HomeMy WebLinkAboutLEGACY AUTO - FDP - FDP170014 - SUBMITTAL DOCUMENTS - ROUND 2 - STORMWATER MANAGEMENT PLANStormwater Management Plan
for
Legacy Auto FDP
Fort Collins, Colorado
June 20, 2017
Prepared for:
Legends Holdings
Gary Farkus
1845 N. College Ave.
Fort Collins, CO 80524
Prepared by:
Wohnrade Civil Engineers, Inc.
11582 Colony Row
Broomfield, Colorado 80021
Phone: (720)259-0965, Fax: (720)259-1519
Project Number: 1707.00 - LEG
I hereby certify that this Stormwater Management Plan for the Legacy Auto FDP
was prepared under my direct supervision in accordance with the State of Colorado
storm drainage design and technical criteria, for the Owners thereof.
_____________________________________ 6/20/17______________
Mary B. Wohnrade, P.E. Date:
Registered Professional Engineer
State of Colorado No. 30325
(Affix Seal)
TABLE OF CONTENTS
VICINITY MAP
Page
I. SITE DESCRIPTION
1.1 Introduction 1
1.2 Site Location and Description 1
1.3 Construction Documents 1
1.4 Construction Activities 1
1.5 Sequence of Construction Activities 2
1.6 Area of Site and Disturbed Area 2
1.7 Runoff Information 2
1.8 Existing Vegetation/Ground Cover 2
1.9 Potential Pollution Sources 3
1.10 Non-Stormwater Components of Discharge 3
1.11 Receiving Water 3
II. BMPs FOR STORMWATER POLLUTION PREVENTION
2.1 Site Map 3
2.2 BMP’s Before and During Construction 4
2.3 Post Construction BMP's 6
2.4 Materials Handling and Spill Prevention 6
III. FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT
3.1 Measures to Achieve Final Stabilization 6
IV. INSPECTION AND MAINTENANCE PROCEDURES
4.1 Inspection Procedures 7
4.2 Maintenance Procedures 8
4.3 Record keeping 8
4.4 Revising BMP’s and the SWMP 8
V. AIR QUALITY STATIONARY SOURCE PERMITTING
5.1 Regulations 8
5.2 APEN - Application for Construction Permit 8
5.3 Fugitive Dust Control Plan for Land Development 9
REFERENCES 10
APPENDICES
Appendix A Erosion and Sediment Control Inspection List
Erosion and Sediment Control Escrow Calculations
Construction Sequence Chart
CDPHE Stormwater Discharge Permit
PLANS
Sheet 1 Stormwater Management Plan (SWMP) Pre-Disturbance Plan
Sheet 2 Stormwater Management Plan (SWMP) Interim Plan
Sheet 3 Stormwater Management Plan (SWMP) Final Stabilization Plan
Stormwater Management Plan
for
Legacy Auto FDP
Fort Collins, Colorado
I. SITE DESCRIPTION
1.1 Introduction
This Stormwater Management Plan (SWMP) has been prepared in compliance with the
Colorado Discharge Permit System (CDPS) for stormwater discharges associated with
construction activities, from the Colorado Department of Public Health and Environment,
Water Quality Control Division (Division). A copy of this SWMP must be kept onsite, in
order to be readily available to the contractor, and to facilitate its review by the City of
Fort Collins staff during an inspection.
The objective of this SWMP is to identify Best Management Practices (BMPs), which
when implemented, will meet the terms and conditions of the CDPS.
The SWMP Administrator for this Stormwater Management Plan will be Adam Yee of
Evergreen Industrial, who will be the project superintendent during construction.
1.2 Site Location and Description
The site is located in the southeast quarter of Section 35, Township 8 North, Range 69
West of the 6th Principal Meridian, County of Larimer, City of Fort Collins, Colorado.
The property is bounded by commercial properties on the west and south, N. College
Avenue on the east, and the Larimer and Weld Canal to the north (See Vicinity Map).
The Legacy Auto property is approximately 2.65 acres, half of which is developed. The
developed portion of the site is located on the east side of the property adjacent to N.
College Avenue, and currently contains an existing building, paved and gravel parking
areas, and outdoor vehicle display areas.
