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Home My WebLink About20071140.tiff This pare was updated in conjunction with the USR Application. June 23, 2005 EXHIBIT G Water Information General Mining at the Riverbend Pit will intercept shallow groundwater, which lies from three to six feet below the current ground level. Deeper bedrock aquifers that underlie the site will be unaffected by the mining operation because of the shallow depth of excavations. A Groundwater Monitoring Program is enclosed as a guideline for monitoring and mitigation measures. Upon completion of mining, eight ponds will remain unsealed for recreational purposes, one pond will remain unsealed for augmentation recharge, three ponds will be sealed for water storage, and seven ponds will be filled with silt and reclaimed to wetlands or uplands. The open water ponds will cover an area of approximately 320 acres. The sealed ponds will cover an area of approximately 105 acres. Local surface water ponds, ditches, water courses, and tributaries are shown on the pre- mining map. The nearest water course is the South Platte River. No impact to the South Platte River is expected as a result of mining. Potential Water Resource Impacts The Riverbend Pit sand and gravel operation will have minimal impacts on the water resources in the area. There are 13 wells located within 600 feet of the proposed Riverbend Pit, however only two can potentially be impacted. The remaining 11 are either controlled by Lafarge or located on the other side of the South Platte River. Copies of the original Riverbend Gravel Well Permit Application and Substitute Water Supply Plan are enclosed; amendments to both documents to include additional acreage are currently under draft. Discharge Permits The proposed mine will be dewatered and operated as a dry mine. Alluvial groundwater from pit dewatering will be discharged into the South Platte River, in accordance with CDPS permit conditions. The estimated discharge rate during dewatering will range between 800 gallons/minute(gpm) and 5500 gpm, varying according to season and production rates. The applicant has an active certification authorization to discharge under the CDPS Industrial General Permit, number COG-500416, for the original 237 acres. The CDPS permit will be renewed and amended to include the entire 1,368 acres upon its expiration on September 30, 2007. Please see enclosed CDPS permit. Surface Water Management Please see the enclosed Stormwater Management Plan. Consumptive Water Use Ft Lupton Pit DUG 112 Permit /'age 26 o[86 2007-1140 The total annual operational losses, due to the mining operation at the Riverbend Pit, are projected over the life of mining according to the enclosed Water Balance spreadsheet prepared by AMEC. Ft Lupton Pit DMG 112 Permit Page 27 of 86 Groundwater Monitoring Program Ft Lupton Pit DMG 112 Permit Page 26 of 81 LAFARG E NORTH AMERICA Construction Materials RIVERBEND M-2000-016 GROUNDWATER MONITORING PROGRAM NOVEMBER 2004 LAFARGE NORTH AMERICA INC. —Lafarge Construction Materials 10170 Church Ranch Way, Suite 200,Westminster Colorado 80221 Telephone:(303)657-4000 Facsimile: (303)657-4037 LAFARGE NORTH AMERICA Construction Materials CONTENTS 1 INTRODUCTION 1.1 Scope and Purpose 1.2 Project Location and Description 1.3 Information Goals 2 SUMMARY OF CURRENT RESULTS 2.1 Measurement and Data Handling 2.2 Data Analysis and Interpretation 3 MITIGATION 3.1 Trigger Points 3.2 Proposed Mitigation Measures 4 GRAPHICAL REPRESENTATION OF DATA 4.1 Explanation of Graphs FIGURES Figure 1 — Vicinity Map Figure 2—Monitoring Well Locations APPENDICES A Well Logs B Groundwater Elevation Graphs LAFARGE NORTH AMERICA INC. -Lafarge Construction Materials 10170 Church Ranch Way,Suite 200,Westminster Colorado 80221 Telephone- (303)657-4000 Facsimile_(303)657-4037 LAFARGE NORTH AMERICA Construction Materials 1 INTRODUCTION 1.1 Scope and Purpose This report presents a proposed well monitoring program to be conducted by Lafarge West, Inc. (Lafarge) at the request of Colorado Division of Minerals and Geology(the Division). The monitoring program has been developed in response to concerns about groundwater levels relative to a proposed gravel mining operation at the Riverbend site; permit M-2000-016, located west of Highway 85,just south of Ft. Lupton, Colorado. The program seeks to establish baseline groundwater levels in the vicinity of the site prior to the start of dewatering activities associated with the proposed mining operation. This baseline will be compared to data collected during the life of the operation to determine if any significant changes to groundwater levels have occurred. The result of this analysis is compared to qualitative information goals to establish whether mitigation by Lafarge is necessary to offset negative impacts to neighbors due to mining activities. If mitigation is necessary Lafarge will use, at the direction of the Division, the most appropriate mitigation method or combination of methods to remedy the situation. 1.2 Project Location and Description The Riverbend site is a series of Lafarge-controlled properties located in portions of Sections 7, 18, and 19 of Range 66 West and Sections 12, 13, and 24 of Range 67 West of the 6th P.M., Weld County, Colorado. The 1,368-acre site is between WCR 6 and Highway 52, one-quarter mile west of Highway 85. Thirty(30) monitoring wells surrounding the Riverbend site at varying distances have been established for taking measurements associated with the monitoring program. These wells have either been modified for this use or driven specifically for this purpose, generally consisting of 2" PVC tube with a perforated end piece. Figure 2 is a map showing the location of these 30 wells. Measurements have been taken for groundwater elevation on a quarterly basis or more frequently. Baseline conditions are included in this report; future measurements will be reported to the Division in each annual report. Special reporting will occur in the event of a significant change, specifications regarding a significant change and resulting actions are detailed in Section 3. 1.3 Information Goals The primary goal of the monitoring program is to determine within a certain confidence level what the groundwater condition was before mining begins and what it is like after mining has commenced, and whether the difference is significant. This has two ramifications. The first is the ability of neighbors to legally use groundwater at the same rate as they had prior to the start LAFARGE NORTH AMERICA INC. -Lafarge Construction Materials 10170 Church Ranch Way, Suite 200,Westminster Colorado 50221 Telephone_(303)657-4000 Facsimile: (303)657-4037 LAFARGE • NORTH AMERICA Construction Materials of mining. The second is expressed by Division regulations requiring the operator to minimize "disturbances to the prevailing hydrologic balance of the affected land and of the surrounding area and to the quality and quantity of water in surface and groundwater systems,both during and after the mining operation and during reclamation." To determine whether either of these two conditions has been violated requires a combined effort of qualitative and quantitative approaches. A Gravel Well Permit and Temporary Substitute Water Supply Plan (TSWSP)have been submitted to the Colorado State Engineer at the Division of Water Resources for approval. Groundwater will not be exposed prior to TSWSP approval. A search of SEO files and a field inspection revealed 20 wells located within 600 feet of the property, only 6 with potential for impact. LAFARGE NORTH AMERICA INC_ —Lafarge Construction Materials 10170 Church Ranch Way,Suite 200,Westminster Colorado 80221 Telephone (303)657-4000 Facsimile:(303)657-4037 LAFARGE NORTH AMERICA Construction Materials 2 SUMMARY OF CURRENT RESULTS 2.1 Measurement and Data Handling Using the field data logs for each well,in addition to the specified standard procedures, groundwater elevation data has been collected between the dates of January 2002 and present. See included well log sheets in Appendix A. The current data set exceeds the Division recommended minimum of five quarters of monitoring, however baseline monitoring will continue on a quarterly basis until mining operations commence. 2.2 Data Analysis and Interpretation Data from the time period between January 2002 and start of dewatering will be the baseline pre- mining data points. DS03-MW03 was damaged by farm equipment and will be replaced as soon as possible; no data is available for DS03-MW03 past February 2004. Mining data points will be compared to these values to determine if mitigation efforts are necessary. The largest and the smallest data points for each well were first reviewed for accuracy. No outliers were identified; all recorded data fell within seasonal expectations. The tolerance limits, the smallest and largest values of the data, were then determined. The current upper and lower tolerance limit, highlighted in the well logs with green and yellow,respectively; and seasonal averages for each well is summarized in the table below: Tolerance Limit Average Groundwater Elevation Well Lower Upper Irrigating Season Non-irrigating DS03-MW01 4894.56 4898.45 4897.00 4894.80 DS03-MW02 4888.45 4905.16 4903.08 4894.92 DS03-MW03 4901.78 4905.69 4904.28 4901.78 DS03-MW04 4900.12 4904.04 4902.00 4900.70 DS03-MW05 4903.65 4907.11 4904.84 4903.69 DS03-MW06 - 4899.62 4900.95 4900.34 4900.22 DS03-MW07 4902.08 4906.06 4904.04 4903.45 DS03-MW0S _ 4903.57 4904.96 4904.60 4904.06 DS03-MW09 4906.51 4908.81 4908.95 4908.17 MF03-MW01 4902.92 4907.19 4905.31 4903.17 MF03-MW02 4902.80 4904.77 4904.09 4903.40 MY03-MW0I 4910.12 4914.32 4913.10 4910.60 C1103-MW01 4910.56 4912.60 4911.71 4911.00 C1403-MW02 4908.07 4909.07 4908.66 4908.17 LAFARGE NORTH AMERICA INC. -Lafarge Construction Materials 10170 Church Ranch Way.Suite 200,Westminster Colorado 80221 Telephone (303)657-4000 Facsimile (303)657-4037 1RLFAHGE NORTH AMERICA — Construction Materials CH03-MW03 4907.92 4908.84 4908.41 4908.34 CH03-MW04 4909.70 4913.08 4910.27 4910.96 CH NORTH 4911.98 4913.88 4912.907 4912.21 CH SOUTH 4912.31 4915.31 4914.00 4912.68 CH WEST 4912.87 4919.02 4917.96 4914.28 NO03-MW01 4920.05 4923.60 4922.12 4920.69 NO03-MW02 4919.51 4921.97 4920.78 4920.16 _ NO03-MW03 4919.31 4922.11 4920.44 4919.54 8101-MW01 4919.51 4925.15 4923.58 4923.43 8101-MW02 4923.01 4925.65 4924.52 4924.25 R103-MW03 4918.98 4922.54 4921.16 4921.66 RI03-MW04 4918.26 4920.07 4918.83 4919.21 R103-MW05 4912.25 4916.25 4915.39 4213.31 R103-MW06 4911.85 4913.23 4912.46 4912.09 R103-MW07 4916.07 4917.90 4916.45 4916.70 R103-MW08 4918.12 4920.48 4919.28 4918.55 The collected data will be analyzed against the baseline monthly to determine compliance, and then will be added to the baseline for the following month's analysis. LAFARGE NORTH AMERICA INC. - Lafarge Construction Materials 10170 Church Ranch Way,Suite 200.Westminster Colorado 80221 Telephone:(303)657-4000 Facsimile: (303)657-4037 JPFARGE • NORTH AMERICA Construction Materials 3 MITIGATION 3.1 Trigger Points The groundwater mitigation plan will be triggered when two consecutive monitoring events indicate that the groundwater level has dropped two (2)feet or more below the seasonal water level for that period,as determined by baseline monitoring data, or when any single monitoring event indicates that the groundwater level has dropped two (2)feet below the seasonal low, as determined by baseline monitoring data. If a trigger point occurs, an impartial groundwater expert will perform an analysis and submit a written report to the Division and potentially impacted parties within thirty(30) days. The analysis and report will determine the cause of the impact and the mitigation required. 3.2 Proposed Mitigation Measures One or more of the following mitigation measures will be used to alleviate off-site groundwater impacts. The exact measure or combination of measures will be determined by the Division, in consultation with the operator, potentially impacted parties, and the impartial expert. The operator shall pay the cost of mitigation. Mitigation measures will be implemented in the following order, as necessary, to alleviate impacts to off-site wells: • Delivering water by pumping and piping or by a drain system • Deepening of impacted off-site wells • Construction of new well or wells • Delivery of replacement water by: o Pumping dewatering water to the affected party(s) o Pumping from the on-site wells o Delivery from the Brighton Ditch shares controlled by the operator o Other sources as may be required The impartial analysis will continue until the cause can be determined or the relative impact of the mining operation can be calculated. When the Division agrees with the findings of the impartial analysis, the mitigation may be adjusted accordingly. LAFARGE NORTH AMERICA INC. —Lafarge Construction Materials 10170 Church Ranch Way, Suite 200,Westminster Colorado 80221 Telephone_(303)657-4000 Facsimile.- (303)657-4037 LAFARGE NORTH AMERICA Construction Materials 4 GRAPHICAL REPRESENTATION OF DATA Appendix B includes time-series graphs depicting the groundwater elevations. The graphs "R101-MW04—Irrigation Season" and "R101-MW04—Non-irrigation Season" illustrate typical seasonal fluctuations recorded at an individual well. Due to the number of wells, individual graphs were not included for each well; RI01-MW04 is presented as an arbitrary well. The "Average Groundwater Elevation" graphs illustrate the seasonal average groundwater for each well on the property. Although individual wells maintain consistent elevations, these graphs illustrate the variance amongst wells. LAFARGE NORTH AMERICA INC —Lafarge Construction Materials 10170 Church Ranch Way,Suite 200,Westminster Colorado 80221 Telephone.:(303)657-4000 Facsimile: (303)657-4037 LAFARGE NORTH AMERICA Construction Materials • FIGURES LAFARGE NORTH AMERICA INC. —Lafarge Construction Materials 10170 Church Ranch Way,Suite 200,Westminster Colorado 80221 Telephone:(303)657-4000 Facsimile: (303)657-4037 DS03- X101 / ISO -.,&VIP ' 1 // • c. PHASE10 \' ►' 1 PHASE I I\ 1 MAC BOUNDARY J PRDYBRTY BOUNDARY '- , O2..1 DIRT ROAD L I r I TREA ROA D STRIA! Dilk 1)6 ITCH I I PINING PIT 03-n1Wo•a. MW0S r' PHASE CE IA PHASB6 CELLI CELL il:, I 1�1'l3-MW01 1 P l3-. 1' PHASE CBCL4 02 CELLS P ':s ' 03-MW03 �.� ► PI CELL eta H03-MWI- South ell H West Well Imo" • PHA593 d C IL, 4 l U ' a nnr tv NO03- 2 OS / NO03-MW0I 02.'y PAWN NO03- v 1 c - R101-MW06 I' 1101-MW0R jt101 L \�RI01 MWO4 01-MW0 PHA4H I lI \ CELL • �,1-------. R101-MW02 -'1--1-1 '21011(701 LAPAR _, NORTH AMERICA 140D].MI.In Dow,can e>cm (IDS)e,-1000 PROW: RO RIVERBEND "MONITORING WELL LOCATIONS Mill et SKJ r] 11/01/04 1":1300' �A°D°QWAD....420\Ft. Lupton\dwq\hydro ",OF 1 }i1 t f t I ..., w cc C - � I 498; f • 1 ' , r 1 ` .al� (^--. 495/ • "�� `, 'mMEsrl -• i 1. t �r-'l.JL, Well I M :�• ' r 't_ r I1+ i Lone Pine i ; 4 t JL.\\ \ c...‘ �� `�, _q I ' 11 i "k; o_ y � O o o€ 1 \t 1 I, ',t • 7 , r i 1 7 7 ti` { L.. P _ 22,6 . _ • •l i :. 700 GPM //! rs p i ,• 'i • I J . .. iiii RRIGA710N / I • I; J 45 1 Z'm�c�aia I - y. I . Q II.AIkl3 - f // Gravel • ! =-._ Q I Pit iu.. ...vim . O i "O O 1� r 1 • ` _ fff `! 1. • ) 960 • . u 4, I w y •/ acP o j� ,x.94 $I • ,ilTIa, I I 160 • \ 1 3ikl, -- ' i O :006RM ,� • • / �8 ✓k -- / . Z ., -. ___.- - -. .. _ :Li° I�7 � •• �l ,� 315 3 RM 13 18X vkM.viM_. r 1V �.. f..=.__e ( :1. 00MFS C 600.. FROM CI°.LL �a,,a. ' ? +�„ O p . : m ' PERIMETER T iris-f, 94� ` 12258 J .. n �;�/ � � z aoo ePM gg F 32 F7 __ �� : A . ''.4., J28682ris ^'' , •_ 50°GP Iteart FT✓____ p i'Y •• ri GATT 1` ; _ � 7 . 1 1. �> M • "- .-�icaM ss� f J N I I �tt' IRRIGA N : . r"- -PERMIT I I z G(!9 r BOUNDARY —'i 6 •0 FT Well , /•'^.-^ _cY4945 _.' a ' 1 •IR , N IN USTR / • O f '4-. r . t 1 d * -• : IH _ fir • _ 1/4 1•013-14• Jet. 0646____..._ 1 -,:124 I0M1;3r^ 449944:`, 9 t Well -\•,:, , 47 I __ `'1 . O---..--J O.--___..q t ,0910..�_.. . _`.. •1 —V w..,__.r \c'l as Fl• 7...1:...••. l._�.. _ 16352• I&)N+ IPA _.. - g ' '. ' / i D■ n'd .. NORTH AMERICA i /� \ z --_._ 1400•.0445 k ra Donor.Cant 00221 pm)N7-0um asp! sso x --. __,_ }�:< ` `. RIVERBEND �'; ' ` :• • :� 4.5 492g m WELLS WITHIN 600 FT. T '- . : X "'' AMEC rot 11/02/04 1•:Xxx' I . 1 O-.._.._rY • { . '• ■ I 3 3 .n0nn0■ PATHNAME "It OF X • 1LILFARGE NORTH AMERICA Construction Materials APPENDIX A - WELL LOGS LAFARGE NORTH AMERICA INC. —Lafarge Construction Materials 10170 Church Ranch Way, Suite 200,Westminster Colorado 80221 Telephone:(303)657-4000 Facsimile:(303)657-4037 Monitoring Well Observations .—. DS03-MW01 DS03-MW02 Northing 1271846 Northing 1270289 Easting 3185862 Easting 3184556 Ground Elevation 4902.047 Ground Elevation 4908.886 PVC Elevation 4904.971 PVC Elevation 4911.386 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 9.90 6.98 4895.07 3/27/2003 22.94 20.44 4888.45 5/27/2003 8.80 5.88 4896.17 5/27/2003 10.90 8.40 4900.49 7/2/2003 6.52 3.60 7/2/2003 6.23 3.73 IIIIIMI 8/18/2003 7.47 4.55 4897.50 8/14/2003 6.28 3.78 4905.11 2/2/2004 10.19 7.27 4894.78 2/2/2004 11.52 9.02 4899.87 3/11/2004 10.41 7.49 4894.56 3/11/2004 14.93 12.43 4896.46 4/13/2004 8.85 5.93 4896.12 4/13/2004 10.98 8.48 4900.41 5/10/2004 8.22 5.30 4896.75 5/10/2004 7.16 4.66 4904.23 DS03-MWO5 DS03-MWO6 Northing Northing 1267774 _ Easting Easting 3189580 Ground Elevation 4905.1 Ground Elevation 4906.717 PVC Elevation 4908.4 PVC Elevation 4909.891 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 4.70 1.40 4903.70 3/27/2003 8.94 5.77 5/27/2003 4.70 1.40 4903.70 5/27/2003 9.75 6.58 4900.14 7/2/2003 1.29 -2.01 7/2/2003 9.26 6.09 4900.63 1/1/1900 4.69 1.39 4903.71 2/2/2004 10.27 7.10 4899.62 3/11/2004 4.75 1.45 4903.65 3/11/2004 9.80 6.63 4900.09 4/13/2004 4.69 1.39 4903.71_, 4/13/2004 9.36 6.19 4900.53 5/10/2004 No Access 5/10/2004 No Access DS03-MWO9 MF03-MW01 Northing 1265161 Northing 1267741 Easting 3187462 Easting 3184871 Ground Elevation 4912.319 Ground Elevation 4922.206 PVC Elevation 4915.832 .. PVC Elevation 4925.571 _ _- Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 6.40 2.89 3/27/2003 22.65 19.29 4902.92 5/27/2003 7.00 3.49 4908.83 5/27/2003 21.20 17.84 4904.37 7/2/2003 6.43 2.92 4909.40 7/2/2003 19.77 16.41 4905.80 8/18/2003 6.95 3.44 4908.88 8/14/2003 18.38 15.02 2/2/2004 8.70 5.19 4907.13 _ 2/2/2004 22.01 18.65 4903.56 3/11/2004 7.90 4.39 4907.93 3/11/2004 22.55 19.19 4903.02 4/13/2004 7.14 3.63 4908.69 4/13/2004 21.69 18.33 4903.88 __ 5/10/2004 No Access 5/10/2004 20.27 16.91 4905.30 Monitoring Well Observations DS03-MW03 DS03-MW04 Northing 1269033 Northing 1269069 Easting 3184523 Easting 3185754 Ground Elevation 4914.148 Ground Elevation 4911.368 PVC Elevation 4916.648 PVC Elevation 4914.494 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 14.87 12.37 4901.78 3/27/2003 13.78 10.65 4900.71 5/27/2003 14.75 12.25 4901.90 5/27/2003 13.40 10.27 4901.09 7/2/2003 11.40 8.90 4905.25 7/2/2003 10.89 7.76 4903.60 8/14/2003 10.96 8.46 8/14/2003 10.45 7.32 2/2/2004 ran over 2/2/2004 13.62 10.49 4900.87 3/11/2004 ran over 3/11/2004 13.98 10.85 4900.51 4/13/2004 ran over 4/13/2004 13.38 10.25 4901.11 5/10/2004 ran over 5/10/2004 14.37 11.24 4900.12 DS03-MW07 DS03-MW08 Northing 1265208 Northing 1266419 Easting 3188933 Easting 3188165 Ground Elevation 4912.168 Ground Elevation 4910.306 PVC Elevation 4916.66 PVC Elevation 4913.199 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 10.60 6.11 3/27/2003 8.42 5.53 4904.78 5/27/2003 11.50 7.01 4905.16 5/27/2003 8.80 5.91 4904.40 7/2/2003 10.73 6.24 4905.93 7/2/2003 8.24 5.35 8/18/2003 14.17 9.68 4902.49 2/2/2004 14.58 10.09 4902.08 2/2/2004 9.63 6.74 4903.57 3/11/2004 14.46 9.97 4902.20 3/11/2004 9.37 6.48 4903.83 4/13/2004 14.08 9.59 4902.58 4/13/2004 8.76 5.87 4904.44 5/10/2004 No Access 5/10/2004 No Access MF03-MW02 MY03-MWO1 Northing 1267738 Northing 1265122 Easting 3187113 Easting 3184933 Ground Elevation 4909.132 Ground Elevation 4923.025 PVC Elevation 4911.48 PVC Elevation 4926.32 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) _3/27/2003 7.55 5.20 4903.93 3/27/2003 14.97 11.67 4911.35 5/27/2003 7.85 5.50 4903.63 5/27/2003 13.55 10.25 4912.77 7/2/2003 6.71 4.36 7/2/2003 13.16 9.86 4913.16 8/18/2003 12.00 8.70 2/2/2004 8.00 5.65 4903.48 2/2/2004 16.00 12.70 4910.32 3/11/2004 8.68 6.33 4902.80 3/11/2004 16.20 12.90 4910.12 4/13/2004 7.70 5.35 4903.78 4/13/2004 14.60 11.30 4911.72 5/10/2004 7.32 4.97 4904.16 5/10/2004 12.80 9.50 4913.52 Monitoring Well Observations CH03-MWO1 CH03-MW02 Northing 1263838 Northing 1264281 Easting 3187006 Easting 3188427 Ground Elevation 4914.158 Ground Elevation 4912.861 PVC Elevation 4916.846 PVC Elevation 4916.072 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 5.00 2.31 4911.85 3/27/2003 7.80 4.59 4908.27 5/27/2003 5.60 2.91 4911.25 5/27/2003 7.45 4.24 4908.62 7/2/2003 4.25 1.56 7/2/2003 7.00 3.79 __8/14/2003 4.80 2.11 4912.05 8/14/2003 7.51 4.30 4908.56 2/2/2004 6.26 3.57 4910.59 2/2/2004 8.00 4.79 4908.07 3/11/2004 6.29 3.60 4910.56 3/11/2004 7.90 4.69 4908.17 4/13/2004 5.67 2.98 4911.18 4/13/2004 7.57 4.36 4908.50 5/10/2004 5.37 2.68 4911.48 5/10/2004 7.55 4.34 4908.52 CH North Well CH South Well Northing 1263141 Northing 1262731 _ Easting 3188168 Easting 3187863 _Ground Elevation 4918.09 Ground Elevation 4918.419 Elevation 4918.357 PVC _ _ PVC Elevation 4918.856 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 5.74 5.47 4912.62 3/27/2003 6.55 6.11 4912.31 5/27/2003 5.82 5.55 4912.54 5/27/2003 5.50 5.06 4913.36 7/2/2003 4.48 4.21 7/2/2003 3.55 3.11 . 8/14/2003 5.29 5.02 4913.07 8/18/2003 4.26 3.82 4914.60 2/2/2004 6.38 6.11 4911.98 2/2/2004 6.00 5.56 4912.86 3/11/2004 6.31 6.04 4912.05 3/11/2004 5.98 5.54 4912.88 4/13/2004 6.11 5.84 4912.25 4/13/2004 5.78 5.34 4913.08 5/10/2004 5.55 5.28 4912.81 5/10/2004 5.18 4.74 4913.68 NO03-MW01 NO03-MWO2 Northing 1258969 Northing 1258551 Easting 3185956 Easting 3186858 Ground Elevation 4923.94 Ground Elevation 4923.625 PVC Elevation 4926.971 PVC Elevation 4926.856 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Measured PVC Ground Elevation(ft) 3/27/2003 6.92 3.89 4920.05 3/27/2003 5.50 2.27 4921.36 5/27/2003 5.15 2.12 4921.82 5/27/2003 6.75 3.52 4920.11 7/2/2003 4.59 1.56 _ 4922.38 7/2/2003 4.89 1.66 8/12/2003 3.37 0.34 ' 8/12/2003 5.20 1.97 4921.66 2/2/2004 5.86 2.83 4921.11 2/2/2004 7.25 4.02 4919.61 3/11/2004 6.05 3.02 4920.92 3/11/2004 7.35 4.12 4919.51 4/29/2004 5.59 2.56 4921.38 4/29/2004 6.83 3.60 4920.03 5/10/2004 5.57 2.54 4921.40 5/10/2004 6.73 3.50 4920.13 Monitoring Well Observations CH03-MW03 CH03-MW04 Northing 1264061 Northing 1263036 Easting 3189706 Easting 3189406 Ground Elevation 4910.902 Ground Elevation 4915.494 PVC Elevation 4913.456 PVC Elevation 4918.178 Date Depth to Water(ft) Groundwater Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft Measured PVC Ground Elevation(ft) 3/27/2003 4.62 2.07 3/27/2003 5.10 2.42 5/27/2003 4.97 2.42 4908.49 5/27/2003 7.90 5.22 4910.28 7/2/2003 4.81 2.26 4908.65 7/2/2003 7.62 4.94 4910.56 8/14/2003 5.29 2.74 4908.17 8/14/2003 8.10 5.42 4910.08 2/2/2004 5.54 2.99 4907.92 2/2/2004 8.48 5.80 4909.70 3/11/2004 5.18 2.63 4908.28 3/11/2004 8.08 5.40 4910.10 4/13/2004 4.77 2.22 4908.69 4/13/2004 7.70 5.02 4910.48 5/10/2004 5.41 2.86 4908.05 5/10/2004 8.21 5.53 4909.97 CH West Well Northing 1262497 Easting 3185526 Ground Elevation 4927.174 PVC Elevation 4927.174 Date Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) 5/27/2003 10.15 10.15 4917.02 7/2/2003 8.42 8.42 4918.75 _ _3/19/2003 8.15 8.15 2/2/2004 14.30 14.30 4912.87 3/11/2004 11.48 11.48 4915.69 4/13/2004 10.05 10.05 4917.12 5/10/2004 9.32 9.32 4917.85 NO03-MW03 Northing 1259315 Easting 3186477 _ Ground Elevation 4922.859 PVC Elevation 4925.949 Date ___ Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) 3/27/2003 6.10 3.01 4919.85 5/27/2003 5.90 2.81 4920.05 7/2/2003 5.54 2.45 4920.41 8/12/2003 3.84 0.75 2/2/2004 6.50 3.41 4919.45 3/11/2004 6.64 3.55 4919.31 4/29/2004 6.17 3.08 4919.78 5/10/2004 6.08 2.99 4919.87 Monitoring Well Observations M^ R101-MW01 RI01-MW02 Northing 244.3 Northing 243.6 Easting 8790.2 Easting 7866.8 Ground Elevation 4930.6 Ground Elevation 4931.4 PVC Elevation 4934 PVC Elevation 4933.9 Date Depth to Water(ft) Groundwater Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Date Measured PVC Ground Elevation (ft) 1/14/2002 10.03 6.63 4923.97 1/14/2002 9.53 7.03 4924.37 1/29/2002 10.23 6.83 4923.77 1/29/2002 9.67 7.17 4924.23 2/12/2002 10.44 7.04 4923.56 2/12/2002 9.81 7.31 4924.09 2/26/2002 10.46 7.06 4923.54 2/26/2002 9.60 7.10 4924.30 3/6/2002 10.46 7.06 4923.54 3/6/2002 9.53 7.03 4924.37 3/21/2002 10.58 7.18 4923.42 3/21/2002 9.73 7.23 4924.17 4/9/2002 11.04 7.64 4922.96 4/9/2002 10.26 7.76 4923.64 4/26/2002 11.23 7.83 4922.77 4/26/2002 10.23 7.73 4923.67 5/7/2002 11.31 7.91 4922.69 5/7/2002 10.24 7.74 4923.66 5/24/2002 11.16 7.76 4922.84 5/24/2002 10.02 7.52 4923.88 6/6/2002 10.63 7.23 4923.37 6/6/2002 9.56 7.06 4924.34 6/17/2002 8.85 5.45 6/17/2002 8.71 6.21 4925.19 7/1/2002 10.24 6.84 4923.76 7/1/2002 9.43 6.93 4924.47 7/12/2002 9.83 6.43 4924.17 7/12/2002 9.17 6.67 4924.73 7/25/2002 8.93 5.53 4925.07 7/25/2002 8.40 5.90 4925.50 9/11/2002 10.09 6.69 4923.91 9/11/2002 9.27 6.77 4924.63 9/24/2002 9.85 6.45 4924.15 9/24/2002 9.17 6.67 4924.73 10/7/2002 9.75 6.35 4924.25 10/7/2002 9.15 6.65 4924.75 10/29/2002 9.89 6.49 4924.11 10/29/2002 9.37 6.87 4924.53 11/18/2002 9.65 6.25 4924.35 11/18/2002 9.05 6.55 4924.85 12/11/2002 9.83 6.43 4924.17 12/11/2002 9.35 6.85 4924.55 1/15/2003 10.15 6.75 4923.85 1/15/2003 9.50 7.00 4924.40 3/27/2003 9.78 6.38 4924.22 3/27/2003 9.65 7.15 4924.25 5/27/2003 9.70 6.30 4924.30 5/27/2003 8.96 6.46 4924.94 7/2/2003 8.92 5.52 4925.08 7/2/2003 8.25 5.75 8/12/2003 9.08 5.68 4924.92 8/12/2003 8.45 5.95 4925.45 2/2/2004 14.49 11.09 4919.51 2/2/2004 10.25 7.75 4923.65 3/11/2004 12.19 8.79 4921.81 3/11/2004 10.89 8.39 4923.01 4/29/2004 11.63 8.23 4922.37 4/29/2004 10.14 7.64 4923.76 5/10/2004 14.28 10.88 4919.72 5/10/2004 9.86 7.36 4924.04 Monitoring Well Observations 0.-- R101-MW03 RI01-MW04 Northing 1476.9 Northing 2715.4 Easting 8770.3 Easting 8791.9 Ground Elevation 4930.2 Ground Elevation 4927.3 PVC Elevation 4933.3 PVC Elevation 4928.7 Date Depth to Water(ft) Groundwater Depth to Water(ft) Groundwater Measured PVC Ground Elevation(ft) Date Measured PVC Ground Elevation(ft) 1/14/2002 11.41 8.31 4921.89 1/14/2002 9.29 7.89 4919.41 1/29/2002 11.55 8.45 4921.75 1/29/2002 9.45 8.05 4919.25 2/12/2002 11.69 8.59 4921.61 2/12/2002 9.50 8.10 4919.20 2/26/2002 11.51 8.41 4921.79 2/26/2002 9.23 7.83 4919.47 3/6/2002 11.43 8.33 4921.87 3/6/2002 9.15 7.75 4919.55 3/21/2002 11.72 8.62 4921.58 3/21/2002 9.55 8.15 4919.15 4/9/2002 12.32 9.22 4920.98 4/9/2002 10.15 8.75 4918.55 4/26/2002 12.43 9.33 4920.87 4/26/2002 10.17 8.77 4918.53 5/7/2002 12.59 9.49 4920.71 5/7/2002 10.44 9.04 4918.26 5/24/2002 12.49 9.39 4920.81 5/24/2002 9.66 8.26 4919.04 6/6/2002 11.98 8.88 4921.32 6/6/2002 9.65 8.25 4919.05 6/17/2002 11.91 8.81 4921.39 6/17/2002 10.02 8.62 4918.68 7/1/2002 12.23 9.13 4921.07 7/1/2002 10.36 8.96 4918.34 7/12/2002 12.22 9.12 4921.08 7/12/2002 10.35 8.95 4918.35 7/25/2002 11.38 8.28 4921.92 7/25/2002 9.63 8.23 4919.07 ^. 9/11/2002 11.91 8.81 4921.39 9/11/2002 9.95 8.55 4918.75 9/24/2002 11.75 8.65 4921.55 9/24/2002 9.82 8.42 4918.88 _ 10/7/2002 11.65 8.55 4921.65 10/7/2002 9.80 8.40 4918.90 10/29/2002 11.71 8.61 4921.59 10/29/2002 9.83 8.43 4918.87 11/18/2002 11.36 8.26 4921.94 11/18/2002 9.47 8.07 4919.23 12/11/2002 11.60 8.50 4921.70 12/11/2002 9.70 8.30 4919.00 1/15/2003 11.75 8.65 4921.55 1/15/2003 9.66 8.26 4919.04 3/27/2003 11.20 8.10 4922.10 3/27/2003 8.63 7.23 5/27/2003 11.25 8.15 4922.05 5/27/2003 9.10 7.70 4919.60 7/2/2003 10.76 7.66 7/2/2003 8.81 7.41 4919.89 8/12/2003 14.32 11.22 4918.98 8/12/2003 9.65 8.25 4919.05 2/2/2004 12.20 9.10 4921.10 2/2/2004 9.85 8.45 4918.85 3/11/2004 12.23 9.13 4921.07 3/11/2004 9.74 8.34 4918.96 4/29/2004 12.45 9.35 4920.85 4/29/2004 10.08 8.68 4918.62 5/10/2004 12.33 9.23 4920.97 5/10/2004 10.05 8.65 4918.65 Monitoring Well Observations r RI01-MW05 RI01-MW06 Northing 4914.8 Northing 4071 _ Easting 7170.8 Easting 6122.7 Ground Elevation 4922.3 Ground Elevation 4917 PVC Elevation 4926.6 PVC Elevation 4919.3 Depth to Water(ft) Groundwater Depth to Water(ft) Groundwater Date Measured PVC Ground Elevation (ft) Date Measured PVC Ground Elevation (ft) 1/14/2002 11.15 6.85 4915.45 1/14/2002 7.38 5.08 4911.92 1/29/2002 11.13 6.83 4915.47 1/29/2002 7.39 5.09 4911.91 2/12/2002 11.14 6.84 4915.46 2/12/2002 7.45 5.15 4911.85 2/26/2002 10.89 6.59 4915.71 2/26/2002 7.22 4.92 4912.08 3/6/2002 10.78 6.48 4915.82 3/6/2002 7.14 4.84 4912.16 3/21/2002 11.19 6.89 4915.41 3/21/2002 7.33 5.03 4911.97 4/9/2002 11.62 7.32 4914.98 4/9/2002 7.38 5.08 4911.92 4/26/2002 11.49 7.19 4915.11 4/26/2002 7.10 4.80 4912.20 5/7/2002 11.57 7.27 4915.03 5/7/2002 6.98 4.68 4912.32 5/24/2002 10.35 6.05 5/24/2002 7.00 4.70 4912.30 6/6/2002 11.09 6.79 4915.51 6/6/2002 7.08 4.78 4912.22 6/17/2002 11.39 7.09 4915.21 6/17/2002 7.00 4.70 4912.30 7/1/2002 11.36 7.06 4915.24 7/1/2002 6.92 4.62 4912.38 7/12/2002 11.25 6.95 4915.35 7/12/2002 6.54 4.24 4912.76 7/25/2002 10.46 6.16 4916.14 7/25/2002 6.64 4.34 4912.66 9/11/2002 11.18 6.88 4915.42 9/11/2002 6.68 4.38 4912.62 9/24/2002 11.15 6.85 4915.45 9/24/2002 6.65 4.35 4912.65 10/7/2002 11.33 7.03 4915.27 10/7/2002 6.66 4.36 4912.64 10/29/2002 11.41 7.11 4915.19 10/29/2002 6.92 4.62 4912.38 11/18/2002 11.15 6.85 4915.45 11/18/2002 7.00 4.70 4912.30 12/11/2002 no data 12/11/2002 7.33 5.03 4911.97 1/15/2003 11.26 6.96 4915.34 1/15/2003 7.39 5.09 4911.91 3/27/2003 10.20 5.90 4916.40 3/27/2003 6.80 4.50 4912.50 5/27/2003 10.50 6.20 4916.10 5/27/2003 7.00 4.70 4912.30 7/2/2003 10.37 6.07 4916.23 7/2/2003 6.07 3.77 8/12/2003 10.85 6.55 4915.75 8/12/2003 6.21 3.91 4913.09 2/2/2004 plugged 2/2/2004 7.47 5.17 4911.83 3/11/2004 11.17 6.87 4915.43 3/11/2004 7.40 5.10 4911.90 4/29/2004 10.46 6.16 4916.14 4/29/2004 7.05 4.75 4912.25 5/10/2004 14.35 10.05 4912.25 5/10/2004 7.10 4.80 4912.20 Monitoring Well Observations RI01-MW07 R101-MWO8 Northing 3081.5 Northing 2961.7 Easting 7411.2 Easting 6107.5 Ground Elevation 4924.9 Ground Elevation 4923.7 PVC Elevation 4927.8 PVC Elevation 4928 Depth to Water(ft) Groundwater Depth to Water(ft) Groundwater Date Measured PVC Ground Elevation(ft) Date Measured PVC Ground Elevation(ft) 1/14/2002 11.20 8.30 4916.60 1/14/2002 9.65 5.35 4918.35 1/29/2002 11.22 8.32 4916.58 1/29/2002 9.67 5.37 4918.33 2/12/2002 11.23 8.33 4916.57 2/12/2002 9.73 5.43 4918.27 2/26/2002 10.90 8.00 4916.90 2/26/2002 9.44 5.14 4918.56 3/6/2002 10.85 7.95 4916.95 3/6/2002 9.36 5.06 4918.64 3/21/2002 11.30 8.40 4916.50 3/21/2002 9.59 5.29 4918.41 4/9/2002 11.73 8.83 4916.07 4/9/2002 9.20 4.90 4918.80 4/26/2002 11.60 8.70 4916.20 4/26/2002 8.92 4.62 4919.08 5/7/2002 11.70 8.80 4916.10 5/7/2002 8.69 4.39 4919.31 5/24/2002 11.70 8.80 4916.10 5/24/2002 8.89 4.59 4919.11 6/6/2002 11.14 8.24 4916.66 6/6/2002 9.21 4.91 4918.79 6/17/2002 11.28 8.38 4916.52 6/17/2002 8.80 4.50 4919.20 7/1/2002 11.38 8.48 4916.42 7/1/2002 8.79 4.49 4919.21 7/12/2002 11.39 8.49 4916.41 7/12/2002 8.97 4.67 4919.03 7/25/2002 10.58 7.68 4917.22 7/25/2002 8.46 4.16 4919.54 9/11/2002 11.23 8.33 4916.57 9/11/2002 8.57 4.27 4919.43 9/24/2002 11.28 8.38 4916.52 9/24/2002 8.61 4.31 4919.39 10/7/2002 11.30 8.40 4916.50 10/7/2002 8.66 4.36 4919.34 10/29/2002 11.41 8.51 4916.39 10/29/2002 8.87 4.57 4919.13 11/18/2002 11.19 8.29 4916.61 11/18/2002 9.28 4.98 4918.72__ 12/11/2002 11.40 8.50 4916.40 12/11/2002 9.63 5.33 4918.37 1/15/2003 11.27 8.37 4916.53 1/15/2003 9.35 5.05 4918.65 3/27/2003 9.90 7.00 _ _3/27/2003 9.88 5.58 4918.12 5/27/2003 11.15 8.25 4916.65 5/27/2003 9.00 4.70 4919.00 7/2/2003 plugged 7/2/2003 7.52 3.22 8/12/2003 plugged 8/12/2003 8.03 3.73 4919.97 2/2/2004 plugged 2/2/2004 9.74 5.44 4918.26 3/11/2004 plugged 3/11/2004 9.48 5.18 4918.52 4/29/2004 plugged 4/29/2004 9.05 4.75 4918.95 5/10/2004 plugged 5/10/2004 8.84 4.54 4919.16 LAFARG E NORTH AMERICA Construction Materials APPENDIX B - GROUNDWATER ELEVATION GRAPHS LAFARGE NORTH AMERICA INC. —Lafarge Construction Materials 10170 Church Ranch Way, Suite 200,Westminster Colorado 80221 Telephone. (303)657-4000 Facsimile: (303)657-4037 r a) I- a) w f 0 0 N _..___._.-_ N d. (O CO r Z it i O N pNO 0 N W co co co V . Z o O N Q) co co pco 0) o O ® O) p V r CD iii rn ci O V O • N _ M w V N O N O m I O Qj V N O CD N O V V N 0 O O O N f T--I. 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Erd co IIIMMINE (90* i as NENE SOi 00,• E O :v �� ; �0•iiip 00,E c 0) Es II___ C 0S > k i`:;`V:8 . ',ir l $ wr.,L.z,s i . :I VS.10 COd'' CV 0000 d- C\I00000 '�t ��Ilk /6/ 0) 0) C) OC7) OO) 0) 0) Ilk, '1t4t � d' � � � d 4td' � ct 0 (•I}) uo!iena13 aa}eMpunoaD Gravel Well Permit Application Ft. Lupton Pit DMG 112 Permit Page 27 of 81 Tro: o z _ D 9 C s a • •• �ii�,ii I uiE 1 a ; EEEE =iii - - - - - .>.3�EE ; 3 Owm o e e S o e O(13 [A '04517!' ii W 0 C WR < 9'. W W 2: wa 2¢ C W OW `Y c S 2 <Z- <2 2 3< - - '„E, LL W m e- F _ .-F_a _ r• + a n - - O a o h ft3 3 x s. #. Fo22 I1 ° UI 0 0 iii! LL. t.- `� n C� ..n n n :' .` n a _ c Z 1._~" = n 5• ;i g, _ Y` it oc =€ ; zG` I z >c � o � f 5 3 . 