HomeMy WebLinkAbout20202415.tiff MEMORANDUM
TO: Angela Snyder, Planning Services
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FROM: Melissa J King, PE, Public Works
DATE: May 6, 2020
I- O U_ r - SUBJECT: USR20-0011 Peterson
The Weld County Department of Public Works has reviewed this proposal. Staff comments made during
this phase of the application process may not be all-inclusive, as other issues may arise during the
remaining application process.
COMMENTS
GENERAL PROJECT INFORMATION/LOCATION
Project description: A Site Specific Development Plan and Use by Special Review for a Small Scale Solar
Facility in A(Agricultural) Zone District
This project is south of and adjacent to County Road 36 and is east of and adjacent to County Road 31.
Parcel number 121110200018.
Current access is from CR 36.
ACCESS
Weld County Public Works has reviewed the application materials related to access.
The parcel has an existing permitted oil and gas access onto County Road 36 approximately 1,170 feet
east of the intersection of County Road 36 and County Road 31 (AP19-00169).
The parcel has an existing unpermitted access onto County Road 36 approximately 150 feet east of the
intersection of County Road 36 and County Road 31. This access does not meet the minimum spacing
criteria as included in the Table 1 below. The applicant shall obtain an access permit for a location that
meets the minimum spacing criteria. The existing access shall be closed and reclaimed.
The applicant has proposed an access onto County Road 31. This access shall be sited to meet the
minimum spacing criteria as specified in Table 1 below.
ACCESS
Sec. 8-14-30. Table 1 Minimum Access Spacing Criteria (Feet)
Access Element Arterial Collector Local
Distance between intersections
Signalized 2,640 N/A N/A
Unsignalized 1,320 1,320 330
Distance between accesses and intersections 660 660 330
Distance between access points 660 330 150
Distance between access points in subdivisions 660 330 75
Per Sec. 8-14-30, an Access Permit is required for access to Weld County maintained roadways. We
strongly encourage you to discuss your access location with Public Works prior to laying out your site plan.
All"preliminarily approved" accesses are subject to change during the access permitting process. Per Sec.
24-8-40, when feasible,there shall be no net increase in the number of accesses to a public road. Minimum
access spacing widths are shown in Weld County Code Sec. 8-14-30. Please refer to Chapter 8 of the Weld
County Code for more information regarding access.
ROADS AND RIGHTS-OF-WAY
County Road 36 is a gravel road and is designated on the Weld County Functional Classification Map (Code
Ordinance 2017-01) as a local road, which requires 60 feet of right-of-way. The applicant shall delineate
and label on the site map or plat the future and existing right-of-way (along with the documents creating the
existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be
dedicated or reserved per Weld County Code. Pursuant to the definition of setback in the Weld County
Code, Sec. 23-1- 90, the required setback is measured from the future right-of-way line. Be aware that
physical roadways may not be centered in the right-of-way. This road is maintained by Weld County.
County Road 31 is a gravel road and is designated on the Weld County Functional Classification Map (Code
Ordinance 2017-01) as a local road, which requires 60 feet of right-of-way. The applicant shall delineate
and label on the site map or plat the future and existing right-of-way (along with the documents creating the
existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be
dedicated or reserved per Weld County Code. Pursuant to the definition of setback in the Weld County
Code, Sec. 23-1-90, the required setback is measured from the future right-of-way line. Be aware that
physical roadways may not be centered in the right-of-way. This road is maintained by Weld County.
Per, Sec. 8-13-30.B, a Weld County Right-of-Way Use Permit is required for any project that will be
occupying, constructing or excavating facilities within, and/or encroaching upon, any County rights-of-way
or easement. Right-of-Way Use Permit instructions and application can be found at
https://www.weldgov.comidepartments/publicworks/permits/.
Weld County will not replace overlapping easements located within existing right-of-way or pay to relocate
existing utilities within the County right-of-way.
TRAFFIC
Latest ADT (2013) on CR 31 counted 156 vpd with 31%trucks. The 85th percentile speed is 53 mph.
Latest ADT (2013) on CR 36 counted 67vpd with 26%trucks. The 85th percentile speed is 51 mph.
The traffic information submitted with the application materials indicates that during construction there will
be approximately 38 vehicles per day (30 heavy trucks and 8 passenger vehicles). 100 % of the traffic will
be going to the north on County Road 31 and west via County Road 36 to access Highway 85.
The traffic information submitted with the application materials indicates that during operation there will be
approximately 1 utility vehicle per month. This vehicle will have the same travel route as the construction
traffic.
TRACKING CONTROL
Tracking control is not required for this project as there will be no access or travel onto paved County roads.
ROAD MAINTENANCE AGREEMENT
Public Works is requesting a Road Maintenance Agreement including, but not limited to, dust control and
damage repair to specified haul routes during construction.