1.3 Construction Documents
The Grading and Erosion Control Plan that accompanies this Stormwater Management
Plan (SWMP) is contained in the construction plans entitled, Legacy Tractor and Auto
Sales FDP, which have been prepared by Wohnrade Civil Engineers, Inc.
1.4 Construction Activity
Proposed improvements to the site consist of the following:
• Construction of an approximately 10,500 sf single-story addition, and interior-exterior
renovations to the existing building;
• Installation of utilities including: a new sanitary sewer service line; new water main
extension to serve a new fire hydrant; gas, fiber optic, and telephone service lines,
and underground power lines;
• Construction of new paved parking areas, and drives;
• Construction of a new stormwater detention and water quality facility.
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June 20, 2017
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1.5 Sequence of Major Activities
Construction activities are expected to commence during the second week in July,
2017. Demolition will begin with the removal of existing asphalt paving areas, and
removal of existing above and below ground dry utilities. Activities continue with the
construction of the new single-story addition, and installation of onsite utilities, followed
by construction of the parking areas and drives.
Upon completion of construction, all disturbed areas will be stabilized with permanent
vegetation. Disturbed areas will be seeded with a native seed mix, which has been
specified on the Landscape Plan, which is contained in the project construction plans.
1.6 Area of Site and Disturbed Area
The total area of the Legacy Auto site is approximately 2.65 acres. Roughly 2.32 acres
of the site are expected to be disturbed as part of this project. There will be a minor
amount offsite disturbance as part of the water main extension in N. College Avenue.
1.7 Runoff Information
Soils information was obtained from the soils report for the Legacy Auto project, dated
September 6, 2011 (See Reference 1). Six exploratory test holes were placed within
the approximate limits of the proposed addition, and proposed site improvements. The
subsurface conditions encountered generally consisted of 3 to 6" of topsoil and
vegetation, fill soils consisting of clayey sand and gravel, underlain by natural brown
lean clay with sand. Groundwater was encountered during drilling at depths ranging
from 6.5- to 12.5'.
Stormwater runoff calculations have been performed as part of this project, and
developed coefficients have been derived. The 100-yr developed runoff coefficients
vary from 0.51 to 0.59.
Soil erosion potential prior to development is moderate due to existing vegetation, and
paved surfaces on the project site. Soil erosion potential subsequent to development
will remain the same as a result of site stabilization by re-vegetation and new paved
surfaces.
1.8 Existing Vegetation/Ground Cover
Roughly 75% of the existing site, other than buildings and paved areas, is vegetated
with native grasses, primarily on the northern and western portions of the property. The
density of the existing vegetation is estimated to be roughly 90%.
2
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1.9 Potential Pollution Sources
Potential pollution sources include the stripping and stockpiling of topsoil, and areas
disturbed by the site demolition. Other sources include vehicle tracking of sediment
onto N. College Avenue, and the concrete washout area. BMPs to control these
sources are described further in paragraph 2.2.
No additional known potential pollution sources are expected as part of the proposed
development, subsequent to construction. During construction activities, the potential
will exist for fuel leaks and spills from heavy excavation and earthmoving equipment.
1.10 Non-Stormwater Components of Discharge
There are no known springs or irrigation return flows which would contribute to non-
stormwater components of discharge from the site. The potential for dewatering during
construction is moderate based on information contained in the soils report, which
indicates that groundwater was encountered at depths ranging from 6.5' to 12.5'.
Should groundwater be encountered, the contractor shall obtain a Construction
Dewatering Industrial Wastewater Discharge permit from the Colorado Department of
Public Health and Environment.
1.11 Receiving Water
The existing site drains generally from northeast to southwest, where stormwater runoff
is retained onsite due to the existing topography. The ultimate receiving water for all
stormwater runoff from the Legacy Auto site is the Cache La Poudre River. Under post-
project conditions, stormwater will be detained and released through a pond outlet pipe
that conveys stormwater runoff to an existing storm sewer located in N. College
Avenue. The storm sewer then conveys runoff to the Cache La Poudre River, which is
located approximately 1.2 miles to the south.
The Larimer and Weld Canal is located directly adjacent to the site on the north. The
ditch and appurtenant access road are higher in elevation than the Legacy Auto site.
Stormwater runoff drains from the existing ditch access road towards the project site.