1 1111111 L a" Q -N, H m LL RECEIVED • Form No. OFFICE OF THE STATE ENGINEER 1-11-R 3 O ZOOt GWS 25 ' COLORADO DIVISION OF WATER RESOURCES 818 Centennial Bldg.,1313 Sherman St.,Denver,Colorado 80203 .:1 pin)888-3581 _ 055577 1 i wELL PERMIT NUMBER sPPLICANT DIV. 1 WD 80 DES.BASIN MD APPROVED WELL LOCATION WELD COUNTY NE 1/4 NW 1/4 Section 12 WESTERN mOBILE/LAFARGE - Township 1 N Range 67 W Sixtrt P.M. 1590 W 12TH AVE p!STANGEn DENVER,CO B0204-3410 Ft. from Section Line R. from Section Line (303)657-4331 UTM COORDINATES PERMIT TO EXPOSE WATER IN A PIT Northing: Easting: ISSUANCE OF THIS PERMIT DOES NOT CONFER A WATER RIGHT CONDITIONS OF APPROVAL 1) This well shall be used in such a way as to cause no material Injury to existing voter rights. The issuance of this permit does not assure the applicant that no injury will occur to another vested water right or preclude another owner of a vested water right from seeking relief In a civil court action. 2) The construction of this well shall be In compliance with the Water Well Construyion Rules 2 CCR 402-2,unless approval of a variance has been granted by the Stale Board of Examiners of Water Well Construction and Pump Installation Contractors In accordance with Rule 18. 1 Approved pursuant to CRS 37-90-137(2)and(11)for the construction and operation of a well(gravol pit)In accordance with the temporary substitute water supply plan approved by tl.e State Engineer on April 2.2001, for the Fort Lupton Gravel — Pit. Division of Minerals S.Geology Permit Number M-85-088. The well(pond)shall not be operated unless it is included in substitute water supply plan approved by the State Engineer or a plan for augmentation approved by the Water Court The water supply plan for this pit is currently valid through March 31.2003 and if it is not extended or It a court decree is not entered fore plan for augmentation,this well permit is null and void and diversion of ground water from this well must cease Immediately. 4) The average annual amount of ground water to be appropriated shall not exceed 34.9 acre-feet with the total surface area of the proposed ground water pond limited to 9 acres. 5) The uce of ground water, In addition to 26.6 acre-loel of evaporative loss. Is limited to 1 acre-foot of water used and consumed for dust control end 7.4 acre-feel of water lost with the mined product No other use of water fe allowed unless a permit therefor is approved. 6) The owner shall mark the well (pond)In a conspicuous place with well permit number(s)and court case number(s)as appropriate. The owner snail take necessary means and precautions to preserve these markings. 7) The provision of the Minimum Construction Standards In Rale 10 shall be waived f;r gravel pits except foe Rules 10.1 aid 1D.2.1 regarding aquifer contaminants. The owner of ate gravel pit shall take necessary means and precautions to prevent contaminants from entering(ho gravel pit well. 8) The owner snail submit,after initiation of excavation,plan and cross section drawings on 8-1/2-x 11'paper showing the extent of excavation, the maximum depth of the pit,and the initial static water level. 9) This well shall be constructed at least 600 foot from any existing well completed it) the same aquifer that Is not owned by me applicar f except for the well constructed under peril no.213063 for which notes was given pursuant to 37-90-137(2)(b)(IIYA), and no response was received. ROVED— . 271O614- Jr Solo Engineer API? n L nnni Br A on n f. 2eceipt No.0468024 DATE ISSUED ^' i` u ' LUUI EXPIRATION DATE Arts U STATE OF COLORADO • ICE OF THE STATE ENGINEER is;on or Water Resources �t9 'rtmerc.>i Natural Resources �+ • nerman Street.Room 8 I 8 t.'r'h l .� Denver,Colorado 8JNIJ • ['None:')IJ J!dhh-358 I [Ax• 866-JsaJ April 2, 2001 Bcn() ens Coronet http%walenAa:e.co.usfdeiauh ivm Greg E.W.vrb., Executive MIN'kg Mr. Richard T. Raines • Halo Simpson.P E Tuttle Applegate, Inc. sbLe(mincer 11990 Grant Street, Suite 304 Denver, Colorado 80223 Re: Fort Lupton Gravel Pit, Substitute Water Supply Plan • - DMG File No. M-85-088 NEV. NW/. Section 12, TIN., R67W, 6th P M. - Water Division 1, Water District 2 Dear Mr. Raines: This letter is in response to your application of August 29, 2000 and amendment dated March 2. 2001 requesting a substitute water supply plan for a sand and gravel pit to be operated by Western Mobile, Inc., a subsidiary of Lafarge Corporation (Lafarge), in accordance with 37-80- 120 C.R.S. The required fee of$1,343 for the substitute water supply plan has been paid. This pit was previously operated by another entity without a substitute water supply plan. This previous operator exposed 4.0 acres of groundwater as part of the aggregate operation. Lafarge recently purchased the site and is in the process of securing adjacent property for future mining operations. According to information submitted, no Groundwater was exposed prior to January 1, 1981. Current plans include wet mining of the site during 2001. The Applicants shall be responsible for compliance with this plan, but the State Engineer's Office may also pursue the landowner, for eventual compliance. You estimate the annual depletion to the South Platte River due to operation of the Fort Lupton Pit :o be 34.9 acre-feet per year. This total includes: 26.6 acre-feet of evaporative losses from approximately 9.0 acres of exposed groundwater, 1.0 acre-feet of water lost with dust suppression and 7.4 acre-feet of water lost with the mined product. A non-tributary Arapahoe aquifer well along Plum Creek near Sedalia, Colorado (approximately 50 miles upstream of the pit) will be used to replace depletions. Transit losses have been estimated assuming a 0.25 percent loss per mile or about 4.4 acre-feet. Total replacement water required from the well is 39.3 acre-feet per year The Fort Lupton Pa is located approximately 4,000 feet from the South Platte River. The Applicant has provided a monthly schedule of lagged depletions to the river system, together with a schedule of replacement requirements totaling 39.3 acre-feet. These replacement amounts represent the distribution of lagged depletions after ten years plus the difference between the actual depletion at the pit and the lagged depletion pro-rated over the year. The resulting replacement schedule returns the full depletion amount to the South Platte River on an annual basis. Mr. Richard T. Raines April 2, 2001 Page 2 The proposed source of replacement water for this substitute water supply plan is a non- tributary Arapahoe aquifer well (Permit No. 28265-F) 'ocatedi near Sedalia, Colorado along Plum Creek. The.well is permitted in the name of Mobile Premix Concrete, Inc. and allows an annual appropriation of 92 acre-feet from this source. The permit for this well requires that 4 percent of the water pumped must be directly returned to the Plum Creek drainage. As a result, 88.3 acre- feet is available from this well for augmentation purposes. This well source also provides replacement watery for substitute water supply plans associated with two other Lafarge aggregate mining operations. These include the Dunes Development site (M-99-093) and the Tanabe Pit (M-00-002): Replacement obligations for these sites total 44.5 acre-feet (27.3 acre-feet and 17.2 acre-feet, respectively). This leaves approximately 43.8 acre-feet available to meet the 393 acre-feet replacement requirement at the Fort Lupton Pit. The well is located approximately 50 miles upstream of the aggregate operation. A 0.25 percent transit loss (12.5 percent overall loss) has been accounted for in the replacement schedule_ Asrequired by Section 8 of Senate Bill 89-120, this substitute water supply plan has been provided to an outside consultant for review. The consultant-has recommended approval of the plan by way of a draft of this letter. Based upon statutory requirements and the recommendations of the consultant, I hereby approve the proposed substitute water supply plan in accordance with Section §37-80-12C, C.R.S., subject to the following conditions: 1. A well permit must be issued for the gravel pit in accordance with Section §37-90-137(2) and (11), C.R.S pricr to the further exposure or use of groundwater. The pending permit application (receipt number 466024) will be evaluated pursuant to this plan. As noted in your letter of August 29, 2000. the consent of one well owner (Permit No. 213063), whose well is located within 600 feet of the site, is a requirement for issuance of the well permit. A notice was sent to the we,l permit holder by this office on October 4, 2000. No objection to the application or request for hearing was received back by the November 3, 2000 deadline_ 2. The losses associated with this mining operation must not exceed a total of 34.9 acre- feet for the duration of this permit approval. These losses nclude 26.6 acre-feet of evaporation from the existing and proposed exposure of groundwater, 1.0 acre-feet of water used for dust suppression and 7.4 acre-feet of water lost In 250,000 tons of aggregate mined. With 4.4 acre-feet of transit losses associated with the transport of the non-tributary groundwater from the wellhead to near the pit site, the total replacement water required under this plan, from the non-tributary Arapahoe aquifer well (Permit no. 28265-F), is 39.3 acre feet per year Should the annual depletions to the South Platte River exceed 39.3 acre-feet prior to the expiration date of this plan, an amendment will need to be filed with this office. Mr. Richard T. Raines April 2, 2001 Page 3 3. Approval of this plan is for the purposes as stated herein. Any additional uses for-this water must first be approved by this office. Any future additional historic consumptive use credit given (e.g.. agricultural water transfer) for this site must consider all previous credits given. 4. All pumping for dust control shall be measured in a manner acceptable to the Division Engineer. 5. Adequate accounting of depletions and replacements (in acre-feet) must be provided to the Water Commissioner and/or Division Engineer on forms and at times acceptable to both of them. The accounting form(s) shall be sufficient to demonstrate that the net effective replacement equaled or exceeded the total depletion on a monthly basis. All replacement water must be concurrent with.depletions in quantity, timing and location, except that releases aggregated at the discretion of the Division Engineer may occur in a later month than the depletions. Said accounting must be received by the 10'"of the month following the reporting period. 6. The name, mailing address, and phone number of the contact person who will be responsible for operation and accounting of this plan must be provided on the accounting forms to the Division Engineer and Water Commissioner. 7. The approval of this substitute water supply plan does not relieve the Applicant and/or landowner of the requirement to obtain a Water Court decree approving a permanent plan for augmentation or mitigation to ensure the permanent replacement of all depletions, Including long-term evaporation losses after gravel mining operations have ceased. If reclamation of the mine site will produce a permanent water surface exposing groundwater to evaporation, an application for a clan for augmentation must be filed with the Division 1 Water Court at least three (3) years prior to the completion of mining to include, but not be limited to, long-term evaporation losses. If a lined pond results after reclamation, replacement of lagged depletions shall continue until there is no longer an effect on stream flow. 8. This plan is valid through March 31, 2003, unless otherwise revoked or modified. 9. This substitute water supply plan may be revoked or modified at any time should it be determined that injury to other water rights has or will octur as a result of this plan. 10. If this plan will not be made absolute by a water court action by the plan's expiration date, a renewal request must be submitted to this office with the required statutory fee (currently $217) at least 45 days prior to the expiration date of this plan (by February 14, 2003). 11 Should this substitute water supply plan expire without renewal or be revoked prior to adjudication of a permanent plan for augmentation. all excavation of product from below the water table. and all other use of water at the pit, must cease immediately. Mr. Richard T. Raines • April 2, 2001 Page 4 12. In accordance with amendments to Section §25-8-202-(7), C.R.S. and 'Senate Bill 89-- 181 Rules and Regulations adopted on Februar/ 4, 1992, the State Engineer shall determine if this substitute water supply plan is of a quality to meet requirements of use to which the senior appropriation receiving the substitute supply has normally been puL As such, water quality data or analyses may be requested at any time to determine if the requirement of use of the senior appropriator is met. • 13. Acceptance of these conditions is assumed unless a letter to the contrary is received by this office, the Division 1 Engineer(Richard Stenzel,800 8'" Avenue, Suite 321, Greeley, CO 80631) and the District 2 Water Commissioner (Robert Stahl, 9378 Weld County Road 25, Ft. Lupton. CO, 80621)within two weeks DI your receipt of this letter. Please contact Joanna Williams of this office or Mr. Dave Nettles, in Greeley at (970) 352-8712, if you have any questions concerning this approval_ . We conclude that approval of this substitute water supply plan does not impiy a position by this office on any related litigation. Sincerely, &J. Kenneth W. Knox Assistant State Engineer Attachment cc: Richard Stenzel, Division 1 Engineer Robert Stahl, Water Commissioner, Water District 2 Duane Bollig, Lafarge Julie Goetterroeller, Lafarge David Bailey, Massey Semenoff Stern & Schwarz, PC Gary Witt, Wright Water Engineers, Inc. C:\01 1-00 910 0 0dif\Raines Ft.Lupton Pit SSP Weld County— Ft. Lupton Pit(M-85-088) MONTHLY DISTRIBUTION FOR DEPLETION & REPLACEMENT REQUIREMENTS (All Values in Acre-Feet) Lagged Replacements Month Evaporative, from non-tributary Operational and .Arapahoe Transit Loss formation well • Depletions (Permit#28265-F) January 3.18 3.18 February 2.91 • 2.91 March 2.73 2.73 April D 2.65 2.65 May 2.73 2.73 June 2.96 2.96 July 3.29 3.29 August 3.66 3.66 September 3.90 3.90 eOctober 3.95 3.95 November 3.81 3.81 December 3.53 3.53 Total 39.30 y 39.30 MAY )0n) STATE OF COLORADO ?CE OF THE STATE ENGINEER - f-"- of N9re,Rex(mrccs 'meni c.I h:Anral Re,ourreS • %� �Qt :;a.:=_ �hermnn 5trccC Pawn019 t' _ v.' f5.1. D1.ancr.Culocado 9070'. Phc;nn I{0:1 One-''.SP,I �r1s16 FAN i3031866-3589 April 29, 2003 - Rill n.„-., onx l wakhr I'. ulb-ni.fM Hal D Simpson.PE Richard T. Raines tic Engineer Applegate Group, Inc_ 1499West 120th Avenue, Suite 200 Denver, CO 80234-2728 Re: Substitute Water Supply Plan, Riverbend Pit(M-00-916) Section 19, Township 1-North, Range 66 West, 6th P.M. Water Division 1, Water District 2,Weld County Dear Mr. Raines: This letter is in response to your application for a substitute water supply plan for the Riverbend Pit in accordance with Section §37-90-137(11), C.R. S. The required fee of$1,343 for the substitute water supply plan has been submitted. The anticipated total net depletion for this plan is 32.8 acre-feet per year. Of this total, 7.2 acre-feet is due to evaporation from 2.5 acres of exposed water surface, 215 acre-feel is from minirg of 800,000 tons per year of aggregate, and 2 acre-feet is from water used for dust suppression. You have provided a monthly breakdown of the annual depletions totaling 32.8 acre-feet. According to the information submitted, no water surface acreage was exposed within mining boundary prior to January 1, 1981. No phreatophyte credit has been applied to this plan. The proposed source of replacement for this pit is fully consumable Metro Wastewater Treatment Plant (W WTP) effluent from a lease with the Consolidated Mutual Water Company (CMWC) for April through September and fully consumable water from the City of Greeley for October through March. The Metro WWTP is located approximately 16 miles upstream of this aggregate operation. A 0.5 percent transit loss per mile (8.0 percent overall loss) has been accounted for in the replacement schedule. The monthly depletions and replacement requirements are found on the attached table no. 3. Tne final reclamation plan for the Riverbend Pit cal's for 2 lined lakes. This site is currently being dewatered, however, if the dewalering of the site is discontinued, the pit would fill creating additional depletions to the stream system due to increased evaporation To assure that this depletion to the river does not occur. a bond for $743,000 through DMG for lining of the lakes has been obtained- Therefore, if dewatering is discontinued this bond can finance the completion of the lining of the pit, thus preventing depletions to the stream system. Richard T Raines April 29, 2003 Page 2 As required by Senate Bill 89-120 in Section 8. this substitute water supply plan has • been provided to an outside consultant for review. The consultant has recommended approval - of the plan by way of this letter. Based upon statutory requirements and the recommendations of the consultant, I hereby approve the proposed substitute water supply plan in accordance with §37-90-137(11). C.R.S. subject to the following conditions: I. A well permit must be obtained for the gravel pit in accordance with §37-90-137(2) and (11), C.R.S. prior to exposure or use of ground water. The provisions of Colorado Revised Statute 37-90-137(2)prohibits the issuance of a permit for a well • to be located within 600 feet of any existing well, unless the State Engineer finds that circumstances so warrant after a hearing held in accordance with the procedural rules in 2CCR402-5. This hearing may be Waived it you are able to obtain statements from the owners of all wells within 600 feet, verifying that they have no objection to your use of the proposed well. In your submittal you indicated that you had obtained a waiver from the one affected well owner. However, if a new well permit is denied for reasons of 600 foot spacing, or any other legitimate reason, approval of this substitute suppy plan will be cancelled. A well permit application has been submitted, receipt no. 495270. 2. All pumping for dust control shall be measured in a manner acceptable to the Division Engineer 3. The water surface area of the groundwater exposed shall not exceed 2.5 acres, the annual water used for dust control shall not exceed 2.0 acre-feet, and the total product mined shall not exceed 800,000 tons per year resulting in 23.5 acre-feet of water lost with product. 4- Based on information provided by the consultant, this operation may not begin operating until approximately 2005. Since it is not anticipated Thal this site will operate during the.term of this approval there is not a current lease agreement in place with Consolidated Mutual or the City of Greeley to specifically cover this site. Therefore, a signed lease agreement from Consolidated Mutual for 22.9 acre-feet and from the City of Greeley for 11.5 acre-feet must be submitted to the State Engineer's Office and Water Commissioner prior to cor;mencement of operations at this site. 5. All replacement water must be concurrent with depletions in quantity, timing, and locations. 6. Adequate accounting of depletions and replacement must be provided to the Division Engineer in Greeley (810 9th Street, 2nd Floor, Greeley, Colorado 80631 (970) 352-8712) and the Water Commissioner (Robert Stahl, 9373 WCR 35, Ft Lupton. CO 80621 (970) 857-0742) on a monthly basis nr other interval acceptable to both of them. The accounting form provided with your application is subject to modification and approval by the Division Engineer. All amounts shall be in acre- foot. 7. The name, address. and phone number of a contact person who will be responsible for the operation and accounting of this plan must be provided on the • Richard T. Raines April 29, 2003 • Page 3 accounting forms to the Division Engineer and Water Commissioner_ 8. This plan is valid through April 30. 2005, unless otherwise revoked or modified. 9. This substitute water supply pan may be revoked or modified at any time should it be determined that injury to other vested water rights has or will occur as a result of this plan. 10. If this plan is not approved as an augmentation plan by the Water Court prior to the expiration date, a renewal request must be submitted to this office with the statutory fee(currently$217) at least 45 days prior to the expiration date of this plan. I I_ Should this substitute water supply plan expire without renewal or be revoked prior to adjudication of a permanent plan for augmentation, any new excavation of product from below the water table and all other use ofwater at the pit must cease immediately. 12. This office must rece!ve a copy of the $743,000 bond before mining commences. 13. In accordance with amendments to §25-8-202(7), C.R S., and Senate Bill 89-181 Rules and Regulations adopted on February 4, 1992, the State Engineer shall determine if the substitute supply is of a quality to meet requirements of use to — which the senior appropriation receiving the substituted supply has normally been put. As such,water quality data or analyses may be requested at any time to determine if the requirements of use of the senior appropriator are met. 14. If reclamation of the mine site will produce a permanent water surface exposing groundwater to evaporation, an application for a plan for augmentation must be filed with the Division 1 Water Court at least three (3) years prior to the completion of mining to include, but not be limited to, long-term evaporation losses. If a lined pond results after reclamation, replacement of lagged depletions shall continue until there is no longer an effect on stream flow. 15. Acceptance of these conditions is assumed unless this office, the Division Engineer, and the Water Commissioner, to the contrary receives a letter within two weeks after receipt of this letter - Richard T. Raines April 29, 2003 Page 4- Please contact Joanna Williams in Denver at(303) 866-3581, or Dave Nettles in Greeley at (970)352-8712, if you have any questions concerning this approval. We conclude that approval of this plan does not imply a position by this office on any related litigation. Sincerely; Kenneth W. Knox Chief Deputy State Engineer cc: Dave Nettles, Assistant Division Engineer Robert Stahl. Water Commissioner District 2 Mark McLean. Rocky Mountain Consultants, Inc. G:10904 010.mmc\Riverbend 2002-016\Approval Letter.doc • n a) c to -- ro a) ar a) E E J O! .-., u') (0 N. co C. N- in a! p >. (7 Cr) N et! N. • Na. r — •— ri CJ ^ .-- CL 0 Ca a). Er (..9_ to a) .. - . . - - m O .n " CO o c m y d • L` E h m N O M CD al U v .- c 1 -! 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Yq 1.15 8^ v s Q a a :ZS! "" f7 60., ' '', co ;f m 01 N I I _ r ti m .N t , j .@ f / I poi �' t _ iv ill i j N -, I -I •iXii � � o -- Q ii di I I iiitI ;I3I I i tilt I I - / I a gY/ z3ao,c l / .,, 0u J / lab 6 - o Z>0 t 9 � Oora —I ._ YYs `j` P= 12 I �, • ‘ol -XZD 1 '_z " _1 - I ' ram tim s I I �, - I I a I Y I m 1 O -, E / u II('-' ;. -'\ ill ,.... --• 1 FIL: I i I - I ,. � � _ ri_ i. _ I � I a F , T� t it / 1 ( nY _ .. t Water Balance—Dewatering, Operational, & Evaporation Losses. Ft Lupwn Pit DUG 112 Perna Page 28 of 81 Lafarge West Inc Dent a640PeraGnulEvap91ation FL Lupton Gravel . ii Ld65lS Be rs r . r + �. _ "" �.,, t� - tc+.,, fir' r 5-01C‘:6:4:1:2:1:: i._-y„Y _ +.cam #:1%,-;?::;e:2-111,;:' kJ`a •t I _ Cu, F.--. "i.-r, v c tr` -ic.. _C--- .Ei -41 1 Jan 029 0.085 0 025 0.02 113.09 0.18- 1110.8 041 _ 2 Feb 0.29 011 0.03 0.03 112.96 013 840.8 041 3 Mach 0.29 0.13 0.04 004 112.96 029 840.8 041 4 April 029 023 007 0.01 11296 0.50 840.0 840 5 May 029 030 0.09 0.09 112.96 0.65 840.8 840 6 June 0.29 0.44 0.13 0.13 11347 0.95 844.6 844 7 July 72864 2.1 0.34 1.04 0.463 0.48 2.92 321.00 21.74 23892 2368 8 Aug 71864 2.1 0.34 1.04 0.403 0.42 2.86 321.00 2127 23892 2368 9 Sept 12864 2.1 0.34 1.04 0.310 0.32 2.76 321.00 2055 23892 2369 10 Oct 72864 2.1 0.31 101 0212 0.22 2.66 321.0D 19.79 23891 2369 11 Nov 72664 2.1 0.34 104 0.099 0.10 254 321.00 18.92 23892 2370 12 Dec 18895 52 067 104 0.083 009 596 32100 4432 2389.2 2345 Total. 54321 15.1 2.4 1.04 2.869 2.01 20.06 2572.11 13 Jan 0603 3.1 0.34 1.06 0.085 0.60 4.04 266.62 30.06 19060 1956 14 Feb 0603 3.1 034 7.06 0.11 0.76 420 268.35 3421 1997.4 1966 15 March 0603 3.1 0.34 7.06 0.13 094 4.38 268.35 32.58 1997.4 1965 16 Agri 0603 31 0.34 1.06 023 1.64 508 268.35 37.83 1997.4 1960 - 17 May 0603 3.1 034 706 0.30 2.13 5.57 268.35 41.40 19974 1956 18 June 0603 31 0.34 T 6 0.44 3.34 670 740.65 50.47 5512.8 5462 19 July 0603 31 0.34 1.6 0463 3.52 6.96 732.99 51.77 5455.] 5404 20 Aug 0603 3.1 0.34 ].6 0403 3.06 6.50 731.96 4838 5448.1 5406 21 Sept 0603 3.1 0.34 7.6 0.310 2.36 500 731.96 43.12 5448.1 5405 22 Oct 0603 3.1 034 76 0.212 1.61 - 506 130.43 31.58 5436.7 5399 23 Nov 0603 3.1 034 76 0.099 075 4.19 729.41 31.19 5429.1 5398 24 Dec 0603 78 0 67 7.6 0.083 0.63 9.10 726.34 61.71 54062 5339 Total: 17237 41.9 4.4 7.6 2.87 21.34 61.65 6463.96 25 Jan 6581 4.7 0.34 2564 0.085 216 722 453.90 53.71 3378.4 3325 26 Feb 5918 4.7 0.34 2564 0.11 274 7 78 451 34 57.91 3359.4 3301 21 March 5978 4.7 034 2564 013 3.41 8.45 450.32 6267 33518 3289 28 April 5978 4.7 034 2564 023 597 1101 448.]9 01.95 33404 3250 29 May 5978 4.7 0.34 2564 030 7T2 1276 449.30 94.92 33442 3249 30 June 5978 47 0.34 2564 0.44 1128 16.32 45186 12143 3363.2 3242 31 July 5916 4.7 0.34 2564 0.463 11.87 1691 454.92 125.82 3386.0 3260 32 Aug 59]0 4.7 034 26.12 0403 1053 15.57 694.14 115.01 5166.5 5051 33 Sept 59]8 4.] 0.34 26.12 0.310 8.10 13.14 67819 91.74 5048.6 4951 34 Oct 59]8 47 0.34 26.12 0212 551 10.58 672.16 7870 5003.0 4924 35 Nov 5978 4.7 0.34 26.12 0.099 2.59 763 66552 5674 4953.5 4097 36 Dec 5978 43 0.34 26.12 0083 2.17 721 654.78 53.63 4873.6 4820 Total- 292340 564 4.1 2612 2.07 74.09 134.57 6525.32 37 Jan 5978 47 0.34 26.12 0.085 222 726 64660 5102 4612.7 4759 38 Feb 5978 4 7 0.34 26.12 0.11 2.79 7.83 638.42 5829 47519 4694 39 March 30895 9.1 034 5746 013 7.64 17.08 496.84 12709 3698.0 3571 40 April 4917 4.4 034 5746 023 1339 18.13 519.84 134.07 38592 3734 41 May 4917 44 0.34 5746 0.30 1730 2204 528.02 16194 39301 3766 42 June 4917 44 0.34 5746 0.44 2528 3002 536.]1 223.37 3994.8 3771 43 July 4917 44 034 5746 0463 2660 3134 545.40 233.20 4059.4 3826 44 Aug 4917 4.4 0.34 5746 0403 23.16 2790 552.04 207.55 4108.9 3901 45 Sept 98352 94 067 57.46 0.310 1781 2788 558.17 207.45 41545 3947 46 Oct 70554 50 034 7346 0212 15.56 20.92 236.66 15563 1761.5 1606 47 Nov 70554 5.0 0.34 7348 0099 727 12.61 243.31 9385 18110 1717 48 Dec 70554 50 0.34 73.40 0083 6.10 1144 246.37 85.10 18338 1749 Total- 2 84413 64.9 4.4 7348 287 165 IS 23146 5748.31 49 Jan ]0554 5.0 0.34 7348 0 085 6.25 11.59 247 40 86.20 16414 1755 50 Feb 70554 50 034 7346 011 786 1320 24740 9623 18414 1]43 51 March 70554 50 034 7348 013 977 15.11 24740 11244 10414 1729 52 Apra 70554 5.0 0.34 7348 023 17.12 2246 247.40 167.11 16414 1674 53 May 70554 50 0.34 ]348 0.30 2212 2746 247.91 204.20 18452 1641 54 June 70554 50 034 7439 0.44 32.73 38.07 54335 28325 40442 3761 55 Jury ]0554 5.0 034 74.39 0463 3.44 39.76 542.04 295.98 40404 3744 56 Aug ]0554 50 034 7439 0403 29.98 35.32 543.86 262.77 4048.0 3785 57 Sept 70554 50 0.34 74.39 0310 2306 2840 54540 211.30 40594 3848 58 Oct 70554 5 0 0.34 74.39 0212 15 TT 21.11 54]95 15706 4078 5 3911 59 Nov 70554 5.0 034 74.39 0.099 736 12.70 547.95 94.52 4078.5 3984 60 Dec 344973 10.1 067 7439 0083 6.17 1694 54540 126.07 4059.4 3933 Total: 121067 651 44 74.39 2.87 212.64 182.15 505124 61 Jan ]4419 5.1 034 120.61 0085 10.25 1569 373.14 116.]5 27]73 2661 62 Feb ]4419 5.1 034 11061 0.11 12.91 1635 37672 136.09 26039 2667 63 March ]4419_ 5.1 034 120.61 0.13 16.04 2140 37672 15982 2803.9 2644 64 AMA 74419 5.1 034 120.61 023 28.10 33.54 37621 249.55 2800.1 2551 65 May 14419 5.1 0.34 120.61 030 36.30 _ 41 74_ 3]6.12 310.57 2803.9 2493 66 June_. ]4419 5 I 0 34 12061 044 53.0] 50.51 3]723 _ 43530 2807 7 23]2 67 July 74419 5 I 034 12061 0463 55.84 6128 3]825 45590 2015.3 2359 68_Aug _ 74419 5.1 034 120.61 0403 40.61 54.05 37978 _402.10 28268 2425 69 Sept 74419 _5 1 0.34 12061 040 3 3739 42.83 380.81 31865 283.4 2516 70 Oct 74419 5.1 __034 120.61 0212 25.57_ 3101 382.34 230.71 28458 2615 71 Nov 74419 5.1 034 10181 0099 10.06 1552 362.05 11546 28496 2734 72 Dec 93020 _1.2 034 8 1011 287 265 1389 342 3_ 103_34 26458 2]11 To tal 2 9702! 613 0.1 tOl Dl 26] 3261 40].69 4541.09 �� W142710000437 Checked By TNA Checked BY BAC SW59771 ihi1 G Summary7Summary I able /MEC 7 arm 3 Environmental.Inc Page:1 of Lata9e West.MC- Dewatelii90paabmaFEvapoe8s. Ft.Lupton Grant Opiaeonal Losses H �atw 4 Fh pr n tic_ t.. C tti ',4..Jc C. tee i G ` z y __ Y 1 t f,. 1 1 L.a.. iu..-u.. 1 " F rp.� 1 m 1_¢eY I cY..tsi SC`i. 1:='..o 1 c... ' L 1 ,,..ti. (-__,, ;y.,Y ;I t t_ L C:1z_ Il-.4-e-. Ss ,- 73 Jan 174419 5.1 034 101.81 0085 8.65 1409 360.81 104.86 28314 2730 74 Feb 174419 5.1 0.34 10181 0.11 10.89 16.33 379.78 12152 2626.8 2705 75 March 174419 5.1 0.34 10181 0.13 13.54 1898 378.16 141.22 28192 2678 76 April 174419 5.1 0-34 102.9 023 23.98 29.42 713.05 218.85 5307.3 5088 71 May 174419 5.1 0-34 107.9 0.30 30.97 3841 713.05 27091 53073 5036 78 June 174419 51 034 102.9 044 4528 50.72 71561 37733 53263 4949 79 Jury 174419 5.1 034 102.9 0.463 47.64 53.08 717.65 394.94 5341.6 4941 80 Aug 174419 5.1 1.34 102.9 0.003 41.47 46.91 720.12 349.00 5364.4 5015 81 Sept 174419 10.0 0.67 1029 0310 31.90 4257 724.30 31671 5391.0 5074 82 Oct 168185 4.9 034 59_59 0212 3383 39.07 346.56 290.)0 2579.5 2289 83 Nov 168185 4.9 0.34 5959 0099 15.80 2104 34605 156.53 2575.7 2419 84 Dec 168185 4.9 034 59.59 0083 1325 18.49 342.47 13754 2549.0 2411 Total: 2074321 655 4.4 59.59 2.87 31720 387.11 6478.81 85 Jan 168185 4.9 0.34 5959 0.085 1357 18.81 340.42 139.91 2533.8 2394 86 Feb 168185 4.9 0.34 5959 0.11 17.08 22.32 337.36 166.03 25110 2345 87 Mardi 168185 49 0.34 59.59 0-13 2123 2647 336.85 196.90 2507.2 2310 88-April 168185 4.9 0.34 59.59 0.23 37.18 42.42 335.82 31564 2499.6 2184 89 May 168185 4.9 0.34 59.59 0.30 48.04 53.28 338.38 396.38 - 25166 2122 90 June 168185 4.9 0.30 59.59 0.44 70,22 75.46 342.98 561.42 2552.8 1991 91 Jury 168185 4.9 034 59.59 0.463 73.89 79.13 346.56 588.73 2519.5 1991 92 Aug 168185 4.9 0.34 59.59 0.003 64.31 6955 348.60 51749 2594.7 2077 93 Sept 168985 4.9 0.34 59.59 0.310 49.47 51.71 351.16 407.06 2613.7 2207 94 Oct 168185 49 0.34 59.59 0.212 33.83 3907 352.18 290.70 2621.3 2331 95 Nov 168185 4.9 034 59.59 0.099 15.80 21.04 349.63 156.53 2602.3 2446 96 Dec 168185 0.9 0.34 59.59 0.083 13.25 18.49 345.54 137.54 2571.9 2434 Total: 2011220 58.8 4.1 59.59 287 45786 520.74 4125.48 97 Jan 168185 4.9 0.34 59.59 0085 1357 18.81 342.47 13991 2549.0 2409 98 Feb 168185 49 0.34 59.59 0.11 17.08 22.32 339.91 166.03 2530.0 2364 99 Mardi 168185 49 0.34 59.59 013 2123 26.47 336.85 196.90 25072 2310 100 April 168185 49 034 59.59 023 37.18 4242 33634 31564 2503.4 2188 101 May 168185 4.9 034 5959 030 4804 5328 33991 396.30 2530.0 2134 102 June 168185 49 0.34 59.59 040 7022 7546 34400 56142 2560.4 1999 103 Jury 168185 4.9 0.34 5959 0463 7389 7913 34707 588.73 25813 1995 104 Aug 168185 4.9 0.34 59.59 0.403 6431 69.55 348.60 51749 2594.) 2077 105 Sept 168185 49 0.34 59.59 0310 49.07 54.71 351.16 407.06 26137 2207 106 Oct 16(1185 4.9 0.34 59.59 0.212 33.83 39.0) 352.18 290.70 26213 2331 107 Nov 168185 49 0.34 59.59 0.099 15.80 21.04 349.63 156.53 2002.3 2446 108 Dec 168185 4.9 0.34 159.9 0083 1327 18.51 416.59 137)3 3100.7 2963 Total: 2018220 58.8 4.1 159.9 287 457.89 520.77 4204.71 i 109 Jan 168185 0.9 0.34 159.9 0.085 13.59 1883 40790 14011 30360_ 2896 110 Feb 168185 4.9 034 160.7 0.91 17.19 2243 693.63 16692 5162.) 4996 Ill March 168185 49 0.34 160.7 0.13 21.37 2661 648.65 198.00 48279 4630 112 Apri 168185 49 0.34 160) 023 3744 42.68 62156 317.56 4626.3 4309 ;13 May 168185 4 9 0.34 160) 0.30 48.37 53.61 623.60 398.86 4641.5 4203 114 June 304705 09 068 160.7 044 7071 8029 631.78 59734 47024 4105 115 July 136520 4 0 034 27181 0463 125 85 130.19 36752 968.60 2735.5 176) 116 Aug 309042 9.1 D.34 27101 0403 109.54 118.98 382.34 885.21 2845.8 1961 117 Sept 172522 5.1 0.34 2225 0310 6898 74.42 374.16 553.65 2784.9 2231 118 Oct 172522 5.1 0.34 222.5 0212 47.17 52.61 382 34 39142 2845.8 2454 119 Nov 1)2522 5.1 034 222.5 0099 2203 2747 37212 204.36 27697 2565 120 Dec 172522 51 034 222 5 0 083 10.47 23.91 36109 97.07 2693.6 2516 Total 2281210 64.9 4.4 222.5 287 60011 672.03 586747 121 Jan 172522 51 034 222.5 0085 18.91 2435 354.23 181.18 26365 2455 122 Feb 172522 5.1 034 222.5 0.11 23.81 2925 34656 217.60 25795 2362 123 March 172522 5.1 0.34 222.5 0.13 29.59 35.03 341 96 260.64 25452 2285 124 Apo 172522 5.1 0.34 2225 0.23 51.04 57.28 336.85 426.18 25072 2081 125 May 1)2522 5.1 034 222.5 030 66.97 72.41 349.63 538.75 2602.3 2064 126 June 112522 51 034 222.5 044 97.90 10334 360.36 768.85 26822 1913 127 July 172522 5.1 034 2225 0463 103.02 10806 370.07 806.92 2754.5 1940 128 Aug 172522 5.1 0.34 2225 0403 89.67 95.11 3)825 707.60 2815.3 2108 129 Sept 172522 5.1 0.34 222.5 0310 68.98 7442 383.36 553.65 2853.4 2300 130 Oct 1)2522 5.1 0.34 222.5 0212 47.17 52.61 38745 39142 2883.8 2492 131 Nov 92522 5.1 0.34 222.5 0099 2203 2747_ 375.18 204.36 2792.5 2588 137 Dec 112522 51 0.34 2225 0003 18.47 23.91 363.94 177.87 2708.8 2531 Total: 20)0264 81.2 4.1 222.5 247 638.35 703.63 4347.13 Prepared By FHA n742)1000043/ Checked By BAC S WSPEN1bit C Summary/Summary lank AMEC Earth 8 Environmental,Inc Page 2 of 6 Lxage urea inc llewatrrgOpenbonal-Evapcm6on FL Lupton Gravel , yLo4:u8 J K. L +c.. t it a_ 1,cc liRS+ t-- rn'-."t I -.11”11.71,71.1't0 c ' .. ay L cJ ' '3c, � i,,.4. ,,,3t wttc.fv 11:,k-4.*,`"1 Lrff--,. ^Ct.c- v=--.r_.,. L i 1 n.2 t.,. .1. 1 11,E,ye,z,1 I L :-...<,.,,..:,,,,-,-0.a . i r ") F.