HomeMy WebLinkAbout20203720.tiffName.
USE BY SPECIAL REVIEW (USR) APPLICATION
F9 PLANNING DEPARTMENT USE.
AMOUNT S
APPLICATION RECEIVED BY
DATE RECEIVED
CASE PcASSIGNED
PLANNER ASSIGNED
PROPERTY INFORMATION
!Ste property currently in violation?
No/
■
Parcel Number_ 2 1 1 1 7 0
Yes Violation Case Number.
Vacant Lived - Address to b -Q Determined
Site Address.
0 U U 1
None
Legal Description.
17
Section:
NE
3
Township
N. Range
Ag racu1tura+ 1 33
W Zoning District Acreage:
N/A
Within subdivision or townsite2 INo / fYes Name.
Well Permit for Pivot (No water proposed for solar lac lity)
Water (well permit # or water district tap #):
None
Sewer (On -site wastewater treatment system permit # or sewer account #):
Floodplain UNo fDYes Geological Hazard
PROPERTY OWNER(S)
John F Leonard (Keits of) - d o Gtranun Csirr Mien. s99 attached Page 2 far complete list of property Done,%)
No / ii Yes Airport Overlay
Company.
N/A
1:1
No /Yes
Phone ft (720) 435-2gg6
Email ga-crr196afilgrrtail corn
Street Address: 922 Collyer Street
City/State/Zip Code. Longmont/CO/80501
Name: N/A
Company: N/A
Phone #.
N/A
Street Address:
Email: WA
City/State/Zip Code Nth
APPLICANT/AUTHORIZED AGENT (Authorization Form must be included if there is an Authorized Agent)
Name: Richard L 'Miller. AICP
Company: SunShare, t.LC
Phone #: (303) X9-2128
Email. r►fliller@rysU,fshare corn
Street Address: 1724 Gilpin Street
City/State/Zip Code: Denver/CO/80218
I (We) hereby depose and state under penalties of perjury that all statements. proposals, and/or plans submitted with
or contained within the application are true and correct to the best of my (our) knowledge Alli owners of the property
must sign this application. If an Authorized Agent signs, an Authorization Form signed by all fee owners must be
included with the application if the fee owner is a corporation, evidence must be included indicating the signatory has
the legal authority to.sign► for the corporation.
cectotat •4"' "y-77(7 _
Signature
•
A r14 I C_-._ ,/
Al ` :
Date
Signature
Print Print
Date
_ DERAR`f tQF PIANNIIVGANE ULLD1NG.
D_EPARTIVIIr_ NT OF PLI gLic HEALTH AND ENVIRON NMENT_
1555 NORTH 17T t AVENUE
GREELEY, CO 8-0631
AUTHORIZATION FORM -FOR BUILDING, PLANNING AND HEALTH DEPARTMENT PI~RMLTS
AND SERVICES
the +ruler set forth on the attached
Sun-4fare, LLC
give permiss an to
()wrierplease plait) (Applicant/Agent = please pyint)
to apply for -any Panning, Building or Health Department permits or seivrces on our i al1a'Ir, ti t tli proppriy
Ic etisat;
the seuthweet comer or WC i 2-9 and R 24 [Parcel ID Number 121117t06617
Legal Description WE4 of tion 17 . Townsfip N, R?nge66-W
Strbfttvi on Name N/A lot_NI A Block N1A
"Property ,Owner`s trrlvrmatrott:
Phone.: (_ -`
Applic?ntfApantcontact Information'
laom 809-2128
'Phi.- - - _
— mart 9aca{1J6Q11:4amuiI i m
E-M$lI, rmiI►er a" mysunsharo cOltt
Email norreeimndertce.ta-beSent Cos Owner_ ❑ AppflcantUAgenL _Q _Both
Postal service correspondence to besent to' (choose only one) Owrier .� ApplicantIAgent -El
This project ma proposad4,(0 MW -tA6), 4.826 MW- top) Carrirnunliy-3oi'at=Vaclifty,
Pdtcfitidriai alto: -
Please see chart d-4lfgtiature pate
Owner Signature.
-
— - - bite: - --- - -- -
Owner Signature.
USE BY SPECIAL REVIEW (LISTS) APPUCATION
LIST OF PRoPERtY OWNERS
Kay Kugel Sachs (beneficiary Kay Kugel Satbs rust dated 12/14"2001), an undivided 6.25% intere
Gary P. Kugel TrUstiba Janic K. Kugel under Will dated October 27, 2009, an undivided 6.25% interest
Bryan Kugel, Trustee of the Bryan Kugel Living Trustdated August 9, 2000, an undivided 6 25% interest
Paula B. Carr Revocable Living Trust dated June 14, 2016, an undivided 32.295% interest
Troy-Skogmo, an undivided 1646% interest
Cynthia L Walters Revocable Liv(mg Trust dated Seisternber 28, 2016, an undivided 32.195% interest
PAGE 2
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SIONATURa PAGE TO ifirfitDOUNTY DefiARTMI NT OF PLANNING AND ®UIL tNG
AUTO QR1ZATION FORM -
We, the tincierStrrad owners. give periril sian,to SunSI ara, 1.1.4 -to -apply for any Planning,
Building or Septic permitt on our pehalf, ro ,thit ,ctitain`r at proprty Dealeci in Wahl County,
Cclorado and known by,Pardel-No, 2. �24,77783O58475.
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Cg�' Snitti
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Wu), 4 f —
kitiread,Kt g81, ,as Tcuafae,14 th$ Gary P, Kugc1
Trust 1bo Janice K, Kugel undat Wilksicated'Oataber
27, 2009, a$ to an undivided 8,2t}% Interest
�+tnn�6r
p Cloy rn# 4uu(,w- --
3ar aGatT, as Tro Ttig Paula R, Carl' living
Ti
rust dated ,lone i4, 201, ei3 ,to gn uridtvided
32.2955%`intaitr it
_Ooeoarad pie;
- ia� es to an undivided 16.86&% -inter t
C4441;rnirdiii
_ y hla ,Waiters, "at Truster- of the Cynthia I..
W_atters.R Ara Living Trust dated September
28, 201, as to' an undivided 32 295% Interest
iSignetdrres continua on the following ,page 7
atii.31o3-53445
CONTINUED:
SIGNATURE PAGE TO WELD COUNTY DEPARTMENT OF PLANNING AND BUILDING
AUTHORIZATION FORM
asa rutte of the : ryan Kugel Living
T st dated Acxgus! 9, 200D, as to an undivided
5% interest
USE BY SPECIAL REVIEW (USR)
RESPONSE TO QUESTIONNAIRE
Vasquez V
(Revised 9-25-2020)
Use by Special Review (USR) Planning Questionnaire
1 Explain the proposed use and business name
Response This application is for a medium -scale 4 000 MW (AC), 4 826 MW (DC), community
solar facility The project name is Vasquez V
2 Explain the need for the proposed use
Response In 2010, the Colorado State Legislature passed the landmark Community Solar
Facility Act that established a new market in the solar industry, providing Xcel Energy customers
with additional energy choices Community Solar Facilities are field installations of solar panels
connected directly to Xcel Energy's distribution grid Residents, businesses, and governmental
customers can opt to use the solar energy from those panels to offset their electricity bill
instead of installing panels on their property It works much the same way as putting a rooftop
solar system on a house This provides a viable alternative for those who would like to use solar
power but cannot install a rooftop system
3 Describe the current and previous use of the land
Response The land has historically been used for agricultural purposes The proposed solar
facility will occupy the property for 25 to 40 years Once the useful life of the proposed solar
facility has been realized, the land can be returned to agricultural uses The temporary use of
the land for a solar facility will allow time for the land to fallow and restore soil viability for
future crops
4 Describe the proximity of the proposed use to residences
Response The closest residence to the proposed facility is a farmhouse located adjacent to the
northwest corner of the subject property To help minimize the visual impact to this residence,
SunShare will install screening along the western border of the subject property, in the vicinity
of the residence This screening will consist of a game fence and planting Rocky Mountain
Junipers, that will provide year-round screening of the proposed facility SunShare will
coordinate with the tenant farmer to obtain water for the newly planted trees to help ensure
the trees are established and maintained during the entire operation phase of the facility
SunShare will contact the owner of the farmhouse to discuss the proposed landscaping and
receive their input regarding the proposed screening
There are two other farmhouses, each approximately three -tenths of a mile from the subject
property One home is north of the proposed solar facility on Weld County Road 29 and the
other is east of the proposed facility on Weld County Road 34 These homes should not be
negatively impacted by the proposed solar facility
5. Describe the surrounding land uses of the site and how the proposed use is compatible with
them.
Response: To the north of the subject property, there is a 21.5 -acre oil/gas facility owned by
Duke Energy Field Services, LP. The balance of the land to the north is 119.88 -acre parcel owned
by Kerr-McGee Oil & Gas Onshore, LP which is vacant ground, except for three (3) oil/gas
facilities.
To the east of the subject property, there is a 557.69 -acre parcel that is owned by the State of
Colorado. This parcel has multiple oil/gas facilities, an existing 2 MW community solar facility,
and the balance on the land appears to be for agricultural uses.
To the south of the subject property, there is a 161.41 -acre parcel that has an existing
farmhouse and agricultural uses. There are also several oil/gas facilities on the property.
To the west of the subject property there is a 75.81 -acre parcel that has an existing farmhouse
and agricultural uses.
The proposed community solar facility is very compatible with the surrounding uses. The
proposed use has no odors or noise, and once the construction phase is completed, there will be
very limited traffic associated with the use. The panels are coated with an anti -reflective
technology to enhance their ability to capture sunlight, while minimizing reflective glare. The
site will not require grading which will help minimize any negative drainage impacts to
surrounding properties. Any areas that are disturbed during the construction phase will be re-
seeded with native grasses and wildflowers. The existing farmhouse west of the proposed
facility will be screened by the installation of Rocky Mountain Junipers, planted on the western
edge of the subject property. Once the useful life of the facility is reached, the panels, racking,
cables, and other equipment will be removed and the site returned to the condition it was in
prior to the solar facility being built.
6. Describe the hours and days of operation (e.g. Monday thru Friday 8:00 a.m. to 5:00 p.m.).
Response: Solar facilities are unmanned facilities that operate 24-7, but only produce power
during the daylight hours. During the equipment delivery/construction phase, there will be a
construction crew of approximately 20 full-time workers on the site. The site will be occupied
Monday through Saturday, 8:00 A.M. to 5:00 P.M. during the construction phase. The 4.75 MW
(AC), 4.99 MW (DC) facility will take approximately one -hundred nine (109) days to construct
and interconnect. Once the construction phase is completed, the site will be visited quarterly
for routine maintenance and as needed for emergency maintenance. In addition, mowing and
2
I SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
noxious weed control crews will also be on the site as needed. There will be no exterior lighting
associated with the proposed facility.
7. Describe the number of employees including full-time, part-time, and contractors. If shift work
is proposed, detail number of employees, schedule and duration of shifts.
Response: During the equipment delivery/construction phase, there will be approximately 20
full-time workers on the site. After construction, a one or two person crew will visit the site
quarterly for routine maintenance and as needed for corrective maintenance. There is no shift
work being proposed.
8. Describe the maximum number of users, patrons, members, buyers or other visitors that the
site will accommodate at any one time.
Response: During the delivery/construction phase, approximately 20 people will be on site. In
addition, there will be approximately 8-10 delivery trucks that will deliver equipment to the site
during the equipment/construction phase. After construction, the site will be an unmanned
facility.
9. List the types and maximum number of animals to be on the site at any one time (for dairies,
livestock confinement operations, kennels, etc.).
Response: There will be no animals on the site once the proposed solar use is commenced.
10. List the types and number of operating and processing equipment.
Response: There will be a total of 12,012 400W Monocrystalline modules at this proposed
facility.
11. List the types, number and uses of the existing and proposed structures.
Response: There are no existing structures on the subject property. There will be no structures
associated with the proposed solar facility.
12. Describe the size of stockpile, storage or waste areas.
Response: There will be no storage or stockpiling of wastes, chemicals, and/or petroleum on the
site. Any fuel needed for equipment during the construction phase will be brought to the site
on portable fuel trucks. During the construction phase, there will be a temporary materials and
equipment laydown yard/parking for the construction phase only, located on the interior of the
facility. This laydown/parking area will be approximately 50' X 250' in size and will be removed
after the construction phase is completed.
3
lAtk
• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
13. Describe the method and time schedule of removal or disposal of debris, junk and other wastes
associated with the proposed use.
Response: During the construction phase, waste will be stored in refuge dumpsters, which will
be emptied on a regular basis or as needed. Once the facility is operational, there will be no
waste or refuge produced from the solar operation. Any waste or trash created while
maintaining the facility will be removed from the site at the time the maintenance is performed.
14. Include a time -table showing the periods of time required for the construction of the operation.
Response: The following is a schedule of time required for each phase of the construction
operation:
■ Solar Facility Components First Deliver
■ Perimeter Fence Installation
■ Solar Panel Foundation Installation
■ Racking, Trenching, Wiring
■ Solar Panel Installation
■ Inspection & Set Meters
■ System Testing & Commissioning
Day 1
Day 1 to Day 11
Day 1 to Day 30
Day 30 to Day 64
Day 64 to Day 94
Day 94 to Day 99
Day 99 to Day 109
15. Describe the proposed and existing lot surface type and the square footage of each type (i.e.
asphalt, gravel, landscaping, dirt, grass, buildings).
Response: The subject property is currently being farmed and will need to be re -seeded within
the construction area. Following the completion of the construction for each phase, disturbed
areas within the limits of construction, such as roadcuts, utility trenches, and other areas where
vegetation has been removed, altered, or eliminated, will be reseeded with native grass seed
and wildflower mix. There will be approximately 29,000 square feet of gravel access drive,
including the hammerhead turn -around at the southern end of the access drive. In addition,
there will be a gravel laydown area that is approximately 12,500 square feet, for a total of 41,
500 square feet of gravel surface area. There will be two (2) concrete transformer pads, each
measuring approximately 48 square feet, for a total of 96 square feet of concrete area.
Landscaping will be installed along the western border of the subject property. The actual
square footage of landscaping will be determined during the USR application process. There are
no existing buildings on the subject property and no new buildings are being proposed for the
intended use.
16. How many parking spaces are proposed? How many handicap -accessible parking spaces are
proposed?
4
TAV
4,1
'1SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
Response: There will be two (2) internal parking spaces for vehicles servicing the facility. There
will be no handicap -accessible parking spaces provided, as this is not a facility for general public
use.
17. Describe the existing and proposed fencing and screening for the site including all parking and
outdoor storage areas.
Response: The two (2) internal parking spaces will be screened by the solar array. There will be
no outdoor storage associated with this proposed solar facility. To comply with the National
Electric Code, there will be an 8' tall game fence installed around the entire perimeter of the
site. The fence and gate will be constructed of 4" X 4" welded rod material with a barbless
wire apron extended out at a 45 -degree angle for the top 1' of fencing. The fence will be
painted with a color to blend with the existing site conditions.
18. Describe the existing and proposed landscaping for the site.
Response: The entire parcel has been used for agricultural purposes and is a dirt surface.
Once the construction phase is completed, the area within the solar facility fence will be
seeded with a native grasses and wildflower mixture.
As previously mentioned, the closest residence to the proposed facility is a farmhouse located
adjacent to the northwest corner of the subject property. To help minimize the visual impact to
this residence, SunShare, LLC will install screening along the western border of the subject
property, in the vicinity of the residence. This screening will consist of a game fence and
planting Rocky Mountain Junipers, that will provide year-round screening of the proposed
facility. SunShare, LLC will coordinate a water supply for the newly planted trees with the
current tenant farmer. A watering schedule will be prepared to help ensure the trees survive
and are maintained during the entire operation phase of the facility.
19. Describe reclamation procedures to be employed as stages of the operation are phased out or
upon cessation of the Use by Special Review activity.
Response: The subject property is currently being farmed and will need to be re -seeded within
the construction area. Following the completion of the construction for each phase, disturbed
areas within the limits of construction, such as roadcuts, utility trenches, and other areas where
vegetation has been removed, altered, or eliminated, will be reseeded with native grass seed and
wildflower mix. Once the useful life of the facility is realized, the panels, racking, cables, and
other equipment will be removed and the site returned to the condition it was in prior to the
solar facility being built.
20. Describe the proposed fire protection measures.
5
• SunShare
COMMUNITY SOLAR
1724 Gilpin Street. Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
Response: The subject property is within the Platteville-Gilcrest Fire District service area. Fire
access within the facility will be via a 20' -wide gravel driveway, with a hammerhead turn-
around at the end of the drive. Grasses within the solar facility will be mowed as needed, to
help prevent the spread of range fires.
21. Explain how this proposal is consistent with the Weld County Comprehensive Plan per Chapter
22 of the Weld County Code.
Response: The Weld County Comprehensive Plan (Weld County Code, Chapter 22), addresses
"Alternative Energy Resources — Goals and Policies". The proposed use of the subject property
as a solar power generation facility is consistent with the goals and policies of this section.
Alternative Energy Goal No. 1 is to "Support and encourage research, development and use of
alternative energy sources". This proposed use is for the development and use of alternative
energy sources by the citizens and business of Weld County. This facility will provide a clean,
renewable energy source for citizens and businesses who are served by Xcel Energy.
Alternative Energy Policy 1.5. Calls for supporting and developing the use of solar energy. This
proposed use is in keeping with this policy. Recommended Strategy AE.1.5.b. proposes
"Creating incentives that encourage large-scale commercial solar collections". The proposed
project, would be considered a Medium -Scale Solar. Weld County recently reviewed its
regulations regarding solar power generation facilities. Strategy AE.1.6.a. of Chapter 22
addresses this and recommends reviewing County regulations to ensure support of all
alternative energy resources for small and large-scale applications.
22. Explain how this proposal is consistent with the intent of the zone district in which it is located.
(Intent statements can be found at the beginning of each zone district section in Article III of
Chapter 23 of the Weld County Code.)
Sec. 23-3-10. - Intent.
"Agriculture in the COUNTY is considered a valuable resource which must be
protected from adverse impacts resulting from uncontrolled and undirected business.
industrial and residential land USES. The A (Agricultural) Zone District is established to
maintain and promote agriculture as an essential feature of the COUNTY. The A
(Agricultural) Zone District is intended to provide areas for the conduct of agricultural
activities and activities related to agriculture and agricultural production. and for areas
for natural resource extraction and energy development, without the interference of
other. incompatible land USES."
Response: The subject property is zoned Agricultural (A) and is within a "Non -Urbanizing
Drainage Area". Medium -Scale Solar Facilities are permitted as a Use by Special Review in the
Agricultural zone district. The Use by Special Review process allows for adequate review by
the Planning staff, Planning Commission, and the Board of County Commissioners, to ensure
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)1J ki
• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
compatibility with surrounding land uses. Additionally, citizens are afforded adequate
opportunities to express their concerns in the public hearing setting before any solar facility
can be constructed on agriculturally- zoned land. Within the stated intent of the
"Agricultural" Zone District is the specific reference to "natural resource extraction" and
"energy development". This proposed solar power generation plant is totally in compliance
with the intent of the "Agricultural" Zone District. Solar facilities allow farmers and ranchers
another use for their land and a viable stream of income beyond traditional farming and
ranching uses.
23. Explain how this proposal will be compatible with future development of the surrounding area
or adopted master plans of affected municipalities.
Response: The subject property is just outside the Platteville Urban Growth Area. The Town of
Gilcrest is to the north, but the subject property is not within the town's urban growth area.
The comprehensive plans for Platteville and Gilcrest are both silent on renewable energy
development, however they do encourage the development of oil/gas energy as part of their
e conomic future. Weld County provided two (2) Notices of Inquiry for the Towns of Platteville
and Milliken. The Town of Platteville has responded and is not interested in pursuing
annexation at this time. The Town of Milliken has responded directly to the Weld County
Planning staff.
The proposed solar facility will be compatible with future development of the surrounding
area. Much of the surrounding area is now and will probably remain agricultural in nature for
the foreseeable future. In addition, oil/gas production will likely continue in the immediate
area. Solar development is very compatible with farming and ranching uses and oil/gas
development. Renewable projects provide farmers and ranchers a viable alternate use to
traditional farming and ranching uses on their land. Since there are no permanent structures
being built as part of this proposal, the land will be returned to its agricultural use once the
e conomic viability of the solar facility has ended.
24. Explain how this proposal impacts the protection of the health, safety and welfare of the
inhabitants of the neighborhood and the County.
Response: The proposed solar facility will have no negative impacts on the health, safety, or
welfare of the inhabitants of the neighborhood or the County. Solar facilities produce no
n oise, dust, pollution, fumes, or other negative impacts, and in general are a very good
n eighbor to surrounding property owners. After the construction phase, the traffic is very
minimal and limited to site visits for routine repairs and monitoring. There are no lights
associated with the proposed facility, therefore, there will be no impact to the night sky or
glare on adjacent properties. Solar facilities, such as the one proposed with this application,
produce clean, renewable power, which is an alternative to traditional fossil fuels used to
produce energy. To help minimize the visual impact to the one residence that is adjacent and
7
ISunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver. CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
to the west of the subject property, a screening of Rocky Mountain Junipers will be installed
and maintained on a portion of the west boundary of the subject property.
25. Describe any irrigation features. If the proposed use is to be located in the A (Agricultural)
Zone District, explain your efforts to conserve prime agricultural land in the locational decision
for the proposed use.
Response: SunShare, LLC will coordinate a water supply for the newly planted trees with the
current tenant farmer. A watering schedule will be prepared to help ensure the trees survive and
are maintained during the entire operation phase of the facility.
The subject property is located in the "A" (Agricultural) Zone District. The proposed use is
temporary and soils will not be disturbed or removed from the property. With the proposed
solar facility being in place for up to forty (40) years, the land will lie fallow. Fallowing the land
will allow the soil to rest and replenish nutrients, which can be leached from over -planting and
regular irrigation. Fallowing the soil can cause potassium and phosphorus from deep below to
rise toward the soil surface, where it can be used by crops later. Other benefits of fallowing
soil are that it raises levels of carbon, nitrogen, and organic matter, improves moisture -holding
capacity, and increases beneficial microorganisms in the soil. Once the economic viability of
the solar facility is realized, the subject property will likely be returned to agricultural uses.
26. Explain how this proposal complies with Article V and Article XI of Chapter 23 if the proposal is
located within any Overlay Zoning District (Airport, Geologic Hazard, or Historic Townsites
Overlay Districts) or a Special Flood Hazard Area identified by maps officially adopted by the
County.
Response: The subject property is not located within any Overlay Zoning District or Special
Flood Hazard Area.
27. Detail known State or Federal permits required for your proposed use(s) and the status of each
permit. Provide a copy of any application or permit.
Response: At this time, no known State or Federal permits will be required for the proposed
use. During the review process, if any such permits are required, the associated application
and permit will be provided to the Weld County Planning Department.
