HomeMy WebLinkAboutWOODSPRING SUITES - PDP190006 - SUBMITTAL DOCUMENTS - ROUND 2 - EROSION CONTROL LETTER/REPORTSTORMWATER MANAGEMENT PLAN (SWMP) REPORT
Woodspring Suites
Interchange Business Park
Fort Collins, Colorado
Prepared for:
Tallgrass Hospitality, LLC
250 N. Water, Suite 300
Wichita, KS 67202
Prepared by:
Kimley-Horn and Associates, Inc.
4582 South Ulster Street, Suite 1500
Denver, Colorado 80237
Project #: 096813000
Prepared: March 25, 2019
WOODSPRING SUITES
AT
847 SE Frontage Road
STORMWATER MANAGEMENT PLAN (SWMP) REPORT
MARCH 26, 2019
Prepared By:
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TABLE OF CONTENTS
SWMP PREPARER CERTIFICATION ..........................................................................................4
PERMITTEE / OPERATOR RESPONSIBILITIES.........................................................................5
OWNER/PERMITTEE CERTIFICATION.......................................................................................6
OPERATOR/PERMITTEE CERTIFICATION ................................................................................6
SUBCONTRACTOR CERTIFICATION .........................................................................................7
SUBCONTRACTOR CERTIFICATION............................................................................................7
SUBCONTRACTOR CERTIFICATION............................................................................................7
SUBCONTRACTOR CERTIFICATION............................................................................................7
GENERAL REQUIREMENTS .......................................................................................................8
INTRODUCTION AND PURPOSE ..................................................................................................8
PERMIT COVERAGE AND APPLICATIONS ..................................................................................8
DEFINITIONS ..................................................................................................................................8
SITE DESCRIPTION .....................................................................................................................9
GENERAL PROJECT DESCRIPTION ............................................................................................9
PROJECT CONTACTS ...................................................................................................................9
PROJECT LOCATION...................................................................................................................10
VICINITY MAP...............................................................................................................................10
HISTORICAL LAND USE ..............................................................................................................10
EXISTING SITE CONDITIONS ...................................................................................................11
THREATENED AND ENDANGERED SPECIES...........................................................................11
WETLANDS...................................................................................................................................11
DRAINAGE CHARACTERISTICS .................................................................................................11
VEGETATION................................................................................................................................12
SOILS 12
SITE AND DISTRUBED AREAS ...................................................................................................12
RAINFALL DATA ...........................................................................................................................12
RECEIVING WATERS...................................................................................................................13
PROPOSED SITE CONDITIONS................................................................................................13
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PROJECT DESCRIPTION.............................................................................................................13
TOPOGRAPHY AND DRAINAGE CHARACTERISTICS ..............................................................13
PROPOSED CONSTRUCTION ACTIVITIES..............................................................................13
EROSION CONTROL PLAN REQUIREMENTS .........................................................................14
STORMWATER MANAGEMENT CONTROLS...........................................................................14
QUALIFIED STORMWATER MANAGER......................................................................................14
SITE SPECIFIC POLLUTION SOURCES .....................................................................................15
IDENTIFICATION OF POLLUTANT SOURCES ...........................................................................15
BEST MANAGEMENT PRACTICES FOR STORMWATER POLLUTION PREVENTION............17
FINAL STABILIZATION AND LONG TERM STORMWATER MANAGEMENT ..........................19
INSPECTION REQUIREMENTS.................................................................................................19
INSPECTION SCHEDULE REQUIREMENTS ..............................................................................19
INSPECTION PROCEDURES.......................................................................................................20
CONTROL MEASURE MAINTENANCE / REPLACEMENT AND FAILED CONOTROL
MEASURESS ..............................................................................................................................21
CONCLUSIONS ..........................................................................................................................22
REFERENCES ............................................................................................................................23
APPENDIX ..................................................................................................................................24
APPENDIX A – EROSION CONTROL PLANS
APPENDIX B – PERMITS
APPENDIX C – THREATENED AND ENDANGERED SPECIES
APPENDIX D – SOILS INFORMATION
APPENDIX E – IDENTIFICATION OF POLLUTANT SOURCES
APPENDIX F – CONTROL MEASURE DETAILS
APPENDIX G – LAND DISTURBANCE / CONTROL MEASURE / STABILIZATION LOG
APPENDIX H – CDPHE ENVIRONMENTAL SPILL REPORTING
APPENDIX I – SWMP INSPECTION REPORTS
APPENDIX J – CONTROL MEASURE CORRECTIVE ACTION LOG
APPENDIX K – SWMP AMENDMENT LOG
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SWMP PREPARER CERTIFICATION
This Stormwater Management Plan (SWMP) has been prepared by me, or under my direct supervision, in
substantial accordance with the requirements of the City of Fort Collins, (the City) Stormwater Criteria
Manual.