II. BMP’S FOR STORMWATER POLLUTION PREVENTION
2.1 Site Map
Three Site Maps have been prepared for the Initial, Interim, and Final stages of the
project.
The Pre-disturbance Site Map includes temporary erosion control measures to be
Legacy Auto FDP Wohnrade Civil Engineers, Inc.
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installed prior to earth moving activities. This map has been prepared by the design
engineer, and has been included in this Stormwater Management Plan.
The Interim Site Map includes structural and non-structural BMP’s to be installed during
site grading, and construction of site improvements including: the building addition;
parking areas and drives, and onsite detention pond. This plan has been prepared by
the design engineer, and has been included in this Stormwater Management Plan.
The Final Stabilization Map has been prepared by the design engineer, and includes
permanent stormwater quality measures for final stabilization of the site. This plan has
been included in this Stormwater Management Plan.
Construction details for structural BMP’s can be found on the General Details sheets of
the civil construction plans for the proposed project.
2.2 BMPs Before and During Construction
Construction activities inherently produce several kinds of pollutants which may lead to
stormwater contamination. The primary concern at construction sites is sediment
transport. Best Management Practices (BMPs) describe a wide range of management
procedures, schedules of activities, prohibitions on practices, and other management
practices. BMPs include operating procedures, treatment requirements, and practices
to control site runoff, and drainage from materials storage. BMPs are also designed to
prevent or control stormwater pollutants before it has a chance to affect receiving
streams.
There are two basic types of BMPs, structural and non-structural. Structural BMPs are
generally intended to minimize erosion and sediment transport, and include physical
processes. Non-Structural BMPs are mainly definitions of operational or managerial
techniques, and generally address temporary and permanent vegetative stabilization,
and preservation of existing mature vegetation.
Structural BMPs that will be implemented prior to construction activities include the
following:
Vehicular Tracking Control Equipment and vehicles will be allowed to enter the site
only at the designated entrance, which will be equipped with a stone stabilized pad.
This will minimize potential transport of mud by vehicles or runoff. A tracking pad will be
constructed as shown on the Stormwater Management Plan (SWMP) Pre-Disturbance
Plan (Sheet 1 of 3, attached).
Rock Sock Rock socks are intended to trap sediment contained in stormwater runoff
that flows into roadways as a result of construction activities. Rock socks will be placed
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at regular intervals in the curb flowline to help reduce sediment loading to adjacent
storm sewer inlets. Rock socks are located in the gutter flowline near the existing curb
inlets located on the west side of N. College Avenue. Since the entire property drains to
an existing depression in the southwest corner of the site, the proposed rock socks are
an added measure of protection.
Non-Structural BMPs that will be implemented during construction activities include
the following:
Dust Suppression Wind erodes soil and transports sediment offsite where it may be
washed into receiving water during the next rainstorm. Disturbed areas will be sprinkled
with water until wet, as required, to prevent sediment transport.
Preservation of Natural Vegetation This practice is used as a permanent control
measure, and provides a natural buffer zone. The contractor should ensure that
existing vegetation is preserved where possible, and that disturbed areas are stabilized
as soon as practical.
Structural BMP's that will be implemented during construction activities include the
following:
Concrete Washout Equipment and vehicles used to handle concrete will be cleaned at
a designated area selected by the contractor. This area will be clearly marked and
maintained by the contractor. Once the concrete washout area is retired, all dried
concrete will be removed and hauled offsite for disposal. One concrete washout area
have been designated in the Stormwater Management Plan (SWMP) Interim Plan
(Sheet 2 of 3, attached).
Inlet Protection Storm drain inlet protection is a filtering measure placed around any
inlet or culvert to trap sediment, and prevents sediment from entering inlet structures. A
sediment control log will be installed at the upstream end of the pond outlet structure to
prevent debris from blocking the water quality orifices and screen. Gravel inlet
protection will also be placed at the existing grated inlet on the Lamplighter property.
Sediment Control Logs Sediment control logs or, straw wattles, are used as a sediment
barrier to intercept sheet flow runoff from disturbed areas. A sediment control log will be
installed at the upstream end of the detention pond outlet structure as inlet protection.
Sediment control logs will also be placed around the base of the topsoil stockpile area.