Environmental Health Questions:
1. What is the drinking water source on the property? If utilizing a drinking water well, include
either the well permit or well permit application that was submitted to the State Division of
8
j4tv
I SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
Water Resources. If utilizing a public water tap, include a letter from the water district, a tap
or meter number, or a copy of the water bill.
Response: Since this is an unmanned facility, no water supply is being proposed. During the
construction phase of the project, the contractor will provide the work crew with potable water via
portable water coolers.
2. What type of sewage disposal system is on the property? If utilizing an existing septic system
provide the septic permit number. If there is no septic permit due to the age of the existing
septic system, apply for a septic permit through the Department of Public Health and
Environment prior to submitting this application. If a new septic system will be installed,
please state "a new septic system is proposed". Only propose portable toilets if the use is
consistent with the Department of Public Health and Environment's portable toilet policy.
Response: Since this is an unmanned facility, no septic system is being proposed. During the
construction phase, the contractor will provide a portable san-o-let for the construction crew.
3. If storage or warehousing is proposed, what type of items will be stored.
Response: A steel container (8' X 40') is being proposed during the construction phase only to
store equipment and spare parts for the solar facility. The container is to be positioned in the
interior of the solar arrays, which should lessen its visual impact. The container will be painted a
light tan to help blend the container with the natural environment. The container will be removed
after construction phase is completed.
4. Describe where and how storage and/or stockpile of wastes, chemicals, and/or petroleum will
occur on this site.
Response: There will be no stockpiles of wastes, chemicals, or petroleum associated with this
facility.
5. If there will be fuel storage on site, indicate the gallons and the secondary containment. State
the number of tanks and gallons per tank.
Response: There will be no fuel storage associated with this facility. Any fuel required during the
construction phase will be brought to the site by fuel trucks, which will leave the site after the re-
fueling is completed.
6. If there will be washing of vehicles or equipment on site, indicate how the wash water will be
contained.
Response: There will be no washing of vehicles or equipment on site, with the exception of
washing mud from the tires of vehicles leaving the site during the construction phase. There will
be a 25' X 16' track mat located near the access drive at Weld County Road 34. This mat will
consist of 1-3" washed rock, 6" thick, over a Mirafi HP 270 Geotextile or equivalent base.
J
a�jSunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
7. If there will be floor drains, indicate how the fluids will be contained.
Response: There will be no floor drains associated with this facility.
8. Indicate if there will be any air emissions (e.g. painting, oil storage, etc.).
Response: There will be no air emissions associated with this facility.
9. Provide a design and operations plan if applicable (e.g. composting, landfills, etc.).
Response: There will be no composting or landfills associated with this use.
10. Provide a nuisance management plan if applicable (e.g. dairies, feedlots, etc.).
Response: A nuisance plan is not applicable because no dairy or feedlot operations are being
proposed.
11. Additional information may be requested depending on type of land use requested.
Response: Understood.
Public Works Questions:
1. Include a traffic narrative with the information below. A traffic impact study may be required.
Improvements to adjacent streets/roads may be necessary to provide adequate safe and
efficient transportation to and from the site. An Improvements Agreement may be required.
a. The projected number of vehicle trips (average per day, maximum per day, peak hour
data) to and from the site and the type pf vehicles (passenger, semi -truck, etc.).
b. Describe how many roundtrips/day are expected for each vehicle type: Passenger
Cars/Pickups, Tandem Trucks, Semi-Truck/Trailer/RV (Roundtrip = 1 trip in and 1 trip
out of site).
Describe the expected travel routes for site traffic.
d. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the
north, 20% from the south, 30% from the east, etc.).
e. Describe the time of day that you expect the highest traffic volumes to and from the
site.
Response: Please see the enclosed Traffic Narrative.
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'1SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
2. Describe where the access to the site is planned.
Response: The proposed site access is 1,981' west of the intersection of Weld County Road 34 and
Weld County Road 29.
3. Drainage Design: Design and construction of a detention pond as described in an approved
Drainage Report is required unless the project falls under an exception to stormwater detention
requirements per code. (See below.). Does your site qualify for an exception to stormwater
detention? If so, describe in a drainage narrative the following:
a. Which exception is being applied for? Include supporting documentation.
b. Does the water flow onto the property from an offsite source? If so, from where?
c. Describe where the water flows to as it leaves the property
d. Describe the direction of flow across the property.
e. Describe the location of any irrigation facilities adjacent to or near the property.
f. Describe any previous drainage problems with the property.
Response: Please see the enclosed USR plan set, Sheet C.100, which shows the water flows
offsite onto the subject property, on -site and off the subject property, and across the subject
property. The enclosed "Drainage Report" provides more information.
4. If your site does not qualify for an exception, the following applies:
a. A Drainage Report summarizing the detention pond design with construction
drawings and maintenance plan shall be completed by a Colorado Licensed
Professional Engineer and adhere to the drainage related sections of the Weld County
Code.
b. The Drainage Report must include a certification of compliance, which can be
found on the Public Works website, stamped and signed by the PE.
c. See the attached Drainage Report Review Checklist.
Response: Please see the enclosed Drainage Report prepared by Westwood.
Building Questions:
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I SunShare
COMMUNITY SOLAR
1724 Gilpin Street. Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
1. List the type, size (square footage), and number of existing and proposed structures.
Show and label all existing and proposed structures on the USR drawing. Label the use of
the building and the square footage.
Response: There are no buildings associated with this proposed use.
2. Explain how the existing structures will be used for this USR.
Response: There are no existing structures.
3. List the proposed use(s) of each structure.
Response: A steel container (8' X 40') is being proposed during the construction phase only to
store equipment and spare parts for the solar facility. The container is to be positioned in the
interior of the solar arrays, which should lessen its visual impact. The container will be
painted a light tan to help blend the container with the natural environment. The container
will be removed after construction phase is completed.
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a� SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
USE BY SPECIAL REVIEW (USR)
RESPONSE TO QUESTIONNAIRE
Vasquez V
(Revised 9-25-2020)
Use by Special Review (USR) Planning Questionnaire
1 Explain the proposed use and business name
Response This application is for a medium -scale 4 000 MW (AC), 4 826 MW (DC), community
solar facility The project name is Vasquez V
2 Explain the need for the proposed use
Response In 2010, the Colorado State Legislature passed the landmark Community Solar
Facility Act that established a new market in the solar industry, providing Xcel Energy customers
with additional energy choices Community Solar Facilities are field installations of solar panels
connected directly to Xcel Energy's distribution grid Residents, businesses, and governmental
customers can opt to use the solar energy from those panels to offset their electricity bill
instead of installing panels on their property It works much the same way as putting a rooftop
solar system on a house This provides a viable alternative for those who would like to use solar
power but cannot install a rooftop system
3 Describe the current and previous use of the land
Response The land has historically been used for agricultural purposes The proposed solar
facility will occupy the property for 25 to 40 years Once the useful life of the proposed solar
facility has been realized, the land can be returned to agricultural uses The temporary use of
the land for a solar facility will allow time for the land to fallow and restore soil viability for
future crops
4 Describe the proximity of the proposed use to residences
Response The closest residence to the proposed facility is a farmhouse located adjacent to the
northwest corner of the subject property To help minimize the visual impact to this residence,
SunShare will install screening along the western border of the subject property, in the vicinity
of the residence This screening will consist of a game fence and planting Rocky Mountain
Junipers, that will provide year-round screening of the proposed facility SunShare will
coordinate with the tenant farmer to obtain water for the newly planted trees to help ensure
the trees are established and maintained during the entire operation phase of the facility
SunShare will contact the owner of the farmhouse to discuss the proposed landscaping and
receive their input regarding the proposed screening
There are two other farmhouses, each approximately three -tenths of a mile from the subject
property One home is north of the proposed solar facility on Weld County Road 29 and the
other is east of the proposed facility on Weld County Road 34 These homes should not be
negatively impacted by the proposed solar facility
5. Describe the surrounding land uses of the site and how the proposed use is compatible with
them.
Response: To the north of the subject property, there is a 21.5 -acre oil/gas facility owned by
Duke Energy Field Services, LP. The balance of the land to the north is 119.88 -acre parcel owned
by Kerr-McGee Oil & Gas Onshore, LP which is vacant ground, except for three (3) oil/gas
facilities.
To the east of the subject property, there is a 557.69 -acre parcel that is owned by the State of
Colorado. This parcel has multiple oil/gas facilities, an existing 2 MW community solar facility,
and the balance on the land appears to be for agricultural uses.
To the south of the subject property, there is a 161.41 -acre parcel that has an existing
farmhouse and agricultural uses. There are also several oil/gas facilities on the property.
To the west of the subject property there is a 75.81 -acre parcel that has an existing farmhouse
and agricultural uses.
The proposed community solar facility is very compatible with the surrounding uses. The
proposed use has no odors or noise, and once the construction phase is completed, there will be
very limited traffic associated with the use. The panels are coated with an anti -reflective
technology to enhance their ability to capture sunlight, while minimizing reflective glare. The
site will not require grading which will help minimize any negative drainage impacts to
surrounding properties. Any areas that are disturbed during the construction phase will be re-
seeded with native grasses and wildflowers. The existing farmhouse west of the proposed
facility will be screened by the installation of Rocky Mountain Junipers, planted on the western
edge of the subject property. Once the useful life of the facility is reached, the panels, racking,
cables, and other equipment will be removed and the site returned to the condition it was in
prior to the solar facility being built.
6. Describe the hours and days of operation (e.g. Monday thru Friday 8:00 a.m. to 5:00 p.m.).
Response: Solar facilities are unmanned facilities that operate 24-7, but only produce power
during the daylight hours. During the equipment delivery/construction phase, there will be a
construction crew of approximately 20 full-time workers on the site. The site will be occupied
Monday through Saturday, 8:00 A.M. to 5:00 P.M. during the construction phase. The 4.75 MW
(AC), 4.99 MW (DC) facility will take approximately one -hundred nine (109) days to construct
and interconnect. Once the construction phase is completed, the site will be visited quarterly
for routine maintenance and as needed for emergency maintenance. In addition, mowing and
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I SurShare
COMMUNITY SOLAR
1724 Gilpin Street. Denver; CO 80218 • info@mysunshare.com • 800 793.0786 • MYSUNSHARE.COM
noxious weed control crews will also be on the site as needed. There will be no exterior lighting
associated with the proposed facility.
7. Describe the number of employees including full-time, part-time, and contractors. If shift work
is proposed, detail number of employees, schedule and duration of shifts.
Response: During the equipment delivery/construction phase, there will be approximately 20
full-time workers on the site. After construction, a one or two person crew will visit the site
quarterly for routine maintenance and as needed for corrective maintenance. There is no shift
work being proposed.
8. Describe the maximum number of users, patrons, members, buyers or other visitors that the
site will accommodate at any one time.
Response: During the delivery/construction phase, approximately 20 people will be on site. In
addition, there will be approximately 8-10 delivery trucks that will deliver equipment to the site
during the equipment/construction phase. After construction, the site will be an unmanned
facility.
9. List the types and maximum number of animals to be on the site at any one time (for dairies,
livestock confinement operations, kennels, etc.).
Response: There will be no animals on the site once the proposed solar use is commenced.
10. List the types and number of operating and processing equipment.
Response: There will be a total of 13,050 modules at this proposed facility; of which 4,872
modules will be the 380W Monocrystalline 144 -Cell Module and 8,178 modules will be the
385W Monocrystalline 144 -Cell Module.
11. List the types, number and uses of the existing and proposed structures.
Response: There are no existing structures on the subject property. There will be no structures
associated with the proposed solar facility.
12. Describe the size of stockpile, storage or waste areas.
Response: There will be no storage or stockpiling of wastes, chemicals, and/or petroleum on the
site. Any fuel needed for equipment during the construction phase will be brought to the site
on portable fuel trucks. During the construction phase, there will be a temporary materials and
equipment laydown yard/parking for the construction phase only, located on the interior of the
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COMMUNITY SOLAR
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1724 Gilpin Street, Denver, CO 80218 • info@mysunshare com • 800.793.0786 • MYSUNSHARE.COM
facility. This laydown/parking area will be approximately 50' X 250' in size and will be removed
after the construction phase is completed.
13. Describe the method and time schedule of removal or disposal of debris, junk and other wastes
associated with the proposed use.
Response: During the construction phase, waste will be stored in refuge dumpsters, which will
be emptied on a regular basis or as needed. Once the facility is operational, there will be no
waste or refuge produced from the solar operation. Any waste or trash created while
maintaining the facility will be removed from the site at the time the maintenance is performed.
14. Include a time -table showing the periods of time required for the construction of the operation.
Response: The following is a schedule of time required for each phase of the construction
operation:
■ Solar Facility Components First Deliver
■ Perimeter Fence Installation
■ Solar Panel Foundation Installation
■ Racking, Trenching, Wiring
■ Solar Panel Installation
■ Inspection & Set Meters
■ System Testing & Commissioning
Day 1
Day 1 to Day 11
Day 1 to Day 30
Day 30 to Day 64
Day 64 to Day 94
Day 94 to Day 99
Day 99 to Day 109
15. Describe the proposed and existing lot surface type and the square footage of each type (i.e.
asphalt, gravel, landscaping, dirt, grass, buildings).
Response: The subject property is currently being farmed and will need to be re -seeded within
the construction area. Following the completion of the construction for each phase, disturbed
areas within the limits of construction, such as roadcuts, utility trenches, and other areas where
vegetation has been removed, altered, or eliminated, will be reseeded with native grass seed
and wildflower mix. There will be approximately 29,000 square feet of gravel access drive,
including the hammerhead turn -around at the southern end of the access drive. In addition,
there will be a gravel laydown area that is approximately 12,500 square feet, for a total of 41,
500 square feet of gravel surface area. There will be two (2) concrete transformer pads, each
measuring approximately 48 square feet, for a total of 96 square feet of concrete area.
Landscaping will be installed along the western border of the subject property. The actual
square footage of landscaping will be determined during the USR application process. There are
no existing buildings on the subject property and no new buildings are being proposed for the
intended use.
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COMMUNITY SOLAR
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1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
16. How many parking spaces are proposed? How many handicap -accessible parking spaces are
proposed?
Response: There will be two (2) internal parking spaces for vehicles servicing the facility. There
will be no handicap -accessible parking spaces provided, as this is not a facility for general public
use.
17. Describe the existing and proposed fencing and screening for the site including all parking and
outdoor storage areas.
Response: The two (2) internal parking spaces will be screened by the solar array. There will be
no outdoor storage associated with this proposed solar facility. To comply with the National
Electric Code, there will be an 8' tall game fence installed around the entire perimeter of the
site. The fence and gate will be constructed of 4" X 4" welded rod material with a barbless
wire apron extended out at a 45 -degree angle for the top 1' of fencing. The fence will be
painted with a color to blend with the existing site conditions.
18. Describe the existing and proposed landscaping for the site.
Response: The entire parcel has been used for agricultural purposes and is a dirt surface.
Once the construction phase is completed, the area within the solar facility fence will be
seeded with a native grasses and wildflower mixture.
As previously mentioned, the closest residence to the proposed facility is a farmhouse located
adjacent to the northwest corner of the subject property. To help minimize the visual impact to
this residence, SunShare, LLC will install screening along the western border of the subject
property, in the vicinity of the residence. This screening will consist of a game fence and
planting Rocky Mountain Junipers, that will provide year-round screening of the proposed
facility. SunShare, LLC will coordinate a water supply for the newly planted trees with the
current tenant farmer. A watering schedule will be prepared to help ensure the trees survive
and are maintained during the entire operation phase of the facility.
19. Describe reclamation procedures to be employed as stages of the operation are phased out or
upon cessation of the Use by Special Review activity.
Response: The subject property is currently being farmed and will need to be re -seeded within
the construction area. Following the completion of the construction for each phase, disturbed
areas within the limits of construction, such as roadcuts, utility trenches, and other areas where
vegetation has been removed, altered, or eliminated, will be reseeded with native grass seed and
wildflower mix. Once the useful life of the facility is realized, the panels, racking, cables, and
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"1SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare corn • 800 793 0786 • MYSUNSHARE.COM
other equipment will be removed and the site returned to the condition it was in prior to the
solar facility being built.
20. Describe the proposed fire protection measures.
Response: The subject property is within the Platteville-Gilcrest Fire District service area. Fire
access within the facility will be via a 20' -wide gravel driveway, with a hammerhead turn-
around at the end of the drive. Grasses within the solar facility will be mowed as needed, to
help prevent the spread of range fires.
21. Explain how this proposal is consistent with the Weld County Comprehensive Plan per Chapter
22 of the Weld County Code.
Response: The Weld County Comprehensive Plan (Weld County Code, Chapter 22), addresses
"Alternative Energy Resources — Goals and Policies". The proposed use of the subject property
as a solar power generation facility is consistent with the goals and policies of this section.
Alternative Energy Goal No. 1 is to "Support and encourage research, development and use of
alternative energy sources". This proposed use is for the development and use of alternative
energy sources by the citizens and business of Weld County. This facility will provide a clean,
renewable energy source for citizens and businesses who are served by Xcel Energy.
Alternative Energy Policy 1.5. Calls for supporting and developing the use of solar energy. This
proposed use is in keeping with this policy. Recommended Strategy AE.1.5.b. proposes
"Creating incentives that encourage large-scale commercial solar collections". The proposed
project, would be considered a Medium -Scale Solar. Weld County recently reviewed its
regulations regarding solar power generation facilities. Strategy AE.1.6.a. of Chapter 22
addresses this and recommends reviewing County regulations to ensure support of all
alternative energy resources for small and large-scale applications.
22. Explain how this proposal is consistent with the intent of the zone district in which it is located.
(Intent statements can be found at the beginning of each zone district section in Article Ill of
Chapter 23 of the Weld County Code.)
Sec. 23-3-10. - Intent.
`Agriculture in the COUNTY is considered a valuable resource which must be
protected from adverse impacts resulting from uncontrolled and undirected business.
industrial and residential land USES. The A (Agricultural) Zone District is established to
maintain and promote agriculture as an essential feature of the COUNTY. The A
(Agricultural) Zone District is intended to provide areas for the conduct of agricultural
activities and activities related to agriculture and agricultural production, and for areas
for natural resource extraction and energy development, without the interference of
other, incompatible land USES.
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• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunsharecom • 800.793.0786 • MYSUNSHARE.COM
Response: The subject property is zoned Agricultural (A) and is within a "Non -Urbanizing
Drainage Area". Medium -Scale Solar Facilities are permitted as a Use by Special Review in the
Agricultural zone district. The Use by Special Review process allows for adequate review by
the Planning staff, Planning Commission, and the Board of County Commissioners, to ensure
compatibility with surrounding land uses. Additionally, citizens are afforded adequate
opportunities to express their concerns in the public hearing setting before any solar facility
can be constructed on agriculturally- zoned land. Within the stated intent of the
"Agricultural" Zone District is the specific reference to "natural resource extraction" and
"energy development". This proposed solar power generation plant is totally in compliance
with the intent of the "Agricultural" Zone District. Solar facilities allow farmers and ranchers
another use for their land and a viable stream of income beyond traditional farming and
ranching uses.
23. Explain how this proposal will be compatible with future development of the surrounding area
or adopted master plans of affected municipalities.
Response: The subject property is just outside the Platteville Urban Growth Area. The Town of
Gilcrest is to the north, but the subject property is not within the town's urban growth area.
The comprehensive plans for Platteville and Gilcrest are both silent on renewable energy
development, however they do encourage the development of oil/gas energy as part of their
economic future. Weld County provided two (2) Notices of Inquiry for the Towns of Platteville
and Milliken. The Town of Platteville has responded and is not interested in pursuing
annexation at this time. The Town of Milliken has responded directly to the Weld County
Planning staff.
The proposed solar facility will be compatible with future development of the surrounding
area. Much of the surrounding area is now and will probably remain agricultural in nature for
the foreseeable future. In addition, oil/gas production will likely continue in the immediate
area. Solar development is very compatible with farming and ranching uses and oil/gas
development. Renewable projects provide farmers and ranchers a viable alternate use to
traditional farming and ranching uses on their land. Since there are no permanent structures
being built as part of this proposal, the land will be returned to its agricultural use once the
e conomic viability of the solar facility has ended.
24. Explain how this proposal impacts the protection of the health, safety and welfare of the
inhabitants of the neighborhood and the County.
Response: The proposed solar facility will have no negative impacts on the health, safety, or
welfare of the inhabitants of the neighborhood or the County. Solar facilities produce no
n oise, dust, pollution, fumes, or other negative impacts, and in general are a very good
n eighbor to surrounding property owners. After the construction phase, the traffic is very
minimal and limited to site visits for routine repairs and monitoring. There are no lights
associated with the proposed facility, therefore, there will be no impact to the night sky or
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• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
glare on adjacent properties. Solar facilities, such as the one proposed with this application,
produce clean, renewable power, which is an alternative to traditional fossil fuels used to
produce energy. To help minimize the visual impact to the one residence that is adjacent and
to the west of the subject property, a screening of Rocky Mountain Junipers will be installed
and maintained on a portion of the west boundary of the subject property.
25. Describe any irrigation features. If the proposed use is to be located in the A (Agricultural)
Zone District, explain your efforts to conserve prime agricultural land in the locational decision
for the proposed use.
Response: SunShare, LLC will coordinate a water supply for the newly planted trees with the
current tenant farmer. A watering schedule will be prepared to help ensure the trees survive and
are maintained during the entire operation phase of the facility.
The subject property is located in the "A" (Agricultural) Zone District. The proposed use is
temporary and soils will not be disturbed or removed from the property. With the proposed
solar facility being in place for up to forty (40) years, the land will lie fallow. Fallowing the land
will allow the soil to rest and replenish nutrients, which can be leached from over -planting and
regular irrigation. Fallowing the soil can cause potassium and phosphorus from deep below to
rise toward the soil surface, where it can be used by crops later. Other benefits of fallowing
soil are that it raises levels of carbon, nitrogen, and organic matter, improves moisture -holding
capacity, and increases beneficial microorganisms in the soil. Once the economic viability of
the solar facility is realized, the subject property will likely be returned to agricultural uses.
26. Explain how this proposal complies with Article V and Article XI of Chapter 23 if the proposal is
located within any Overlay Zoning District (Airport, Geologic Hazard, or Historic Townsites
Overlay Districts) or a Special Flood Hazard Area identified by maps officially adopted by the
County.
Response: The subject property is not located within any Overlay Zoning District or Special
Flood Hazard Area.
27. Detail known State or Federal permits required for your proposed use(s) and the status of each
permit. Provide a copy of any application or permit.
Response: At this time, no known State or Federal permits will be required for the proposed
use. During the review process, if any such permits are required, the associated application
and permit will be provided to the Weld County Planning Department.