Erin Griffin, P.E., CPESC
Colorado Registered PE # 42694
Project Design Engineer
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PERMITTEE / OPERATOR RESPONSIBILITIES
This Stormwater Management Plan (SWMP) is prepared for Tallgrass Hospitality, LLC (the “Site
Developer”) to fulfill the erosion control requirements for the City of Fort Collins (the “City”) and the State of
Colorado Department of Public Health and Environment (CDPHE) for the Woodspring Suites Project (the
“Project”). This narrative, in conjunction with the Erosion Control Plans included in Appendix A, examines
measures taken onsite to improve stormwater quality leaving the site, and also addresses important erosion
control measures implemented prior to and during construction. A general overview of the procedures
outlined in the SWMP which the Operator (the “Contractor”) shall follow is provided below for reference.
Responsibility
Operator
1. Submit the applicable City and CDPHE Permit Applications, copies
of which is provided in the Appendices.
2. Complete the Permittee / Operator SWMP Certifications provided
within the SWMP Narrative.
3. Complete the Operator / SWMP Administrator Contact Information
identified in the SWMP Narrative.
4. Post the Site in accordance with the requirements identified on the
Erosion Control Plans included in the appendices of this report.
5. Commence Control Measure installation and construction in
accordance with the Phased Control Measure Implementation.
6. Schedule and Complete a Stormwater Management Pre-
Construction Meeting.
7. Complete Land Disturbance / Control Measure / Site Stabilization
Log, a copy of which is included in the appendices of this report.
8. Complete Inspections in accordance with the SWMP Inspection
Schedule and Procedures outlined within the SWMP Narrative.
9. Complete field maintenance or field modifications to Stormwater
Management Practices based upon the results of the Inspection.
10. Maintain current records of the SWMP Inspections in accordance
with the Inspection Record Keeping identified in the SWMP
Narrative.
11. Maintain current records of the Land Disturbance / Control
Measure / Site Stabilization Log, a copy of which is included in the
appendices of this report.
12. Maintain current records of the Control Measure Corrective Action
Log, a copy of which is included in the appendices of this report.
13. Maintain current records of the SWMP Amendment Log, a copy
which is included in the appendices of this report.
14. Achieve Final Stabilization in accordance with the Final
Stabilization practices outlined within the SWMP Narrative.
15. File the applicable City/CDPHE Construction Stormwater
Inactivation Notice.
This summary is provided for Permittee / Operator convenience only and shall not be considered all
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OWNER/PERMITTEE CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Site Developer’s Authorized Agent: Date:
OPERATOR/PERMITTEE CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Site Developer’s Authorized Agent: Date:
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SUBCONTRACTOR CERTIFICATION
SUBCONTRACTOR CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Subcontractor’s Authorized Agent: Date:
SUBCONTRACTOR CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Subcontractor’s Authorized Agent: Date:
SUBCONTRACTOR CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations.
Subcontractor’s Authorized Agent: Date:
Note: Additional Subcontractor Certifications shall be completed as necessary.
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GENERAL REQUIREMENTS
INTRODUCTION AND PURPOSE
This SWMP is provided to support the approval of the Stormwater Management Plan and the issuance of
any required stormwater permits with the City or CDPHE. This Report, in conjunction with the Stormwater
Management Plan Construction Drawings, provides a site and project understanding along with guidelines
for implementation and maintenance of erosion, sediment and stormwater quality control measures prior to
and during construction of the Project.
