0661-009) 5WL1975.3, 5WL3007 Roth WL.CH.NR50 An Intensive Archaeological Resource Inventory of the Big Thompson River Bridge on Weld County Road 13, Weld County, Colorado (CDOT # BR 0341-069) None TWP corridor only WI .CH.NR55 An Intensive Cultural Resources Inventory for the Replacement of the St. Vrain River Bridge on State Highway 66, Weld County (CDOT Project FBR 006a- 002/STA 066a-001, SH 66 at St. Vrain Bridge) 5WL3007 Both B-2 OAHP* Survey No. Report Title Resources Identified in TWP Corridor / Study Buffer Intersects TWP Corridor or Study Buffer WL.CH.NR9 Archaeological Survey of Ehrlich Materials Pit Weld County, Colorado (IR 025-3(85)) None Both W I..CH. R40 Abandonment Exemption of the Welty Branch of the Great Western Railway in Johnstown, Weld County. Colorado: Results of Section 106 Review 5 W L841.15 Both W I .i),\.1(5 A Survey of the Cultural Resources of the Fort Collins- Ault 230kv Transmission Line None Roth W L. R.N R 19 Cultural Resource Survey for a Commercial and Residential Development Application to the Northern Colorado Water Conservation District in Weld County, Colorado None Both WL.SC.NRI Underground Pipeline None Study buffer only WL.SC.NR39 Weld County Limited Results Cultural Resources Survey Report on Private Lands -Phillip Camenisch (NRCS #748B05081 R8) None Study buffer only WL.SC.NR40 Weld County Limited Results Cultural Resources Survey Report on Private Lands -Berry Farms, LLC (NRCS #748B05081 RA) \one Study buffer only 'Only those surveys where GIS information is available and the extent is possible to portray are shown on I'igures 8.1 - 8.23. Table B-2. Previously identified cultural resources in the TWP corridor and study buffer. Resource Number Resource Name / Type NRHP Eligibility Intersects TWP Corridor or Study Buffer Adams County 5AM 130* Platte River Trail Field not eligible TWP corridor only 5AM 1 118 Thede Farmhouse, Stonehocker Farm, and Mcallister Farm Listed on National Register Study buffer only' 5AM 1867.1 Rullo/Roullo Ditch # 1 - segment Officially not eligible TWP corridor only 5AM472.17 Union Pacific Railroad - Dent Branch Supports eligibility of entire linear resource Both 5AM472.26 Union Pacific Railroad Dent Branch - segment Supports eligibility of entire linear resource Both Larimer County 5LR503* Loveland - Greeley Canal Officially eligible Both 5LR503.2* Loveland - Greeley Canal, Greeley and Loveland Ditch Canal and the Chubbuck Ditch - segment Officially eligible Both 5LR850 Great Western Railroad Officially needs data Both 5LR850.3* Great Western Railroad - segment (Loveland to Officer Junction to Hardman to Johnstown) No assessment given on form Both 5LR850.4 Great Western Railroad - segment (Windsor to Officer Junction) No assessment given on form Roth 5LR863* Larimer-Weld Canal, Eaton Ditch, Eaton Canal Officially eligible Both 5LR876* Loveland Revilo Homestead Field not eligible TWP corridor only 5LR962.2 Dry Creek Ditch, Jackson Ditch (segment) Officially needs data TWP corridor only 5LR995 Lake Canal Officially not eligible Both 5LR1731.14 Colorado and Southern Railway Supports eligibility of entire linear resource Both 5LR8932.5 Larimer County Canal/Ditch (segment) Officially eligible TWP corridor only' 5LR8932.6 Larimer County Ditch Supports eligibility of entire linear resource Both 5LR9385 Airport -Kodak Transmission Line Field not eligible Both 5LR9458 Cheyenne to Richard Lake Transmission Line Officially not eligible Both 5I,R9458.I Cheyenne to Richard Lake Transmission Line - segment Officially not eligible Both 5LR9489 Larimer County Canal Bridge, B -16 -AL Officially not eligible TWP corridor only 5LR10691 Gregory House, Schureman Residence, Yancy Farm Officially eligible for the State Register TWP corridor only 5LR10767 Historical archaeology Officially needs data TWP corridor only 5LR11360 Boekel Farm No assessment given on form Both 5LR11400* Colorado State University Agricultural Research, Development And Education Center Officially not eligible Study buffer only 5LR11790 Officer Junction Officially not eligible Both SLR 12570 Annex No. 8 Reservoir Officially eligible Both 5 LR 12574.1 * Richard Lake to Waverly Transmission Line Does not support eligibility of entire linear resource Both SLR 132I2 Uhrich Farmyard (Rural Historic Landscape) Officially eligible Both Weld County 5WL782* Elwell Store Field not eligible Roth 5WL790 Elwell Cemetery Field not eligible Roth B-4 Resource Number Resource Name / Type NRHP Eligibility Intersects TWP Corridor or Study Buffer 5WL841 Great Western Railroad Officially eligible Roth 5WL841.15 Great Western Railroad, Welty Branch - segment Field eligible I3oth 5WL844* Larimer-Weld Canal, Eaton Ditch, Eaton Canal Officially eligible i Both 5WL860 Bunyan Siding (Great Western Railroad) No assessment given on form Both 5WL868 Clark Siding (Great Western Railroad) No assessment given on form Study buffer only 5WL869 Pulliam Siding (Great Western Railroad) No assessment given on form Both 5WL898 Loveland Greeley Canal Officially eligible Both 5WL1073* Hillsboro Stage Station Field not eligible Both 5WL1076 Gowanda Railroad Siding (Union Pacific Railroad, Dent Branch) Officially not eligible Both 5WL1526* South Platte Supply Canal, Coalridge Ditch Officially not eligible Both 5WL1587 Historical farm Field not eligible TWP corridor only 5WL1969.32 Denver and Boulder Valley Railroad Field not eligible Both 5WL1975.3 Last Chance Ditch (segment) Officially eligible TWP corridor only 5WL2189.8 Unnamed Ditch off of St. Vrain Creek — segment Officially not eligible Both 5WL2189.9 Unnamed Ditch off of St. Vrai.n Creek — segment Officially not eligible Both 5WL2547.2 Big Dry Creek Ditch (segment) Field eligible Both 5WL3007 St. Vrain River Bridge, D -17 -AK Officially not eligible TWP corridor only 5WL3043 Sullivan Ditch Bridge, We1017.0-022.0a Field not eligible TWP corridor only 5WL3044 Sullivan Ditch Bridge, Wel017.0-022.0b Field not eligible TWP corridor only 5WL3049 Sullivan Ditch Bridge, We1022.0-017.0a Field not eligible Study buffer only 5WL3071 Bridge, We1068.5-013.0a Field not eligible Study buffer only 5WL3153 Airport -Kodak Transmission Line Field not eligible Both 5WL3154.2 Hoyt to Terry Street Transmission Line - segment Does not support eligibility of entire linear resource Both 5WL3167 Cheyenne to Richard Lake Transmission Line Officially not eligible Roth 5WL3167.1 Cheyenne to Richard Lake Transmission Line - segment Officially not eligible Both 5WL4823 Lake Canal Field not eligible Both 5WL5592.1 Larimer County Canal/Ditch in Weld County (segment) Officially eligible TWP corridor only 5WL6550 Historical archaeology Field not eligible TWP corridor only 5WL6551 Historical archaeology Field not eligible TWP corridor only 5WL6557 Historical archaeology Field not eligible TWP corridor only 'These resources arc not shown on Figures 8.1 8.23 because (US information was not available for these resources. Table B-3. Cultural resources in the TWP corridor and study buffer that have not been previously documented or evaluated. Property Type / Name Address / Location Built Intersects 1 W P Corridor or Study buffer Adams County Single-family residences Thornton Subdivision Blocks 67.68.69. and 69A Dorothy Blvd., Ruth Dr., Rowena St., E 95th Ave. Thornton, Colorado 80229 1955 F uth Agricultural property Northeast corner of E 100th Ave. and E 101st Ave. Thornton, CO 80229 1945 Both Agricultural property 1400 E 100th Ave., Thornton, CO 80229 1953 TWP corridor only Mead Lateral/Farmers Extension Ditch North and south sides of E 100th Ave. between Washington St. and Steele St.. Thornton, CO 80229 1900 Both Agricultural property 1981 E 100th Ave., Thornton, CO 80229 1901, 1963 TWP corridor only Multi -family residences 2501 E 104th Ave., Thornton, CO 80229 1939 Both Single-family rural residence 10950 Fox Run Pkwy., Northglenn, CO 80233 1901 TWP corridor only Thornton Fire Department Sta. 3 11257 Birch Dr., Thornton, CO 80233 1970 TWP corridor only Single family rural residences 5771 E 112th Ave., Thornton. CO 80233 1930, 1958 TWP corridor only Colorado Agricultural Canal (5AM81) West side of Riverdale Rd. at E. 112th Ave., Thornton, CO 80233 1860s Both Lower Clear Creek Canal (5AM80) East side of Riverdale Rd. from E. 112th Ave. to E. 120th Pkwy., Thornton, CO 80233 1860s Study buffer only Rural residential property 11020 Riverdale Rd, Thornton, CO 80233 1968-1971 Study buffer only Agricultural property 6180 E I I2th Ave., Thornton, CO 80233 1920 TWP corridor only Rural residential property 11220 Riverdale Rd, Thornton, CO 80233 1911-1960 Study buffer only Rural residential property 11291 Riverdale Rd., Thornton, CO 80233 1943 Study buffer only Rural residential property 11375 Riverdale Rd, Thornton, CO 80233 1945 Study buffer only Agricultural property 11470 Riverdale Rd., Thornton. CO 80233 1950 Study buffer only Agricultural property 11500 Riverdale Rd., Thornton, CO 80233 1901 Study buffer only Rural residential property 11445 Riverdale Rd., Thornton, CO 80233 1956 Both Agricultural property 11395 Riverdale Rd., Thornton, CO 80233 1904, 1960 , Both Agricultural property 7135 E 120th Ave., Brighton, CO 80602 1901. 1944 Both Agricultural complex ruins , 12501 Quebec St., Brighton, CO 80602 Ca. 1930s TWP corridor only Rural residence 12510 Quebec St., Brighton, CO 80602 1968 Both Agricultural property 12500 Quince St., Brighton, CO 80602 1933 Both Rural residence 12510 Quince St., Brighton, CO 80602 1963 Both Rural residence 12520 Quince St., Brighton, CO 80602 1963 Both Agricultural property 12610 Quince St., Brighton, CO 80602 1957 Both Agricultural property 12970 Quebec St., Brighton, CO 80602 1909 TWP corridor only Single-family residences Aylor Subdivision, lots 1, 4, 5, 6 , west side of Quebec St. north of 136'h Ave., Thornton, CO 80602 1964-1972 TWP corridor only Rural residence 13890 Quebec St., Thornton, CO 80602 1961 TWP corridor only I Iistorical archaeology -15848 Quebec St., Thornton, CO 80602 ('a. 1930- 1950 TWP corridor only Rural residence 7650 E. 160th Ave., Thornton. CO 80602 1968 Study buffer only B-6 Property Type I Name Address / Location Built Intersects TWP Corridor or Study buffer Farmers Highline Canal (5AM1291) Intersection of Quebec St. and E 16O Ave., Sections 4 and 5 of T1 S-R67W, Brighton, CO 50602 1886 Both Agricultural property/historical archaeology 16100 Quebec St., Brighton, CO 50602 Unknown Both Signal Reservoir Number 1 Southwest of Quebec St. and E 168th Ave., NW '/. Section 4, TIS-R67W, Brighton, CO 80602 1911 Both Weld County Rural residence 33 CR 17, Brighton, CO 80603 1965 TWP corridor only Agricultural property 7865 CR 2, Brighton, CO 80603 1934 Both Rural residence 7777 CR 2, Brighton, CO 80603 1955 Study buffer only Rural, single-family residences Jacobucci Sub, lots 1, 2, 3, 4, west side of CR 17 north of CR 2, Brighton, CO 80603 1969, 1970 Both Rural residence 333 CR 17, Brighton, CO 80603 1969 Both Agricultural property 483 CR 17, Brighton, CO 80603 1960-1970 TWP corridor only Agricultural property 1173 CR 17, Brighton, CO 80603 1919 Both Yoxall Ditch (5WL5573) NE 'A Section 32, T1N-R67W, Southeast corner CR 17 and CR 4 1896 Both Thompson Ditch (5WL2547) L2547) North %2 Sections 28 and 29, T1 N- R67 W,southeast corner of CR 17 and CR 6; Brighton, CO 80603 1865 Both Rural residence 2044 CR 17, Brighton, CO 80603 1960 TWP corridor onl) Agricultural property 2464 CR 17, Brighton, CO 80603 1934 Both Agricultural property 2624 CR 17, Brighton, CO 80603 1909 Both Agricultural property 8206 CR 8, Brighton, CO 80603 1967-1973 Study buffer only Agricultural property 3113 CR 17, Brighton, CO 80603 1932, 1958 TWP corridor only Bull Canal (5WL1966) South 1/2 Sections 16 and 17 T1N-R67W; CR 17 north of CR 8; Brighton, CO 80603 1903 Both Doyle Seepage Ditch NW ''A Section 9, T1N-R67W; southeast of CR 17 and CR 12 intersection, Fort Lupton, CO 80621 1914 Both Agricultural property 8098 CR 14; Fort Lupton, CO 80621 1914 Both Stanley Ditch (5WL1966) S'V2 Sections 32 and 33, T2N-R67W; north of CR 17 and CR 14 intersection; Fort Lupton, CO 80621 1903 Both Coal Ridge Ditch (5WL1526) Sections 28, 29, 32, and 33, T2N-R67W; intersection of CR 17 and 16; Fort Lupton, CO 80621 1859 Both Agricultural property 772 CR 16, Fort Lupton, CO 80621 1942, 1972 Study buffer only Agricultural property 7124 CR 17, Fort Lupton, CO 80621 1920, 1940 TWP corridor only Agricultural property / poultry farm 7900 CR 20, Firestone, CO 80504 1960-1972 Both Agricultural property 10732 CR 17, Firestone, CO 80504 1930 TWP corridor only Agricultural property 10811 CR 17, Firestone, CO 80504 1950 TWP corridor only Agricultural property 11455 CR 17, Firestone, CO 80504 1919 TWP corridor only Agricultural property 7750 26 CR, Firestone, CO 80504 1945-1960 Study buffer only Lupton Bottom Ditch (5WL2652) Sections 4 and 5, T2N-R67W; Section 33, T3N- R67W Intersection of CR 17 and CR 26; Firestone, CO 80504 1863 Both B-7 Property Type / Name Address / Location Built Intersects TWP Corridor or Study buffer Last Chance Ditch and laterals (5WL1975) Sections 28, 29, 32, and 33, T3N-R67W; CR 17 north of CR 26; Platteville, CO 80651 1872 Noth Agricultural Property 12840 CR 17, Platteville, CO 80651 1949 Study buffer only Agricultural Property 8234 CR 28, Platteville, CO 80651 1890, 1972 Study buffer only Buildings associated with Gowanda Railroad siding SW '/ Section 21 and NW %. Section 28, T3N- R67W; north of CR 30 and east of CR 17, Platteville, CO 80651 Ca. 1910- 1950 Both Agricultural property 13187 CR 17, Platteville, CO 80651 1935 "I'WP corridor only Agricultural property 13473 CR 17, Platteville, CO 80651 1890, 1930 TWP corridor only Agricultural property 13634 CR 17, Platteville, CO 80651 1948, 1951 Both Agricultural property 7233 Hwy 66, Platteville, CO 80615 1930-1970 Study buffer only Diamond Reservoir N '/z Section 17, T3N-R67W; southeast of CR 17 and CR 34 intersection; Platteville, CO 80651 1901 Both Agricultural property 7562 CR 38, Johnstown, CO 80534 1900, 1930, 1960 I W I' corridor oils Agricultural property 7571 CR 38, Johnstown, CO 80534 1900, 1959 TWP corridor only Unnamed seep ditch from Minnie Reservoir Section 32, T4N-R67W; northwest of CR 17 and CR 38 intersection; Johnstown, CO 80534 Ca. 1907 Both Farmers Extension Ditch (5WL3148.1) S ''A Section 29, T4N-R67W; northwest of CR 17 and CR 40 intersection; Johnstown, CO 80534 1900 Both Agricultural property 7528 CR 42, Johnstown, CO 80534 1955 TWP corridor only Agricultural property 7375 CR 42, Johnstown, CO 80534 1900, 1949 Both Agricultural property 19943 CR 15, Johnstown, CO 80534 1915-1940 TWP corridor only Agricultural property 20121 CR 15, Johnstown, CO 80534 1910-1963 TWP corridor only Agricultural property 20700 CR 15, Johnstown, CO 80534 1915 Both Rural residence 20765 CR 15, Johnstown, CO 80534 1962, 1967 TWP corridor only Agricultural property 21045 CR 15, Johnstown, CO 80534 1900, 1917 TWP corridor only Ilillsboro Ditch (5WL2590) Sections 17, 18, 19 T4N-R67W; Section 30, T5N- R67W CR 44; south of intersection of CR 1 and CR 54 Johnstown, CO 80534 1861 Both Agricultural property 21452 CR 13, Johnstown, CO 80534 1900, 1980 Study buffer only Agricultural property 6086 W. S. 1g St., Johnstown, CO 80534 1902, 1958 TWP corridor only Agricultural property 6043 Hwy 60, Johnstown, CO 80534 1900 TWP corridor only Agricultural property 6037 Hwy 60, Johnstown, CO 80534 1902-1930 TWP corridor only Agricultural property 23101 CR 13, Johnstown, CO 80534 1932-1947 TWP corridor only Agricultural property 23165 CR 13, Johnstown, CO 80534 1900 TWP corridor only Elwell/Johnstown Cemetery SE '/ Section 1, T4N-R68W; northeast of CR 13 and Colorado Blvd. intersection; Johnston, CO 80534 1902 Both Agricultural property 23898 CR 13, Johnstown, CO 80534 1900 TWP corridor only Agricultural property 23927 CR 13, Johnstown, CO 80534 1938, 1943 TWP corridor only Thompson and Platte Ditch (5WL2587) Section 6, T4S-R67 W; Section 1, T4S-R68W Intersection of CR 13 and CR 14; Johnstown, CO 80534 1865 Both Agricultural property 24202 CR 13, Johnstown, CO 80534 1965-1971 Both I lillsboro Ditch laterals Section 31, T5N-R67W; north of CR 50 and County Line Road intersection; Johnston, CO 80534 Ca. 1900 Both B-8 Property Type / Name Address / Location Built Intersects TWP Corridor or Study buffer Agricultural property 24204 CR 13, Johnstown, CO 80534 1910, 1964 TWP corridor only Agricultural property 6022 CR 52, Johnstown, CO 80534 1909, 1919, 1960 Both Agricultural property 25808 CR 13, Johnstown, CO 80534 1899, 1950 Roth Hill and Brush Ditch Section 19, T5N-R67W; north of CR l and CR 54 intersection; Johnstown, CO 80534 1866 Both Rural residence 26858 CR 13, Johnstown, CO 80534 1961 TWP corridor only Agricultural property 6248 CR 56, Johnstown, CO 80534 1919-1924 Study buffer only Agricultural property 27238 CR 13, Johnstown, CO 80534 1909-1939 TWP corridor only Agricultural property 27292 CR 13, Johnstown, CO 80534 1924, 1966 TWP corridor only Union Pacific Railroad — Dent Branch (5WL1317) L 1317) Section 18, T5N-R67W; north of CR I and CR 56 intersection; Johnstown, CO 80534 1910 Both Farmers Ditch Section 18, T5N-R67W; north of CR 1 and CR 56 intersection; Johnstown, CO 80534 1864 Both Agricultural property 27780 CR 13, Johnstown, CO 80534 1899-1957 TWP corridor only Oklahoma Lake SW '/, Section 6, T5N-R67W; northeast of CR 1 and CR 60 intersection; Johnstown, CO 80534 1890 Both Rural residence 32852 CR 13, Johnstown, CO 80534 1964 TWP corridor only Agricultural property 6114 CR 68.5, Windsor, CO 80550 1899 TWP corridor only Greeley No. 2 Canal (5WL842) Section 18, T6-NR67W; south of intersection of CR 13 and CR 40; Windsor, CO 80550 1870 Both Rural residence 6109 CR 68.5, Windsor, CO 80550 1950 TWP corridor only Agricultural property 33864 CR 13, Windsor, CO 80550 1938 Both Greeley Salt Lake & Pacific Railroad/Colorado & Southern Railroad (5WL1043) Section 7, T6N-R67W; south of CR 13 and CR 72 intersection; Windsor, CO 80550 1880 Both Sections 7 and 18, T7N-R67W; intersection of CR 13 and CR 17; Fort Collins, CO 80524 Both Agricultural property 35106 CR 13, Windsor, CO 80550 1899-1929 TWP corridor only Agricultural property 37162 CR 13, Windsor, CO 80550 1950 Both Agricultural property 38434 CR 13, Windsor, CO 80550 1905-1953 TWP corridor only Larimer and Weld Canal (5WL844) NW % Section 19, T7N-R67W; southeast of CR 13 and CR 80 intersection; Windsor, CO 80550 1879 Both Agricultural property 38568 CR 13, Windsor, CO 80550 1960, 1989 Study buffer only Agricultural property 6154 CR 80, Windsor, CO 80550 1954 TWP corridor only Agricultural property 6148 CR 80, Windsor, CO 80550 1915, 1935 TWP corridor only Agricultural property 6181 CR 80, Windsor, CO 80550 1905-1950 TWP corridor only Agricultural property 39500 CR 13, Fort Collins, CO 80524 1950 TWP corridor only Agricultural property 6153 E. Hwy 14, Fort Collins, CO 80524 1900, 1965 Study buffer only Agricultural property 40898 CR 13, Fort Collins, CO 80524 1900-1961 TWP corridor only Agricultural property 6011 CR 84, Fort Collins, CO 80524 1909, 1935 TWP corridor only Agricultural property 41132 CR 13, Fort Collins, CO 80524 1965, 1971 TWP corridor only Agricultural property 41632 CR 13, Fort Collins, CO 80524 1915-1962 TWP corridor only Agricultural property 42078 CR 13, Fort Collins, CO 80524 1922 TWP corridor only Merrill Seep Lake and associated seep ditches SW '/4 Section 31, T8N-R67W; northeast of CR 13 and CR 86 intersection, Fort Collins, CO 80524 1953 Both Agricultural property 6025 CR 88, Fort Collins, CO 80524 1930 TWP corridor only Cactus Hill Lateral (5WL5593) W '/2 Section 30, T8N-R67W; southeast of CR 13 and CR 90 intersection; Fort Collins, CO 80524 1900 Both B-9 Property Type / Name Address / Location Built Intersects TWP Corridor or Study buffer Larimer County I lillsboro Ditch laterals Section 36 T5N-R68W; north of CR 50 and County Line Road intersection; Johnston, CO 80534 Ca. 1900 Both I lillshoro Ditch (5LR8927) NW 'A Section 25, T5N-R68W; south of intersection of CR 1 and CR 54, Johnstown. CO 80534 1861 Both Agricultural property 9050 E. CR 18, Johnstown, CO 80534 1900 Study buffer only Agricultural property 9063 E. CR 18, Johnstown 80534 1953 Study buffer only Agricultural property 1339 S. CR 1, Johnstown, CO 80534 1901 TWP corridor only Hill and Brush Ditch Section 24, T5N-R68W; north of CR 1 and CR 54 intersection; Johnstown, CO 80534 1866 Both Union Pacific Railroad — Dent Branch (5LR1815) Section 13, T5N-R68W; north of CR 1 and CR 56 intersection; Johnstown, CO 80534 1910 Both Farmers Ditch Section 13, T5N-R68W; north of CR 1 and CR 56 intersection; Johnstown, CO 80534 1864 Both Agricultural property 1209 N CR 1, Johnstown, CO 80534 1966 TWP corridor only Greeley No. 2 Canal Section 13, T6-NR68W; south of intersection of CR 13 and CR 40; Windsor, CO 80550 1870 Both Agricultural property 6805 S. CR 1, Windsor 80550 1915 TWP corridor only Agricultural property 6195 S. CR 1, Fort Collins, CO 80524 1945 TWP corridor only Greeley Salt Lake & Pacific Railroad/Colorado & Southern Railroad (5WL1043) Section 12, T6N-R68W; south of County Line Rd. and E. CR 36 intersection; Fort Collins, CO 80524 1880 Roth Sections 12 and 13, T7N-R68W; intersection of County Line Rd and Hwy 14; Fort Collins, CO 80524 Roth Agricultural_ property 5701 S. CR 1, Windsor, CO 80528 1900 "I W P corridor only Agricultural property 7020 E. CR 40, Windsor, CO 80528 1934 I W4'P corridor only. Agricultural property 3309 S. County Line Rd., Windsor, CO 80550 Ca. 1950 Both Larimer and Weld Canal (5WL844) W 'A Sections 13 and 24, T7N-R68W; intersection of County Line Rd. and E. Prospect Rd.; Windsor, CO 80550 1879 Both Agricultural property 6721 E. CR 44, Fort Collins 80524 1900, 1967 Study buffer only Agricultural property 6932 E. CR 48, Fort Collins, CO 80524 1915 TWP corridor only Agricultural property / dairy 1137 N. CR 1, Fort Collins, CO 80524 Ca. 1920s- 1950s Both Cactus Hill Lateral E %z Section 25, T8N-R68W; southwest of County Line Rd. and E. CR 54 intersection, Fort Collins, CO 80524 1900 Both Cowen Lateral Sections 13 and 24, T8N-68W; west of County Line Rd. and E. CR 56 intersection; Fort Collins. CO 80524 Ca. 1900 Both, tank site Windsor Ditch (5LR8934) Sections 13 and 24, T8N-68W; west of County Line Rd. and E. CR 56 intersection; Fort Collins, CO 80524 1873 Both, tank site Agricultural property 5116 E. CR 56, Fort Collins, CO 80524 1905 TWP corridor only Larimer County Ditch (5LR8932) Sections 14, 15, 19, 22, 23, and 24, T8N-R68W; west of E. CR 56 and I-25 intersection; Fort Collins, CO 80524 _ 1881 Both B-10 Property Type / Name Address / Location Built Intersects TWP Corridor or Study buffer Agricultural property 3420 E. CR 56, Fort Collins, CO 80524 1910 TWP corridor only Agricultural property 4 4721 N. CR 11, Fort Collins, CO 80524 1957 TWP corridor only Agricultural property 1524 E. CR 56, Fort Collins, CO 80524 Ca. 1910 TWP corridor only Historical archaeology 1046 E. CR 56, Fort Collins, CO 80524 Ca. 1905 TWP corridor only Agricultural property 