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• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare com • 800.793.0786 • MYSUNSHARE.COM
Environmental Health Questions:
1. What is the drinking water source on the property? If utilizing a drinking water well, include
either the well permit or well permit application that was submitted to the State Division of
Water Resources. If utilizing a public water tap, include a letter from the water district, a tap
or meter number, or a copy of the water bill.
Response: Since this is an unmanned facility, no water supply is being proposed. During the
construction phase of the project, the contractor will provide the work crew with potable water via
portable water coolers.
2. What type of sewage disposal system is on the property? If utilizing an existing septic system
provide the septic permit number. If there is no septic permit due to the age of the existing
septic system, apply for a septic permit through the Department of Public Health and
Environment prior to submitting this application. If a new septic system will be installed,
please state "a new septic system is proposed". Only propose portable toilets if the use is
consistent with the Department of Public Health and Environment's portable toilet policy.
Response: Since this is an unmanned facility, no septic system is being proposed. During the
construction phase, the contractor will provide a portable san-o-let for the construction crew.
3. If storage or warehousing is proposed, what type of items will be stored.
Response: A steel container (8' X 40') is being proposed during the construction phase only to
store equipment and spare parts for the solar facility. The container is to be positioned in the
interior of the solar arrays, which should lessen its visual impact. The container will be painted a
light tan to help blend the container with the natural environment. The container will be removed
after construction phase is completed.
4. Describe where and how storage and/or stockpile of wastes, chemicals, and/or petroleum will
occur on this site.
Response: There will be no stockpiles of wastes, chemicals, or petroleum associated with this
facility.
S. If there will be fuel storage on site, indicate the gallons and the secondary containment. State
the number of tanks and gallons per tank.
Response: There will be no fuel storage associated with this facility. Any fuel required during the
construction phase will be brought to the site by fuel trucks, which will leave the site after the re-
fueling is completed.
6. If there will be washing of vehicles or equipment on site, indicate how the wash water will be
contained.
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I SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare com • 800.793 0786 • MYSUNSHARE.COM
Response: There will be no washing of vehicles or equipment on site, with the exception of
washing mud from the tires of vehicles leaving the site during the construction phase. There will
be a 25' X 16' track mat located near the access drive at Weld County Road 34. This mat will
consist of 1-3" washed rock, 6" thick, over a Mirafi HP 270 Geotextile or equivalent base.
7. If there will be floor drains, indicate how the fluids will be contained.
Response: There will be no floor drains associated with this facility.
8. Indicate if there will be any air emissions (e.g. painting, oil storage, etc.).
Response: There will be no air emissions associated with this facility.
9. Provide a design and operations plan if applicable (e.g. composting, landfills, etc.).
Response: There will be no composting or landfills associated with this use.
10. Provide a nuisance management plan if applicable (e.g. dairies, feedlots, etc.).
Response: A nuisance plan is not applicable because no dairy or feedlot operations are being
proposed.
11. Additional information may be requested depending on type of land use requested.
Response: Understood.
Public Works Questions:
1. Include a traffic narrative with the information below. A traffic impact study may be required.
Improvements to adjacent streets/roads may be necessary to provide adequate safe and
efficient transportation to and from the site. An Improvements Agreement may be required.
a. The projected number of vehicle trips (average per day, maximum per day, peak hour
data) to and from the site and the type pf vehicles (passenger, semi -truck, etc.).
b. Describe how many roundtrips/day are expected for each vehicle type: Passenger
Cars/Pickups, Tandem Trucks, Semi-Truck/Trailer/RV (Roundtrip = 1 trip in and 1 trip
out of site).
c. Describe the expected travel routes for site traffic.
d. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the
north, 20% from the south, 30% from the east, etc.).
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• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
e. Describe the time of day that you expect the highest traffic volumes to and from the
site.
Response: Please see the enclosed Traffic Narrative.
2. Describe where the access to the site is planned.
Response: The proposed site access is 1,981' west of the intersection of Weld County Road 34 and
Weld County Road 29.
3. Drainage Design: Design and construction of a detention pond as described in an approved
Drainage Report is required unless the project falls under an exception to stormwater detention
requirements per code. (See below.). Does your site qualify for an exception to stormwater
detention? If so, describe in a drainage narrative the following:
a. Which exception is being applied for? Include supporting documentation.
b. Does the water flow onto the property from an offsite source? If so, from where?
c. Describe where the water flows to as it leaves the property.
d. Describe the direction of flow across the property.
e. Describe the location of any irrigation facilities adjacent to or near the property.
f. Describe any previous drainage problems with the property.
Response: Please see the enclosed USR plan set, Sheet C.100, which shows the water flows
offsite onto the subject property, on -site and off the subject property, and across the subject
property. The enclosed "Drainage Report" provides more information.
4. If your site does not qualify for an exception, the following applies:
a. A Drainage Report summarizing the detention pond design with construction
drawings and maintenance plan shall be completed by a Colorado Licensed
Professional Engineer and adhere to the drainage related sections of the Weld County
Code.
b. The Drainage Report must include a certification of compliance, which can be
found on the Public Works website, stamped and signed by the PE.
c. See the attached Drainage Report Review Checklist.
Response: Please see the enclosed Drainage Report prepared by Westwood.
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• SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 8007930786 • MYSUNSHARE.COM
Building Questions:
1. List the type, size (square footage), and number of existing and proposed structures.
Show and label all existing and proposed structures on the USR drawing. Label the use of
the building and the square footage.
Response: There are no buildings associated with this proposed use.
2. Explain how the existing structures will be used for this USR.
Response: There are no existing structures.
3. List the proposed use(s) of each structure.
Response: A steel container (8' X 40') is being proposed during the construction phase only to
store equipment and spare parts for the solar facility. The container is to be positioned in the
interior of the solar arrays, which should lessen its visual impact. The container will be
painted a light tan to help blend the container with the natural environment. The container
will be removed after construction phase is completed.
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"1SunShare
COMMUNITY SOLAR
1724 Gilpin Street. Denver, CO 80218 • info@mysunsharecom • 800.793 0786 • MYSUNSHARE.COM
Notice of Inquiry
Development within an Intergovernmental Agreement
Urban Growth Boundary
Pre -application
Case #
PRE20-0094
Date
of Inquiry
6/26/2020
Municipality
with
CPA
or IGA
Town of
Milliken
Name
of
Person
Inquiring
Richard
L.
Miller
Property
Owner
John
F
Leonard
(Heirs
of)
Planner
Chris
Gathman
f
Planner
Phone
Number
970-400-3537
Planner
Email
Address
cgathman@weldgov.com
Legal
Description
1
NE4 of
Section
17, T3N,
R66W
Parcel
Number
121117000017
Intersection
County
Road
29 and
County
y
Road
34
of
Inquiry
Proposed
Medium
Scale
Solar
Facility
(USR)
Type
The above person met with County Planning staff about developing a parcel of land inside your
designated Intergovernmental Agreement/Coordinated Planning Agreement Boundary. In
accordance with the IGA, found in Chapter 19 of the Weld County Code, the applicant has been
notified of the IGA and the County will not accept an application for development sooner than 21
days from the date they contact you unless this signed form is returned with the box checked
below indicating you do not wish to pursue annexation at this time. You are asked to sign below
to acknowledge that the applicant has contacted you.
Date of Contact with Municipality: G -176 _ �� — � � Cc:jfea��,�
tae are not interested in pursuing annexation with this applicant at this time.
0 We request 21 days from the date of contact to pursue annexation with this applicant.
ejw,
Sign. u - of Municipality Representative Title Date
Weld County Planning Department
1555 N 17th Ave, Greeley, CO 80631 -- (970) 400-6100 -- (970) 304-6498 Fax
Monday, June 29, 2020 at 12:50:39 Mountain Daylight Time
Subject: Notice of Inquiry - SunShare, LLC Community Solar Facility - Vasquez V
Date: Monday, June 29, 2020 at 12 50.18 PM Mountain Daylight Time
From: Richard Miller
To: Pepper McClenahan
CC: Chris Gathman, Robert Hayner, Matt Ricci
Attachments: Milliken NOI Vasquez V pdf
Hi Pepper,
Please see the attached Notice of Inquiry that was provided by the Weld County Planning Department.
SunShare, LLC is proposing a 4 75 MW (Medium -Scale Solar Facility) at the southwest corner of WCR 29 and
WCR 34 Would you please review this proposed project for possible annexation into the Town of Milliken
and let us know your thoughts?
Should you have questions, please feel free to contact me at (303) 809-2128 Thank you for your assistance
with this matter.
Best regards,
Richard
Richard L Miller, AICP
Development Manager for SunShare Community Solar
Page 1 of 1
Notice of Inquiry
Development within an Intergovernmental Agreement
Urban Growth Boundary
Pre -application Case #
PRE20-0094
Date of Inquiry
6/26/2020
Municipality with CPA or IGA
Town of Milliken
Name of Person Inquiring
Richard L Miller
Property Owner
John F Leonard (Heirs of)
Planner
Chris Gathman
Planner Phone Number
970-400-3537
Planner Email Address
cgathman@weldgov corn
Legal Description
NE4 of Section 17, T3N, R66W
Parcel Number
121117000017
Nearest Intersection
County Road 29 and County Road 34
Type of Inquiry
Proposed Medium Scale Solar Facility (USR)
P � )
The above person met with County Planning staff about developing a parcel of land inside your
designated Intergovernmental Agreement/Coordinated Planning Agreement Boundary In
accordance with the IGA, found in Chapter 19 of the Weld County Code, the applicant has been
notified of the IGA and the County will not accept an application for development sooner than 21
days from the date they contact you unless this signed form is returned with the box checked
below indicating you do not wish to pursue annexation at this time. You are asked to sign below
to acknowledge that the applicant has contacted you
Date of Contact with Municipality
❑ We are not interested in pursuing annexation with this applicant at this time
0 We request 21 days from the date of contact to pursue annexation with this applicant
Signature of Municipality Representative Title Date
Weld County Planning Department
1555 N 17th Ave, Greeley, CO 80631 - (970) 400-6100 - (970) 304-6498 Fax
Friday, August 14, 2020 at 09:10:36 Mountain Daylight Time
Subject: RE: Notice of Inquiry - SunShare, LLC Community Solar Facility - Vasquez V
Date: Monday, June 29, 2020 at 12:54:24 PM Mountain Daylight Time
From: Pepper McClenahan
To: Richard Miller
CC: Chris Gathman, Robert Hayner, Matt Ricci
Richard,
This item has been placed on the Milliken Planning Commission agenda for Wednesday, July 1St. Comments
will be sent to the County by the end of the week.
Thank you.
Pepper D. McClenahan, AICP
Community Development Director
Town of Milliken
1101 Broad Street
P.O. Box 290
Milliken, CO 80543
www.millikenco.gov
(970) 660-5046
pmcclenahan@millikenco.gov
From: Richard Miller <rmiller@mysunshare.com>
Sent: Monday, June 29, 2020 12:50 PM
To: Pepper McClenahan <pmcclenahan@millikenco.gov>
Cc: Chris Gathman <cgathman@weldgov.com>; Robert Hayner <rhayner@mysunshare.com>; Matt Ricci
<mricci@mysunshare.com>
@ mysunshare.com>
Subject: Notice of Inquiry - SunShare, LLC Community Solar Facility - Vasquez V
Hi Pepper,
Please see the attached Notice of Inquiry that was provided by the Weld County Planning Department.
SunShare, LLC is proposing a 4.75 MW (Medium -Scale Solar Facility) at the southwest corner of WCR 29 and
WCR 34. Would you please review this proposed project for possible annexation into the Town of Milliken
and let us know your thoughts?
Should you have questions, please feel free to contact me at (303) 809-2128. Thank you for your assistance
with this matter.
Best regards,
Richard
Richard L. Miller, AICP
Development Manager for SunShare Community Solar
Page 1oft
Monday, June 29, 2020 at 13:06:27 Mountain Daylight Time
Subject: Notice of Inquiry - SunShare, LLC Community Solar Facility - Vasquez V
Date: Monday, June 29, 2020 at 102.09 PM Mountain Daylight Time
From: Richard Miller
To: kendrickplanning@gmail coin
CC: Chris Gathman, Robert Hayner, Matt Ricci
Attachments: Platteville NOI Vasquez V pdf
Hi Melissa,
Please see the attached Notice of Inquiry that was provided by the Weld County Planning Department
SunShare, LLC is proposing a 4 75 MW (Medium -Scale Solar Facility) at the southwest corner of WCR 29 and
WCR 34 Would you please review this proposed project for possible annexation into the Town of Platteville
and let us know your thoughts?
Should you have questions, please feel free to contact me at (303) 809-2128 Thank you for your assistance
with this matter
Best regards,
Richard
Richard L Miller, AICP
Development Manager for SunShare Community Solar
Page 1 of 1
Notice of Inquiry
Development within an Intergovernmental Agreement
Urban Growth Boundary
Pre
--application
Case # 1 PRE20-0094
.
.
Date
of
Inquiry
6/26/2020
Municipality
with
CPA
or
1GA
Town of
Platteville
Name
of
Person
Inquiring
Richard
L
Miller
Property
oP
Owner
John
F Leonard (Heirs
of)
Planner
Chris
Gathman
Planner
Phone
Number
970-400-3537
Planner
Email
Address
cgathman@weldgov.com
Legal
Description
NE4
of Section
17, T3N,
R66W
121117000017
Parcel
Number
Nearest
Intersection
County
Road
29 and
County Road
34
Type
of
Inquiry
In
ui
Proposed
Medium
Scale
Solar
Facility
(USR)
person County The above met with Planning staff about developing a parcel of land inside your
Intergovernmental Agreement/Coordinated Planning Agreement Boundary. In
designated g 9 accordance with the 1GA found in Chapter 19 of the Weld County Code, the applicant has been
of the IGA and the County will not accept an application for development sooner than 21
notified P
days from the you date they contact unless this signed form is returned with the box checked
indicating you do not wish to pursue annexation at this time. You are asked to sign below
below
to acknowledge that the applicant has contacted you.
Date of Contact with Municipality:
%We are not interested in pursuing annexation with this applicant at this time.
El We request 21 days from the date of contact to pursue annexation with this applicant.
a Y
0
7t)&t971 E*vvk1r
igrtature of M nicipality Representative Title Date
Weld County Planning Department
1555 N 17 - Ave Gras ey CO 80631 - (970) 400.6100 - (970) 304-6498 Fax
16553 YL'-1 17 i 66 EXC.- urr(R CO ' t UR, WTI it
Year
Tax Charge
Tax Interest
2019 S260.06
I owl I MN i h iqc
Grand Tatal Duc ta of 0412:20211
Tax Btif ct1 at 2.0I9 Itatcs ter In Arca 3131 -3131
Aulhucrty
WELD COUNTY
.SCHOOL . IMMS I RE I
CENTRAL COLCIRA[X) V A 11 R
I Cew
PIATTEV11.1..E4111_0tEST FIRE
AIMS JUNIOR CULLE:t .E
1'161 PLAINS LIBRARY
taxes Billed 2019
• Credit Lev)
Min Lny
1707itKi(itl
1_2860000
72340000
6.1540000
3.2170000
Eta Payments
Balance
$0,65 5x_00 (5265 71) $0.00
AIm,tirtt
$77.90
SIR 44
$6.66
$37 as
X41
516.67
501020000
S26O 0f
Values
SItC'.I't.1RPOSE-
LAND
AG -DRY FARM LAND
SODO
SDI
Actual Assesses!
S21$ 570
$1 T.604 $3,110
Tusal S11JI F2
55.180
ALL TAX LiEN SALE AMOUNTS ARE SUBJECT TO CHANGE DUE TO ENDORSEMENT OF CURRENT TAXES BY THE
t IENHOLDER OR TO ADVERTISING AND DISTRAINT WARRANT FEES
CHANGES MAY OCCUR AND THE TREASURER'S OFFICE WILL NEED TO BE CONTACTED PRIOR TO REMITTANCE AFTER THE
FOLLOWING DATES PERSONAL PROPERTY, REAL PROPERTY AND MOBILE HOMES - AUGUST 1,
TAX LIEN SALE REDEMPTION AMOUNTS MUST BE PAID BY CASH OR CASHIER'S CHECK.
POSTMARKS ARE NOT ACCEP t EU ON TAX LIEN SALE REDEMPTION PAYMENT. PAYMENTS MUST BE IN OUR OFFICE AND
PROCESSED BY THE IASI BUSINESS DAY OF THE MONTH
Weld County Treasurers Office
1400 N 17th Avenue
PO Box 458
Greeley, CO 80632
Phone- 970400-3290
Pursuant to the Weld County Subdivision Ordinance, the attached Statement ofTaxe9 Due
issued by the Weld County Treasurer are evidence that as of this dater all current and prior year
taxes related to this parcel have been paid in full.
cc-i%irt
Signed. ' ; _, i ! ,' L / t , _iltis Date:
Decommissioning Plan
For a Medium -Scale Solar Facility
Vasquez V
In Compliance with:
(Section 23-4-1030 B of the Weld County Code)
Case Number: USR Number To be Determined
Heirs of John F. Leonard (Parcel ID No. 121117000017)
Prepared for:
Weld County Department of Planning Services
1555 North 17th Avenue
Greeley, CO 80631
Prepared by:
SunShare, LLC
Denver, Colorado
'�SunShare
COMMUNITY SOLAR
Date Prepared: July, 2020
i.o Overview
As a condition of approval for the 'Site -Specific Development Plan and Use by Special Review
Permit, Weld County required that SunShare prepare a Decommissioning Plan for the solar
facility, that is to be reviewed and approved by the Weld County Department of Planning
Services. The intent of this Decommissioning Plan is to provide a comprehensive plan for
removal of the solar facility after its useful life and/or the termination of power generation
operations, and to return the subject property to conditions that existed prior to the solar
facility's construction
The solar power generation facility has an estimated useful life of 3o years or more, with an
opportunity for a life of 5o years or more with equipment replacement and repowering At the
end of the useful life of the facility, SunShare will cease power generation, decommission the
facility, and remove the components of the facility from the subject property The site will be
reclaimed and returned to the agricultural use that existed pnorto the facility being constructed
This Decommissioning Plan is subject to refinement should future best practices or alternate
methods be developed by the solar industry, during the life of this facility SunShare will follow
solar industry standards' and best management practices (BMPs) that exist at the time of
decommissioning and reclamation of the site
1.1 Procedures for Decommissioning the Solar Facility
After Useful Life & Termination of Power Generation
The solar facility consists of numerous recyclable materials, including glass, semiconductor
material, steel, aluminum, copper, and plastics When the facility reaches the end of its
operational life, the component parts can be dismantled, and for the most part, salvaged or
recycled at properly licensed facilities
Some site features, such as internal roads, driveways, drainage features/improvements, and
electrical interconnections may remain on the site, depending upon the anticipated future use
of the property All such improvements, that are scheduled to remain after the
decommissioning of the site, will be approved by the Weld County Department of Planning
Services.
Page 3.of5
The following steps will be followed in the decommissioning of the solar facility.
▪ Approximately one year prior to the planned decommissioning of the facility, SunShare
will schedule a pre -closure meeting with the Weld County Department of Planning
Services to discuss the process for the site decommissioning and restoration The final
decommissioning details will be developed through consultation with the Weld County
Department of Planning Services and other departments and agencies that have
jurisdiction over activities in the decommissioning process Any required permits will be
obtained prior to implementation of the Decommissioning Plan
• Appropriate temporary (construction -related) erosion and sedimentation control BMPs
will be applied during the decommissioning phase of the project. The BMPs will be
inspected on a regular basis to ensure proper functionality
• Effectively, the decommissioning of the solar facility proceeds in reverse order of the
installation
1 A site -specific health and safety plan shall be developed, prior to beginning
decommissioning activities, which incorporates the specific sequence and
procedures to be followed
2. Coordination with local departments and agencies to develop route plans and
obtain necessary permits for the transportation of materials and equipment to
and from the site
3 The solar facility shall be disconnected from the utility grid. This process will be
coordinated with Xcel Energy
4 PV modules shall be disconnected, collected and transported to a properly
licensed recycling facility
5 Above ground and underground electrical interconnection and distribution
cabling shall be removed and salvaged or recycled off -site at an approved
recycling facility
6 The aluminum racking that supports the PV modules shall be removed and
salvaged or recycled off -site at an approved recycling facility
7 PV module support steel and support posts shall be removed and salvaged or
recycled off -site at an approved recycling facility
Page 2 of 5
8 Electrical and electronic devices, including transformers, semiconductors
materials, inverters, and batteries, shall be removed and salvaged or recycled off -
site at an approved recycling facility.
9. Concrete foundations shall be removed and will be recycled off -site at an
approved concrete recycling facility
10 Fencing shall be removed and will be recycled off -site at an approved recycling
facility
11 The site will be restored to its original condition, including any necessary
sculpting of soils to match existing natural contours and the re -seeding of native
grasses Any soil that had been re -located for construction purposes will be
redistributed on the site or used for landscaping purposes Soils will be
compacted for those areas where foundations or piers have been removed
1.2 Equipment to be Used for the Decommissioning of
the Solar Facility
The decommissioning of the solar facility will be undertaken using traditional heavy
construction equipment, including front-end loaders, bull dozers, cranes, excavators (track -
mounted and rubber -tired), water tankers, trucks, and pick-ups Semi -trucks will be used to
transport materials to off -site salvage or recycle centers
1.3 Dust Mitigation During the Decommissioning Phase
Water tankers will be used to help control dust while the decommissioning activities are
occurring on the site During the decommissioning of the facility, SunShare will exercise BMPs
to limit fugitive dust from being airborne and traveling beyond the property lines Dust control
efforts will be monitored by the site foreman on a regular basis to ensure fugitive dust is
adequately controlled Water spray will be applied, as needed, to unpaved areas during periods
of dry weather Care will be taken not to over -apply water and create mud Vehicle tracking
devices will be installed at truck exit drives, per the requirements of Weld County Vehicles
operating on the site during the decommissioning phase will limit their speed to 15 mph or less,
to minimize dust emissions
Page 3 of 5
1.4 Financial Assurance to Cover the Decommissioning
of the Solar Facility
The capital investment represented by the solar facility and the long-term contracts to purchase
the electricity generated, will create significant value. The materials used to construct the solar
facility also have significant salvage value The salvage value of the electronics, semiconductor
materials, aluminum, steel, and copper from the decommissioned facility, should cover most or
all of the decommissioning cost In addition, SunShare will establish a decommissioning fund
that will be contributed to on a regular basis, during the production phase of the facility Should
the profits from the salvaged materials be less than the cost to decommission the facility,
SunShare will pay for the balance of the decommissioning cost out of the decommissioning fund
As a result, SunShare is respectfully requesting that financial assurance for the decommissioning
of the solar facility be waived.
1.5 Signatures
Prepared by.