The above structural and non-structural BMP’s are shown on the Stormwater
Management Plan (SWMP) Interim Plan (Sheet 2 of 3, attached).
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Stormwater Management Plan
June 20, 2017
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2.3 Post Construction BMPs
Stabilization measures will be initiated as soon as practicable in portions of the site
where construction activities have ceased. The following BMPs will be used after
construction is complete:
Outlet Protection Scour Stop transition mats will be provided at the outlet of the two
valley pans, and at the pond overflow weir to dissipate the velocity of concentrated
stormwater flows, and prevent scour.
Seed/Sod/Erosion Control Blankets
Areas which have been disturbed by construction will be revegetated using a native
seed mix as specified on the Landscape Plan. Permanent seeding has been specified
in the areas throughout the site, including cut slopes and the detention/water quality
pond. A Landscape Plan has been prepared for the project, and includes landscape
areas surrounding the building, and adjacent to the public right-of-way.
The above post construction BMPs are shown on the Stormwater Management Plan
(SWMP) Final Stabilization Plan (Sheet 3 of 3, attached).
2.4 Materials Handling and Spill Prevention
There will be no significant use of chemicals, fuels or other similar materials handling
related to construction activities at the site, nor will these materials will be stored on site.
Proper precautions to be followed for spill containment are outlined in the Urban
Drainage Criteria Manual, Volume 3, Structural Best Management Practices, Chapter
12.0, Spill Containment and Control.
III. FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT
3.1 Measures to Achieve Final Stabilization
Final stabilization is achieved when all soil disturbing activities at the site have been
completed, and uniform vegetative cover has been established with a density of at least
seventy (70) percent of pre-disturbance levels, or equivalent permanent, physical
erosion reduction methods have been employed.
As soon as practicable after construction activities have ceased, permanent stabilization
should commence to prevent further erosion of soil from disturbed areas. All disturbed
areas (with the exception of paved and building areas) should be permanently stabilized
once construction activities have ceased.
Stormwater management controls to prevent or control pollution of stormwater after
construction include: permanent seeding, landscape areas, and paved surfaces.
Legacy Auto FDP Wohnrade Civil Engineers, Inc.
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June 20, 2017
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All temporary erosion and sediment control measures shall be removed and disposed of
within 30 days after final site stabilization is achieved, or after the temporary measures
are no longer necessary.
IV. INSPECTION AND MAINTENANCE PROCEDURES
4.1 Inspection Procedures
Under the Term and Conditions of Section 5 of the CDPS General Permit, the permittee
will perform inspections of the storm drainage system at least once every 14 calendar
days, and within 24 hours of the end of any storm event, including but not limited to rain
or snowmelt, which results in water or sediment being transported across the site during
active construction. Inspections will occur at least once every month when all
construction activities are completed.
The permittee will designate a qualified person, or persons, to perform the following
inspections:
1) Disturbed areas and areas used for storage of materials that are exposed
to precipitation will be inspected for evidence of, or the potential for,
pollutants entering the drainage system.
2) Erosion and sediment control measures identified in this SWMP will be
observed to ensure that they are operating correctly.
3) Where discharge locations or points are accessible, they will be inspected
to ascertain whether erosion control measures are effective in preventing
significant impacts to receiving waters.
4) Locations where vehicles enter or exit the site will be inspected for
evidence of off-site sediment tracking.
Based on the results of the inspection, BMPs which are identified in this SWMP may be
revised as required, and as soon as practicable following the inspection.
The inspector will complete an Erosion and Sediment Control Inspection List (see
attachment, Appendix A) for each inspection performed. The operator will keep a
record of inspections to be made available upon request by the Colorado Water Quality
Control Division. The inspection reports will be kept on site and a copy of each
inspection report will be provided to the local and/or state agencies as requested.
Legacy Auto FDP Wohnrade Civil Engineers, Inc.
Stormwater Management Plan
June 20, 2017
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4.2 Maintenance Procedures
During construction activities, every effort will be made to prevent migration of sediment
from the site. Erosion and sediment control measures must be inspected regularly, as
described in Section 4.1. All erosion and sediment control measures must be
maintained in an effective operating condition.
Damage to erosion and sediment control systems caused by construction traffic shall be
repaired immediately by the contractor. The contractor is responsible for collecting and
disposing of all sediment and waste materials in an appropriate manner.