451 E. CR 56, Fort Collins, CO 80524 1904 TWP corridor only Bartels Reservoir W 'A Section 21, T8N, R68W; southeast of E. CR 56 and Giddings Rd. intersection; Fort Collins, CO 80524 1953 Both Agricultural property 4400 N. CR 9, Fort Collins, CO 80524 1925 TWP corridor only Agricultural property 3824 N. CR 11, Fort Collins, CO 80524 Ca. 1910 TWP corridor only Rural residence 4400 N. CR 13, Fort Collins, CO 80524 1964 TWP corridor only Rural residence 4324 N. CR 13, Fort Collins, CO 80524 1965 TWP corridor only Rural residence 4320 N. CR 13, Fort Collins, CO 80524 1968 TWP corridor only Agricultural property 4304 N. CR 13, Fort Collins, CO 80524 1920 TWP corridor only Agricultural property 4128 N. CR 13, Fort Collins, CO 80524 1922 TWP corridor only Agricultural property 4207 N. CR 13, Fort Collins, CO 80524 1949 TWP corridor only Rural residence 401 Evans Dr., Fort Collins, CO 80524 1965 TWP corridor only Single-family dwellings Evans Subdivision; SW ''A Section 24, T8N- R69W; Fort Collins, CO 80524 1960-1970 TWP corridor only Rural residence 4115 N. Hwy 1, Fort Collins, CO 80524 1960 TWP corridor only Single-family dwellings Subdivision 240868; NW 'A Section 24, T8N- R69W, west side of N. Hwy 1; Fort Collins, CO 80524 1960-1970 TWP corridor only Jackson Ditch (5LR962) E 'A Section 23, T8N-R69W; NW of N Hwy 1 and E. CR 54 intersection; Fort Collins, CO 80524 1961 Both Agricultural property 400 W. Douglas Rd., Fort Collins, CO 80524 1958 TWP corridor only Rural residence 1208 Hillside Ct., Fort Collins, CO 80524 4 1948 TWP corridor only Rural residence 116 E. Douglas Rd., Fort Collins, CO 80524 1955 TWP corridor only Rural residence 120 E. Douglas Rd., Fort Collins, CO 80524 1954 TWP corridor only Outbuildings -114 E. Douglas Ave., Fort Collins, CO 80524 1948 TWP corridor only Agricultural property 4005 N. Highway 1, Fort Collins, CO 80524 1956-1966 TWP corridor only Rural residence 3704 N. Highway 1, Fort Collins, CO 80524 1930 TWP corridor only Rural residence 3716 N. Highway 1, Fort Collins, CO 80524 Ca. 1950s TWP corridor only Rural residence 3916 N. Highway 1, Fort Collins, CO 80524 Ca. 1930 TWP corridor only Agricultural property 400 E. Douglas Rd., Fort Collins, CO 80524 1959 TWP corridor only Cherry Hills Court Subdivision Cherry Hills Ct., Fort Collins 80524 1960s Both NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 Photo 1 - View to the west, representative upland of the study area. .a Photo 2 - View to the southeast, representative Riparian community adjacent to the Little Thompson River. NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 Photo 3 - View to the east, Big Dry Creek. Photo 4 - View to the west, representative Wetland community abutting an open water pond. NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 Photo 5 - View to the east, potential Preble's meadow jumping mouse habitat adjacent to the Cache la Poudre River. NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 Photo 7 - View to the northeast, representative Mixed Upland community adjacent to the Big Thompson River. NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 NATURAL RESOURCES ASSESSMENT THORNTON WATER PROJECT LARIMER, WELD, AND ADAMS COUNTIES, COLORADO MAY 10-12, MAY 16, AND JULY 14, 2016 Photo 11 - View to the east, potential Ute ladies' -tresses orchid and Colorado butterfly plant habitat adjacent to the Big Thompson River. Open House Invitation, Notification Area Map, and Mailing List THORNTON WATER PROJECT OPEN HOUSES Visit with the Project team at any of the following locations to learn about the upcoming pipeline Project in Larimer and Weld Counties. Ask Questions • Get Information • Provide Input n PROPOSED TWP CORRIDOR 25 m r.Y. 25 JI III WELD COUNTY BOULDER COUNTY C Thornton IT NATER PROJECT For more information visit www.ThorntonWaterProject.com and sign up for Project updates or call 720-977-6265. * Monday, November 14 Southwest Weld County Sery 4209 Weld County Rd 24'/2 Longmont, CO 80504 *Wednesday, November 16 Poudre Valley REA 7649 REA Pkwy., Ft. Collins, CO 8052 *Tuesday, December 6 Larimer County Courthouse 200 W. Oak St., Ft. Collins, CO 805 *Thursday, December 8 Johnstown Senior Center 101 Charlotte St., Johnstown, CO 80534 JOIN US ANY TIME! All open houses start at 6:30 p.m. Thornton WATER PROJECT OPEN HOUSES Attend any of our open houses to learn how the Thornton Water Project may affect your property, ask our team members questions about the Project, and provide input. We want to hear from you! $www Thornton WaterPro ject.com 720-977-6265 Thornton Water Project Infrastructure Maintenance Center 12450 Washington St. Thornton, CO 80241-2405 PRESORTED STD U.S. POSTAGE PAID CITY OF THORNTON THORNTON WATER PROJECT OPEN HOUSES Visit with the Project team at any of the following locations to learn about the upcoming pipeline Project in Larimer and Weld Counties. v `o Ask Questions • Gel Information PROPOSED TWP CORRIDOR re ;14 ti P a is wnl taw„ ioallle {Pelf ate Thornton For more information visit www.ThorntonWaterProject.com and sign up for Project updates or call 720.977.6700. • Provide Input REMINDER I+ THERE ARE TWO MEETINGS REMAINING. If you've already attended one of our meetings, thank you for your time and Input. Tuesday, December 6 Larimer County Courthouse 200 W. Oak St., Ft. Collins, CO 80522 1<t Thursday, December 8 Johnstown Senior Center 101 Charlotte St., Johnstown. CO 80534 JOIN US ANY TIME! Both open houses start at 6:30 p.m. THORNTON WATER PROJECT OPEN HOUSES Visit with the Project team at any of the following locations to learn about the upcoming pipeline Project in Larimer and Weld Counties. Ask Questions • Get Information • Provide Input C a PROPOSED TWP CORRIDOR q—+ na 7 m Ml COATI wl aCOSI +Thornton For more information visit www.ThorntonWaterProject.com and sign up for Project updates or call 720.977.6700. REMINDER THERE ARE TWO MEETINGS REMAINING. If you've already attended one of our meetings, thank you for your time and Input. Tuesday, December 6 Larimer County Courthouse 200 W. Oak St.. Ft. Collins, CO 80522 *Thursday, December 8 Johnstown Senior Center 101 Charlotte St, Johnstown, CO 80534 JOIN US ANY TIME! Both open houses start at 6:30 p.m. THORNTON WATER PROJECT OPEN HOUSES Visit with the Project team at any of the following locations to learn about the upcoming pipeline Project in Larimer and Weld Counties. Ask Questions • Get Information • Provide Input ISO PROPOSED TWP CORRIDOR I _ Y m U Li 9 .0 CPI„ Wit. CPwb 1 Thornton For more information visit www.ThorntonWaterProject.com and sign up for Project updates or call 720.977-6700. REMINDER THERE ARE TWO MEETINGS REMAINING. If you've already attended one of our meetings, thank you for your time and input. * Tuesday, December 6 Larimer County Courthouse 200 W. Oak St., Ft. Collins, CO 80522 * Thursday, December 8 Johnstown Senior Center 101 calleavlohnstown, CO 80534 JOIN US ANY TIME! Both open houses start at 6:30 p.m. THORNTON WATER PROJECT OPEN HOUSES Visit with the Project team at any of the following locations to learn about the upcoming pipeline Project in Larimer and Weld Counties. Ask Questions • Get Information C w M Ic -40 PROPOSED TWP CORRIDOR n I --; toga R, COP„ mow <w.,, Thornton For more information visit www.ThorntonWaterProject.com and sign up for Project updates or call 720-977-6700. • Provide Input REMINDE THERE ARE TWO MEETINGS REMAINING. LIf you've already attended one of our meetings, thank you for your time and input. Irr Tuesday, December 8 Larimer County Courthouse 200 W. Oak St., Ft. Collins, CO 80522 Thursday, December 8 Johnstown Senior Center 101 Charlotte St., Johnstown. CO 80534 JOIN US ANY TIME! Both open houses start at 6:30 p.m. (41 Thornton WATER PROJECT OPEN HOUSES Attend any of our open houses to learn how the Thornton Water Project may affect your property, ask our team members questions about the Project, and provide input. We want to hear from you! THERE ARE TWO MEETINGS REMAINING. www.ThorntonWaterProject.com 720-977-6700 Thornton Water Project Infrastructure Maintenance Center 12450 Washington St. Thornton, CO 80241-2405 PRESORTED STD U.S. POSTAGE PAID CITY OF THORNTON Thornton Water Project A:+• .torn l' . • 1 oval and sl/'Jlrr int l{ al der F T alas ell Map Gsear, j• Source Water Pump Station General Location • net location at the Source Water Pump Station will be WWI mined during design development _ Thornton vol submit a Site Plan Review demist .pplc.ton to Lyme. County eta' design has progressed to the level necessary to submit the applicator r FORT COLLINS (r— k+Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 00241.2405 3/2712017 0 1,125 2250 Feet 1 inch = 2250 feet 1�1 TWP Corridor in Unincorporated I I arimer County TWP Corridor outside •= Unincorporated Larimer County / - County Boundary _ _ Weld 150ft Notification Buffer — Railroad River/Stream/Canal/Ditch •Source Water Pump Station �• General Location Water Tank General Location Lamer 500ft Notification Buffer Parcel Boundary Map 1 Open House Notification Area So -at. -$D C. Ieruner a'O Wok; Count.. CDor DNC0G NAW Thornton Water Project FTir Yap 5 I at a, at 4MOIR on rift^ d Steal in rum: hi CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80 241-24 05 3/27/2017 Water Tank General Location 1:8 Mile in Latimer County S 0 1 125 2.250 ' Feet 1 inch = 2.250 feet W,17afe8 r'iOW'.Tt %04'. ='RV o40_cc ...tASA °OCAR SVCAlibUiAx-_:y A.4 V. 1 4 'Mile 1 uiri a County Boundary and TWP Corridor Boundary in Larimer County are Coincident TVVP Corridor in Unincorporated 'Latimer County ,TVVP Corridor outside ••..Unincorporated Latimer County County Boundary Railroad RneriStream/Canal/Ditch 'Source Water Pump Station General Location Water Tank General Location t _ :Latimer 500ft Notification Buffer i-_-!Weld 150ft Notification Buffer Parcel Boundary Map 2 Open House Notification Area 't= nal !canon of the Source YWfor Rump Station vAI oe aetermned during des,pn development Thornton yell submit a Si* plan Renew permit appication to Lanner County after design has progressed to the level necessary to submit to appl apon Su.'as •r•:7 cnlw :nine, ace We co.sres CJc "AC0C • A a ;'.`.A T' 3%V A •.Xi 7n MX:'. ... v Thornton Water Project FORT COLLINS 1 WATIid ((mcrnton :.p. TIMNATI-1 CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 3127/2017 I notarised Pond S 0 1 125 2.250 alFeet 1 inch = 2.250 feet County Boundary and TWP Corridor Boundary in Larimer County are Coincident WINDSOR TWP Corridor in Unincorporated Larimer County ▪ ,TWP Corridor outside ▪ • • :Unincorporated Lanmer County —• County Boundary --- Railroad River/Stream/CanallOitch 'Source Water Pump Station / General Location / "Water Tank General Location rR 'Latimer 500ft Notification Buffer _ ! Weld 150ft Notification Buffer Parcel Boundary Map 3 Open House Notification Area •F ocetion of the Source Water Pump Station vel be determined durng desgn development Thornton vAt submit a 5•b Plan Review perms appllcatbn To tamer County after design has progressed to the level necessary to subrrva the appicabon 'w• N.iL) c:7WR _',tor no' Mk Cq'.-*et GW" I]g"..0G Melo W u)06e f O '.'n., vCA•»a*. oAC.tc •f ljA�GR co t PGHMc TT NCC-Stve. X /P vat -CLAN V, u v Thornton Water Project CITY OF THORNTON COLORADO (4tw.!1ton� 12450 WASHINGTON ST THORNTON. CO 80241-2405 327/2017 WNre/ee_ IHORrNT ON_N04'•F.4N_pROXCTT AS< ^4^✓.4 S 0 1125 2.250 ' Feet 1 inch = 2,250 feet County Boundary and TWP Corridor Boundary in Larimer County are Coincident TWP Corridor in Unincorporated 1Lanmer County TWP Corridor outside ....:Unincorporated Larimer County — County Boundary — Railroad River/Stream/Canal/Ditch •Source Water Pump Station • / General Location / /Water Tank General Location 1 _ JLanmer 500ft Notification Buffer _ 1Weld 150ft Notification Buffer Parcel Boundary Map 4 Open House Notification Area •veai'ocaton of the Source eater Pump Station WI pe oetnrrnneO our, rg design development Thornton rn1 submit a Silt Plan Renew permit application to Lawler County after ensign has powrnssod to the level necessary to submit ete applcaoon So. xr C'.0014 LS, me, td Wee cot".. GJOT Napo n(CRMI^ NCC. AR M,4 •.4 •'.�;:• r CAI ONMAp •%•. ra Mx A c^ auM Thornton Water Project 11! Ind to, 1 uriginoist fist Map rul d ei ((thr!'ton < 3/27/2017 Reserna CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 8024 1-24 05 S 0 1.125 2.250 ' Feet 1 inch = 2,250 feet WINDSOR ti p'Yht'e !ltsPiFtl1� Lt' 4 Mitt :se St!.. t1 At`...4e1- - r-� ir•at'ir al; a: t• a a?ni Value IS County Boundary and TWP Corridor Boundary in Larimer County are Coincident • TWP Corridor on Unincorporated Lanmer County ....,TWP Corridor outside • • •: Unincorporated Larimer County -- County Boundary Railroad River/Stre a MCanal/Ditch •Source Water Pump Station / General Location / ,Water Tank General Location .41--74•Pleir• 040 r 4 , r. 1 •+ a 3, r _ ' Lanmer 500tt Notification Butter _ !Weld 150ft Notification Buffer Parcel Boundary Map 5 Open House Notification Area 'Foul tocabon of the Source Alter Pump Station eel be determined during demo dovoiopnrnt Thonsn .Ma surd a SSD Than Ravww permit apphcatlon to Lanny County ate dasipn ass p.oyressod to the Irma necessary to submit Ina aPdfcaliOn 5o Ton M'4 CU WN Lefler, n'a wrs co. -Nos coot ORCOG rA'UR w Webb T,•ORNT ON '.OR'.*AN oatJFC A9(ORDER 56'. PFRMRT CC'S.MAx qr AR MFR • s.1W0'FcAT.ONMAP •1%1M MX JONAH Thornton Water Project ((Thornton 1 CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 S 0 1,125 2,250 'Feet 1 inch = 2,250 feet / /Water Tank General Location TWP Corridor in Unincorporated =Larimer County ,TWP Corridor outside ....:unincorporated Larimer County —• County Boundary -4- Railroad River/StrearnlCanal/Ditch 'Source Water Pump Station General Location t _ 'Latimer 500ft Notification Buffer !Weld 150ft Notification Buffer Parcel Boundary Map 6 Open House Notification Area 'Feat location of the Source Niter Pump Station w1 Pe deter mneo durmg design development Thornton vai saint a Sib Plan Revew perms application to La rimer County after design has ROgrossed to the level necessary to suone fie ape ca on 3/27/2017 WseAM1 N, ON NOR `•.i_9•. CJ At`'t•A9t 3g01 sts,PC 9M,r'NGY.9.MAK.F9.:Ai.YF9 v0a•NJ'tCA':ONMAP .t%•ri' v%_ r.,. •.1: So. -o<, N..O GnW9 ti.,'rq' on9 Wye Cvr'n Gam' RGOG MAP Thornton Water Project e--1TWP Corridor in Unincorporated ' 1Lorimer County Map Imap 1 ` , I t r. Mac in claw' 1 otiginont Dnut der le -. t etaydtc ::..::•e; a.. Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 0 1,125 2,250 'Feet 3/27/2017 1 inch = 2 250 feet _lsgpl it' Wiwi faith MP's FIR. ESTONE .,TWP Corridor outside :,...:Unincorporated Larimer County -- County Boundary Railroad — River/StrearnlCanal/Ditch 'Source Water Pump Station / General Location / ,Water Tank General Location ■■ aim -44 a. n$ 1 r MP NMI 1.4i-.4114.4 1t i:!►�� r Lanmer 50011 Notification Buffer !wed 150ft Notification Buffer Parcel Boundary w Map 7 Open House Notification Area 'Rr,ar 1aca9on of the Source Alter Pump Suwon M1 be determined during design development Thornton ,Ma suana a Sat Plan Peters perm application to ureter County after design has progressed to the level necessary to saws( the application Seurat NMD C WMR Linn, Ma WOO Caron COO' ,7RCOG 'Om WU750111- f.,ORNTON_ NORT.-CR.._PROLC,TSS( ORDER 5161 PERM PblCt,aM+1PR•-ESA. 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R4 C l Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241.2405 3/27/2017 s 0 1,125 2,250 aFeet 1 inch = 2,250 feet TWP Corridor in Unincorporated OLanmer County ,TWP Corridor outside ....:Unincorporated Latimer County -- County Boundary -.- Railroad River/Stream/Canal/Ditch , 'Source Water Pump Station / General Location / ,Water Tank General Location 'Latimer 500ft Notification Buffer _ 'Weld 150ft Notification Buffer Parcel Boundary Map 9 Open House Notification Area 'Fmk tocabon of the Source %Alter Pump Stadon vat be Stemmed dump design development Thornton wt went a SS Plan RnWaw perm( appacteen to Ulmer Conty aMr detapn has pogreued to the love) negetery CO submit the appeaeon SiWitt vND COWR LAMM,' r, Wee Cesas COO 7 DRCOO NA p *Wane THORNTON_NORTrERN pR6&C VASR_ORDER 5tPER 9MAp,Rf9UAR IER ' Delver irCATIONMAP I IXt7P MXO .Aunt+ Y7700,r Slat AU November/December 2016 TWP Open House Mailing List - r. i l: i i `� Elie+ 1 MORRIS, EARL GEOFFREY 8553 STATE HIGHWAY 66 PLATTEVILLE CO 80651 2 MOSER, RANDEL AND DRON, ALLISON PO BOX 1096 LONGMONT CO 80502 PHOENIX DEVELOPMENT COMPANY, 3 INC 1620 OLIVET RD SANTA ROSA CA 95401 2545 S ATLANTIC AVE UNIT DAYTONA 4 6990 RIDGELINE DRIVE LLC 1801 BEACH SHORES FL 32118 ABSHIRE MARK SHELDON/JACKIE 5 THAXTON 3829 TWILIGHT LN FORT COLLINS CO 80524 2614 S TIMBERLINE STE 109 6 ACTARUS LLC PMB 149 FORT COLLINS CO 80525 7 AGAN DALE W/CONSTANCE J 5973 WOODCLIFFE DR WINDSOR CO 80550 8 AGNEW DAVID W/JACQUELINE A 1401 BISON RIDGE CT WINDSOR CO 80550 9 AGUIAR BRIAN/TARA 8884 LONGS PEAK CIR WINDSOR CO 80550 10 ALBERT JEFFREY M/ERIN L 1170 TRAILS END CT WINDSOR CO 80550 11 ALLEN ANDREW/KRISTEN 1951 YONKEE DR WINDSOR CO 80550 12 ALLEN GARTH H/MARGARET P 9088 GOLDEN FIELDS LN LOVELAND CO 80538 13 ALLEN KARL C/YVONNE A 1940 LOOKOUT DR WINDSOR CO 80550 ALLEN KENNETH B LIVING TRUST / 14 ALLEN CHARLA H LIVING TRUST 3990 PORTRUSH LN TIMNATH CO 80547 15 ALLEN RICHARD C/SANDRA L 6932 E COUNTY ROAD 48 FORT COLLINS CO 80524 16 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80534 1265 YOST ENTERPRISES LLC 1002 MEDICINE MAN CT WINDSOR CO 80550 1266 YOUNG ROBERT R 10265 COUNTY ROAD 17 LONGMONT CO 80504 1267 YULE WARREN R 251 ALDER AVE JOHNSTOWN CO 80534 1268 ZADEL JENNIFER L 11298 COUNTY ROAD 17 LONGMONT CO 80504 1269 ZEILER FARMS 5901 SACAJAWEA WAY LOVELAND CO 80537 1270 ZIEBARTH PAMELA M 327 BASSWOOD AVE JOHNSTOWN CO 80534 31 of 31 Open House Attendee and Locations Map Thornton Water Project 4.1 P / 45d/ • -.Nor- er.. � . �,'• • Chttiorese 52s Source Water Pump 'Station Location ` BOULDER (mornton Open House #3 - December Mb Dunn CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 3/20/2017 Attendee and Open House Locations LUNG 1ON Open House #2 - November 16th I,Etn*VE 1;1. — S 1inch •4metes 0 1 2 4 ran Water Tank Location SEVERANCE O Y f' 0 WINDSOR 0 O Open House #1 - November 14th rT' — FIRESTONE I-jREDERICK 114 Mile rDACONO U, 70TH ST Open House 64 - December BM Booster Pump Station Location 7 THORNTON rr Railroad -- County Boundary Lake/Reservoir R ry e r/ Str ea m/C a na VDdch O Attendee within Corndor O Attendee outside Corndor Open House Location LOCHBUIE' taesewaao—' GROSE ST HUDSC 4dams County 4 ca♦ a9cse let dt7t4_c •PERO' N0C 'MATx F9O;#. CME. .c oo.%.•ou5F.AYG 4`t FN^.FF.0Ca• iii •vC Ya.C•.. i7 a• So on "r•o CUw7 ...r •t 4444 Cora (+1TAIrrnton R PROJECT OPEN HOUSE WELCOME Ask Questions Get Information Provide Input ; :n.r . ,fit tih t •. aIfi. 'f'^'rt L"11sF "'.`..:fig .r`i!..!h,Illi!...3tL'�.ytt`.':: 7tt0 •351 &Jitilatatiebi'.V`(ki}r' 4:_-'1ui:'w..._:.'-" ±...A 4 www.Tho rnto nWatt' rP?bject.co m e Thornton WATER PROJECT OPEN HOUSE WELCOME Visit the following stations to talk to Project team members and learn about the Thornton Water Project. • Welcome Station (Please sign in.) • General Information & Project FAQs • Land Acquisition Process • Construction Activities • Permits • Corridor Map (Please fill out and drop-off your comment card before leaving.) www.ThorntonWaterProject.com QI‘etra. iThornton WATER PROJECT OPEN HOUSE PROJECT OVERVIEW The Thornton Water Project is a pipeline in Larimer and Weld Counties that will bring water purchased in the 1980s to Thornton customers Thornton is in the land use permitting stage of the Project, and will soon begin contacting landowners along the proposed pipeline corridor to discuss the options of constructing on their property. The exact location of the pipeline has not been determined, and no specific properties have been identified for acquisition of easements or rights of way. www.lhorntonWaterProject.com Thornton Water Project Project Corridor 4Thornton Proposed Potential Pump Station Location LOOKOUt RD n V,-< tom/ s Q rti� Proposed Potential Tank Location -.9/y.. RESTONE BROOMFIELD � K. u 9r 1- r, i H AVE A _ •..: iZ ! c bv r li,r � n nit/ill e l d A! ₹CTHORNTON .2 ,E J �..-. '�(;,u r rJ a•j'� I s N r L. ""TMA NORTHGLENN r f0e...vEl, K I K �' COMMERCE a 2i1. H <v! 'a 1, CITY .e --WESTMINSTER �J ' • FREDERICK 1/4` ile j Jt DACONO 1 I Proposed Potential Pump Station Location n• ,—r" Thornton Water i'-, = r 2' �I t i rig . ' Treatment Plant r' r' cs w , <�.,C�� Wes Brown Water ARVADA Treatment Plant CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 (720) 977-6210 10/27/2016 S 1 inch = 4.25 miles 0 1 2 4 C�i'ru-nly Boundaries Crossed by the Proposed Corridor fj Prc}ed Corridor Corporate Boundary GMA Boundary Railroad Dacono Mead Dacono Johnstown • • ' - Thornton Farm Firestone Thornton Firestone Mead -- County Boundary Fort Collins T'r'nath Fort Calms Timnath MMI WSSC Fradenck Wei nflton Frederick Wdntlton M Lake/Reservor Johnstown Wndso Windsor RrverBira am/Cen MUDneh C.,`�' Thornton WATER PROJECT PURPOSE AND NEED OVERVIEW The Thornton Water Project will deliver water owned by the city of Thornton in northern Colorado to enhance Thornton's water supply reliability and drought resiliency, help address source water quality issues and meet municipal and industrial demands in the city through 2065. mac; Thornton 11� WATER PROJECT rilMayf Thornton incorporated • • • C • 1982 - 1985 - Thornton Participation in Metropolitan Water Development Project (Two Forks) 1985, 1986 - Thornton Acquires Water Supply and Storage Company (WSSC) shares December 1986 - WSSC and Thornton agree to the future use of share water December 1987 - Thornton files Water Court application to change the use of WSSC shares 0 • • Thornton has contributed over $12 • million to the Northern Colorado economy through voluntary payments, use of local vendors. etc. HISTORY • • • • Thornton Farm Cooperative Program implemented for continued agricultural operations and farm and home leasing • • ors. August 1991 - April 1992 - Water Court Trial (57 days) February 1994 - Water Court Decree and appeal to the Supreme Court October 1996 - Supreme Court Opinion March 1998 - Water Court Decree on Remand • 2005 - Wes Brown Treatment Plant converted to membrane filtration to treat South Platte River supplies 2005-2008 - Additional gravel pit storage developed The Thornton Water Project is included in the South Platte Basin Implementation Plan and Colorado's Water Plan. • • • • • ,, I. • .•1/4.