Richard L Miller, AICP
Development Manager
Approved by
Robert Hayner
Senior Vice President of Construction & Development
Page 4 of 5
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USE BY SPECIAL REVIEW USRIOW000X
4.750 MW -AC (4.999 MW -DC) SOLAR ARRAY PROJECT
7
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
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NOTES
1. SIZE DOES NOT UTILIZE LIGHTING EXISTING OR
PROPOSED
1 SITE IS FEMA ZONE X (NO SPECIAL FLOOD HAZARD
ARIAS) ACCORDING TO MAP 0811K 1710E IF FICTIVE
01/20/2016
I THERE ARE NO KNOWN AREAS OF MODERATE OR
SEVERE SOK LIMITATIONS
4 NO STORMWAIER DETENTION IS REQUIRED THE
PROJECT IS LOCATED IN A NON- URBANIZING AREA
AND THE PROPOSED DISCHARGE KATE IS LESS IHAN
111E 10(15 IHRESNOLD
S THIS SITE IS NOT IN A KNOWN GEOLOGIC HAZARD
MIA
6 THERE ARE NO EXISTING SIRUCTURESON THE PROJECT
SITE EXCEPT WHERE NOTED
7 NO AAt11ttNG SUODNISIOMS OR ADJACENT
MUNICIPAL' IY
8 11115 MAP WAS PREPARED IN ACCORDANCE WITH
SECTION 13 1 260 D Of IMF WILD COUNTY CODE
LEGEND
ETOStING /RO/ERry LINE
SE ;ICON LIME
PARCEL LICE
DOST►NG RN° LAE
Con TING MAJOR CONTOUR
L7ISRP.IG MINOR CONTOUR
OM TING PAVED ROAD
OOshNGn1AV t.MOAO
COSTING LAWMENT
COSTING SW CX WAv
OCHRE PO bG4T 01 WAY
.••• M..,
-- -
Nam •Ia
HIS THtVw unuTv POLE
OH TING OVU*4LAD SOWER
OWING HIM OPTIC t l/0
t*slsMi V&DENCACt••1C utluTv
170 STING GAS UNE
St TRAO1 LwE
FROPOSEn SK1.AeTV HENCE
PROPOSED LIAW AREA ONE
moo= UD CLEARANCE LETMOL
AP•ROTOAEATE LCJC:A 104 of
PROPOSED 50LAA AMIAV
PROPOSED ACCESS ROAD
PROPOSED iAYUCTNM YARD
URNNAGE *LOIN ARROW
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Va
squez V Solar
Weld County, Colorado
SRC #080108
Site Plan
NOT FOR CONSTRUCTION
Vatic •
7/08/2020
C.100
STORMWATER MEMO FOR THE
Vasquez V Small Scale
Solar Facility [usRxx-,00on
County of Weld, Colorado
NOVEMBER 2020
PREPARED FOR:
Jty4
SunShare
PREPARED BY:
Westwood
Stormwater Memo I Vasquez V November 2, 2020
Stormwater Memo
Vasquez V Small Scale Solar Facility
Weld County, Colorado
Prepared For:
SunShare, LLC
1151 Bannock Street
Denver, Colorado 80204
County Case Number USR XX-XXXX
Project Number: Roo22o49.04
Date: November 2nd, 2020
Prepared By:
Westwood
12701 Whitewater Drive, Suite 300
Minnetonka, MN 55343
(952) 937-5150
11 I Confidential and Proprietary. TBPLS Firm #10074302
Stormwater Memo I Vasquez V November 2, 2020
Table of Contents
Project Site 2
General Description of Project •••••• 2
Dra•
inage Design.................................................................................................... 2
Drainage Improvements 2
AdjacentAreas....................................................................................................... 3
OnsiteSoils............................................................................................................ 3
Timing/Phasing Schedule...................................................................................... 3
BMP Installation, Inspection, and Removal
3
PermanentStabilization........................................................................................ 3
Summary............................................................................................................... 3
ReferencesCited.....................................................................................................5
Attachments
Attachment is Vasquez V Small Scale Solar Facility Site Plan
Attachment 2: USDA Web Soil Survey Map
1 I Confidential and Proprietary. TBPLS Firm #10074302
Stormwater Memo I Vasquez V November 2, 2020
Project Site
This Drainage Report has been prepared on behalf of SunShare, LLC for the proposed
construction of the Vasquez V Small Scale Solar Facility in Weld County, Colorado hereinafter
referred to as the project.
The proposed development is located in the NE1/4 Quarter of Section 17, Township 3 North,
and Range 66 West of the 6th Prime Meridian. More specifically the Project site is
approximately 27.2 acres of land and is located approximately 1.4 miles northeast of Platteville
and approximately o.3 miles west of the Weld County Road (WCR) 29 and 34 intersection, State
of Colorado. The site is covered intermittently with agricultural row crops depending on time of
year. The ground surface slopes to the north at an average slope of approximately 0.20%. The
site is within a FEMA Zone X, which is an area of minimal flood hazard. The site is therefore not
within a loo -year flood plain.
General Description of Project
It is proposed to develop approximately 27.2 acres of land for the project of an approximate
5MW solar array. The solar array will deliver renewable energy to Xcel Energy under a 20 -year
power purchase agreement (PPA). The facility is designed for un-manned operation except for
bi-annual maintenance. Therefore, this facility will not represent any significant traffic impact to
the surrounding county roads.
Upon termination of the PPA, the improvements will be removed and the land will be restored
to historic conditions.
Drainage Design
The area under and around the solar panels will be planted with low -maintenance grass seed
mix. Very little additional impervious surface will be added to the site. The only new impervious
surface is the gravel access road (32,278 ft^2) 2) and concrete inverter pads, which are 610 square
feet, per Weld County solar panels are not considered impervious on A or B soils. Given this and
based on conversations with County reviewers, the site will need not need a detention pond per
Weld County requirements due to the minimal onsite addition of impervious and the access
road being disconnected impervious surface. In Proposed Conditions runoff will continue to
sheet flow to the northwest as it does in existing conditions. Historically stormwater runs
northwest and then continues northwest. When the site is fully vegetated after construction,
stormwater will flow off the solar panels, onto the ground, and run through the grass. The onsite
soils, which are all categorized as hydrologic soil group A (Attachment 2), are conducive to
infiltration. This soil type was also categorized as an open sandy loam. The fully vegetated site
will slow runoff and encourage infiltration.
Drainage Improvements
There are no proposed drainage improvements on site. All existing flowpaths will be
maintained and perennial vegetation will be planted onsite that will decrease runoff and
encourage infiltration.
2 I Confidential and Proprietary. TBPLS Firm #10074302
Stormwater Memo I Vasquez V November 2, 2020
Adjacent Areas
No channels flow through or adjacent to the project area. Minor runoff from the southern and
eastern portions of the parcel sheet flows onto the project site and continues northwest. This
water will pass through the basin.
Onsite Soils
The soils for this project site are classified as hydrologic soil group B (Attachment 4). The soil
types found in the project site area are Olney sandy loam, 1 to 3 percent slopes. This soil
information is based on the Natural Resources Conservation Service (NRCS) National
Cooperative Soil Survey. The proposed vegetated conditions will slow run off and encourage
infiltration.
Timing/Phasing Schedule
In the initial and interim stages, the contractor shall install silt fence, vehicle traction control
and concrete washout at the entrance, and a stabilized staging area. In the final stage of
construction, seeding and mulching and surface roughing shall be done in all disturbed areas,
and erosion control blankets shall be installed on all slopes greater than 4:1. The contractor
shall also remove the vehicle traction control, concrete washout, stabilized staging area, erosion
control blanket, and silt fence in the final stage of construction.
BMP Installation, Inspection, and Removal
BMPs will be installed prior to project construction, with the exception of the BMPs in the final
stage. BMPs will be inspected weekly and as required by the County through project completion
by the contractor. BMPs will be maintained and remain in place at least until construction is
finished and the site is vegetated. Once all exposed areas have been covered, the BMPs may be
removed. Since the project does not include any other disturbance, no additional site
stabilization is necessary and/or warranted.
Permanent Stabilization
The project will be seeded with the Weld County's upland rea seed mix to establish permanent
stabilization after construction activity has ceased. Reference the table on sheet 13-66 of
Appendix A in the USDCM Manual, Volume 2, Chapter 13. As per the USDCM Manual,
permanent seeding involves the loosening of soil, applying topsoil, drill seeding the disturbed
areas to a depth not less than 1/4 inch and not more than 3/4 inch, and crimping the seeded areas
in straw mulch at a rate of 2 tons per acre to provide immediate erosion protection.
Summary
The proposed site will be designed to maintain its existing drainage patterns. Due to the limited
amount of impervious surface proposed and the proposed conversion of the site from row crops
to the vegetated cover under the panels a decrease in runoff rates is expected for the proposed
conditions when compared to existing conditions. Water quality will be provided by the
disconnected impervious and the proposed vegetation below the panels.
3 I Confidential and Proprietary. TBPLS Firm #10074302
Stormwater Memo I Vasquez V November 2 . 2020
Based on the landcover conversion and the addition of the detention pond the site design will
adequately protect public health, safety, and general welfare and will have no adverse impacts
on public right-of-way or offsite properties.
4 I Confidential and Proprietary. TBPLS Firm #10074302
Stormwater Memo I Vasquez V November 2, 2020
References Cited
National Engineering Handbook, Part 630 Hydrology. Chapter 9 Hydrologic Soil -Cover
Complexes. USDA. NRCS. 210-VI-NEH, July 2004
Web soil survey. Retrieved July 2020, from
https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx
NOAA, & Service, N. W. AHPS Precipitation analysis. Retrieved July 2020, from
http://water.weather.gov/precip/download.php
USGS. USGS water resources: About USGS water resources. Retrieved March 2020, from
https://water.usgs.gov/GIS/huc.html
FEMA Flood Insurance Rate Maps, retrieved July 2020 from
https://msc.fema.gov/portal/advanceSearch#searchresultsanchor
5 I Confidential and Proprietary. TBPLS Firm #10074302
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USE BY SPECIAL REVIEW USRXX-XXXX
4.000 MW -AC (4.826 MW -DC) SOLAR ARRAY PROJECT
7
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
la'
EXISTING STRUCTURE ITYP.) 1
OWNER
1 I INVESTMENTS LTD Lap
RECEIPTION 488O56699
125' BUFFER FROM RESIDENCE
FUTURE 80' ROW
WCR 31 (60' R O. WI
VIII
PROPERTY LINE
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DCP MIDSTREAM LP
RECEIPTION 481199396
PROPOSED ACCESS POINT
COUNTY ROAD 34
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IIIIIIIIIIIIII
PROPOSED FENCE LINE
11111111
EATSTINt, WILL APPEDANDABANDONED
25 WELL BUFFER
\\ IIIIIIIIIIIIIIII
OWNER:
KAY KUGEL SACHS.GARY P KUGEL TRUST BRYAN KUGEL.
TRUSTEE OF THE BRYAN KUGEL LIVING TRUST. PAULA R
CARR REVOCABLE LIVING TRUST. TROY SKOGMO.
CYNTH A l WALTERS REVOCABLE LIVING TRUST
gs IIi EIPT1O N 62995266
25 WELL BUFFER
EXISTING WELL CAPPED AND ABANDONED
PROPOSED uSR BOUNDARY
EXISTING IRRIGATION PIVOT
IRRIGATION PIVOT RADIUS 12778'
OWNER
COLORADO STATE
RKEIPTION 4114856286
LEGEND
PROPOSED USR BOUNDARY
EXISTING PROPERTY LINE
SECTION LINE
PARCEL LINE
EXISTING FENCE LINE
EXISTING MAJOR CONTOUR
EXISTING MINOR CONTOUR
EXISTING PAVED ROAD
11.2Z�.'. :2,7 , -' EXISTING GRAVEL ROAD
EXISTING EASEMENT
UOSTING RIGHT Of WAY
FUTURE 80' RIGHT OF WAY
b EXISTING UTILITY POLE
4Ol EXISTING OVERHEAD POWER
IC
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EXISTING UNDERGROUND UTILITY
EXISTING GAS LINE
SETBACK LINE
PROPOSED SECURITY FENCE
PROPOSED CLEARANCE SETBACK
APPROXIMATE LOCATION Of
PROPOSED SOLAR ARRAY
PROPOSED ACCESS ROAD
WELD COUNTY CASE NUMBER USR19 0054 (DEPARTMENT OF PLANNING SERVICES)
7
4
5
1111111
1441
!0
4/
100 .00
BOARD OF COUNTY COMMISSIONERS CERTIFICATION
THIS IS TO CERTIFY THAT THE BOARD OF COUNTY COMMISSIONERS WELD COUNTY.
COLORADO. DOES HEREBY AND CONFIRM AND ADOPT THIS SITE SPECIFIC DEVELOPMENT
PLAN AND USE BY SPECIAL REVIEW AND DEVELOPMENT STANDARDS AS SHOWN AND
DESCRIBED HEREON THIS DAY Of 20
CHAIR. BOARD OF COUNTY COMMISSIONERS
ATTEST
WELD COUNTY CLERK TO THE BOARD
BY DATED
DEPUTY CLERK TO THE BOARD
SOILS MAP
N.t i
MPORT DATA FROM U.SD.A NATURAL RESOURCES
CONSERVATION SERVICE WELD CO. COLORADO. SOUTHERN PART
NUMBER
SOIL TYPES
44
45
47
OLNEY LOAMY SAND
OLNEY LOAMY SAND
OLNEY FINE SANDY LOAM
72
VONA LOAMY SAND
8
0
Call 48 Hours before digging
811 or IDIG811.com
caorado 811
MILE RAOIU
PARCEL
1320
PARENT
RADIO
PARCEL
COUNTY
y
PARENT
ROAD 34
r
0
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VICINITY MAP
I' . 1000'
0
'000
200C ICCC
RESIDENCES WITHIN 1320'FT OF SITE RESIDENCES WITHIN 1/2 MILE OF SITE
ACCESS ACCESS
785 E OF SITE ENTRANCE 13494 COUNTY ROAD 34 0 52 MILES NW OF ACCESS
WELD. CO 80651
APPROXIMATE LOCATION(
048 MILES S OF ACCESS
0 51 MILES S OF ACCESS
PLANNING COMMISSION CERTIFICATION
THIS IS TO CERTIFY THAT THE WELD COUNTY PLANNING COMMISSION HAS CERTIFIED
AND DOES HEREBY RECOMMEND TO THE BOARD OF COUNTY COMMISSIONERSM WELD
COUNTY COLORADO. FOR ITS CONFIRMATION, APPROVAL AND ADOPTION THIS SITE
SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW AS SHOWN AND DESCRIBED
HEREON
THIS DAY OF 20
CHAIR. WELD COUNTY PLANNING COMMISSION
L
PROPERTY OWNERS CERTIFICATION
I. KAY KUGEL SACHS.GARY P KUGEL TRUST. BRYAN KUGEL. TRUSTEE Of THE BRYAN KUGEL
LING TRUST. PAULA R CARR REVOCABLE LMNG TRUST. TROY SKOGMO. CYNTHIA L
WALTERS REVOCABLE LIVING TRUST DO HEREBY AGREE TO THE SITE SPECIFIC
DEVELOPMENT PLAN AND USE BY SPECIAL STANDARDS REVIEW AS DESCRIBED HEREON
THIS DAY OF 20
SIGNATURE
SIGNATURE
SIGNATURE
SIGNATURE
SIGNATURE
SIGNATURE
KAY KUGEL SACHS
PRINTED NAME
GARY P. KUGEL
PRINTED NAME
BRYAN KUGEL
PRINTED NAME
PAULA R. CARR
PRINTED NAME
TROY SKOGMO
PRINTED NAME
CYNTHIA L WALTERS
PRINTED NAME
16312 COUNTY ROAD 29
WELD. CO 80651
(APPROXIMATE LOCATION)
21510 COUNTY RD 31
WELD, CO 80651
(APPROXIMATE LOCATION(
13106 COUNTY ROAD 34 WELD
WELD. CO 80651
(APPROXIMATE LOCATION.
Sheet List Table
Sheet Number
Sheet Title
T.100
Cover
E.100
Development Standards
C 100
Site Plan
C.101
Section Plan
C 102
Seeding and Landscaping Plan
1101
Signs
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Vasquez V Solar
Weld County, Colorado
SRC #080108
Cover
NOT FOR CONSTRUCTION
10/28/2020
T.100
2
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B
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D
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WELD COUNTY CASE NUMBER USR19 0054 (DEPARTMENT OF PLANNING SERVICES)
3
4
6
7
USE BY SPECIAL REVIEW USRXX-XXXX
4.000 MW -AC (4.826 MW -DC) SOLAR ARRAY PROJECT
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
WELD COUNTY RIGHT TO FARM STATEMENT
WELD COUNTY IS ONE OF THE MOST PRODUCTIVE AGRICULTURAL COUNTIES IN THE UNITED STATES. TYPICALLY RANKING IN
THE TOP TEN COUNTIES IN THE COUNTRY IN TOTAL MARKET VALUE OF AGRICULTURAL PRODUCTS SOLD, THE RURAL AREAS
OF WELD COUNTY MAY BE OPEN AND SPACIOUS. BUT THEY ARE INTENSIVELY USED FOR AGRICULTURE PERSONS MOVING
INTO A RURAL AREA MUST RECOGNIZE AND ACCEPT THERE ARE DRAWBACKS, INCLUDING CONFLICTS WITH LONG-STANDING
AGRICULTURAL PRACTICES AND A LOWER LEVEL OF SERVICES THAN IN TOWN ALONG WITH THE DRAWBACKS COME THE
INCENTIVES WHICH ATTRACT URBAN DWELLERS TO RELOCATE TO RURAL AREAS OPEN VIEWS. SPACIOUSNESS, WILDLIFE.
LACK OF CITY NOISE AND CONGESTION, AND THE RURAL ATMOSPHERE AND WAY OF LIFE. WITHOUT NEIGHBORING FARMS.
THOSE FEATURES WHICH ATTRACT URBAN DWELLERS TO RURAL WELD COUNTY WOULD QUICKLY BE GONE FOREVER
AGRICULTURAL USERS OF THE LAND SHOULD NOT BE EXPECTED TO CHANCE THEIR LONG-ESTABLISHED AGRICULTURAL
PRACTICES TO ACCOMMODATE THE INTRUSIONS OF URBAN USERS INTO A RURAL AREA WELL -RUN AGRICULTURAL ACTIVITIES
WILL GENERATE OFF -SITE IMPACTS. INCLUDING NOISE FROM TRACTORS AND EQUIPMENT. SLOW -MOVING FARM VEHICLES ON
RURAL ROADS, DUST FROM ANIMAL PENS, FIELD WORK, HARVEST AND GRAVEL ROADS, ODOR FROM ANIMAL CONFINEMENT,
SILAGE AND MANURE. SMOKE FROM DITCH BURNING. FLIES AND MOSQUITOES. HUNTING AND TRAPPING ACTIVITIES: SHOOTING
SPORTS, LEGAL HAZING OF NUISANCE WILDLIFE, AND THE USE OF PESTICIDES AND FERTILIZERS IN THE. FIELDS, INCLUDING
THE USE OF AERIAL SPRAYING IT IS COMMON PRACTICE FOR AGRICULTURAL PRODUCERS TO UTILIZE AN ACCUMULATION OF
AGRICULTURAL MACHINERY AND SUPPLIES TO ASSIST IN THEIR AGRICULTURAL OPERATIONS A CONCENTRATION OF
MISCELLANEOUS AGRICULTURAL MATERIALS OFTEN PRODUCES A VISUAL DISPARITY BETWEEN RURAL AND URBAN AREAS OF
THE COUNTY SECTION 35-3.5-102, C.R.S., PROVIDES THAT AN AGRICULTURAL OPERATION SHALL NOT BE FOUND TO BE A
PUBLIC OR PRIVATE NUISANCE IF THE AGRICULTURAL OPERATION ALLEGED TO BE A NUISANCE EMPLOYS METHODS OR
PRACTICES THAT ARE COMMONLY OR REASONABLY ASSOCIATED WITH AGRICULTURAL PRODUCTION
WATER HAS BEEN, AND CONTINUES TO BE, THE LIFELINE FOR THE AGRICULTURAL COMMUNITY IT IS UNREALISTIC TO ASSUME
THAT DITCHES AND RESERVOIRS MAY SIMPLY BE MOVED "OUT OF THE WAY" OF RESIDENTIAL DEVELOPMENT. WHEN MOVING
TO THE COUNTY, PROPERTY OWNERS AND RESIDENTS MUST REALIZE THEY CANNOT TAKE WATER FROM IRRIGATION DITCHES,
LAKES OR OTHER STRUCTURES, UNLESS THEY HAVE AN ADJUDICATED RIGHT TO THE WATER
WELD COUNTY COVERS A LAND AREA OF APPROXIMATELY FOUR THOUSAND (4,000) SQUARE MILES IN SIZE (TWICE THE SIZE
OF THE STATE OF DELAWARE) WITH MORE THAN THREE THOUSAND SEVEN HUNDRED (3,700) MILES OF STATE AND COUNTY
ROADS OUTSIDE OF MUNICIPALITIES THE SHEER MAGNITUDE OF THE AREA TO BE SERVED STRETCHES AVAILABLE
RESOURCES. LAW ENFORCEMENT IS BASED ON RESPONSES TO COMPLAINTS MORE THAN ON PATROLS OF THE COUNTY, AND
THE DISTANCES WHICH MUST BE TRAVELED MAY DELAY ALL EMERGENCY RESPONSES. INCLUDING LAW ENFORCEMENT,
AMBULANCE AND FIRE. FIRE PROTECTION IS USUALLY PROVIDED BY VOLUNTEERS WHO MUST LEAVE THEIR JOBS AND
FAMILIES TO RESPOND TO EMERGENCIES. COUNTY GRAVEL ROADS, NO MATTER HOW OFTEN THEY ARE BLADED, WILL NOT
PROVIDE THE SAME KIND OF SURFACE EXPECTED FROM A PAVED ROAD. SNOW REMOVAL PRIORITIES MEAN THAT ROADS
FROM SUBDIVISIONS TO ARTERIALS MAY NOT BE CLEARED FOR SEVERAL DAYS AFTER A MAJOR SNOWSTORM. SERVICES IN
RURAL AREAS, IN MANY CASES, WILL NOT BE EQUIVALENT TO MUNICIPAL SERVICES. RURAL DWELLERS MUST, BY NECESSITY.