Improvement/Road Maintenance Agreement: An example agreement is available at:
https://www.weldcov.com/UserFiles/Servers/Server 6/File/Departments/Public%20Works/DevelopmentR
eview!U SR-SPR-Permits%201 m provements%20Aq reement%20Template.pdf.
DRAINAGE REQUIREMENTS
The applicant has submitted a preliminary drainage report. A final drainage report that addresses the Weld
County Solar Facilities Guidance Document shall be submitted. This drainage report must be stamped and
signed by a professional engineer licensed in the State of Colorado.
Historic Flows:
The applicants will be required to maintain the historic drainage flows and run-off amounts that exist from
the property.
GRADING PERMIT
A Weld County Grading Permit will be required if disturbing more than 1 acre. Grading Permit applications
are accepted after the planning process is complete (plan recorded). An Early Release Request Form may
be entertained only after the applicant, Public Works and Planning Department have reviewed the referral
and surrounding property owner comments. The Early Release Request may or may not be granted
depending on referral comments and surrounding property owner concerns. Contact an Engineering
representative from the Public Works for more information.
A Construction Stormwater Permit is also required with the State for disturbing more than 1 acre. Contact:
Colorado Department of Public Health and Environment, Water Quality Control Division, 303-692-3575.
CONDITIONS OF APPROVAL
A. The applicant shall address the concerns of the Public Works Referral relating to the existing
unpermitted access onto County Road 36 and the proposed access location onto County Road
31. (Department of Public Works)
B. A Road Maintenance Agreement, during construction is required at this location. Road
maintenance includes, but is not limited to, dust control and damage repair to specified haul
routes during construction. (Department of Public Works)
C. A Final Drainage Report that addresses the Weld County Solar Facilities Guidance Document and
that is stamped and signed by a professional engineer registered in the State of Colorado is
required. (Department of Public Works)
D. The plan shall be amended to delineate the following:
1. County Road 31 is a gravel road and is designated on the Weld County Functional Classification
Map as a local road which requires 60 feet of right-of-way at full buildout. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the
documents creating the existing right-of-way) and the physical location of the road. All setbacks
shall be measured from the edge of right-of-way. This road is maintained by Weld County.
(Department of Public Works)
2. County Road 36 is a gravel road and is designated on the Weld County Functional Classification
Map as a local road which requires 60 feet of right-of-way at full buildout. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the
documents creating the existing right-of-way) and the physical location of the road. All setbacks
shall be measured from the edge of right-of-way. This road is maintained by Weld County.
(Department of Public Works)
3. Show and label the approved access locations, approved access width and the appropriate turning
radii on the site plan. The applicant must obtain an access permit in the approved locations prior
to construction. (Department of Public Works)
4. Show and label the entrance gate if applicable.An access approach that is gated shall be designed
so that the longest vehicle (including trailers) using the access can completely clear the traveled
way when the gate is closed. In no event, shall the distance from the gate to the edge of the traveled
surface be less than 35 feet. (Department of Public Works)
5. Show and label the drainage flow arrows. (Department of Public Works)
6. Show and label the parking and traffic circulation flow arrows showing how the traffic moves around
the property. (Department of Public Works)
Prior to Construction:
A. The approved access onto County Road 31 shall be constructed prior to on-site construction.
(Department of Public Works)
B. If more than one (1) acre is to be disturbed, a Weld County Grading Permit will be required.
(Department of Public Works)
DEVELOPMENT STANDARDS (NOTES ON THE SITE PLAN)
1. The property owner or operator shall be responsible for controlling noxious weeds on the site, pursuant
to Chapter 15, Article I and II, of the Weld County Code. (Department of Public Works)
2. The access to the site shall be maintained to mitigate any impacts to the public road, including damages
and/or off-site tracking. (Department of Public Works)
3. There shall be no parking or staging of vehicles on public roads. On-site parking shall be utilized.
(Department of Public Works)
4. Any work that may occupy and or encroach upon any County rights-of-way or easement shall acquire
an approved Right-of-Way Use Permit prior to commencement. (Department of Public Works)
5. The Property Owner shall comply with all requirements provided in the executed Road Maintenance
Agreement. (Department of Public Works)
6. The historical flow patterns and runoff amounts on the site will be maintained. (Department of Public
Works)
7. Weld County is not responsible for the maintenance of onsite drainage related features. (Department
of Public Works)
PUBLIC WORKS DEPARTMENT
18 � 1111 H Street, P.O. Box 75$
Greeley, Colorado $0632
Website: www.weldgov.com
G O U N T Y Phone: (970)304-6496, ext. 3750
Fax: (970)304-6497
•
Weld County Public Works has developed stormwater drainage design standards for use with Solar
Farm facilities projects. Please refer to the proposed requirements listed below.