All maintenance activities will be performed as indicated in the manufacturer’s
specifications, or other sources determined to be acceptable.
4.3 Record keeping
Record keeping is an important component of the SWMP. Keeping records of spills, leaks,
SWMP implementation, etc. is a requirement of the general permit. Enforcement actions,
including fines, could result if records are not adequate. A logbook will be maintained at
the site for inspection reports, maintenance records, spill response, BMP revisions, weather
conditions, training, correspondence, or any other records pertaining to implementation of
the SWMP during construction.
4.4 Revising BMP’s and the SWMP
The SWMP is a “living document” that is continuously being reviewed and modified to
reflect changing site conditions. The SWMP must be modified to reflect actual field
conditions, and documented according to the procedure outlined in paragraph 4.3.
V. AIR QUALITY STATIONARY SOURCE PERMITTING
5.1 Regulations
The Colorado Department of Public Health and Environment, Air Quality Control
Commission, Regulation Number 3, states the requirements for stationary source
permitting, and air pollution emission notice requirements. Part A, Paragraph II.D.1.
specifies exemptions from Air Pollution Emission Notice Requirements. Paragraph II.D.1.j.
pertains to disturbance of surface areas for purposes of land development. Disturbance
to sites which do not exceed twenty-five (25) contiguous acres, and do not exceed six
months in duration are exempt for the requirements of Regulation Number 3.
5.2 Air Pollutant Emission Notice (APEN) - Application for Construction Permit
Disturbance of surface areas for purposes of land development, that exceed twenty-five
(25) contiguous acres, or exceed six months in duration will be required to complete an Air
Pollution Emission Notice (APEN) and Application for Construction Permit.
Legacy Auto FDP Wohnrade Civil Engineers, Inc.
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June 20, 2017
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5.3 Fugitive Dust Control Plan for Land Development
The Colorado Department of Public Health and Environment, Air Quality Control
Commission, Regulation Number 1, states the requirements for emission control for
particulate matter, smoke, carbon monoxide, and sulfur oxides. Regulation 1 requires that
a fugitive dust control plan be submitted by applicants whose activity results in fugitive dust
emissions.
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Stormwater Management Plan
June 20, 2017
Page 10
REFERENCES
1) Geotechnical Exploration Report, Legacy Auto, Fort Collins, Colorado,
prepared by Soilogic Inc., September 6, 2011..
2) Urban Storm Drainage Criteria Manual, Urban Drainage and Flood Control
District, Volume 3, November, 2015.
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STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES APPLICATION
COLORADO DISCHARGE PERMIT SYSTEM (CDPS)
PHOTO COPIES, FAXED COPIES, PDF COPIES OR EMAILS WILL NOT BE ACCEPTED.
For Applications submitted on paper - Please print or type. Original signatures are required.
All items must be completed accurately and in their entirety for the application to be deemed complete. Incomplete applications will not be processed
until all information is received which will ultimately delay the issuance of a permit. If more space is required to answer any question, please attach
additional sheets to the application form. Applications or signature pages for the application may be submitted by mail or hand delivered to:
Colorado Department of Public Health and Environment, 4300 Cherry Creek Drive South, WQCD-P-B2, Denver, CO 80246-1530
For Applications submitted electronically
Please note that you can ONLY complete the feedback form by downloading it to a PC or Mac/Apple computer and opening the Application with Adobe
Reader or a similar PDF reader. The form will NOT work with web browsers, Google preview, Mac preview software or on mobile devices using iOS or
Android operating systems.
If application is submitted electronically, processing of the application will begin at that time and not be delayed for receipt of the signed document.
Any additional information that you would like the Division to consider in developing the permit should be provided with the application. Examples
include effluent data and/or modeling and planned pollutant removal strategies.
Beginning July 1, 2016, invoices will be based on acres disturbed.
DO NOT PAY THE FEES NOW – Invoices will be sent after the receipt of the application.