BE MORE SELF-SUFFICIENT THAN URBAN DWELLERS
PEOPLE ARE EXPOSED TO DIFFERENT HAZARDS IN THE COUNTY THAN IN AN URBAN OR SUBURBAN SETTING FARM
EQUIPMENT AND OIL FIELD EQUIPMENT, PONDS AND IRRIGATION DITCHES, ELECTRICAL POWER FOR PUMPS AND CENTER PIVOT
OPERATIONS, HIGH-SPEED TRAFFIC, SAND BURS, PUNCTURE VINES, TERRITORIAL FARM DOGS AND LIVESTOCK AND OPEN
BURNING PRESENT REAL THREATS. CONTROLLING CHILDREN'S ACTIVITIES IS IMPORTANT, NOT ONLY FOR THEIR SAFETY. BUT
ALSO FOR THE PROTECTION OF THE FARMER'S LIVELIHOOD
(WELD COUNTY CODE ORDINANCE 2002-6; WELD COUNTY CODE ORDINANCE 2008-13)
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SRC #080108
Development
Standards
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SHIP
10/28/2020
E.100
3
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FUTURE 80' COUNTY RD 34
RIGHT OF WAY LINE
EXISTING 60 COUNTY RD 34
RIGHT OF WAY LINE
PROPERTY LINE -J
125.0
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A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
VASQUEZ V SITE SIGN
EXISTING GRAVEL ROAD
.o
A**---- 125' SETBACK FROM PROPOSED TRACKING
- , RESIDENCE LINE , _ CONTROL SEE DETAIL GODS
ACCESS GATE
TEMPORARY STABILIZED STAGING AREA
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EXISTING IRRIGATION PIVOT
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NOTES
9
Call 48 Hours oefore o,ggiri
811 or IDIG811.cor
Colorado 811
SITE DOES NOT UTILIZE LIGHTING EXISTING OR
PROPOSED.
2 SITE IS FEMA ZONE X (NO SPECIAL FLOOD HAZARD
AREAS) ACCORDING TO MAP 08123C1710E EFFECTIVE
01/20/2016.
3 THERE ARE NO KNOWN AREAS OF MODERATE OR
SEVERE SOIL LIMITATIONS
4 NO STORMWATER DETENTION IS REQUIRED THE
PROJECT IS LOCATED IN A NON -URBANIZING AREA
AND THE PROPOSED DISCHARGE RATE IS LESS THAN
THE 10CFS THRESHOLD
S. THIS SITE IS NOT IN A KNOWN GEOLOGIC HAZARD
AREA.
6, THERE ARE NO EXISTING STRUCTURES ON THE PROJECT
SITE EXCEPT WHERE NOTED
7 NO ABUTTING SUBDIVISIONS OR ADJACENT
MUNICIPALITY
8. THIS MAP WAS PREPARED IN ACCORDANCE WITH
SECTION 23-2-260 D OF THE WELD COUNTY CODE
LEGEND
A
I
I
Way" itinienX•74
imp
PROPOSED USR BOUNDARY
EXISTING PROPERTY LINE
SECTION UNE
PARCEL LINE
EXISTING FENCE LINE
EXISTING MAJOR CONTOUR
EXISTING MINOR CONTOUR
EXISTING PAVED ROAD
EXISTING GRAVEL ROAD
EXISTING EASEMENT
EXISTRVG RIGHT OF WAY
FUTURE 80' RIGHT OF WAY
EXISTING UTILITY POLE
EXISTING OVERHEAD POWER
EXISTING FIBER OPTIC LINE
EXISTING UNDERGROUND UTILITY
EXISTING GAS LINE
SETBACK LINE
PROPOSED SECURITY FENCE
PROPOSED CLEARANCE SETBACK
APPROXIMATE LOCATION OF
PROPOSED SOLAR ARRAY
PROPOSED ACCESS ROAD
PROPOSED LAYDOWN YARD
DRAINAGE FLOW ARROW
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Site Plan
NOT FOR CONSTRUCTION
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C.100
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7
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
8
FUTURE 80' COUNTY RD 34
RIGHT OF WAY LINE
EXISTING 60' COUNTY RD 34
RIGHT OF WAY LINE
125' SETBACK FROM
RESIDENCE LINE
T T I
EXISTING STRUCTURE (TYP )
PROPERTY UNE J
VASQUEZ V SITE SIGN
EXISTING GRAVEL ROAD
1
ACCESS GATE
II 1 111HICLE/ PROPOS !
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CONTROL SEE DE TAIL GDOS
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PRIMARY METERING CABINET
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PROPOSED 8'X40' STEEL CONTAINER FOR
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EXISTING IRRIGATION PIVOT
IRRIGATION PIVOT RADIUS 12778'
WELD COUNTY CASE NUMBER USR19•00S4 (DEPARTMENT OF PLANNING SERVICES)
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NOTES
9
C si 48 Hours Detore digger
811 or iDIG811.co
Cdo.acto 811
SITE DOES NOT UTILIZE LIGHTING EXISTING OR
PROPOSED.
2 SITE IS FEMA ZONE X (NO SPECIAL FLOOD HAZARD
AREAS) ACCORDING TO MAP08123C1710E EFFECTIVE
01/20/2016.
3. THERE ARE NO KNOWN AREAS OF MODERATE OR
SEVERE SOIL LIMITATIONS.
4 NO STORMWATER DETENTION IS REQUIRED THE
PROJECT IS LOCATED IN A NON -URBANIZING AREA
AND THE PROPOSED DISCHARGE RATE IS LESS THAN
THE 10CFS THRESHOLD
5 THIS SITE IS NOT IN A KNOWN GEOLOGIC HAZARD
AREA
6 THERE ARE NO EXISTING STRUCTURES ON THE PROJECT
SITE EXCEPT WHERE NOTED
7 NO ABUTTING SUBDIVISIONS OR ADJACENT
MUNICIPALITY
LEGEND
•
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PROPOSED USR BOUNDARY
EXISTING PROPERTY LINE
SECTION LINE
EXISTING FENCE LINE
PARCEL LINE
EXISTING MANOR CONTOUR
EXISTING MINOR CONTOUR
EXISTING PAVED ROAD
EXISTING GRAVEL ROAD
EXISTING EASEMENT
EXISTING RIGHT Of WAY
FUTURE 8O' RIGHT OF WAY
EXISTING UTILITY POLE
EXISTING OVERHEAD POWER
EXISTING UNDERGROUND UTILITY
EXISTING POWER UNDERGROUND
EXISTING GAS LINE
SETBACK LINE
PROPOSED SECURITY FENCE
PROPOSED CLEARANCE SETBACK
APPROXIMATE LOCATION Of
PROPOSED SOLAR ARRAY
PROPOSED ACCESS ROAD
PROPOSED LAYDOWN YARD
DRAINAGE ROW ARROW
es.
4804„,
44,
40' RADIUS (TYP.)
MIRAFI HP270 GEOTEXTILE OR
APPROVED EQUAL (AS NEEDED)
6" MINIMUM DEPTH
1' 3' WASHED ROCK
NOTES.
ROCK CONSTRUCTION ENTRANCE SHOULD BE A MINIMUM THICKNESS Of 6' AND
CONTAIN MAXIMUM SIDE SLOPES Of 4.1 ROCK ENTRANCE SHOULD BE INSPECTED
AND MAINTAINED REGULARLY ROCK ENTRANCE LENGTH MAY NEED TO 81
EXTENDED IN CLAY SOILS
ROCK CONSTRUCTION ENTRANCE
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poll
1 DIMENSIONS MAY VARY BASED ON MODULE SELECTED $
VARIES PER MODULE SELECTED
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SRC #080108
L
Section Plan
NOT FOR CONSTRUCTION
DATA 10/28/2020
SHUT
C.101
B
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D
E
F
L
2 3
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4
USE BY SPECIAL REVIEW USRXX-XXXX
4.000 MW -AC (4.826 MW -DC) SOLAR ARRAY PROJECT
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
COUNTY ROAD 34
PROPOSED SCREENING
ELEVATION = 4881.36
PO.
11111
PROPOSED SCREENING
ELEVATION = 4885.28
II
i
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ELEVATON=46914S
III
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SIZE
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NOTE QUANTITIES ON PLAN SUPERSEDE LIST QUANTITIES
Planting Details
5' HT BB
8' -Oa O C TYP 20- 3 -
IN THE EVENT OF A DISCREPANCY
PRUNE Out WISDIREC TED
BRANCHES PROMO( ONE
CENTRAL LEADER
GIYING AND STAKING AS REOUNED.
FOR ONE (I) YEAR ON ALL
DECIDUOUS AND CONIFEROUS TREES
TOP SLAKES S' ABOVE GROUND
(MA[ ) OR TD FIRST BRANCH
BOTTOM Of STAKE 3 PAW)
BELOW GROUND STAKING
POSTS 10 BE 2"X2' SIAINED
COO OR PAINTED STEEL
DELINEATOR POSTS PLACE 3
POSTS EOuIDtSTAN1 AROUND
ANO OUTSIDE ROOT BALL
SECuRE TREE TO POSTS Ruin
IC LONG POLYPROPYLENE OR
POLYETHYLENE, 40 MR , 1 5'
WOE STRAP
PLACE MULCH, DEPTH AS
SPECIFIED. OVER PLANT PITS -
Do Not PILE AGAINST TRUNK
FORM 3' DEEP WATERING BASIN
BACKFKL PLANT PIT WTH
SPECIr(D BADIFKL SOIL
SCARJY SONS AND BOTTOM 01
HOLE
REFER TO AMERICAN STANDARD
FOR NURSERY STOCk roll
MINWUM BALL 41t ROOT
FLARE 10 BC PLANTED AI OR
NEAR FIN19tD CFO/NOUN(
SET ROOT BALL ON uNOISTUREIED
SuBSOK OR COMPACTED SOL
MOUND MATCHING TREES NATURAL
GROUNDLINE Ruln FINI D STE
GRADE N S
EVERGREEN TREE
PLAN TING
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1 FENCING SUPPLIER SHALL PROVIDE FINAL AND SEALED FENCING DRAWINGS WITH MATERIAL AND
SPECIFICATION REQUIREMENTS
2 A KNOX PAD LOCK WILL BE PLACED ON CHAINED GATE OR KNOX BOX WITH GATE ACCESS KEYS WILL
81 MOUNIEDAI THE MAIN ENTRANCE FOR 11RE DEPARTMENT ACCESS
VLHICLL GAIL Ut IAIt
ran WWI"
•
LEGEND:
9
Call 48 Hours before Quggi u
811 or iDIG811.cor
Colorado 811
AREA TO BE RESEEDED IF/WHEN DISTURBED (27.11AC1
• SCREENING TO BE PLANTED SEE DETAIL LA28
PROPOSED USR BOUNDARY
NOTE A LOW GROW NATIVE SEED MIX SUCH AS' P851 LOW GROW
MIX' OR EQUIVALENT SHALL BE USED FOR RESEEDING
NOTES:
2
Buffer Plantin0 Materials3
Rocky Mountain Juniper
a -
THIS DEVELOPMENT IS BEING CONSTRUCTED IN A RURAL PAR'
OE WELD COUNTY NEAR LA SALLE COLORADO THE SITE IS
LOCATED ON THE SOUTH SIDE OF WCR 46 CAST DF WCR 31
THE SURROUNDING LAND IS PRIMARILY BEING USED FOR
AGRICULTURAL, RANCHING, AND OIL/GAS PURPOSES, WITH THI
FOLLOWING USES IN THE IMMEDIATE AREA OF THE SUBJECT
PROPERTY TO THE NORTHEAST IS AN OIL/GAS OUTDOOR
STORAGE LOT. TO THE NORTH IS THE XCEL SUBSTATION AND AN
OIL/GAS TANK BATTERY. TO THE NORTHWEST IS A 466 ACRE
FEEDLOT OPERATION, TO THE WEST IS A FARM FIELD WITH AN
OIL /GAS TANK BATTERY. TO THE SOUTH rS AN OPEN FARM
FIELD. ANO THE LAND TO THE EAST IS 75 ACRES. ALSO OWNED
BY WESTERN EQUIPMENT TRUCKING
THIS DEVELOPMENT WILL BE CONSTRUCTED IN MULTIPLE PHASES
ON LEASED LAND.
FOLLOWING THE START OF CONSTRUCTION FOR EACH PHASE.
DISTURBED AREAS WITHIN THE LIMITS or CONSTRUCTION. SUCH
AS ROADCUTS, UTILITY TRENCHES. WASTEWATER DISPOSAL
FIELDS. BUILDING SITES. AND OTHER AREAS WHERE VEGETATION
HAS BEEN REMOVED. AL TERED, OR ELIMINATED. WILL BE
REVECETATED MATH NATIVE GRASS
4 OTHER AREAS WHERE EXISTING VEGETATION HAS NOT REGROWN
WILL BE RESEEDED
3 SCREENING SHALL REMAIN HEAL THY AND MAINTAINED TO
CONTINUE TO PROVIDE VEGETATIVE GROUND COVER NOXIOUS
WEEDS WILL BE CONTROLLED ON THE SUBJECT PROPERTY (Ste
µSO THE VEGETATION MANAGEMENT PLAN)
FOR SECURITY AND PROTECTION or THE PUBLIC AND WILOUF(.
ME PROPOSED SOLAR FACILITY WILL BE FENCED WTIi A
WILDLIFE FRIENDLY OFENCE THE SELECTED FENCE
WILL BLEND WITH THE NATURAL ENVIRONMENT AND WILL
PREVENT WILOUFE FROM
DECENTERING RATIVE THE SITE CAUSING DAMAGE
AND THEREFORE PROVIDING SE CURRY OF THE IMPROVEMENTS
5 REFER TO FENCE DETAIL FNOIB
6 FENCING SHALL BE MAINTAINED AS NEEDED TO PROVIDE THE
INTENDED SCREENING AND SECURITY OF THE PROPOSED
IMPROVEMENTS
7 SCREENING DELINEATED WITH SECTION 23-4-1030C OF WELD
COUNTY CODE
8 CONTRACTOR SHALL CONTACT 'COLORADO ONE- (611 or 1-800-922-1957) TO VEIN Y LOCATIONS OF ALL
UNDERGROUND UTILITIES PRIOR 10 INSTALLATION OF ANY PLANTS OR SCREENING MATERIAL
9 ACTUAL LOCATION or PLANT MATERIAL IS SUBJECT TO FIELD AND SITE CONDITIONS
to
II
NO PLANTING WILL BE INSTALLED UNTIL ALL GRADING AND CONSTRUCTION HAS BEEN COUPLE TED IN THE
IMMEDIATE AREA
µL SUBSTITUTIONS MUST BE MADE WITH PRIOR APPROVAL
12 CONTRACTOR SHALL PROVIDE ONE YEAR GUARANTEE OF ALL PLANT MATERIALS THE GUARANTEE BEGINS On
THE DATE OF THE ENGINEER'S OR OWNER'S WRITTEN ACCEPTANCE OF THE INITIAL PLANTING REPLACEMENT
PLANT MATERIAL SHALL HAVE A ONE YEAR GUARANTEE COMMENCING UPON PLANTING
13 ALL PLANTS TO BE SPECIMEN GRADE, COLORADO -GROWN ANO/OR HARDY SPECIMEN GRADE SHALL ADHERE
TO, Bur IS NOT LIMITED B. THE FOLLOWING STANDARDS
14 ALL PLANTS SHALL 8E FREE FROM DISEASE. PESTS. WOUNDS. SCARS. ETC
15 ALL PLANTS SHALL BE FREE FROM NOTICEABLE GAPS. HOLES. OR DEFORMITIES
16 ALL PLANTS SHALL BE FREE FROM BROKEN OR DEAD BRANCHES
17 ALL PLANTS SHALL HAVE HEAVY HEALTHY BRANCHING AND LEAFING
18 CONIFEROUS TREES SHALL HAVE AN ESTABLISHED MAIN LEADER ANO A HEIGHT TO WIDTH RATIO OF NU
LESS THAN S 3
19 PLANTS TO MEET AMERICAN STANDARD FOR NURSERY STOCK (ANSI 2601-2004 OR MOST CURRENT VERSO'
REQUIREMENTS FOR SIZE AND TYPE SPECIFIED
20. PLANTS TO BE INSTALLED AS PER CNCA & ANSI STANDARD PLANTING PRACTICES
21 PLANTS SHALL BE IMMEDIATELY PLANTED UPON ARRIVAL AT SITE PROPERLY HEEL -IN MATERIALS .t
NECESSARY. TEMPORARY ONLY
22 PRIOR TO PLANTING, FIELD VERIFY THAT THE ROOT COLLAR/ROOT FLAIR IS LOCATED AT THE TOP OF THE
BALLED & BURLAP TREE IF THIS IS NOT THE CASE. SOIL SHALL BE REMOVED DOWN TO THE ROOT
COLLAR/ROOT FLAIR WHEN THE BALLED & BURLAP TREE IS PLANTED. THE ROOT COLLAR/ROOT FLAIR
SHALL BE EVEN OR SLIGHTLY ABOVE FINISHED GRADE
23 REMOVE POT ON POTTED PLANTS. SPLIT AND BREAK APART PEAT POTS
24 PRUNE PLANTS AS NECESSARY - PER STANDARD NURSERY PRACTICE AND TO CORRECT POOR BRANCHING
OF EXISTING AND PROPOSED TREES
*000 (ONNFt
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NOTE:
FENCING SUPPLIER SHAH PROVIDE FINAL AND SEALED FENCING DRAWINGS WITH MATERIAL AND
SPECIFICATION REQUIREMENTS
2 A KNOX PAD LOCK WILL BE PLACED ON CHAINED GATE OR KNOX BOX WITH GATE ACCESS KEYS
WILL BE MOUNTED AT THE MAIN ENTRANCE FOR FIRE DEPARTMENT ACCESS
20 0 (TNT)
a
3
WILD LIFE FENCE DETAIL
.0404 WVtro
ENO 18
25 THE NEED FOR SOIL AMENDMENTS SHA,
BE DE TERMINED UPON SITE SOIL CONDITIONS
PRIOR TO PLANTING LANDSCAPE CONTRACTOR
SHALL NOTIFY ENGINEER FGR THE NEED OF ANY
SOIL AMENDMENTS
26 BACKE-ILL SOIL AND TOPSOIL TO BE
EXISTING TOP SOIL FROM SITE FREE OF ROOTS,
ROCKS LARGER THAN ONE INCH, SUBSOIL
DEBRIS, AND LARGE WEEDS UNLESS SPECIFIED
OTHERWISE MINIMUM 12- DEPTH TOPSOIL FOR
TREE, SHRUBS. AND PERENNIALS
27 PROVIDE MULCH FOR ALL TREE AND SHRUF,
PLANTINGS PER DETAIL MULCH TO BE
SHREDDED HARDWOOD AND FREE OF
DELETERIOUS MATERIAL MULCH 3' DIAMETER
RING AROUND ALL TREES AND SHRUBS TO A
DEPTH OF 4- KEEP MULCH OFF TRUNK
28 CONTRACTOR SHALL PROVIDE NECESSARY
WATERING OR IRRIGATION OF PLANT MATERIALS
UNTIL FULLY ESTABLISHED.
29 SYSTEM IS OPERATIONAL OWNER WILL
NOT PROVIDE WATER FOR CONTRACTOR
30 REPAIR, REPLACE. OR PROVIDE SOO/SEED
AS REQUIRED FOR ANY ROADWAY BOULEVARD
AREAS ADJACENT TO THE SITE DISTURBED
31 DURING CONSTRUCTION
32 REPAIR µL DAMAGE TO PROPERTY FROM
PLANTING OPERATIONS AT NO COST TO OWNER
Westwood
"OW fill %II 4140
101/oC'••t, 4'a, War. but •100
Wn', 'St to IOW
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1724 Gilpin Street,
Denver, CO 80218
REVISIONS
A • WW1= SN•TUF•• Fa Canty Mrs.
X
Vasquez V Solar
Weld County, Colorado
SRC #080108
Landscaping and
Screening Plan
NOT FOR CONSTRUCTION
OA t 10/28/2020
Stitt
C.102
U
L_
A
B
C
D
E
G
1 1 2 1
O 2019 Westwood Professional Services, Inc
3
4 L S I 6
USE BY SPECIAL REVIEW USRXX-XXXX
4.000 MW -AC (4.826 MW -DC) SOLAR ARRAY PROJECT
7
A PORTION OF THE WEST 1/2 OF THE NE1/4 OF SECTION 17, TOWNSHIP 3 NORTH, RANGE 66 WEST OF THE 6TH P.M.,
COUNTY OF WELD, STATE OF COLORADO
VASQUEZ V SOLAR
VASQUEZ V SOLAR
FACILITY
PLEASE CALL (XXX) XXX-XXXX
TO CONTACT THE PROJECT
OPERATOR.
RANI I Jt' I II KA I K)N AI SI t: N I .LA.V C E.
CONTACT MO WILL If REVISED PRIOR TO CONSTRt.X1K) .
QENERAL NQ1ES.
ALL SIGNS SHA.I BE SHOWN ON -HE MAP AND SHALL ADHERE 10 CI•APTER 23, ARTICLE
IV DIVISION 2AND APPENDICES 23 -C.23 -D AN) 23-E Of THE WELD CCUN-V CODE
ADOITIONAI SIGNAGF WII L BE INCL uD=D WITHIN THE SITE AS NF D'D PER NATIONAL
Flil1 RICAL CO)1
WELD COUNTY CASE NUMBER USR19.0054 (DEPARTMENT OF PLANNING SERVICES)
A1WARNING
HIGH VOLTAGE - KEEP OUT
PHOTOVOLTAIC ARRAY
AUTHORIZED PERSONNEL ONLY
►- 12'
WARNING LABEL FOR AGRICULTURAL SECURRY %ENCE SPACED EVERY 100 FEET AROJND
PERT V ETri Of ARRAY
8
9
(.& 48 Hours Defore o,gg"n
811 or iDIG811.co1
CalOrado 811
Westwood
*u .. (/M fit IPSO 101t0 Ilia.. W., We, L.te eta)
Stu.. yr (D W/)'
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•t•AILD tot
•
i SunShare
(now. to.••
1724 Gilpin Street.
Denver, CO 80218
A CJ7&I30f Susntr••d fee tarty Ann
Vasquez V Solar
Weld County, Colorado
SRC #080108
Signs
NOT FOR CONSTRUCTION
t)A'f
10/28/2020
E.101
40° 13' 56" N
40° 13' 40" N
°
A
0
0
giT
516880
N
Hydrologic Soil Group Weld County, Colorado, Southern Part
(VasquezV)
516940
Ill Meap rniwy Qo o l o ' widbg
516940
517000
Map Scale: 1:2,460 if printed on A portrait (8.5" x 11") sheet.
0
35 70
140
517060
517120
517120
Meters
210
Feet
0 100 200 400 600
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: JIM Zone 13N WGS84
517180
517180
104° 47 50" W
0
53
0
s
0
40° 13' 56" N
40° 13' 40" N
UsD\ Natural Resources Web Soil Survey
r Conservation Service National Cooperative Soil Survey
7/21/2020
Page 1 of 4
Hydrologic Soil Group Weld County. Colorado. Southern Part
(VasquezV)
MAP LEGEND
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
A
AID
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Lines
re 0 A
r • A/D
#
B
B/D
C
• • C/D
•
Soil Rating Points
a
0
■
•
A/D
B
B/D
MAP INFORMATION
C The soil surveys that comprise your AOI were mapped at
1.24,000.