=X e..f E, 2;r�-.f j': E`valri*,J. Jr ..4rj 72-1 .1E 7J 8-'- 33 Jan 1725.22 5.1 014 222.5 0.085 1691 24.35 354.24 181.18 26403 2459 134 Feb 121512 5.1 0.34 222.5 0.11 23.81 29.25 34768 217.60 2587.1 2369 135 Math 122511 5.1 0.34 223.01 0.13 2966 35.10 44572 261.15 3317.5 3056 136 Apra 172522 5,1 0.34 223.01 0.23 51.96 52.40 423.24 427.07 3154.0 2727 137 May 172522 5.1 0.34 223.01 0.30 67.13 72-57 434.99 539.89 3237_7 2690 138 June 172522 5.1 0.34 123.01 0.44 98.12 10356 44828 220.52 3336.6 2566 139 July 172522 51 0.34 223.01 0.463 10325 108.69 460.54 80668 34279 2619 140 Aug 172522 94 067 223.01 0.403 8987 99.94 46923 743.58 3492.6 2749 141 Sept 144487 4.3 034 264.81 0 310 82.09 86.73 154.37 64528 1149.0 504 142 Oct 144481 4.3 034 264.81 0212 56.14 60.78 17).88 45220 1324.0 872 143 Nov 144487 13 0.31 264 81 0.099 2622 3086 181.99 229.57 13620 1132 144 Dec 144487 4.3 034 261.81 0083 21.98 26.62 184.52 198.05 1373.4 1125 Total, 1958124 62.3 4.4 264.81 287 669.14 735.85 4084.58 145 Jan 144487 43 0.34 264.81 0.085 2251 27_15 185.04 201.99 13772 1175 146 Feb 144487 43 0.34 265.53 0.11 2641 3305 386.43 24590 28262 2630 147 Marc 144407 4.3 0.34 265,53 0.13 3531 3996 362.52 297.27 2735.5 2438 148 API 144487 4.3 0.34 265.53 023 6187 6651 354.74 494.82 26403 2146 149 May 101487 13 0.34 265.53 030 79.92 04.56 371.09 62916 2762.1 2133 150 June 144187 4.3 0.31 265.53 0.44 116.83 121.47 386.94 903.76 28800 1976 151 July 144487 8.6 068 265.53 0463 122.91 132.22 396.14 983.72 2948.5 1965 152 Aug 146902 4.3 0.34 287.72 0.403 115.95 120.59_ 252.51 09720 1879.4 982 153 Sete 146902 4.3 0 31 287.72 0.310 89.19 93.83 263 75 698.12 1963.1 1265 154 Od 146902 4.3 0.34 287.72 0.212 61.00 65.64 270.91 488.31 20164 1528 155 Nov 146902 4.3 034 28772 0.099 28.48 33.11 250.97 246.44 18680 1622 156 Dec 146902 4.3 0.34 287.72 0.083 23.88 28.52 244.33 21219 18186 1606 Total: 1745999 55.9 1.4 287.72 2.87 786.31 646.63 3730.36 157 Jan 146902 4.3 0.34 287.72 0.065 24.46 29.10 24024 21648 1708.1 1572 158 Feb 146902 - 4 3 0.34 256.62 0.11 27.46 32.10 236.66 238.81 17615 1523 159 Menu 146902 43 0.34 256.62 0.13 34.13 38.77 235.13 288.45 1750.1 1462 160 AO 146902 43 0.34 256.62 013 59.79 61.43 233.08 479.38 1734.9 1255 161 May 146902 43 034 256.62 0.30 7724 81.88 24944 609.21 1856.6 1247 162 June 146902 4.3 034 256.62 0.44 112.91 117.55 260.69 074.59 19403 1066 163 JON 146902 43 034 256.62 0463 118.82 123.46 26733 918.51 1989.8 1071 164 Aug 146902 43 034 256.62 0.403 103.42 108.06 27193 803.95 2024.0 1220 165 Sept 146902 4.3 034 256.62 0.310 79.55 81.19 275.51 626.39 2050.6 1424 166 Oct 146902 4.3 034 256.62 0.212 54.40 59.04 27650 43928 2073.5 1634 167 Nov 146902 43 034 256.62 0099 2541 30.05 256.60 223.51 1909.9 1686 168 Dec 146902 4.3 0.34 256.62 0.083 2130 25.94 247.91 192 99 10452 1652 Total: 1762824 51.60 1.1 256.62 287 738.89 7949 305109 r-r 169 Jan 146902 4.3 034 258.09 0085 21.94 2650 629.73 197.74 4687.2 4489 170 Feb 146902 43 034 258.09 0.11 27.62 32.26 59600 239.98 4435.1 4196 171 March 146902 43 0.34 258.09 0.13 34.33 38.97 9709 20991 4295.3 4005 172 Apr. 146902 4 3 0.34 258.09 023 60.13 64.77 564.31 401 93 4200.2 3718 '3 May 146902 4 3 034 250.09 0.30 77.69 82.33 592.42 61250 4409.4 3797 4 June 146902 4.3 034 258.09 0.41 113.56 11820 60078 87911 45312 3652 .15 July 293804 85 0.68 258.09 0463 119.50 128.68 621.05 957.35 4622.5 3665 176 Aug 144377 4.2 0.34 300.57 0.403 121 13 125.67 372.12 934 98 2769.7 1835 177 Seth 144377 4.2 034 300.9 0.310 93.18 97.72 389.50 727.01 2899.0 2172 170 Oct 144377 4.2 0.34 300.57 0212 63.72 68.26 40.83 507.86 30132 2505 179 Nov 144377 4.2 0.34 300.57 0099 2976 34.30 398.70 255.17 29675 2712 100 Dec 101377 4.2 034 300.57 0.083 24.95 2949 39512 21939 2940.9 2722 Total: 1897101 55.3 4.4 300.57 287 787.49 847.21 6149.63 181 Jan 144377 42 0.34 300.57 0085 25.55 30.09 392.05 223.86 29181 2694 182 Feb 144377 4 2 0.34 30057 0.11 32.16 36.70 388.98 273.06 2895.2 2612 183 March 144377 4 2 034 300.57 0.13 39.90 4152 386.43 33120 28761 2545 184 Apri 144377 4 2 034 300.51 023 70.03 74.57 303.36 554.82 28534 2299 185 May 144377 42 0.34 300.57 030 9047 95.01 100.23 706.89 29709 2272 186 June 144377 4.2 0.34 300.57 0.44 132.25 136.79 410.45 101772 3055.0 2037 167 July 141377 42 034 300.57 0.463 139.16 14370 418.12 1069.16 3112.1 2043 188 Aug 144377 42 0.34 300.57 0403 121.13 125.67 - 42323 934.98 3150.1 2215 189 Sept 144377 4.2 034 300.57 0.310 93.18 9772 42865 72701 31920 2465 190 Oct 144371 42 034 300.57 0.212 63.72 60.26 43141 50786 3211.0 2703 191 Nov 144377 02 0.34 30101 0099 29.81 3135 452.37 255.53 33670 3111 192 Dec 144371 42 0.34 30107 0083 14.99 2953 43448 21969 3233.03014 Total: 1732524 50.4 4.1 301 07 2.87 862 43 916.91 4919.96 110000431Prepare!By TIU Checked 8y BAG e WSPEahibA G Summary/Summary Table AMFC farm 8 Enwmrnenlal.Inc. Page-3 W 6 water naaCe Lange W .Inc- De rateri90perabonae-Evawa&n Ft Lupton Gravel Operational Losses .' 1 .J`C._. '1.ytVE '~ -' ai.42E I t ;..s. "tic. ez' 4,....-4,-4,17-A,, L._._ic C:h.u_,. :•1t . "�4t %.d.'_ .._._ c- L.-.-, .,pc" <i...Pr-gi 2F t`, u- Lt CELL_ 193 Jan 11437] 42 0.34 301.07 0.085 r 25.59 30.13 42313 224.17 3150.1 2926 194 Feb 144377 4.2 0.34 301.07 0.11 3221 36-75 41607 273.45 30969 2823 195 March 144377 41 034 301-01 0.13 40.04 4458 411_47 33169 3062.6 2731 196 Apti 144377 42 0.34 301.74 023 70.31 74.85 516.77 55685 3846.4 3290 197 May 288754 6.3 0.34 301 74 030 90.02 99_46 534.66 740.01 39795 3240 196 June 138065 4.1 0.34 365.17 0.44 160.67 165.11 23615 122645 1757.7 529 199 July 138065 4.1 0.34 365-11 0.463 169.07 173.51 26314 1290.94 19593 668 200 Aug 138065 4.1 0.34 365.17 0.403 147.16 15160 273-46 1127.93 2035.4 907 201 Sept 284959 8.4 068 365.17 0.310 11320 122.28 278.06 909.78 2069.7 1160 202 Oct 146891 43 0.34 379.37 0212 80.43 85.07 253.53 632.89 1887.0 1254 203 Nov 146894 1.3 0.34 379.37 0.099 37.56 42.20 244.84 313.95 1022.4 1508 204 Dec 146894 43 0.34 379.37 0083 31.49 36.13 235.64 268.79 1753.9 1485 Total: 2006099 58.7 4.1 379.37 287 990.56 1061.68 4087.14 205 Jan 146894 4.3 034 362.87 0.085 30.84 35.48 230.02 264.00 1712.0 1448 206 Feb 146894 13 0.34 362.87 0.11 3883 43.47 225.42 323.40 1677_8 1354 207 Mary 146894 4.3 0.34 362.87 0.13 4826 52.90 220.02 393.59 1643.6 1250 208 Apd 146894 4.3 034 363.61 023 84.12 89.36 424.25 664.85 3157.8 2493 209 May 146891 4.3 0.34 363.61 030 109.45 114.09 42681 84880. 3176.8 2328 210 June 146894 4.3 0.31 36361 0.44 159.99 164.63 429.88 122484 3199.6 1975 211 July 146894 43 034 363.61 0.463 168.35 172.99 436.52 128].06 3249.1 1962 212 Aug 146894 43 034 363.61 0.403 14653 151.17 140.61 1124.74 3219-5 2155 213 Sept 146894 4.3 0.34 363.61 0.310 112_12 117.36 445.72 873.15 3317.5 2444 214 Oct 146894 4.3 0.68 363.61 0212 77.09 82.07 450.83 610.57 3355.6 2745 215 Nov 143310 41 0.34 401.25 0.099 39.72 4426 33429 329.32 24882 2159 216 Dec 143310 42 0.34 40125 0083 33.30 37.84 338.38 281.56 2518.6 2237 Total: 1755560 51.4 4.4 401.25 287 1049.91 1105,63 4403.54 217 Jan 143310 42 0.34 40125 0.085 34.11 38.65 326.62 26753 2431.1 2144 218 Feb 143310 42 0.34 401.25 0.11 42-93 47,47 306.69 15320 2282.7 1930 219 Match 143310 42 034 40125 0.13 5337 5].91 311.80 430.82 2320.8 1890 220 ADM 143310 41 0.34 40125 023 93.49 96.03 30158 729.35 2244.7 1515 221 May 143310 42 0.34 40125 0.30 120.78 125.32 325.09 93235 24197 1487 222 June 143310 41 0.34 40125 0.44 1]6.55 181.09 34247 1347.31 2549.0 1202 223 July 143310 41 0.34 40125 0463 185.78 190.32 36130 1415.97 2689.8 1274 224 Aug 143310 41 0.34 40125 0403 161.70 16624 377.23 123685 2807.7 1571 225 Sept 143310 42 0.34 401.25 0.310 124.39 128.93 365.92 95922 2872.4 1913 226 Oct 143310 41 0.34 401.25 0212 85.07 89.61 386.94 666.66 2880.0 2213 227 Nov 143310 4 2 0.34 401.25 0 099 39.72 4416 358.83 329.32 2670.8 2341 228 Dec 143310 42 034 40125 0.083 33.30 37.84 348.09 28156 2590.9 2309 Tote: 1]19720 50.4 4.1 40125 2.87 1151.19 1205.67 4132.63 1229 Jan 143310 4.2 0.34 40119 9085 34.15 38.69 403.61 28787 3005.6 2718 230 Feb 143310 42 0.34 401.79 0.11 42.98 47.53 ]]5.18 353.63 2792 2439 1231 March 143310 42 0.34 401.79 0.13 53.44 57 96 35739 431.36 2659.4 2228 37 Apra 143310 42 0.34 401.79 023 93.62 98.16 345.54 73029 2571.9 1842 3 May 143310 4.2 0.34 336.89 030 101.40 105.94 396.65 78822 2952.3 _ 2164 _34 June 143310 4.2 0.34 33669 0.44 14823 152.77 427.83 1136.62 31844 2018 235 July 143310 41 0.68 336.89 0463 155.98 160-86 459.01 119680 34165 2220 236 Aug 285190 8.4 034 380.54 0403 153.36 162.10 20055 120601 15522 346 237 Sept 141688 4.2 034 380-54 0.310 11797 122.51 243.31 911.46 1811.0 899 238 Oct 141880 42 034 365.84 0212 77.56 62.10 263.]5 610.81 1961.1 1352 139 Nov 141888 42 034 365.84 0.099 36.22 40.76 20906 30324 1556.1 1253 240 Dec 141888 4.2 034 365.84 0.083 30.36 3490 213.15 259.69 1586.5 1327 total: 1855920 54.6 4.4 365.84 2.87 1045.28 110130 3903.13 241 Jan 141888 41 034 365.84 0085 31.10 35.64 214.17 265.13 1594.1 1329 242 Feb 141808 42 034 366.45 011 39.21 43.75 21213 325.50 1578.9 1253 243 March 141888 4.2 034 36645 013 48.74 53.28 210.08 396.39 1563.7 1167 244 Apr9 141888 41 0.34 36645 023 8538 8992 20599 669.03 15332 964 245 May 141888 4.2 034 366.45 030 110.30 11484 267.33 65442 1989.8 1135 246 June 141688 4.2 034 366.45 044 161.24 165.78 28778 1233.39 2141.9 909 247 July 141888 4.2 0.34 366.45 0 463 169 67 17421 198.51 1296.10 2221.8 926 248 Aug 286790 85 D.68 366.45 0403 141.68 15686 303.11 1167.03 22561 1089 249 Sept 144902 4.3 034 390.31 0310 121.00 12564 81 78 934.73 608.7 -326 250 Oct 144902 4.3 034 390.31 0212 82 751 87.39 100]0 650.15 149.5 99 251 Nov 144902 43 0.34 390.31 0.099 38.64 43.28 97.12 32201 722.9 401 252 Dec 144902 4.3 034 39031 0083 32.40 37.04 92.52 275.55 6886 413 Total. 1859614 5St 4.4 39031 2.81 1066.09 1127.61 237112 To/4711000043/ prepared By TIN Checked By BAC S WSfE Thi,4 G Summarytsummary Table AMEC Earth 8 Environmental Inc Page:4.16 Lafarge West Lac Water Balace FL tuplon Gravel De+aln°ry.Opna6°^al{vapuraEan Losses -V i t m s t ®Jan�__.:.7_217:43-i-1f:..Y J .i€�i4,l 1 i L 3 1r_i?.�.1 fP 2.5 u 3-„{SE..i ",1 fc r 0 '—' 144902®® Y7 lam. 6696 386 ®Feb 144902® 0.34 °0.11 685 33.18 37.82 89.96 28135.YIC?65 ..SCY � c March 144449902 43 03344 CM 0.13 51.91 56.55 85 8817 M 6392 305 an 144902 43®2. "® 0.30 117.76 121.16 212.400 324.07® 244,21 501 C'.'_ al® 6] 0.44 172.14 1]078 335.82 131525 24996 1184 w- 4.3 0.43 181.14 185.78 342.98 138220 2552.8® ®rEINI 144902 43®�i 0403 157.67 162.31 34060 ,207.55 25942 m©ma 14444909022 MIMI 0 8 WM Mir 0.310 18294 122.2 35280� 26632 4.2�� 0.099 92.12 357.80 68538 203.9 IMMO m 143609®�®i 003 34.06 45.17 274.49 286.92 2024.0 33 IED Jan Total: 1736236 55.6 4.4 410.1. 24.76 38.60 271.93 28.2 2024.0 1)3] ®Fan 143609 SUMMED 0.085 134.89 134.89 39.63 3267.33 FLaa Mach �443609 0.13 54.50 59.13 267.33 1940-3Ear`°�., ®I�rw M09.17 260.69 r 19403 e1 r��.n' 143609 42�� 023 3 123.534 128.08 266.82® 1986.0 1033 Jurne 11360� � 0.44 180.58 185.12 27551 137.33 2050.6 673 ®r[.J�S. 143609®�W 0 0.463 190.02 191.94 281.1314, 2092.5 645 ®E+•� 143609® 0.34 40.42 165.40 169.94 28825 964.35 2134,3 870 ®Oa 143609 42 034 410,42 0.310 12723 131.77 291.8] 980,9 2199.4 1192 029 8].01 91.53 296.44 68112 2199.0 MIME= 143609®� a 0.009 40.63 45.14 286.24 2130.5 Ma �� 143609�� Total: 14233011 50.4 0.03 34.10 38.64 513.70 362]5 M1,'>i�f. ®� 143609 4.1 410.33 217 134.53 1232.01 3545,33 � �®®iEDECI ntffin 0085 34,92 1 3.96 39.46 49426 293.59 36]90 3385 rric'wt�'� 143609 WI 0 x� 0.13 54.64 4850.1 471..92 4345.96 31115® Emma 143609 2 410.3 95.72 190.26 491.)9 )45.96 3563 fi mA®Nents 8.6a . 410.3 0:44 123.66 8 190.85 492.24 484 363.0 2710 ug 148268 4 4 0.34 465.51 0.43 215.53 22027 289.82 1638.82 21571 518 mQR� 148268 44 501.57 41 94 9300 2322 mr+v'a� 148268 44 0 0.403 187.79 10.45 192.53 461.57 1432.42 34355 2003 m Oct 148268 44 0'44 465.98 0.310 109.19 46822 111000 3480] 2 79 EEO 6700 748268 �C 0212 4966 79.13 103.53 474.35 )]0 25 _ a EM Dec 38.68 50.87 064.3 3]8.49 3458.3 Total: 18� 0.0099 4342 46003 209 148268 56.0 4.4 465.95 2.57 1265.04 132346 5541.36 WIN 3444.1 an 1290 Feb 289535 8.6®®ir.,a Oa4 49.94 5932 827104 329 95 6�.7 3056 ® I 3 0R01 � 42 WWI 023 349 6593 554.08 506.14 4114.93 m'� 101161® 0.30® 115.77 558.27 861.34 41546 3293 195_� 141257 0.44 230711 562.26 110296 4185.0 3082 728 COMM. 84®� 0.463 221.03 192.39 225.57 565.84 42569 31 rag, 036 NM MEN Mang NZEJ 0.403 201.47 WEI m©1� � 0310 152 31 156-85 37621 1®.. 2800098 92 1 t 33 �WI 0.212 009948.53 37621 ]34.59 2800.1 ma�� 41` 9 0.083 43.99 403 9021 21001 act arra Total 1995030 592 4.5 44432 56°B 22.72 37621 300.15 2000.1�� 141925�� 2.85 1337.7 44231 6316.24 �I®944�� 141925 42 034 QID 0.085 31'7 5200 376.21 2600 I 2485 2413 ErnI...�¢r 41925 ®j WS 0.13 59.51. 4 2800.1 � '��Er 023 103.53 10088.07 316.21 2800.1 1996 � 473 40 ® 11199225 17. 034 444 32 030 133.74 13818 37621�i 2100.1® .�e' 141925 47 0.44 195 50 200.6 96.21 46830 2800.1 1311 EZDIETWIWN 141925 42�®ISIEDECD3 0.403 179.06 05 72 103.a 376.21 I 200.1 1434 NovEM 41925 as� 0.310 9420 19024 376 21 1734.59 2800.1® 41925 4 2�� 0099 0 212 20 90.24�r , 234.39 2800.1 2766 39-92 3893 Total- 15611]5�Dec �� 003 7760 2474 36105 1000.1 2439 441 L6] 127.110 1327 74 4f�00 29].3 00 -291 26 W'•• .0043' SWSPEmiDn G Su may/Summay Table Prepared By-TNA AMEC Each 8 Ebvimnmental Inc Checked By RAG Pages o16 Lafarge West arC. Deraleil9OGdadona Enparabcn Ft bupbn Gravel s , - altossef v tic ‘-'13,,-/A-0.5. Lam' Lri € s _ is C t 1 ct � fkq e rh 3. - C �,r n7. 1..r {lr si TTh,4,,.-E4j 124,-.1..;1:O,17,-1 LC 1 z +..a a{._ L " Irk. ",...;:J.-4.7.-1,:;-- 1-+....... J'[ l-.'-4- -!i !' � U . "'t- link :31.,�j.±rJ 4J 18....1.'7. :ff33 SE.iuilth _ `.1.332161-21117-21 1- iTSS. 1 �r(iT -St 313 --_11 0.085®i irralIIMINIMIIIIIMMIIIIIIMIIIMEZI CIEllallIMEICI ®Qr'---®�ID- '®' -®' m.1Ta''-MEM-MEM 0.083 IllEal IIIIMIMIIII-NIEM-MI Total. 0 0.00 0.0 472.4 2.87 1355.32 1355.32 325 Jan 472.4 0.065 40.15 40.15 298.15 . -299 326 Feb 472.4 0.11 5055 50.55 31607 -376 327 March 472.4 013 62.83 - 62.83 467.45 -461 328 Ap9 472.4 023 110.01 11007 018.91 -819 329 May 412.4 0.30 142.19 142.19 1057.91 -1058 330 June 472.4 0.44 207.86 207.86 1546.45 -1546 331 July 472.4 0.463 218.72 218.72 1627.29 -1627 332 Aug 472.4 0.403 190.38 190.38 141641 -1416 333 Sept 472.4 0.310 146.44 146.44 1089.54 -1090 334 Oct 472.4 0212 100-15 100.15 745.11 445 335 Nov 472.4 0.099 46.77 46.77 347.95 -348 336 Dec 472.4 0.083 3931 3921 291.72 -292 Total: 0 0.00 0-0 472.4 2.17 1355.32 1355.32 337 Jan 472.4 0.085 40.15 40.15 298.15 -299 338 Feb 472.4 0.11 50.55 50.55 376.07 -376 339 Marty 472.4 0.13 62.83 82.83 467.45 -467 340 April 472.4 0.23 110.07 110.07 818.91 -819 341 May 472.4 0.30 142.19 142.19 105791 -1058 342 June 472.4 0.44 207.86 207.86 154645 -1546 343 July 472.4 0.463 218.72 21872 1627.29 -1627 344 Aug 472.4 0.403 190.38 190.38 1416.41 -1416 345 Sept 472.4 0.310 146.44 14644 1089.54 -1090 346 Oct 472.4 0212 100.15 100.15 74511 -745 347 Nov 428.7 0099 t 42.44 4244 315.76 -316 348 Dec 428.7 0083_ I 35.58 35.58 264.73 -265 Total. 0 0.00 0.0 4287 2.87 1347.36 1347.36 349 Jan 428.7 0085 36.44 36.44 211.11 -271 350 Feb 428.7 0.11 45.87 45.87 341.28 -341 351 March 428.7 0.1357.02 57.02 42421 -424 "44152 A9N 428.7 023 99.89 99.89 743.16 -743 3 May 428.1 0.30 12904 12904 960.05 -960 i4 June 4267 0.44 188.63 188.63 1403.39 -1403 355 Jury 428.7 0.463 198.49 198.49 1476.15 -14n 356.Aug 428.7 0.403 172.77 172.77 1285.38 -1285 357 Sept 428.7 0.310 132.90 132.90 98875 -989 358 Oct 428.7 0 212 90 88 90.88 676.18 -676 359 Nov 428.7 0.099 4244 4244 315.16 -316 360 Dec 428.7 0.083 35.56 35.58 264.73 -265 Total: 0 0.00 0.0 428.7 2.51 1229.94 1229.94 361 Jan 428.7 0.085 36.44 36.44 27111 -271 362 Feb 420.7 0.11 45.87 4587 34198 -341 363 Match 428.7 013 5702 57.02 42421 -424 364 April 428.7 0.23 99.89 99.89 74316 443 365 May 4287 030 129.04 129.04 960.05 -960 366 June 428.7 044 18863 188.63 1403.39 -1403 367 My 428.7 0.463 198.49 198.49 1476.75 -1477 368 Aug 428.1 0.403 172.0 172.77 128538 -1285 369 Sept 428.7 0310 132.90 132.90 98875 -969 370 Oct 426.7 0212 9088 9088 676.10 -676 371 Noy 4287 0.099 4244 42.44 315.76 -316 322 Dec 4287 0081 35.58 35.58 264 T3 -265 Total- 0 0.00 0.0 428.7 2.17 1229.94 1229.94 313 Jan 4287 0.085 36.44 36.44 27111 -271 373 Feb 428.7 0.11 45.87 4587 34128 -341 374 March 428.7 0.13 5702 57.02 42421 -424 375 Apd 4287 023 99.89 99.09 743.16 443 376 May 4767 030 12904 12904 960.05 -960 377 June 4287 044 188.63 188.63 1403.39 -1403 318 July _ 428.7 0463 196.49 198.49 1476.75 -1477 379 Aug 4287 0403 112.77 172.71 1265.36 -1205 380 Sept 428 7 0.310 132.90 132.90 988-75 -989 301 Ocl 4287 0.212 90.88 9088 676.16 476 382 Noy 4281 0.099 4244 4244 315.76 -316 383 Dec __ _ 428.7 0 083 35.58 _ 3558 264 73 -265 Total- 0 0.00 00 4287 I.07 1229.94 1229.94 r71000043/ Prepared By TNA Checked By:BAC SP/SPExIntat G Summary/Summary Table AMEC Earth 8 E owonmental.Inc Page 656 Certification Authorization to Discharge under the CDPS Industrial General Permit for Sand and Gravel Mining and Processing General Permit (CDPS Permit) Ft Lupton Pit DMG//1 Permit Page 19 of 81 CDMG Permit No.M-00-01( Page t CERTIFICATION AUTHORIZATION TO DISCHARGE UNDER THE • • CDPS INDUSTRIAL GENERAL PERMIT FOR SAND AND GRAVEL MINING AND PROCESSING GENERAL PERMIT Category 07,Sub-category IA-Genera!Permits,Sand and Gravel-Process Water&Stormwater SIC Code 1442,Sand and gravel mining,washing, crushing screening and stockpiling. Current fee$I93/year(effective July1,2002) This permit specifically authorizes:Lafarge West,Inc. Bob Cartme!, Vice President 1590 West I,2`'Avenue Denver, CO 80204 (303)+657-4000 FAX: (303)+657-4339 with the facility contact of- Phillip Courtney, Environmental Engineer (303)+657-4118 to discharge from facilities identified as the Riverbend Pit,located in the NW V.and the SW%ofSection 19, TIN,R66W, Weld County,as show, in Figure 1 of the permit,from outfall001-010, as shown in Figure 2 of the permit andfurther identified and described in the following table Outfall Description and Treatment Estimated Flow Rate li z Mine dewatering discharge from the settling basin prior to entering t h 001-004 e Avg. = 1.44 MGD McCann Seep. 005-010 Mine dewatering discharge from the settling basin prior to entering the Avg. = 1.44 MGD South Platte River. 'ischarge is to either McCann Seep of the South Platte River. The discharge to McCann Seep is within Segment 16c and the discharge t tBe.&uth Platte River is within Segment 15,both of the Upper South Platte Sub-basin,South Platte River Basin,found in the Classifications an is Standards for the South Platte River Basin (5 CCR 1002-38), effective January 30, 2002. Both Segment 15 and 16c have bee o.,-.6nated Use Protected and classified for the following uses: Recreation, Class la;Aquatic Life, Class 2(Warm);Agriculture. Salinity(TDS)monitoring of the discharge will not be required. Phosphorus monitoring of the discharge will not be required. Antidegradation review does not apply to this permit. At the time of application,the permittee certified that they had developed and implemented a Stormwater Management Plan(SWMP)for th. facility. As a condition of this permit, a copy of the SWMP must be provided to the Division upon request. The permittee is encouraged to read the general rationale for an understanding of how this permit was developed and read the permit to st what requirements exist. In the permit,effluent limitations and monitoring/reporting requirements are specified in Parts LB. and LC:sped( notification requirements for effluent violations are addressed in Part ILA. All correspondence relative to this facility should reference the specific facility number, COG-500416. Effective OCTOBER 1, 2002 Expires SEPTEMBER 30, 2007 Karen Your November 13. 20( TI'—.C cility permit contains 25 pages. IREDUCED neon NC no MRCOWDIORE Oral CONAN."Ms=ORV•ct Rs CASE Q CORFU= - Hilo_ F . _.��1 ";i co— N i / 1 ini I • I I , i ." ±c4t I /' � . � .DO• % I:- �/o I 1 1 /•;; ':!1.; 0'5, 11x1'`/`0:�� I / / / 4/1: ,I / '__ II ffi- •assact, 61: "1 I I 1111 . \ I \\ I;•;I ..,, c \\ NN I � \ � I / I � �j.) IJ , iai I !yam 1 'i�>� a L 1----. ! I V i ;�14 x, 11 I . -- --- - —— / .\1 ,„4‘4\_ , )I � 1 ::---=':1 0 -� , �,Y7 //; ' '1,/ 00 11. .1 = • 11 ,1 ' _ _., •f-- \\ I • I 1 I\ 7 — �1 ° I ;1 _ _ I \ _ / I ^i' ' I -'11"'" FIGURE 2 RIVERBEND PIT _ _ _ " -- - --- - - - SAND AND GRAVEL OPERATION 2 YUEIEE PRE-RD[ PRE YIRIRDA COG-500416 4 CORCRETL.IRC•HIWo4nn •' oI W ASOE CORE ono... PAGE 26 ` m. DENVER CO.RD321 1 S R67W R66W ,-° _ - t �� I • i am N• • '� -7 . g Well T i N i • / SITE '- ,: II I PI. ' Znd pendenee , j J•49,6 - If r • Well - _ t W.C.R. 6 - � , , Water cyc t i e ' Tank I • F 1 o„e R � ' SOURCE OF INFORMATION: U.S-G.S. FORT LUPTON 7.5 MINUTE QUADRANGLE 1000 500 0 1000 L. =n 1 SCALE IN FEET am av9s VICINITY M FIGURE 1 .....2.4"•- 99-ua MOBILE PRE-MIX CONCRETE, INC.,A SUBSIB RIVERBEND PIT "" "" SAND AND GRAVEL OPERATION OF LAFARGE, CORP. COG-S00416 "- �.o-. RIVERBEND OPERATION PAGE 25 CDPS GENERAL PERMIT • FOR SAND AND GRAVEL MINING AND PROCESSING (AND OTHER NONMETALLIC MINERALS EXCEPT FUEL) AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM compliance with the provisions of the Colorado Water Quality Control Act,(25-8-101 et seq.,CRS,1973 as amended)and the Federal Water Pollution mtrol Act, as amended (33 U.S.C. 1251 et seq.;the"Act"),this permit authorizes the discharge of process water and stomrwater associated with erations engaged in mining and processing of sand and gravel (including rock and stone used as aggregate), and mining and quarrying of other nmetallic minerals except fuels,certified under this permit,from those locations sp.,.,ified throughout the State of Colorado to specified waters of the de. Such discharges shall be in accordance with the conditions of this permit. is permit specifically authorizes the facility listed on page 1 of this permit to discharge process water and/or stonnwater associated with operations gaged in mining and processing of sand and gravel(including rock and stone used as aggregate),and mining and quarrying of other nonmetallic nerals except fuels, as of this date, in accordance with the permit requirements and conditions set forth in Parts I and II hereof. All discharges horized herein shall be consistent with the terms and conditions of this permit y party may demand an adjudicatory hearing within thirty(30) days of the issuance of this general permit determination,per the Colorado ;charge Permit System Regulations,Regulation No.61 (5 CCR 1002-61), Should the applicant choose to contest any of the effluent limitations,' nitoring requirements or other conditions contained herein,the applicant must comply with Section 24-4-104 CRS and the Colorado Discharge t.System Regulations. Failure to contest any such effluent limitation,monitoring requirement,or other condition,constitutes consent to the )n by the Applicant However,an adjudicatory hearing may not be requested for a certification issued pursuant to this permit. s permit and the authorization to discharge shall expire at midnight,September 30,2007. led and Signed this 30th day of August,2002 LORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT At avid Holm,Director •er Quality Control Division ?S GENERAL PERMIT-SAND AND GRAVEL TE SIGNED: AUGUST 30,2002 FECTIVE DATE OF PERMIT: OCTOBER 1,2002 PART COVERAGE UNDER THIS PERMfL-_--.-----._._.�_._---'—.--_-__-..-.''- -.3 '-'--"-"---.'_..""'--------------------3 2_ Dredge and Fill Operations __""---'-'"-"--- • 3_ Application Requirements. . 3 4. Application Due Data __._-_.".'_'......-.._....___.__ `-_-...-_.-.__...._ 3 5. Certification Procedures .._.._ _ _ _.._...._._..._.._____ ___ 6_ Permit Certification,Applicable So.tiu.0 --_.'_-_......__.._..__......_.....__.._---_...:_ ....--- 4 7_ Permit Expiration Date _._. EFFLUENT LIMITATIONS AND CONDITIONS-PROCESS WATER DISCHARGE..'.-..__..'...._.._._._.._.._._..---.-._-..--'-'--'--'--_.-'--.. 5 1. General Limitations �., 5 2. Industry-Specific Numeric Limitations------`--`----..._..."--""""-"-__.__.___'-'"'-"'-""-"---"'._"'---'----'"---"-'""--"-'-`--- 5 4. Flow Measuring Device - -._. 6 EFFLUENT LIMITATIONS AND CONDITIONS-STORMWATER DISCHARGE .._..._-_._.__'-._.._._.._..... 6 I. General Limitations --...._._.......'__"....._. 2_ Stormwater Management Plan(SWMP) _.--._..........-......._. .._ 7 3_ Facility Inspations.._ _ _ g 4. Additional SWMP Requirementt.._..._....____.__._......_..___.__._.._....___.._:_ _...._..._.� 8 5_ SWMP Availability _-.. 9 6. SWMP Deadlines,Certification _....._._._..._....._.__...__-- 9 7. Prohibition of Non-stormwata Discharges..._..................__----.-'-_......._......_._......_---...._...._..,-'_.-.._.__...__....__....___..._......... 9 8. Record keeping and Internal Reporting Procedures 9 9. Employee Education ....___.....--._._......._._._ 9 MONITORING AND REPORTING -`. 9 I. Representative Sampling — 9. 2_ Sampling-Stormwater 10 3. Repotting of Data-Process Water Dischargers 1.0 4. Reporting of Data-Stormwater Dischargers 10 5. Test Procedures 10 6. Additional Monitoring by Perminee._._ 10 7. Reporting to Municipality 11 8. Special Monitoring - 11 9. Signatory Requirements 11 )EFIMIIONS 11 GENERAL REQUIREMENTS 12 1. Representative Sampling _. 12 2. Analytical and Sampling Methods for Monitoring 12 3. Records 12 PART 11 MANAGEMENT REQUIREMENTS 13 L Change in Discharge 13 2. Special Notifications-Definitions 13 3. Noncompliance Notification 13 4. Submission of Incorrect or Incomplete Information 14 5_ Bypass 14 6_ Bypass Notification 14 7. Upset 14 8. Removed Substances 15 9. Minimization of Adverse Impact 15 10. Discharge Point 15 11. Reduction,Loss,or Failure of Treatment Facility 15 12. Proper Operation and Maintenance 15 RESPONSIBILITIES 15 I. Inspections and Right to Entry 15 2. Duty to Provide Information 16 3- Transfer of Ownership or Control 16 4. Availability of Reports 16 5. Modification,Suspension,or Revocation of Permits By the Division 16 6- Oil and Hazardous Substance Liability 19 7. State Laws 19 8- Permit Violations 19 9. Property Right 19 10. Severability 19 11. Renewal Application 19 12. Confidentiality 19 x.13- Fees 20 1. Requiring an Individual Cl)PS Permit 20 .5- Requesting an Individual CDPS Permit 20 16_ Requesting Coverage Under the General Permit - 20 3 Permit No.C0G-s00000 PARTI COVERAGE UNDER THIS PERMIT 1. Industries Covered • Under this general permit,the following types of facilities may be granted authorization to discharge treated process-generated wastewaters and/or stormwater runoff into waters of the state of Colorado: Facilities engaged in the mining and processing of sand and gravel(including rock or stone used as aggregate),and mining and quarrying of other nonmetallic minerals(except fuels or graphite),as described by the Standard Industrial Classification(SIC)Code 14,and asphalt and concrete batch plants located at facilities covered under this permit. a. Stormwater vs.Process water: When stormwater mixes with process water,the process water limitations(Part IB of the pemrit)apply to the discharge of that mixed water. Process waters from these facilities are subject to effluent limitations. under 40 CFR 436. b. Process Water. For purposes of this permit,process generated wastewaters include: - 1) Product wash waters; 2) Maintenance/equipment wash waters; 3) Transport waters; 4) Scrubber waters(crushers or classifiers); 5) Mine dewatering(groundwater and/or runoff); 6) Other process water as determined by the permit issuing authority; 7) Stormwater runoff from mine or processing areas;and 8) Stormwater runoff,which mixes with process,generated wastewater before sampling. - c. Stormwater: The stormwater section(Part I.C of the permit)is intended to cover stormwater runoff from those portions ofa nonmetallic minerals production operation that are not subject to effluent limitations under 40 CFR 436. 2. Dredge and Fill Operations This permit does not constitute authorization under 33 U.S.C. 1344(Section 404 of the Clean Water Act)of any stream dredging or filling operations. 3. Application Requirements In order to be considered eligible for authorization to discharge under the terms and conditions of this permit,the owner,operator, and/or authorized agent of any facility desiring to discharge must submit,by letter or hand delivery,two copies of the discharge application form, available from the Water Quality Control Division (the "Division"), which generally requires the following information: a. Name,address,and descriptive location of the facility; b. Name of principal in charge of operation of the facility; c. Name of water receiving the discharge; d. Description of the type of activity resulting in the discharge including the anticipated duration of activity and/or the discharge,anticipated volume,and rate of discharge,and the source of water which is to be discharged; e. Description of any waste water treatment system and recycle/reuse utilized; f. A map or schematic diagram showing the general area and/or routing of the activity; g- Analysis of the process water to be discharged; h. Description of stormwater discharges,including drainage area; i. Description of present and proposed best management practices at site,including map; j. Any existing water quality data on stormwater discharges;and k Certification as to the preparation of a Stormwater Management Plan. 4. Application Due Dates At least thirty days before the anticipated date of discharge,the owner(or operator if the owner does not operate the facility)of the facility shall submit an application as provided by the Division rage Permit No COGS000oo •. EFFLUENT LIMITATIONS AND CONDITIONS-PROCESS WA 1'ER DISCHARGE C"`- --lion(I.B)only applies to facilities with a discharge of process water.) 1. General Limitations a. There shall be no discharge of sanitary wastewaters from toilets or related facilities. b. There shall be no discharge of floating solids or visible foam c. No chemicals are to be added to the discharge unless the permit issuing authority grants permission for the use of a specific chemical. In granting the use of such chemicals,additional limitations and monitoring requu..trauts may be imposed. d. Bulk storage structures for petroleum products and other chemicals shall have adequate protection to prevent any reasonable loss of the material from entering discharged waters or waters of the State. 2. Industry-Specific Numeric Limitations Beginning October 1,2002 and lasting through September 30,2007,the permittee is authorized to discharge from the process water outfalls,under the industrial category below,as identified in their permit certification. In accordance with the Water Quality Control Commission Regulations for Effluent Limitations,Regulation 62,5 C.C.R. 1002-62 and State Discharge Permit System Regulations, Section 61.8 (2), 5 C.C.R. 1002-61,the permitted discharge shall not contain effluent parameter concentrations,which exceed the following limitations: a. Mineral mining and processing point source category-40 CFR 436-subpart B(crushed stone),C(construction sand and gravel), R (phosphate rock) - and all other industrial facilities covered under SIC Code 14, (except graphite and those facilities specifically listed in paragraph c,below), and concrete and asphalt batch plants located at any facility otherwise covered by this general permit: - At err •u ,a k z ♦_� �$s tv� tiS of`. ` "'�. 9�-.� � t V;Tl �+ .I low,MGD - y asx3 Report NA Report H,su. (minimum-maximum) NA NA 6.5-9.0 'otal Suspended Solids,mg/1 30 45 NA )il&Grease,mg/1 NA 45 NA 10 'otal Dissolved Solids,mg/I * NA NA Report 'otal Phosphorus(as P)mg/I - port NA NA Report Applicable to waters of the Colorado River Basin Only.See I.D.B.a Applicable to waters listed in I.D.8.b- oeral mining and processing point source category-40 CPR 436-subpart AL(graphite): this permit does not cover the discharge of process ;tewater from graphite mines. (See Section V.A2.d of the Rationale.) b. Mineral mining and processing point source category-40 CFR 436-subpart D(industrial sand)(except for process-generated wastewater from facilities employing HF floatation): ow,MGD Re port NA Report I, su. (minimum-maximum) NA NA 6.5-9.0 'uspended Solids,mg/1 25 N 45 NA ease,mg/I NA NA 10 )t2• "ssolved Solids, mg/I • NA >, isphorus(as P)mg/I •• NA Report NA NA Applicable to waters of the Colorado River Basin Only See LD.8.a. Report Applicable to waters listed in I-ass. r aunt no.aunt-310000 C. EFFLUENT LIMITATIONS AND CONDITIONS-STORMWATER DISCHARGE(continued) - -._2_ Stormwater Management Plan(SWMP) A Stomnwater Management Plan(SWMP)shall be developed for each facility covered by this section(Part LC). The SWMP shall be prepared in accordance with good engineering practices. (A registered engineer need not complete the plan.) The plan shall identify potential sources ofpollution(including sediment),which may reasonably be expected to affect the quality of stormwater discharges associated with the mining activity. In addition,the plan shall describe and ensure the implementation ofbest management practices(BMPs),which will be used to reduce the pollutants in stormwater discharges,associated with mining activity- SWMPs that were prepared in accordance with requirements in the previous version of the permit need not be amended to conform to the SWMP format in this permit. The permittee must implement the provisions of SWMP required under this part as a condition of this permit The SWMP shall include the following items,at a minir nmi- a. Site Map - The plan shall provide a site map or maps,which indicate at a minimum: • Mining site boundaries • - Access and haul roads Stomrwater outfalls and an outline of the drainage area of each stormwater outfall An estimate of the direction of flow Materials handling areas - Each existing structuaal control measure to reduce pollutants in stormwater runoff - Areas used for storage or disposal of overburden,materials,soils or wastes - Areas used for mineral milling and processing - Springs,streams,wetlands and other surface waters - Location of mine drainage or any other process water - Boundary of tributary area that is subject to effluent limitations - Date the map was prepared b. Description of Potential Pollutant Sources/Material Inventory The plan shall provide a description of all potential sources(activities and materials)which may reasonably be expected to add pollutants to stormwater discharges. Such sources may include haul roads,equipment storage and maintenance areas, fuel storage areas,etc. In each case where stormwater pollution potential exists,appropriate preventive measures must be taken and documented. c. Stormwater Quality Controls Each mining site covered by this permit shall develop a description of stormwater quality controls appropriate for that site, and implement such controls. The appropriateness and priorities of controls in the plan shall reflect identified potential sources of pollutants at the site. The description of stormwater quality controls shall address the following minimum components,including a schedule for implementing such controls: 1) SWMP Administrator-The SWMP shall identify a specific individual or individuals within the mining organization who is responsible for developing the SWMP and assisting the mine operator in its implementation,maintenance,and revision. 