-.1• Thornton enhances water conservation and maximizes use of existing water resources. August 2013 - Owners Advisor hired for Thornton Water Project (TWP) August 2013 - May 2014 - Evaluation of TWP delivery options June 2014 - Pipeline chosen for TWP delivery method February 2015 - Local government outreach begins May 2016 - Preferred TWP corridor identified May 2016 - Larimer County Pre -Application Meeting August 2016 - Weld County Pre -Application Meeting November December 2016 - TWP Project Open Houses attire Dates VIEW THE TIMELINE Colorado Dept. of Transportation St. Vrain Sanitation District Box Elder Sanitation District Larimer County Weld County Town of Timnath Town of Windsor Town of Johnstown Town of Firestone Town of Frederick City of Dacono Town of Wellington City of Fort Collins City of Loveland Town of Berthoud Town of Milliken U.S. Army Corps of Engineers Xcel Energy Central Weld County Water District North Weld County Water District Little Thompson Water District Ak Thornton 1� WATER PROJECT 2016 Permitting and Land Acquisition Design Construction Restoration and Stewardship TIMELINE 2017 2018 2019 2020 2021 2022 2023 2024 Project Operational www.ThorntonWaterProject.com ekk Thornton� WATER PROJECT PERM TTING i Below are a few of the over 600 permits, agreements and consultations/approvals, that the Thornton Water Project will need to obtain before construction begins. Title Use by Special Review Permit Areas and Activities of State Inter) (1041) Permit Site Plan Review I Areas and Activities of State Inte (1041) Permit Stormwater Discharge Associ with Construction Activity General Permit Construction Dewatering P Minimal Industrial Discharge Pe Air Pollution Emission Notice (AP and Construction Permit I Special Use Utility Permit Encroachment/Excavation/ Right -of -Way Permit Issuing Agency Crossing Agreements Crossing/Encroachment License Agreements Clean Water Act Section 40d' Consultations a Endangered Species (Sections 7, 9, and 10) Complian. Consultations Migratory Bird Treaty Act Compliance Consultations Wildlife Conservation/ Mitigation Plan 1 National Historic Preservation A Section 106 Consultations Weld County Larimer County Larimer County Town of Firestone Colorado Department of Public Health and Environment Colorado Department of Public Health and Environment Colorado Department of Public Health and Environment Information Ensures that pipeline and appurtenances are constructed and operated in a manner that is consistent with existing and planned land uses in Weld County. Requires coordination with, and approval by, the Weld County Board of County Commissioners. Ensures that pipeline and appurtenances are constructed and operated in a manner that is consistent with environmental and developmental goals of Larimer County. Requires coordination with, and approval by, the Larimer County Board of County Commissioners. Ensures that the source water pump station complies with requirements of the Larimer County Land Use Code. Ensures that pipeline and appurtenances are constructed and operated in a manner that is consistent with environmental and developmental goals in the Town of Firestone. Protects water quality. Regulates the discharge of stormwater runoff from construction sites, and requires contractors to develop and implement a Stormwater Management Plan. Requires final stabilization of the site after construction activities are complete. Protects water quality. Regulates the discharge of groundwater and stormwater from excavation and dewatering operations, and imposes effluent limitations and associated monitoring and reporting requirements. Protects water quality. Regulates discharge of water from hydrostatic testing of pipelines. storage tanks, and similar vessels, and imposes effluent limitations and associated monitoring and reporting requirements. Colorado Department of Public Protects air quality around construction sites. Regulates releases of "fugitive dust", and requires contractors to develop and implement a Fugitive Dust Control Plan. Health and Environment Colorado Department of Transportation Municipalities crossed by the pipeline Ditch companies, special districts, utility companies Railroads (ex. UPRR, BNSF, Great Western) U.S. Army Corps of Engineers (USACE) U.S. Fish and Wildlife Service (USFWS) USFWS/Colorado Parks and Wildlife (CPW) Larimer and Weld Counties Colorado Office of Archaeology and Historic Preservation Ensures proper construction of the pipeline under State roadways. Regulates and authorizes pipeline installation within interstate and State highway right -of way, and requires contractors to meet Colorado Department of Transportation construction and restoration requirements. Ensures proper construction of the pipeline under municipal roadways. Regulates and authorizes pipeline installation within municipal road right-of-way, such as crossings and encroachments, and requires contractors to meet the municipality's construction and restoration requirements. Ensures proper construction of the pipeline when crossing ditches, canals or utilities. Regulates and authorizes pipeline installation and requires contractors to meet the ditch or utility company's construction and restoration requirements. Agreements may include specifying construction timeframes to ensure continuous ditch operations. Ensures proper construction of the pipeline in railroad right-of-way. Regulates and authorizes pipeline installation on railroad property and requires contractors to meet railroad construction and restoration requirements. Protects the "waters of the U.S.", including wetlands. Regulates the discharge of dredged or fill material into such waters. Thornton will conduct field surveys to identify waters of the U.S. in the Project area, and will consult with USACE for a jurisdictional determination for any waters that are identified. Thornton intends that pipeline crossings of jurisdictional waters will be accomplished by tunneling or boring under such waters, and it is expected that no 404 permit will be required. Protects and recovers threatened and endangered (T&E) species and the habitats they depend on. Regulates activities that could impact T&E species or associated habitat. Thornton will conduct field surveys to identify T&E species or habitat in the Project area, and will consult with the USFWS if adverse effects on a T&E species or its habitat is anticipated. No adverse effects to T&E species or habitat is anticipated, pending survey results and USFWS consultation. Protects migratory birds. Regulates activities that could impact active nests of certain migratory bird species. Thornton will conduct field surveys to identify active nests of protected species in the Project area, and will consult with the USFWS and CPW if active nests are identified and impacts anticipated. Protects wildlife and wildlife habitat. Ensures that the pipeline will be constructed to not adversely impact wildlife or wildlife habitats, or that impacts are mitigated to the maximum extent practicable. Thornton will develop a wildlife conservation /mitigation plan as part of the Weld County Use by Special Review Permits and the Larimer County Areas and Activities of State Interest Permit. Preserves historical and archaeological sites. Ensures that the pipeline will be constructed to not adversely impact historical or archeological sites, or that impacts are minimized to the extent practicable. Thornton will conduct a field survey and evaluation of the Project area to determine the existence of known cultural resources, and will consult with the Colorado Office of Archaeology and Historic Preservation if necessary. Thornton Water Project Permit Segments for Larimer and Weld Counties r -I r i 1' Larimer County Z Permit App ication 1 er Cotip l: a k; Legend 1h. -...on Finn — Cant &Wet RvI..TYYT'f.Maktiou. i t inch s 1.15 miles CITY OF THORNTON (schc2......._,Fren COLORADO 1)450 WASWNU 1 N Sr THORNTON :d ACIFI-;loo s e WELLINGTON O c2 BERTHOUD —49 rf � )l1SSWLLE y I ~I MEAD MOO- FIELD Tank Location 3 �J� Contut 1. Weld County ... Permit Application 3 EATON SEVERANCE a.� ti EVANS PLATTEVI L L E FREDERICK DACJ NO 114 Mile y THORNTON GILCREST Ci 1 Pump Station Location BRIGHTON /% / 1, .-LA SALLE' y} Weld County Permit Application 2 -V LOCHBUIE �ll r Weld County —1 Permit Application 1 UDSON !F I idaln.s County vfY •e"Thornton lAern WATER PROJECT PROJECT AREA EVALUATION Jurisdiction (County, City, Town, Other) Zoning/Land Use Agricultural Operations Transportation and Utility Corridors Soils and Vegetation Wildlife Wetlands/Waters of the U.S. Floodplains Cultural or Historic Resources Conservation or Land Management Areas b..r r wall hw �. ••..-. are J elpEP au. r OIWIP ._ . tie m f�I • • One I .ndNCIOINCOli • tri .r..w4 S. www.ThorntonWaterProject.com (Thornton GENERAL PIPELINE WATER PROJECT tif Construction Staging Clearing & Grubbing • Pipe Segments 45' Typical CONSTRUCTION Topsoil Stockpile Excavated Material • Ca Excavate & Place Pipe Bedding Material Pipe Installation In Trench Final Grade Backfill & Compact Restoration Work Limits • C:A. Thornton A\e' WATER PROJECT SIMILAR CONSTRUCTION PROJECTS IN COLORADO CI&. Thornton 11� WATER PROJECT TYPICAL EASEMENT/ RIGHT OF WAY DIAGRAM Temporary Permanent Construction Easement Easement 50' 40' Existing County Road F -H Pipeline Depth 4-5' Typical Pipe Diameter ± 48" 1 Existing Future Right of Way Right of Way 30' ± 60' ((a. Thornton WATER PROJECT tree 720-977-6700 ThorntonWaterProject.com • comments@ ThorntonWaterProject.com What is the Thornton Water Project? The Thornton Water Project is a pipeline in Larimer and Weld Counties that will bring water purchased in the 1980s to Thornton customers. FREQUENTLY ASKED QUESTIONS What is the Thornton Water Project timeline? Thornton's water customers will need this additional water supply by 2025. Project planning and permitting is currently underway, easement acquisition will start in late 2016, design will start in mid -2018, and construction will start in late 2019. Will the pipeline be buried? Yes, the pipeline will be buried with some appurtenances and access points above ground. Will the pipeline cross my property? The specific location of the pipeline has not been determined, and no specific properties have been identified for acquisition of easements or rights of way. Has the pipeline size been determined? We anticipate that the pipeline diameter will be in the 48 -inch range. What permits will Thornton need? We estimate that over 600 permits or approvals will be needed. We have initiated the land use permit processes in Weld and Larimer Counties, and have contacted the cities, towns and districts along the proposed pipeline route to understand their permitting requirements and processes. We plan to meet or exceed all permit requirements for the Project. We have consulted with the Army Corps of Engineers regarding Project construction, and will continue to do so as the Project progresses. Why can't Thornton just increase conservation and efficiency efforts to provide additional water? We have one of the lowest per -person water usage rates in the state, and will continue to be a leader in water conservation, but conservation alone isn't sufficient to meet our ongoing and future water supply needs. Will the Thornton Water Project serve other communities? Legally, our water rights can only be used to supply our water customers. However, we are open to partnering with other communities in northern Colorado to share infrastructure. Why is Thornton starting now if the pipeline isn't needed until 2025? We want to continue to be a good community neighbor and collaborate with stakeholders early in the process. In addition, it takes many years to perform the necessary studies and designs, acquire the necessary approvals and easements, and construct a 70 -mile -long pipeline. (4.*: Thornton � WATER PROJECT What is the Thornton Water Project? The Thornton Water Project is a pipeline in Larimer and Weld Counties that will bring water purchased in the 1980s to Thornton customers. For more information about this project and to sign up to receive updates: www.ThorntonWaterProject.com 720-977-6700 Land Acquisition Process PROJECT APPROACH LANDOWNERS CAN EXPECT A RESPECTFUL PROCESS AND FAIR COMPENSATION. With input from local governments, we identified a corridor for locating the pipeline. Specific properties or easements have not been selected prior to the Open Houses. We will make every reasonable effort to reach mutually acceptable agreements for property interests required for the Project. We will work with landowners through an open, respectful and collaborative three- phase process to Study, Select and Acquire easements for the Project. Western States Land Services, Inc. 970-667-7602 (Metro Area) 303-938-1414 Our Land Acquisition Team Members Phil B. Mazur. Senior Right of Way Agent and General Manager John Doty, Senior Right of Way Agent and Project Manager Val Kindgren, Senior Right of Way Agent Jen Mazur. Senior Right of Way Agent Justin Mazur, Senior Right of Way Agent and GIS Manager Mitch Hauff, Senior Right of Way Agent Nancy Ragland, Senior Right of Way Agent wslsadmin@ws-Is.com ACQUISITION Once a property is selected for potential easement acquisition: • Team members will contact landowners to discuss the valuation and acquisition process. • Team members will work with the landowner to address: - Surface restoration requirements - Crop yield reduction compensation - Additional Landowner concerns • Landowners will be presented with an Offer Letter. • Team members will coordinate with landowners to finalize the easement acquisition documents. • A closing will be held where all necessary documentation is signed and payments are made. STUDY A Project team member will contact potentially affected landowners to discuss the land needs and locations on their property that may accommodate the Project. Team members will also inform landowners of activities during construction, respond to landowner concerns, and discuss approximate value of the necessary easements. Team members may coordinate a "Right - of -Entry" with landowners to further on -site evaluation of the property including: • Verification of property boundaries • Geotechnical and environmental conditions • Locations of existing underground utilities SELECTION We will review property -related information including landowner preferences and concerns in determining whether a property is suitable for construction of the Project. Then, we will select suitable properties that, together with other properties, can be linked to provide a reasonable Project alignment for potential easement acquisition. Appendix D Stakeholder Outreach Information Figure 2 - Thornton Water Project PA -1 Route accompanies each irrigation and ditch company letter Thornton Water Project ADAMS AVE LONGMONTI ERIE/PKWY Thornton CITY OF THORNTON COLORADO CR32 TFIRESTONE BO FIRESONE r c PINE CONE AVE. CR 20 l) :NORTHGLENN 12450 WASHINGTON ST THORNTON CO 80241-2405 1 inch = 2 miles 0 05 1 2 8/15/2018 Miles as�as -.— 168TH AVE imaTWP PA -1 Route --County Boundary — Railroad River/Stream/Canal/Ditch I Lake/Reservoir Ac 11Ui CR 225, CR 32 CR 30 U' CR 18.5 14TH ST 9TH'ST FORT LUPTON Figure 2 Thornton Water Project PA -1 Route W s'A? W? THORNTON NJRTHERN PROJE:T TASK JRDER 5 51 PERMITTING.GISMAPF4ES WELD USR JUTREACH.PA•I PATE MXD JJA\ A&15.731F 10 5C 41 AM s5..City of Thornton Infrastructme Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 wV4nw thorntonwaterproject corn August 22, 2018 Mr. Gary Howard Big Dry Creek Ditch and Reservoir Company 2528 Weld County Road 19 Fort Lupton, CO 80621 Infrastructure Department Thornton Water Project 720.977-6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Mr. Howard: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures, so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route. • A copy or example of a typical facility crossing/encroachment agreement. • If applicable, a copy of a crossing application or other process and estimated timing. • General design and construction requirements. • General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Himyak@citvofthornton.net or 720-977-6264. Respe Ily, oohn Himyak Thornton Water Project Engineer ra.4.40WATER PM,: Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 8/15/2018 ZY�1F? isrn it 1 inch = 1.000 feet 0 500 1.000 Feet Legend TWP PA -1 Alignment Ditch Parcel Boundary X U CR10 _n ,'CR6, U C a rc r 6 :n rt O 1 uT---alt- CR 30 n GR28A N'� NI CH 1l V If I b -CR 74 ' In CR 22 I CR20 •I "' 7 CRIB - R•6 1 r k ;c N _ n N Ix K U 9CRa CR6 Figure 1 Thornton Water Project Thompson Ditch Big Dry Creek Ditch and Reservoir Company Weld County •," RN -ON NORTNERII PR0Jt0T TASX URo_R 5S• PERMIT TING GISMAK-LES WELC• uSuC T(i!ES PAID' tc.i.:Pfl SiNC NY,o 'Ju•vI 6 15 70 !!5223 AM ��City of 1 Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton, CO 80241-2405 ,,hPWW thorntonwaterproject.com August 22, 2018 Ms. Eve Craven Farmers Reservoir and Irrigation Company 80 S. 27ti Ave. Brighton, CO 80601 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-62.02 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Ms. Craven: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route. • A copy or example of a typical facility crossing/encroachment agreement. • If applicable, a copy of a crossing application or other process and estimated timing. • General design and construction requirements. • General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Himyak�a7cityofthornton.net or 720-977-6264. RespectfyIly, John Himyak Thornton Water Project Engineer Thornton "ER PROJECT CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 8/17/2018 1 inch = 2,500 feet 0 1,250 2,500 Feet 413116/1 anal. Legend TWP PA -1 Alignment Ditch I, 3 • U CR ID ca O s CR 22 CR20 CR 18 - r; `: s U.N 1G N CR8 CR 6 853 CR.1 Figure 1 Thornton Water Project Bull Canal, Stanley Ditch, Stanley Lateral Ditch Farmers Reservoir and Irrigation Company (FRICO) Weld County W'A7E9EE_ THORN TON _NOR THE RN_ PROJECTITASNORDER 5151_PERMIT TINGIGISIMA PFI LE SAP* LD OSR1DITCHE SWKI'DITCH CROSSNGS MXD flAN&17401E 92870 AM At City of marThornton infrastructure Mainterance Center 12450 Washington Street Monitor:. CO 80241-2.405 www thorntcnwaterprotect corn August 22, 2018 Infrastructure Department Thornton Water Project 720-977-6700 Far 720-977-6202 Mr. Garrett Varra Last Chance Ditch and Reservoir Company 11955 Weld County Road 15 Longmont, CO 80504 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Mr. Varra: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thomton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route. • A copy or example of a typical facility crossing/encroachment agreement. • If applicable, a copy of a crossing application or other process and estimated timing. • General design and construction requirements. • General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respec ully, John Himyak Thornton Water Project Engineer 1209292_00031?.• IA, v.. -- 209 •20004: LA `. 4tml •t-Ytee'i IIF:I ' . JLa§t Chance 20920300034' _ wis • ear -a. �i�L.t4i4r'J 3092''32CC"= FIRE ST E TwVV or r, [IEPARTrAE�i TRANSP. 'P •. P€t°,ro TAT' ON CL1�L?1 U;�:L`ILIL 3 Uri ti 9V !t to &tidal ? 24 22 -20 MIXED T' Y caR'• IG ELLE- Mt mu (l� Thornton WATER PROJECT CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 8/15/2018 1 inch = 1,200 feet 0 600 1,200 Feet Legend TWP PA -1 Alignment Ditch Parcel Boundary Figure 1 Thornton Water Project Inlet Ditch and Last Chance Ditch Last Chance Ditch and Reservoir Company Weld County n-lz RN .O4 'I'7R`NFa? Orient " PERMITTING'GISJAAPPI. ES WELe_usa DITCNE5PAI'DITCN CR0SSING$MX0 -+0UAN & I520'E I t 52 23 AM At City of Thy Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241--2405 www thorntonwaterproject.com August 22, 2018 Mr. Howard Cantrell Lupton Bottom Ditch Company 11016 Weld County Road 23 Fort Lupton, CO 80621 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-6202 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Mr. Cantrell: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline. two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP. TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County. Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • • • • • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route. A copy or example of a typical facility crossing/encroachment agreement. If applicable, a copy of a crossing application or other process and estimated timing. General design and construction requirements. General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Himyak(cDcityofthornton.net or 720-977-6264. Respectfully, . ;t. n Himyak Thornton Water Project Engineer W 473968_ T$CRN'OPI NORTHERN PROJECT TASK JRDER ' '_PER6RT ^.'Sfl PC LEG MEL_USA aTCHESPAIDDITCH CROSS FIGS LIXO -OUANQ 152018 11 52 2J Mi City of marAy Thornton Infrastructure Maintenance Centel 12.450 Washington Street Thornton, CO 80241--2405 www thorntonwaterproject corn August 22, 2018 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-62.02 Mr. Alfred Sater New Coal Ridge Ditch Company 10879 County Road 17 Longmont, CO 80504 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Mr. Sater: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process. various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • • • • • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route A copy or example of a typical facility crossing/encroachment agreement. If applicable, a copy of a crossing application or other process and estimated timing. General design and construction requirements. General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Hirnyak@cityofthorntonmet or 720-977-6264 Respectfully. -ci hn Himyak Thornton Water Project Engineer lf-9t't 6'l sari Irt3`•Er Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 8/15/2018 1 inch = 1.000 feet 0 500 1,000 Feet Legend caTWP PA -1 Alignment Ditch Parcel Boundary CR•24 Figure 1 Thornton Water Project Coal Ridge Ditch New Coal Ridge Ditch Company Weld County ;V AM *8 THCRN'UN_ NORTHE RN_PRoJE;T. TASX C'R MR PrHTal t iN'l CIS/1nPE l ES P•E10 VSR1?ITCl/ESPAI'DITCH CROSSNGSUXO JOlW1 P-" ?U'! (' "'2' All woe -City of Ale Thornton Infrastructure Maintenance Center 12.450 Washington Street Thornton CO 80241-2405 www thomtenwaterproject corn August 22, 2018 Mr. John Howard Yoxall Ditch Company 8679 Weld County Road 4 Brighton, CO 80603 Infrastructure Department Thornton Water Project 720 977-6700 Fa‘ 720-977-6202 RE: Thornton Water Project Permit Application 1/Irrigation Ditch Facility Coordination Request Dear Mr. Howard: The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thomton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include approximately 60 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilitates in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 route are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The attached Figure 1 shows locations that we have identified where the TWP PA -1 crosses your facilities. The overall TWP PA -1 route map (Figure 2) is also included in the event that there are other facilities that you own that we may have missed. Please review the attached figures so that we can begin to coordinate facility crossings of the TWP PA -1 route. Thornton is requesting the following information: • Information on existing or planned irrigation facilities crossed by the TWP PA -1 route. • A copy or example of a typical facility crossing/encroachment agreement. • If applicable, a copy of a crossing application or other process and estimated timing. • General design and construction requirements. • General information about existing infrastructure within the TWP PA -1 route. Thank you and for questions, to coordinate a meeting, or transfer the requested information, please contact me at John.Himyak[c�cityofthornton.net or 720-977-6264. Respectfully, ;lo n Himyak Thornton Water Project Engineer •kalitCM9 Thornton CITY OF THORNTON COLORADO GJ93' ►` 1;1 astSAT€if'U 12450 WASHINGTON ST THORNTON. CO 80241-2405 8/17/2018 gYoxali'D'tch 1 inch = 1.000 feet 0 500 1000 Feet 14& PER' ! Legend TWP PA -1 Alignment Ditch Parcel Boundary CR2C$ a } cc CR 10 'CR6 V �•1r.:�J�15 1 r, f1s t± iJ riitAL*i i Z9 t ZICON ArtiaLlY If _ V :J.