C/D
D
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
1-I
Background
Aerial Photography
Interstate Highways
US Routes
Major Roads
Local Roads
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection. which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 19. Jun 5, 2020
Soil map units are labeled (as space allows) for map scales
D 1:50,000 or larger.
Not rated or not available Date(s) aerial images were photographed: Jul 19, 2018 -Aug
10, 2018
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
7/21/2020
Page 2 of 4
Hydrologic Soil Group —Weld County, Colorado, Southern Part VasquezV
Hydrologic Soil Group
Map unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
44
Olney
loamy
3 percent slopes
sand,
1 to
B
18.1
55.9%
45
Olney loamy
5 percent
slopes
sand. 3 to
B
3.0
9.2%
47
4
Olney
1
fine sandy loam,
to 3 percent slopes
B
10.7
33.2%
72
Vona loamy
percent slopes
sand. 0 to 3
A
0.6
1.8%
Totals for Area of Interest
32.4
100.0%
Description
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation. are thoroughly wet, and receive
precipitation from long -duration storms.
The soils in the United States are assigned to four groups (A, B, C. and D) and
three dual classes (A/D. B/D. and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential) when
thoroughly wet. These consist mainly of deep. well drained to excessively
drained sands or gravelly sands. These soils have a high rate of water
transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep. moderately well drained or well
drained soils that have moderately fine texture to moderately coarse texture.
These soils have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of
water transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink -swell
potential, soils that have a high water table, soils that have a claypan or clay
layer at or near the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D. B/D, or CID), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in
their natural condition are in group D are assigned to dual classes.
L.SDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
7/21/2020
Page 3 of 4
Hydrologic Soil Group —Weld County, Colorado, Southern Part VasquezV
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff. None Specified
Tie -break Rule: Higher
SI),\ Natural Resources Web Soil Survey
a Conservation Service National Cooperative Soil Survey
7/21/2020
Page 4of4
DRAINAGE REPORT FOR THE
Vasquez V Small Scale
Solar Facility [usRxX-XXXX]
County of Weld, Colorado
JULY 2020
PREPARED FOR:
1a4bz
75unShare
PREPARED BY:
Westwood
Drainage Report I Vasquez V July 21, 2020
Drainage Report
Vasquez V Small Scale Solar Facility
Weld County, Colorado
Prepared For:
SunShare, LLC
1151 Bannock Street
Denver, Colorado 80204
County Case Number USR XX-XXXX
Project Number: Roo22o49.04
Date: July 21St, 2020
Prepared By:
Westwood
12701 Whitewater Drive, Suite 300
Minnetonka, MN 55343
(952) 937-5150
i i I Confidential and Proprietary. TBPLS Firm #10074302
Drainage Report I Vasquez V
Table of Contents
ProjectSite............................................................................................................ 2
GeneralDescription of Project............................................................................... 2
DrainageDesign.................................................................................................... 2
Stormwater Runoff Analysis 2
Water Quality 3
Drainage Improvements 3
Adjacent Areas •••••••••••••• 3
Onsite Soils 3
Methodologies Used For Drainage Report and Analysis3
Timing/Phasing Schedule...................................................................................... 3
BMP Installation, Inspection, and Removal 4
Permanent Stabilization 4
Summary 4
References Cited 5
Attachments
Attachment 1: Vasquez V Small Scale Solar Facility Site Plan
Attachment 2: NOAA Atlas 14 Rainfall Data
Attachment 3: Rational Method Calculations and MHFD Detention
Attachment 4: USDA Web Soil Survey Map
1 I Confidential and Proprietary. TBPLS Firm #10074302
Drainage Report I Vasquez V July 21, 2020
Project Site
This Drainage Report has been prepared on behalf of SunShare, LLC for the proposed
construction of the Vasquez V Small Scale Solar Facility in Weld County, Colorado hereinafter
referred to as the project.
The proposed development is located in the NE1/4 Quarter of Section 17, Township 3 North,
and Range 66 West of the 6th Prime Meridian. More specifically the Project site is
approximately 27.2 acres of land and is located approximately 1.4 miles northeast of Platteville
and approximately 0.3 miles west of the Weld County Road (WCR) 29 and 34 intersection, State
of Colorado. The site is covered intermittently with agricultural row crops depending on time of
year. The ground surface slopes to the north at an average slope of approximately 0.20%. The
site is within a FEMA Zone X, which is an area of minimal flood hazard. The site is therefore not
within a loo -year flood plain.
General Description of Project
It is proposed to develop approximately 27.2 acres of land for the project of an approximate
5MW solar array. The solar array will deliver renewable energy to Xcel Energy under a 20 -year
power purchase agreement (PPA). The facility is designed for un-manned operation except for
bi-annual maintenance. Therefore, this facility will not represent any significant traffic impact to
the surrounding county roads.
Upon termination of the PPA, the improvements will be removed and the land will be restored
to historic conditions.
Drainage Design
The area under and around the solar panels will be planted with low -maintenance grass seed
mix. Very little additional impervious surface will be added to the site. The only new impervious
surface is the gravel access road and concrete inverter pads, which are approximately 32,278
square feet and 610 square feet, respectively per Weld County solar panels are not considered
impervious on A or B soils. Given this, the site will need a detention pond per Weld County
requirements. In Proposed Conditions runoff will continue to sheet flow to the northwest as it
does in existing conditions. Historically stormwater runs northwest and then continues
northwest. When the site is fully vegetated after construction, stormwater will flow off the solar
panels, onto the ground, and run through the grass. The onsite soils, which are all categorized as
hydrologic soil group B (Attachment 4), are conducive to infiltration. This soil type was also
categorized as a loamy sand and sandy loam for the runoff coefficient. The fully vegetated site
will slow runoff and encourage infiltration.
Stormwater Runoff Analysis
A detention pond has been sized to store the stormwater runoff generated by the 1 -hour, 100 -
year storm falling on the developed site and release of the detained water at the historic runoff
rate of the i-hour, 1O -year storm falling on the undeveloped site for non -urbanizing areas.
Historic is defined as an undeveloped site with a 2.0% imperviousness. The Rational Method
was used to determine the runoff rates for the project. These can be found in Attachment 3.
2 ( Confidential and Proprietary. TBPLS Firm #10074302
Drainage Report I Vasquez V
Water Quality
The project needs to treat the Water Quality Capture Volume (WQCV) for the added
imperviousness of the project area per the USDCM Volume 3 Section 3. Using the equation in
the manual a WQCV that needs to be captured based on a site imperviousness of 3% is .022
watershed inches which requires a BMP storage of 0.051 ac -ft. This storage amount will be
counted in the detention pond design. The water quality volume must be detained over 40
hours.
Drainage Improvements
There only proposed drainage improvements onsite is the required detention pond. The onsite
detention pond was sized using the MHFD Detention Spreadsheet which can be found in
Attachment 3 showing all necessary calculations. The pond exceeds the required volume of
0.645 ac -ft.
Adjacent Areas
No channels flow through or adjacent to the project area. Minor runoff from the southern and
eastern portions of the parcel sheet flows onto the project site and continues northwest. This
water will pass through the basin.
Onsite Soils
The soils for this project site are classified as hydrologic soil group B (Attachment 4). The soil
types found in the project site area are Olney sandy loam, 1 to 3 percent slopes. This soil
information is based on the Natural Resources Conservation Service (MRCS) National
Cooperative Soil Survey. The runoff coefficient typically referred to as a "C" value in Attachment
3 is almost identical in proposed conditions as in existing conditions. The proposed vegetated
conditions will slow run off and encourage infiltration.
Methodologies Used For Drainage Report and Analysis
The site does not qualify for an exemption to the stormwater detention requirement based on
the Weld County ordinance for B soils due to the amount of added impervious area. This
requires the site to have a detention basin. Existing and proposed discharge rates were
calculated using the Rational Method. The Rational method uses a runoff coefficient which is
commonly referred to as a C value. This is not a soil type, but a value used to describe to runoff
rates of different land covers. Rainfall data was obtained from NOAA Atlas 14 and utilized a site -
specific nested rainfall distribution (Attachment 2).
Minimal grading is proposed to meet the tolerances of the proposed solar array. Drainage
patterns will remain the same with the addition of the basin that outlets similar to existing
conditions. Minimal grading is proposed onsite and drainage conditions will remain the same as
existing. Offsite drainage area remains the same as existing conditions.
Timing/Phasing Schedule
In the initial and interim stages, the contractor shall install silt fence, vehicle traction control
and concrete washout at the entrance, and a stabilized staging area. In the final stage of
construction, seeding and mulching and surface roughing shall be done in all disturbed areas,
3 I Confidential and Proprietary. MKS Firm #10074302
Drainage Report I Vasquez V
and erosion control blankets shall be installed on all slopes greater than 4:1. The contractor
shall also remove the vehicle traction control, concrete washout, stabilized staging area, erosion
control blanket, and silt fence in the final stage of construction.
BMP Installation, Inspection, and Removal
BMPs will be installed prior to project construction, with the exception of the BMPs in the final
stage. BMPs will be inspected weekly and as required by the County through project completion
by the contractor. BMPs will be maintained and remain in place at least until construction is
finished and the site is vegetated. Once all exposed areas have been covered, the BMPs may be
removed. Since the project does not include any other disturbance, no additional site
stabilization is necessary and/or warranted.
Permanent Stabilization
The project will be seeded with the Weld County's upland rea seed mix to establish permanent
stabilization after construction activity has ceased. Reference the table on sheet 13-66 of
Appendix A in the USDCM Manual, Volume 2, Chapter 13. As per the USDCM Manual,
permanent seeding involves the loosening of soil, applying topsoil, drill seeding the disturbed
areas to a depth not less than 1/4 inch and not more than 3/4 inch, and crimping the seeded areas
in straw mulch at a rate of 2 tons per acre to provide immediate erosion protection.
Summary
The proposed site will be designed to maintain its existing drainage patterns. Due to the limited
amount of impervious surface proposed and the proposed conversion of the site from row crops
to the vegetated cover under the panels along with the proposed detention pond, a decrease in
runoff rates is expected for the proposed conditions when compared to existing conditions.
Water quality will be provided by the disconnected impervious and the proposed vegetation
below the panels along with the detention pond.
Based on the landcover conversion and the addition of the detention pond the site design will
adequately protect public health, safety, and general welfare and will have no adverse impacts
on public right-of-way or offsite properties.
4 I Confidential and Proprietary. TBPLS Firm #10074302
Drainage Report I Vasquez V
References Cited
National Engineering Handbook, Part 63o Hydrology. Chapter 9 Hydrologic Soil -Cover
Complexes. USDA. NRCS. 210-VI-NEH, July 2004
Web soil survey. Retrieved July 2020, from
https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx
NOAA, & Service, N. W. AHPS Precipitation analysis. Retrieved July 2020, from
http://water.weather.gov/precip/download.php
USGS. USGS water resources: About USGS water resources. Retrieved March 2020, from
https://water.usgs.gov/GIS/huc.html
FEMA Flood Insurance Rate Maps, retrieved July 2020 from
https://msc.fema.gov/portal/advanceSearch#searchresultsanchor
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NOAA Atlas 14, Volume 8, Version 2
Location name: Platteville, Colorado, USA'
Latitude: 40.2303°, Longitude: -104.7995°
Elevation: 4890.94 ft*"
• source: ESRI Maps
" murce. USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
Sanja Perica Deborah Martin, Sandra Paviovic, Ishani Roy. Michael St. Laurent, Carl Trypaluk.
Dale Unruh, Michael Yekta, Geoffery Bonnin
NOAA, National WVeather Service. Silver Spring, Maryland
PF tabular I PF graphicai I Maps & aerials
PF tabular
PDS-based
point precipitation
frequency
estimates
with
90% confidence
intervals
(in
inches)
Average recurrence interval
(years)
l
Duratioiii
2
1 slaw
25
50
l 100
J 200
L 500
11 100011
-�1
Sin
(0.188-0.300)
0.237
0.287
(0 227-0.364)
0.384
(0 303-0.489)
0.480
(0.376-0.614)
0.769
(0.573-1.06)
0.920
(0 660-1.30)
1.09
(0.746-1.59)
1.33
(0.876-2.00)
1.54
10
-min
0.347
(0.275-0.440)
0.420
0.562
0.702
(0.551-0.899)
0.927
(0.715-1.27)
1.13
(0.840-1.56)
1.35
(0.966-1.91)
1.59
(1.09 2 32)
(1.218.9-2593)
2.25
(1.43 3.39)
15
-min
0.423
11
0.512
0.686
0.857
I 1.13
1.37
ll 1.64
1.94
2.38
2.75
(0.335-0.536)
0.405-0.650)
(0.541-0.874)
(0.671-1 10)
(0.872-1.55)
(1.02-1.90)
(1.18-2 33)
(1.33-2.83)
(1.56-3 57)
(1.74-4.13)
30 -min
0.568
(0.450-0.721)
0.685
0.542-0.870)
0.916
(0.722-1.17)
114
(0.896-1.46)
1.51
(1.17-2.08)
1.84
(1.37-2.54)
I 2.20
(1.58-3.12)
I 2.61
(1.79-3.81)
I 3.20
(2.10-4.81)
3.70
(2.34-5.56)
60 -rein
0.700
0.555-0.888)
0.835
(0.661-1.06)
I 1.11
(0.874-1.41)
1.39
(1.09-1.78)
1.84
(1.43-2.55)
2.26
(1.69-3.13)
I 2.72
(1.95-3.87)
3.24
(2.22-4.74)
I 4.01
(2.64-6.02)
4.66
i (2.95-7.00)
2 -hr
0.832
(0.665-1
05)
0.985
(0.786.1.24)
1.30
(1.04.1.64)
1.63
(1.29-2.07)
2.18
(1.71-2.98)
2.67
(2.02-3.68)
3.23
(2.35-4.56)
3.87
(2.69-5.60)
4.82
(3.20-7.15)
5.61
(3.59-8.32)
3-hr0.909
4:19.13)(0.856-1.33)
1.07
1.40
(1.12-1.75)
1.75
(1.39-2.20)
(1.85-319)
2.34
2.88
(2.19-3.94)
3.49
[(2.55-4.89)
4.19
(2.93-6.02)
5.2 3
(3.50-7.71)
6.10
(3.93-8.99)
6 -hr
1.07
(0.869-1.32)
1.24
(1 01-1 54)
1.61
(1.30-1.99)
1.99
(1.60-2.48)
2.63
(2.10-3.55)
3.22
(2 48-4.36)
3.89
(2 88-5.39)
4.66
(3.29-6 61)
5.79
(3.91-8.43)
6.75
(4.39-9.81)
12-h
r
11 1.26
(1.03-1.55)
1.49
(1.22-1.82)
1.92
(1.57-2.36)
3.02
(2.40-3.97)
3.62
(2.79-4.79)
4.27
(3.17-5.80)
5.01
(3.56-6.98)
6.08
(4.14-8.69)
6.97
24 fir
1.51
(1.24-1.82)
1.78
(1.47-2.15)
2.27
(1.87.2.76)
2.73
(2.23-3.33)
I 3.45
(2.75-4.44)
1 4.06
(3.15-5.27)
4.72
(3.53-6.29)
I 5.44
(3.90-7 45)
6.48
(4.45-9.12)
7.33
(4.88-10.4)
2 -day
1.72
(1.44-2.06)
I 2.06
(1.72-2.47)
2.65
(2.20-3.19)
3.18
(2.62-3.83)
3.94
(3.16-4.96)
I 4.56
5.22
5.92
I
6.89
(4.77-9.52)
7.67
I (5.15-10.7)
(3.56-5.82)
(3.93-6.82)
(4.27-7.95)
1.88
(1.58-2.24)
2.23
(1.87-2.65)
2.83
(2.36-3.37)
3.36
(2.78-4.02)
4.13
(3.33-5.16)
I 4.76
(3.74-6.02)
5.42
(4.11-7.03)
6.13
(4.45-8.17)
7.11
(4.95-9.74)
7.89
(5.34-10.9)
4-day11
2.01
(1.69-2.38)
2.36 I
(1.98-2.79)
2.96
(2.48-3.52)
3.49
(2.91-4.17)
4.27
(3.46-5.31)
4.91
- (3.87 6.1$)
5.58
(4.247.19)
6.29
(4.58-8.33)
7.27
(5.09-9.91)
8.06
(5.48-11.1)
7 -day j
2.30
(1.95-2.69)
11 2.68 1
(2.27-3.15)
3.34
(2.82-3.93)
1 3.90
(3.28-4.61)
I 4.71
(3.83-5 78)
5.36 11
(4 25-6.66)
6.03
(4.62-7.67)
6/3
(4.94-8.80)
7.69 1
(5 43-10.3)
8.45
(5.79-11.5)
.
10
-day
2.54
(2.17-2.97)
2.97
(2.52-3.46)
3.67
(3.11-4.29)
4.26
5.10
(4.16-6.20)
6.76_11 6.43
(4.59-7.09) (4.95-8.12)
7.13
(5.25-9.24)
8.06
(5.72-10.7)
8.79
(6 06-11.9)
20 -day
3.25
(2.79-3.74)
3.74
4.55
(3.89-5 26)
6.13
(5.04-7.32)
6.83
(5 49-8.28)
7.53
(5.85-9.35)
8.24
(6.13-10.5)
9.18
(6.57-12.0)
9.88
(6.90-13.2)
30 -day
3.80 11
(3.29-4.36)
4.36
(3.77-5.00)
6.27
(4.54-6.05)
6.00
(5.14-6.93)
1 7.00 il
(5.78-8.29)
7.76
(6.27-9.33)
I 8.51
(6.64-10.5)
9.26
(6.93-11.7)
10.2
(7.37-13.3)
11.0
(7.70-14.5)
45 -day
4.47
(3.89-5.09)
5.14
(4.46-5.85)
619
(5.36-7.07)
7.04
(6.07-8.07)
8.18
(6.79-9.60)
9.03
(7.33-10.8)
9.86
(7.74-12.0)
10.7
(8.03-13.4)
11.7
(8.48-15.1)
12.5
(8.82-16.3)
60 -day
5.02
(4 38.5.68)
5.78
(5.05-6.55)
7.00
(8.09-7.95)
7.97
9.24
10.2
11.1
12.0
(9.05-14 9)(9
13.1
1
11379.i)
1 Precipitation frequency (PF) estimates in this
Numbers in parenthesis are PF estimates at
(for a given duration and average recurrence
table are based
low er and upper
interval) w ill
bounds
be
on frequency analysis of partial duration series (PDS).
of the 90°ro confidence interval The probability that precipitation frequency estimates
greater than the upper bound (or less than the low er bound) is 5% Estimates at upper
bounds are not checked against probable rraxirrum precipitation (PMP) estimates and may be higher than
Pease refer to NOAA Atlas 14 docurrent for more information
currently valid PMP values
Back to Top
PF graphical
PDS-based depth -duration -frequency (DDF) curves
Latitude: 40.2303°, Longitude -104 7995°
Duration
S 10
r
a
s
C
c
NOAA Atlas 14, Volume 8, Version 2
16
r
N
>>' >,
M I,-0 '0 ,
N 4 O O O U ‘D
>1 )0% >Ds
(13 rota
V V —01
25 50 100 200 500 1000
Average recurrence interval (years)
Created (GMT): Mon Jul 20 2109:37 2020
Back to TQQ
Maps & aerials
Small scale terrain
Average recurrence
interval
(years)
1
2
5
10
--- 25
50
100
200
500
1000
Duration
5-{nrn
10 -mm
15 -mm
30 -min
60 -mm
2 -hr
3 -hr
6 -hr
12 -hr
24 -hr
— 2 -day
3 -day
4 -day
10 -day
20 -day
30 -day
45 -day
60 -day
1
atteville ,=
r
3k m
2mi
t
Large scale terrain
Large scale map
For tColl iris
•
Fort Colt' s
4 i
r'
Bould
100k in
i
60m
Chtyetn a -- --•\ _
Greeley
Colorado
Large scale aerial
Back to Top
US Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Water Center
1325 East West Highway
Silver Spring, MD 20910
Questions?: HDSC.Questions@noaa.gov
Disclaimer
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DETENTION BASIN STAGE -STORAGE TABLE BUILDER
MHFD-tWentnnn, Veislion 4.02 (F=ebruary 1020)
Project: Vasquez V
Basin ID: DA -1
allia
.Ia I
eireweixr
POOL
Watershed Informaber+
fat 3
brit MN°
owlet•
Example Zone Configuration (Retention Pond)
Seas ani BMP Type =
Watershed Area =
Watershed Lent =
Washed length to Centrpp a
Watershe0 Slope 14
Watershed lmpavrousness a
Pe tentage Mr:robot Sod Group A a
Percentage Hyclo)0 pc Sold Group 8•
Pacerttage Hydrologic Sal Groups C./C •
Target WQCV Drain Time •
Location for 1 -hr Rarnfal Depths a Use Input
EDO
27.20
1,467
750
0.012
3.00%
0.0%
100.0%
0.0%
40.0
is 'w
oa»ce
ones
ft
Rift
pest
percent
percent
pesctrt
raa
After ptiroirg requires inputs above including 1-fwu retreat
depths, dick 'Run Cuir, to gene -ate runoff hydrogra(tt usern
the entedde d Colarad> Urt;an r+ydrogrepn Procedure.
Water Quality Capture Volurne (WQCV)
Excess Urban Runoff Volume (EURV) a
2-yr Runoff Votu ne (P1 • 0.84 n.) •
5-yr Runoff volume (P1 a 1.11 n.) •
10-yr Runoff Volurne (P1 • 1.39 en.) •
25 yr Runoff Vdunne (P1 a 1.85 in.) a
50-yr Runoff Vohunx (P1 a 2.26 en.)