2) Materials Handling and Spill Prevention- Where materials can impact stormwater runoff,BMPs that reduce the potential for contamination shall be described. For example,materials should be stored and handled in covered areas whenever possible to prevent contact with stormwater; fuels and other chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff. 3) Erosion and Sediment Controls-Describe BMPs that will be used to reduce erosion and prevent sediment delivery to State waters. These should include structural(such as silt fences,sediment ponds,drop structures,check dams)and non-structural(such as mulching and revegetation)methods. - -- , C. EFFLUENT LIMITATIONS AND CONDITIONS-STORMWATER DISCHARGE E(continued) • 5. SWMP Availability A copy of the SWMP shall be provided to the Division,the Colorado Division ofMinehls and Geology(CDMG);and/or to EPA upon request,and within the period specified in the request. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b)of tbe CWA. The owner or operator of a facility with stormwater discharges covered by this permit shall make plans available to members of the public upon request However, the permittee may claim any portion'of a stormwater pollution plan as confidential in accordance with Section 308 of the Federal Clean Water Act and Regulations for the State Discharge Permit System 61.5(4).• 6. SWMP Preparation and Implementation The SWMP shall be prepared prior to applying for coverage under the general permit, and certification of completion submitted with the application. Also,the SWMP shall be implemented when the facility begins operations, or when the general permit certification is issued,whichever is later,and updated as appropriate. 7. Prohibition of Non-Stonnwater Discharges a. Except as provided in paragraph b,below,all discharges authorized by Part I.C.of the permit shall be composed entirely of stormwater. Discharges of material other than stormwater must be addressed in Part I.B. or in a separate CDPS permit issued for that discharge. b. Discharges from the following sources that are combined with stormwater discharges associated with mining activity may be authorized by this permit, provided that the non-stormwater component of the discharge is identified in the SWMP (see Part I.C.2.c.4 of the permit): fire fighting activities,uncontaminated compressor condensate, irrigation drainage,lawn watering,air conditioner condensate,uncontaminated seeps and springs,and foundation or footing drains where flows are not contaminated. Z. Record keeping and Internal Reporting Procedures • - The permittee shall identify procedures for record keeping and internal reporting. 9. Employee Education The permittee shall develop and implement employee education programs to inform personnel at all levels of responsibility of the components and goals of the SWMP. Education should address topics such as spill response,good housekeeping, and material management practices. The permittee shall identify periodic dates for such instruction. t. MONITORING AND REPORTING 1. Representative Sampling Samples and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge. Failure to submit the reports as required in either Part I D3 or LD.4 shall constitute a violation of the permit and may constitute grounds for revocation of the permittee's authority to discharge under the permit 2. Sampling-Stormwater Sampling and testing of stomiwater for specific parameters under Part I.C is not required on a routine basis under this permit However,the Division reserves the right to require sampling and testing beyond this,on a case-by-case basis,at any facility covered by this permit, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. rata,rvu_l:vri-vrlppp D. MONITORING AND REPORTING(continued) - 7- Reporting to Municipality Any permitted facility discharging to a municipal storm sewer shall provide the municipality with a copy of the permit application, upon request A copy of the SWMP shall also be provided to the municipality upon request 8. Special Monitoring a. TDS monitoring is only required for facilities discharging in the Colorado River Basin- TDS maybe measured as electrical conductivity where a satisfactory con-elation with TDS has been established based upon a minimum of five(5)samples. See the individual Certification Rationale for a determination as to whether monitoring is required. b. Phosphorus monitoring is required only for facilities which discharge into the following drainage basins: Cherry Creek basin,Chatfield Reservoir downstream of the USGS gage at Waterton and on Plum Creek,Dillon Reservoir basin(i.e.,Ten Mile Creek, Snake River,Blue River,all tributaries to the Dillon Reservoir), and Bear Creek bat See the individual Certification Rationale for determination as to whether monitoring is required. 9. Signatory Requirements a. All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the following criteria: 1) In the case of corporations,by a principal executive officer of at least the level of vice-president or his or her duly authorized representative,if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; 2) In the case of a partnership,by a general partner; 3) In the case of a sole proprietorship,by the proprietor; 4) In the case of a municipal, state, or other public facility, by either a principal executive officer,ranking elected official,or other duly authorized employee. b. Changes to authorization If an authorization under paragraph a)of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together with any reports, information,or applications to be signed by an authorized representative. c. Certification. Any person signing a document under paragraph a)of this section(except for the SWMP certification)shall make the following certification: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is,to the best of my knowledge and belief,true,accurate,and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." DEFINITIONS A "continuous"measurement,for flow monitoring requirements,is a measurement obtained from an automatic recording device, which continually measures flow. 2. A "grab"sample,for monitoring requirements, is a single "dip and take"sample. 3- An"in-situ"measurement,for monitoring requirements,is defined as a single reading,observation,or measurement taken in the field at the point of discharge. An"instantaneous"measurement,for monitoring requirements,is a single reading,observation,or measurement performed on site. • PART II f ,,MANAGEMENT REQUuwtfl JTS • I. Change in Discharge The permittee shall inform the Division(Permits Unit)in writing of any intent to construct,install,or alter any process,facility,or activity that is likely to result in a new or altered discharge of process water,and shall finish the Division such plans and specifications which the Division d&Lums reasonably necessary to evaluate the effect on the discharge and receiving stream The permittee shall submit this notice within two(2)weeks after making a determination to perform the type of activity referred to in the preceding paragraph Process modifications include,but are not limited to,theintroduction of any new pollutant not previously identified in the permit,or any other modifications,which may result in a discharge of a quantity or quality different from that,which was evaluated in the drafting of the permit including subsequent amendments. Following such notice,the permittee shall be required to submit a new CDPS application,and maybe required to be covered under an individual permit to specify and limit any pollutants not previously limited,if the new or altered discharge might be inconsistent with the conditions of the general permit In no case shall the permittee implement such change without first notifying the Division. 2. Special Notifications-Definitions a. Bypass: The intentional diversion of waste streams fiom any portion of a treatment facility. b. Severe.Property Damage: Substantial physical damage to property at the treatment facilities which causes them to become inoperable,or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. It does not mean economic loss caused by delays in production. c. Spill: An unintentional release of solid or liquid material,which may cause pollution of state waters. d. Upset An exceptional incident in which there is unintentional and temporarynoncompliance with permit effluent limitations because of factors beyond the reasonable control of the perrnttee. An upset does not include noncompliance to the extent __. caused by operational error, improperly designed treatment facilities,inadequate treatment facilities,lack of preventative maintenance,or careless or improper operation. 3. Noncompliance Notification a. If,for any reason,the pennittee does not comply with or will be unable to comply with any discharge limitations or standards specified in this pennit,the permninee shall, at a minimum,provide the Water Quality Control Division and EPA with the following information: 1) A description of the discharge and cause of noncompliance; 2) The period of noncompliance,including exact dates and times and/or the anticipated time when the discharge will return to compliance;and 3) Steps being taken to reduce,eliminate, and prevent recurrence of the noncomplying discharge. b. The permittee shall report the following instances of noncompliance orally within twenty-four(24)hours from the time the permittee becomes aware of the noncompliance, and shall mail to the Division a written report within five(5) days after becoming aware of the noncompliance: 1) Any instance of noncompliance,which may endanger health or the environment; 2) Any unanticipated bypass,which exceeds effluent limitations; 3) Any upset which causes an exceedance of any effluent limitation in the permit; 4) Any spill which causes any effluent limitation to be violated; it MANAGEMENT REQUIREMENTS z:7. Upsets(continued) - - • 4) The permittee complied with any remedial measures required under Section 1223(d)Of the federal regulations;and 5) The permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit,which has a reasonable hiehlood of adversely affecting human health or the environment.. 6) In addition to the demonstration required above,a pemrittee who wishes to establish the affirmative defense ofupset for a violation of effluent limitations based on water quality standards shall also demonstrate through monitoring, modeling,or other methods that the relevant standards were achieved in the receiving water. c. Burden of Proof In any enforcement proceeding,the permittee seeking to establish the occurrence of an upset has the burden of proof. 8. Removed Substances Solids,sludges,or other pollutants removed in the course of treatment or control of wastewaters shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. 9. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from any discharge. As necessary,accelerated or additional monitoring to determine the nature and impact of the noncomplying discharge is required. 10. Discharge Point Any discharge to the waters of the State from a point source other than specifically authorized by this permit is prohibited. Reduction,Loss,or Failure of Treatment Facility The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the effluent limitations of the permit Upon reduction,loss,or failure of the treatment facility,the permittee shall,to the extent necessary to maintain compliance with its permit, control production,or all discharges,or both until the facility is restored or an alternative method of treatment is provided_ This provision for example, applies to power failures, unless an alternative power source sufficient to operate the wastewater control facilities is provided. It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit 12. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance,adequate funding,adequate operator staffing and training,and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve compliance with the conditions of the permit RESPONSIBILITIES 1. Inspections and Right to Entry The permittee shall allow access to the Director of the Division, the EPA Regional Administrator, and/or their authorized representative, upon the presentation of credentials. In the making of such inspections, investigations, and determinations, the Division, in so far as practicable, may designate as its authorized representatives any qualified personnel of the Department of Agriculture- The Division may also request assistance from any other state or local agency or institution. r u um rvn a.ana�tl{){it)V B. RESPONSIBILITIES 5. Modification,Suspension,or Revocation of Permits By the Division(continued) 2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or denial of a permit or to the establishment of terms or conditions of the permit; 3) Materially false or inaccurate statements or information in the application for the permit 4) A determination that the permitted activity endangers human health or the classified or existing uses of State Waters and can only be regulated to acceptable levels by permit modifications or termination. b. This permit,or certification under this permit,may be modified in whole or in part due to a change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge,such as: 1) There are material and substantial alterations or additions to the permitted facility or activity which occurred after permit issuance which justify the application of permit conditions that are different or absent in the existing permit; 2) The Division has received new information, which was not available at the time of permit issuance(other than revised regulations,guidance,or test methods),and which would have justified the application of different permit conditions at the time of issuance. For permits issued to new sources or new dischargers, this cause includes information derived from effluent testing required under Section 61.4(7)of the Regulations for the State Discharge Permit System. This provision allows a modification of the permit to include conditions that are less stringent than the existing permit only to the extent allowed under Section 61.10 of the Regulations for the State Discharge Permit System; 3) The standards or regulations on which the permit was based have been changed by promulgation of amended standards or regulations or by judicial decision after the permit was issued. Permits may be modified during their terms for this cause only as follows: (a) The permit condition requested to be modified was based on a promulgated effluent limitation guideline, EPA approved water quality standard,or an effluent limitation set forth in 5 CCR 1002-62,Regulation 62 et seq.;and (b) EPA has revised, withdrawn,or modified that portion of the regulation or effluent limitation guideline on which the permit condition was based,or has approved a Commission action with respect to the water quality standard or effluent limitation on which the permit condition was based;and (c) The permittee requests modification after the notice of final action by which the EPA effluent limitation guideline,water quality standard,or effluent limitation is revised,withdrawn,or modified;or (d) For judicial decisions, a court of competent jurisdiction has remanded and stayed EPA promulgated regulations or effluent limitation guidelines,if the remand and stay concern that portion of the regulations or guidelines on which the permit condition was based and a request is filed by the permittee in accordance with this Regulation,within ninety(90)days of judicial remand. 4) The Division determines that good cause exists to modify a permit condition because of events over which the permittee has no control and for which there is no reasonable available remedy; 5) The permittee has received a variance; 6) When required to incorporate applicable toxic effluent limitation or standards adopted pursuant to ' 307(a)of the Federal act; 7) When required by the reopener conditions in the permit; 8) As necessary under 40 C.F.R. 4018(e), to include a compliance schedule for the development of a pretreatment program; - Permit Na COG.SOpppp B. RESPONSIBILITIES 5. Modification,Suspension,or Revocation of Permits By the Division(continued) • 5) Changing the construction schedule for a discharger which is a new source, but no such change shall affect a discharger's obligation to have all pollution control equipment installed and in operation prior to discharge;or 6) Deleting a point source outfall when the discharge from that outfall is terminated and does not result in discharge of pollutants from other outfalls except in accordance with permit limits;or g. When a permit is modified,only the conditions subject to modification are reopened. If a permit is revoked and reissued, the entire permit is reopened and subject to revision and the permit is reissued for a new term. h. The filing of a request by the permittee for a permit modification,revocation and reissuance or termination does not stay any permit condition. 6. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities,liabilities,or penalties to which the permittee is or may be subject to under Section 311 (Oil and Hazardous Substance Liability)of the Clean Water Act. 7. State Laws Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities,liabilities,or penalties established pursuant to any applicable State law or regulation under authority granted by Section 510 of the Clean Water Act. • 8. Permit Violations Failure to comply with any teens and/or conditions of this permit shall be a violation of this permit. 9. Property Rights The issuance of this permit does not convey any property or water rights in either real or personal property,or stream flows,or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal,State or local laws or regulations. 10. Severability The provisions of this permit are severable. If any provisions of this permit,or the application of any provision of this permit to any circumstance,are held invalid,the application of such provision to other circumstances and the application of the remainder of this permit shall not be affected. 1 I. Renewal Application If the permittee desires to continue to discharge,a permit renewal application shall be submitted at least one hundred eighty (180) days before this permit expires or ninety(90)days before the permit expires for certifications that do not indicate that Part I.B of the permit must be followed(e.g.,the certification is for stonnwater discharges only). if the permittee anticipates there will be no discharge after the expiration date of this permit, the Division should be promptly notified so that it can terminate the certification in accordance with Part H.B_5. 12. Confidentiality Any information relating to any secret process,method of manufacture or production,or sales or marketing data which has been declared confidential by the permittee, and which may be acquired, ascertained, or discovered, whether in any sampling investigation,emergency investigation,or otherwise,shall not be publicly disclosed by any member,officer,or employee of the Commission or the Division,but shall be kept confidential. Any person seeking to invoke the protection of this Subsection shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. RATIONALE SAND AND GRAVEL PRODUCTION OPERATIONS (AND OTHER NONMETALLIC MINERALS EXCEPT FUEL) GENERAL PERMIT IN COLORADO COLORADO DISCHARGE PERMIT NUMBER COG-500000 FOURTH RENEWAL CONTENTS PAGE - I. UPDATE I II. STORMWATER PROGRAM - I III. COVERAGE UNDER THIS PERMIT 2 DC CERTIFICATION 2 V. TERMS AND CONDITIONS OF PERMIT - 2 VI. REPORTING REQUIREMENTS 4 VII. PUBLICNOTICE CHANGES 4 L UPDATE This is for the renewal ofthe general sand and gravel permit first issued on October 28, 1982,with reissuances on June 10,1987,August 31, 1992,and August 31, 1997. The General Permit system for regulating sand and gravel production operations has worked well for the State of Colorado. The following minor changes have been made to the permit and Rationale during renewal: A. Small Municipality Exemption: The Rationale discussion on thestormwaterpermittingEzemptionsfor Small Municipalities (Section IILB) has been changed to include the March 10, 2003 deadline for permit coverage for municipally owned industries. This did not involve any changes to the permit. B. Reapplication: Authorization to discharge under this general permit will expire on September 30,2007.For certifications covering stormwater discharges only(i.e., the permittee's individual certification does not indicate that Pan 1.B of the permit must befollowed),the deadline for reapplication for continued coverage under the general permit has been changed to ninety-days prior to permit expiration, or June 30,2007. The due date for permittees certified to discharge stormwater and process water will remain as 180 days before permit expiration, or March 31,2007. C A paragraph was included in the introductory page explaining the right of any party to an adjudicatory hearing contesting the renewal of this general permit,as per the Colorado Discharge Permit System Regulations,Regulation No. 61, (5 CCR 1002-61). Note that this does not provide for an adjudicatory hearing for a certification issued under this general permit. D. Impacted Stream Segments:For this general permit,any existing or new operation that discharges to a segment that is listed on the Division's 303(d) list of impacted stream segments may require an individual permit. The 303(d) segments are segments in which water quality standards for one or more pollutants are exceeded. For most,ifnot all,of the operations that discharge under this permit, there are no monitoringdata to verify the expectation that these discharges will not impact a listed segment Therefore,for those facilities that discharge process water to segments on the 303(d)list, the permittees will be required to perform a one-time analysis upon commencement ofdischarge for the listed parameters of concern to confirm that stream standards for these parameters are not exceeded in the discharge concentrations_ Where the receiving water is included on the state's 303(d)list,total maximum daily loads(TMDLs)are being developed in accordance with the Division's schedule for TMDL completion. Once a TMDL has been established, if it is necessary to incorporate limitations for a facility certified under this general permit which are based upon the outcomes of the TMDL or the results of the one-time analysis,an individual permit may be written to regulate dischargesfrom this faciliry. Thefacility would continue to be covered under this general permit certification until the individual permit is issued. STORMWA TER PROGRAM As required under the Clean Water Act amendments of 1987,the Environmental Protection Agency(EPA)has established a framework for regulating municipal and industrial stormwater discharges. This framework is under the National Pollutant Discharge Elimination — System(NPDES)program. The regulations(40 CFR 122.26)require specific types of industrial facilities which discharge stormwater associated with industrial activity(industrial stormwater), to obtain coverage for this discharge under an NPDES permit Facilities which discharge industrial stormwater either directly to surface waters or indirectly,through municipal separate storm sewers,must be covered by a permit. V TERMS AND CONDITIONS OF PERMIT A. Process Water Discharges 1. Numeric Limitations: Numeric limits will be applied for some of the industrial categories covered by this permit These limits are from the EPA Federal Guidelines for the applicable point source category,as follows: a. Mineral mining andprocessing pointiource category- 40 CFR 436-subpartB(crushedstone),C(construction sand and gravel), R (phosphate rock) - and all other industrial facilities covered under SIC Code 14, except those specifically listed in paragraph b below, and concrete and asphalt batch plants located at any facility otherwise covered by this general permit: Table Kl—Effluent Limits Parameter Limit Rationale Flow,MGD Report a/ NA 7x5 mg/I 30/45 b/ State Effluent Regulations pH,s.u. 6.5-9.0 c/ Water Oil and Grease,mg/I State Effluent Regulations 10 Quality Standards Total Dissolved Solids,mg/1 Report Total Phosphorus(as P), mg/ . Report � Sariousty osphr Regulations R e Po d/e/ Various Phosphorus Regulations Mineral mining and processing point source category-.40 CFR 436-subpart AL(graphite): The discharge ofprocess wastewaterfrom graphite mines is not covered by this permit. (See Section V.A.2.d of the Rationale) b. Mineral mining and processing point source category- 40 CFR 436-subpanD(industrial sand)(exceptfor process- generated wastewater from facilities employing HFfloatation): Table V-2—Effluent Limits s .ter Limit Rationale 7t 4GD Report a/ NA r rn 25/45 b/ r}, 1 Best Practicable Technology 6.5-9.0 ci Water Quality Standards 711 and Grease, mg/! 10 d/ State Effluent Regulations rota/Dissolved Solids, mg/ Report rota/Phosphorus(as P), mgq Report dieiff Salinity Phosphorus Rhos ho us P die/ Various PhosphorusRegulations / 30-Day Average/Daily Maximum d/ Daily Maximum I 30-Day Average/7-Day Average e/ See VA.2.c. / Minimum-Maximum if See VA.1.b.- c. No process water discharge will be covered under this permit or authorized by certification for discharges with the mineral mining and processing point source category of 40 CFR 436-subparts E(gypsum),F(asphaltic mineral),G(asbestos and wollastonite), J (bathe), K (fluorspar), L (salines from brine lakes), M (borax), N (potash), O (sodium sulfate), V (bentonite), W(magnesite),X(diatomite), Y(jade), Z(novaculite), and AF(tnpoli). 2. Discussion ofLimitaaons: a. Exceptions to Federal Limits: The 40 CFR 436 includes some effluent limitations, which are not as strict as, those listed here. For example,the phosphate rock TSS limit is less strict,and for many of the subcategories,which state"no discharge ofprocess wastewater,"an exemption to that limit is provided during certain precipitation events and in conjunction with other conditions. However,this permit does not include these relaxed limits. This is a general permit,designed to cover the widest possible range offacilities with similar wastewater characteristics. In effectively achieving this broad coverage,the permit must also be relatively simple. Therefore,some of the more individualistic or complex permit limitations are not included in this permit_ The Division does not believe that there are a sufficiently large number of such facilities in Colorado to warrant including the exemptions in this general permit. 'fa permittee wishes to take advantage of these exemptions,the permittee must apply for an individual permit a. Site Map b. Description ofPotential Pollutant Sources/Materiallnventory c. Starmwater Quality Controls 1) SWMPAdministrator 2) Materials handling and spill prevention 3) Erosion and sediment controls 4) Identification of discharges other than stormwater. 3. Other Requirements a Facility Inspections: The permittee will be required to make a thorough inspection of their stornnvatermmngement system,at least twice per year(in the spring and fall). These inspections must be documented andsummmized in the Annual Report to the Division. (See Part LD.4 of the permit) b. Employee Education: The permittee shall develop and implement employee education programs to inform personnel at all levels of responsibility of the components and goals of the SWMP. REPORTING REQUIREMENTS S All reports required for submittal shall be signed and certified for accuracy by the permittee. (See Part LDS of the permit) I. Process Water Dischargers:Submittal of the Discharge Monitoring Report for process waters shall be required on a quarterly basis for those facilities covered under Part LB of the permit 2 StormwaterDischargers: As outlined under Part LD.4of the permit,an Annual Report must be submitted to the Division, covering January 1 through December 31, on the overall compliance with the SWMP. The Annual Report will be due to the Division on or before February 15 of the following year. The exact due date for the permittee'sfirst Annual Report will be listed in their permit certification. Christopher L Gates Nathan Moore July II, 2002 PUBLIC NOTICE CHANGES Comments were received from several residents of Platteville,CO, regarding the effects of a specific Sand and Gravel mining operation on the groundwater supply in their area. Issues regarding the effect of mining activities on groundwater levels are addressed by the Colorado Division of Minerals and Geology, rather than the Water Quality Control Division. The Division has contacted the Division ofMinerals and Geology so that they may appropriately address the citizen's concerns. Based on afield inspection conducted by the Water Quality Control Division staff there were no operational issues that would prevent renewal of this general CDPS discharge permit_It is the Divisions determination that no changes to the general permit are needed to address this situation, and therefore, no changes were made to the permit. August 28, 2002 STATE OF COLORADO Bill Owens,Governor Jane E.Norton,Executive Director �0,,0 Dedicated to protecting and improving the health and environment of the people of Colorado rT _ 4300 Cherry Creek Dr.5. Laboratory and Radiation Services Division Denver,Colorado 80246-1530 8100 Lowry Blvd. •rgr6'+ Phone(303)692-2000 Denver,Colorado 80230-6928 TDD Line(303)691-7700 (303)692-3090 Colorado Department Located in Glendale,Colorado of public Health--_ http//www.cdphe.state.co-us and Environment December 30,2002 Bob Cartmel,Vice President Lafarge West,Inc. 1590 West 12th Avenue Denver,CO 80204 RE: Certification,Colorado Wastewater Discharge Permit System Permit No.,COG-500000,Facility Number:COG-500416 Weld County Dear Mr. Cartmel: Enclosed please find a copy of your certification,which was issued under the Colorado Water Quality Control Act. You are legally obligated to comply with all terms and conditions of the permit and certifications. Please read the permit and the certification; if you have any questions contact me at(303)692-3599. Sincerely, Darlene Casey Program Assistant Water Quality Protection Section WATER QUALITY CONTROL DIVISION Enclosure xc: Bruce Kent, Permit Team,Environmental Protection Agency(8P2W-P) Regional Council of Government Local County Health Department Tom Schaffer,D.E.,Technical Service Unit, WQCD Permit File Permit Fee File /dc cert Stormwater Management Plan R Lupton Prt DMG 111 Perna Page 30 of 81 JAFARGE NORTH AMERICA Construction Materials STORMWATER MANAGEMENT PLAN for Riverbend Pit Stormwater/Discharge Permit #COG-500416 Prepared by: Lafarge West, Inc. A subsidiary of Lafarge North America, Inc. REVISED NOVEMBER 3, 2004 MODIFIED TO INCLUDE FT. LUPTON PIT AND ADDITIONAL ACREAGE - TABLE OF CONTENTS SECTION 1: DESCRIPTION OF INDUSTRIAL ACTIVITIES SECTION 2: PLAN CERITIFICATION SECTION 3: SITE MAP-SEE EXHIBIT C SECTION 4: MATERIALS INVENTORY & POLLUTION PREVENTION SECTION 5: THE SWMP ADMINISTRATION SECTION 6: RISK IDENTIFICATION AND ASSESSMENT SECTION 7: PREVENTATIVE MAINTENANCE SECTION 8: SPILL PREVENTION & RESPONSE SECTION 9: BEST MANAGEMENT PRACTICES SECTION 10: EMPLOYEE TRAINING SECTION 11: TESTING FOR NON-STORM WATER DISCHARGES, CONTROL OF NON-STORM WATER DISCHARGES APPENDIX A: STORMWATER PERMIT APPENDIX B: STORMWATER INSPECTION REPORTS APPENDIX C: ANNUAL REPORTS APPENDIX D: STORMWATER TRAINING SIGN-IN RECORDS APPENDIX E: PREVENTATIVE MAINTENANCE RECORDS SECTION 1: DESCRIPTION OF INDUSTRIAL ACTIVITIES - This SWMP has been prepared for the Riverbend Pit, located just south of FL Lupton. The following construction activities will be associated with this project: A EXCAVATION: Material is removed and hauled away or stored at the site for future use. ❑ GRADING: Site is leveled and smoothed according to final project specifications using a road grader. This may include the right-of-ways, drainage ditches, and road sub-base areas of the project. 