Disturbed Acreage for this application (see page 4)
Less than 1 acre ($83 initial fee, $165 annual fee)
1-30 acres ($175 initial fee, $350 annual fee)
Greater than 30 acres ($270 initial fee, $540 annual fee)
Responsible Person (Title):
PERMIT INFORMATION
Reason for Application: NEW CERT RENEW CERT EXISTING CERT#
Applicant is: Property Owner Contractor/Operator
A. CONTACT INFORMATION - *indicates required
* PERMITTED ORGANIZATION FORMAL NAME:
1) * PERMIT OPERATOR - the party that has operational control over day to day activities - may be the same as owner.
Currently Held By (Person): FirstName: LastName:
Telephone: Email Address:
Organization:
Mailing Address:
City: State: Zip Code:
Per Regulation 61 : All reports required by permits, and other information requested by the Division shall be signed by the permittee or by a duly
authorized representative of that person. A person is a duly authorized representative only if:
(i) The authorization is made in writing by the permittee
(ii) The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or
activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or
an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative
may thus be either a named individual or any individual occupying a named position); and
(iii) The written authorization is submitted to the Division
SW Construction Application for: page 1 of 5
ASSIGNED PERMIT NUMBER
_____________________________
Date Received _____/_____/_____
MM DD YYYY
Revised: 3-2016
✔
✔
✔
Evergreen Industrial
Senior Project Manager
Adam Yee
208.869.8292 ayee@evergreen-ind.com
Evergreen Industrial
206 E 4th Street; Suite 210
Loveland CO 80557
Evergreen Industrial 05/11/2017
Responsible Person (Title):
2) OWNER - party has ownership or long term lease of property - may be the same as the operator.
Currently Held By (Person): FirstName: LastName:
Telephone: Email Address:
Organization:
Mailing Address:
City: State: Zip Code:
Same as 1) Permit Operator
Per Regulation 61 : All reports required by permits, and other information requested by the Division shall be signed by the permittee or by a duly
authorized representative of that person. A person is a duly authorized representative only if:
i. The authorization is made in writing by the permittee.
ii. The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or
activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an
individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus
be either a named individual or any individual occupying a named position); and
iii. The written authorization is submitted to the Division.
Responsible Person (Title):
Currently Held By (Person): FirstName: LastName:
Telephone: Email Address:
Organization:
Mailing Address:
City: State: Zip Code:
Same as 1) Permit Operator
4) *BILLING CONTACT if different than the permittee.
3) *SITE CONTACT local contact for questions relating to the facility & discharge authorized by this permit for the facility
Responsible Person (Title):
Currently Held By (Person): FirstName: LastName:
Telephone: Email Address:
Organization:
Mailing Address:
City: State: Zip Code:
Same as 1) Permit Operator
SW Construction Application for: page 2 of 5
Responsible Person (Title):
5) OTHER CONTACT TYPES (check below) Add pages if necessary:
Currently Held By (Person): FirstName: LastName:
Telephone: Email Address:
Organization:
Mailing Address:
City: State: Zip Code:
Environmental Contact
Inspection Facility Contact
Consultant
Compliance Contact
Stormwater MS4 Responsible Person
Stormwater Authorized Representative
✔
Senior Project Manager
Adam Yee
208.869.8292 ayee@evergreen-ind.com
Evergreen Industrial
206 E 4th Street; Suite 210
Loveland CO 80557
✔
Senior Project Manager
Adam Yee
208.869.8292 ayee@evergreen-ind.com
Evergreen Industrial
206 E 4th Street; Suite 210
Loveland CO 80557
B) PERMITTED PROJECT/FACILITY INFORMATION
Latitude
Project/Facility Name
Street Address or Cross Streets
(e.g., Park St and 5 Ave; CR 21 and Hwy 10; 44 Ave and Clear Creek) ; A street name without an address, intersection, mile marker, or other
identifying information describing the location of the project is not adequate. For linear projects, the route of the project should be described as
best as possible using the starting point for the address and latitude and longitude – more clearly defined in the required map )
Facility Latitude/Longitude - List the latitude and longitude of the excavation(s) resulting in the discharge(s). If the exact soil disturbing location(s)
are not known, list the latitude and longitude of the center point of the construction project. If using the center point, be sure to specify that it is
the center point of construction activity. The preferred method is GPS and Decimal Degrees.
. Longitude
Decimal Degrees (to 5 decimal places)
.
