HomeMy WebLinkAbout20194221.tiff MEMORANDUM
TO: Angela Snyder, Planning Services
1861
FROM: Mike McRoberts, P.E., Public Works
DATE: August 19, 2019
O SUBJECT: USR19-0050 Oak Leaf Solar Facility
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 Permit for a Small Scale
Solar Facility (2MW) in the A(Agricultural)Zone District
This project is north of and adjacent to CR 36 and is west of and adjacent to CR 25.
Parcel number 120901000040.
Access is from CR 36.
ACCESS
Weld County Public Works has reviewed the application materials related to access and determined that
access for the site will be on County Road 36 via an existing permitted access (AP18-00546) and existing
gravel road. The existing County Road 36 access is located approximately 2,720 feet west of County Road
25. The applicant shall obtain and record a minimum 30-foot wide access and utility easement necessary
to provide legal access to the project site. The easement shall be signed by all owners of property being
crossed by the easement.
Per Chapter 12, Article 5, Section 12-5-30, an Access Permit is required for access to Weld County
maintained roadways. The applicant shall work with Public Works to determine if a new access permit is
required with this USR. Please refer to Chapter 12 of the Weld County Code for more information regarding
access.
ROADS AND RIGHTS-OF-WAY
County Road 25 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. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section
23-3-50, 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 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. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section
23-3-50, 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 Chapter 12, Article 4, Section 12-4-30.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.com/departments/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 on CR 36 counted 168 vpd with 29%trucks. The 85t" percentile speed is 48 mph.
The traffic information submitted with the application materials indicated that post-construction traffic is
expected to be approximately 5-10 annual roundtrips.
TRACKING CONTROL
Tracking control is required to prevent tracking from the site onto public roadways. For access to gravel
roads, tracking control devices must be either double cattle guards with 100 linear feet of road base, or
road base on all driving surfaces. Temporary Tracking Control shall be used during construction unless
permanent tracking control is installed ahead of construction activities. Recycled concrete is not allowed in
County right-of-way.A variance request for alternatives to the tracking control requirement can be submitted
to Public Works for review and consideration.
This site requires double cattle guards and 100 ft. of road base or road base on all driving surfaces.
ROAD MAINTENANCE AGREEMENT
Public Works is requiring a Road Maintenance Agreement during construction only. The agreement shall
include, but is not limited to, dust control and damage repair to specified haul routes.
Improvements/Road Maintenance Agreement: An example agreement is available at:
https://www.weldgov.com/UserFiles/Servers/Server_6/File/Departments/Public%20Works/DevelopmentR
eview/USR-SPR-Permits°/020Improvements°/020Agreement°/020Template.pdf. It will detail the approved
haul route(s), outline when off-site improvements will be triggered, and include a maintenance agreement
for the haul routes. Possible mitigations included in the road maintenance agreement may include but are
not limited to: dust control, specified haul routes, damage repairs, and future improvement triggers.
DRAINAGE REQUIREMENTS
This area IS within a Non-Urbanizing Drainage Area: Non-Urbanizing Drainage Areas typically require
detention of runoff from the 1-hour, 100-year,storm falling on the developed site and release of the detained
water at the historic runoff rate of the 1-hour, 10-year storm falling on the undeveloped site for NON-
URBANIZING areas.
Detention Pond summarized in a Drainage Report:
The applicant has submitted a preliminary drainage report seeking an exception from providing stormwater
detention based on the Weld County Code Section 23-12-30 (Weld County Code has been updated as of
August 51"). Upon review of the report, it was determined that the site does not meet the criteria in the Code
regarding the exemption referenced. In addition, the site has constraints that make providing detention in
the best interest of the County and surrounding properties. Therefore, the applicant shall submit a final
drainage report and detention pond design addressing all comments provided in the Weld County Drainage
Report Review Checklist (a separate document). The report shall be completed by a Colorado Licensed
Professional Engineer and is required prior to recording the USR map. The drainage report must include a
certification of compliance stamped and signed by the PE. A Certification of Compliance form can be found
on the Public Works Development Review website. General drainage report checklist is available on the
engineering website. More complete checklists are available upon request.
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. A Road Maintenance Agreement is required at this location. Road maintenance includes, but is not
limited to, dust control and damage repair to specified haul routes. (Department of Public Works)
B. A Final Drainage Report and Certification of Compliance stamped and signed by a Professional
Engineer registered in the State of Colorado is required. (Department of Public Works)
C. The applicant shall submit a recorded copy of any agreement signed by all of the owners of the property
crossed by the access. The access shall be for ingress, egress, utilities and shall be referenced on the
USR map by the Weld County Clerk and Recorder's Reception number. (Department of Public Works)
D. The plan shall be amended to delineate the following:
1. County Road 25 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 location, access type(s) (Agriculture, Residential,
Commercial/Industrial, and/or Oil and Gas), approved access width and the appropriate turning
radii (60')on the site plan. If necessary,the applicant shall obtain an access permit in the approved
location prior to construction. (Department of Public Works)
4. Show the approved Colorado Department of Transportation (CDOT) access(es) on the site plan
and label with the approved access permit number if applicable. (Department of Public Works)
5. Show and label the approved tracking control on the site plan. (Department of Public Works)
6. 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)
7. Show and label a minimum 30-foot wide access and utility easement to provide legal access to the
project site on the site plan. (Department of Public Works)
8. Show and label the accepted drainage features. Stormwater ponds should be labeled as
"Stormwater Detention, No-Build or Storage Area" and shall include the calculated volume.
(Department of Public Works)
9. Show and label the drainage flow arrows. (Department of Public Works)
10. 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 and tracking control 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)
At/ �'' ' WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
Nr 1555 North 17th Avenue, Greeley, CO 80631 www,weldhealth,org
couMemorandum
To: Angela Snyder
From: Lauren Light, Environmental Health Services
Date: July 29, 2019
Re: USR79-0050 Oak Leaf Solar
Environmental Health Services has reviewed this proposal for a Site-Specific
Development Plan and Use by Special Review Permit for a small scale solar facility
(2MW) in the A (Agricultural) Zone District.
As no employees will be located at the site, permanent water and sewer is not required.
Portable toilets, hand washing units and bottled water can be utilized during
construction.
Environmental Health Services recommends that 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.
5. The operation shall comply with all applicable rules and regulations of State and
Federal agencies and the Weld County Code.
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