0 STRIPPING The overburden is removed and the material is sold, hauled away or stockpiled. Stockpiles may be in the form of berms. ❑ QUARRYING Drilling and blasting is used to liberate virgin stone from its natural consolidated state. Haul trucks are typically used to take the material to the plant for processing. A STOCKPILING (Check if applicable) `71 OVERBURDEN AND TOP SOIL Stockpiles may occur in the form of earthen berms. SAND AND GRAVEL Raw and processed aggregates are stockpiled for future use. A AGGREGATE MIX FOR CONCRETE PRODUCTION Aggregate can be stored in stockpiles, and loaded into a ground hopper as needed, and then conveyed to the plant. Material may also be loaded directly into a series of hoppers located above the plant that directly discharge into the plant. A AGGREGATE MIX FOR ASPHALT PRODUCTION Raw material can be stockpiles or put into storage bins. ❑ ASPHALT MILLING The existing roadway is milled, emptied into haul trucks and hauled off-site. ❑ ASPHALT PAVING Hot mix asphalt is transported to the project from a production plant located off- site_ It is then placed, compacted and rolled according to project specifications. _ A RECLAMATION Reclamation is an ongoing activity throughout the life of a pit or a quarry, and takes place in a contemporaneous fashion as is practicable. Reclamation involves proper sloping, seeding, erosion control and protection from off-site • impacts. At the end of the life of an aggregate or industrial operation final reclamation begins. Reclamation is covered under Rule 6 of MLRB regulations and by an �I approved MLRB Permit. A ASPHALT MANUFACTURING A hot-mix asphalt plant blends together aggregate and asphalt cement to produce a hot, homogeneous asphalt paving mixture, which is then hauled to off- site construction projects. The aggregate used can be a single material, such as a crusher run aggregate or a pit run material, or it can be a combination of coarse and fine aggregates, with or without mineral filler. The binder material used is normally asphalt cement but can also be an asphalt emulsion or one of a variety of modified materials. Various additives, including liquid and powdered materials, can also be incorporated into the mixture. Activities at these sites may include the following: raw material unloading into stockpiles or storage tanks, raw material feed to plant, material batching, raw material storage area, recyclable asphalt disposal area, truck wash out, and water supply and settling lakes. ❑ READY MIXED CONCRETE, CENTRAL BATCHING These operations mix sand, gravel, cement, and water together to form ready mix concrete, which is then hauled to off-site construction projects. The raw materials are made up of sand, gravel, cement, water and additives. The sand and gravel is either stored in stockpiles located outside and fed into the plant via loaders and conveyors, or it is stored directly in a series of hoppers located directly above the central plant. The remainder of the raw materials is stored in tanks to protect them from exposure to moisture and temperature until they are pumped into the mixer. Once the raw materials are fed into the central mixer and combined to form Ready Mix concrete, the final product is placed within trucks and removed from the site. A READY MIXED CONCRETE, DRY BATCHING These operations apportion out a mix of sand, gravel, cement, and water together, which is then mixed within the truck to form Ready Mixed concrete that is hauled to off-site construction projects. The raw materials are made up of sand, gravel, cement, water and additives_ The sand and gravel is either stored in stockpiles located outside and fed into the plant via loaders and conveyors, or it is stored directly in a series of hoppers located directly above the central plant. The remainder of the raw materials is stored in tanks to protect them from exposure to moisture and temperature until they are pumped into the mixer. Dry batching then apportions out and dumps the raw materials into the concrete truck-mounted mixer where it is continually agitated and mixed to keep it from hardening before it arrives on the assigned job site. 4 EQUIPMENT FUELING Diesel and/or gasoline tanks are located on site for fueling of equipment. Off-site vendors refill tanks as needed. ✓I EQUIPMENT MAINTENANCE The site contains a shop area where maintenance can be performed on various equipment as needed. Typical chemicals associated with maintenance, such as used oil, antifreeze, motor oil, hydraulic oil, brake fluid, etc, may be stored on site as needed. All chemicals are stored in such a manner as to prevent materials from mixing with stormwater or being accidentally discharged off site or to waters of the U.S. SECTION 2: SWMP ADMINISTRATION CONTINUED "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who managed the system, or those persons directly responsible for gathering information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." Name (printed) Title Date Signature SECTION 3: SITE MAP , `\ The map on the following page'will contain each of these items if they are applicable to the current location: ✓ Site boundary ✓ Access & haul roads ✓ Stormwater outfalls and an outline of each drainage area for each outfall ✓ An estimate of the direction of flow ✓ Material handling areas ✓ Each structural control measure to help reduce pollutants in stormwater runoff ✓ Areas used for storage or disposal of overburden, materials, soils, or wastes ✓ Areas used for mineral milling & processing ✓ Springs, streams, wetlands and other surface waters ✓ Location of mine drainage or any other process water discharge points ✓ Boundary of tributary area that is subject to effluent limitations ✓ Date the map was prepared `See Exhibit C: Mine Plan Map btt RUN 4: UtSURIPTION OF POTENTIAL POLLUTANT SOURCES, MATERIALS INVENTORY, RISK IDENTIFICATION AND ASSESSMENT, AND GOOD HOUSEKEEPING PRACTICES KEY FOR SECTION 4 -TABLE A Describe material unloading area: Material is conveyed, placed into hoppers with a loader, or stored in silos and stockpiles. Significant materials that have been treated, stored, or disposed of in a manner to allow exposure to storm water: A = Significant material located on site Methods of on-site storage or disposal: B = Stock piling C = Enclosed containers D = Containment areas E = Treatment plants F = Other methods (fill in on chart) G = Tank H = Convault I = Enclosed areas Material management practices employed to minimize contact of the materials with storm water runoff: J = Stored on impervious surfaces K = Graded excavations L = Stock pile revegetation M = Detention/Retention Area N = Berms O = Double-wall tank P = High-level alarm Q = Other secondary containment for tanks R = Other practices (fill in on chart) (Extra blanks are provided for additional significant materials not included on Table 4A) 'I) w z X X X X a 0 I- U - . C7 a a z _ w E w u_ O O a Z a _ E w z o,5 O Y— O H O X X w W Q O X X X X X X X -1 X X X 7 m X X X X X Y 4.0 w H X X X X X X X -, X X a E z -1 < < U w LL I— Q Z i- u) z Q < LI u) w MI a) z L.A. cn m Y n u) 0 u) 03 N 0 N V ._ "Q c co U x a) -Q Ac N a LL 0 N Y o c O C Lao _ cv "° C O F• F- °> �' - U cn -C U) coo 0 O N N a co 0) Y u) c N c N O O h et Z W Q j e C v) 5 33 Q) 'N .- a) z Q _O '- c Y Q v a) O > a) Z 0 V C m V co co w @ a) W x m N OV m (p w (0 Ri 4) 13 W O N a) a) rn 0) O O N m D 2 O N to a) Q) 0) 0) O O rn co a O 0. o n 2 a .0 _ u) 7 N )) O al (a IL), 'O U 3 to a) v C ,n N �° w (moo co co ~ U 1 o > 6 'n a) m v m (Dc 1-n- a) m o co (o co .L9 =79 2 n- a) m V 0 0 n a> c o 0 -- cn a) D Q E a) z cn a) v o o n a) n a E a) c Q w O N 0 Ql (p N C d) a) _ O cn Q O > (D a) a) al - C ] in a) C 0 N /) 0 V) F- .0 V) n C O_E J < 0__..J O < L F O co ct C u) O ) ._r Q O _s O < SECTION 4 -TABLE B: LIST SIGNIFICANT SPILLS &LEAKS OF TOXIC OR HAZARDOUS SUBSTANCES Date Spill or Leak No reportable spills Additional sheets may be attached if needed SECTION 4 - TABLE C: STORM WATER DISCHARGES ASSOCIATED WITH INDUSTRIAL ACTIVITIES Check if Industrial Activity Direction of Flow Potential Pollutants Applicable X Topsoil and overburden SEE EXHIBIT C Total suspended solids stock piling X Aggregate unloading SEE EXHIBIT C Total suspended solids X Aggregate feed to plant SEE EXHIBIT C Total suspended solids X Material batching for final SEE EXHIBIT C Total suspended solids product X Aggregate storage area SEE EXHIBIT C Total suspended solids X Aggregate washing SEE EXHIBIT C Total suspended solids X Aggregate crushing SEE EXHIBIT C Total suspended solids X Recyclable concrete area SEE EXHIBIT C Total suspended solids X Recyclable asphalt area SEE EXHIBIT C Total suspended solids X Petroleum storage for SEE EXHIBIT C Hydrocarbons equipment and trucks X Concrete Truck wash out SEE EXHIBIT C pH, total suspended solids X Employee/Truck parking SEE EXHIBIT C Hydrocarbons, total suspended area solids X Truck/equipment SEE EXHIBIT C Hydrocarbons, total suspended washing solids X Equipment repairs SEE EXHIBIT C Hydrocarbons, total suspended solids SECTION 4 -TABLE D SUMMARIZE ANY EXISTING DISCHARGE SAMPLING DATA DESCRIBING POLLUTANTS IN STORM WATER DISCHARGES No sampling data available. SECTION 4 - TABLE E DESCRIBE EACH PROPOSED SAMPLING POINT, SHOULD MONITORING BE REQUIRED Sampling Description of Location point Not required- Water could be sampled at CDPS discharge points for mine dewatering. SECTION 5: SWMP ADMINISTRATION Team Members Responsibilities Operations - assist in filling out the plan Title: Plant Manager - advise Resource Mgmt of changes Phone: 303-657-4000 - facility inspections Operations - review and certify plan, inspections, Title: VP and annual reports Phone: 303-657-4000 - sign to certify plan Resource Management - complete plan and maps Title: Resource Coordinator - update plans as informed of changes Phone: 303-657-4000 - summarize inspections and submit annual reports to CDPHE NOTE: Any team member may designate other trained personnel to conduct a facility inspection. SECTION 6: RISK IDENTIFICATION AND ASSESSMENT Because of the nature of the activities within our industry, the potential for contributing pollutants is minimal. Sources contributing pollutants to storm water discharges were covered in detail in: Materials, methods, and management practices, Section 3 -Table A. History of significant spills and leaks, Section 3 -Table B. SECTION 7: PREVENTATIVE MAINTENANCE Unless otherwise indicated below, the inspection and cleaning frequencies are on an as-needed basis. DESCRIPTION INSPECTION FREQ. CLEANING FREQ. Hydrocarbon Tanks Monthly Hydrocarbon Secondary Monthly Containment Catch Basins Settling Ponds Additive Storage -- Roadways & Loading Areas Containment Devices (berms, ditches, etc.) General Plant Conditions Perimeter Erosion Other SECTION 8: SPILL PREVENTION AND RESPONSE If a SPCC plan is required, it is included as separate document. SECTION 9: BEST MANAGEMENT PRACTICES The following practices are representative of measures employed for limiting pollution associated with runoff, as well as sediment and erosion control. The specific practices listed below should not be construed as practices that are mandatory or that there is - - any need on the part of an operator to justify non-use of a particular practice. The intent of BMP's is to exert a measure of control over the water quality of stormwater discharges. The practices selected by an operator to achieve this may evolve with time. PRACTICE EMPLOYED AREA WHERE PRACTICE IS DATE OF EMPLOYED IMPLEMENTATION Vegetation Management: Buffer Strips Temporary Seeding Constructed Wetlands Revegetate as Practicable Other(Describe) • Water Management: (Interim Measures) Straw Bales Silt Fences Detention/Holding Ponds Rip Rapping Site Grading Other(Describe) Water Management(Permanent Structural Controls): Upstream Flow Diversion Channel Improvements Flow Storage/Detention Berming Earth Dike Check Dams Pipe Slope Drain Sediment Trap Area Flow Attenuation Area Infiltration Area Secondary Containment for • Aboveground Storage Tanks Washout pits — Other(Describe) SECTION 10: EMPLOYEE TRAINING Training which explores the goals and basic components of the SWMP will be conducted for upper level management (superintendents and foremen) on an annual basis. Such training will include: Spill Prevention Spill Response Good Housekeeping Techniques Materials Management Sediment & Erosion Prevention Definition of Process Water Best Management Practices in Place and Proper Maintenance While operations are conducted on site, it will be the responsibility of the superintendent or foreman in charge to train appropriate on-site personnel so that the goals of the SWMP are achieved. SECTION 11 -FORM A DETAIL OF NON-STORM WATER DISCHARGE NOTE: DISCHARGE MEANS WATER THAT RUNS OFF THE PROPERTY Fill out form as needed. Most items should be no discharge, but include control measures if necessary. NO CONTROL TYPES OF DISCHARGE DISCHARGE PERMITTED UNPERMITTED MEASURES Process Water Discharges: Transport Water Equipment Wash Water Dust Control (Roads) Sand &Gravel Wash Water Gravel Pit Dewatering Other OTHER INDUSTRIAL PROCESS DISCHARGE Describe Source(s): SANITARY WASTE DISCHARGE: Exempt Discharges: IDENTIFIED ON SITE _ COMMENTS Irrigation Return Flows Other Agricultural Discharges Fire Fighting Discharges Foundation Draining (SUMP) Springs Other ADDITIONAL COMMENTS: Appendix A STORMWATER PERMIT Appendix B STORMWATER INSPECTION REPORTS Appendix C ANNUAL REPORTS Appendix D STORMWATER TRAINING SIGN-IN RECORDS Appendix E PREVENTATIVE MAINTENANCE RECORDS EXHIBIT H Wildlife Information Based on previous wildlife assessments prepared by the Department of Wildlife(DOW) in the general area,species that are commonly found in the area include deer,pheasant, rabbits,muskrat,beaver, waterfowl, raptors,rodents,magpies,and songbirds. Please refer to the enclosed Wildlife Resources Assessment, prepared by a qualified biologist,for detailed information regarding wildlife at the site. A copy of this assessment has been submitted to Sharlene Haeger of the Colorado Department of Wildlife, see enclosed letter. Wildlife species inhabiting the site include black-tailed prairie dog,northern leopard frog, coyote, raccoon, cottontail rabbit,deer mice,pocket gopher,western meadowlark, homed lark,rock dove,redwing blackbird, American robin,black-billed magpie, killdeer, mourning dove, wood duck, and American goldfinch. While bald eagle nesting sites have recently been observed in the general area, no local bald eagle nesting sites have been identified on or adjacent to the proposed mining area. The attached letter from the United State's Fish and Wildlife Service (USFW) states that a population of Preble's meadow jumping mouse (PMJM)is unlikely on this site. Local wildlife species may be displaced from the area during operations. However, they are expected to reestablish themselves when mining and reclamation have been completed. The proposed mining and reclamation will not hinder local movement of wildlife. The proposed lakes are anticipated to provide valuable habitat to waterfowl and migratory bird species. Fc 1 upton Pit DUG 112 Permit /'age 3/oJ81 Wildlife Resources Assessment Ft.Lupton Pit DMG 112 Permit Page 32 of81 Wildlife Resources Assessment Fort Lupton Properties Weld County, Colorado Prepared for— Lafarge NA 1400 West 64th Avenue PO Box 21588 Denver, Colorado 80221 Prepared by ERO Resources Corporation 1842 Clarkson Street Denver, Colorado 80218 (303) 830-1188 July 19, 2004 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES WELD COUNTY, COLORADO JULY 19,2004 Introduction LaFarge North America is applying for a surface mining permit from the Colorado Division of Minerals and Geology to excavate sand and gravel on portions of the properties within the study area. Lafarge contracted ERO Resources Corporation (ERO) to conduct a Wildlife Resources Assessment at the proposed Fort Lupton properties site in Weld County, Colorado. According to the Colorado Division of Minerals and Geology(DMG) Rules and Regulations(October 1995), Rule 6.4.8(1) of Wildlife Information requires that the Applicant include a description of the significant wildlife resources on the affected land. Rule 6.4.8(1)d requires the Applicant to include a description of the general effect during and after the proposed operation on the existing wildlife of the area, including but not limited to temporary and permanent loss of food and habitat, interference with migratory routes, and the general effect on the wildlife from increased human activity, including noise. Purpose The purpose of this assessment is to determine the presence or absence of wildlife populations, including threatened and endangered species,and habitat on or near the Fort Lupton properties(project site). A total of eleven parcels are included in the project site (Figure I). Project Description The project site is located between County Road 6 and Highway 52,just west of the towns of Brighton and Fort Lupton, Colorado (Figure 1). The study area encompasses WIDLiFE RESOURCES ASSESSMENT -FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO eleven properties owned by private landowners and D&S Mining. The area is generally bounded by Weld County Road 6 to the south, State Highway 52 to the north, the South Platte River to the east and Weld County Road 23 to the west(Figure 1). The study area is located in the Fort Lupton 71/2-minute USGS quad,TIN, R66W,W %2 Sections 7, 18 and 19 and TIN, R67W,NE / Section 24,N 1/2 Section 13,Section 12 and the SW 'A Section I in Weld County, Colorado(Figure 1). UTM coordinates for an approximate center of the overall study area are 4434000mN and 514000mE. The proposed project consists of the potential excavation of the sand and gravel resources on portions of the properties within the study area. Ecological and Other Features of the Study Area This site historically has been used for agriculture, including livestock grazing and agricultural crops. Current land use in the area consists of agriculture, sand and gravel mining, light industrial and rural residential. The South Platte River flows along the eastern edge of the study area. Additionally, several irrigation ditches and Big Dry Creek traverse the property. Portions of the South Platte River corridor have been impacted by past agricultural practices and aggregate mining, both upstream and downstream of the site. Wetland and riparian areas occur along the South Platte River, Big Dry Creek, and several unnamed irrigation ditches on the properties. The South Platte River and associated riparian corridor flow along the eastern border of the study area from south to north. A mixture of wetlands, riparian forests, and barren sandbars occur along the river. Wetland areas occur in low-flow backwater areas and areas along the main channel with slow flowing water. Vegetation in wetland areas along the river varies. Dominant vegetation consists mostly of understory species such as prairie cordgrass (Spartina pectinata), reed canarygrass(Phalaris arundinacea), poison hemlock(Conium maculatum), and cattail (Typha latfjolia). Small patches of soft-stem bulrush (Scirpus tabernaemommni), lady's thumb (Polygonum persicaria)and blue vervain (Verbena hastate)occur in backwater areas. Sandbar willow(Salix exigua) is the dominant shrub layer in wetland areas along the river. Riparian areas are dominated by plains cottonwood (Populus deltoides),peach-leaf willow (.Salix amygdaloides), Russian 2 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO olive(Elaeagnus angustifolia),and sandbar willow. Understory vegetation consists mostly smooth brome(Bromus inennis),Canada thistle(Cirsium arvense), showy milkweed,poison hemlock,and poison ivy(Toxicodendron rydbergit). Upland areas bordering the river consist mostly of smooth brome pastures,grazed land, and planted crops. Many areas adjacent to the river have been disturbed by human activity. Concrete rubble,trash and junkyards occur along the river near old farms and industrial areas between Brighton and Fort Lupton. Big Dry Creek flows through the study area from southwest to northeast. Several diversions occur along the creek within the study area. Vegetation along the creek consists mostly of sandbar willow, with reed canarygrass, prairie cordgrass, stinging nettle(Urtica dioica), Canada thistle, and poison hemlock. Mature plains cottonwoods are scattered throughout the Big Dry Creek corridor within the study area. Several irrigation ditches traverse the study area. Some linear stands of mature cottonwood occur along the ditches. Most of the ditches flow through heavily grazed areas or cropland. Some fringe wetlands consisting mostly of reed canarygrass and Emory's sedge(Carex emoryr)occur along the banks of the ditches. Uplands areas vary greatly throughout the site. No native shortgrass prairie areas exist in the study area. Some upland pastures, dominated mostly by smooth brome,occur in riparian areas near the South Platte River. The majority of upland areas consist of irrigated cropland. Prominent crops in the areas consist of corn, onion, mustard, cabbage, and hay. Methods The overall approach to the project was to gather existing information and identify data deficiencies in the existing data. After a review of existing data, a field reconnaissance survey was conducted to gather missing data or verify and augment existing data necessary to perform the assessment of wildlife resources. Field reconnaissance concentrated on identification of the presence of habitat necessary to support sensitive wildlife species, including threatened and endangered species, game 3 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTws,Wan COUNTY,COLORADO species,or other species and habitats protected by state or federal regulations. Wildlife issues evaluated in this assessment included: • Federal and state listed threatened,endangered and sensitive species • Large mammals, including game species and other species protected by state of local regulations • Small mammals • Breeding birds protected by the Migratory Bird Treaty Act(MBTA) including eagles and other raptors ▪ Wildlife Corridors and other wildlife-related issues The site contains potential habitat for the Preble's meadow jumping mouse(Preble's), a federally threatened species. A presence absence survey for Preble's was conducted concurrent with this site review. Agency Consultation and Data Gathering Appropriate state and federal agencies, including the Colorado Division of Wildlife (CDOW), U.S. Fish and Wildlife Service(Service)and others,were contacted to gather any existing information of wildlife species presence, abundance and distribution near the project site. Data was also gathered from the Colorado Natural Diversity Information Source (NDIS) and the Colorado Natural Heritage Program. Wildlife Assessment Federal and State Listed Threatened,Endangered and Sensitive Species Federal or state threatened, endangered and sensitive species evaluated include: • Black-footed Ferret—Federally and State Endangered • Preble's Meadow Jumping Mouse—Federally and State Threatened • Bald Eagle--Federally and State Threatened • Black-tailed Prairie Dog—Federal Candidate, State Species of Concern • Burrowing Owl—State Threatened • Mountain Plover—State Species of Concern • Ferruginous Hawk.- State Species of Concern • Long-billed Curlew - State Species of Concern • Swift Fox —State Species of Concern • Northern Leopard Frog— State Species of Concern 4 WILDLIFE RESOURCES ASSESSMENT - - FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO Common Garter Snake—State Species-of Concern Blackfooted Ferret(Muslela nigripes) The black-footed ferret is a federally and state listed endangeredspecies closely associated with the presence of prairie dogs. A field reconnaissance survey was conducted to verify the location, size, and activity of prairie dog towns within and near the proposed project site and evaluate the capability of any existing towns to support ferrets. Prairie dogs currently occupy several areas within the study area. Federal guidelines establish a minimum area of 80 acres of black-tailed prairie dog towns that the Service believes is needed to support a black-footed ferret(50 CFR 402). Prairie dog colonies within the study area do exceed 80 acres in area. Because prairie dog colonies located in the study area exceed the minimum size requirements believed to be necessary for ferret populations, a black-footed ferret survey may be required prior to construction or other habitat disturbing activities. Preble's Meadow Jumping Mouse(Zapus hudsonius preblei) The Preble's meadow jumping mouse(Preble's) is currently listed as a threatened species under the Endangered Species Act (ESA) and is a state listed threatened species. Typically,this mouse 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(Armstrong et al. 1997; Service 2004). The mouse occurs below 7,500 feet in elevation, generally in lowlands with medium to high moisture (Service 2004; Natural Heritage Program 1996)along permanent or intermittent streams (Ryon 1996). A trapping survey for Preble's was conducted from June 13 to June 19, 2004, due to the presence of potentially suitable habitat along the South Platte River and Big Dry Creek on the Fort Lupton Properties. No Preble's were found in 1,325 trapnights of survey effort following Service protocol. A separate report is being prepared to summarize the results of the trapping survey and will be submitted to Lafarge and the Service for approval. Trapping surveys are generally valid for I year. If construction does not begin within a year, a letter must be sent to the Service for an extension. 5 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO Bald Eagle(Haliaeetus leucoceplrahts) Bald eagles are currently federally and state listed as a threatened species. Both bald and golden eagles are protected by the Bald and Golden Eagle Protection Act(1978). Overwintering bald eagles are frequently observed along the South Platte River and Boulder and Saint Vrain Creeks in Weld County. A search of the NDIS database did not identify any known eagle nest sites or wintering areas on the project site. Furthermore, no nests were seen during the site visit. The nearest known nest site is approximately 5 miles to the southeast at Barr Lake and 5 miles to the east near Lochbuie. The South Platte River provides bald eagle winter foraging and winter concentration habitat on the project site. Eagles foraging along the South Platte River are also likely to occasionally forage near Big Dry Creek and irrigation ditches that provide mature cottonwood stands for perching or prairie dogs and other prey species. Black-tailed Prairie Dog(Cynomys ludovicianus) The black-tailed prairie dog is a federal candidate species and a state species of special concern. Due to population declines across its historical range, the black-tailed prairie dog was proposed to be listed as a threatened species under the ESA_ On February 4, 2000, the Service issued a 12-month petition finding, which concluded that the listing of the black-tailed prairie dog as threatened is warranted, but an immediate proposal to list is precluded by other, higher priority actions. This finding establishes the black-tailed prairie dog as a candidate species for federal listing for protection under ESA. The status of this species will be re-evaluated annually by the Service. Black-tailed prairie dogs are social animals that occur in large colonies or"towns" formed by a series of burrows. Prairie dogs provide an important prey resource for numerous predators and their burrows help provide habitat for other species by creating an environment that is inviting to other animals. Prairie dogs live in burrows about 3 to 14 feet) deep and between 10 to 100 feet long. A mound at the entrance of the burrow prevents water from rushing in and serves as a lookout station. A density of 35 black- tailed prairie dog mounds per acre is common, although up to 95 mounds have been reported. Burrow systems have one to three entrances (Andelt and Hopper 1998). ERO 6 .. - WILDLIFE RESOURCES ASSESSMENT , FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO mapped the prairie dog towns on the project site (Figure 2). Several large prairie dog colonies currently exist in the southern portion of the study area. The current status of prairie dogs as a candidate species does not protect the species under the ESA; however, future listing of the prairie dog would require consultation with the Service before disturbing the colony. Many counties and municipalities along the Colorado Front Range have established regulations and guidelines pertaining to the management and removal/control of prairie dogs. Currently, Weld County has no prairie dog regulations. Several alternatives for prairie dog control are available. Live trapping, poison and donation to the black-footed ferret recovery program are among the control techniques used. Landowners may conduct the control method themselves, hire a commercial firm, or get assistance from the Division of Animal Industry, Colorado Department of Agriculture, 700 Kipling, Lakewood, CO 80215;telephone (303) 239-4157. Control materials may be purchased through commercial vendors or from the Colorado Department of Agriculture. Burrowing Owl(Athene cunicularia) The burrowing owl is a state threatened species. Federal and state laws, including the Migratory Bird Treaty Act, prohibit the killing(ft-burrowing owls. Inadvertent killing of burrowing owls could occur during prairie dog poisoning, construction,or earth moving projects. hi an effort to avoid accidental killing of owls, the Colorado Division of Wildlife has drafted suggestions for conducting clearance surveys in areas subject to poisoning and/or construction projects during the period from March 1 through October 31. The project area contains over 100 acres of prairie dogs and potential burrowing owl habitat. No burrowing owls were observed during the initial site visits in June. However, weather conditions during the field visit in June were not conducive to burrowing owl activity. Although no owls were detected on the project site, ERO recommends that any soil disturbance or removal of prairie dogs be conducted between October 31 and March 1. If prairie dog towns are disturbed during the March 1 to October 31 timeframe, •-- 7 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO CDOW will recommend formal surveys for burrowing owls just prior to any habitat disturbing activities(see Appendix A). Mountain Plover(Charm/tins montanus) The mountain plover is a state species of special concern. This species nests primarily in short grass prairie sites used historically by prairie dogs, bison and pronghorn. Typically plovers nest in areas that maintain approximately 30 percent bare ground and are often found in disturbed habitats, burned prairie, fallow agricultural fields and prairie dog colonies. This species avoids vegetation greater than 6 inches in height and hillsides or steeper slopes. Potential habitat exists in the southern portion of the project area near prairie dog town B (Figure 2). The area is heavily grazed and vegetation is shorter than 6 inches in height. No additional mountain plover or potential habitat for mountain plover was identified during site reconnaissance surveys. Grassland and pasture vegetation on rest of the Fort Lupton properties is generally greater than 6 inches in height and the area contains very little of the bare ground component preferred by breeding mountain plover(Knopf 1996). Ferruginous Hawk(Buteo regalis) The ferruginous hawk is the largest hawk in North America and is a state species of special concern. 