-•�ER'2& _ 4 DI CR-26- CR 241 R22 -- o CR 20--r `" CR 18 .) e CR-32 CR'30 R 16 CR 14.5. . Fat ern 0^r C to V 4CR8 CR 6r ", 1L-,J1i Figure 1 Thornton Water Project Yoxall Ditch Howard Family Weld County 1'8988_TNCRNTON NORTHERN_PROJECT.TASI(_ORDER 531_ PERMITTING'GIS'MAPGILESWELD USR,DITCHES!PAPOITCH CROSSINGS Wt JOUAN Srt71019 9 30 08 AM Figure 1 Thornton Water Project PA -1 Route accompanies each utility provider letter Thornton Water Project ADAMS AVE w - LONGMONTr ERIE/PKWY CR6 PINE CONE AVE -'1ST ST CR16 FREDERICK / CR 12 r - DACONO cn CR 8 • I � U 'Frei O s? BROOMFIELD NORTHGLENN Lc 1 -- 1' sea "En 7-Ne THORNTON CR6 CR 4 C, cc O •• i 168TH AVE c?? N w CR32 CR30 CR 18.5 4/ ti h CR25 `±: 1 I BASELINE RD ps Ze BRIGHTON BRID ST (C4 Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON CO 80241-2405 1 inch = 2 miles 0 0.5 1 2 8/15/2018 Miles 4TWP PA -1 Route -- County Boundary Railroad — River/Stream/Canal/Ditch Lake/Reservoir Figure 1 Thornton Water Project PA -1 Route 4 4789$4 THORNTON HORT4RN PROJECT TA -$X ORDER 5.5 DERMITT!NGOIS►lAPc LES AELr. USROu?REACH PA4+ ROu'E M$*C O.,AN 6tS7 '8 '0 5o 4! A). At marCity of Ale Thornton Infrastructure Maintenance Center 12.450 Washington Street Thornton, CO 80241-2405 www thorntcnwaterproject corn August 21, 2018 Mr. Israel Jaramillo Black Hills Energy 5814 Ideal Dr. Frederick. CO 80516 Infrastructure Department Thornton Water Project 720-977-6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Jaramillo: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility, so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectfully, 77, Jphn Fiimyak Thornton Water Project Engineer City of Nae. Ay Thornton Infrastructure Maintenance Center 12450 Washington Street fhon•ton. CO 80241-2405 www thorntonwaterproject corn August 21, 2018 Mr. Stan Linker Central Weld County Water District 2235 2nd Ave. Greeley, CO 80631 Infrastructure Department Thornton Water Project 720-977 -6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Linker: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himvak@citvofthornton.net or 720-977-6264. Resp,if y Himyak hornton Water Project Engineer City of Ay Thornton I r frastructure Maintenance Center 12450 Washington Street Thornton, CO 80241-2305 www thorntonwaterproject corn September 5, 2018 Mr. David Sprout Comcast 8000 E. Iliff Ave. Denver, CO 80231 Infrastructure Department Thornton Water Project 720-971 6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Sprout: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectfully, i / H i J! Himyak ornton Water Project Engineer City of Ede' ir Thornton Infrastructure Maintenance Center 12450 Wasnington Street Thomtor. CO 80241-24C5 www thnrntnnwaterproiecl corn August 28, 2018 Mr. Nick Hagenlock DCP Midstream 370 17th St., Ste 2500 Denver, CO 80202 Infrastructure Department Thornton Water Project 720-977-6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Hagenlock: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak(@citvofthornton.net or 720-977-6264. Respec J hornton Water Project Engineer imyak At City of Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 rvww tnorntonwaterproject corn August 21, 2018 Darwin Williams Left Hand Water District P.O. Box 210 Niwot, CO 80544-0210 Infrastructure Department Thornton Water Project 720.977-6700 Fax: 720-977-6202. RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Williams: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak @cityofthornton.net or 720-977-6264. Respectfully, Sohn Himyak Thornton Water Project Engineer City of Ale Thornton Infrastructure Maintenance Center 17450 Washington Street Thornton, CO 8024 1-2405 www thorntonwaterpiotect corn August 21, 2018 Mr. Jim Hibbard Little Thompson Water District 835 E. State Highway 56 Berthoud, CO 80513-9237 Infrastructure Department Thornton Water Pioject 720-9 77-6700 Fax: 720-971.6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Hibbard: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak@citvofthornton.net or 720-977-6264. Respctfr, John Himyak Thornton Water Project Engineer City of Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 w'.vw thorntonwaterproject.com August 21, 2018 Mr. Gary Allen Longs Peak Water District 9875 Vermillion Rd. Longmont, CO 80504 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720.977-62.02 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Allen: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Hirnyak(a�cityofthornton.net or 720-977-6264. Respectfu9y, John Himyak Thornton Water Project Engineer Ak City of us,e.Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 www tncrntonwaterproject corn August 28, 2018 Ms. Stephanie Cecil Northern Water 220 Water Ave. Berthoud, CO 80513 Infrastructure Department Thornton Water Project 720.971-6700 Fax: 720-977-6202. RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Ms. Cecil: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 - inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak(a�cityofthornton.net or 720-977-6264. .�Jvfin Himyak Thornton Water Project Engineer • City of Ale Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton, CO 80241-2405 www thorntonwaterproject core August 28, 2018 Mr. Rob Rooney Spindle Hill Energy Center 6335 CR 19 Fort Lupton, CO 80621 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Rooney: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak(a.cityofthornton.net or 720-977-6264. Respectfully -;e-f John Himyak Thornton Water Project Engineer City of sae.Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 www thorntonwaterproject con) August 21, 2018 Mr. Dan Zweck St. Vrain Sanitation District 11307 Business Park Circle Firestone, CO 80504 Infrastructure Department Thornton Water Project 720-977 -5700 Fax: 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Zweck: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Hirnyak@citvofthornton.net or 720-977-6264. RespeOu -22( j� �a# imyak Thornton Water Project Engineer y. nree: ��City of �rThornton Infrastructure Mainterance Center 12450 Washington Street Thornton. CO 80241-2405 www thcmtonwaterproject corn August 22, 2018 Mr. Casey Dillon Tri-State Generation and Transmission Association, Inc. 1100 W. 116th Ave. Westminster, CO 80234 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Dillon: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP PA -1, which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility, so that we can continue to coordinate facility crossings. From correspondence with you earlier this year, Thornton understands that the TWP PA -1 crosses Tri-State's Erie to Spires 230 kV electric transmission line near the intersection of County Road 6 and County Road 17 and that a ROW license is required for that crossing. If there are changes to Tri- State's requirements or facilities in the area of TWP PA -1, Thornton would appreciate additional information. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyakts cityofthornton.net or 720-977-6264. Respectfully,-" ,Job Himyak 'Thornton Water Project Engineer City of .ar Ay Thornton Irfrasti ;►crure Maintenance Center 12450 VVasnington Street Thornton. CO 80241-2405 www tnorntonwaterproje.ct corn August 21, 2018 Mr. Jared Odom United Power 500 Cooperative Way Brighton, CO 80603 Infrastructure Department Thornton Water Project /20-977-6700 Fax. 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Odom: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thomton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respec John Himyak Thornton Water Project Engineer At City of marAy Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2.40.5 www thorntonwaterproject.corn August 21, 2018 Western Area Power Administration P.O. Box 3700 Loveland, CO 80539-3700 Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-6202 RE: Thornton Water Project Permit Application 1/Utility Coordination Request To Whom It May Concern: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility, so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himvak(&acitvofthornton.net or 720-977-6264. Respectfully, John Himyak e — Thornton Water Project Engineer City of Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-240.5 www thorntonwaterproject corn August 21, 2018 Mr. Mike Diehl Xcel Energy 1800 Larimer St., Ste 400 Denver, CO 80202 Infrastructure Department Thornton Water Project 720-977-6700 Fax• 720-977-6202. RE: Thornton Water Project Permit Application 1/Utility Coordination Request Dear Mr. Diehl: The city of Thornton (Thornton) is contacting stakeholders regarding the development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 70 miles of water transmission pipeline, two pump stations, a water tank, and other necessary facilities in Weld, Larimer, and Adams Counties. The water pipeline is currently proposed to be a 48 -inch diameter pipe. Thornton is currently developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of buried 48 -inch water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. Typically, a 50 -foot wide permanent easement and 40 -foot wide temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road right-of-way. Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with facility operators to build our awareness of existing, planned improvements or future facilities, and to ensure that agency questions are addressed. The water pipeline alignment for TWP PA -1 crosses multiple utility facilities. Please review the attached figure with respect to your utility so that we can begin to coordinate facility crossings. Thornton is requesting the following information: • Information on existing and planned facilities in close proximity to the TWP PA -1. • Copies or examples of typical facility crossing/encroachment agreements. • General information, construction requirements, and estimated process time. In addition, Thornton is open to exploring possibilities of shared easements, either with existing or future planned utility improvements. Thank you and for questions, to coordinate a meeting or transfer the requested information, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectfu)ly, Himyak 4 >thornton Water Project Engineer ERC) ERO Resources Corp. August 12, 2018 Ms. Kristin Cannon, Area 2 Wildlife Manager Colorado Parks and Wildlife 1313 Sherman Street Denver, Colorado 80203 Re: Concurrence for a List of Special Status Species and Request for Comments Thornton Water Project — Weld County Permit Application 1 Dear Ms. Cannon: The City of Thornton (Thornton) is proposing to construct the Thornton Water Project (TWP), a domestic water transmission project in Larimer, Weld, and Adams Counties, Colorado (project area). Thornton is planning to submit a Weld County Use by Special Review permit application to Weld County for the first segment of the TWP in Weld County (Weld County Permit Application 1) in fall 2018. As part of the planning process, ERO Resources Corporation (ERO), on behalf of Thornton, is requesting concurrence from Colorado Parks and Wildlife (CPW) on the Tier 1 Species of Greatest Conservation Need (SGCN) species that may occur within Weld County Permit Application 1 or could be affected by the proposed TWP within Weld County Permit Application 1. ERO also requests that CPW provide any initial comments or concerns regarding the TWP at this early stage in the planning process. Thornton is currently developing land use permit applications for the TWP, and no final design has been completed to date. Through the land use permit process, CPW is likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on these permit applications. Below is a description of the TWP and the list of species ERO has identified that could occur in the project area or could be impacted by the TWP. The lists will be used to aid in the development of the final alignment and to reduce or eliminate natural resource concerns. Denver 1842 Clarkson Street Denver, CO 80218 303,830 1188 Durango 1015 X Main Avenue Durango, CO 81301 970.422.2136 Hotchkiss P.O. Box 932 161 South 2nd Street Hotchkiss, CO 81419 970.872 3020 Idaho 4001 East Main Street Emmett ID 83617 208 365 7684 www.eroresources.com Project Location The TWP corridor is in Larimer, Weld, and Adams Counties, Colorado (Figure 1). The TWP route begins north of Fort Collins in unincorporated Larimer County, travels east and crosses Interstate 25 to the Larimer/Weld County line, and then travels southeast to Thornton in Adams County. The Weld County Permit Application 1 segment is mainly located along County Road 17 between 168th Avenue and Highway 66 in Weld County, Colorado (Figure 1). The majority of the TWP corridor is located along municipal and county roads, with upland vegetation characterizing both sides of the project corridor. Other sections of the corridor cross undeveloped grasslands, agricultural fields, and housing subdivisions and travel between ponds, reservoirs, and wetlands. Consultants in Natural Resources and the Environment Ms. Kristin Cannon Colorado Parks and Wildlife Page 2 August 12, 2018 Project Description As described above, Thornton is proposing to construct a domestic water transmission project through Larimer, Weld, and Adams Counties, Colorado. The entire proposed route is shown on Figure 1. Weld County Permit Application 1 segment is located along County Road 17 between 168th Avenue and Highway 66 in Weld County, Colorado. The TWP corridor is 1/4 mile wide to accommodate the outcomes of easement negotiations with individual landowners and potential engineering constraints. The final alignment would include a 50 - foot permanent easement and a 40 -foot temporary construction easement within the project corridor. Thornton is proposing to use trench less construction methods to cross jurisdictional waters of the U.S. and suitable habitat for federally threatened and endangered species. Natural Resources Assessment ERO completed a natural resources assessment of the TWP corridor to support the major land use permits Thornton is seeking from Weld and Larimer Counties and to aid in the future development of the final alignment for the pipeline by detailing the natural resources found within the TWP corridor. ERO assessed an approximate 1/4 -mile corridor, as well as an additional 500 -foot study buffer on either side of the corridor and a 1,200 -foot additional buffer around the proposed pump station and tank sites. ERO assessed the TWP corridor for potential wetlands and other waters of the U.S., broad vegetation communities, federal and state threatened and endangered species, and migratory birds. ERO conducted surveys along the TWP corridor and study buffer on May 10, 11, 12, and 16 and July 14, 2016 (2016 site visits) adjacent to public roads or on Thornton -owned property and assessed natural resources via aerial imagery for areas that were inaccessible. Site Conditions During the 2016 site visits, ERO mapped vegetation communities within the TWP corridor. ERO identified the dominant species and grouped similar communities into vegetation cover types based on factors such as dominance by native or introduced species, moisture regime, and dominant growth type (trees, shrubs, or grasses). Based on the 2016 site visits and Google Earth imagery, ERO has identified six broad vegetation communities within the TWP corridor, as described below. Mixed Upland The mixed upland community occurs primarily in historically undisturbed uplands in the TWP corridor. Kentucky bluegrass (Poo pratensis) and western wheatgrass (Pascopyrum smithii) dominate this community. Other common species include needle-and-threadgrass (Hesperostipo comata), fringed sage (Artemisia frigida), switchgrass (Panicum virgatum), and foxtail barley (Hordeum jubatum). Some three -leaf sumac (Rhus trilobata), soapweed yucca (Yucca glauca), rubber rabbitbrush (Ericameria nauseosa), and other shrubs are scattered throughout this community. Noxious weeds such as cheatgrass (Bromus tectorum) and field bindweed (Convolvulus arvensis) also occur within this vegetation community type. Mixed uplands in the TWP corridor are of moderate quality because they have been grazed in the past and contain some weeds. ERO Resources Corporation Ms. Kristin Cannon Colorado Parks and Wildlife Page 3 August 12, 2018 Nonnative Upland The nonnative upland community occurs throughout the TWP corridor and includes areas that have been historically disturbed by heavy grazing, tilling, and hay production. In many cases, introduced species and pasture grasses dominate the community. The nonnative upland community is dominated by species such as smooth brome (Bromus inermis), Japanese brome (Bromus japonicus), crested wheatgrass (Agropyron cristatum), and kochia (Bassia scoparia), which predominantly occur along roadsides and other disturbed areas throughout the TWP corridor. Noxious weed species such as diffuse knapweed (Centaurea diffusa) and cheatgrass also occur within this vegetation community type. Riparian The riparian community includes moist areas along the larger tributaries and rivers in the TWP corridor. Some areas mapped remotely as riparian may include potential wetlands as well (see Wetlands discussion below). Depending on the site, plains cottonwood (Populus deltoides), crack willow (Salix fragilis), and peachleaf willow (Salix amygdaloides) form the overstory with a shrub layer of chokecherry (Prunus virginiana), American plum (Prunus americana), western snowberry (Symphoricarpos occidentalis), Woods' rose (Rosa woodsii), and sandbar willow (Salix exigua). The noxious weed tree Russian olive (Elaeagnus angustifolia) is common in this cover type. Smooth brome and Kentucky bluegrass dominate the understory. Wetlands Wetlands occur as fringes or wide benches along drainages, roadside swales, ponds, and lakes and as isolated depressions throughout the TWP corridor. Riparian vegetation abuts many of the potential wetlands along the perennial streams. Vegetation within the wetlands is dominated by plains cottonwood (Populus deltoides), sandbar willow, narrowleaf cattail (Typha angustifolia), broadleaf cattail (Typha /atifolia), Baltic rush (Juncus arcticus), Nebraska sedge (Carex nebrascensis), and reed canarygrass (Phalaris arundianacea). Agricultural Lands Tilled and managed agricultural lands are common throughout the TWP corridor. Agricultural lands are characterized by crops such as alfalfa, corn, small grains, and soy, as well as fallow ground and disturbed areas associated with agriculture. Developed/Disturbed Areas Developed/disturbed areas occur throughout the TWP corridor. Developed/disturbed areas have received heavy human use, including livestock concentration areas, buildings and surrounding disturbed areas, and roads, trails, and other developed areas. Developed/disturbed areas in the TWP corridor often contain bare ground or, if vegetation is present, are dominated by annual and noxious weed species such as kochia, cheatgrass, curly dock (Rumex crispus), biennial thistles, and diffuse knapweed. Tier 1 Species ERO assessed the TWP corridor for potential habitat for Tier 1 SGCN species. Tier 1 species are those species that are the highest conservation priority in the state. The TWP corridor contains suitable or potentially suitable habitat for several Tier 1 species (Table 1). A letter ERO Resources Corporation Ms. Kristin Cannon Colorado Parks and Wildlife Page 4 August 12, 2018 has been submitted to the U.S. Fish and Wildlife Service requesting concurrence of potential federally listed species that may occur within the TWP corridor. Table 1. Tier 1 species potentially found in the study area or with potential to be affected by the TWP in the study area. Common Name Scientific Name State Status * Habitat Suitable Habitat Present Amphibians and Reptiles Northern leopard frog Rano pipiens SC Wetlands, streams, beaver ponds, stock ponds, wet meadows, and floodplains; typically clear streams with sandy soils Yes — wetlands and streams in the TWP corridor Mammals Canada lynx Lynx canadensis FT, SE Dense subalpine forest and willow- choked corridors along mountain streams and avalanche chutes No Fringed myotis Myotis thysanodes Tier 1 Coniferous forest and mixed pine woodland No North American wolverine Gulo gulo luscus FPT, SE Deep, persistent, and reliable spring snow cover; primarily boreal forests, tundra, and western mountains No Preble's meadow jumping mouse Zapus hudsonius preblei FT, ST Shrub riparian/wet meadows Yes — wetlands and streams within the TWP corridor Townsend's big- eared bat Corynorhinus townsendii pallescens SC Mines, caves, large rock cavities No Birds Burrowing owl Athene cunicularia ST Shortgrass prairie with prairie dog colonies Yes — prairie dog burrows located in the TWP corridor Golden eagle Aquila chrysaetos Tundra, pine forests, sagebrush, grasslands, and agricultural land Yes — grasslands and agricultural fields along corridor Greater sandhill crane Grus canadensis tabida SC Wetlands and shallow marshes, mudflats, moist meadows, and agricultural land Yes — wetlands and agricultural land along corridor Mountain plover Charodrius montanus SC Open, flat tablelands and shortgrass prairie vegetation less than 6 inches high; breeds in areas with about 30 percent bare ground, including grazed grasslands, fallow fields, and prairie dog towns Unlikely — very little suitable habitat for mountain plovers occurs in the study area; plovers are vulnerable to human and vehicle disturbance Fish Brassy minnow Hybognathus hankinsoni ST Grassland streams and small ponds; cooler flowing waters or pools with sand and gravel substrate with aquatic vegetation Potentially — known to occur in St. Vrain Creek, the Poudre River, and the South Platte River ERO Resources Corporation Ms. Kristin Cannon Colorado Parks and Wildlife Page 5 August 12, 2018 Common Name Scientific Name State Status * Habitat Suitable Habitat Present Common shiner Luxilus cornutus ST Cool, clear streams with moderate gradient, gravelly bottoms, and shady areas Potentially — known to occur in cool transitional zone streams in the South Platte River Basin Greenback cutthroat trout Oncorhynchus clarki stomias FT, ST Cold, clear, gravely headwater streams and mountain lakes in the South Platte and Arkansas River