100-yr Runoff Vowme (PI a 2.72 irt) •
500-yT Runoff Volume (P1 • 4.01 it) a
Approximate 2-yr Detector volume a
Approxmate S-yr Detanbor Volume a
Appronmaee 10-yr Drenbbon Volume ■
Approximate 25-yr Detenoor Volume a
Approximate 50-yr Detestooe Volume =
Approximate 100-yr Oetentior Voiurne a
!)ef4ne 200,5 and Basin Gee metry
Zore 1 Vain (WQCV) _
Zone 2 Volume (100 -year • Zone 1) =
Seca Zone 3 Storage volume (Optional)
Total Detention Basch Volume =
Initial Surcharge Volum (ISV) a
Intt,af Surcharge Depth (ISO) a
Total Aveilatle Detention Dean (Nino a
Depth of Trickle Channel (14.4.) ■
Slope of Trickle Glenna (5.3 •
Scopes of Mom Basin Sides (5..,a„)
Basin Length -to -Wart Rao° (kw) •
lnNal Surcharge Area (Alit') a
Surcharge Volume Lerxth (List') *
Surcharge Volume Width (W,s;,)
Dept') of Basin Roar (He() a
Length of Basin Floor (l rt)
Mole of 3a an Roe, (Wkoca) •
Area of Basin Floor (Atwell) a
Volume of Basin Root (VnooR) a
Depth of Man Basal (Houk) a
Length of man Basin (Lo:%)
Width of Man Basin (W►Ntr,)
Area of Man Basin (Aram) =
Volume of Man Basin (Vw4%) •
Calculated Total Basin Volume (V„y) _
0.051
0.070
0.02 7
0 055
0.402
1.538
2.380
3.573
6.50I
0.028
0.050
0.227
0.413
0.442
0.645
0.051
0.594
0.645
7
0.50
2.00
0.50
0.002
3
3
14
3.7
3.7
0.88
446.4
150.4
67,140
19,983
0.12
447.1
151.1
67,570
8,083
0.645
acre-feet
sae -fns
acre-feet
acre-feet
acre -fee
sae -feet
aaefe et
as a -feet
ace -feet
ace -feet
sae -feet
acre-feet
acre-feet
we -feet
acre-feet
acre-feet
acre-feet
acre-feet
acre-feet
ft'
ft
ft
ft
ft/ft
N
R'
ft
ft
R
ft
ft
ft2
ftu
N
It
ft
ftr
It,
acrefeet
rpt1cnd lea Overt
acre-feet
sae -Gout
inches
snCses
inches
inches
inches
indNes
inches
0.84
I.11
1.39
1.85
2.26
272
4.01
Increment
0.50
ft
Stage Storage
De raip ial
Stage
(R)
-„x A:wt.%
:ra7,ic
5tai 'r .
Length
(ft)
Mich
(ft)
Area
(ft 1)
gym' =
Nance
Frca c at n
Area
sae)
Voiurne
(ft')
Volume
(deft;
Top of Mlcropool
0.00
17
3.7
14
0.000
ISV
0.50
3.7
3.7
14
0 000
7
0.000
1.30
3.7
3.7
a
14
0.000
14
0.000
Zone I (WQCV)
1 42
215.0
717
15,855
0.364
2,311
0.053
150
255.2
87.1
22,225
0.510
3,827
0.088
Floor
1.88
i
446.4
150.4
67,140
1.541
20,040
0.460
Zone 2 (100 -year)
2.00
447.1
151.1
67,570
1.551
28,122
0.646
2.50
450.1
154.1
69,373
1.593
62,357
1.432
3.00
453 1
157 1
71,195
1 634
97,499
2.238
3 50
456.1
160.1
73,035
133,556
1066
1.677
400
459.1
163.1
74,852
1.719
170,537
3.915
4.50
462.1
166.1
76,768
1 762
208,451
4.785
5.00
465.1
169.1
78,662
1-806
247,308
5.677
5.50
468.1
172.1
80,574
1.850
287,116
6.591
6.00
471.1
175.1
82,503
1.894
327,884
7 527
6.50
474,1
_
178.1
84,451
1.939
369,622
8.485
7.00
477.1
181.1
86,417
1.984
412,338
9.466
7.50
480.1
184.1
88,400
2.029
456,042
10.469
8.00
483 1
187.1
90,402
2 075
500,742
11.495
8.50
4861
1901
92,422
2.122
546,447
12.95
9.00
489 1
:93.1
94,459
2.168
593,166
11617
9.50
492 1
196.1
96,515
2.216
640,909
14.713
10.00
495.1
199.1
98,589
2 263
689,684
15.833
10.50
498.1
202.1
100,680
2 311
739,501
16.977
11.00
501.1
205.1
102,790
2.360
790,368
18.144
11.50
504.1
208.1
104,918
2.409
842,294
19.336
12.00
507.1
211.1
107,064
2.458
895,289
20.553
12.50
510.1
214.1
t-
109,227
2.508
949.361
21.794
13.00
513.1
,
217.1
111,409
2.558
1,004,519
23.061
13.50
516.1
220.1
113,609
2.608
24.352
1,060,772
14.00
519.1
223.1
115,826
2.659
1,:18,130
25.669
14.50
522.1
226.1
118,062
2 710
1,176,602
27.011
15.00
1
525.1
229.1
:20,316
2.762
1,236,195
28.379
15.50
528.1
232.1
I
:22,587
2.814
1,296,920
29 773
16.00
531.:
235.1
124,877
2.867
1,358,786
31.193
16.50
534.;
238.1
127,185
2.920
1,421,800
32.640
17.00
537.1
241.1
1
:29,510
1
2.973
1,485,974
34.113
17.50
540.1
244.1
131,854
3.027
1,551.314
35.613
18.00
543.:
247.1
134,216
3.081
1,617,831
37.140
18.50
•
546.1
250.1
136,595
3.136
1,685,533
38.695
19.00
549.1
253.1
138,993
3.191
1.754.429
40.276
19.50
552.1
256.1
:41,409
3.246
1,824,529
41.885
20.00
555.1
259.1
143.843
3X2
1,895,841
43.523
20.50
558.1
262.1
146,294
I'
3.358
1,968,374
45.188
1
21.00
561.1
265.1
148,764
3.415
2,042,138
46.881
21.50
564.1
268.1
151.252
3 472
2,117.141
48.603
22.00
567.1
271.1
153,757
3 530
2,193,393
50.353
22.50
570.1
274.1
,
156,281
3.588
2.270,902
52.133
23.00
158,823
3.646
2,349,677
53.941
573.1
277.1
23.50
576.1
280.1
161,382
3.705
2,429,7I7
55.779
24.00
579.1
283.1
163.960
3.764
2,511,062
57.646
24.50
582_1
286.1
166,556
3.824
2,593,690
59.543
25.00
585.1
289.1
169,169
3.884
2.677,621
61.470
25.50
588.1
292.1
171,801
3.944
2,762.863
63.427
26.00
591.1
295.1
174,451
4.005
2,849,425
65.414
26.50
594.1
_
298.1
177,119
4.066
2.937,317
67.432
27.00
•
597.1
301.I
179,804
4.128
3,026,547
69.480
27.50
600. I
304 1
182.508
4.190
3,117,124
71.559
28.00
603.1
307.1
185.230
4.252
. 3,209.058
73.670
28.50
6061
310.1
187,969
4.315
3,302,357
75.8I2
29.00
609.1
3131
190,727
3,397.030
77.985
4.378
29.50
6121
3:6.1
1931503
4.442
3,493,087
80.1%
30.00
615.1
319.1
196,296
4.505
3,590,536
82.427
1
a
•
a
,
I
r
a
1
a
I
MHFD•Daartrxr_r4-02 ram. Basin
'r2?,2'020 12 48 PM
DETENTION BASIN STAGE -STORAGE TABLE BUILDER
Mt-iFD Detention Verstott 4.02 (February 202 0)
a
I SW •
f
a
0.00 7.50
WOO
9201
a 19C
f
ate** (h) •••-tWW14(h) -- Ain Mk)
27_50
147300
49100
•
COD
I
4.570 ----
1.130
0.000
0.00
150
1S.00
Stags (h.)
Agra tams; •••••••Vobnu (ac-ttl
11.50
11410
61.1!0
• 41220
10610
0.000
30.00
I
MHf i•Ceten icn, Version 4.02 (Fecal" 2020)
Project: Vasquez V
Basin I0: Oki
.f.'s,..
•
��✓ rib. a
♦. ra•rl ••.rEx,
n.•
i -./
Ann • 1
fuamp4 Zan* COnftQuration (Rrlvnl•on Pond)
Zone I (WQC'✓)
Zone 2 (100 -year )
Zone 3
(urinated
Stage (ft)
Estimated
Volume (ic-ft)
Qut,:d Type
1.42
0 851
Omit• Plate
2.00
0-394
Wet; INo Page)
Total(ae tones)
tow motif Orifice attlodnrdratrt (Mkt Inc rah ,aril jly.re r 2 V it a Potter 9MPI
tlndderdran Office Invert Depth • µ/A ft (distance Below the filtration media surface)
inches
tknderdrant Orifice Demeter • N/A
U nderd rein Orifice Centri d •
0 645
raw u:atMC>arawlrrs Its Undrrc ra
Underdraw Orifice Area • N/A In-
Py/A Jfcct
invert or lowest Orifice •
Depth at top d Zone arc Orifice Pate
Orifice Pate Ortfce Vertta Spacing •
:flee Plate 0no° Area per Row •
G,00
1 42
5.70
0.18
ft (mauve to bass, bottom at Stage • 0 R)
ft (Serie to basin bottom at Stage • 0 R i
inches
sq -%Pa darter • 1/2 inch)
WQ Office Area per Row ■
Eilpocal Half-Wevi •
MOW Slot Cenvad •
EMapbcal Supt Arnsa •
Vaiu t lluuc. )tS%X f11to I{K.L Al min Gaon 1.1r1s4 Raw rrtufIDerev Merin
.Met I:4 ftlanlia1
Stake of Orin Cuwait 1N)
Orlke Arise (to niches)
dw. 1 inquired)
Row 1 ropuonal)
dew I Carbons)
Roe 4 (optional)
Row S (a)Rnnar)
-
Raw 6 optional)
Row 7 (agtonaq
Row a Optional)
000
0 41
0.05
r
0 la
0-t5
0.)a
May of Orece Cetenres (ft)
unite Area Or) lens)
AetingHt—ilthaLainrAreaiaLiti
Invert d Vetcat Orike
Depth at top of Zone using Vertical Orifice •
Vertical ()dice Diameter
Raw 9 (upfront)
Now 10 (optionei)
Ron 11 (opOonsll
taw 12 :c9Oo' :1
Mon 1) (optnrul)
Row 14 (optional
Can 15 (a4'b0n•l)
ko.. 16 (optioran
•
ft Creative to basin bottom at Stage • 0 R)
R Ireiasm to basin bottom at Stage • 0 ft)
inches
vertical Qrnfke Area •
vertical Orifice Centred •
Ca•cteetcc 'alarncttn ter Vertical >#Kt
Prot Selected
Nix Seemed
it;
feet
their Inrnrt Overfkm Wei (frmYloz with Par x,S•oped Grate and, in- t Dtoe Oft Pieta nciae_anoensdel Vier (and No Lithe Peel
Overflow We Front Edge Hag)*, Ho -
Overflow Wee Bottom Length •
Overflov. Wer Side Slooes •
Marc tenon d War Skin •
Overflow Grate Open Area 11. •
Debra Clogging 1t. •
Ions 2 Wes
Nutt Selected
1.42
NIA
WA
NIA
ft !n-trr.r• t bat buttrvn at Rape 3 R) Knight or Grate tipper Edge, H, •
fed Overflow Wer Slope Length •
H v Grate Open Area I 10O-yr Otd%cs Area •
feet Overflow Grata Open Area w/a Deans •
%, grate open area/taal area Ore:flow Geste Open Area w/ Debris -
'M•
111ef Ir. yltdllia YIOe iii slow tit t1Crcn tllta taut
rie_ •
ann1aar wrnnel
Depth to Invert of Outlet Pepe -
Circular Orifice Demeter•
Selected
Net Wetted
Neetted
ft (.mane t:ww b
wares
NIA
P4/A
Use Ingot f rrrgener Salvor auterajaa ex f reer-n(1gla
Spillway Invert Stages
Spilway Cent Length •
Spenser Erd Stogcs ■
Freeboard above Max Watt Surface a
SOW Er Pose nn reetrve to Overflow Wes •
3.80
13.00
400
00
Orcreavvdia
bottom at Stage - 0 ft i
ft (reliant to baswl bottwn at Stage - 0 R)
feet
H.V
feet
Outlet Orifice Area
Outlet Drtte Central
Half -Central Angle of Recncta Plate on Page
Sp .war Design Row Dever -
Stage at Top of Freeboard •
Basin Area at Top of Freeboard
Basin Vo me at Top d Freeboard
rise as' fns QYCti1Qt Vie•
Zone 2 .Nest
Nil! Seected
NA
WA
N/A
N/A
N/A
feet
feet
acres
acre n
het
RacialityQrQn
Design Sturm Ileum limed
tlrrKxr raR.tail Uepd, (my -
CiRIP Ralf Voitrrre (acorn) -
trtbw Hydret;rapn vitro (afire-) •
cute ►rederebr^tenl Pent Q (d%) •
-s- ;es. Orem& ►'eenebverril Paeii Q Ids) a
Pr•de.raicarere tina rest F. 4 (dalaae) -
Pen Inflow Q (di)
reek outflow Q (di.) -
eatrO reek uuUbw to n'rewaekkonsii O -
Yea lu. (-nntroary Fiore •
na. vdocay th'augn Garr t {fps) •
nes Velocity UNrowgh teat. 2 Cps) -
erne to Oran 97% Our beta. volume peers) •
In to bran 49% at Into, Volum (Mist) •
14aaswun Pord.tg Depth (ft) •
Anne ar rlaorn um Pending Depth (aces) •
Maurine VWer %bred (Sire ft) •
The ..1t' .1r' .'.Y•',Ct !At .rfe3L•T ."Jrrr ,"..h1 • ni 'LOOM r .r•'et r.r:r .-'. nen ..Mn"f.•ri the !rsolca .anyd• •J.*•"ti Lefrt {Can.'s n aY yn_ tw'y -1-r/
WOO/
WRY
2 Yoe
Slat
30 Yet
25 Year
S0 You
,
108 Year
SOD Year
PHA
NIA
0.84
1.11
:.39
1.85
2.26
2.72
4.01
0 051
0070
a
0 027
0.055
0.402
1.538
2 A
3.573
4-501
P4/A
NIA
0 0 7
0.055
0 401
1 538
2-380
3.573
6 501
N/A
N/A
0.1
0.4
4.9
17 5
2b.2
37.4
55,4
NjA
N/A
P
d ^!
4
',
a 0.
a his
r. w
NIA
N/A
D 01
0 01
0 02
0-03
0 15
0•S4
168
QA__
WA
0.3
0.6
5.1
17.7
26.4
37 6
65 6
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
229
N/A
N/A
NIA
0.1
0,1
0.0
0.0
0 0
0 S
Plate
Plata
Plate
Plate
Plate
Plate
Pats
SPieerar
SPd*MY
P4/A
NIA
WA
NIA
jIA
NIA
N/A
N/A
NIA
IVA
N/A
P41A
N/A
N/A
►i/A
NIA
N/A
P4/A
33
SO
21
40
>120
>120
>120
>120
•120
3i
52
22
41
> 120
> 12C
> 120
> 120
>120
1. sZ
147
132
1.41
I64
156
3.08
3.60
4.44
0 36
0.45
0.20
v.35
1.37
16c
L
16'4
I.70
1.76
0-053
0.073
0.022
0.050
0.387
1527
2.369
_ 3.556
_ 4662
DETENTION BASIN OUTLET S i RUCTURE DESIGN
ARIA pM71, MUMS (hall
PfteD-Deln av&. Vasa, 'L cX1 Werenta .'0191
VIM r
too ail
S. 1.
x
u
:0 •
$1
0
4ml.mwits
O1
Ot
141000
.:a X.)
.o Ma:
:S`ccc
Coe
owe mot poi
lima
.SUM
-•1M
--'a
- earl
law INS M.. ft')
-«arsSnd M. I'1.71
SV•wi Na M•:1
yokels WE
••e —Summon Yom IR•11
ano.outilow kOl
•..«Su-wurl Owlets kM
I
MK {11.1
0.00
00
app
SAD
00laS arm Mi
10
1*
• 101
$40.1,-0 Mot As aspil wan
na10 s MS
owns bowl
Yarn
mot vas
DETENTION BASIN OUTLET STRUCTURE DESIGN
010100r Hydrorapa 1"p'kbo att Fiijwne •
h t .e llaraSm
the a rf. rwr7 $o •P. ,-u. ,Avret rear f $mgs-.atn *-er t}1/2i ..+r f.t w4T ,-44.10.4 P,4w14+*If J.-w6,rd n 1 Vet re ste.,
Tone Interval
S 00 R.,
SOURCE
CUP P
401)9
CIAO
01 W
1 CU3ffr
CLAW
CUF01
GIMP
Cllter
in
VN1;i1CY Ws]
EURY raj
2 Yet (ds)
5 Year Ids)
10 Yost (dil
25 Yea WO
SO Yaw (eh)
100 Year (d1)
500 Year (dsj
00000
000
o Oe
uc0
000
000
000
000
000
0.00
005 00
_ 000
0-00
0 CC
0.00
0.00
0.00
0.00
000
000
0 10:00
000
0.00
00G
o 00
0.00
0.00
0.00
000
000
0 15.00
000
000
O 00
0.00
0.00
u 00
0 01
0 01
0,01
0:20:00
0.00
000
001
0.01
0.02
0.01
0.01
9 Q
0.31
0:25:00
Ow
ape
a;;
Q 7e
108
024
044
1 11
10 /I
0.30:00
000
000
0?6
051
3.93
1.19
1214
18.119
3723
0 75:00
900
0_00
011
o w
5.04
12 4v
11 5e
10 SO
55•1
0:400
000
0.00
033
0 10
101
1101
15 S1
15111
63.48
0'45:00
000
000
0 J1
0 $6
4 7)
it 71
26 34
17. S7
6461
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40° 13'40"N
It
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516890
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5130
Hydrologic Soil Group —Weld County, Colorado. Southern Part
(VasquezV)
517000
I I
517000
Map Scale: 1:2,460 if printed on A portrait (8.5' x 11") sheet.
0
Feet
0 100 200 400 boa
Map prcject on: Web Mercator Corner caordrnate5. WGS84 Edge arcs: UTM Zone 13N WGS84
35 70
140
517060
517120
Meters
210
USDA Natural Resources Web Soil Survey
al Conservation Service National Cooperative Soil Survey
517180
517180
517240
l 40° 13' 56' N
7/21/2020
Page 1 of 4
40i° 13' 40- N
.••;••• B
. t,-
t
B/D
C
C/D
Hydrologic Soil Group— Weld County, Colorado, Southern Part
(VasquezV)
MAP LEGEND MAP INFORMATION
Area of Interest (AOI) to C
Area of Interest (AOI )
Soils
Soil Rating Polygons
A
r
[1
ND
B
B/D
C
O
O
O
C/D
D
Not rated or not available
Water Features
Streams and Canals
Transportation
• -+ Rails
The soil surveys that comprise your AOI were mapped at
1:24.000.
Warning- Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
C/D Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area A projection that preserves area. such as the
Albers equal-area conic projection, should be used if more
AID accurate calculations of distance or area are required
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 19. Jun 5, 2020
Soil map units are labeled (as space allows) for map scales
D 1:50,000 or larger.
D
Not rated or not available
Soil Rating Lines
`- .r
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
Not rated or not available Date(s) aerial images were photographed: Jul 19, 2018 -Aug
10. 2018
Soil Rating Points
® A
❑ ND
B
O B/D
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
7/21/2020
Page 2 of 4
Hydrologic Soil Group Weld County, Colorado, Southern Part
VasquezV
Hydrologic Soil Group
Map unit symbol
44
45
47
72
Map unit name
Olney loamy sand, 1 to
3 percent slopes
Olney loamy sand, 3 to
5 percent slopes
Olney fine sandy loam,
1 to 3 percent slopes
Vona loamy sand. 0 to 3
percent slopes
Rating
B
B
B
A
Totals for Area of Interest
Description
Acres in AOI
18 1
30
10.7
0.6
32.4
Percent of AOI
55.9%
9.2%
33.2%
1.8%
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive
precipitation from long -duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D. and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential) when
thoroughly wet. These consist mainly of deep, well drained to excessively
drained sands or gravelly sands. These soils have a high rate of water
transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well
drained soils that have moderately fine texture to moderately coarse texture.
These soils have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of
water transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink -swell
potential. soils that have a high water table, soils that have a claypan or clay
layer at or near the surface, and soils that are shallow over nearly impervious
material. These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in
their natural condition are in group D are assigned to dual classes.