The primary goal of pollution prevention efforts during project construction is to control sediment and
pollutants that originate on the site and prevent them from flowing to surface waters. The purpose of this
SWMP is to provide guidelines for achieving that goal. A successful pollution prevention program also
relies upon careful inspection and adjustments during the construction process in order to enhance its
effectiveness.
This SWMP must be implemented before construction begins on the site. It primarily addresses the impact
of storm rainfall and runoff on areas of the ground surface disturbed during the construction process. In
addition, there are recommendations for controlling other sources of pollution that could accompany the
major construction activities.
Applicability of this SWMP shall be terminated when disturbed areas are stabilized, permanent erosion
controls are removed, construction activities covered herein have ceased.
PERMIT COVERAGE AND APPLICATIONS
Based upon a Site Disturbance Area of more than one (1) acre, this site will require approval by the City
and stormwater coverage with the issuance of a Colorado Discharge Permit System (CDPS) - Stormwater
Discharge Associated with Construction Activities Application (the General Permit) through the CDPHE.
A copy of all applicable permits are included in Appendix B of this report.
DEFINITIONS
Operator – The group or individual that is responsible for day-to-day operations on the project site. The
Operator will be assigned the SWMP Administrator role and these terms are used interchangeably in the
SWMP.
Site Developer – Tallgrass Hospitality, LLC
SWMP – Construction Activities Stormwater Management Plan
Qualified Stormwater Manager – The individual(s) knowledgeable in the principles and practices of
erosion and sediment control and pollution prevention, and with the skills to assess conditions at
construction sites that could impact stormwater quality and to assess the effectiveness of stormwater
controls implemented. The activities and responsibilities of the Manager shall address all aspects of the
facility’s SWMP. The Operator will be assigned the Qualified Stormwater Manager role and these terms are
used interchangeably in the SWMP.
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SITE DESCRIPTION
GENERAL PROJECT DESCRIPTION
This project will be developed on a platted tract located in the northwest quarter of Section 15, Township 7
North, Range 68 West of the 6th PM. The site is approximately 2.79 acres and does not contain any existing
structures. The site is currently relatively flat with slopes ranging from 0.5% to 3%. The site is currently
zoned C-G (General Commercial). The proposed land uses for this site will consist of a 4-story hotel
building with surrounding surface parking.
PROJECT CONTACTS
SWMP PREPARER
Company: Kimley-Horn and Associates, Inc.
Contact: Erin Griffin, P.E., CPESC
Address: 4582 South Ulster Street – Suite 1500
Denver, CO 80237
Phone: 303.228.2300
Email: erin.griffin@kimley-horn.com
OWNER/PERMITTEE
Company:
Contact:
Address:
Phone:
Email:
OPERATOR/PERMITTEE
Company:
Contact:
Address:
Phone:
Email:
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PROJECT LOCATION
The proposed 847 SE Frontage Road Project is located within the Northwest Quarter of Section 15,
Township 7 North, Range 68 West of the Sixth Principal Meridian, City of Fort Collins, County of Larimer,
Colorado. The site is bound by an existing Vehicle Emissions Testing Station to the northeast, I-25 to the
northwest, and the frontage road to the south.
North: Interstate 25 (“I-25”)
East: Vehicle Emissions Testing Facility
South: Frontage Road
West: Interstate 25 (“I-25”)
VICINITY MAP
A vicinity map is provided below for reference:
HISTORICAL LAND USE
The Site is currently undeveloped.
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EXISTING SITE CONDITIONS
THREATENED AND ENDANGERED SPECIES
In accordance with the US Department of the Interior Fish and Wildlife Service, Ecological Services,
Colorado Field Offices list of Threatened, Endangered, Candidate and Proposed Species, printed May
2015, known threatened or endangered species for the Site are as follows:
Arapahoe Snowfly – Candidate
Canada Lynx – Threatened
Colorado Butterfly Plant – Threatened
Great Sage Grouse – Candidate
Greenback Cutthroat Trout – Threatened
Least Tern - Endangered
Mexican Spotted Owl – Threatened
North Park Phacelia – Endangered
Pallid Sturgeon – Endangered
Piping Plover - Threatened
Preble’s Meadow Jumping Mouse - Threatened
Ute Ladies’ – Tresses Orchid – Threatened
Western Prairie Fringed Orchid – Threatened
Whooping Crane – Endangered
There are no known threatened or endangered species within the project area.