Basins No Plains topminnow Fundulus sciadicus Shallow, clear water with backwaters and pools Potentially — St. Vrain Creek Stonecat Noturus flavus SC Fast water riffles and runs of streams with sand -gravel bottoms, often under rocks and debris Potentially — St. Vrain Creek Suckermouth minnow Phenocobius mirabilis SE Gravel and rubble riffles and runs of clear to turbid creeks and small to medium rivers Potentially — known to occur in St. Vrain Creek *SE = State Endangered Species; ST = State Threatened Species; SC = State Species of Concern; FE = Federally Endangered Species; FT = Federally Threatened Species; FPT = Federally Proposed Threatened Species. Source: Colorado Division of Wildlife (CDOW) 2006; Colorado Natural Diversity Information Source (CNDIS) 2016; CPW 2016a, 2016b; Woodling 1985. Other Wildlife As part of the natural resources assessment, ERO identified other wildlife that may occur within the TWP corridor or may be impacted by the TWP, including Tier 2 species. Species that have the potential to occur in the TWP corridor are listed in Table 2. Table 2. Potential wildlife occurring in the TWP corridor. Common Name Scientific Name Bald eagle Haliaeetus leucocephalus Black bear Ursus omericanus Black -tailed prairie dog Cynomys ludovicionus Bull snake Pituophis catenifer Common garter snake Thamnophis sirtalis Cottontail rabbit Sylvilagus spp. Coyote Canis latrans Deer mouse Peromyscus maniculatus Ferruginous hawk Buteo regalis Great Plains toad Anoxyrus cognatus Ground squirrel Ictidomys tridecemlineatus; Xerospermophilus spilosomo Interior least tern Sterna antillarum athalassos Iowa darter Etheostoma exile Long -billed curlew Numenius americanus Mountain lion Fells concolor Mule deer Odocoileus hemionus Peregrine falcon Falco peregrunus gnatum Plains pocket gopher Geomys bursarius Plains spadefoot Spec bombifrons Prairie vole Microtus pennsylvanicus Pronghorn Antilocapra americana Raccoon Procyon lotor Red fox Vulpes vulpes ERO Resources Corporation Ms. Kristin Cannon Colorado Parks and Wildlife Page 6 August 12, 2018 River otter Lontro conodensis Swift fox Vulpes velox Western terrestrial garter snake Thamnophis elegans White-tailed deer Odocoileus virginianus Wild turkey Meleagris gollopavo Woodhouse's toad Anaxyrus woodhousii Conclusion On behalf of Thornton, ERO requests concurrence from CPW on the lists provided above for special status species, migratory birds, and other wildlife that may occur within the TWP corridor along County Road 17 between 168th Avenue and Highway 66 or that could be impacted by the project. ERO also requests that CPW provide any comments or concerns regarding additional species or requirements that may be pertinent to the TWP and specifically Weld County Permit Application 1. Thornton and ERO would also be glad to meet with CPW to discuss the TWP and any comments or concerns regarding the project. Thornton plans to develop measures to avoid and minimize impacts on raptors and other migratory birds during project construction and will be coordinating with the CPW Area 2 wildlife manager before and during construction on the most effective means to minimize effects on raptors and other migratory birds. If you have any questions or would like additional information, please call me at (303) 830- 1188. We look forward to hearing from you. Sincerely, Moneka Worah Natural Resource Specialist Attachment cc: John Himyak — City of Thornton Jody Henry — CH2M, Inc. References Colorado Division of Wildlife (CDOW). 2006. Pocket Guide to Native Fish of Colorado's Eastern Plains. May. Colorado Natural Diversity Information Source (CNDIS). 2016. GIS Habitat Coverage. http://cpw.state.co.us/learn/Pages/Maps.aspx/. Last accessed August 5, 2016. Last updated February 22, 2016. Colorado Parks and Wildlife (CPW). 2016a. Colorado listing of endangered, threatened and wildlife species of special concern. http://cpw.state.co.us/learn/Pages/SOC- ThreatenedEndangeredList.aspx. ERO Resources Corporation Ms. Kristin Cannon Colorado Parks and Wildlife Page 7 August 12, 2018 Colorado Parks and Wildlife (CPW). 2016b. Species Profiles. http://cpw.state.co.us/learn/Pages/SpeciesProfiles.aspx. Woodling, J. 1985. Colorado's Little Fish: A Guide to the Minnows and Other Lesser Known Fishes in the State of Colorado. June 1985. Colorado Division of Wildlife, Denver, CO. http://www.nativefishlab.net/library/textpdf/20824.pdf. ERO Resources Corporation COLORADO CACHE LA -POUJDRE ) 144 m EA _t. es.Park ;483 1r ;287 It) ti PORT COLLINS , DOWNTOT A RPMFort Collins* Horse toot l Reservoir FORT COLLINS i °VELA NO MUNI PURPORT YANCE BRAND AIRPORT+ Lovfland Proposed Tank Site Windsor Johnstown • Milliken .Longmont ] 66 Alternative Pump Station Location r 'Fr Dacono Erie • ERIE II MW#CIP' �tRPOR' 11 °Lafayette -it \,,,Broor„teld 361 ci\ If - 1• r_= it 'I l I' I' • _ 0 \ill Greeley. .Platteville s REELEY WELOCO 4IMMRPORT Alternative Pump Station Location Alternative Pump Station Location tone erick righto S. 2 11 fort Lupton A 120th Avenue dr .me Hudson Thornton Water Treatment Plant nrviERINrL .AIRPORT Wes Brown Water Treatment Plant Thornton Water Project Adams, Lorimer, and Weld Counties, Colorado TWP r----; Conceptual TWP Corridor and Study `---- Buffer - Additional Study Required rn Study Weld County Permit Application Weld County Permit Application Weld County Permit Application Lorimer County Permit Application Figure 1 Vicinity Map Prepared for: City of Thornton File: 5241 Figure 1 Agency letter.nS [dlH] March 15, 2017 ERC) CR0 R•.�;:tiiccs Corp oon ons of th,s aocument , nc...de.n?ellect,ol oroperty of FSRI and ty licensors and ore urea "we ..^on• u•^3.! Copyr y't C 2016 ESz a^o 's co^sore. All nrs rnsny,co COLORADO Parks and Wildlife Department of Natural Resources Area 2 - Lon Hagler State Wildlife Area 4207 W CR 16€ Loveland, CO 80537 P 970.472.4460 F 970.472.4468 October 22. 2018 Ms. Moneka Worah ERO Resources Corp. 1842 Clarkson Street Denver, CO 80218 Re: Concurrence for a List of Special Status Species and Request for Comments - Thornton Water Project - Weld County Permit Application 1 Dear Ms. Worah, We received your letter dated August 12th, 2018 for a request for concurrence on species of wildlife that may occur within the project path for the first segment of the Thornton Water Project. This segment of the project is between Highway 66 south to 168th Avenue along Weld County Road 17. We appreciate the opportunity to comment on this section of the project and look forward to additional opportunities to evaluate wildlife impacts of other sections of the pipeline. The mission of Colorado Parks and Wildlife (CPW) is to perpetuate the wildlife resources of the state, to provide a quality state parks system, and to provide enjoyable and sustainable outdoor recreation opportunities that educate and inspire current and future generations to serve as active stewards of Colorado's natural resources. CPW has a statutory responsibility to manage all wildlife species in Colorado, and to promote a variety of recreational opportunities throughout Colorado. We have reviewed the species and habitats outlined in your letter and agree with your assessment that those species may potentially occur within the boundaries of the pipeline project in this section. CPW appreciates that Thornton is proposing to use trenchless construction methods to cross the St.Vrain River, associated sloughs and habitats that protect wildlife species that are associated wetland and riparian habitats. We also recommend that trenchless construction methods be employed for Big Dry Creek, Little Dry Creek, and any other ponds and wetlands encountered along pipeline pathway. As identified in your assessment, there is a potential for raptor nests and burrowing owls to be encountered along this section of the project pathway depending upon what time of year the construction occurs. If construction is to take place between February 1 and July 31st we recommend that raptor surveys be performed prior to construction and throughout the project to detect any new nests that may occur. CPW has developed a set of guidelines for setbacks for a variety of species of raptors and techniques for surveying burrowing owls. Those guidelines can be found on the CPW website at: Bob D. Brosdieid. Director . Colorado Parks and Wildlife • Parks and Wildlife Commtsgon: Robert W. Bray • Matthew Eiurkett • Charles Garcia • Mare Haskeu Came Besnet?e Hauser • John Howard, Chair • Marvin McDaniel. • Colleen Peppier • Jennifer Rieke Taylor • James Vigil, Secretary • Michelle Zimmerman, Vice -Chair i http: / /cpw.state.co.us/Documents/WildlifeSpecies/LivingWithWildlife/RaptorBufferGuideline s2008. pdf#search=Raptor%20Nesting%20guidelines http: //cpw.state.co.us/Documents/WildlifeSpecies/Profiles/BUOW SurveyProtocol2007.pdf. Colorado Parks and Wildlife recommends that the developer work with the Weld County Public Works Department -Weed Division to develop and implement a plan for control of noxious weeds during and post construction phases of the pipeline project. To avoid the spread of noxious weeds to other sites and to prevent new species from being introduced, all construction equipment should be thoroughly cleaned prior to arriving on site and after construction is completed. CPW recommends that any restoration of any sites be of a mixture of native grasses and forbs. Any native trees that are removed should be replaced on a 3 to 1 basis, especially in the riparian areas of the St. Vrain River. As this segment is a part of a larger proposed pipeline that crosses multiple jurisdictions, land ownership, and wildlife habitats there will be additional comments and concerns associated with other segments of the project. CPW requests the opportunity to evaluate and comment on these segments once the route is finalized. If you have any questions or concerns regarding this letter, please feel free to contact District Wildlife Manager Chris Mettenbrink at (303) 906-1979. Again, thank you for the opportunity to comment on this project. Sincerely, 001229 Kristin Cannon Area Wildlife Manager Cc. M. Leslie, T. Kroening, C. Mettenbrink, T. Petersburg, B. Marette ERC) March 15, 2017 Mr. Drue DeBerry U.S. Fish and Wildlife Service Colorado Field Office Denver Federal Center (MS 65412) PO Box 25486 Denver, Colorado 80225 Re: Thornton Water Project — Larimer, Weld, and Adams Counties, Colorado Dear Mr. DeBerry: The City of Thornton (Thornton) is proposing to construct the Thornton Water Project (TWP), a domestic water transmission project in Larimer, Weld, and Adams Counties, Colorado. As part of the planning process, ERO Resources Corporation (ERO), on behalf of Thornton, is requesting concurrence from the U.S. Fish and Wildlife Service (Service) on the lists of special status species that may occur within the TWP area or could be affected by the TWP. ERO also requests that the Service provide any initial comments or concerns regarding the TWP at this early stage in the planning process. Below is a description of the TWP and the lists of species ERO has identified. Denver 1842 Clarkson St. Denver, CO 80218 303.8 30.1188 Durango 1015 '%: Main Avenue Durango, CO 81301 970.422 2136 Hotchkiss P O Box 932 161 South 2"' St. Hotchkiss, CO 81419 970.872.3020 Idaho 4001 East Main Street Emmett, ID 83617 208.365 7684 www.eroresources.com Thornton is proposing to construct the TWP using trenchless construction methods to cross jurisdictional waters of the U.S. and suitable habitat for federally threatened and endangered species. Based on this approach, it is anticipated that the TWP would not require any federal approvals such as a Clean Water Act 404 permit or consultation under the Endangered Species Act. The TWP does not involve any federal funding and it will not cross federally owned lands. Thornton has been coordinating with the U.S. Army Corps of Engineers (Corps) regarding the TWP and plans to submit an approved jurisdictional determination request to the Corps to determine which areas in the TWP corridor are jurisdictional waters of the U.S. Thornton also plans to submit a habitat assessment to the Service when the final alignment has been determined to confirm the boundaries of potential habitat identified within the alignment and to confirm the TWP would have no effect on Preble's meadow jumping mouse (Preble's) or its habitat. Because no federal action is anticipated, formal consultation regarding federally listed species affected by depletions to the South Platte River would not be required. It should be noted, however, that Thornton is a member of the South Platte Water Related Activities Program (SPWRAP). ( .a;snitanis in natural Resources and the EnVnaiununt Mr. Drue DeBerry U.S. Fish and Wildlife Service Page 2 March 15, 2017 Thornton is currently developing land use permit applications for the TWP, and no final design has been completed to date. Through the land use permit process, the Service is likely to be contacted as a "Referral Agency" of Weld County and/or Larimer County to provide review and comment on these permit applications. Thornton will be submitting a 1041 permit application to Larimer County in spring 2017 and the first of three Use by Special Review permit applications to Weld County in summer 2017. Project Location The TWP corridor is in Larimer, Weld, and Adams Counties, Colorado (Figure 1). The TWP route begins north of Fort Collins in unincorporated Larimer County, travels east and crosses Interstate 25 to the Larimer/Weld County line, and then travels southeast to Thornton in Adams County. A majority of the TWP corridor is located along undeveloped grasslands, agricultural fields, and housing subdivisions and travels between ponds, reservoirs, and wetlands. Other sections of the corridor are located along municipal and county roads, with upland vegetation characterizing both sides of the TWP corridor. Project Description As described above, Thornton is proposing to construct a domestic water transmission project through Larimer, Weld, and Adams Counties, Colorado. The proposed route is shown on Figure 1. The TWP corridor is 1/4 mile wide to accommodate the outcomes of easement negotiations with individual landowners and potential engineering constraints. The final alignment will include a 50 foot permanent easement and a 40 foot temporary construction easement within the project corridor. The TWP will include a water pipeline to the Thornton Water Treatment Plant and to the Wes Brown Water Treatment Plant. TWP corridors from 120th Avenue south to each of the treatment plants are not confirmed and require further investigation to establish final corridor alignments. That section is indicated as a dashed line on Figure 1. ERO completed a natural resources assessment of the TWP corridor to support the major land use permits Thornton is seeking from Weld and Larimer Counties and to aid in the future development of the final alignment for the pipeline by detailing the natural and cultural resources found within the TWP corridor. ERO assessed an approximate %-mile corridor, as well as an additional 500 -foot study buffer on either side of the corridor and a 1,200 -foot additional buffer around the proposed pump station and tank sites. ERO assessed the TWP corridor for potential wetlands and other waters of the U.S., broad vegetation communities, federal and state threatened and endangered species, and migratory birds. ERO conducted surveys along the TWP corridor and study buffer on May 10, 11, 12, and 16 and July 14, 2016 (2016 site visits) adjacent to public roads or on Thornton -owned property and assessed natural resources via aerial imagery for areas that were inaccessible. ERO Resources Corporation Mr. Drue DeBerry U.S. Fish and Wildlife Service Page 3 March 15, 2017 Federal Threatened, Endangered, and Candidate Species ERO assessed the TWP corridor and study buffer for potential habitat for federally threatened, endangered, and candidate species protected under the Endangered Species Act (ESA). The Service lists several threatened and endangered species with potential habitat in Larimer, Weld, and Adams Counties, or with the potential to be affected by projects in Larimer, Weld, and Adams Counties (Error! Reference source not found.). No critical habitat for any federally listed species was identified within the TWP corridor. Table 1. Federally threatened, endangered, and candidate species potentially found in Larimer, Weld, and Adams Counties or potentially affected by projects in Larimer, Weld, and Adams Counties. Common Name Scientific Name Status' Habitat Mammals Canada lynx Lynx canadensis FT, SE Dense subalpine forest and willow -choked corridors along mountain streams and avalanche chutes North American wolverine Gulo gulo luscus FPT Deep, persistent, and reliable spring snow cover; primarily boreal forests, tundra, and western mountains Preble's meadow jumping mouse Zapus hudsonius preblei FT, ST Shrub riparian/wet meadows Birds Interior least tern" Sterna antillarum athalassos FE, SE Sandy/pebble beaches on lakes, reservoirs, and rivers Mexican spotted owl Strix occidentalis FT, ST Closed canopy forests in steep canyons Piping plover" Charadrius melodus FT, ST Sandy lakeshore beaches and river sandbars Whooping crane" Grus americana FE, SE Mudflats around reservoirs and in agricultural areas Fish Greenback cutthroat trout Oncorhynchus clarki stomias Fr, ST Cold, clear, gravely headwater streams and mountain lakes in the South Platte and Arkansas River Basins Pallid sturgeon" Scaphirhynchus albus FE Large, turbid, free -flowing rivers with a strong current and gravel or sandy substrate Insects Arapahoe snowfly Arsapnia arapahoe FC Cold, clean, well -oxygenated streams and rivers; found in only two tributaries (Elkhorn Creek and Young Gulch) of the Poudre River in Colorado Plants Colorado butterfly plant Gaura neomexicana ssp. coloradensis FT Subirrigated, alluvial soils on level floodplains and drainage bottoms between 5,000 and 6,400 feet in elevation North Park phacelia Phacelia formosula FE Found in North Park, Colorado between 8,000 and 8,300 feet in elevation; limited to eroded soil outcrops consisting of barren exposures of the Coalmont Formation Ute ladies' -tresses orchid Spiranthes diluvialis FT Moist to wet alluvial meadows, floodplains of perennial streams, and around springs and lakes below 6,500 feet in elevation ERO Resources Corporation Mr. Drue DeBerry U.S. Fish and Wildlife Service Page 4 March 15, 2017 Common Name Scientific Name Status' Habitat Western prairie fringed orchid" Platonthera praeclora FT Moist to wet prairies and meadows 'FE = Federally Endangered Species; FT = Federally Threatened Species; FC = Federal Candidate Species; FPT = Federally Proposed Threatened Species; SE = State Endangered Species; ST = State Threatened Species. "Water depletions in the South Platte River may affect the species and/or critical habitat in downstream reaches in other counties or states. Source: Service 2016. Other Sensitive Species In addition to species listed as threatened or endangered, ERO assessed the project area for potential habitat and the presence of species protected by the Migratory Bird Treaty Act (MBTA). Migratory birds, as well as their eggs and active nests, are protected under the MBTA. Migratory bird habitat typically includes trees and shrubs, but upland grasslands also are used for nesting. Three known bald eagle nest sites are within or near the TWP corridor. Colorado Parks and Wildlife (CPW) recommends seasonal restrictions for human activities within a 1z -mile radius of active nests from October 15 through July 31 (Colorado Division of Wildlife 2008). These buffers overlap the TWP corridor and study buffer. In addition, one known roost site is within the TWP corridor and study buffer. The TWP corridor and study buffer overlap bald eagle winter concentration and forage areas at several locations. Nine active raptor nests were observed during the 2016 site visits and four potential raptor nests were identified in the TWP corridor and study buffer. The raptors identified in the TWP corridor include red-tailed hawks, Swainson's hawks, and great horned owls. In addition, the CPW raptor nest database (CPW 2015) shows several red-tailed hawk nests located in or near the TWP corridor as well as a great horned owl (Bubo virginianus) nest in the TWP corridor. The short -eared owl (Asio flammeus) is likely to occur in or near the study area, although none were observed during the 2016 site visits. Owls are strongly associated with wetland habitats near extensive grasslands and are known to breed in Larimer, Weld, and Adams Counties (CPW 2016). Golden eagles are known to breed in eastern Larimer County. In addition, golden eagles have been known to breed in scattered locations in Weld County (Colorado Breeding Bird Atlas II 2016). No golden eagles currently nest in or near the TWP corridor (CPW 2015), although individuals may occasionally forage within the TWP corridor. No migratory bird nests were observed in the study area during the 2016 site visits; however, suitable nesting habitat is present throughout the study area. Ground - nesting and other birds could potentially nest in the grasslands and trees in and near the study area. The cattails and other wetland/riparian vegetation along the study area offer potential habitat for a variety of songbirds. Table 2 is a list of bird species of conservation concern (Service 2017) potentially found within the TWP corridor. ERO Resources Corporation Mr. Drue DeBerry U.S. Fish and Wildlife Service Page 5 March 15, 2017 Thornton plans to develop measures to avoid or minimize impacts to raptors and other migratory birds during TWP construction and will be coordinating with the Colorado Parks and Wildlife Area 4 wildlife manager prior to and during construction on the most effective means to minimize effects to raptors and other migratory birds. Table 2. Migratory birds potentially found within the TWP corridor. Common Name Scientific Name American bittern Botaurus lentiginosus Bald eagle Haliaeetus leucocephalus Black rosy -finch Leucosticte atrata Black swift Cypseloides niger Brewer's sparrow Spizella breweri Burrowing owl Athene cunicularia Cassin's finch Carpodacus cassinii Dickcissel Spiro Americana Ferruginous hawk Buteo regalis Flammulated owl Otus flammeolus Golden eagle Aquila chrysaetos Lark bunting Calamospiza melanocorys Lewis's woodpecker Meaanerpes lewis Loggerhead shrike Lanius ludovicianus Long -billed curlew Numenius americanus Mccown's longspur Calcarius mccownii Mountain plover Charadrius montanus Peregrine falcon Falco peregrinus Prairie falcon Falco mexicanus Red-headed woodpecker Meanerpes erythrocephalus Sage thrasher Oreoscoptes montanus Short -eared owl Asia flammeus Swainson's hawk Buteo swainsoni Virginia's warbler Vermivora virginiae Western grebe Aechmophorus occidentalis Williamson's sapsucker Sphyrapicus thyroideus Willow flycatcher Empidonax traillii ERO Resources Corporation Mr. Drue DeBerry U.S. Fish and Wildlife Service Page 6 March 15, 2017 Conclusions On behalf of Thornton, ERO requests concurrence from the Service on the lists provided above for potential federally listed species and migratory birds that may occur within the TWP corridor north of 120' Avenue or could be impacted by the project. ERO also requests the Service provide any comments or concerns regarding TWP at this early stage in the planning process. Thornton and ERO would also be glad to meet with the Service to discuss the project. If you have any questions or would like additional information, please call me at (303) 830-1188. We look forward to hearing from you. Sincerely, Moneka Worah Natural Resource Specialist Attachment cc: John Himyak — City of Thornton Jody Henry — CH2M, Inc. References Colorado Breeding Bird Atlas II (COBBA II). 