Decimal Degrees (to 5 decimal places)
(e.g., 39.70312°, 104.93348°)
This information may be obtained from a variety of sources, including:
• Surveyors or engineers for the project should have, or be able to calculate, this information.
• U.S. Geological Survey topographical map(s), available at area map stores.
• Using a Global Positioning System (GPS) unit to obtain a direct reading.
• Google - enter address in search engine, select the map, right click on location, and select “what’s here”.
Note: the latitude/longitude required above is not the directional degrees, minutes, and seconds provided on a site legal description to define
property boundaries.
C) MAP (Attachment) If no map is submitted, the application cannot be submitted.
Map: Attach a map that indicates the site location and that CLEARLY shows the boundaries of the area that will be disturbed. A vicinity map is not
adequate for this purpose.
Legal description: If subdivided, provide the legal description below, or indicate that it is not applicable (do not supply Township/Range/Section
or metes and bounds description of site)
Subdivision(s): Lot(s): Block(s)
OR Not applicable (site has not been subdivided)
SW Construction Application for: page 3 of 5
City: County: Zip Code:
D) LEGAL DESCRIPTION - only for Subdivisions
Total area of project disturbance site (acres):
E) AREA OF CONSTRUCTION SITE - SEE PAGE 1 - WILL DETERMINE FEE
Note: aside from clearing, grading and excavation activities, disturbed areas also include areas receiving overburden (e.g., stockpiles), demolition areas, and areas
with heavy equipment/vehicle traffic and storage that disturb existing vegetative cover.
Part of Larger Common Plan of Development or Sale, (i.e., total, including all phases, filings, lots, and infrastructure not covered by this application)
Provide both the total area of the construction site, and the area that will undergo disturbance, in acres.
Commercial Development
Non-structural and other development (i.e. parks, trails, stream realignment, bank stabilization, demolition, etc.)
F) NATURE OF CONSTRUCTION ACTIVITY
Check the appropriate box(es) or provide a brief description that indicates the general nature of the construction activities. (The full description of activities must be
included in the Stormwater Management Plan.)
Residential Development
Highway and Transportation Development
Pipeline and Utilities (including natural gas, electricity, water, and communications)
Oil and Gas Exploration and Well Pad Development
Legacy Tractor and Auto Sales Final Development Plan
1845 N. College Ave
Fort Collins Larimer 80524
40 61211 105 07694
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2.32
✔
Evergreen Industrial 05/11/2017
SW Construction Application for: page 4 of 5
G) ANTICIPATED CONSTRUCTION SCHEDULE
Construction Start Date: Final Stabilization Date:
• Construction Start Date - This is the day you expect to begin ground disturbing activities, including grubbing, stockpiling, excavating, demolition,
and grading activities.
• Final Stabilization Date - in terms of permit coverage, this is when the site is finally stabilized. This means that all ground surface disturbing
activities at the site have been completed, and all disturbed areas have been either built on, paved, or a uniform vegetative cover has been
established with an individual plant density of at least 70 percent of pre-disturbance levels. Permit coverage must be maintained until the site is
finally stabilized. Even if you are only doing one part of the project, the estimated final stabilization date must be for the overall project.
If permit coverage is still required once your part is completed, the permit certification may be transferred or reassigned to a new responsible
entity(s).
H) RECEIVING WATERS (If discharge is to a ditch or storm sewer, include the name of the ultimate receiving waters)
Immediate Receiving Water(s):
Ultimate Receiving Water(s):
Identify the receiving water of the stormwater from your site. Receiving waters are any waters of the State of Colorado. This includes all water courses, even if they
are usually dry. If stormwater from the construction site enters a ditch or storm sewer system, identify that system and indicate the ultimate receiving water for the
ditch or storm sewer. Note: a stormwater discharge permit does not allow a discharge into a ditch or storm sewer system without the approval of the owner/
operator of that system.
July 19, 2017 January 9, 2018
Local storm sewer
Cache LaPoudre River
Evergreen Industrial 05/11/2017
I) SIGNATURE PAGE
STORMWATER MANAGEMENT PLAN CERTIFICATION
Ink Signature
For Docusign
Electronic Signature
1. You may print and sign this document and mail the hard copy to the State along with required documents (address on page one).