Site Considerations
1. If the current site is vegetated ground or in a stabilized condition, minimize earth disturbance
during construction. Maintain ground cover in good condition, during and after construction.
2. If proposed site slopes exceed 5%, energy dissipation or other erosion protection measures
may be required. On steep sites, provide a vegetative buffer 1/6 width of the flow length of
the panels at the downstream edge of the solar field for sediment/pollutant removal.
3. If on-site vegetation is not properly established and maintained to prevent erosion, additional
erosion control measures may be required by the County.
4.
Detention/Water Quality Pond Design Requirements
1. Type A/B Soils
a. If the application is not proposing additional imperviousness other than the solar panels,
the site meets the exception for not increasing the imperviousness of the site.
b. Concrete pads, gravel roads, graveled storage areas/laydown yards, structures, and any
large concrete bases/foundations will count towards impervious areas in the drainage
design.
c. Impervious areas larger than allowed in the Weld County Code Section S-11-40
(exceptions) may trigger the requirements of a drainage report and detention pond
design.
2. Type C/D Soils
a. The solar panels will be counted towards the overall impervious area for the site. The
solar panels fields (panel area and rows between panels)should be calculated using a
25% imperviousness value.
b. Concrete pads, gravel roads, graveled storage areas/laydown yards, structures,
buildings and any other site features should be calculated using the Urban Drainage
recommended imperviousness percentages.
3. MS4
a. Sites within the MS4 boundary may trigger water quality and other MS4 requirements.
Report Information
1. If topsoil is being disturbed, indicate how is the impact being addressed:
a. Reseeding
b. Mulching
c. Use of Hydraulic Growth Medium — i.e. Biotic earth
d. Seed mix
e. Irrigation during initial phase of establishment of vegetation
f. Estimated time for establishment of vegetation
2. Site Design
a. Provide information on the horizontal spacing of the panels and rows between panels.
Verify the spacing is adequate to promote vegetative growth beneath the panels.
b. Verify the vertical height of the panels is adequate to promote vegetative growth beneath
the panels.
c. Provide plan of site layout with information on row spacing and ground cover materials
between rows. Show the layout of access roads, concrete pads, solar panel
foundations, buildings or other site features on map.
Drainage report checklist: can be found under storm drainage guidance at
https://www.weldgov.com/departments/public works/development review
Please use this check list to help meet County Requirements
1Kfi1 rir
I WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
r 1555 North 17th Avenue, Greeley, CO 80631 www.weldhealth.org
Memorandum
To: Angela Snyder
From: Lauren Light, Environmental Health Services
Date: May 22, 2020
Re: USR20-0011 Pivot Solar 04, LLC
Environmental Health Services has reviewed this Site-Specific Development
Plan and Use by Special Review Permit for a Small-Scale Solar Facility in the A
(Agricultural) Zone District.
As no employees will be located at the site, permanent water and sewer is not
required. Screened portable toilets, hand washing units and bottled water can
be utilized during construction.
We recommend the following requirements are incorporated into the permit as
development standards:
1 . All liquid and solid wastes (as defined in the Solid Wastes Disposal Sites
and Facilities Act, 30-20-100.5, C.R.S.) shall be stored and removed for
final disposal in a manner that protects against surface and groundwater
contamination.
2. No permanent disposal of wastes shall be permitted at this site. This is
not meant to include those wastes specifically excluded from the
definition of a solid waste in the Solid Wastes Disposal Sites and
Facilities Act, 30-20-100.5, C.R.S.
3. Waste materials shall be handled, stored, and disposed in a manner that
controls fugitive dust, fugitive particulate emissions, blowing debris, and
other potential nuisance conditions. The facility shall operate in
accordance with Chapter 14, Article 1 of the Weld County Code.
4. Fugitive dust should attempt to be confined on the property. Uses on the
property should comply with the Colorado Air Quality Commission's air
quality regulations.
Health Administration Public Health& Environmental Health Communication, Emergency Preparedness
Vital Records Clinical Services Services Education&Planning g Response
cic:9/0 304 6410 Icic:9/0 304 6420 Tele:970-304-6415 Tele:970-304-6470 Tele:970-304-6470
Fax: 9/0-301-641'2 Fax: 910-304-6416 Fax: 970-304-6411 Fax. 970-304-6452 Fax: 970-304-6452 Public Health
5. During construction, adequate toilet facilities and handwashing units
shall be provided. Portable toilets shall be serviced by a cleaner
licensed in Weld County, contain hand sanitizers, be screened from
public view and removed when construction is completed.
6. The operation shall comply with all applicable rules and regulations of
State and Federal agencies and the Weld County Code.
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