2016. Breeding bird survey results. http://www.cobreedingbirdatlasii.org/. Last accessed July 25, 2016. Colorado Division of Wildlife (CDOW). 2008. Recommended buffer zones and seasonal restrictions for Colorado Raptor Nests. February. Colorado Parks and Wildlife (CPW). 2015. Raptor Nest Database provided to ERO Resources Corporation under Non -disclosure Agreement to keep nest location information confidential and sensitive. Colorado Parks and Wildlife (CPW). 2016. Short -eared Owl — Factsheet and Habitat Scorecard https://cpw.state.co.us/Documents/LandWater/WetlandsProgram/PrioritySpecies /Factsheet-and-Habitat-Scorecard_ShortEared%20Owl.pdf. U.S. Fish and Wildlife Service (Service). 2017. Endangered, Threatened, Proposed and Candidate Species and Migratory Birds. http://ecos.fws.gov/ipac/wizard/chooseLocation!prepare.action. ERO Resources Corporation '3140m 4es Park r, ;483 m Proposed Pump Station Site Horst tooth Reservoir FORT COLLINS LOYEL.4 ND NM AIRPORT YOKE BRAND AIR004T1 .Longmont Alternative Pump Station Location 'Fr Dacono ,Broortteld F Thor -t. Thornton Water Treatment Plant Proposed Tank Site 'Windsor Greeley _ Johnstown Milliken ,Platteville GREELEI WELD CO ,}AIRPORT Alternative Pump Station Location Alternative Pump Station Location tone erick fort Lupton 120th Avenue Hudson nrvYER1NtL ;AIRPORT Wes Brown Water Treatment Plant Thornton Water Project Adams, Larimer, and Weld Counties, Colorado TWP �--- Conceptual TWP Corridor and Study `---- Buffer - Additional Study Required Study Weld County Permit Application Weld County Permit Application Weld County Permit Application Larimer County Permit Application Figure 1 Vicinity Map Prepared for: City of Thornton File: 5241 Figure 1 Agency Letter.mxd [dIH] March 15, 2011 LRC) .SO Rtzos.rccs Cesh o.mons o4 +hPs document .nclude intellectual ofooe•+r of E$R! o^d :enso•s ono are used non. n .;nde• bconso Coorgh• C 2016 ESRI and ,•s !:censo•s Air t,gr s •ese•.ec Subject: FW: USFWS preliminary comments on proposed Thornton Water Project (TAILS # 2017 -TA -0660) [EXTERNAL] From: Vana-Miller, Sandy Sent: Thursday, April 20, 2017 4:42 PM To: Moneka Worah Subject: USFWS preliminary comments on proposed Thornton Water Project (TAILS # 2017 -TA -0660) Hi Moneka; I have reviewed your letter dated March 15, 2017 with attachments, for the subject project, which I received on 3/22/17. You mentioned on page 1 of your letter that the final alignment for the proposed project has not yet been determined; after which, Thornton (project proponent) plans to submit a habitat assessment to the Colorado ES Field Office. I will be able to comment more fully on the subject project when the final alignment/preferred alternative have been determined. Also at that time, I would like to discuss any known eagle nests and/or roosts within the project area; the USFWS-Region 6 recommends that project activities proposed within .5 mile of active nests take place from Sept. 1 -Dec. 31. Thank you, Sandy Vana-Miller Fish and Wildlife Biologist/Platte River Program USFWS, ES, Colorado Field Office P.O. Box 25486, DFC (MS 65412) Denver, Colorado 80225-0486 303-236-4748, fax 303-236-4005 1 A�City of rThornton Infrastructure Maintenance Center 12450 Wasnrngton Street Thornton. CO 80241-2405 www tnorntonwaterproject corn August 15, 2018 Mr. Deric Clemons USDA-NRCS Brighton Field Office 57 W. Bromley Ln. Brighton, CO 80601-3025 RE: Thornton Water Project/Stakeholder Coordination Request Dear Mr. Clemons: Infrastructure Department Thornton Water Project 720-977-67G0 Fax 720-977-6202 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) permit application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults, access manways, blow -off assemblies, air release vaults, and isolation valve vaults. Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located. Areas disturbed during pipeline construction will be restored to pre -construction conditions including grade and vegetation. Surface drainage best management practices will be implemented during construction and include the application of erosion control techniques. Mitigation measures to minimize impacts in areas subject to greater slope and soil erodibility will be implemented. Water pipeline crossings of jurisdictional waters will implement trenchless means of construction such as tunneling. A subsurface geotechnical investigation of geologic conditions utilizing soil borings will be completed as necessary during design to further determine the subsurface soil conditions and associated geological hazards. Mitigation measures will be further refined during design to meet site -specific geological hazards. Thank you and for questions, or to coordinate a meeting, please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectf h �o'hn Himyak Thornton Water Project Engineer Thornton Water Project - CR 32 41 PEST 4N CR16 FREDERICK ERIE/PKWY CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 1 inch = 2 miles 0 05 1 2 Wa7fMi_TNORNi6U_F$OiiTiERN_PROJECPPTASX ORDER 5151_PERIMTOi01019,WIPi1tkSsWELD_USPOVTREACMPA-i_ROPE UXO !MOM 1/19201$10504iA{A eTWP PA -1 Route —• County Boundary Railroad River/Stream/Canal/Ditch Lake/Reservoir 168TH AVE Figure 1 Thornton Water Project PA -1 Route Figure 1 Thornton Water Project PA -1 Route Fire District Boundaries accompanies each Fire District letter Thornton Water Project LONGMONT FIRE 1. TWP PA -1 Route Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 1 inch = 2 miles 0 05 1 2 8/1412018 bites IPTWP PA -1 Route Railroad - - County Boundary River/Stream/Canal/Ditch Lake/Reservoir Figure 1 Thornton Water Project PA -1 Route Fire District Boundaries City of .ae. Ale Thornton Irfrastructure Maintenance Center 12450 Washington Street Thornton, OO 80241-2405 www thorntonwaterproject.com August 15, 2018 Ms. Whitney Even/Deputy Fire Marshal Brighton Fire Rescue District 500 S. 41h Ave., 3rd Floor Brighton, CO 80601 RE: Thornton Water Project/Fire District Coordination Request Dear Ms. Even: Infrastructure Department Thornton Water Project 720-977-6700 Fax: 720-977-6202 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults. access manways, blow -off assemblies, air release vaults, and isolation valve vaults Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TA/VP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located within your fire district boundaries. Approximately 2.2 miles of the route is located within the Brighton Fire Rescue District boundaries. Thank you and for questions, or to coordinate a meeting. please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectf y ✓John Himyak Thornton Water Project Engineer Ak City of Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton, CO 80241-2405 www thorntonwaterproject.eom August 15, 2018 Mr. David Puccetti/Fire Prevention Specialist Frederick -Firestone Fire Protection District P.O. Box 129 Frederick. CO 80530-0129 RE: Thornton Water Project/Fire District Coordination Request Dear Mr. Puccetti: Infrastructure Department Thornton Water Project 72O977-6700 Fax 720-977-6202 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP) The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP. TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County. Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults, access manways, blow -off assemblies, air release vaults, and isolation valve vaults Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located within your fire district boundaries. Approximately 4.3 miles of the route is located within the Frederick -Firestone Fire Protection District boundaries. Thank you and for questions. or to coordinate a meeting, please contact me at John.Himyak@cltyofthornton.net or 720-977-6264. Respectfully John Himyak Thornton Water Project Engineer City of Ay Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 www thorntorwaterprolect corn August 15, 2018 Mr. Taw Tamlin/Fire Marshal Fort Lupton Fire Protection District 1121 Denver Ave. Fort Lupton, CO 80621 RE: Thornton Water Project/Fire District Coordination Request Dear Mr. Tamlin: Infrastructure Department Thornton Water Project 720-9 /7-6700 Fax 720-977-62.02 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP. TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County. Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults, access manways, blow -off assemblies, air release vaults, and isolation valve vaults. Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located within your fire district boundaries. Approximately 2.6 miles of the route is located within the Fort Lupton Fire Protection District boundaries. Thank you and for questions, or to coordinate a meeting please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respecjfu Jo n Himyak Thornton Water Project Engineer Ak City of Thornton Infrastructure Maintenance Center 12450 Washington Street Thorrton. CO 80241-2.405 Www tnorntonwaterproject corn August 15, 2018 Mr, Doug Saba Mountain View Fire Protection District 3561 N. Stagecoach Rd., Unit 200 Longmont, CO 80504 RE: Thornton Water Project/Fire District Coordination Request Dear Mr. Saba: Infrastructure Department Thornton Water Project 720-977-6700 Fax 720-977-62.02 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TVVP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TVVP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP. TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County. Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults. access manways, blow -off assemblies, air release vaults, and isolation valve vaults. Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located within your fire district boundaries. Approximately 5 miles of the route is located within the Mountain View Fire Protection District boundaries. Thank you and for questions, or to coordinate a meeting. please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectfully. hndril yaks:' "hornton Water Project Engineer City of .iae. Ale Thornton Infrastructure Maintenance Center 12450 Washington Street Thornton. CO 80241-2405 grow thorntonwaterproject corn August 28, 2018 Mr. Russ Kissler/Captain Platteville-Gilcrest Fire Protection District PO Box 407 Platteville, CO 80651-0407 RE: Thornton Water Project/Fire District Coordination Request Dear Mr. Kissler: infrastructure Department Thornton Water Project 720-977-500 Fax: 720-977-6202 The city of Thornton (Thornton) is contacting stakeholders regarding development of the Thornton Water Project (TWP). The TWP is a raw water pipeline delivery system that will convey Thornton's existing water rights from the Water Supply and Storage Company in Larimer County to Thornton. TWP components include over 60 miles of a buried water transmission pipeline and other necessary facilities in Larimer and Weld Counties. Thornton is developing a Use by Special Review (USR) application for a segment of the TWP, TWP Permit Application 1 (PA -1), which includes approximately 15.6 miles of a buried 48 -inch diameter water pipeline and associated appurtenances in Weld County, Colorado, with 12.5 miles in unincorporated areas of Weld County. TWP PA -1 appurtenances include buried fiber optic cable and various buried water pipeline components that may include valve vaults. access manways, blow -off assemblies. air release vaults. and isolation valve vaults Typically, a 50 -foot permanent easement for the water pipeline and an additional 40 -foot temporary easement for construction has been or is in the process of being purchased from property owners except where the TWP PA -1 is proposed to be constructed in road Right -of -Way (ROW). Through the USR permit process, various agencies in the area of the TWP PA -1 are likely to be contacted as a "Referral Agency" of Weld County to provide review and comment on the permit application. Thornton would welcome a meeting with local departments to ensure that department questions are addressed. The attached Figure 1 shows the TWP PA -1 where the water pipeline will be located within your fire district boundaries. Approximately 2.1 miles of the route is located within the Platteville-Gilcrest Fire Protection District boundaries. Thank you and for questions, or to coordinate a meeting. please contact me at John.Himyak@cityofthornton.net or 720-977-6264. Respectfully, J hn Himyak Thornton Water Project Engineer Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 Addendum 1 Qikk( Thornton it WATER PROJECT Submitted to: Weld County Department of Planning Services 1555 N. 17th Avenue Greeley, CO 80631 Dated: April 9, 2019 Prepared By: CH2M HILL 9191 South Jamaica Street .� CH2MHILL Englewood, CO 80112 Skk City of Thornton Prepared For: City of Thornton 9500 Civic Center Drive Thornton, CO 80229 Thornton Water Project — Weld County Permit Application 1 Addendum 1 Introduction The city of Thornton (Thornton), Colorado is requesting a Use by Special Review (USR) permit for the Thornton Water Project (TWP), Weld County Permit Application Segment 1 (PA -1), pursuant to Weld County Code (WCC), Chapter 23, Article II, Division 6 USR Permits for PIPELINE — DOMESTIC WATER. The TWP PA -1 involves a pipeline sixteen inches in diameter or larger and appurtenant components thereof (such as valves) designed for transporting domestic water in such pipeline and extending to locations outside of Weld County. The TWP PA -1 USR permit application (Application) with this Addendum 1 requests approval of a location to construct, operate, and maintain the TWP PA -1, which includes up to approximately 13.3 miles of a buried 48 -inch domestic water transmission pipeline (water pipeline) and associated appurtenances in unincorporated Weld County. TWP PA -1 appurtenances include buried valve assemblies, access manways, and fiber optic cable. This Addendum 1 addresses areas in unincorporated Weld County, which include private or public lands within the boundaries of Weld County that are outside the corporate boundaries of any municipality (city or town). This Addendum 1 addresses items required for submission by the WCC Chapter 23, Division 6, Section 23-2-S10 Application Requirements (WCC Section 23-2-510), the standards set forth in WCC Chapter 23, Division 6, Sections 23-2-480 and 490 (WCC Section 23-2-480 and WCC Section 23-2-490), and the items required for submission by the Weld County Use by Special Review (USR) Procedural Guide Checklist, Application Requirements (USR Procedural Guide Checklist). The siting and development of the TWP PA -1 conforms to Weld County USR permit requirements as described in the Application and this Addendum 1. Information provided in this Addendum 1 is intended to supplement or replace previously submitted Application material as noted. Thornton submitted the TWP PA -1 USR permit application (Application) on December 21, 2018. After that submission, Thornton was contacted by the Weld County Department of Planning Services Director to discuss the TWP PA -1 route located within the Dry Creek Regional Urbanization Area (RUA). Weld County recommended that the TWP PA -1 route be relocated outside of the RUA. In response to that recommendation, Thornton has changed approximately 1,030 feet of the TWP PA -1 alignment to be located outside of the Dry Creek RUA. Figure A1.1 shows the relocation of the water pipeline outside the Dry Creek RUA. TWP USR PA -1 ADDENDUM 1 INTRODUCTION THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 1 7C Approximate proposed 350 -1 Fee. ■ ■ I etacrn Ase e.44,.. to i 4ti P <r. J (jIbr�reek RUA FIGURE A1.1 Alignment Relocation Outside Dry Creek RUA After submission of the Application, Thornton's land services representatives have continued working with property owners along the TWP PA -1 route to explain pipeline construction, operations, and maintenance activities and to determine the location for the water pipeline that best meets property owners' preferences, including routing the water pipeline to minimize impacts to the operation of irrigation equipment, structures, trees, and other infrastructure, and future development plans. Because of negotiations with an individual property owner, approximately 920 feet of the TWP PA -1 alignment south of County Road 24 has changed to accommodate property owner concerns. The relocation was made to accommodate the property owner's request to minimize limitation to future development in the narrow portion of the parcel that is abutted by County Road 17 on the west and an irrigation ditch on the east. Approximately 2,720 feet of the TWP PA -1 alignment remains on parcels owned by this property owner. Figure A1.2 shows the relocation of the water pipeline to accommodate the property owner's request. The TWP PA -1 is being developed in a manner that is respectful of private property rights. TWP USR PA -1 ADDENDUM 1 INTRODUCTION All 2 THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 FIGURE A1.2 Alignment Relocation South of County Road 24 TWP USR PA -1 ADDENDUM 1 INTRODUCTION All -3 Thornton Water Project — Weld County Permit Application 1 Addendum 1 Replacement Figures This section replaces information provided in the Application as noted. Figures in the Application have been revised to include the TWP PA -1 route changes described in the Introduction and shown on Figure A1.1 and Figure A1.2 of this Addendum 1. Table A1.1 presents the Application figures that require replacement with figures included in this Addendum 1. Replacement figures follow Table A1.1. TABLE A1.1 Application Figures Replacement Application Figure Application Section* Application Page Number Replacement Figure Figure 4.2, Zoning within TWP PA -1 Figure 4.3, Town and GMA Boundaries within TWP PA -1 Route Figure 4.4, Possible Haul Routes Figure 4.5, Possible TWP PA -1 Access Locations Figure 4.6, Drainage and Erosion Control Figure 4.7, Potential Staging Locations Figure 7.2, Adjacent Property Owner Notification Area Figure 7.9, Adjacent Property Owner Notification Area Figure C.2.c-3.1, Drainage and Erosion Control Figure C.2.c-3.2, Soil Erodibility Figure C.2.c-7.1, TWP PA -1 Route Figure C.2.c-7.2, Possible TWP PA -1 Access Locations Section 4, USR Questionnaire Section 4, USR Questionnaire Section 4, USR Questionnaire Section 4, USR Questionnaire Section 4, USR Questionnaire Section 4, USR Questionnaire Section 7, List of Property Owners Section 7, List of Property Owners Section 11, Drainage Report Section 11, Drainage Report Section 12, Traffic Study Section 12, Traffic Study 4-4 Figure 4.2 Addendum 1, Zoning within TWP PA -1 4-6 Figure 4-3 Addendum 1, Town and GMA Boundaries within TWP PA -1 Route 4-15 4-18 4-20 Figure 4.4 Addendum 1, Possible Haul Routes Figure 4.5 Addendum 1, Possible TWP PA -1 Access Locations Figure 4.6 Addendum 1, Drainage and Erosion Control 4-22 Figure 4.7 Addendum 1, Potential Staging Locations 7-13 Figure 7.2 Addendum 1, Adjacent Property Owner Notification Area 7-20 Figure 7.9 Addendum 1, Adjacent Property Owner Notification Area 11-2 Figure C.2.c-3.1 Addendum 1, Drainage and Erosion Control Figure C.2.c-3.2 Addendum 1, Soil Erodibility 12-2 Figure C.2.c-7.1 Addendum 1, TWP PA - 1 Route 12-9 Figure C.2.c-7.2 Addendum 1, Possible TWP PA -1 Access Locations TWP USR PA -1 ADDENDUM 1 Al -1 THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 TABLE A1.1 Application Figures Replacement Application Figure Application Section* Application Page Number Replacement Figure Figure C.2.c-7.3, Possible Haul Routes Figure C.2.b.1, TWP PA -1 Route Figure C.2.d.3, Potential Staging Locations Figure C.2.i.1, Zoning within TWP PA -1 Figure C.2.i.2, Town and GMA Boundaries within TWP PA -1 Route Figure C.2.i.3, Soils Figure C.2.I, Possible Haul Routes Figure C.2.c-1, Floodplains Figure C.2.c-4, Geologic Hazards Section 12, Traffic Study Section C, Summary Statement Section C, Summary Statement Section C, Summary Statement Section C, Summary Statement Section C, Summary Statement Section C, Summary Statement 12-11 Figure C.2.c-7.3 Addendum 1, Possible Haul Routes C-8 Figure C.2.b.1 Addendum 1, TWP PA -1 Route C-27 Figure C.2.d.3 Addendum 1, Potential Staging Locations C-39 Figure C.2.i.1 Addendum 1, Zoning within TWP PA -1 C-41 Figure C.2.i.2 Addendum 1, Town and GMA Boundaries within TWP PA -1 Route C-58 Figure C.2.i.3 Addendum 1, Soils C-62 Figure C.2.I Addendum 1, Possible Haul Routes Attachment C.2.C-1-2 Figure C.2.c-1 Addendum 1, C.2.c-1, Floodplains Floodplain Information Attachment C.2.C-4-2 Figure C.2.c-4 Addendum 1, Geologic C.2.c-4, Geologic Hazards Information Hazards *Notes: Sections listed are in Volume 1 of the Application. TWP USR PA -1 ADDENDUM 1 Al -2 Thornton Water Project ZINNIA AVE N a - pR 5.8 NGMONT ERIE Psy ERIE a AU'INF 0 180TH AVE (l� — River/StreanVCarwWitch Figure 4.2 Addendum 1 Zoning within TWP PA -1 I- in 2 0 C x Thornton FIRESTONE S BLE AV /. FREDERICK BROOMFIELD EST0NE BD SAGE AVE PINE 'CO E DACONO CR 8 CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 4/6/2019 ell 0 Cuunti 1 inch - 1.2 miles 1.2 ■ Miles —' County Boundary -� Railroad .a Sim Eno eau co 1 7 _ TWP PA -1 Route in Unincorporated Weld County a and Current or Future Road Right -of -Way TWP PA -1 Route in a Unincorporated Weld County TWP PA -1 Route outside "" Unincorporated Weld County Lake/Reseneir Weld County Zoning E Agriculture ME Commercial I= Estate Industrial II PUD Residential ~9TH STi, E %z'4THST i- Q Q Y. C Z O CR 12 CR Corporate Boundary Brighton Broomfield Dacono Ene Firestone Fort Lupton Frederick Longmont Mead Northglenn Platteville Thornton This figure replaces Figure 4.2 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21. 2018. *PG2E9wEuf_t9N1ESDWfE_MAP9l9ECTIONMOCESDUI .20•PCi VC Jdav uNR+6'-0rd 47 AM WM7eiae_ THORNTON NORTHEA4 P4OSCTTAS{_GRt 56 PERMn GC Al -3 LONGMONT -) 7 CR 20.5 FREDERICK GMA FREDERICK CR 145 CR 8.75 ERIE•PS CR6 ERIE. BROOMFIELD o � co r r 160TH AVE N o cr I DACONO NORTHGLENN 168TH AVE THORNTON \., O 0 Thornton Water Project ADAMS AVE CR 32 MEAD 'N MEAD GMA 1 _ OR 26] r -ZINNIA AVE N 5 - U CR501,,,�, FIRESTONE GMA FIRESTONE FIRESTONE BD t ELM ST w SAGE AVE Z• O cc u. 8TH ST 2ND ST MAPLE DACONO GMA, r H in U IAA w (Thornton VAhERnROJEC' CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 0 1.2 4/2/2019 1 inch = 1 2 miles Miles PLATTEVILLE CR 18 188TH AVE I- N w TWP PA -I Route in Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in cum Unincorporated Weld County TWP PA -1 Route outside 666 Unincorporated Weld County —� Railroad River/Stream/Canal/Ditch Q Lake/Reservoir 440 FORT LUPTON 3 .3 n BRIGHTON BASELINE RD -w < < S F- BRIDGE ST Figure 4.3 Addendum 1 Town and GMA Boundaries within TWP PA -1 Route This figure replaces Figure 4.3 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application I dated December 21, 2018. W 4766!!