2. Electronic Submission Signature
You may choose to submit your application electronically, along with required attachments. To do so, click the SUBMIT button below which will direct you, via
e-mail , to sign the document electronically using the DocuSign Electronic Signature process. Once complete, you will receive via e-mail, an electronically
stamped Adobe pdf of this application. Print the signature page from the electronically stamped pdf, sign it and mail it to the WQCD Permits Section to complete
the application process (address is on page one of the application).
• The Division encourages use of the electronic submission of the application and electronic signature. This method meets signature requirements as
required by the State of Colorado.
• The ink signed copy of the electronically stamped pdf signature page is also required to meet Federal EPA Requirements.
• Processing of the application will begin with the receipt of the valid electronic signature.
By checking this box “I certify under penalty of law that a complete Stormwater Management Plan, as described in ƚŚĞƐƚŽƌŵǁĂƚĞƌŵĂŶĂŐĞŵĞŶƚƉůĂŶŐƵŝĚĂŶĐĞ,
has been pre-pared for my activity. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering
the information, the Stormwater Management Plan is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are
significant penalties for falsely certifying the completion of said SWMP, including the possibility of fine and imprisonment for knowing violations.”
Date:
Signature of Legally Responsible Person or Authorized Agent (submission must include original signature)
Name (printed) Title
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief, true, accurate and complete.
I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
“I understand that submittal of this application is for coverage under the State of Colorado General Permit for Stormwater Discharges Associated with Construction
Activity for the entirety of the construction site/project described and applied for, until such time as the application is amended or the certification is
transferred, inactivated, or expired.” [Reg 61.4(1)(h)]
DO NOT INCLUDE A COPY OF THE STORMWATER MANAGEMENT PLAN
DO NOT INCLUDE PAYMENT—AN INVOICE WILL BE SENT AFTER THE CERTIFICATION IS ISSUED.
Signature: The applicant must be either the owner and operator of the construction site. Refer to Part B of the instructions for additional information.
The application must be signed by the applicant to be considered complete. In all cases, it shall be signed as follows:
(Regulation 61.4 (1ei)
a) In the case of corporations, by the responsible corporate officer is responsible for the overall operation of the facility from which the discharge described in
the form originates
b) In the case of a partnership, by a general partner.
c) In the case of a sole proprietorship, by the proprietor.
d) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, (a principal executive officer has
responsibility for the overall operation of the facility from which the discharge originates).
SW Construction Application for: page 5 of 5
3rd Party Preparer: If this form was prepared by an authorized agent on behalf of the Permittee, please complete the field below.
Preparer Name (printed) Email Address
✔
05/11/2017
Adam Yee Senior Project Manager
Yolanda Grass yolanda@wcecivil.com
S:\PROJECTS\LEG\SWMP\SHEET-02-SWMP.pdf
Evergreen Industrial 05/11/2017
Attach Map
Attach File
Attach File
Attach File
Attach File
Project:
Date:
Sheets
11582 Colony Row
Broomfield, Colorado 80021
Phone: (720)259-0965
Fax: (720)259-1519
No. Revisions: By: Date:
WOHNRADE CIVIL ENGINEERS, INC.
LEG: 1707.00
06/20/17
3
Scale:
Designed By:
Reviewed By:
Sheet
YSG
MBW
1"=20'
1
Project:
Date:
Sheets
11582 Colony Row
Broomfield, Colorado 80021
Phone: (720)259-0965
Fax: (720)259-1519
No. Revisions: By: Date:
WOHNRADE CIVIL ENGINEERS, INC.
LEG: 1707.00
06/20/17
3
Scale:
Designed By:
Reviewed By:
Sheet
YSG
MBW
1"=20'
2
Project:
Date:
Sheets
11582 Colony Row
Broomfield, Colorado 80021
Phone: (720)259-0965
Fax: (720)259-1519
No. Revisions: By: Date:
WOHNRADE CIVIL ENGINEERS, INC.
LEG: 1707.00
06/20/17
3
Scale:
Designed By:
Reviewed By:
Sheet
YSG
MBW
1"=20'
3
✔
Senior Project Manager
Adam Yee
208.869.8292 ayee@evergreen-ind.com
Evergreen Industrial
206 E 4th Street; Suite 210
Loveland CO 80557
Evergreen Industrial 05/11/2017