100.0%
USDA Natural Resources Web Soil Survey
dam
Conservation Service National Cooperative Soil Survey
7/21/2020
Page 3 of 4
Hydrologic Soil Group Weld County, Colorado. Southern Part VasquezV
Rating Options
Aggregation Method: Dominant Condition
Component Percent Cutoff None Specified
Tie -break Rule: Higher
%,i),\ Natural Resources Web Soil Survey
®s Conservation Service National Cooperative Soil Survey
7/21/2020
Page 4 of 4
Property Maintenance Plan
For a Small -Scale Solar Facility
In Compliance with:
(Section 23-4-1030 H of the Weld County Code)
Case Number: USR2o-0029
Heirs of John F. Leonard
Prepared for:
Weld County Department of Planning Services
1555 North 17th Avenue
Greeley, CO 80631
Prepared by:
SunShare, LLC
Denver, Colorado
J4
4
'�SunShare
COMMUNITY SOLAR
i.o Overview
As a condition of approval for the Site -Specific Development Plan and Use by Special Review
Permit, Weld County required that SunShare prepare a Property Maintenance Plan for the solar
facility, that is to be reviewed and approved by the Weld County Department of Planning
Services The intent of this Property Maintenance Plan is to provide a comprehensive plan for
control of dust, noxious weeds, and any drainage issues that could cause erosion from the solar
facility
1.1 Dust Mitigation During the Construction Phase
Water tankers will be used to help control dust while the construction activities are occurring on
the site During the construction of the facility, SunShare will exercise BMPs to limit fugitive
dust from being airborne and traveling beyond the property lines Dust control efforts will be
monitored bythe site foreman on a regular basis to ensure fugitive dust is adequately controlled
Water spray will be applied, as needed, to unpaved areas during periods of dry weather Care
will be taken not to over -apply water and create mud Vehicle tracking devices will be installed
at truck exit drives, per the requirements of Weld County Vehicles operating on the site during
the construction phase will limit their speed to 15 mph or less, to minimize dust emissions
1.2 Noxious Weed Management
The Colorado Department of Agriculture (CDA) and Weld County, both require landowners to
prevent the spread of State Listed Noxious Weeds Construction activities on the site have the
potential to introduce new noxious weed species to the site, or spread existing species on to or
off of the site This noxious weed management program was developed to prevent further
spread of noxious weeds SunShare will comply with CDA and Weld County regulations through
implementation of this plan Periodic reviews and updates to this plan will be completed as
necessary to keep it current with noxious weed control issues This plan will be implemented
throughout the life of the solar facility
Appropriate management actions will be implemented whenever noxious weed species are
observed growing within the project area The goals of weed management are to
1) Identify and manage noxious weeds within and immediately adjacent to the project
areas to be disturbed and after the area has been reclaimed,
z ) Conduct pre-treatment and post -treatment evaluations, and continue or modify
treatment measures as necessary,
3 ) Minimize the potential for transportation and importation of noxious weed species,
2
4) Educate field personnel in order to encourage compliance with weed management
program goals and assist with identification and control efforts
To prevent or minimize the infestation and spread periodic inspections of the project area during
the beginning, middle, and end of the growing season will evaluate presence or absence, degree
of invasion, and the response of previous treatments SunShare's operational staff will conduct
regular site inspections and ensure implementation of this plan Specific treatment
methodologies and timetables will be developed based on species of concern, location and
extent of the infestation(s), and other pertinent factors
1.2 (a) Noxious Weed Prevention
Noxious weeds are spread through dispersal of seed and/or transport of plant propagules (i e
spores, seeds, roots, etc ) The most effective way to control noxious weeds is to prevent their
introduction into the site in the first place A combination of methods and practices will be
employed to prevent the introduction of weed species and their regeneration within the project
area
The following methods and practices may be employed, either singly or in combination, to
prevent the introduction of weeds into the solar site
1 ) Athorough cleaning of equipment will be conducted before entering the project area
to prevent the introduction of seed and plant propagules from other sites,
z ) Seed mixtures used for revegetation or temporary site stabilization will be free of
noxious weeds,
3) Hay, straw, and/or other materials used for mulch or other purposes will be certified
weed free,
4 ) A periodic inspection will be conducted to identify any new weed infestations that
may have occurred Any new infestations will be scheduled for management before
they become well established and/or spread,
5 ) Communication and coordination with adjacent land holders whose property is
infested with noxious weeds that may threaten the site should occur Establishing
partnerships for weed management within the local area is essential for successful
long-term weed management,
6) Noxious and pest weed infestations that threaten natural and reclaimed areas will be
treated with accepted Integrated Weed Management (IWM) methods These
methods are further discussed below
1.2 (b) Integrated Weed Management (IWM)
An Integrated Weed Management approach will be implemented for treatment of noxious
weeds within the project area An IWM approach enables selection of one or more weed
3
management methods based on site specific environmental conditions and control needs The
following weed management methods will be considered for the project area
1) Cultural — Planting native or desirable plant species for site colonization and
promoting healthy vegetation communities in reclaimed areas Prevent unnecessary
disturbance through precise planning of construction projects and other activities
Prompt revegetation of disturbed areas
z ) Mechanical — Mowing, pulling, disking, and plowing may be used on weedy species
for which these treatments are effective
3) Biological — Introduction of insects or other biologic agents which are known to
inhibit or prevent reproduction of noxious weed species If biological agents are
employed, control methods will be coordinated with the Colorado Department of
Agricultural Insectary in Palisade, Colorado
4) Chemical — Application of appropriate herbicides by a licensed applicator All
herbicides will be applied in accordance with the manufacturer's label and in
accordance with Colorado laws
In some cases, only one control method may be warranted, while in other cases a combination
of control methods may be appropriate Control methods selected will be dependent upon
species of concern, and the location and extent of the infestation
The use of IWM methods will protect pollinators, reduce hazards to wildlife, reduce the
possibility of herbicide resistance, and minimize persistence and mobility of herbicides in the
soil Weed control methods and practices will be applied in a manner that conforms to
applicable federal, state, and local laws
1.2 (b) 1— Cultural Control
Germination and establishment of noxious weeds can be reduced by following accepted
revegetation and vegetation management techniques that favor the growth of desirable plants
These include prompt seeding and revegetation of disturbed areas with appropriate seed mixes,
maintaining optimum fertility and moisture levels, planting at optimum density of pure live
seed, minimizing use of fertilizers, and selecting suitable species for revegetation Minimizing
areas of disturbance and exposed soil prevents opportunities for aggressive species to establish
A revegetation plan has been developed for the site that utilizes native species that are well -
adapted to the site Seeding native species in conjunction with other management practices will
provide some level of competition with noxious weeds, and minimize the opportunity for new
infestations to become established
4
1.2 (b) 2 — Mechanical Control
Mechanical Control of noxious weeds can be an effective tool to physically disrupt noxious weed
growth and seed development A combination of mechanical methods may be used including
tilling or disking, mowing, hand-held weed trimmers, mulching, hand -pulling, hoeing, or
livestock grazing Mechanical weed control practices must be applied with correct timing to
maximize their effectiveness in preventing vegetation development or seed production
Annual weedy species may be readily controlled with mowing or physical removal Perennial
species such as Dalmatian toadflax have extensive root systems For such weed species,
mowing may only control seed production without seriously affecting the plant's survival
Mowing after seed production has occurred may spread the plants Disking or tilling areas
containing perennial noxious species may increase the area of infestation due to root sprouting
In most cases, mechanical control methods used alone are not effective against noxious weed
species
1.2 (b) 3 — Biological Control
Biological control of noxious weeds can be an effective tool to physically disrupt plant growth
and seed development A combination of biological methods may be used including
introduction of insect weed predators and species specific plant diseases Biological weed
control methods and practices will be applied with appropriate timing to maximize their
effectiveness in preventing seed production It must be noted that the use of biological controls
normally does not eradicate an infestation of weeds, rather they are capable of reducing weed
species vigor and reproduction The Colorado Department of Agriculture's Biological Pest
Control Program has on -going biological control programs for several noxious weed species
Note, the use of insect bio-controls typically require large populations of the target weed to
sustain the population of bio-control agents Biological controls should not be expected to
eliminate the entire infestation of a noxious weed, but instead to bring the infestation down to
a more manageable level
1.2 (b) 4 — Chemical Control
Chemical control of noxious and pest weeds can be an effective tool to disrupt plant growth and
seed development Herbicides can kill targeted species, prevent development and/or
germination of noxious weed seed, can be used with minimal disturbance to soils, and in some
cases, can be selective to specific species or groups of plants Herbicides must be applied at the
appropriate time to maximize their effectiveness in preventing seed production, for disrupting
plant establishment and growth, or achieving kill of noxious species To avoid development of
resistance to a particular herbicide through repeated use over prolonged periods of time,
5
herbicides with varying modes of action to be used Also, herbicides will be applied according
to manufacturer's label recommendations (i e application rate, method, and timing) to prevent
development of plant resistance Herbicide selection will be based on weed emergence, timing
of application, past applications, and ground and weather conditions during the applications
Successful IWM begins with an understanding of the target plant species and the environment
within which it grows Next, the physiologic effects of an herbicide on plant growth and
development must be understood Understanding a pesticide's chemical nature is also
important in minimizing impacts to non -target species, the applicator, endangered species, and
pollinators, as well as surface water runoff hazards and leaching into groundwater Every
herbicide label contains information regarding environmental hazards This information will be
evaluated for each herbicide considered for use at the site and herbicides will be selected which
pose minimal to no environmental hazards
All pesticides will be handled with care, and applied by qualified personnel Properly identifying
the weed problem and the most effective chemical control method for use during the plant
growth cycle is critical to effective weed control Equipment will be properly calibrated before
herbicides are applied and appropriate Personal Protective Equipment (PPE) will be used
Empty containers will be disposed of promptly, safely and according with product labeling
Herbicides vary in the amount of time after an application before it is safe to re-enterthe treated
area without protective clothing and equipment The site re-entry time is affected by the rate
of application, size of the area treated and the amount of time to be spent in the field For the
safety of employees and contractors, the Restricted Entry Interval (REI) listed on the herbicide's
label will be followed Appropriate herbicide application records will be maintained as specified
by the CDA
1.2 (c) — Monitoring and Follow -Up
Even with effective weed management strategies, it often takes several seasons to eradicate or
bring weed populations to an acceptable level With well -established infestations, it is likely that
a seed bank has developed in the soil capable of producing new plants for many years An
infestation of weeds can easily re -invade treated areas in one growing season if control and
treatment activities are prematurely curtailed Weed management efforts should be carried out
over an adequate number of growing seasons to realize effective weed management within the
target area
As with all weed management, this multi -season effort is best served by effective
documentation of control efforts and continued vigilance in successive seasons of management
Information can be used to modify treatment priorities and weed management strategies over
time Vigilance is required against new infestations that may be moving into the site These
new sources of infestation may be worked into prevention and management plans as necessary
6
This weed management plan will be modified over time as site conditions change. Weed
management strategies and priorities can be modified as weed infestations change in response
to continued control efforts.
1.3 — Drainage and Erosion Control
Installation of the solar facility will not alter existing drainage patterns or flow rates on the site
and runoff water quality will not be impacted by the solar facility components. Installation of
water quality or detention facilities would require clearing, grubbing, grading and reseeding of
a portion of the site and would likely increase the potential for erosion, sediment transport and
concentrated flow. Accordingly, water quality and detention are not recommended for this
project.
Appropriate temporary (construction -related) erosion and sedimentation control Best
Management Practices (BMPs), will be applied during the construction phase of the project. The
BMPs will be inspected on a regular basis to ensure proper functionality.
1.4 - Signatures
Prepared by:
«s/ertif' /%llr
Richard L. Miller, AICP
Development Manager
7
Site Plan
f
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USE BY SPECIAL REVIEW USRXX-XXXX
4.000 MW -AC (4.826 MW -DC) SOLAR ARRAY PROJECT
A PORTION Of THE WES' /2 Of int NE114 Of SECTION 17. TOWNSHIP ! NCAT.i. RANGE. 66'WEST Of THE 6TH PM
COUNTY Of WELD. STATE Of COLORADO
VASQUEZ V SOLAR
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Weld County, Colorado
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Cover
NOT FOR CONSTRUCTION
- , 10/28/2020
0.411.
T.100
USE BY SPECIAL REVIEW
TRAFFIC NARRATIVE
for
a Medium -Scale Solar Facility
In partial fulfillment of Weld County's Use by Special Review Permit requirements, this Traffic
Narrative has been prepared for the proposed Medium -Scale Solar Facility located west of the
southwest corner of WCR 34 and WCR 29 (the Project). This narrative is intended to provide
traffic -related information and identify potential Project impacts to affected roadways within Weld
County and in and around the Town of Platteville.
The following information is included in this narrative:
• Project Location, Components and Construction Schedule
• Designated Travel Route
• Daily Vehicle Trip Generation
• Conclusions
Project Location, Components and Construction Schedule
Location - The Project will occupy approximately 32.378 acres of the +/- 159.33 acre leased
area (within Weld County Parcel No. 121117000017), located west of the southwest corner of
WCR 34 & WCR 29 in the northeast quarter of Section 17, Township 3N, Range 66W.
Components - The Project generally includes: 4.75 MW (AC) or 4.99 MW (DC) solar energy
conversion system comprised of 13,050 tracker solar modules mounted on steel l -beams;
concrete pad -mounted transformer and interconnect; inverters mounted at the end of array
rows; an access drive with emergency turn around; and perimeter fence with gate.
Construction Schedule — Once the Use by Special Review Permit is finalized, the construction
phase is anticipated to take approximately one hundred and nine (109) days.
Based on this, the following preliminary schedule has been prepared:
• Solar Facility Components First Deliver
• Perimeter Fence Installation
• Solar Panel Foundation Installation
• Racking, Trenching, Wiring
• Solar Panel Installation
• Inspection & Set Meters
Day 1
Day 1 to Day 11
Day 1 to Day 30
Day 30 to Day 64
Day 64 to Day 94
Day 94 to Day 99
...44 410„
) 4_
I SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
• System Testing & Commissioning Day 99 to Day 109
Designated Travel Route
The designated travel route includes: State Highway 85 north to WCR 34, then east
approximately one (1) mile to the Project access drive. The following is a brief description of the
access route roadways.
State Highway (SH) 85 — In the vicinity of Platteville, SH 85 is a four -lane divided highway with a
posted speed limit of 55 mph. The SH 85/WCR 34 intersection is not signalized and has
dedicated right and left-hand turn lanes. The road surface appears to be in good condition.
Project -related traffic is not expected to impact SH 85.
WCR 34 - The one (1) mile segment of WCR 34 included in the travel route is generally a +/-
24' -wide gravel road with varying gravel shoulder width. The posted speed limit is 30 mph in the
vicinity of the Project site. The road surface appears to be in fair condition.
Daily Vehicle Trip Generation and Distribution
Project development may be divided into the following 3 phases: material and equipment
delivery; facility construction; and facility maintenance). The following Table 1 illustrates the
estimated average daily trip generation by vehicle type for each Project phase.
Project
Phase
Vehicle
Type
Estimated
Vehicle
Gross
Weight
Number
of Vehicles
Per Day
Average
Maximum
and
Vehicle Trips
Per Day
(Time)
Equipment
(approx.
Material
1
and
Delivery
week)
Conex
Delivery
Container
Trucks
and
30,000-50,000 lbs
5-10
10-20
Equipment
Trucks
Hauling
20,000-40,000 lbs
0-2
0-4
4
Max — 24/Ave - 16
Facility
Construction
Passenger Vehicles
2,000 to 10,000
lbs
5-12
10-24
(3-4 months)
Fuel
Truck
20,000 to 30,000
lbs
1
2
Material
Delivery
Truck
20,000 to 30,000
lbs
1
a 2
_
-
Max
— 28/Ave - 20
Operations
(ongoing once
operational)
Utility Vehicle
Truck)
(Pickup
2,000 to 10,000 lbs
2 per quarter or less
Quarter/Ave
Max
— 2 per
- 0
As illustrated in Table 1, the majority of traffic generated will occur during the 3 4 month
construction period (Max 28/Ave 20vtpd). This traffic will generally be construction crew
passenger vehicles.
i
•
SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
The majority of heavy truck traffic including Conex container delivery (30-50 Conex
containers/delivery trucks) and equipment (rubber tire loader, pile driver, forklift) delivery, and
pickup will travel to and from the Project between 8:00 AM and noon and 1:00 PM and 4:30 PM.
Project -related traffic during all phases will not be significant during AM and PM peak periods
(7:30 — 9:00 AM and 4:30 — 6:00 PM, respectively).
Conclusions
1. The Project is expected to generate up to 24 vehicle trips per day during material and
equipment delivery (anticipated to be one week at the beginning of the Project and one week at
the end of the Project), 24 vehicle trips per day during the construction phase (3-4 months) and
typically, 2 vehicle trips per quarter for routine maintenance after the system is operational.
2. Project construction is anticipated to begin in January 2021 (material and equipment
delivery) and end in early May 2021 (solar facility start-up and container and equipment
container pick-up). The phase with the greatest amount of traffic (construction phase) is
expected to occur over a 3 to 4 -month period.
3. Daily Project -related truck traffic is not expected to impact AM and PM peak traffic periods.
4. As proposed, the solar facility installation (material/equipment delivery — approximately 1
week, solar facility installation - 3 months and solar facility operations - ongoing) is not
anticipated to create adverse traffic -related impacts on Weld County roads. Based on
anticipated vehicle type and weight (from Table 1), the Project is not anticipated to
degrade/damage Weld County roads.
a�SunShare
COMMUNITY SOLAR
1724 Gilpin Street, Denver, CO 80218 • info@mysunshare.com • 800.793.0786 • MYSUNSHARE.COM
November 30th, 2020
To Whom It May Concern,
My Name is Graham Carr and I manage the farm operations for the property under review today and have done
so for over fifteen years My wife, Paula, is one of the owners Before Paula, I managed this for her Mother,
Patti Wilcox Patti lived in Washington state and was not able to take care of the property from that
distance Likewise, the other property owners, family members were not taking care of the property Patti's
parents, John & Mirth Leonard, originally purchased this property on April 6, 1951, when he was 43 years
old It is my understanding John stopped farming around 1980 John passed away on 5/18/1994 Before I
took over in 2005, the owners had unsuccessfully tried to work with a tenant farmer but for the most part, the
land becomes overrun with noxious weeds The only activity was from oil and gas production The first well
was drilled on 10/1/1975 Six shallow vertical wells were drilled on the property Five of the wells stopped
producing during 1999 The last well stopped production on 1/2010 Five of the wells have been completely
removed and plugged/Abandoned I received notice on 10/5/2020 from Crestone Peak will start the well Plug
& abandon operations As of 11/15/2020, the work had not started, but this is on the schedule for
completion Since we had lost all the shallow vertical wells, I reached out to Kerr-McGee and Anadarko during
2018 in hopes to arrange for a new multi -horizontal Oil & Gas pad to be placed on our property I was told by
Brandon McGraw (Landman) from Anadarko that they were currently in the permitting phase for developing
this area sometime in 2019 There are wells planned to develop NE/4 Sec 17 but will be reached from another
surface parcel, but the wellbores will pass under our property Currently, we are surrounded by horizontal
wellbores on the East, South, and West sides The only remaining open area for wellbores is below our
property The most logical location for a new pad would be on the south end of Section 17 The bores would
have to run North under us and could extend to the center of Section 36 This would give a 1 5 -mile -long
bore The opportunity to develop our property for oil and gas is no longer an option Below is a table showing
the O&G well information
Farming operation
When I took over the farm management, the Olson family was occasionally using the property for growing
feed, but this was hit and miss The property had fallen into poor condition I made numeious attempts to work
with the Olson to encourage them to start working on the property to get it back to quality farmland That failed
so during 2014 I reached out to Gary from Bella Farms I offered Gary free rent for 5 years to offset his cost
for rebuilding the soil and getting the noxious weeds under control This has also been hit and miss and as far
as I know, Gary has only planted once or twice over the last 5 years This is a dryland farm and we do not own
any water rights The Spear canal and Irrigation ponds located on the property to our South is on Olson family
land, so we do not have access to that water In March of 2019, Gary and I started discussing the possibility of
installing center pivot irrigation, but this is still limited due to lack of water The only available water would be
applying effluent water from the Bella farms dairy holding ponds which are located to the Northwest of our
location This is approximately one mile away Gary told me that this would only be used once or twice a
season and this would not be suitable for continuous use Gary did place a 6" pipeline under WCR34 coming
from the S/E corner of his property into our N/W corner The intent was to tie into this for irrigation so he
could hopefully plant yearly crops To date, nothing has happened, and a center pivot irrigation system has not
been installed He does not plan on farming the corners and at best this might produce some dryland crops
Solar Farming option
The opportunity to generate income from the property has been severely restricted now that the oil & gas wells
have been shut down and the fact that we do not have access to irrigation Even with the possible use of
effluent water this would still be considered dryland farming and would only pay $20 00 per acre So early this
year I started to investigate other options to improve the owner's income That is when I started working with
Page 1 of 3
November 30th, 2020
Sun Share We started working on layouts to allow Sun Share to build a usable solar array while still allowing
Gary the opportunity to set up a center Pivot irrigation system The proposed plan achieves this goal and gives
Bella Farms the opportunity to set up a 270° center pivot system Allowing Bella farms to continue to grow
feed for their dairy cows and Sun Share to harvest the sun's energy The owners are excited not only to have
the opportunity to additional receive income but to also put the land to good use by providing electricity for the
surrounding community
The Owners Group
The owners are direct descendants from John & Mirth Kugel John only had one daughter, Patty (Leonard)
Wilcox from a previous marriage John later married Mirth but they never had any children John and Mirth set
it up so Mirth's Nephews and niece would also become part owners upon their passing The owners of six
family lines Three are from John and Three from Mirth Johns daughter Patti passed away during 2016 and
she left her shares to Daughters, Cynthia Walters, Paula Carr, and grandson Troy Skogmo For Mirth, it is Gary
Kugel, Brain Kugel, and Key (Kugel) Sachs Together this family makes up the owner's group I am sad to say
that my wife Paula just passed away on 10/2020 from brain cancer Her two children will now become part
owners of the farm It was John and Mirth's di earn that this property would continue to piovide for then
airs This project will allow the farm to keep producing income while helping the local dairy and community
Paula Carr
I would like to share some information about my wife Paula Paula was an amazing woman and so full of
life She loved her grandparents and adored her grandfather Paula grew up in Washington but would spend
many summers with her grandparents John and Mirth lived in their home in Longmont but owned four
different farm properties John would commute to the farms to work on them He would grow crops every
single year and this was their only source of income John was also a pilot from WW2 and continued to fly
throughout his life John and Mirth belong to the Flying farmer's group and enjoyed fly -ins every year with
other farmers He kept his plane just South of the Platteville farm at a private airstrip Paula uses to enjoy
packing lunch for John Mirth would take Paula and her sisters out to the farms for picnics with John Later as
Paula become a young adult, she would continue to spend time lots of time with her grandparents She even
moved to Colorado to be closer to them John was also was a private pilot instructor and started teaching Paula
to fly Paula's mother Patti also adored her father and spent many wonderful months over the years in
Longmont and on the farms When Patti asked me to help manger the properties her only request was that I try
to get the farms back into condition but also work with the oil companies When Patti passed away, Paula asked
me if I would continue working the farms Paula knew we had serious problems with trying to keep the
Platteville farm in the crop We did look at the possibility of trying to subdivide the farm into horse
properties She did not really care for this because she wanted to see it stay as farmland Knowing we did not
have the capital or farming experience, we knew we could not farm the property My career as being in
residential/commercial construction, which is why we looked at developing the land So, when I approached
Paula about setting up a Solar Farm, she was excited She said to me that's he loved the idea that we were still
farming because this would farm the sun's rays Her exact woids were "The sun used to kiss granddads wheat
now it will kiss the solar panels" I got her point, we are still farming but in a high tech way More important is
we keep the property generating income for the owner's group
Page 2 of 3
November 30`h, 2020
OIL AND GAS WELL STATUS
Well Name
API #
Operator
Spud Date
Last prod
Status
Status
Date
LEONARD #1
05-123-
08557
CRESTONE
PEAK
RESOURCES
10/1/1975
1/1/1999
PR
8/1/2020
Leonard L17-7
05-123-
15251
KERR
MCGEE OIL
& GAS
10/4/1991
1/1/1999
PA
6/21/2018
Leonard L17-2
05-123-
15250
KERR
MCGEE OIL
& GAS
11/1/1991
1/1/1999
PA
1/6/2015
HSR-Vollmer 8-
17
05-123-
15658
KERR
MCGEE OIL
& GAS
4/20/1992
1/1/1999
PA
6/6/2018
HSR-Spits 1-17
05-123-
15657
KERR
MCGEE OIL
& GAS
4/26/1992
1/1/1999
PA
11/21/2018
Leonard L 17-18
05-123-
29890
KERR
MCGEE OIL
& GAS
12/7/2009
1/1/2010
PA
3/8/2016
Page 3 of 3
Chris Gathman
From:
Sent:
To:
Subject:
Richard Miller <rmiller@mysunshare corn>
Monday, November 30, 2020 8 50 AM
Chris Gathman, Amanda Mack
USR20-0029 - Water Information
Caution This email originated from outside of Weld County Government Do not click links or open attachments unless you recognize the sender and know the content is safe
Hi Chris,
From recent discussions with one of the property owners, we have Just found out that the property owners do not have water rights for farm irrigation Our USR
drawing incorrectly shows an "existing irrigation pivot" We realize that the staff comments have been sent to the Planning Commission members and that this
is something we will need to clarify at the hearing Amanda Mack will be handling the Planning Commission presentation for SunShare Amanda & I will call you
today so that I can introduce you to her and to provide more information about the water situation
Thanks,
Richard
1
Hello