-, 04NTONaCAt• C4s_,40-EC• 'A9c-O4 "ITT O'4•9UARC•_ ESWE C-.4W.dKF,vAPSSE"crIONIWCOE 1TNA_VA! MICA MC AUN.uYA16]]657 RV 54yvw, wa CJAr+ csTr1 CO0- A1.4 Thornton Water Project V) H C I � L CR28 CR 205 03 w TIPPLE --- w O O < CR14S FREDERICK CR 8.75 )CR 6 —. r• • ERIE` L. BROOMRELD o � 7 \, ISSAABLE AVE FIRESTONE BD PINE CONE AVE 1ST ST 8TH ST 2ND ST DACONO CR 8 168TH AVE THORNTON NORTHGLENN CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 S 0 06 TWP PA -1 Route in Unincorporated Weld County and Current or Future Road Right -d -Way TWP PA -1 Route in a Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County 1 2 ■ Miles —•• County Boundary — River!Streanvcanal/Ditch I Lake/Reservoir ♦► Possible Haul Route 1 CR18.5 FOI?T LUPTON a 1 iN,Jsm BRIGHT0ST BRIDGE ST Figure 4.4 Addendum 1 Possible Haul Routes This figure replaces Figure 4.4 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permrt Application 1 dated December 21, 2018. Thornton Water Project aNa AvE U NGMONT) ERIE") ERIE FcLLYST CR IS a CR 145 C .0 TIPPLE1pK FREDERICK CR 16 �.J 1 DACONO V ti 1 • ��t Z. i 1_L: �1 kP, [ BROOMF/ELD stilt; �- - Ax qp Ih7, 1 � l 160TH AVE Cr Thornton 1, TH• ORNTON {darn. County r-1R€STf-NEE BD 9044 ..b ELM ST bi -111 - z U. PINE CONE AVE Lal / CR 18 v.. N C MC i,LURE AVER 4.9.7 ST I 1Tti St ji 44- :73 v. :73 6TH sr 3 ?HIS 81H51 • 2NO ST CR 8 NORTHGLENN Icid Colinn. CR6 O CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 0 ;.T W ler" 3 � N J TWP PA -1 Route 1n Unincorporated Weld County Imri and Current or Future Road Right -d -Way TWP PA -1 Route in Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County 1 2 —••- County Boundary Riv a r! Str e a rnl C an al/Ditc h S 08 Miles • • PLATTEVILLE Lake/Reservoir Existing Access Location New Access Location DERV.ER 3 ▪ BRIGHTON . < t > / _ -Y T • /r 7 D -- r BUSH S I CR 22 CR IPS CR ¶6 4TH ST • $1.- 9TH ST 7TH_S .0 : ti: CR 12 CR6 CR 4 CR25 itsj&qc e > Z Figure 4.5 Addendum 1 Possible TWP PA -1 Access Locations This figure replaces Figure 4.5 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. 4/9/2019 W 47Oy_'I•ORS Oh_%OJTaEVh_vgDSC'1- AS& C70E R_,Y6 '_of Rant picccNyaac.,r 1 inch = 1 2 miles SRVK90.A0E u.V9vSEC'C aA. PO.Jv . CtSS . 3CA :NS MC QJY. JAM' s.11 AY Ss, tTEAR sail cots. µ5.. A1-8 Thornton Water Project L NGM0N 160TH AVE -ADAMS ' VE FIRESTONE T&VLEr _Sit 16 1S ST \j AP -St FREDERICK 8TH ST Q , at 1019000507 Bouldef`Creek-Saint Vrain Creek Basin (raiThornton DACONO z 166TNAvE ' PNE GONE AVE _ - - U W C W CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 S 0 0.6 1.2 Miles —" County Boundary 4/2/2019 1 inch . 1 2 miles -- Railroad 1019000304 Big Dry Creek -South Platte River Basin -$ GRANO A • Neldpuiftl• �,betN41=.. .. N -yamsCount•,_ W. I- TWP PA -1 Route in Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA 1 Route in Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County — Stream/Rrver/CanaVDitch �I Lake/Reservoir I HUC 10 Boundary Drainage Flow Director t00ft Contour 20ft Contour f 9!.. S. PTON t BRIGHT° Kis S T - Figure 4.6 Addendum 1 Drainage and Erosion Control This figure replaces Figure 4.6 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. Sa.•w. Y•J ., SGS Can. At -7 N L M.'--::A`.•5h_tiO+i -?7`. »O.F_C"t"*S. J+*X id' .ECV'•v,C 9YAse ctsc_1",_.3AYtCSolKE_VA LrG"C r.ca`a ,-.AA..,. : uC-o^s:`. ;^`: 4'J LL[:.d.w'. N)1{ al-: Thornton Water Project rn+IA AVE CR87S ERIE ERIE • 9 L • ADAMS AVE CR 40 Acvlrocjc. BROOMFIELD .1.43 160TH 160TH AVE Cry Thornton FIRESTONE BO PINE'CONE AVE v: C a• 1ST ST "4;4 ticT- 1 STHS1 a S2 8TH ST 21•40 it I` .. DA/ONO CR 8 Li CR6 2 NORTHGLENN c ,r"..) fs-I 11chi ( rrrrntt• THORNTON CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/2/2019 Idioms ( (runty 0 Cu n 6. I— S 0.8 1 inch = 1 2 miles 12 TWP PA -1 Route in Unincorporated Weld County a and Current or Future Road Right -of -Way TWP PA -1 Route in a' Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County Miles —..— County Boundary River/Strea rwCanaUDitch PLATTEVILLE CR 22 at 185 CR 16 1+' -S - P1H SI CR 12 CR 8 CR4 CR4 CR 23 0 BRIGHTON > ` -91 < < w - z r.< 1 gUSHST. l ) take/Reservoir QPotential Staging Locab&n y s; •1 oENlrRsr .y. Figure 4.7 Addendum 1 Potential Staging Locations This figure replaces Figure 4.7 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. SD. of COW4 At%MOW T.OR -OH_vrn• 4 1. PaCJECnwoi$+. Oa DEQ $6•Ka m'* non'1s+rAPr .E SWF_ .-srars?n_YAP9SFc*.O$M1r 0JJ AC 'C 'Ca NS VC B.iN. OL7CG 17.» Al -8 Thornton Water Project Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/9/2019 250 500 eea Feet 1 inch = 500 feet n Notification Area — SOft Easement Boundary (Unincorporated) - - Soft Easement Boundary (Incorporated) Parcel Boundary Railroad Lake/Reservar R1ve d$treant/Canal0ltch Figure 7.2 Addendum 1 Adjacent Property Owner Notification Area This figure replaces Figure 7.2 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. SRO Croats 9-007 Al Mot . •O.P. A'J.tC ".'Y4 IsN P' •t.wr-.pa. A.T, lsoy, VIM(tOu•C, wil&C'VMMDoE.3c.'MD:ACf.1,A{Ung't IS.40Is4fO,.Ass• SPOON MID IOM.s/10(snssslA. Thornton Water Project aThornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON CO 80241 24 05 FIRESTONE BO a 0 250 500 al Feet 1 inch = 500 feet Q Notification Area 508 Easement Boundary (Unincorporated) 508 Easement Boundary (Incorporated) Parcel Boundary Railroad Lake/Reservar River/Stream/Canal/Ditch a OP 300 ft Corporate Boundary FIRESTONE Figure 7.9 Addendum 1 Adjacent Property Owner Notification Area This figure replaces Figure 7.9 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. 4/9/2019 MI 043/4 Cs .o+ ♦ NQ .y s. ,. w T.14W.,ii. SSW( to a,.. ma c' W}YC'Wbtl SCUIOWcoiI*Hftn, wartsrow ut. ...swot n. AM *nix• . tillr AS So s on NHO USG& CaVa wp „X/01 1.10 Thornton Water Project u ZINNIA AVE FIRESTONE FIRESTONE PINE CONE AVE n CR18 GP S / T IPPLEI KWY FREDERICK BROOMFIELD *60TH AVE Thornton WATER Pn 2 r= C.; 'ST ST 4Th S' e'R>T DACONO NORTHGLENN CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 S 0 06 12 Miles — •• County Boundary 412/2019 1 inch t= 1.2 miles -- Railroad 9TH SI`• 9Tr, ST 7TH S' l 1019000306 Little.Dry Creek -South out Platte River Basin CR 14 5 1019000304 Big Dry Creek -South Platte River Basin held (:uutits. �.. �. �.. :�T ::VEi. ...I... �.. . ! titsaitt.t Ro Adams Cnnnit'._ U �l FORT LUPTON 4TN CR 425 sl CR25 TWP PA -1 Route in Unncorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in Unncorporated Weld County TWP PA -1 Route outside Unincorporated Weld County - Strearn/Rrver/CartS/Ditch Lake/Resec olr HUC 10 Boundary Dunnage Flow Dlrecton 1i 10011 Contour 20fl Contour I BRIGHTON / .F.m .1BRIDGE ST r eustr ST.1 4 Figure C.2.c-3.1 Addendum 1 Drainage and Erosion Control This figure replaces Figure C.2.c-3.1 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. Sowtwf `RO '.i5G 'WA *.c 908 TNORo4_404 _q4-TrRdEC''a OR 4 5K •_>'(RU R ic6t liSaap tr9NE. 3_ U9hitriaRCE_MMASECOBMNDOPak" A-MCE. IAD t tO C VYRO 4&C .0A51/24:51 'Y J t., >V Al.11 Thornton Water Project .V. PiN(. 160TH AVE MEAD L .FIRESTONE_ ,- 1H DR O m_ S9BL£ AVE _„FREDERICK MFIELD ,NORTHGLENN CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 FIRESTONE BD SAGE AVE ELM ST PINECONE AVE Held County 47- i dant% County 0 06 12 a Miles 1 inch = 1 2 miles CR 16 TWP PA.1 Route in Unincorporated Weld County ems and Current or Future Road Right -of -Way TWP PA -1 Route in - Unincorporated Weld County TWP PA 1 Route outside Unincorporated Weld County County Boundary Railroad Soil Erodibility (K Factor) PLATTEVILLE CR 32.50 CR 22.8_ CR185 FORTLUPTON J � — River/StrearrVCanaWitch Figure C.2.c-3.2 Addendum 1 Lake/Reservoir Soil Erodibility This figure replaces Figure C.2_c-3.2 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. Sn.ev. PACS ♦..] =O* M.. Caen ©C• Thornton Water Project CR 8.75 ERIE! ERIE 160TH AVE I- in 2 0 S Thornton ADAMS AVE FIRESTONE BD S!}BLE AVE ' CR 20 RINE'CONE AVE CI•10 BROOMFIELD THORNTON t- in CC a O T ST 8TH 5T! DACONO 168TH AVE CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/2/2019 CR 4 lk NORTHGLENN }Ii l -2l L I Lake/Reservoir Figure C.2.c-7.1 Addendum 1 J 5 CR6 S 0 06 1.2 'Miles 1 inch = 1.2 miles CR 16 TWP PA -1 Route in Unincorporated Weld County - and Current or Future Road Right -of -Way TWP PA -1 Route in - Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County Railroad — River/Strearn/CanaliDitch 168TH AVE CR 32.50 CR 305 -- PLATTEVILLE r CR 22.5 \ I CR 18.5 FO-TLUPTON CR 12 CR8 CR 2.5 BASELINE RD > > w > a a < ..2.. i- kl. 1: 2 - (' WALNUT ST BRIGHTON B[SH ST BRIDGE ST ) TWP PA -1 Route This figure replaces Figure C.2.c•7.1 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. 511 ',H caw •*.a W M7EOps._TloRNTO._%0RT'•ERV_ORp&{TI'AIDf-OROER-5b¶ PERMTT n1CI N1APF•i SMVFL 7 LATR%SOuRCE MAPSSECPOMNDDEMIAH1MP PAS O2r MC Auk. 40/7010 7 26 50 A1-13 Thornton Water Project ZINNIA AVE W 3 HOLLY ST re 52 CR 1t s CR875 ERIE L. 4 180TH AVE (r C ADAMS AVE f : 1 CR CR_.BROOMFIELD Thornton 1 FIRESTONE , - 1ST ST 4Th 51 n z 4- - t J FIRESTONE BD PINE CONE AVE 7Tu S. - 52 NORTHGLENN r,11 f1 AVE tHORNMN es " Y cc CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 4/2/2019 0 S 06 1 s� eaa� 1 inch = 1 2 miles I/1 a 2 Miles CR6 TWP PA -1 Route in Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in Unncorporated Weld County TWP PA -1 Route outside Unincorporated Weld County County Boundary Rive r/SUea nVCanal/Ditch L• ATTEVILLE W W78085_ TNORMOM_NA4•..544-A40wC-%, ASS(_00Dr i>5• .�e qM..' %CCS A-" .ESNF__6u59va.SOuRCE WP9SECTIpMADORCU UCCESS.LOCA"O•6fW AWf'VX20i9] 1, 50 • • Lake/Reservoir Existing Access Location New Access Location .z O GRAND A 9_ BRIGHTON'!. &JSIts?_flRi0GE ST T LUPTON ITR ST .9tH srDTH 8 CR 25 BASELNE RD 0 2 t Figure C.2.c-7.2 Addendum 1 Possible TWP PA -1 Access Locations This figure replaces Figure C.2.c-7.2 Included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. Senor, ctiw rNc Cwn Q) A1-14 F included Thornton Water Project CR 10 CR 8.75 CR6 ERIE` L. '."If.%1 �L.. — - / co D--0------7 BROOMFIELD 0 7 P 5 160TH AVE ADAMS AVE FIRESTONE BO m ':cc ELM ST — SAGE AVE i. MAPLE cc u. 8TH ST DACONO 168TH AVE PINE' CONE AVE THORNTON NORTHGLENN r N U W • CD w //O . PLATTEVILLE CR 32 CR 30 R26 CR 22 CR 18.5 T LUP e N J. CR 16 ST CR 12 CR 8 CR 4 CR2.5 1 LELINERD 168TH AVE u Lake/Resent ♦* Possible Haul Route C., 1 N 2 O U 7T! Q li II// a 0 BRIGHTON BUSH Sr BRIDGE sr Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/2/2019 0 S 06 1 inch a 1 2 mks 1 TWP PA -1 Route in Unincorporated Weld County - and Current or Future Road Right -of -Way TWP PA -1 Route in - Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County 2 Miles —•• County Boundary — River/Streem/CanadDitch Figure C.2.c-7.3 Addendum 1 Possible Haul Routes This figure replaces Figure C.2.c-7.3 included in the Thornton Water Protect Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. Al -1 Thornton Water Project U, cc U C U a CR 14 5 CR 8.75 ERIEP ERIE BROOSELD 160TH AVE ADAMS AVE ----7TH ST 811.4 ST FIRESTONE BO PINE CONE AVE DACONO CR8 168TH AVE CITY OF THORNTON COLORADO qr.,„„,,,,,,„!, 12450 WASHINGTON ST THORNTON, CO 80241-2405 42/2019 NORTHGLENN n 0 S 06 1.2 1 Inch s 1 2 miles Miles N U 188TH AVE N f Y TWP PA -1 Route in Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in Unincorporated Weld County TWP PA -1 Route outside "" Unincorporated Weld County — Railroad — Rner/StreamVCana/Ditch I PLATTEVILLE i3 U CIS 24.5 \ ! CR 183 FO'TLUPTON r i•�.,-i 4TH ST 2 C N U BRIGHTON ELINE RD >. W > A al, WALNUT ST HST _ BRIDGE ST Lake/Reservoir Figure C.2.b.1 Addendum 1 TWP PA -1 Route This figure replaces Figure C.2.b.1 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. ewe ••0Rh •.%O7' .R`. 'RA -EC AU_ ?RXFR 56 .ANcr<9>JCE Yw a c-.o'a&irAN`irtio • a1 -r sic .o.. UY)t I}0071 NV S.. at ' o 'Yea w. can+ A1.18 Thornton Water Project CR 07s ERIE ERIE 0 `m Ca HOLLY ST CR 145 dr N-; -- 10 ADAMS AVE FIRESTONE 8O FIRESTONE HOR 8 8O ELM ST N I ac LL PINE. tONE AVE 1 IPPLE'f w'' FR E (ERICK At 91m: A ______ iBR •• OOMFIELD / �E�` a I vl�y '50TH AVE (1/41-4- Thornton DON !n. _ CR 10 N h.. Mt aLitiE AVE CR 16 151 51 -4TH S; . - - CR12 t JL tr i •THsT 4 �auIS ODt St' 2NO S 1 . :"AVEE.ilc Id County, THORNTON g 'cr � )- w g atilt;:% County CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/22019 S 0 0.6 1.2 CMINECMiles 1 inch = 1 2 roles • • • • • • V U e- 0 CR20 CR 24 TWP PA -1 Route in Unincorporated Weld County a and Current or Future Road Right -of -Way TWP PA -1 Route in Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County County Boundary Rive r/ Strea MC ana VDitc h 4- N • c l PLATTEVILLE CR 18S FO'TLU ieN a t$ 1 BASEL 11Ei r ijUSH ST N - 7. LakelReserwlr Figure C.2.d.3 Addendum 1 Potential Staging Potential Staging Location Locations This figure replaces Figure C2 -d.3 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. ft). calve Avg coax moo• Al -17 A5[0RDER_ 316'AERNI TT MO i-3tmatio AC.�- v.PSStCt. O' nccecuw csascyourco6 Isom AWM 41110107 Mt NI Thornton Water Project ¶60TH AVE r - In 2 C 3 long as TIPPLE PKWY BROOMFIELD SABLE AV DA -ONO PINE C 1ST R'd ST AT.. ST U) N U Ca w 3 :o • .�.. _..�..'TH A.1—.. -. I- N W co BRIGHT Corporate Boundary Brighton Broomfielo Dacono Erie Firestone Fort LL;.: - Fredenck Longmont Mead Northglenn Platteville Thornton (r Thornton CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 4/212019 S Ir. 0 06 12 Miles -. 1 Inch = 1.2 miles TWP PA -1 Route in Unincorporated Weld County and Current or Future R Right -of -Way TWP PA -1 Route in Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County County Boundary Railrced — River/Stream/Canal/Ditch Figure C.2.i.1 Addendum 1 n Lake/Reservoir Zoning within TWP PA -1 Weld County Zoning illlll� Agriculture En Commercial Mil Estate Industrial II PUD Residential This figure replaces Figure C.2.i.1 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. lie ••Gel •..•v w. 'MV :3Vh L':cl W147111186f WN�.•EA� w3ECISTM _ orx43G • PERhhr rHGG•.s.W.pr IKEt,. 7k8Q.NCE_ MMASEC T *?.M W9flM1,LO a'C U C` A.i.N QWW$ 2 33 51 PM Al -18 Thornton Water Project ZINNIA AVE U So 0 W Ui W a U c CR t45 CR 8.75 ERIERSWY CR6 ERIE. 160TH AVE O MEAD N MEAD GMA O FIRESTONE GMA FIRESTONEJJRESTONE BD 6Th DR / Il °m' ,SiABLE AVE FREDERICK GMA FREDERICK ., tJ DACONO BROOMFIELD N°RTHGLENN Thornton AiA;EF, 168TH AVE THORNTON CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 2ND 5T DACONO GM4 0 S 0.6 4/2/2019 1inch = 1.2 miles 12 Miles LATTEVILLE 168TH AVE n TWP PA -1 Route in - Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in - Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County — Railroad — Rive r/StrearniCanaVDitch _ Lake/Reservoir z C N U FORTLUPT Z. 14TH ST r -r BRIGHTON 1 - 5RIDGE ST Figure C.2.i.2 Addendum 1 Town and GMA Boundaries within TWP PA -1 Route This figure replaces Figure C.2.i.2 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. W 76151 rM04M7ON,NO4T4E4N P40JECn-A9c, 34Df4-561 PERW^w61C-9MAC .-E$ivet .:5RRESOL CE 4APSISECTIOWNOCE1Cw•0.nP_N+ • C VAMC ./):.M. 430319 35 57 PO At -19 Tars MON Thornton Water Project a) ZINNIA AVE .n di56 1/MONT) Jr J — r f 'FIRES e N FREDERI 8T1-i ST Soils Crossed by TWP PA -I Altvan loam. 0 to 1 percent slopes Aquolls and Aquents gravelly substratum Aquolls and Aquents. flooded Bankard sandy loam 0 to 3 percent slopes, frequently flooded Heldt silty clay 1 to 3 percent slopes I Kim loam. 5 to 9 percent slopes Loup-Boel loamy sands. 0 to 3 percent slopes Nunn clay loam 0 to 1 percent slopes Nunn clay loam. 1 to 3 percent slopes Nunn loam, 0 to 1 percent slopes Nunn loam. 1 to 3 percent slopes Olney fine sandy loam 1 to 3 percent slopes Olney fine sandy loam 3 to 5 percent slopes Olney loamy sand. 1 to 3 percent slopes Renohill clay loam 3 to 9 percent slopes Tassel fine sandy loam 5 to 20 percent slopes 1 Ulm clay loam. 3 to 5 percent slopes Valent sand. 3 to 9 percent slopes Vona loamy sand, 0 to 3 percent slopes Vona loamy sand all Vona sandy loam Vona sandy loam Water 3 to 5 percent slopes 1 to 3 percent slopes 3 to 5 percent slopes Weld loam 0 to 1 percent slopes Weld loam 1 to 3 percent slopes Wiley -Colby complex 1 to 3 percent slopes Wiley -Colby complex 3 to 5 percent slopes c� Thornton YI At EA PAC.: • CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 S 0.6 0 PINE tONE AVE 1 a 2 Miles —' County Boundary - Railroad N w TWP PA -1 Route in Unincorporated Weld County a and Current or Future Road Right -of -Way TWP PA -1 Route in Unincorporated Weed County TWP PA -1 Route outside "" Unincorporated Weld County PLATTEVILLE T A E 5� •r O (n I- ✓ CR le.5 FORT LUPTON 3 CR 4 CR 2.5 ( ELINE RD F••• 2 12 Q u�yy2- 4 ≥ � Z Z m BRIGHTON' 1 BUS' ST BRIDGE ST Rcver,StrearwCanai/Drtch Figure C.2.i.3 Addendum 1 Lake/Reservoir Soils This figure replaces Figure C.2.i.3 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. 412/2019 1 inch = 1.2 males N,11SW. 'I0ANY0N...ZI1 AO£C'l'4e(_oA0ER- 1.6 CFI ii*CC '4YACr EiMFCD-..IFIRESCJCE_MAo9SECTP0wU00[NM1ISO •%Svc A.e. 4'YC • AAco ow At -20 Thornton Water Project LONGMONT j CR 10 CR 8.75 CR 6 ERIEL. ` tn7) r‘toii mac:.-- xI ipl....� BROOMFIELD Q\ e 160TH AVE Cr Thornton WATER PROJEC' Lake/Reserveu ADAMS AVE CR 32 SABLE AVE LATTEVILLE FIRESTONE BD CR 24 CR22 PINECONE AVE CR 16 1ST ST 8TH ST I_ 1 � Wf. .i r THORNTON 168TH AVE NORTHGLENN n CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON. CO 80241-2405 4/22019 S 0 06 1.2 Miles '" 1 inch = 1 2 moles TWP PA -1 Route in Unincorporated Weld County and Current or Future Road Right -of -Way TWP PA -1 Route in Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County County Boundary River/Stream/Canal/Ditch 168TH AVE t H Possible Haul Route CR 6 s 440 CR 18.5 T LUPT,QN CR 16 14TH ST 7-THlST w_ __ __caOCS - 2. - CR12 • LL CR 8 CR4 CR25 :BASELINE RD C O2 yr = w U Q m -"BRIGHTON. su!lsT BRIDGE ST Figure C.2.I Addendum 1 Possible Haul Routes This figure replaces Figure C.2.I included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. SPv'an v"O C JNR IRO c..ojn W 1471C!!_TR0RNTOV-N0RTHERM DROJCLTT ASA.ORDER 3161 PERM, TFMG4.944 x.._ 9M. 5_ ..5RJlEESOLICE-MFPSi4ECTiONJACOPX04, h41- ROVES MYO JOukN UJrl01974923 PM Al -21 Thornton Water Project in CN: N _ * U :ZINNIA AVE 160TH AVE CR 8.15_ CR6 Thornton • CR m DACONO CR 12 CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 CR261 FIRESTONE BD co ck ELM ST SAGE AVE i MAPLE O ix LL PINE' CONE AVE 8THST ?ND ST 1 inch = 12 miles CR 22— TWP PA -1 Route in Unincorporated Weid County and Current or Future Road Right -of -Way TWP PA -1 Route in IlImm Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County County Boundary Railroad LATTEVIL 14TH ST . rBASELINE RD i67 < BRIGHTO ? 2 LONGS PEAK ST �- WALNUT ST BRIDGE ST — River/StreanVCanaVOitch Figure C.2.c-1 Addendum 1 1--1 Lake/Reservoir Floodplains IIIII 100-yr Flood Fnnge This figure replaces Figure C.2.c-1 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. 100-yr Floodway Thornton Water Project ZINNIA AVE L.NGMONV ys 160TH AV c� Thornton ADAMS AVE FIRESTONE SABLE AVE FREDERI MFIELD CITY OF THORNTON COLORADO 12450 WASHINGTON ST THORNTON, CO 80241-2405 FIRESTONE BO PINE 6(NJE AVE S 0 0.6 1.2 a Miles 1 inch = 1 2 miles CR4 J TWP PA -1 Route in Unincorporated Weld County - and Current or Future Road Right -of -Way TWP PA -1 Route in silm Unincorporated Weld County TWP PA -1 Route outside Unincorporated Weld County •—• County Boundary .._1STHAyi Railroad Rrve r/Strea mVCanal/Ddch Lake/Reservoir Fault Line Mine Extent Depth of Cover above Abandoned Coal Mines 10.49 50-99 100-149 150-199 FORT LUPT0N 3 r t 9T 200 - 249 250-299 In 300-349 350-399 400 • 9999 Figure C.2.c-4 Addendum 1 Geologic Hazards This figure replaces Figure C.2.c-4 included in the Thornton Water Project Weld County Use by Special Review for Pipelines Permit Application 1 dated December 21, 2018. W ureom NTON_NOQTMEQN ra4oECTTTASK_ORDER_SK 1 -PER W C,A4 E9MfLD_u9RAESO RCE_MAPSSECPOM.AODE0QN1TCCOtOGC -# AY$' 3 v,i O71 0305 is. THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 Replacement USR Maps This section replaces information provided in Volume 3 of the Application as noted. USR Maps in the Application, Volume 3, USR XX-XXXX Permit Maps have been revised to include the TWP PA -1 route changes described in the Introduction and shown on Figure A1.1 and Figure A1.2 of this Addendum 1. Table A1.2 presents the Application USR Maps that require replacement with maps included in this Addendum 1. Replacement USR Maps follow Table A1.2. TABLE A1.2 Application USR Maps Replacement Application USR Map Volume 3 Sheet Number Replacement USR Map USR XX-XXXX Key Map USR XX-XXXX Vicinity Map USR XX-XXXX Permit Map 4 USR XX-XXXX Permit Map 5 USR XX -XXXX Permit Map 42 USR XX-XXXX Permit Map 43 3 of 61 4 of 61 9 of 61 10 of 61 48 of 61 48 of 61 USR XX -XXXX Key Map, Addendum 1* USR XX-XXXX Vicinity Map, Addendum 1* USR XX-XXXX Permit Map 4, Addendum 1* USR XX-XXXX Permit Map 5, Addendum 1* USR XX-XXXX Permit Map 42, Addendum 1* USR XX-XXXX Permit Map 43, Addendum 1* Addendum information is included on the revision block. TWP USR PA -1 ADDENDUM 1 Al 24 r St -IV Wd OGltt 3WI1 lOld 9040161Ot 731Y01O1d uttrdWIAat :3AVN311i HIYdMdS 1HC`McS 1910 C 173N9 owl 9,000 rotld ROC 11NdY 31Y(I 371/34 ASIN3l1 C U) m� D C 4 P C') O - cn -170m CmK° _4C0 o z '9102 ' LZ a39W3030 031V0 L NOI1V3I1ddV 1IW2i3d S3NI13dId 2JO3 M3IA3a 1VI03dS A8 3Sf1 .11Nf100 013M 103rObd 1131VM NO1NHOH1 3H1 NI 03Of110NI dVW A3N S30V1d3b dVW bsn SIH1 a® el .. PS I 01 cI z dAl JL1Otl 1•Yd EINU ► 6 ONOJYO 10 AID NI 992 t .O .1 _" O. 1: CC P f r Y. , . rt iL , i 1'l illv,d NI ICI .. et K 9..' cc .. tr V a Bt CC t z c V a r tl i1 01 3N015OW 1 1Y101 Arts, 6 el Pt ►1 It S: :. dA! SNI1 Nb11'li`. 1 CI ce eC rE V_ NJIII303Ita SO NMOI NI "OWL 91 to 96 of = i i r OZ Sl ,0l c 9 li % 04' 6i. .:1 dAl tl39W11N / dWI 11110114.1 M/9 NI 64 OP S£ 0E SZ C 9 II 9 6:' Ct iNCll^ibli NI NI olive, •Will, Bitcnl11) 4 L I s. of .1 ML9 NC OS a• .. • :i 99 cc if ML9 NC ' y a' M99 Nt + pg� 2 ►/ Cl •. .. GI to .. .E Z dA1 M99 NZ NI tl39Y1/,N a. U -.spitz. f Cl Cl ►C 'v {1 ►1 Cl 4.' 1 O1 ci ... is if = M9 ea f el el dAl 1011YN ONY dINWMOi II N Ot CI 9 NI = a. i r[ ,,. �i CZ Ji . CC LL rl s i I 2 I ' I 4 I I 6 Z re O L -O0 , • IY - d I 4 't • • L i .. _ CC co d z i a ih ��• I — p ..�. :> 0 _ p U k , - --, - ��w---r-=�- • - _ate: _ t-�— $ 3 MEAD - > A .I I I. 1 / II C w �^, - -�.), ? �. P .. m b € l FREDERICK • _,.. IT / / — • i A • UIE DACONO i ,r .. ? J ' -- --• n • ; !�� ,. -. ._. . - .-_.. FIRESTONE • ,I 11 L a if 6l 11 i7 d COUNTY ROAD 15 y .