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 the black-tailed prairie dog(Beane 1996). This species has been known to breed in scattered locations in eastern Colorado but not near the study area(Kingery 1998). Currently no nesting ferruginous hawks are known to occur in Boulder, Jefferson, eastern Weld or eastern Adams Counties. No potential ferruginous hawk nesting sites were seen during the site visits in June 2004. The prairie dog towns in the southern portion of the study area provide a potential food source for ferruginous hawks, and ferruginous hawks are likely winter visitors to the 8 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO project site. The proposed aggregate mine would remove prairie dogs,the primary prey for wintering ferruginous hawks along the Colorado Front Range(Beane 1996). Long-Billed Curlew(Numinous americanus) The long-billed curlew is globally secure,but listed as a state species of concern. This species mostly nests on shortgrass prairies(Kingery 1998). The presence of water may influence initiation of nesting in the first year. Site fidelity may then cause the bird to return even if nearby water has dried up (McCallum et al. 1977). Breeding curlews arrive on breeding grounds in April and eggs hatch from early to mid-June. No curlews were observed in the study area and no records of breeding curlews exist near the project site. The proposed project is highly unlikely to impact any long-billed curlew. Swill Fox(Vulpes velox) The Swift fox is a state species of special concern. The distribution of swift fox includes the grasslands of the Great Plains including eastern Colorado (Fitzgerald et al. 1994). Den sites are usually located on sites dominated by native shortgrass prairie species such as blue grama and buffalo grass. They are sometimes associated with prairie dog towns although they generally excavate their own dens (Fitzgerald et al. 1994). The Fort Lupton properties do not support areas of native shortgrass prairie that the swift fox typically favor. The proposed project is highly unlikely to impact swift fox. Northern Leopard Frog(Rana pipiens) The northern leopard frog typically inhabits the banks and shallow portions of wetlands, ponds, lakes, streams,and other permanent bodies of water. This species breeds in shallow, non-flowing portions of permanent water bodies and in seasonally flooded areas. Leopard frogs typically emerge from winter dormancy in March and remain active until cold weather forces them into hibernation in October or November (Hammerson 1986). Leopard frogs were observed in a wetland near the South Platte River in the east- central portion of the study area. Leopard frogs likely inhabit wet areas in or adjacent to any waterway on the property. The leopard frog is currently not protected under any federal, state, or county regulations. However, if the species were to become federally or 9 - WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO state listed in the future, regulations regarding protection of this species could be imposed. Common Garter Snake(Thanmophis sirtalis) The common garter snake is considered globally secure but rare in Colorado and is a state species of special concern. This species occurs only along the South Platte River drainage below 6,000 feet in northeastern Colorado(Hammerson 1999). This snake inhabits marshes,ponds,and stream edges, essentially restricted to aquatic and riparian habitats within floodplains. Although no common garter snakes were seen on the property,suitable habitat is present in the study area. Riparian and wetland areas associated with the South Platte River, Big Dry Creek,and nearby irrigation ditches could potentially support populations of this species. Large Mammals Areas within the project site provide habitat for animals including coyote (Canis latrans),red fox(Vulpes vulpes), American badger(Taxidea taxes), and raccoon (Procyon lotor). Coyote tracks and droppings were observed within the prairie dog town. Raccoon tracks were observed along Big Dry Creek and the South Platte River. No sign or evidence of red fox or badger was observed, but these species are likely to occur in or near the study area. According to the Colorado NDIS, the project site does not contain any sensitive elk (Cervus elaphus), mule deer(Odocoileus hemonius), or pronghorn (Antilocapra americana)range, although mule deer were observed foraging on the site. The proposed project will not substantially impact large mammal species. Small Mammals Smaller mammals such as cottontail rabbits(Sylvilagus spp.), deer mice(Peromyscus maniculatus), and pocket gophers(Geomys bursarius) also utilize the habitat within the project site. Desert cottontails were observed using abandoned prairie dog burrows. Signs of digging by pocket gophers were observed in a few locations in the southern 10 WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO portion of the site. As described above,prairie dogs are locally common in the study area. Birds Many species of birds occur in the riparian and cultivated areas of the study area. Birds observed during fieldwork include,western meadowlarks(Sturnella neglecta), horned larks (Eremophila alpestris),rock dove(Columba livia),redwing blackbird (Agelaius phoeniceus),American robin (Turdus migratorius), black-billed magpie(Pica pica), killdeer(Charadrius vociferous),mourning dove(Zenaida macroura),wood duck (Aix sponsa), and American goldfinch (Cardeulis tristis). Many of the above species likely nest on the site. Wildlife Corridors The project site contains no wildlife migration corridors identified by the CDOW (CNDIS 2004). Wildlife, particularly rodents and carnivores such as coyotes and raccoons, likely travel along Big Dry Creek and the South Platte River. Conclusions and Discussion The project site lacks any potential breeding or critical winter habitat for any federally listed threatened or endangered species. Wintering bald eagles may occasionally forage on the property. No known eagle nest sites are located along the South Platte River in the project area. However, known nest sites are located nearby at Barr Lake and near the Town of Lochbuie. The project site contains potential habitat for several state listed species including, burrowing owl, mountain plover, northern leopard frog,common garter snake and winter foraging habitat for ferruginous hawk. The project site does not contain potential habitat for long-billed curlew or the swift fox. The site contains over 100 acres of prairie dogs, a federal candidate and state species of concern that will be severely impacted by the project. The current status of the black- tailed prairie dog as a candidate species does not federally protect the species under the ESA and state regulations primarily addresses relocation issues. Currently, Weld County has no prairie dog regulations. 1I WILDLIFE RESOURCES ASSESSMENT FORT LUPTON PROPERTIES,WELD COUNTY,COLORADO No NDIS mapped large mammal migration corridors exist on the property. However, large mammals(white-tailed and mule deer), small mammals(raccoon, coyote, rodents), birds and reptiles and amphibians likely travel the South Platte River and Big Dry Creek corridors. References Andelt, W. F.,and S.N. Hopper(revised). 1998. Managing prairie dogs. Cooperative Extension Bulletin, Colorado State University, Fort Collins. 5pp. (Also published at http://www.ext.colostate.edu/PUBS/NATRES/pubnatr.html). Armstrong, D.M.,M.E. Bakeman, A. Deans,C.A.Meaney, and T.R. Ryon. 1997.Report on habitat findings of the Preble's meadow jumping mouse. Boulder,Colorado. Report to the U.S.Fish and Wildlife Service and Colorado Division of Wildlife. Beane, R.D. 1996. Raptor Habitat Relationships at the Rocky Mountain Arsenal National Wildlife Area. MSC. Thesis. University of Colorado at Denver. Denver,CO. Colorado Natural Diversity Information System (CNDIS). 2002. Website review: ndis.nrel.colostate.edu col ostate.edu Fitzgerald, J.P., C.A. Meaney, and D.M. Armstrong. 1994. Mammals of Colorado. University Press of Colorado and Denver Museum of Natural History. Hammerson, G.A. 1999. Amphibians and Reptiles in Colorado. University Press of Colorado and Colorado Division of Wildlife. Kingery, H.E. (ed.). 1998. Colorado Breeding Bird Atlas. Colorado Bird Atlas Partnership and Colorado Division of Wildlife, Denver. Knopf, F.L. 1996. Mountain Plover(Charadrius montanus). In The Birds of North America,No. 211 (A. Poole and F. Gill, eds.). The Academy of Natural Sciences, Philadelphia,PA, and The American Ornithologists' Union, Washington, D.C. McCallum, D. A., W. D. Graul, and R. Zaccagnini. 1977.The breeding status of the Long-billed Curlew in Colorado. Auk 94:599-601. Natural Heritage Program. 1996. Vertebrate characterization abstract (State)Zap us hudsonius preblei. Ryon,T.R. 1996. Evaluation of historical capture sites of the Preble's meadow jumping mouse in Colorado. Final Report. MSES Thesis University of Colorado at Denver. May 1. U.S. Fish and Wildlife Service (Service). 2004. Survey Guidelines for Preble's Meadow Jumping Mouse. Colorado Field Office. Revised April. 12 •4_, ( • j �,a..A •r r 2 Stattlighway 52 . I.> ,,, ,ii y.a I 1 .1 ) * . i- ' • ) G i FAO_'rt LVa}OA G '1 , ilir 1 r 44, j p 8 • ( ' ` f Property removed , from DMG permit i boundary r / . . • t:ey1 p e , I\ 1 / ( • ,o 444 1 s+ 4 '. Intl — "4449 r•• ./ r n., II.1 r tI. •.r L, • 111 _J n o:, loth Weld County Road 6 _ School to) r„ 4 y� a r.,. ' '1. 1':;_ t ,. I• � .. ER(\ Fort Lupton Properties Figure 1 �oe TIN,R66W,W'h Sections 7, 18 and 19 and T1 N,A67W NE 1/.Scion 24, Site Location ERO Resources Corp. N'h Secion 13,Section 12 and IS SW 1/4 Section 1 1847 Clarkson 81"441 UTM Coordinates:Zara 13;4434000mN and 514000 mE Den.a,, CO 80218 USGS Fort Lupton,CO t Weld Coun ,Colorado (3031 830.1188 N Prepared for lolargetiA Fa._13031 830-1149 0 2000 4000 A Eck2004 2647 Figure 1 a, r ?` ; ^i ■ l i a :xi s iiiiii M" a J. R 7 :7 r • iy* ..5' • . � F i ilia A "II * Ilia, ofyon Ilf 41st ww A IP, etti ' *e ow.f ' , r : Al # • -- r,x 1 tfir rt r ��I .. k si ` r { ali Jr- f i. iA w • , I tr iiia 1 .-■f IR .. .. 1 I ` 1116/4, t EROERGSPrairie dog colonies Figure 2 Prairie Dog Locations ERO Resaurcn Corp 1841 Clarkson Street iss". Denver CO 80118 N %pored For Sorge NA 13031 830 1188 w 13031 e3o 1199 A r. 2647 Fyure 21 0 2000 4000 rear ,U y2004 WildliifeResources Assessment transmittal to Colorado Department of Wildlife Ft_Lupton Pit DMG 112 Permit Page 33 of 81 LAFARGE NORTH AMERICA Construction Materials USPS Certified Mailing#7002 3150 0001 7649 9846 October 18,2004 Sharlene Haeger Colorado Department of Wildlife 4207 County Road 16E Loveland, CO 80537 RE: Wildlife.Resources Assessment,Amendment to Riverbend permit M-2000-016 Dear Sharlene, Lafarge West, Inc. is amending an existing surface mining permit from the Colorado Division of Minerals and Geology(the Division)to excavate additional sand and gravel deposits. The Riverbend site is located just south of Fort Lupton in Weld County, Colorado. Lafarge contracted a consultant to conduct a Wildlife Resources Assessment at the proposed expansion of the Riverbend site; the assessment is attached for your review. Should you have any questions or need additional information, please do not hesitate to contact me at 303-657-4421. Best regards, Suzanne anz Land Specialist LAFARGE NORTH AMERICA INC. -Lafarge Construction Materials 1400 West 64°i Avenue.Denver.Colorado 80221 Telephone:(303)657-4000 Facsimile:(303)657-4037 Preble's Meadow Jumping Mouse Presence/Absence Survey • F,.Lupton Po DUG 112 Permit Page 34 0J81 Preble's Meadow Jumping Mouse Presence/Absence Survey Fort Lupton Properties Weld County, Colorado Prepared jor— Lafarge NA 1400 West 64th Avenue P.O. Box 21588 Denver, Colorado 80221 Prepared by— ERO Resources Corporation 1842 Clarkson Street Denver, Colorado 80218 (303) 830-1188 July 19,2004 Contents Introduction 1 Site Information Project Description 2 Methods 2 Ecological Features of the Site 3 Past Studies 5 Results 5 Conclusions and Discussion 6 Qualifications of Surveyors 6 References Cited 7 Photo Log Appendix A: Survey Field Data Compilation Forms Tables Table 1 Trapping locations on Fort Lupton properties 3 Table 2. Trapping Results. Figures Figure 1. Site Location. Figure 2. Trap Line Location. PREBLE'S MEADOW JUMPING MOUSE PRESENCE/ABSENCE SURVEY - FORT LUPTON PROPERTIES WELD COUNTY, COLORADO JULY 19, 2004 Introduction The Preble's meadow jumping mouse(Zapus hudsonius preblei) (Preble's)was listed as a threatened species on May 13, 1998 under the Endangered Species Act (ESA)of 1973,as amended (63 Fed.Reg. 66777 (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,this mouse occurs in low undergrowth consisting of grasses and forbs, in open wet meadows, riparian corridors, or where tall shrubs and low trees provide adequate cover(USFWS 2004;Meaney and Clippinger 1995). The mouse occurs below 7,600 feet in elevation, generally in lowlands with medium to high moisture (USFWS 2004;Natural Heritage Program 1996) along permanent or intermittent streams (Ryon 1996). From June 14 through June 19, 2004, ERO Resources conducted a trapping survey for Preble's along Big Dry Creek,a reach of the South Platte River, and on an irrigation ditch located on the Fort Lupton properties, the site of potential sand and gravel excavation. The purpose of this survey was to determine the presence or absence of Preble's along these drainages. No Preble's were captured at the site. Site Information Location: The project site is located in Weld County, TIN, R66W, W % Sections 7, 18 and 19 and TIN, R67 W,NE 1/4 Section 24, N % Section 13, Section 12 and the SW 1/2 Section 1 in the Fort Lupton 71-minute USGS quadrangle (Figure I). The study area contains 11 parcels of private property collectively called the Fort Lupton properties, owned by private farmers and D&S Mining. The trapping survey focused on riparian and wetland habitat along the drainage ways on these properties. The proposed project is FORT LUPTON PROPERTIES PREBLE'S MEADOW JUMPING MOUSE SURVEY - - northwest of the town of Brighton,west of Highway 85. Weld County Road 6 borders the property to the south, State Highway 52 borders it to the north,the South Platte River borders it to the east, and Weld County Road 23 borders it to the west. UTM coordinates(approximate center): UTM Zone 134434000mN and 514000 mE. Elevation: Average elevation is about 4906 feet above sea level. Soils: Aquolls and Aquents gravel substrate,and Bankard sandy loam (USSCS 1980). Hydrology: Big Dry Creek,several small ditches, and the South Platte River run through the properties. Project Description The proposed project consists of the potential excavation of the sand and gravel resources on portions of the properties within the study area. Methods ERO conducted the trapping survey using the methods outlined in the U.S. Fish and Wildlife Service's Treble's Meadow Jumping Mouse Survey Guidelines, revised April 2004. A total of 1,325 trap nights were completed over 4 nights from June 14 through June 19, 2004, with 325 to 350 traps being set each night. Five trapping areas were defined: Groups 2 and 5 were located along the riparian corridors of Big Dry Creek; Groups 1 and 4 were placed along the riparian vegetation of the South Platte River; and Group 3 was located along an irrigation ditch that runs through the properties (Figure 2). Table 1 lists exact locations for each group. Traps were spaced at 10-meter intervals with increased trap density in the best available habitat. All trap lines were set up along stands of willows, riparian understory, and herbaceous habitat that bordered the water sources. 2 FORT LUPTON PROPERTIES PREBLE'S MEADOW JUMPING MOUSE SURVEY Table 1 Trapping locations on Fort Lupton_properties. Trapping Area Section UTM Coordinatest (Group) I SI8 SW 1/4 514869E 4432876N 2 513 NW 1/4 513408E 4433695N 3 S13 NE 1/4 514292E 4433604N 4 518 NW 1/4 514899E 4433933N 5 512 SE 1/4 514373E 4434518N tUTM coordinates indicate center of trap line/area. Groups 1 and 4 are in TIN R67W,and Groups 2,3, and 5 are in TIN R66W,all located in the Fort Lupton Quad. Traps were set each evening between 4 PM and 6 PM and opened between 6:00 AM and 8:00 AM the following morning. The weather during the trapping survey was mostly light rain with scattered thunderstorms. Temperatures were cool with highs around 60°F and lows around 40°F. The traps used were Sherman large folding and non-folding aluminum and steel traps with galvanized treadles and doors. Traps were baited with Omelene. Ecological,Features of the Site The South Platte River and associated riparian corridor flow along the eastern border of the study area from south to north. Levels of the river were high throughout the trapping survey. A mixture of wetlands, riparian forests, and barren sandbars occur along the river. Wetland areas occur in low-flow backwater areas and areas along the main channel with slow flowing water. Vegetation in wetland areas along the river varies. Dominant vegetation consists mostly of understory species such as prairie cordgrass (Spartina pectinata),reed canarygrass(Phalaris arundinacea), poison hemlock (Conium maculatum), and cattail (Typha latifolia). Small patches of soft-stem bulrush (Scirpus tabernaemontani), lady's thumb (Polygonum persicaria), and blue vervain (Verbena hastate)occur in backwater areas. Sandbar willow(Salix exigua) is the dominant shrub layer in wetland areas along the river. Riparian areas are dominated by plains cottonwood (Populus deltoides), peach-leaf willow (Salix amygdaloides), Russian olive (Elaeagnus angustifolia), and sandbar willow. lJnderstory vegetation consists primarily of smooth brome (Bromus inermis), Canada thistle (Cirsium arvense), showy milkweed, poison hemlock, and poison ivy (Toxicodendron rydbergii). Group I (Photo I) was 3 FORT LUPTON PROPERTIES PRER E'S MEADOW JUMPING MOUSE SURVEY placed directly along the riparian corridor of the river,with plains cottonwood and prairie cordgrass being the dominant species. Group 4(Photos 2 and 3) was adjacent to the river with various wetland and shrub species. Big Dry Creek flows through the study area from southwest to northeast. Several diversions occur along the creek within the study area. Vegetation along the creek consists mostly of sandbar willow, with reed canarygrass,prairie cordgrass, stinging nettle(Urtica dioica), Canada thistle,and poison hemlock. Mature plains cottonwoods are scattered throughout the Big Dry Creek corridor within the study area. Trap lines in Group 2(Photos 4 and 5) contained a large amount of sandbar willow, Canada thistle, poison hemlock,and prairie cordgrass. Traps were placed on both sides of the Big Dry Creek riparian corridor and ran from east to west. Group 5 (Photo 6)was adjacent to Big Dry Creek but located directly beside an irrigation ditch. Dominant vegetation consists of snowberry(Symphoricarpos albus), reed canarygrass,prairie cordgrass, and Emory's sedge (Carex emoryi). Several irrigation ditches traverse the study area. Some linear stands of mature cottonwood occur along the ditches. Most of the ditches flow through heavily grazed areas or cropland. Group 3 was located along fringe wetlands. Dominant vegetation in these wetlands is mostly reed canarygrass and Emory's sedge, which occurs along the banks of the ditches. Upland areas vary greatly throughout the site. No native shortgrass prairie areas exist in the study area. Some upland pastures, dominated mostly by smooth brome, occur in riparian areas near the South Platte River. The majority of upland areas consist of irrigated cropland. Prominent crops in the areas are corn, onion, mustard, cabbage, and hay. This site historically has been used for agriculture,-including livestock grazing and agricultural crops. Current land use in the area consists of agriculture, sand and gravel mining, light industrial and rural residential, which has caused fragmentation of habitat along the South Platte River and Big Dry Creek, as well as habitat disturbance from livestock grazing. Portions of the South Platte River corridor have been severely 4 FORT LUPTON PROPERTIES PREBLE'S MEADOW JUMPING MOUSE SURVEY impacted by past agricultural practices and aggregate mining,both upstream and downstream of the site. Many areas adjacent to the river have been disturbed by human activity. Concrete rubble,trash, and junkyards occur along the river near old farms and industrial areas between Brighton and Fort Lupton. On the morning of June 15'h,a small portion of willow shrub vegetation in Group 5 was destroyed by road clearing activities. Past Studies Three trapping surveys and a high number of habitat evaluations have been conducted near the study area, with no Preble's being captured. Da Tim Bi Environmental conducted a trapping survey on the southern end of the Fort Lupton properties in 2000 (Riverbend property-letter attached), Greystone conducted a trapping survey 2.12 miles downstream on the South Platte River in 1998, Walsh Environmental LLC conducted a trapping survey near the City of Fort Lupton on the South Platte River 2.08 miles away from the study area in 2001,and Stoecker Ecological Consultants carried out a trapping survey on Wallenberg Lakes, 1 mile north of County Road 23 and 2.7 miles away from the study area in 2001 (Da Timbi 2000, Greystone 1998; Walsh 2001; Stoecker 2001). All trapping surveys were found to have no captures of Preble's. There also have been a few habitat evaluations conducted along Big Dry Creek, five being conducted in 1997 by Greystone approximately 3.38 miles away from the Fort Lupton properties, with all evaluations reporting no trapping necessary (Greystone 1997). Results Four rodent species were captured in 1,325 trapnights of effort. The species captured were western harvest mouse (Reithrodontomys meglotis),meadow vole (Microtus pennsylvanicus), deer mouse (Peromyscus maniculatus),and house mouse(Mus musculus). There were 79 captures of western harvest mice, 13 captures of meadow voles, 333 captures of deer mice, and 37 captures of house mice_ The total capture success rate was 349 percent. Percentage of traps available (unsprung) was 52 percent. On the morning of June 15'h, a bulldozer conducting road-clearing activities destroyed 25 traps in Group 5. Trapping results are shown in Table 2. 5 FORT LUPTON PROPERTIES PREBIE'S MEADOW JUMPING MOUSE SURVEY Wildlife observed in the area included white-tailed deer(Odocoileus virginianus), mule deer(Odocoileus hemonius),desert cottontail rabbits (Sylvilagus audubonii),wild turkey(Meleagris gallopavo),prairie dogs(Cynomys ludovicianus), garter snake (Thamnophis elegans vagrans),western meadowlarks (Sturnella neglecta), horned larks (Eremophila alpestris),rock dove(Columba livia),redwing blackbird (Agelaius phoeniceus), American robin (Turdus migratorius), black-billed magpie (Pica pica), killdeer(Charadrius vociferous),mourning dove (Zenaida macroura), and American goldfinch (Cardeulis tristis). Conclusions and Discussion - ERO conducted a site visit and determined that the site contained wetland and riparian vegetation with herbaceous and adequate shrub cover potentially suitable for Preble's habitat. A presence/absence survey was conducted in the best available potential Preble's habitat from June 14 through June 19,2004. No Preble's were captured along the South Platte River, Big Dry Creek, or the irrigation ditches located on the Fort Lupton properties in 1,325 trapnights of effort. Trapping effort exceeded the 750 trapnights recommended in the 2004 survey protocol to ensure that all potential Preble's habitat was more than adequately surveyed. The study area has vegetation characteristics suitable for Preble's but, based on this trapping effort, it appears unlikely that Preble's presently exist on or near the project site. A high number of trapping surveys and habitat evaluations have been conducted upstream and downstream on the South Platte River and along Big Dry Creek near the Fort Lupton properties with no captures of Preble's being reported. ERO has concluded that development of the proposed area would not likely adversely affect the continued existence of Preble's. This conclusion is based on the 1,325 trapnights conducted with no captures of Preble's, nearby negative trapping surveys, and the amount of fragmented and disturbed habitat on the Fort Lupton properties. Qualifications of Surveyors Qualifications of Ronald D. Beane have been previously submitted to the U.S. Fish and Wildlife Service and are available upon request. Mr. Beane is a certified ecologist 6 FORT LUPTON PROPERTIES PREBLE'S MEADOW JUMPING MOUSE SURVEY and a Zoology Research Associate with the Denver Museum of Nature and Science. He has performed small mammal investigations for more than 18 years throughout the Western U.S. He has completed more than 75 habitat assessments and 50 presence/absence surveys for Preble's over the last 7 years. Qualifications of Clint Henke have been previously submitted to the U.S. Fish and Wildlife Service and are available upon request. Clint R.Henke has a B.S. in biology from Fort Lewis Collegeand is currently working on obtaining a Master of Environmental Science from the University of Colorado at Denver. Clint has 3 years experience performing Preble's habitat assessments and presence/absence surveys, and has experience identifying and handling Preble's in the field. Qualifications of Moneka Worah are available upon request. Moneka Worah has a B.S. in environmental science from Willamette University. Moneka has experience handling small mammals in the field and has viewed Preble's specimens at the Denver Museum of Nature and Science. References Cited DA TI MBI Environmental. 2000. Presence/Absence survey for Preble's meadow jumping mouse Riverbend Operation. Prepared for Tuttle Applegate, Inc. Greystone. 1998. As viewed on U.S. Fish and Wildlife Service database 1998-2002. Greystone. 1998. As viewed on U.S. Fish and Wildlife Service database 1998-2002. Meaney, C.A. and N.W. Clippinger. 1995. A survey of Preble's meadow jumping mouse(Zapus hudsonius preblei) in Colorado. Prepared for Judy Sheppard, Colorado Division of Wildlife_ Natural Heritage Program. 1996. Vertebrate characterization abstract (State)Zapus hudsonius preblei_ Ryon, T.R. 1996. Evaluation of historical capture sites of the Preble's meadow jumping mouse in Colorado. Final Report. MSES Thesis University of Colorado at Denver. May 1. Stoecker Ecological Consultants. 2001. As viewed on U.S. Fish and Wildlife Service database 1998-2002. United States Soil Conservation Service (USSCS). 1980. Soil Survey of the Weld County Area, Colorado. U.S. Department of Agriculture Soil Conservation Service. U. S. Fish and Wildlife Service (USFWS). 2004. Survey Guidelines for Preble's Meadow Jumping Mouse. USFWS, Colorado Field Office. 7 FORT LUPrON PROPERTIES PRESLE's MEADOW JUMPING MOUSE SURVEY Walsh Environmental LLC. 2001. As viewed on U.S.Fish and Wildlife Service database 1998-2002. 8 PORT LUPTON PROPERTIES PHOTO LOG JUNE 19,2004 7 . . 'M. •A. "WC. 1 ♦ e .i L . Photo 1 - Group 1 along South Platte River, view to northwest. • o r 41 eat Yf'w J ^ c." r rife yT'yIb {�,,6r ik'I9�+ _�*i '+y+�,,y:+lt t' .?gam 2C}lsy� *.,. 7— +� t • 4 Photo 2 - Group 4 near South Platte River, view southwest. PORT LUPTON PROPERTIES PHOTO LOG JUNE 19,2004 r. h .. r ' k zr~ S tpY A ♦s. -t' T1 P # f'. + , �11 � . I.� C. .• �' ! } J `h it .* - 'Zii .4 Photo 3 -Group 4, view south. 1 0 ` Z.. ak 'h a wS � tG' "4 , � , � ..%a ` ,. . t i.;' Photo 4 - Group 2 along Big Dry Creek, view to southeast. FORT LUPTON PROPERTIES PHOTO LOG JUNE 19,2004 1 7+` '. * 7 , . ,.,, . 41., ‘ , -. 4 c w • .. -* + .Vie t i •. -4 ' ' > + ; t ',t -s t Photo 5 - Group 2, view of Big Dry Creek to east. ' yx I' i„ 4.` 'e`i . ' 4; air • v. .• ,,,• ', , '.r- • • p r. s-t • . SSE t } • • et .P }.',.'.' • 1 , .1 i r Y + c', } `N r4 or • i\fit' '44, f. p-.� • S:• ,'.e 1 .1%.",�d sT lit. i, . It •_ i ••9 r. N Photo 6 - Group 5 along Big Dry Creek, view west. Table 2. Lafarge Property Trapping Results June 14-19,2004 a Trap# Date Common Name Latin Name 4 6/15/2004 Deer Mouse Peromyscus maniculatus 5 6/15/2004 Deer Mouse Peromyscus maniculatus 11 6/15/2004 Deer Mouse Peromyscus maniculatus 13 6/15/2004 Deer Mouse Peromyscus maniculatus 16 6/15/2004 Deer Mouse Peromyscus maniculatus 24 6/15/2004 Deer Mouse Peromyscus maniculatus 27 6/15/2004 Deer Mouse Peromyscus maniculatus 32 6/15/2004 Deer Mouse Peromyscus maniculatus 40 6/15/2004 Deer Mouse Peromyscus maniculatus 42 6/15/2004 Deer Mouse Peromyscus maniculatus 46 6/15/2004 Deer Mouse Peromyscus maniculatus 51 6/15/2004 Deer Mouse Peromyscus maniculatus 70 6/15/2004 Deer Mouse Peromyscus maniculatus 75 6/15/2004 Deer Mouse Peromyscus maniculatus 76 6/15/2004 Deer Mouse Peromyscus maniculatus 87 6/15/2004 Deer Mouse Peromyscus maniculatus 88 6/15/2004 Deer Mouse Peromyscus maniculatus 96 6/15/2004 Deer Mouse Peromyscus maniculatus 98 6/15/2004 Deer Mouse Peromyscus maniculatus 107 6/15/2004 Deer Mouse Peromyscus maniculatus 107 6/15/2004 Deer Mouse Peromyscus maniculatus 109 6/15/2004 Deer Mouse Peromyscus maniculatus 111 6/15/2004 Deer Mouse Peromyscus maniculatus 116 6/15/2004 Deer Mouse Peromyscus maniculatus 121 6/15/2004 Deer Mouse Peromyscus maniculatus 122 6/15/2004 Deer Mouse Peromyscus maniculatus 124 6/15/2004 Deer Mouse Peromyscus maniculatus 125 6/15/2004 Deer Mouse Peromyscus maniculatus 128 6/15/2004 Deer Mouse Peromyscus maniculatus 130 6/15/2004 Deer Mouse Peromyscus maniculatus 131 6/15/2004 Deer Mouse Peromyscus maniculatus 133 6/15/2004 Deer Mouse Peromyscus maniculatus 134 6/15/2004 Deer Mouse Peromyscus maniculatus 136 6/15/2004 Deer Mouse Peromyscus maniculatus 137 6/15/2004 Deer Mouse Peromyscus maniculatus 138 6/15/2004 Deer Mouse Peromyscus maniculatus 140 6/15/2004 Deer Mouse Peromyscus maniculatus 181 6/15/2004 Deer Mouse Peromyscus maniculatus 184 6/15/2004 Deer Mouse Peromyscus maniculatus 189 6/15/2004 Deer Mouse Peromyscus maniculatus 203 6/15/2004 Deer Mouse Peromyscus maniculatus 207 6/15/2004 Deer Mouse Peromyscus maniculatus 210 6/15/2004 Deer Mouse Peromyscus maniculatus 212 6/15/2004 Deer Mouse Peromyscus maniculatus 214 6/15/2004 Deer Mouse Peromyscus maniculatus 215 6/15/2004 Deer Mouse Peromyscus maniculatus 216 6/15/2004 Deer Mouse Peromyscus maniculatus 216 6/15/2004 Deer Mouse Peromyscus maniculatus 220 6/15/2004 Deer Mouse Peromyscus maniculatus 221 6/15/2004 Deer Mouse Peromyscus maniculatus a 222 6/15/2004 Deer Mouse Peromyscus maniculatus Page 1 Table 2. Lafarge Property Trapping Results - June 14-19,2004 } 224 6/15/2004 - Deer MousePeromyscus maniculatus 226 6/15/2004 Deer Mouse Peromyscus maniculatus 227 6/15/2004 Deer Mouse Peromyscus maniculatus 230 6/15/2004 Deer Mouse Peromyscus maniculatus 231 6/15/2004 Deer Mouse Peromyscus maniculatus 232 6/15/2004 Deer Mouse - Peromyscus maniculatus 237 6/15/2004 Deer Mouse Peromyscus maniculatus 238 6/15/2004 Deer Mouse Peromyscus maniculatus 242 6/15/2004 Deer Mouse Peromyscus maniculatus 243 6/15/2004 Deer Mouse Peromyscus maniculatus 244 6/15/2004 Deer Mouse Peromyscus maniculatus 245 6/15/2004 Deer Mouse Peromyscus maniculatus 247 6/15/2004 Deer Mouse Peromyscus maniculatus 248 6/15/2004 Deer Mouse Peromyscus maniculatus 256 6/15/2004 Deer Mouse Peromyscus maniculatus 277 6/15/2004 Deer Mouse Peromyscus maniculatus 280 6/15/2004 Deer Mouse Peromyscus maniculatus 292 6/15/2004 Deer Mouse Peromyscus maniculatus 296 6/15/2004 Deer Mouse Peromyscus maniculatus 297 6/15/2004 Deer Mouse Peromyscus maniculatus 301 6/15/2004 Deer Mouse Peromyscus maniculatus 302 6/15/2004 Deer Mouse Peromyscus maniculatus 305 6/15/2004 Deer Mouse Peromyscus maniculatus 306 6/15/2004 Deer Mouse Peromyscus maniculatus 317 6/15/2004 Deer Mouse Peromyscus maniculatus 322 6/15/2004 Deer Mouse Peromyscus maniculatus 325 6/15/2004 Deer Mouse Peromyscus maniculatus �-. 