•' SillJ ..: �, lit ... R o Q COUNTY ROAD 15 id v Z a11 *v • ..� O - BOOSTER PUW .& C c- g w� ' .. Q O tz j I Cr' c_9 = Cr _ t --"...4. STATION IN FWfiSTONfi t' .. • I• • r� = toI-1 II iI _ 4 ., I! .rIO q YhI A ' ;''••?OnF-y3�Ii 1- I 121 OD y� V. _ 0' y O 0• i • t O ' e• �, J C§ O _ 4 N' 0 COUNTY ROAD 17 • O i—! COUNTY ROAD 17 OITOTAL C..) i},v • COUNTY IN CITYOF OACONO• ROAD 19 } — !1126' W TOWN of FREDERICK •' TOWN 01. PINES TONY. COUNTY ROAD 19 - JOE l264' 11i PU,t ilVkLF i 8 d 11 Iyp4 CAli a. . T.;. `ice u Y Y' a - 13 O -A •, . b t`. (vc, o pt! 1 1• [-A n n q n 1 P to n 2 7 O ; 61 & o ke 1 e$ w 1 n I b Ii -. • II i I It i A t 7 I n I. I 2 t n w •1 I . _ !1 USR XX-XXXX VICINITY MAP S 4 Y _ A 11 I >I t • .I •I T A H 11 i H 1 • • A n II ., - -�-.. ,. c �• ., .• , w . •• P .r •I PLATTEVILLE , _...„--- o Oz VERIFY SCALE THIS USR MAP REPLACES VICINITY MAP INCLUDED IN THE WI Y OWL ICI 611 ��I. THORNTON WATER PROJECT WELD COUNTY USE BY SPECIAL DATE *PPM. 2012 REVIEW FOR PIPELINES PERMIT APPLICATION 1 DATED PRa 000161 DECEMBER 21, 2018. DWG SHEET 4 0161 2PWURL SPWPATH FILENAME: WCPMIP2_USGSA2n PLOT DATE: 201904106 PLOT TIME: 3:20"12 FIN A1-26 11 3 1 4 C- 0 LOT A RECORDED EXEMPTION 1469 -32 -1 -RE 2461 NEC. 2695.15 PN: 146932000014 1-4 t ASEMENT NOTES - PARCEL 14 0 THAT PETROLEUM PIPELINE EASEMENT ()RANTED TO PANHANDLE. EASTERN PPE LINE CO. AS DESCRIBED IN INSTRUMENT RECORDED MAY 1, 1973, AS RECEPTION NO. 1612336 I IS NOT MATHEMATICALLY DEFINED AND NO WIDTH IN STATED IT IS THEREFORE NOT SHOWN ON THIS MAP IT T6 SAD TOAFFECT THE t NE 1N AND PART OF THE NW1/4 OF SECTION 32 (EXCEPTION 14) LOT B RECORDED EXEMPTION 1469 -32 -1 -RE 2461 •• • LL w FL • • • • • • • • BARBED VINE FENCE TWP PA•140' TEMPORARY CONSTRUC TION EASEMENT C C - TWP PA•1 60' PERMANENT EASEMENT EL v. • • AND FUTURE REC. 2696415 PN: 146932000015 11.21 U 7 L ire ®1 p1 0 ` BARBEE, m..,. FENCE o= 60 T00 _ ISM 150 SFUM is Fen • NE1/4 EASEMENT NOTES - PARCEL 14 T. THAT PE TROLE UM PIPELINE EASEMENT GRANTED TO PAMANOLE EASTERN PIPE LINE SEC. 32 CO. AS DESCRIBED IN INSTRUMENT RECORDED MAY 1. 073. AS RECEPTION NO. 1612336 IS NOT MATHEMATICALLY DEFINED AND NO WIDTH IS STATED. R IS THEREFORE NOT SHOWN ON THIS MAP_ IT IS SAD TO AFFECT THE NET/4 AND PART OF THE NW1N Of SECTION 32 (EXCEPTION 16) 2. THAT 30' PETROLEUM PIPELINE EASEMENT GRANTED TO SASH EXPLORATION, INC IN INSTRUMENT RECORDED NOVEMBER 2, 1962. AS RECEPTION NO 2309323 AFFECTS THE NE114 OF SECTION 32 THE SE 1/4 OF SECTION 28, AND THE SE 1N OF SECTION 29, TIN, ROW ITS POSITION IS OIMAPHCALLY SHOWN ON A SKETCH INCLUDED AS EXHIBIT' A' BUT CAN ONLY SE USED TO DETERMINE ITS APPROXIMATE POSITION. (EXCEPTIONS 16. T9.21) THOSE EASEMENTS CONVEYED TO KLRR4143EE OIL S GAS ONSHORE. LP DESCRIBED N INSTRUMENT RECORDED APRIL 21, 2011. AS RECEPTION NO. 376306D, ARE NOT MATHEMATICALLY OEF INED AND NO WIDTHS ARE STATED THEREFORE THEY ARE NOT SHOWN ON THIS MAP THEY ARE SAD TO AFFECT THE NE IN OF SECTION 32 AND THE SE 1N OF SECTION 29. EASEMENTS ARE FOR CONSTRUCTING. USING a MAINTAINING ROADS. LOCATIONS FOR SURFACE EOUTPME NT 1 SUBSURFACE GATHERING USES FOR EACH DRILLED WELL, PIPELNES, AND PIPELINE INTERCONNECTIONS (EXCEPTION 37) 50 PETROLEUM PIPELINE EASEMENT KN GAS GATHERING, INC RFC 1660004 (FACEEXCEPTION 291.4.1182-3) POSSIBLE EASEMENT 50 Pt TROLEUM PIPL LINE LASEMENT PANHANDLE EASTERN PIPELINE CO REC 1623666 (EXCEPTIONS 11A, 53 74) PUBLIC SERVICE CO. COLO MFNT REC. 2467903 (EXCEPTION 2614, 76 1.4) I I I C C • C 10 ELECTRIC EASEMENT UNION RURAL ELECTRIC ASSN REC 1700716 (EXCEPTIONS 25 t4, 73 14) - C C IAASL0 WIRE FENCE - - - - EL fttive-w- • • WELD COUNTY ROAD 17 RAW BARBED WIRE FENCE NOTE 1. TWP PA•1 WATER PIPELINE LOCATION SHOWN ON DRAWINGS IS APPROXIMATE AND SUBJECT TO FINAL DESIGN. 0 � f I �` 1 /i /�� T I� 16' CAP TT RAN Sn C APPROXIMATE POSITION CENTERLINE PETROLEUM PIPELINE ESMT KN WATTENSURG TRANSMISSION CO. REC. 2639336 (NO WIDTH STATED) Or LNE) (EXCEPTIONS 29 1.7. 77 1-4) C EA APPROX POSITION CENTERLINE PETROLEUM PIPELINE ESMTI ASSOCIATED NATURAL GAS. INC. REC 2233779 (SKETCH, NO WIDTH STATED) (EXCEPTIONS 2614.2414) Ft Fr IL'FAVMFNT C UNION RURAL LLECERIC ASSN REC 1100716 (EXCEPTIONS 76 14, 731-4) Tv 4* \- W. LINE MINN. NW1M. SEC 33 PN: 146933200036 LOT B RECORDED EXEMPTION 1469-33-2-RECX 13-0005 NEC 1914 TST NW1/4, NW 1/4 SEC. 33 Pow C C —EL —r} • • ■ II --CIF k/W *GAS PIPELINE EASEMENT NORTHERN GAS PRODUCTS CO REC. 1673676 (EXCEPTION 12 1.11) THIS USR MAP REPLACES PERMIT MAP 4 INCLUDED IN THE THORNTON WATER PROJECT WELD COUNTY USE BY SPECIAL REVIEW FOR PIPELINES PERMIT APPLICATION 1 DATED DECEMBER 21, 2018. GRAVEL ROAD PM - C APPROX SCALED POSITION CENTERLINE PETROLEUM PIPELINE EASEMENT KN WATT(NBURO TRANSMISSION CO REC. 2636340 (NO MATH, NO WIDTH STATED) (12' LINE) (EXCEPTION 6 1•11) APPROX POSITION CENTERL NE PETROLEUM PIPELINE ESMT ASSOCIATED NATURAL GAS. INC REC 2233791 (SKETCH NO WIDTH STATED) (EXCEPTIONS 6 14, 4 1-11) FLOODPLAN. tYP SO' GAS PIPELINE EASEMENT NORTHERN GAS PRODUCTS CO REC. 1673125 (EXCEPTION 171-11) 50 PETROLEUM PIPELINE EASEMENT PANHANDLE EASTERN PIPE LINE CO REC. 1626746 (EXCEPTION S 14 31-n) 50' PETROLEUM PIPELINE EASEMENT KN GAS GATHERING. INC REC. 2660003 (EXCEPTION 6 14, 3 1.11) SD PETROLEUM PIPELINE EASEMENT PUBLIC SERVICE CO OF COLO NEC 24364110 (EXCEPTION 7 14. 11 1.11) II I 1 TI I I II I I I I I I I I I I I I I I I I I I 1 II 1 I I I I I II I I II I II I I I I I Ii I I I I at 8 O 60 ROA. FXST 60' RON EXST 60 ROW FUTURE 16'HX 20"r. CAP t &'H X 201N CMP 3-16'H X 30'W OAP C - C VS PUBLIC Forma o CO 1146920000031 60 VE 41 III I i 10 ROM FUTURE Q a O MATCHLIN Z CC O 0 CC 111 CC D L1J O )- Cl) O U 6 th W 0 O z a t G 8 I sr W IX VI. RIFY SCAIL GM 41001 t (I$4UM41 nu*+.. Y DATE APRIL 101' PROJ 410966 DWG PAT -04 SHEET SAW SRYURL $PWPATH FILENAME: wcPrmO0441. PLOT DATE 201914106 PLOT TIME 31536 PM A1-27 4 MATCHLINE, PN 146929000045 2-2 PROPOSED LEACH FIELD (EXCAVATED) IwP PA -I 40 TEMPORARY CONSTRUCTION EASEMENT C 2 PN: 1469.29000046 12-4, C - PROPOSED m `POSSIBLE POSITION CENIERI INF 317 PEINOLEUN PIPELINE ESMT BASIN E XPI ORATION. INC REC. 730932) (EASEMENT NOTE 3) (NOTE 21.2) TWP PA -1 50' PERMANENT EASEMENT I5'11 X 70'00 CMP r RAN GATE BARBED WIRE FENCE 60' ROAD EASEMENT WELD COUNTY BK 661, PG 132 (EXCEPTION 25 2-3) / RAN ( ) • (.? a SE1/4 SEC. 29 T -1-N, R -67-W • ///--- BARBED WIRE PENCE D C W. LINE SWIM. SEC 26 Am ----- Am / / FLOOOPLAIN• TYP (2-3 PN: 146928200002 LOT B RECORDED EXEMPTION 14 69-28-2-R E C X 13-004 6 HTC 4036/74 EXCEPT SUBDIVISION EXEMPTION 1469-28-2 SUBX15-0030 REC 4176769 SW1/4 SEC. 28 T -1-N, R -67-W >•H 4 PN: 146929000045 !2-2! C C - - -EL • • • 1 EASEMENT NOTES - PARCEL 2.2 6 1 THOSE EASEMENTS CONVEYED TO KERR-MCGEE OIL 6 GAS ONSHORE. LP DESCRIBED IN INSTRUMENT RECORDED APRIL 21. 2011 AS RECEPTION NO 3763969. ARE NOT MATHEMATICALLY DEFINED AND NO WIDTHS ARE STATED THEREFORE THEY ARE NOT SHOWN ON THIS AMP THEY ARE SAID TO AFFECT THE SEIM Of SECTION 29 AND TINE NE 1N Of SECTION 32 EASEMENTS ARE FOR CONSTRUCTING. USING 6 AWN rAINING ROADS. LOCATIONS FOR SURFACE EQUIPMENT 6 SUBSURFACE GATHERING LINES FOR EACH DRILLED WELT. PIPELINES. AND PIPELINE INTERCONNECTIONS (EXCEPTION 60) EL - -- M' or —8(Yf OE - 1 WELD COUNTY ROAD 17 6C ROW. EAST AND FUTURE �- FUN./ - Ft/W EASEMENT NOTES- PARCEL 2-3 C C - - EL - - TWP PA 1 40 TEMPORARY CONSTRUCTION EASEMENT TWP PA.1 50' PERMANENT EASEMENT- - EL RAY - C -- IY • Q a F(LYL _ UN —1 Clu w - to ui 2 J 2 I- R7W IHAT PE ROE Cult PIPELINE EASEMENT GRANTED TO PANH4AMX I EASTERN PIPE L NNE CO AS DESCRIBED N INSTRUMENT RECORDED OC TUBER 26. 1973 AS RECEP?TON NO 1623665IS SHOWN ON A P0044 SKETCH INCLUDED IN EXHIBIT' A. 1T APPEARS THE EASEMENT DOES NOT RUN ALONG THE WEST SIDE OF SECTION 26 OR THE EAST SIDE OF THE SCIN OF SECTION 29 AND DOES NOIAFFECT THE TWP WATERLINE ALIGNMENT IN TIER 2. HOWEVER ACCORDING IO RECEPTION NO. 2660004. THE EASEMENT ALSO AFFECTS THE NEVI OF SECTION 32. LIKELY BASED IN THE SKETCH AND AFFECTS THE TIER 1 TWP WATER LINE ALIGNMENT. (EXCEPTIONS 119 53) 2. THAT PETROLEUM PIPELINE EASEMENT GRANTED TO KN GAS GATHERING, INC. RECORDED DECEMBER 11, 1996. AS RECEPTION NO. 2660004 LS A SUPPLEMENT TO REC. 1623665 AND ENCUMBERS EXISTING EASEMENTS WITH AN ADDITIONAL LINE IT PURPORTS TO INCLUDE THE NET/4 OF SECTION 32 (EXCEPTION 110) 3. THAT 50 PETROLEUM PIPELINE EASEMENT GRANTED TO PANHANDLE EASTERN PIPE LINE CO. AS DESCRIBED N W5IRUMENT RECORDED JUNE 20. 1963. AS RECEPTION NO. 1930797 IS NOT MATHEMATCALLY DEFINED AND THEREFORE IT IS NOT SHOWN ON THIS MAP IT m SID TO AFFECT THE NWIII Of SECTION 26 AND IS FOR LINE 14 1607511033' TR 1 (EXCEPTION 40) 4 THOSE EASEMENTS CONVEYED TO KERR-MCGEE OIL 6 GAS ONSHORE, LP DESCRIBED IN INSTRUMENT RECORDED DECEMBER 6, 7012. AS RECEPTION NO 3694131, AND IN INSTRUMENT RECORDED MAY 7. 2014. AS RECEPTION NO 4013635. ARE NOT MATHEMATICALLY DEFINED ANON° WIDTHS ARE STATED THEREFORE THEY ARE NOT SHOWN ON THIS MAP TREY ARE SAID TO AFFECT TIE 711/2 OF THE SWIM OF SECTION 26. EASEMENTS ARE FOR CONSTRUCTING USING 6 MAINTAINING ROADS. LOCATIONS FOR SURFACE EQUIPMENT & SUBSURFACE LATHERING LIMES FOR EACH (STALED WELL PIPELINES AND APE NNE NTERCONNECTIONS (EXCEPTIONS 69. 73) 5 THOSE EASEMENTS CONVEYED TO KERR-MCGEE OIL 6 GAS ONSHORE LP DESCRIBED IN INSTRUMENT RECORDED SEPTEMBER 6.2011 AS RECEPTION 453 3791060 ARE NOT MA INEMATICALLY DEI WED AND NO WIDTHS ARE STATED THEREFORE THEY ARE NOT SHOWN ON THIS MAP. THEY ARE SAN) TO AFFECT THE Nt/2 AND THE SW IN CO SECTION 76 EASEMENTS ARE FOR CONSTRUCTING. USING 6 MAINTANNG ROADS LOCATIONS FOR SURFACE EQUIPMENT & SUBSURFACE GATHERING LINES FOR EACH DRILLED WELL. PIPELINES. AND PIPELINE INTERCONNECTIONS . (EXCEPTION 70) THIS USR MAP REPLACES PERMIT MAP 5 INCLUDED IN THE THORNTON WATER PROJECT WELD COUNTY USE BY SPECIAL REVIEW FOR PIPELINES PERMIT APPLICATION 1 DATED DECEMBER 21, 2018. NOTE 1• TWP PA -1 WATER PIPELINE LOCATION SHOWN ON DRAWIN IS APPROXIMATE AND SUBJECT TO FINAL DESIGN. 100 150 Sale I6 NW m 1 w 5 3 0 z 0 le4 to IX Dw a VE Rif SCALE .4I 4 OM .K1I (F PA4M1 t*MWK. 4� • DATE APRIL 2019 PROJ 416966 OWG PA1.05 SHEET '0 of 61 SPWURL SPWPATH FILENAME WCPWVSCSA00 PLOT DATE 2011NMX)6 PLOT TIME 3 16 48 PM A1-28 A 0 C 0 2 3 4 1 5 6 TI LOT B RECORDED EXEMPTION 1311 08-4-RECX12-0025 REC. 3690521 REC 423]641 PN: 1371O8700008 11-12 EASEMENT NOTES -PARCEL II -I2 1 THAT 5P PETROLEUM PIPELINE EASEMENT GRANTED TO PANHANDLE EASTERN PIPE LINE CO. IBV L WOLIEF)AS DESCRIBED IN INSTRUMENT RECORDED OCTOBER I6. 1975. AS RECEPTION NO 1672396 IS NO1 MATHEMATICALLY DEFINED AM) THEREFORE IT IS NOT SHOWN ON THIS MAP IT IS SAID TO AFFECT THE SEIM OF SECTION 6 AND IS FOR LINE 16.10.0754174' TR 3 (EXCEPTION 51 2 THAT 50 PETROLEUM PIPELINE EASEMENT GRANTED TO PANHANDLE EASTERN PIPE LINE CO. (BY ROBBI S) AS DESCRIBED IN INSTRUMENT RECORDED OCTOBER 23. 1975. AS RECEPTION NO 1672964 IS ROT MATHEMATICALLY DEFINED AND THEREFORE IT IS NOT S//OWN ON THIS MAP. IT IS SAID TO AFFECT THE SEI/4 OF SECTION 6 AND IS FOR LINE 16.1Pp7341T-C TR3 (EXCEPTIONS) 3 THAT SO' PETROLEUM PIPELINE EASEMENT GRANTED TO PANHANDLE EASTERN PIPE LINE CO. (BV PER) AS DESCRIBED IN INSTRUMENT RECORDED OCTOBER 23, 1075. AS RECEPTION NO 1672965 IS NOT MATHEMATICALLY DEFINED AND THEREFORE II 15 NOT SHOWN ON THIS IMP. IT HS SAID TO AFFECT THE SL1/4 OF SECTION 6 AND IS FOR LINE 16 10075.2174'. TR 3 'EXCEPTION 71 APPROXIMATE POSITION DITCH USE EASEMENT JEFFERY W. RICHARDSON I RASHELLE H RICHARDSON REC 2763966 (EXCEPTION 16 11.141 -. • • stRAN W 1N COT- SEC. 9 FOUND 2-1/2* STEEL PIPE W7 3.1/1' BRASS CAP WD 'BUREAU OF LAND MANAGEMENT 1952. 1.5' BELOW GRAVEL SURFACE 'VW - - 1V1A• SW EL EL C —c c C EASEMENT NOTES- PARCELS 114 114 THAT WARRANTY DEED RECORDED JANUARY 10, 1910 IN BOOK 509. AT PAGE 115 RESERVES RIGHTS -OF -WAY FOR THE LUPTON BOTTOM DITCH. COAL RIDGE DITCH ELLWOOD DITCH. OR ANY LATERAL THEREOF. ACROSS THE 6172 OF SECTOR 9. THE DITCHES ARE NOT MATHEMATICALLY DEFINED AND ARE NOT SHOWN ON THIS MAP SEE MAP FOR POSITION Of THE COAL RIDGE DITCH (EXCEPTION 10) 11-5 PN: 131109000004 REC. 3443510 LOT A RECORDED EXEMPTION 1311 -09 -3 -RE 2696 REC. 2766115 A C SECTION LINE AND PROPERTY LINE COINCIDE C C EL W RAN NE1/4 SEC. 8 INO MAPPING COMPLETED' LOT B RECORDED EXEMPTION 1311 -081 -RE 3300 'TLC 2979461 REC 2665972 C PN: 131108100057 (11-14! EL W APPROXIMATE POSITION DITCH USE EASEMENT JEFFERY W RICHARDSON6 RASHELLE II. RICHARDSON REC. 2753966IO ((EXCEPTION 15 11.14) C C C C C C C C EL EL EL RAY RIW Art ROW. EXST AND FUTURE W 041 W W RAN RAN WELD COUNTY ROAD 17 RAN 1 EL ••••----EL- 0-- C 11-7 i RAN PN: 131109000004 REC 3443514 LOT C RECORDED EXEMPTION 1311 -09 -2 -RE 2687 RFC 2700029 (PD NOT tREPORT)CN TITLE / NM TWP PA -I 50' PERMANENT EASEMENT TWP PA -1 40' TEMPORARY CONSTRUCTION EASEMENT 6 RAN P RAN N W. LINEIN SEC 9 P CAIW SOOT, 1R>C ;eio.peY 1C.'1'1) DITCH EASEMENT TRACT -A- NORTHERN COLO WATER CONSERVANCY DIST. BOCK 1445 PO. 80 'REC. 1225691) EXCEPTION 12 11-11) PN: 131109000003 REC 3658704 LOT C RECORDED EXEMPTION 1311 -09 -2 -RE 2687 REC. 2769029 THIS USR MAP REPLACES PERMIT MAP 42 INCLUDED IN THE THORNTON WATER PROJECT WELD COUNTY USE BY SPECIAL REVIEW FOR PIPELINES PERMIT APPLICATION 1 DATED DECEMBER 21, 2018. M EL---- V cri 3 0 w W W 1= U I -- a P NW1/4 SEC. 9 az 0 60 100 150 Scab in FIN NOTE t TWP PA -1 WATER PIPELINE LOCATION SHOWN ON DRAWINGS IS APPROXIMATE AND SUBJECT TO FINAL DESIGN Z O U..L Q0 °M Z i i a 9 yN a n S 6t t ii u- 16 I x cox D W 0 - VERIFY SCALE OM i 01• I CH Ow ONAW•03, DATE APRIL 2019 PROJ 476966 DWG PA142 SHEET 470461 SPWPATH FILENAME: WCPrMN2dpn PLOT DATE 2019'04106 PLOT TIME 3.1748 PM A1-29 g 6 1<� B I t 1 2 I 1 1 ' I 5 1 S EASEMENT NOTES -PARCEL 11-14 1. THOSE EASEMENTS CONVEYED TONS RESOURCES. INC. AS DESCRIBED IN INSTRUMENT RECORDED DECEMBER 16, 2000, AS RECEPTION NO 2613715. ARE NOT MATHEMATICALLY DEFINED AND NO WIDTHS ARE STATED. THEREFORE THEY ARE NOT SHOWN ON THIS MAP EIN1 THEY ARE TO AFFECT THEOSECTION S EASEMENTS ARE FOR CONSTRUCTING. N E 1 /4 USING & MAITAINING ACCESS NROADS. LOCATIONS FOR SURFACE EOTT £UB UIPMENSUBSURFACE GATHERING NLIN)ES FOR EACH DRILLED WELL PWELNES. AND PIPELINE INTERCONNECTIONS. SEC. 8 (EXCEPTION 7. THOSE EASEMENTS CONVEYED TO KERR *GEE OIL S GAS ONSHORE LP AS DESCRIBED IN INSTRUMENT RECORDED AAY 22.201), AS RECEPTION NO 3949369. ARE NOT ISSUED FOR PERMIT NOT FOR CONSTRUCTION LI Ery V t: ° 4 M !' A (NO MAPPING COMPLETED) MATHEMATICALLY DEFINED N40 NO WIDTHS ARE STATED. THEREFORE THEY ARE NOT ASEMENTS LOT B ARE I OR CONSTRUCTING, USING MAINTAINING ACCESS ROADS. LTHIS MAP. THEY ARE SAID TO AFFECT THE NEIN 01 COCATIONBT ION It S I OR SUM ACE j O�j RECORDED EXEMPTION EQUIPMENT IL MASLIR,ACE GATHERING LINES F OR EACH DRILLED WELL, PIPELINES AND PIPELINE INTERCONNECTIONS. (EXCEPTION 23) 1311 -08 -1 -RE 3330 b REG 2979161 PN:131108100057 4R il11-14 - APPROXIMATE POSITION DITCH USE EASEMENT 1EFFERY W RICHARDSON a RASHELLE H RICHARDSON NEC. 27639668 (EXCEPTION 1611.14)- 78 ii 11 P _ --— - d - �—li 9 APPROXMATE PO TIOND qT TWP PA -I FILER CW RRIIC A CONSTRUCTION uEH N C•t763666 EASEMENT (EXCEP ' ll I%.14) OD NOT RESEARCH TITLE REPORT) LOT A RECORDED EXEMPTION 1311 -08 -1 -RE 3330 r. d IDIDINOT RESEARCH TITLE REPORT) LOT A CORRECTED RECORDED EXEMPTION g CV C cC c c c C i TWP PA -1 G. NEC 2979461 0. 1311 -08 -1 -RE 1682 _1 I d I EL ei i 50PLHMANENT i EASEMENT EL EL EL •— NEC. 3063602I PN: 131108100056 a. NEC 2�797I7 REC 2+� a s it 1 PN: 11-16 131108000052 la w w w w w I. 11-18 4 - ii 1 ' d RAM - - - NAN - RAY RAN - RAY RAY R/W RIW - - R/W - RAYwok- !s wn. [RAY 1) 0• WELD COUNTY ROAD 17 a 6 t. z` {\ w1 NE. NWV° SE III O i g Ili 71 RAY - - RAM RAN R� RAY RAY RAY $ rii I T Fu ��"• WW RAM RAM IN LU [[[111 IIIPPP` 1! � ANDTIME w w r w w w w w w w EL — -! �El EL EL El l EI. — — — EATM I 6P PERMANENT11-9 Co # 2 t 11a I li Pi EASEMENTc C i PN: 131109000002 C C C C C C C. C CC \- TWP PA.' 4C T KT TEMPORARY REC 2612(X19 REC. 2680042 LOT B RECORDED EXEMPTION 1311 -09 -2 -RE 2687 RIC 2799029 CONSTRUCTION EASEMENT I D I (010NOT 41r F� REPORT 1 a 11-11 _ r3 D a i NO COMPL D I EL / PN: 131109000003 REC. 3656/14 LOT C RECORDED EXEMPTION EASEMENT NOTES • PARCEL 11.11 1311 -09 -2 -RE 2687 1. THAT WARRANTY DEED RECORDED MAY 21, 1919, IN NOOK SCR AT PAGE 206, RESERVES RIGHTS -OF -WAY FOR THE COAL RIDGE REC. 2169029 DITCH AND ANY LATERAL THEREOF. UP TO A 13 ACRE RESERVOIR. IMO MAPPING COMPLETED) ANDA DITCH FROM THE RESERVOIR TO OTHER LANDS. ALL ACROSS THE 9412 of SECTION 0 THE DITCHES AND RESERVOIR ARE NOT MATHEMATICALLY DEFINED AND ARE NOT SHOWN ON THIS MAP. SEE N W 1 !4 MAP FOR POSITION OF THE COAL RIDGE DITCH, (EXCEPTION 10) SEC. 9 Sr/ 100 USRXX-XXX) PERMIT MAP 4 0 50 150 imi THIS USR MAP REPLACES PERMIT MAP 43 INCLUDED IN THE Scalein For VERIFY SCALE THORNTON WATER PROJECT WELD COUNTY USE BY SPECIAL NOTE MAIIor wd �I• REVIEW FOR PIPELINES PERMIT APPLICATION 1 DATED 1. TWP PA -1 WATER PIPELINE LOCATION SHOWN ON DRAWINGS IS APPROXIMATE AND SUBJECT TO FINAL DESIGN. DATE APRIL ?Dt9 DECEMBER 21, 2018. PRO! 476966 DWG PA1.13 N 0161 SPWURL SPWPATHSHEET FILENAME WCPwnYN3.O9n PLOT DATE 70f9V]41D6 PLOT T9AE 3 16 47 PM A1-30 THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 Section 12 Traffic Study Supplement This section supplements information provided in Application Section 12, Traffic Study as noted. Supplement 1 Information provided in this subsection supplements information in the Application, Section 12 Traffic Study, General Transportation Information as noted. General Transportation Information Table A1-C.2.c-7.1 supplements Table C.2.c-7.1 in the Application: TABLE A1-C.2.c-7.1 Roadway Classifications and AADT Roadway Limits Classification AADT Impact County Road 17 130 feet north of County Road 4 to 515 feet north of County Road 4 Gravel, Local Service 0-200 TWP PA -1 proposed in ROW for 385 feet Supplement 2 Information provided in this subsection supplements information in the Application, Section 12 Traffic Study, Other Considerations, Construction in right-of-way (ROW), Preferred Route in Weld County ROW as noted. Other Considerations Construction in ROW Preferred Route in Weld County ROW Supplement subsection as follows: Location 4 Thornton submitted its Application on December 21, 2018. After that submission, Thornton was contacted by the Weld County Department of Planning Services Director to discuss the TWP PA -1 route located within the Dry Creek RUA. Weld County recommended that the TWP PA -1 route be relocated outside of the RUA. In response to that recommendation, Thornton has changed approximately 1,030 feet of the TWP PA -1 alignment to be located outside of the Dry Creek RUA. Figure A1-C.2.c-7.7a shows the relocation of the water pipeline outside the Dry Creek RUA. A home and septic system, a gas pipeline, and wetlands along the west side of County Road 17 and the Dry Creek RUA on the east side of County Road 17 north of County Road 4 significantly restricts available space outside Weld County ROW. To limit disturbance to a home and septic system, Thornton requests approval to locate the water pipeline and fiber optic cable in Weld County ROW for approximately 385 feet of County Road 17 from just north of County Road 4 as shown in Figure A1-C.2.c-7.7a. Unless required otherwise by Weld County, the water pipeline and the appurtenant buried fiber optic cable will be constructed using open -cut construction. TWP USR PA -1 ADDENDUM 1 Ai i 1 THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 •'} � My' il. �J '^ ® A w • Ar"..6 �i].�:ri�'a..... FIGURE A1-C.2.C-7.7a TWP PA -1 Proposed Location 4 in Weld County ROW Thornton understands that, if the TWP PA -1 crosses Weld County ROW or is located parallel to and within the Weld County ROW, then use of that ROW will require Weld County approval. Section C Summary Statement Supplement Supplement 1 This section supplements information provided in the Application, Section C Summary Statement, C.2, C.2.b. Preferred Route Description, Preferred Route in Weld County ROW as noted. C.2. A detailed report shall be submitted which includes information on the following Items: C.2.b. A description of the preferred route or location of the PIPELINE — DOMESTIC WATER and reasons for its selection. Preferred Route Description Preferred Route in Weld County ROW Supplement subsection as follows: Location 4 Thornton submitted its Application on December 21, 2018. After that submission, Thornton was contacted by the Weld County Department of Planning Services Director to discuss the TWP PA -1 route located within the Dry Creek RUA. Weld County recommended that the TWP PA -1 route be TWP USR PA -1 ADDENDUM 1 ;) THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 relocated outside of the RUA. In response to that recommendation, Thornton has changed approximately 1,030 feet of the TWP PA -1 alignment to be located outside of the Dry Creek RUA. Figure A1-C.2.b.6 shows the relocation of the water pipeline outside the Dry Creek RUA. A home and septic system, a gas pipeline, and wetlands along the west side of County Road 17 and the Dry Creek RUA on the east side of County Road 17 north of County Road 4 significantly restricts available space outside Weld County ROW. To limit disturbance to a home and septic system, Thornton requests approval to locate the water pipeline and fiber optic cable in Weld County ROW for approximately 385 feet of County Road 17 from just north of County Road 4as shown in Figure A1-C.2.b.6. Unless required otherwise by Weld County, the water pipeline and the appurtenant buried fiber optic cable will be constructed using open -cut construction. Dry Creek RUA A ' proximatelys,385 feed: proposed in We`Id County R0)111 FIGURE A1-C.2.b.6 TWP PA -1 Proposed Location 4 in Weld County ROW Thornton understands that, if the TWP PA -1 crosses Weld County ROW or is located parallel to and within the Weld County ROW, then use of that ROW will require Weld County approval. TWP USR PA -1 ADDENDUM 1 Al -ii THORNTON WATER PROJECT WELD COUNTY USR PERMIT APPLICATION 1 ADDENDUM 1 Replacement 1 This section replaces information provided in Application Section C, Summary Statement, C.2, C.2.i as noted. C.2. A detailed report shall be submitted which includes information on the following Items: C.2.i. A discussion of how the proposal conforms with the guidelines of Chapter 22 of this code and any other applicable code provision or ordinance in effect. Goals and Policies RUA.Goal 2. The County, property owners, municipalities and other jurisdictions should coordinate urban land use planning within the Regional Urbanization Areas, concerning but not limited to development policies and standards, zoning, street and highway construction, open space and trails, public infrastructure and other matters associated with urban development. Replace subsection as follows: The TWP PA -1 is located outside of any RUA. RUA. Goal 3. Development within Regional Urbanization Areas should occur in a manner that results in an attractive and functional working and living environment. Replace subsection as follows: The TWP PA -1 is located outside of any RUA. TWP USR PA -1 ADDENDUM 1 A1-34 Hello