349 6/15/2004 Deer Mouse Peromyscus maniculatus Deer Mouse Total 79 29 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 55 6/15/2004 Western Harvest Mouse Reilhrodontomys megalotis 62 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 66 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 67 6/15/2004 Western Harvest Mouse Reithrodontomys megatons 79 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 97 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 169 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 175 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 180 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 191 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 198 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 213 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 218 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 264 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 275 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis 304 6/15/2004 Western Harvest Mouse Reithrodontomys megatons 327 6/15/2004 Western Harvest Mouse Reithrodontomys megalotis Western Harvest Mouse Total 18 26 6/15/2004 House Mouse Mus musculus 30 6/15/2004 House Mouse Mus musculus 63 6/15/2004 House Mouse Mus musculus 81 6/15/2004 House Mouse Mus musculus Page 2 Table 2. Lafarge Property Trapping Results June 14-19,2004 83 6/15/2004 House Mouse Mus musculus 186 6/15/2004 House Mouse Mus musculus 217 6/15/2004 House Mouse Mus musculus 311 6/15/2004 House Mouse Mus musculus 312 6/15/2004 House Mouse Mus musculus 314 6/15/2004 House Mouse Mus musculus House Mouse Total 10 65 6/15/2004 Meadow Vole Microtuspennsylvanicus 233 6/15/2004 Meadow Vole Microtus pennsylvanicus Meadow Vole Total 2 1 6/15/2004 Tripped 3 6/15/2004 Tripped 7 6/15/2004 Tripped 8 6/15/2004 Tripped _ 9 6/15/2004 Tripped 15 6/15/2004 Tripped _ 19 6/15/2004 Tripped 20 6/15/2004 Tripped 22 6/15/2004 Tripped 23 6/15/2004 Tripped 25 6/15/2004 Tripped 36 6/15/2004 Tripped 54 6/15/2004 Tripped 101 6/15/2004 Tripped 169 6/15/2004 Tripped 170 6/15/2004 Tripped 170 6/15/2004 Tripped 171 6/15/2004 Tripped 179 6/15/2004 Tripped 228 6/15/2004 Tripped 266 6/15/2004 Tripped 320 6/15/2004 Tripped 332 6/15/2004 Tripped Tripped Total 23 2 6/15/2004 Disturbed 18 6/15/2004 Disturbed 73 6/15/2004 Disturbed 99 6/15/2004 Disturbed 219 6/15/2004 Disturbed r 326 6/15/2004 Disturbed Disturbed Total 6 153 6/15/2004 Destroyed 154 6/15/2004 Destroyed 160 6/15/2004 Destroyed 161 6/15/2004 Destroyed 162 6/15/2004 Destroyed 163 _ 6/15/2004 Destroyed 64 6/15/2004 Destroyed 165 6/15/2004 Destroyed 334 6/15/2004 Destroyed Destroyed"Total 9 4 6/16/2004 _ Deer Mouse Peromyscus maniculalus Page 3 Table 2. Lafarge Property Trapping Results June 14-19,2004 13 6/16/2004 Deer Mouse Peromyscus maniculatus , 13 6/16/2004 Deer Mouse Peromyscus maniculatus 14 6/16/2004 Deer Mouse Peromyscus maniculatus 16 6/16/2004 Deer Mouse Peromyscus maniculatus 17 6/16/2004 Deer Mouse Peromyscus maniculatus 19 6/16/2004 Deer Mouse Peromyscus maniculatus 20 6/16/2004 Deer Mouse Peromyscus maniculatus 23 6/16/2004 Deer Mouse Peromyscus maniculatus 24 6/16/2004 Deer Mouse Peromyscus maniculatus 27 6/16/2004 Deer Mouse Peromyscus maniculatus 28 6/16/2004 Deer Mouse Peromyscus maniculatus 29 6/16/2004 Deer Mouse Peromyscus maniculatus 41 6/16/2004 Deer Mouse Peromyscus maniculatus _ 43 6/16/2004 Deer Mouse Peromyscus maniculatus 47 6/16/2004 Deer Mouse Peromyscus maniculatus 50 6/16/2004 Deer Mouse Peromyscus maniculatus 51 6/16/2004 Deer Mouse Peromyscus maniculatus 52 6/16/2004 Deer Mouse Peromyscus maniculatus 55 6/16/2004 Deer Mouse Peromyscus maniculatus 67 6/16/2004 Deer Mouse Peromyscus maniculatus 70 6/16/2004 Deer Mouse Peromyscus maniculatus 76 6/16/2004 Deer Mouse Peromyscus maniculatus 77 6/16/2004 Deer Mouse Peromyscus maniculatus 79 6/16/2004 Deer Mouse Peromyscus maniculatus 86 6/16/2004 Deer Mouse Peromyscus maniculatus 87 6/16/2004 Deer Mouse Peromyscus maniculatus 91 6/16/2004 Deer Mouse Peromyscus maniculatus 97 6/16/2004 Deer Mouse Peromyscus maniculatus 99 6/16/2004 Deer Mouse Peromyscus maniculatus 102 6/16/2004 Deer Mouse Peromyscus maniculatus 104 6/16/2004 Deer Mouse Peromyscus maniculatus 106 6/16/2004 Deer Mouse Peromyscus maniculatus 109 6/16/2004 Deer Mouse Peromyscus maniculatus 111 6/16/2004 Deer Mouse Peromyscus maniculatus 112 6/16/2004 Deer Mouse Peromyscus maniculatus 114 6/16/2004 Deer Mouse Peromyscus maniculatus 116 6/16/2004 Deer Mouse Peromyscus maniculatus 117 6/16/2004 Deer Mouse Peromyscus maniculatus 118 6/16/2004 Deer Mouse Peromyscus maniculatus 119 6/16/2004 Deer Mouse Peromyscus maniculatus 121 6/16/2004 Deer Mouse Peromyscus maniculatus 123 6/16/2004 Deer Mouse Peromyscus maniculatus 124 6/16/2004 Deer Mouse Peromyscus maniculatus 128 6/16/2004 Deer Mouse Peromyscus maniculatus 130 6/16/2004 Deer Mouse Peromyscus maniculatus 132 6/16/2004 Deer Mouse Peromyscus maniculatus 135 6/16/2004 Deer Mouse Peromyscus maniculatus 136 6/16/2004 Deer Mouse Peromyscus maniculatus 138 6/16/2004 Deer Mouse - Peromyscus maniculatus 150 6/16/2004 Deer Mouse Peromyscus maniculatus 169 - 6/16/2004 Deer Mouse Peromyscus maniculatus 170 6/16/2004 Deer Mouse Peromyscus maniculatus Page 4 Table 2. Lafarge Property Trapping Results June 14-19,2004 181 6/16/2004 Deer Mouse Peromyscus maniculatus 182 6/16/2004 Deer Mouse Peromyscus maniculatus 183 6/16/2004 Deer Mouse Peromyscus maniculatus 184 6/16/2004 Deer Mouse Peromyscus maniculatus 185 6/16/2004 Deer Mouse Peromyscus maniculatus 186 _ 6/16/2004 Deer Mouse Peromyscus maniculatus 191 6/16/2004 Deer Mouse Peromyscus maniculatus 197 6/16/2004 Deer Mouse Peromyscus maniculatus 203 6/16/2004 Deer Mouse Peromyscus maniculatus 204 6/16/2004 Deer Mouse Peromyscus maniculatus 205 6/16/2004 Deer Mouse Peromyscus maniculatus 208 6/16/2004 Deer Mouse Peromyscus maniculatus 212 6/16/2004 Deer Mouse Peromyscus maniculatus 213 6/16/2004 Deer Mouse Peromyscus maniculatus 220 6/16/2004 Deer Mouse Peromyscus maniculatus 221 6/16/2004 Deer Mouse Peromyscus maniculatus 224 6/16/2004 Deer Mouse Peromyscus maniculatus ' 227 6/16/2004 Deer Mouse Peromyscus maniculatus 228 6/16/2004 Deer Mouse Peromyscus maniculatus 238 6/16/2004 Deer Mouse Peromyscus maniculatus 239 6/16/2004 Deer Mouse Peromyscus maniculatus 242 6/16/2004 Deer Mouse Peromyscus maniculatus 245 6/16/2004 Deer Mouse Peromyscus maniculatus 255 6/16/2004 Deer Mouse Peromyscus maniculatus 263 6/16/2004 Deer Mouse Peromyscus maniculatus 264 6/16/2004 Deer Mouse Peromyscus maniculatus 277 6/16/2004 Deer Mouse Peromyscus maniculatus 282 6/16/2004 Deer Mouse Peromyscus maniculatus 286 6/16/2004 Deer Mouse Peromyscus maniculatus 287 6/16/2004 Deer Mouse Peromyscus maniculatus 288 6/16/2004 Deer Mouse Peromyscus maniculatus 291 6/16/2004 Deer Mouse Peromyscus maniculatus 295 6/16/2004 Deer Mouse Peromyscus maniculatus 296 6/16/2004 Deer Mouse Peromyscus maniculatus 297 6/16/2004 Deer Mouse Peromyscus maniculatus 301 6/16/2004 Deer Mouse Peromyscus maniculatus 302 6/16/2004 Deer Mouse Peromyscus maniculatus 304 6/16/2004 Deer Mouse Peromyscus maniculatus 314 6/16/2004 Deer Mouse Peromyscus maniculatus 316 6/16/2004 Deer Mouse Peromyscus maniculatus 317 6/16/2004 Deer Mouse Peromyscus maniculatus 327 6/16/2004 Deer Mouse Peromyscus maniculatus Deer Mouse Total 95 31 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 32 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 56 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 80 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 95 6/16/2004 Western Harvest Mouse Reithrodomomys megalotis 98 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 103 6/16/2004 Western Harvest Mouse Reithrodonmmys megalotis 141 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 146 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis Page 5 Table 2. Lafarge Property Trapping Results June 14-19,2004 171 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 189 6/16/2004 Western.Harvest Mouse Reithrodontomys megatons 199 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 234 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 240 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 268 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 273 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 275 6/16/2004 Western Harvest Mouse Reithrodontomysmegatotis 311 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 315 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 321 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis 344 6/16/2004 Western Harvest Mouse Reithrodontomys megalotis Western Harvest Mouse Total 21 30 6/16/2004 House Mouse Mus musculus 42 6/16/2004 House Mouse Mus musculus • 46 6/16/2004 House Mouse Mus musculus 48 6/16/2004 House Mouse Mus musculus 57 6/16/2004 House Mouse Mus musculus 66 6/16/2004 House Mouse Mus musculus 88 6/16/2004 House Mouse Mus musculus 94 6/16/2004 House Mouse Mus musculus 180 6/16/2004 House Mouse Mus musculus 218 6/16/2004 House Mouse Mus musculus 219 6/16/2004 House Mouse Mus musculus 222 6/16/2004 House Mouse Mus musculus 309 6/16/2004 House Mouse Mus musculus 312 6/16/2004 House Mouse Mus musculus 313 6/16/2004 House Mouse Mus musculus 320 6/16/2004 House Mouse Mus musculus House Mouse Total 16 39 6/16/2004 Meadow Vole Micro:uspennsylvanicus 81 6/16/2004 Meadow Vole Microtuspennsylvanicus Meadow Vole Total 2 1 6/16/2004 Tripped 2 6/16/2004 Tripped 5 6/16/2004 Tripped 7 6/16/2004 Tripped 8 6/16/2004 Tripped 9 6/16/2004 Tripped 10 6/16/2004 Tripped 11 6/16/2004 Tripped 12 6/16/2004 Tripped 15 6/16/2004 Tripped 25 6/16/2004 Tripped 65 6/16/2004 Tripped 72 6/16/2004 Tripped 73 6/16/2004 Tripped 84 6/16/2004 Tripped 125 6/16/2004 Tripped 173 6/16/2004 Tripped 174 6/16/2004 Tripped 195 6/16/2004 Tripped Page 6 Table 2. Lafarge Property Trapping Results June 14-19,2004 I 210 6/16/2004 Tripped „� 214 6/16/2004 Tripped 216 6/16/2004 Tripped 228 6/16/2004 Tripped 229 6/16/2004 Tripped 230 6/16/2004 Tripped 278 6/16/2004 Tripped 293 6/16/2004 Tripped 350 6/16/2004 Tripped Tripped Total 28 3 6/16/2004 Disturbed 18 6/16/2004 Disturbed 22 6/16/2004 Disturbed 54 6/16/2004 Disturbed 63 6/16/2004 Disturbed 64 6/16/2004 Disturbed 68 6/16/2004 Disturbed 71 6/16/2004 Disturbed 115 6/16/2004 Disturbed 230 6/16/2004 Disturbed Disturbed Total 10 153 6/16/2004 Destroyed 154 6/16/2004 Destroyed 156 6/16/2004 Destroyed 157 6/16/2004 Destroyed 158 6/16/2004 Destroyed 160 6/16/2004 Destroyed 162 6/16/2004 Destroyed 164 6/16/2004 Destroyed 165 6/16/2004 Destroyed 166 6/16/2004 Destroyed 167 6/16/2004 Destroyed 172 6/16/2004 Destroyed 328 6/16/2004 Destroyed 333 6/16/2004 Destroyed 334 6/16/2004 Destroyed Destro+ed Total 15 3 6/18/2004 Deer Mouse Peromyscus maniculatus 4 6/18/2004 Deer Mouse Peromyscus maniculatus 6 6/18/2004 Deer Mouse Peromyscus maniculatus 7 6/18/2004 Deer Mouse Peromyscus maniculatus 12 6/18/2004 Deer Mouse Peromyscus maniculatus 13 6/18/2004 Deer Mouse Peromyscus maniculatus 13 6/18/2004 Deer Mouse Peromyscus maniculatus 14 6/18/2004 Deer Mouse Peromyscus maniculatus 18 6/18/2004 Deer Mouse Peromyscus maniculatus 19 6/18/2004 Deer Mouse Peromyscus maniculatus 20 6/18/2004 Deer Mouse Peromyscus maniculatus 21 6/18/2004 Deer Mouse Peromyscus maniculatus 22 6/18/2004 Deer Mouse Peromyscus maniculatus 23 6/18/2004 Deer Mouse Peromyscus maniculatus 24 6/18/2004 Deer Mouse Peromyscus maniculatus Page 7 Table 2. Lafarge Property Trapping Results June 14-19,2004 • 26 6/18/2004 Deer Mouse Peromyscus maniculatus 28 6/18/2004 Deer Mouse Peromyscus maniculatus 29 6/18/2004 Deer Mouse Peromyscus maniculatus 30 6/18/2004 Deer Mouse Peromyscus maniculatus 31 6/18/2004 Deer Mouse Peromyscus maniculatus • 32 6/18/2004 Deer Mouse Peromyscus maniculatus 40 6/I 8/2004 Deer Mouse Peromyscus maniculatus 41 6/18/2004 Deer Mouse Peromyscus maniculatus 49 6/18/2004 Deer Mouse Peromyscus maniculatus 51 6/18/2004 Deer Mouse Peromyscus maniculatus 64 6/18/2004 Deer Mouse Peromyscus maniculatus 72 6/18/2004 Deer Mouse Peromyscus maniculatus 73 6/18/2004 Deer Mouse Peromyscus maniculatus 76 _ 6/18/2004 Deer Mouse Peromyscus maniculatus 86 6/18/2004 Deer Mouse Peromyscus maniculatus 87 6/18/2004 - Deer Mouse Peromyscus maniculatus 97 6/18/2004 Deer Mouse Peromyscus maniculatus 98 - 6/18/2004 Deer Mouse Peromyscus maniculatus 106 6/18/2004 Deer Mouse Peromyscus maniculatus 107 6/18/2004 Deer Mouse Peromyscus maniculatus 112 6/18/2004 Deer Mouse Peromyscus maniculatus 113 6/18/2004 Deer Mouse Peromyscus maniculatus 115 6/18/2004 Deer Mouse Peromyscus maniculatus 116 6/18/2004 Deer Mouse Peromyscus maniculatus 119 6/18/2004 Deer Mouse Peromyscus maniculatus 120 6/18/2004 Deer Mouse Peromyscus maniculatus 122 6/18/2004 Deer Mouse Peromyscus manicularus 123 6/18/2004 Deer Mouse Peromyscus maniculatus 124 6/18/2004 Deer Mouse Peromyscus maniculatus 125 6/18/2004 Deer Mouse Peromyscus maniculatus 134 6/18/2004 Deer Mouse Peromyscus maniculatus 136 6/18/2004 Deer Mouse Peromyscus maniculatus 141 6/18/2004 Deer Mouse Peromyscus manicularus 170 6/18/2004 Deer Mouse Peromyscus maniculatus 175 6/18/2004 Deer Mouse Peromyscus maniculatus 183 6/18/2004 Deer Mouse Peromyscus maniculatus 185 6/18/2004 Deer Mouse Peromyscus maniculatus 197 6/18/2004 Deer Mouse Peromyscus maniculatus 197 6/18/2004 Deer Mouse Peromyscus maniculatus 200 6/18/2004 Deer Mouse Peromyscus maniculatus 205 6/18/2004 Deer Mouse Peromyscus maniculatus 206 6/18/2004 Deer Mouse Peromyscus maniculatus 207 6/18/2004 Deer Mouse Peromyscus maniculatus 210 6/18/2004 Deer Mouse Peromyscus manicularus 212 6/18/2004 Deer Mouse Peromyscus maniculatus 218 6/18/2004 Deer Mouse Peromyscus maniculatus 220 6/18/2004 Deer Mouse Peromyscus maniculatus 226 6/18/2004 Deer Mouse Peromyscus maniculatus 234 6/18/2004 Deer Mouse Peromyscus maniculatus 236 6/18/2004 Deer Mouse Peromyscus maniculatus 238 6/18/2004 Deer Mouse - Peromyscus maniculatus 242 6/18/2004 Deer Mouse Peromyscus maniculatus r Page 8 Table 2. Lafarge Property Trapping Results June 14-19,2004 255 6/18/2004 Deer Mouse Peromyscus maniculatus 257 6/18/2004 Deer Mouse Peromyscus maniculatus 275 6/18/2004 Deer Mouse Peromyscus maniculatus 277 6/18/2004 Deer Mouse Peromyscus maniculatus 286 - 6/18/2004 Deer Mouse Peromyscus maniculatus 287 6/18/2004 Deer Mouse Peromyscus maniculatus 289 6/18/2004 Deer Mouse Peromyscus maniculatus 290 6/18/2004 Deer Mouse Peromyscus maniculatus 294 6/18/2004 Deer Mouse Peromyscus maniculatus 296 6/18/2004 Deer Mouse Peromyscus maniculatus 301 6/18/2004 Deer Mouse Peromyscus maniculatus 320 6/18/2004 Deer Mouse Peromyscus maniculatus 323 6/18/2004 Deer Mouse Peromyscus maniculatus 324 • 36/18/2004 Deer Mouse Peromyscus maniculatus 347 6/18/2004 Deer Mouse Peromyscus maniculatus Deer Mouse Total 82 1 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 2 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 8 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 9 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 10 - 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 16 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 27 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 50 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 79 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 84 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 88 6/18/2004 Western Harvest Mouse Reithrodontomys megatons 91 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 91 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 138 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 143 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 169 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 186 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 191 6/18/2004 Western Harvest Mouse Reithrodontomys megatons 194 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 198 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 268 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 276 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 288 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 304 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 305 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 316 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis 321 6/18/2004 Western Harvest Mouse Reithrodontomys megalotis Western Harvest Mouse Total 27 33 6/18/2004 House Mouse Mus musculus 38 6/18/2004 House Mouse Mus musculus 43 6/18/2004 House Mouse Mus musculus 46 6/18/2004 House Mouse Mus musculus 70 6/18/2004 House Mouse Mus musculus 89 6/18/2004 House Mouse Mus musculus 99 6/18/2004 !louse Mouse Mus musculus 219 6/18/2004 House Mouse ,tlus musculus Page 9 Table 2. Lafarge Property Trapping Result June 14-19,.2004 1 House Mouse Total 8 35 6/18/2004 Meadow Vole Microturpennsylvanicus 329 6/18/2004 - Meadow Vole . Microtuspennsylvanicus Meadow Vole Total 2 15 6/18/2004 Tripped 25 6/18/2004 Tripped 68 6/18/2004 Tripped 69 . 6/18/2004 Tripped 101 6/18/2004 Tripped 102 6/18/2004 Tripped 103 6/18/2004 Tripped 114 6/18/2004 Tripped 189 6/18/2004 Tripped 204 6/18/2004 Tripped 213 6/18/2004 Tripped 214 6/18/2004 Tripped 221 6/18/2004 Tripped 222 6/18/2004 Tripped 223 6/18/2004 Tripped 224 6/18/2004 Tripped 225 6/18/2004 Tripped 229 6/18/2004 Tripped 230 6/18/2004 Tripped 231 6/18/2004 Tripped 232 6/18/2004 Tripped 241 6/18/2004 Tripped 256 6/18/2004 Tripped �-. 258 6/18/2004 Tripped 293 6/18/2004 Tripped 299 6/18/2004 Tripped 300 6/18/2004 Tripped 319 6/18/2004 Tripped 325 6/18/2004 Tripped Tripped Total 29 55 6/18/2004 Disturbed 56 6/18/2004 Disturbed 57 6/18/2004 Disturbed 71 6/18/2004 Disturbed 110 6/18/2004 Disturbed 11I 6/18/2004 Disturbed 346 6/18/2004 Disturbed Disturbed Total 7 I 6/19/2004 Deer Mouse Peromyscus maniculatus 2 6/19/2004 Deer Mouse Peromyscus maniculatus 3 6/19/2004 Deer Mouse Peromyscus maniculatus 4 6/19/2004 Deer Mouse Peromyscus maniculatus 6 6/19/2004 Deer Mouse Peromyscus maniculatus 7 6/19/2004 Deer Mouse Peromyscus maniculatus 9 6/19/2004 Deer Mouse Peromyscus maniculatus 10 6/19/2004 Deer Mouse Peromyscus maniculatus 12 6/19/2004 Deer Mouse Peromyscus maniculatus 12 6/19/2004 Deer Mouse Peromyscus maniculatus Page 10 • Table 1 Lafarge Property Trapping Results June 14-19,2004 • • 13 6/19/2004 Deer Mouse Peromyscus maniculatus „^ 14 6/19/2004 Deer Mouse Peromyscus maniculatus 15 6/19/2004 Deer Mouse Peromyscus maniculatus 16 6/19/2004 Deer Mouse Peromyscus maniculatus 19 6/19/2004 Deer Mouse Peromyscus maniculatus 20 6/19/2004 Deer Mouse Peromyscus maniculatus 20 6/19/2004 Deer Mouse Peromyscus maniculatus 22 6/19/2004 Deer Mouse Peromyscus maniculatus 22 6/19/2004 Deer Mouse Peromyscus maniculatus 22 - 6/19/2004 Deer Mouse Peromyscus maniculalus 22 6/19/2004 Deer Mouse Peromyscus maniculatus 23 6/19/2004 Deer MousePeromyscus maniculatus 25 6/19/2004 Deer Mouse Peromyscus maniculatus 48 6/19/2004 Deer Mouse Peromyscus maniculatus 95 6/19/2004 Deer Mouse Peromyscus maniculatus 104 6/19/2004 Deer Mouse Peromyscus maniculatus 109 6/19/2004 Deer Mouse Peromyscus maniculatus 112 6/19/2004 Deer Mouse Peromyscus maniculatus 114 6/19/2004 Deer Mouse Peromyscus maniculatus 115 6/19/2004 Deer Mouse Peromyscus maniculatus 116 6/19/2004 Deer Mouse Peromyscus maniculatus 117 6/19/2004 Deer Mouse Peromyscus maniculatus 117 6/19/2004 Deer Mouse Peromyscus maniculatus 118 6/19/2004 Deer Mouse Peromyscus maniculatus 119 6/19/2004 Deer Mouse Peromyscus maniculatus 121 6/19/2004 Deer Mouse Peromyscus maniculatus 123 6/19/2004 Deer Mouse Peromyscus maniculatus 124 6/19/2004 Deer Mouse Peromyscus maniculatus 125 6/19/2004 Deer Mouse Peromyscus maniculatus 128 6/19/2004 Deer Mouse Peromyscus maniculatus 129 6/19/2004 Deer Mouse Peromyscus maniculatus 130 6/19/2004 Deer Mouse Peromyscus maniculatus 133 6/19/2004 Deer Mouse Peromyscus maniculatus 134 6/19/2004 Deer Mouse Peromyscus maniculatus 136 6/19/2004 Deer Mouse Peromyscus maniculatus 138 6/19/2004 Deer Mouse Peromyscus maniculatus 147 6/19/2004 Deer Mouse Peromyscus maniculatus 184 6/19/2004 Deer Mouse Peromyscus maniculatus 186 6/19/2004 Deer Mouse Perotyscus maniculatus 197 6/19/2004 Deer Mouse Peromyscus maniculatus 205 6/19/2004 Deer Mouse Peromyscus maniculatus 206 6/19/2004 Deer Mouse Peromyscus maniculatus 210 6/19/2004 Deer Mouse Peromyscus maniculatus 212 6/19/2004 Deer Mouse Peromyscus maniculatus 214 6/19/2004 Deer Mouse Peromyscus maniculatus 216 6/19/2004 Deer Mouse Peromyscus maniculatus 218 6/19/2004 Deer Mouse Peromyscus maniculatus 221 6/19/2004 Deer Mouse Peromyscus maniculatus 222 6/19/2004 Deer Mouse Peromyscus maniculatus 226 6/19/2004 Deer Mouse Peromyscus maniculatus 232 6/19/2004 Deer Mouse Peromyscus maniculatus 240 6/19/2004 Deer Mouse Peromyscus maniculatus Page 11 Table 2. Lafarge Property Trapping Results June 14-19,2004 241 6/19/2004 Deer Mouse Peromyscus maniculatus 0.--. 242 6/19/2004 Deer Mouse Peromyscus maniculatus 245 6/19/2004 Deer Mouse Peromyscus maniculatus 247 6/19/2004 Deer Mouse Peromyscus maniculatus 248 6/19/2004 Deer Mouse Peromyscus maniculatus 255 6/19/2004 Deer Mouse Peromyscus maniculaius 256 6/19/2004 Deer Mouse Peromyscus maniculatus 265 6/19/2004 Deer Mouse Peromyscus maniculatus 287 6/19/2004 Deer Mouse Peromyscus maniculatus 294 6/19/2004 Deer Mouse Peromyscus maniculatus 297 6/19/2004 Deer Mouse Peromyscus maniculatus 309 6/19/2004 Deer Mouse Peromyscus maniculatus 330 6/19/2004 Deer Mouse Peromyscus maniculatus 345 6/19/2004 Deer Mouse Peromyscus maniculatus 350 6/19/2004 Deer Mouse Peromyscus maniculatus Deer Mouse Total 77 84 6/19/2004 Western Harvest Mouse Reithrodontomys megalotis 103 6/19/2004 Western Harvest Mouse Reithrodontomys megatons 105 6/19/2004 Western Harvest Mouse Reithrodontomys megaloris 124 6/19/2004 Western Harvest Mouse Reithrodontomys megatons 146 6/19/2004 Western Harvest Mouse Reithrodontomys megatons 183 6/19/2004 Western Harvest Mouse Reithrodontomys megaloris 191 6/19/2004 Western Harvest Mouse Reithrodontomys megaloris 194 6/19/2004 Western Harvest Mouse Reithrodontomys megatons 198 6/19/2004 Western Harvest Mouse Reithrodontomys megalotis 211 6/19/2004 Western Harvest Mouse Reithrodontomys megalotis 237 6/19/2004 Western Harvest Mouse Reithrodontomys megaloris 245 6/19/2004 Western Harvest Mouse Reithrodontomys megalotis 283 6/19/2004 Western Harvest Mouse Reithrodontomys megaloris Western Harvest Mouse Total 13 40 6/19/2004 House Mouse Mus musculus 220 6/19/2004 House Mouse Mus musculus 224 6/19/2004 House Mouse Mus musculus House Mouse Total 3 101 6/19/2004 Meadow Vole Microtus pennsylvanicus 148 6/19/2004 Meadow Vole Microtus pennsylvanicus 238 6/19/2004 - Meadow Vole Microtus pennsylvanicus 286 6/19/2004 Meadow Vole Microtus pennsylvanicus 303 6/19/2004 Meadow Vole Microtus pennsylvanicus 11 6/19/2004 Meadow Vole Microtus pennsylvanicus 347 6/19/2004 Meadow Vole Microtus pennsylvanicus Meadow Vole Total 7 26 6/19/2004 Tripped 27 6/19/2004 Tripped 41 6/19/2004 Tripped 47 6/19/2004 Tripped 55 6/19/2004 Tripped 56 6/19/2004 Tripped 57 6/19/2004 Tripped 64 6/19/2004 Tripped 65 6/19/2004 Tripped 66 6/19/2004 Tripped r. Page 12 Table 2. Lafarge Property Trapping Results June 14-19,2004 67 6/19/2004 Tripped 79 6/19/2004 Tripped . 81 6/19/2004 Tripped. 83 6/19/2004 Tripped 92 6/19/2004 Tripped 213 6/19/2004 Tripped 225 6/19/2004 Tripped 227 6/19/2004 Tripped 228 6/19/2004 Tripped 231 6/19/2004 Tripped 252 6/19/2004 Tripped 253 6/19/2004 Tripped 344 6/19/2004 Tripped Tripp d Total 23 29 6/19/2004 Disturbed 30 6/19/2004 Disturbed 31 6/19/2004 Disturbed 32 6/19/2004 Disturbed 38 6/19/2004 Disturbed 43 6/19/2004 Disturbed 50 6/19/2004 Disturbed 51 6/19/2004 Disturbed 52 6/19/2004 Disturbed ` 53 6/19/2004 Disturbed 54 6/19/2004 Disturbed 59 6/19/2004 Disturbed 62 6/19/2004 Disturbed a 68 6/19/2004 Disturbed 69 6/19/2004 Disturbed 70 6/19/2004 Disturbed 71 6/19/2004 Disturbed 73 6/19/2004 Disturbed 96 6/19/2004 Disturbed 97 6/19/2004 Disturbed 98 6/19/2004 Disturbed 99 6/19/2004 Disturbed 258 6/19/2004 Disturbed Disturbed Total 23 Number of Available Traps 1 152 Number of Unavailable Traps 173 Total Trapnights 1325 Number Ca tared: Capture Success:34.9% Deer Mouse:333 Closed and Empty: 7.8% Western Harvest Mouse: 79 Disturbed Traps:3.5% House Mouse:37 Destroyed Traps: 1.8% Meadow Vole: 13 Available Traps: 52% Surveyors:Ron Beane,Steve Buller,Clint Henke,and Moneka Worah Page 13 �t i '• State*Uishway 52 '• . L,.. y,,1`4, ^ , .44'''' wn gym.. . ..9• E q la,! w • • ," -- J v A, tit pi, It c i1 Fort Lubton ' (.. A, .. MI.. -r O ammo, I •Property removed 1 w from DMG permit . ' c , . boundary 4:umi t-_ I i,+` l 04 i nN Nv 1 1 i Filism — ... • kV r. • c. Weld County Road 6 ° 14k1 4 1st. . ED(l Fort Lupton Properties Figure 1 1��'+ TIN,1.66W,W'h Sections 7, 18 and 19 and T1 N,1167W,NE 1/.Section 24, Site Location ERO Resources Cora N'h Section 13,Section 12 and the SW 1/4 Sedion 1 1842 Clark.«,Sinn! UTM Coordinates:Zone 13;4434000mN and 514000 mE Den.ar CO 80318 USGS Fort Lupton,CO .Weld County,Colorado 303) 8301188N Prepared for Lafarge NA Fa,.(3031 830-1199Milliin file 2617 Figure 1 a. 0 2000 /000 reel July 2004 mas * Ay Ti Se + m Al ) S r; fir �i 4 •Y Y ♦ ` ;` a z tom: I ." ° removed 17 6 permit +� st .ry �jyj � '.6 illts . t ° O • la v" Z I 0 s a t t1y` e. r sitaY y ,s T wk KO ER Figure 2 Trap line locations Preble's Trapping Fro Resources Coro Survey Transact Locations ,.^ 1842 Clarkson Street Denver,Co 80218 N Prepared fix Sorge NA ;3031 8301188 A File.2647 figure 2PMIM of Fox 13031 830-I 199 0 2000 4000 feet July 2004 Preble's Meadow Jumping Mouse Presence/Absence Survey acceptance,USFWS A-` • Ft Lupton Pd CMG 112 Permit Pone 35 of 81 sew., dr United States Department of the Interior • FISH AND WILDLIFE SERVICE ^r nrm n0_ ^^ y .e Ecological Services f tf p- �"`" �� Colorado Field Office 755 Parfet Street, Suite 361 slF 7 :. (�',^,tt Lakewood, Colorado 80215 Mi!e IN REPLY REFER TO: j ':--''U ` - L" ES/CO: T&E/PMTM/Trap i1Lii�___----- -- Mail Stop 65412 AUG 1 9 2004 Ronald Beane ERO Resources Corporation 1842 Clarkson Street Denver, Colorado 80218 Dear Mr. Beane: We are responding to your letter of August 10, 2004, requesting clearance under the authority conferred to the U.S. Fish and Wildlife Service (Service) by the Endangered Species Act of 1973 (ESA), as amended (16 U.S.C. 1531 et seq.). The Service has reviewed the Preble's meadow jumping mouse, Zapus hudsonius prebiei (Preble's), habitat assessment and trapping survey report for the proposed future aggregate mining activities on the Lafarge Fort Lupton Properties between Weld County Road 23 to the west,Highway 52 to the north, Weld County Road 6 to the south and the South Platte River to the east in Weld County, Colorado. This project, as proposed, may disturb wetlands and other riparian habitats. Based on the information provided, including the negative trapping results from the five trapping areas located on the South Platte River, Big Dry Creek, and an unnamed irrigation ditch, the Service finds the report acceptable and agrees that a population of Preble's is not likely to be present within the subject area. Thus, the Service concludes that the proposed project on this site should not have direct adverse affects to Preble's. Since Preble's populations exist downstream from the site, actions on the site that result in significant modifications of Preble's habitat downstream (for example, through alteration of existing flow regimes, or sedimentation) may be subject to provisions of the ESA. Additionally, a Section 404 permit may be required by the U.S. Army Corps of Engineers under the Clean Water Act (33 U.S.C.1344 et seq.) if the proposed construction may impact jurisdictional wetlands or waters of the U.S. at the subject site. Since 1978, the Service has consistently taken the position in its section 7 consultations that Federal agency actions resulting in existing or new water depletions to the Platte River system may affect the endangered whooping crane (Grus americana), endangered interior least tern (Sterna antillaruni), threatened piping plover(Cluerruhius me)odus), endangered pallid sturgeon (Scaphirhynchus albus), threatened bald eagle (Haliaeetus leucocephalus), endangered Eskimo curlew (Numenius borealis), threatened western prairie fringed orchid (Pia:an: hero praeclara), and designated critical habitat for the whooping crane and piping plover in the central Platte River in Nebraska. In general, depletions include evaporative losses and/or consumptive use less rctum flows. Project elements that could be associated with depletions to the Platte River system include, but arc not limited to,ponds (detention/recreation/irrigation storage), lakes (recreation/irrigation storage/municipal storage/power generation), reservoirs (recreation/irrigation storage/municipal storage/power generation), pipelines, wells, diversion structures, and water treatment facilities. Lafarge Fort Lupton Page 2 Please contact the federal agency associated with this project If the federal agency and the applicant determine that there are depletions associated with Lafarge North America's proposed future aggregate mining project,the federal agency should request initiation of formal section 7 consultation in a letter to my office. A request for initiation of formal section 7 consultation on water-related projects associated with depletions to the central Platte River should include a complete project description including water-related project elements and origin of water associated with the proposed project; an estimate of the amount and timing(by month) of average annual water depletion (both existing and new depletions); and describe methods of arriving at such estimates. Completion of the consultation will be based on the date of receipt of the information required to conduct the consultation. If a formal section 7 consultation is required, the Service will make every effort to accommodate the applicant's schedules to prevent project delays. If your office or the applicant would like to discuss the proposed project in relation to Platte River system depletive issues in Colorado, please contact Sandy Vana-Miller of my staff at (303) 275-2370. Please note that this Preble's clearance is valid for one year from the date of this letter. Should additional information on listed or proposed species become available, this determination may be reconsidered under the ESA. If the proposed project has not-commenced within one year, please contact the Colorado Field Office to request an extension. If we can be of further assistance, please contact Barbara Spagnuolo of my staff at (303) 275-2370. Sincerely, Susan C. Linner Colorado Field Supervisor cc: U.S. Army Corps of Engineers,Denver Regulatory Office FWS/CFO: Sandy Vana-Miller FWS/CFO: B. Spagnuolo Rcfcrcncc:BJS\weld\LaLusc_FtLupmn.wpd rnr,-i o n� EXHIBIT I Soils Information Excerpts from the Soil Survey of Weld County, Southern Part(SCS, 1980) are provided in this Exhibit. Most of the soils in the proposed areas are aquolls,aquents, and bankard sandy loam that commonly occur on bottomlands, floodplains,and natural drainageways. These are generally deep,poorly drained soils that formed in recent alluvium. These soils are primarily suited for pasture, rangeland, and wildlife habitat. They are well suited to reestablishment of grasses as proposed in the Reclamation Plan. If recommended by SCS,soil samples will be subjected to agricultural testing to evaluate fertilizer requirements. The affected lands within the permit area contain many types of soils. The U.S. Department of Agriculture Soil Conservation Service delineates the extents of, and characterizes each soil type in a soil survey. The Soils Map, enclosed at the end of this Exhibit, illustrates where these soils are present within the permit area. The following are descriptions of the ' soils found in the area. 3—Aquolls and Aquents,gravelly substratum This nearly level map unit is on bottomlands and floodplains of all the major streams in the survey area. Aquolls, which have a dark colored surface layer, make up about 60 percent of the unit. Aquents,which have a lighter colored surface layer, make up about 35 percent. About 5 percent is Aquepts and Bankard sandy loam. These are deep,poorly drained soils that formed in recent alluvium. No one pedon is typical. Commonly the soils have a mottled, mildly alkaline to moderately alkaline loamy or clayey surface layer and underlying material and are underlain by sand or sand and gravel within 48 inches. In places they have a gleyed layer in the underlying material. Most of the acreage is subject to flooding. The water table is at or near the surface early in spring and recedes to as deep as 48 inches late in fall in some years. These soils are used for rangeland and wildlife habitat. Some small area have been reclaimed by major drainage and leveling and are used for irrigated crops. The potential native vegetation is dominated by alkali sacaton, switchgrass, and western wheatgrass. Saltgrass, sedge, rush and alkali bluegrass are also prominent. Potential production ranges from 3000 pounds per acre in favorable years to 2000 pounds in unfavorable years. As range condition deteriorates, the switchgrass, alkali sacaton, and western wheatgrass decrease and saltgrass, sedge and rush increase. Management of vegetation should be based on taking half and leaving half of the total annual production. Seeding is difficult and costly because numerous tillage practices are required to eliminate the saltgrass sod. Switchgrass, western wheatgrass, alkali sacaton, tall n. !won Pit BAK;112 Permit Page 36 of 81 wheatgrass, and tall fescue are suitable for seeding. They can be seeded into a clean, firm seedbed. Seedbed preparation usually requires more than 1 year to eliminate the saltgrass sod. A grass drill should be used. Seeding early in spring has proven most successful Wetland wildlife, especially waterfowl,utilizes this unit. The wetland plants provide nesting and protective cover, as well as food. The nearby irrigated cropland, where wildlife obtain much of their food and find protective cover,makes this unit valuable to both wetland and openland wildlife. Open land wildlife, especially pheasant,uses this unit for cover and nesting. Deer find excellent cover in some areas. These valuable wildlife areas should be protected from fire and fenced to prevent encroachment and overuse by livestock. They should not be drained. These soils have good potential as a source of sand and gravel. Capability subclass Viw; Salt Meadow range site. 8—Ascalon loam, 0-1 %s/dpes This is a deep, well drained soil on terraces at elevation of 4500 to 4900 feet. It formed in alluvium deposited by the major rivers in the survey area. Included in mapping are small areas where sand and gravel are with in a depth of 60 inches. Also included are small areas of soils that have a clay loam subsoil. Typically, the surface layer of this Ascalon soil is brown loam aboutl0 inches thick. The subsoil is brown and yellowish brown sandy clay loam about 15 inches thick. The substratum to a depth 60 inches is calcareous sandy loam. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. This soil is used almost entirely for irrigate crops. It is suited to all crops commonly grown in the area, including corn, sugar beets, beans alfalfa, small grain,potatoes, and onion. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. Few conservation practices are needed to maintain top yields. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wilildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many non-game species can be Ft Lupton At OMG 111 Permit Page 37 of 81 attracted by establishing areas for nesting and escape cover.For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has good potential for urban and recreational development. Increased population growth in the survey area has resulted in increased homesite construction. The chief limiting soil features for urban development are the shrink-swell potential of the subsoil as it wets and dries and the limited ability of this soil to support a load. Septic tank absorption fields function properly, but community sewage systems should be provided if the population density increases. Because of the moderately rapid permeability of the substratum, sewage lagoons must be sealed. Lawns, shrubs, and trees grow well. Capability class I irrigated. 9-Ascalon Loam, 1-3%slopes This is a deep, well drained soil on terraces at elevations of 4500 to 4900 feet. It formed in alluvium deposited by the major rivers in the survey area. Included in mapping are small areas where sand and gravel are within a depth of 60 inches.Also included are small areas of soils that have a clay loam subsoil. Typically the surface layer of this Ascalon soil is brown loam about 10 inches thick. The subsoil is brown and yellowish brown sandy clay loam about 15 inches thick. The substratum to a depth of 60 inches is calcareous sandy loam. r Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is medium, and the erosion hazard is low. This soil is used almost entirely for irrigated crops. It is suited to all crops commonly grown in the area, including corn, sugar beets, beans, alfalfa, small grain, potatoes, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. land leveling, ditch lining, and installing pipelines may be needed for proper water application. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern red cedar, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wildlife is an important use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by Ft Lupton Pit DMG 112 Permit Page 38 of 81 establishing areas for nesting and escape cover. For pheasants,undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has good potential for urban and recreational development. Increased population growth in the survey area has resulted in increased homesite construction. The chief limiting soil features for urban development are the shrink-swell potential of the subsoil as it wets and dries and the limited ability of this soil to support a load. Septic tank absorption fields function properly, but community sewage systems should be provided if the population density increases. Because of the moderately rapid permeability of the substratum, sewage lagoons must be sealed. Lawns, shrubs, and trees grow well. Capability subclass lie irrigated. 10-Bankard sandy loam, 0-3%slope This is a deep, somewhat excessively drained soil on flood plains atelevations of 4450 to 5000 feet. It formed in stratified recent alluvium along streams and rivers. Included in mapping are numerous sand and gravel bards and small areas of noncalcareous soils. Typically the surface layer of this Bankard soild is brown sandy loam about 4 inches thick. The underlying material to a depth of 60 inches is pale brown calcareous sand stratified with thin lenses of sandy loam, loam, and fine gravel. Permeability is moderately rapid. Available water capacity is low. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. This soil is suited to limited cropping. It is sandy and subject to flooding. Pasture is the best use. Tall wheatgrass, tall fescue, and annual sweeclover are some of the most suitable crops. Light, frequent irrigation by furrows and flooding is best. Commercial fertilizer improves the amount and value of forage produced. The potential native vegetation is dominated by switchgrass, indiangrass, sand bluestem, sand reedgrass, sideoats grama, needleandthread, and blue grama. Much of this range site includes other soils and vegetation in such a complex pattern that it is difficult to map them separately. Potential production ranges from 2500 pounds per acre in favorable years to 1500 pounds in unfavorable years. As range condition deteriorates, the tall and mid grasses decrease; blue grama, sand dropseed, and forbs increase; and forage production drops. Undesirable weeds and annuals invade the site as range condition becomes poorer. Management of vegetation should be based on taking half and leaving half of the total annual production. Seeding is desirable only in areas large enough to interseed or to prepare a seedbed. Switchgrass, sand bluestem, sand reedgrass, sideoats grama, little bluestem, blue grama, pubescent wheatgrass, and intermediate wheatgrass are suitable for seeding. This soil can be seeded by using an interseeder or a firm clean sorghum stubble. A grass drill is required. Seeding early in spring has proven most successful. Ft Lupton Pit ()MG In Permit Page 39 of81 This soil is generally not suited to the establishment and growth of tress and shrubs. Onsite investigation is needed to determine feasibility and possible tree and shrub species. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture.Rangeland wildlife, for example, deer and antelope, can be attracted by managing livestock grazing and reseeding where needed. This soil is not suited to urban or recreational development because of the flood hazard. Capability subclass IVw irrigated,Vlw nonirrigated; Sandy Bottom land range site. 19- Colombo Clay Loam, 0-1 %slopes This is a deep,well drained soil on flood plains and terraces at elevations of 4600 to 4780 feet. It formed in stratified calcareous alluvium. Included in mapping are small areas of soils that have a loam surface layer and some small leveled areas. Typically the surface layer of this Colombo soil is dark grayish brown clay loam about 14 inches thick. The upper 7 inches of the underlying material is pale brown stratified clay loam and loam. The lower part to a depth of 60 inches is very pale brown loam stratified with thin lenses of fine sand, medium sand, and clay loam. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. In irrigated areas this soil is suited to crops commonly grown in the area such as corn, sugar beets, beans, alfalfa, onions and potatoes. All methods of irrigation that are common to the area are used. Borders are suitable for small grain, alfalfa, and pasture. Furrow irrigation is used for row crops. Crops respond to application of nitrogen and phosphorus. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wildlife is an important secondary use of this soil. Ring-necked pheasant, mourning dove, and many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. Ft Lupton Pit DING 112 Permit Page 40 of RI Where this soil is on flood plains and is susceptible to flooding it has poor potential for urban and recreational development On the higher terraces the potential is fair. Dwelling and road designs need to be modified to increase the capacity of the soil to support a load and to protect it against frost action. Capability subclass 11w irrigated. 21—Dacono Clay Loam, 0-1 %slopes This is a deep, well drained soil on terraces at elevations of 4550 to 4970 feet. It formed in - mixed alluvium. Included in mapping are small, long and narrow areas of sand and gravel deposits and some small, leveled areas. Typically, the surface layer of this Dacono soil is grayish brown clay loam about 12 inches thick. The subsoil is grayish brown clay loam about 15 inches thick. The substratum is very gravelly sand. Permeability is moderately slow. Available water capacity is moderate. The effective rooting depth is 20 to 40 inches. Surface runoff is slow, and the erosion hazard is low. This soil is used almost entirely for irrigated crops. It is suited to all crops commonly grown in the area, including corn, sugar beets, beans, alfalfa, small grain,potatoes, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. Generally, such characteristics as high clay content or a rapidly permeable substratum slightly restrict some crops. All methods of irrigation are suitable, but furrow irrigation is the most common. Proper irrigation water management is essential. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar,ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Openland wildlife, such as pheasant, mourning dove, and cottontail are best suited to this soil. Wildlife habitat development,including tree and shrub plantings and grass plantings to serve as nesting areas, should be successful without irrigation during most years. Under irrigation, good wildlife habitat can be established, benefiting many kinds of openland wildlife. This soil has only fair potential for urban and recreational development. Above the sand and gravel substratum the soil has moderate slow permeability. These features create problems in dwelling and road construction. Excessive permeability in the substratum can cause contamination of the ground water supply from septic tank leach fields. Sewage lagoons need to be lined. Capability subclass Its irrigated. 31 -Kim Loam, 0-1 % slopes This is a deep, well drained soil on smooth plains and alluvial fans at elevations of 4900 to 5250 feet. It formed in mixed eolian deposits and parent sediment from a wide variety of R. Lupton Pa DUG 112 Permit Page 41 of 81 bedrock.Included in mapping re small areas of soils that have loamy sand underlying material Typically;the surface layer is brown and pale brown about 12 inches "'--" thick. The upper 30 inches of the underlying material is pale brown loam. The lower part to a depth of 60 inches is pale brown fine sandy loam. Permeability is moderate.Available water capacity is high. The effective rooting depth is 60 inches of more. Surface runoff is slow, and the erosion hazard is low. This soil is used almost entirely for irrigated crops. It is suited to all corps commonly grown in the area,including corn,sugar beets, beans,alfalfa, small grain,potatoes, and onions.An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. Very few conservation practices are needed to maintain top yields. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competin vegetation shoulc be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar,ponderosa pine, Siberian elm, Russian-olive, and hackberry_ The shrubs best suited are skunkbush sumac, Siberian peashrub, lilac, and American plum. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has good potential for urban and recreational development. Increased population growth in the survey area has resulted in increased homesite construction. The chief limiting feature for urban development and road construction is the limited capacity of the soil to support a load. Septic tank absorption fields function properly, but community sewage systems should be provided if the population density increases. Because of the permeability of the substratum, sewage lagoons must be sealed. lawns, shrubs, and trees grow well. Capability class] irrigated. 32-Kim loam, 1-3%slopes This is a deep, well drained soil on smooth plains and alluvial fans at elevations of 4900 to 5250 feet It formed in mixed eolian deposits and parent sediment from a wide variety of bedrock. Included in mapping re small areas of soils that have loamy sand underlying material. F: Lupton Pit DMG 112 Permit Page 42 of 81 Typically,the surface layer is brown and pale brown about 12 inches thick. The upper 28 inches of the underlying material is pale brown loam. The lower part to a depth of 60 inches is pale brown fine sandy loam. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches of more. Surface runoff is medium,and the erosion hazard is low. In irrigated areas this soil is suited to all crops commonly grown in the area, including corn, sugar beets, beans, alfalfa, small grain,potatoes, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn,corn for silage, sugar beets, small grain, or beans. land leveling, ditch lining, and installing pipelines may be needed for proper water applications. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. In nonirrigated areas this soil is suited to winter wheat, barley, and sorghum. Most of the acreage is planted to winter what and is summer followed in alternate years to allow moisture accumulation. Generally precipitation is too low for beneficial use of fertilizer. Stubble mulch farming, striperopping, and minimum tillage are needed to control soil blowing and water erosion. Terracing also may be needed to control water erosion. The potential native vegetation is dominated by blue grama. Several mid grasses, such as western wheatgrass and needleandthread, are also present. Potential production ranges from 1600 pounds per acre in favorable years to 1 000 pounds in unfavorable years. As range condition deteriorates, the mid grasses decrease; blue grama, buffalograss, snakeweed, yucca, and fringed sage increase; and forage production drops. Undesirable weeds and annuals invade the site as range condition becomes poorer. Management of vegetation on this soil should be based on taking half and leaving half of the total annual production. Seeding is desirable if the range is in poor condition. Sideoats grama, little bluestem, western wheatgrass, blue grama,pubescent wheatgrass, and crested wheatgrass are suitable for seeding. The grass selected should meet the seasonal requirements of livestock. It can be seeded into a clean, firm sorghum stubble, or it can be drilled into a firm prepared seedbed_ Seeding early in spring has proven most successful. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, Siberian peashrub, lilac, and American plum. F, Lupton Pit DUG 112 Fermi Page 43 of 81 Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants,undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has good potential for urban and recreational development. Increased population growth in the survey area has resulted in increased homesite construction. The chief limiting feature for urban development and road construction is the limited capacity of the soil to support a load. Septic tank absorption fields function properly, but community sewage systems should be provided if the population density increases. Because of the permeability of the substratum, sewage lagoons must be sealed. Lawns, shrubs, and trees grow well. Capability subclass lie irrigated, IVe nonirrigated; Loamy Plains range site. 34-Kim Loam, 5-9%slopes This is a deep well drained soil on plains and alluvial fans at elevations of 4900 to 5250 feet. It formed in mixed eolian deposits and parent sediment from a wide variety of bedrock. Included in mapping are small areas of soils that have loamy sand underlying material. Typically the surface layer is brown and pale brown loam about 10 inches thick. The upper 25 inches of the underlying material is pale brown loam. The lower part to a depth of 60 inches is pale brown fine sandy loam. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is rapid, and the erosion hazard • is moderate. This soil is suited to limited cropping. Intensive cropping is hazardous because of erosion. The cropping system should be limited to such close grown crops as alfalfa, wheat, and barley. This soil also is suited to irrigated pasture. A suitable cropping system is 3 to 4 years of alfalfa followed by 2 years of corn and small grain and alfalfa seeded with a nurse crop. Close grown crops can be irrigated from closely spaced contour ditches or sprinklers. Contour furrows or sprinklers should be used for new crops. Applications of nitrogen and phosphorus help in maintaining good production. The potential native vegetation is dominated by blue grama. Sideoats grama, little bluestem, western wheatgrass, and sedge are also prominent. Potential production ranges from 1800 pounds per acre in favorable years to 1500 pounds in unfavorable years. As range condition deteriorates, the sideoats grama and little bluestem decrease; forage production drops; and blue grama, buffalograss, and several perennial forbs and shrubs increase. Undesirable weeds and annuals invade the site as range condition becomes poorer. Fr Lupton Pit DUG 112 Penni, Page 44 of 81 Management of vegetation should be based on taking half an leaving half of the total annual production. Seeding is desirable if the range is in poor condition. Sideoats grama, little bluestem, western wheatgrass, and pubescent wheatgrass are suitable for seeding. The grass selected should meet the seasonal needs of livestock. It can be seeded into a clean, firm sorghum stubble, or it can be drilled into a firm prepared seedbed. Plowing and drilling on the contour minimize runoff and soil losses. Seeding early in spring has proven most successful Windbreaks and environmental plantings are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper,eastern redcedar, ponderosa pine, Siberian elm, Russian-olive, and hackberry.The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. Rangeland wildlife, for example, the pronghorn antelope, can be attracted by developing livestock watering facilities, managing livestock grazing, and reseeding where needed. This soil has good potential for urban and recreational development. Increased population growth in the survey area has resulted in increased homesite construction. The chief limiting soil feature for urban development and road construction is th elimited capacity of this soil to support a load. Septic tank absorption fields function properly, but community sewage systems should be provide if the population density increases. Because of the permeability of the substratum, sewage lagoons must be sealed. Lawns, shrubs, and trees grow well. Capability subclass IVe irrigated, Vie nonirrigated; Loamy Plains range site. 39-Nunn Loam, 0-1 %slopes This is a deep, well drained soil on terraces at elevations of 4550 to 5000 feet. It formed in mixed alluvium. Included in mapping are small, long and narrow areas of sand and gravel deposits and small areas of soil that are subject to occasional flooding. Some small leveled areas are also included. Typically the surface layer of this Nunn soil is grayish brown loam about 12 inches thick. The subsoil is light brownish gray clay loam about 12 inches thick. The upper part of the substratum is light brownish gray clay loam. The lower part to a depth of 60 inches is brown sandy loam. Permeability is moderately slow_ Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. Ft Lupton Pit DMG 112 Permit Page 45 of 81 This soil is used almost entirely for irrigated crops. It is suited to all crops commonly grown in the area, including corn, sugar beets, beans, alfalfa,small grain,potatoes, and onions.An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn,corn for silage, sugar beets, small grain, or beans. Few conservation practices are needed to maintain top yields. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern red cedar,ponderosa pine, Siberian elm,Russian-olive, and hackberry. The shrubs best suited are skunkbush, lilac, Siberian peashrub, and American plum. Wildlife is an important secondary used of this soil.The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing-areas for nesting and escape cover. For pheasants undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has fair to poor potential for urban development. It has moderate to high shrink swell, low strength, and moderately slow permeability. These features create problems in dwelling and road construction. Those areas that have loam or sandy loam in the lower part of the substratum are suitable for septic tank absorption fields and foundations. Some areas are adjacent to streams and are subject to occasional flooding_ This soil has fair potential for such recreational development as camp and picnic area and playgrounds. Capability class I irrigated. 41—Nunn Clay Loam, 0-1%slopes This is a deep, well-drained soil on terraces and smooth plains at elevations of 4550 to 5150 feet. It formed in mixed alluvium and eolian deposits. Included in mapping are small, long and narrow areas of sand and gravel deposits and small areas of soils that are subject to occasional flooding. Some small, leveled areas are also included. Typically, the surface layer of this Nunn soil is grayish brown clay loam about 9 inches thick. The subsoil is light brownish gray clay loam about 14 inches thick. The upper pad of the substratum is clay loam. The lower part to a depth of 60 inches is sandy loam. Permeability is moderately slow. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. F,.Lupton Pit UMG 1!1 Permit Page 46 of 81 This soil is used almost entirely for irrigated crops. It is suited to all corps commonly grown in the area,including corn sugar beets, beans,alfalfa, small grain,potatoes, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. Few conservation practices are needed to maintain top yields. Windbreaks and environmental plantings of trees and shrubs commonly grown in the area are generally well suited to this soil. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar,ponderosa pine, Siberian elm,Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, Siberian peashrub, and American plum. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has fair to poor potential for urban development. It has moderate to high shrink- swell, low strength, and moderately slow permeability. These features create problems in dwelling and road construction. Those areas that have loam or sandy loam in the lower part of the substratum are suitable for septic tank absorption fields and foundations. Some areas of this soil are adjacent to streams and are subject to occasional flooding. The potential is fair for such recreational development as camp picnic areas and playgrounds. Capability class I irrigated. 63- Terry Fine Sandy Loam, 3-9%slopes This is a moderately deep, well drained soil on plains at elevations of 4500 to 5000 feet. It formed in residuum from sandstone. Included in mapping are small areas of soils that have sandstone deeper than 40 inches. Also included are small areas of soils that have a sandy clay loam and clay loam subsoil. Typically the surface layer of this Terry soil is pale brown fine sandy loam about 6 inches thick. The subsoil is pale brown fine sandy loam about 18 inches thick. The substratum is fine sandy loam. Sandstone is at a depth of about 32 inches. Permeability is moderately rapid. Available water capacity is moderate. The effective rooting depth is 20 to 40 inches. Surface runoff is medium to rapid, and the erosion hazard is moderate. This soil is suited to limited cropping. Intensive cropping is hazardous because of erosion. The cropping system should be limited to such close grown crops as alfalfa, wheat, and barley. The soil is also suited to irrigated pasture. A suitable cropping system is 3 to 4 years of alfalfa followed by 2 years of corn and small grain and alfalfa seeded with a nurse crop. Ft.Lnpton Pa, DMG 112 Permit Page 47 of 81 Closely spaced contour ditches or sprinklers can be used in irrigating close grown crops. Contour furrows or sprinklers should be used for new crops. Applications of nitrogen and phosphorus help in maintaining good production. The potential native vegetation on this range site is dominated by sand bluestem, sand reedgrass, and blue grama.Needleandthread, swithgrass, sideoats grama, and western wheatgrass are also prominent. Potential production ranges from 2200 pounds per acre in favorable years to 1800 pounds in unfavorable years. As range condition deteriorates, the sand bluestem, sand reedgrass, and switchgrass decrease and blue grama, sand dropseed, and sand sage increase. Annual weeds and greases invade the site as range condition becomes poorer. Management of vegetation on this soil should be based on taking half and leaving half of the total annual production. Seeding is desirable if the range is in poor condition. Sand bluestem, sand reedgrass, switchgrass, sideoats grama,blue grama,pubescent wheatgrass, and crested wheatgrass are suitable for seeding. The grass selected should meet the seasonal - requirements of livestock. It can be seeded into a clean, firm sorghum stubble, or it can be drilled into a firm prepared seedbed. Seeding early in spring has proven most successful Windbreaks and environmental plantings are generally not suited to this soil. Onsite investigation is needed to determine if plantings are feasible. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially, in areas of intensive agriculture. Rangeland wildlife, for example, the pronghorn antelope,can be attracted by developing livestock watering facilities, managing livestock grazing, and reseeding where needed. The underlying sandstone is the most limiting feature of this soil. Neither septic tank absorption fields nor sewage lagoons function properly. Site preparation for dwellings is costly. Environmental and beautification plantings of trees and shrubs can be difficult to establish. Potential is good, however, for such recreational development as camp and picnic areas. Capability subclass IVe irrigated, Vle nonirrigated; Sandy Plains range site. 75- Vona Sandy Loam, 0-I % slopes This is a deep, well drained soil on high terraces at elevations of 4650 to 4950 feet. It formed in alluvial deposits. Included in mapping are some leveled areas and small areas of soils that have a loamy substratum. Ft. Lupton Pa DWG/11 Permit Page 48 of 81 Typically the surface layer of this Vona soil is grayish brown sandy loam about 10 inches thick.The subsoil is brown fine sandy loam about 20 inches thick. The substratum to a depth of 60 inches is sandy loam. - Permeability is moderately rapid. Available water capacity is moderate. The effective rooting depth is 60 inches or more. Surface runoff is slow,and the erosion hazard is low. This soil is used almost entirely for irrigated crops. It is suited to all corps commonly grown in the area,including corn,sugar beets, beans, alfalfa, small grain,potatoes, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. The rapidly permeable substratum slightly restricts some crops. All methods of irrigation are suitable, but furrow irrigations is the most common. Proper irrigation management is essential. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings are generally suited to this soil. Soil blowing, the principal hazard in establishing trees and shrubs, can be controlled by cultivating only in the tree row and by leaving a strip of vegetation between the row. Supplemental irrigation may be necessary at the time of planting and during the dry periods. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar,ponderosa pine Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac, and Siberian peashrub. Wildlife is an important secondary use of this soil. Ring-necked pheasant,mourning dove, and many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. This soil has god potential for urban and recreational development lawns, shrubs, and trees grow well. The only limiting feature is the rapid permeability in the substratum, which causes a hazard of ground water contamination from sewage lagoons. Capability subclass Its irrigated. 76- Vona Sandy Loam, 1-3%slopes This is a deep, well drained soil on plains and high terraces at elevations of 4600 to 5200 feet. It formed in eolian and alluvial deposits. Included in mapping are some leveled areas. Also included are small areas of soils that have a loamy substratum and areas of soils that are noncalcareous to a depth of 60 inches. Typically the surface layer of this Vona soils is grayish brown sandy loam about 10 inches thick. The subsoil is brown fine sandy loam about 18 inches thick. The substratum to a depth of 60 inches is sandy loam. Permeability is moderately rapid. Available water capacity is moderate. The effective rooting depth is 60 inches or more. Surface runoff is slow, and the erosion hazard is low. Ft Lupton Pit Dd4G 112 Penn i, Page 49 oj8l In irrigated areas this soil is suited to all corps commonly grown in the area,including corn, sugar beets,beans; alfalfa,small grain, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage,sugar beets, small grain, or beans. Land leveling, ditch lining, and installing pipelines are needed for proper water applications. All methods of irrigation are suitable, but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. Windbreaks and environmental plantings are generally suited to this soil. Soil blowing,the principal hazard in establishing trees and shrubs, can be controlled by cultivation only in the tree row and by leaving a strip of vegetation between the rows. Supplemental irrigation may be necessary at the time of planting and during dry periods. Trees that are best suited and have good survival are Rocky Mountain juniper, eastern redcedar,ponderosa, pine, Siberian elm, Russian-olive, and hackberry. The shrubs best suited are skunkbush sumac, lilac,and Siberian peashrub. Wildlife is an important secondary use of this soil. The cropland areas provide favorable habitat for ring-necked pheasant and mourning dove. Many nongame species can be attracted by establishing areas for nesting and escape cover. For pheasants, undisturbed nesting cover is essential and should be included in plans for habitat development, especially in areas of intensive agriculture. Rangeland wildlife, for example, the pronghorn antelope, can be attracted by developing livestock watering facilities,managing livestock grazing, and reseeding where needed. This soil has good potential for urban and recreational development. lawns, shrubs, and trees grow well. The only limiting feature is the rapid permeability in the substratum, which causes a hazard of ground water contamination from sewage lagoons. Capability subclass lie irrigated; IVe nonirrigated; Sandy Plains range site. 82- Wiley-Colby complex, 1-3%slopes This nearly level map unit is on smooth plains in the western part of the survey area at elevations of 4850 to 5000 feet. The Wiley soil makes up about 30 percent. About 10 percent is Heidi silty clay and Weld loam. The Wiley soil is deep and well drained. It formed in calcareous eolian deposits. Typically the surface layer is pale brown silt loam about 11 inches thick. The subsoil is pale brown silty clay loam about 23 inches thick. The substratum to a depth of 60 inches is very pale brown silty clay loam. Permeability is moderately slow. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is medium, and the erosion hazard is moderate. Ft Lupton Pit DMG 112 Permit Page 50 of 81 The Colby soil also is deep and well drained and formed in calcareous eolian deposits. Typically the surface layer is pale brown loam about 7 inches thick.The underlying material is very pale brown silt loam to a depth of 60 inches. Permeability is moderate. Available water capacity is high. The effective rooting depth is 60 inches or more. Surface runoff is medium, and the erosion hazard is moderate. This map unit is used for irrigated and nonirrigated cropland and for rangeland,wildlife habitat, and urban development. In irrigated areas these soils are suited to all crops commonly grown in the area, including corn, sugar beets, beans, alfalfa, small grain, and onions. An example of a suitable cropping system is 3 to 4 years of alfalfa followed by corn, corn for silage, sugar beets, small grain, or beans. Land leveling, ditch lining and installing pipelines may be needed for proper water applications. All methods of irrigation are suitable but furrow irrigation is the most common. Barnyard manure and commercial fertilizer are needed for top yields. In nonirrigated areas these soils are suited to winter wheat, barley, and sorghum. Most of the acreage is planted to winter wheat. The predicted average yield is 28 bushels per acre. The soil is summer fallowed in alternated years to allow moisture accumulation. Generally precipitation is too low for beneficial use of fertilizer. Stubble mulch farming, striperopping, and minimum tillage are needed to control soil blowing and water erosion. Terracing also may be needed to control water erosion. The potential native vegetation is dominated by blue grama. Several mid grasses such as western wheatgrass and needleandthread are also present. Potential production ranges from 1600 pounds per acre in favorable years to 1000 pounds in unfavorable years. As range condition deteriorates, the mid grasses decrease; blue grama, buffalograss, snakeweed, yucca, and fringed sage increase; and forage production drops. Undesirable weeds and annuals invade the site as range condition becomes poorer. Management of vegetation on this soil should be based on taking half and leaving half of the total annual production. Seeding is desirable if the range is in poor condition. Sideoats grama, little bluestem, western wheatgrass, blue grama, pubescent wheatgrass, and crested wheatgrass are suitable for seeding. The grass selected should meet the seasonal requirements of livestock. It can be seeded into a clean, firm sorghum stubble or it can be drilled into a firm prepared seedbed. Seeding early in spring has proven most successful. Windbreaks and environmental plantings are generally well suited to these soils. Cultivation to control competing vegetation should be continued for as many years as possible following planting. Trees that are best suited and have good survival are Rocky Ft Lupton Pit DMG 112 Permit Page 51 of81 Mountain juniper,eastern redcedar,ponderosa pine, Siberian elm,Russian-olive,and hackberry. The shrubs best suited are skunkbush sumac, lilac,Siberian peashrub, and American plum. Openland wildlife, such as pheasant,mourning dove, and cottontail are best suited to these soils. Wildlife habitat development,including tree and shrub plantings and grass plantings to serve as nesting areas, should be successful without irrigation during most years. Under irrigation, good wildlife habitat can be established,benefiting many kinds of openland wildlife. The Wiley soil has only fair potential for urban and recreational development. Slow permeability, moderate shrink-swell potential, and limited bearing capacity cause problems in dwelling and road construction. The Colby soil has good potential for urban and recreation development. Road design can be modified to compensate for the limited capacity of this soil to support a load. Capability subclass Ile irrigated, IVe nonirrigated; Loamy Plains range site. Fr.Lupton Pit DMG 112 Permit Page 52 of 81 Soils Map Fr.Lupton Pit DMG 112 Permit Page 53 of81 Io ------4) , 3 9, �d3 47 t y3 v, 1 1 132 t. '1' ,' , J U .� f ;••\ { 19 ..�x 10 n: 1�1 / --�, i 12 ! \ 33 11 4 7,4_,_, ' III 3 i ) 10 I. ' i / 3 11,1 l t): ``3i in 1 I/-) r� NI Tr --- lJ et 3 ( � I 1 10 1 a , �� 9 � � to ( iQ 31 - 10 \� / i / \ 41° �a13 3 18, 3( . %/ y a' ' 1 (1'7 1 l(-_� IG '` i . / 41 . 141 g r ' ) ,, I• f. Ln \� ( PPwarsrib 4r �,9`..,‘. i ,\ - g 3 �r (\ xl\ j y� 1 4: -'1 -19\t; \� M� } ` 3u t ' \� 4 1 / J j� :� 10 11 I;, �� : .---ml r ,1 ' GE i IS \ / ow. AUERIG b. AMMO: SZRCE$ ICU 4L lone tow.Gin*ern (.p�61-1® �, YeaIFCe: Wallenberg or, FORT LUPTON PERMIT r� , EXHIBIT I SOIL MAP .! 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