The USFW Endangered Species Listing is included in Appendix C of this report.
WETLANDS
There are no known wetlands/wetlands channels within the project area.
DRAINAGE CHARACTERISTICS
The existing Site is relativity flat with slopes ranging from 0.5% to 3%. There are currently no existing on-
site water quality or detention improvements. The majority of the site currently slopes to the southwest,
conveying water into the frontage road. The site and surrounding area currently drain to a swale south of
the Frontage Road conveyed into Boxelder Creek south of the swale. Once the Project takes over control
of the Site, the existing topography is anticipated to be fairly flat and consist of the following:
The majority of existing flows for this site are conveyed into an existing inlet at the northwest corner of the
site which flows into a vegetated swale until it is intercepted by Spring Creek. Once the Project takes over
control of the Site, the existing topography is anticipated to be fairly flat and consist of the following:
Highest Elevation: 4931
Lowest Elevation: 4926
Average Slopes: ±3%
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VEGETATION
Once the Project takes over control of the Site, the existing ground cover will consist of recently disturbed
soils and possible temporary seeding. The composite imperviousness of the existing site approximately is
2%.
SOILS
The site is currently relativity flat with slopes ranging from 0.5% to 3%. The soil on the site is nunn clay
loam classified as Hydrologic Soil Group C.
The Whole Soil K Factor Erosion Index the Project is classified between 0.28 and 0.32. Values range from
0.02 to 0.69, with the higher value signifying that the soil is more susceptible to sheet and rill erosion by
water. This value indicates that susceptibility for erosion by water is relatively moderate.
The Wind Erodibility Group (WEG) consists of soils that have similar properties affecting their susceptibility
to wind erosion in cultivated areas. Soils assigned to Group 1 are the most susceptible to wind erosion and
those assigned to Group 8 are the least susceptible. The soils associated with the Project are assigned to
Group 6, indicating a lower susceptibility for wind erosion.
Information regarding the project site soils is included in Appendix D of this report.
SITE AND DISTRUBED AREAS
Site and disturbance areas anticipated for the project construction activities are indicted below:
Site Area: ±2.79 Acres
Limits of Construction: ±2.95 Acres
Disturbance Area: ±2.95 Acres
These areas are as indicated on the Erosion Control Plan included in Appendix A.
RAINFALL DATA
Rainfall data was for the 24 hour rainfall was obtained from the Precipitation Frequency Data Server using
NOAA Atlas 14, Volume 8 for the City of Fort Collins and is shown in the following table.
Storm Frequency Rainfall Depth (Inches)
2-year 1.9
5-year 2.5
10-year 3.0
25-year 3.9
50-year 4.7
100-year 5.6
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RECEIVING WATERS
Receiving waters were determined using the Final Drainage Report for Interchange Business Park dated
April 13, 2001.
USGS website: The National Map Viewer (http://viewer.nationalmap.gov/viewer/) and the State of Colorado
Department of Natural Resources, Division of Water Resources Colorado River Basins map (state river
basins.mxd, March 16, 2005) and are as follows:
Immediate Receiving Waters – Boxelder Creek
Ultimate Receiving Waters – Poudre River
PROPOSED SITE CONDITIONS
PROJECT DESCRIPTION
The Site will be developed on a platted tract located in the northeast quarter of Section 15, Township 7
North, Range 68 West of the 6th PM. The Site is approximately 2.79 acres and is undeveloped.
TOPOGRAPHY AND DRAINAGE CHARACTERISTICS
The site is relativity flat with slopes ranging from 0.5% to 3%. Existing drainage patterns will be maintained
with this Project.
PROPOSED CONSTRUCTION ACTIVITIES
The operator shall utilize the following general construction practices which are required throughout the
project at locations shown on the SWMP or as dictated by construction activities.
· Materials handling and spill prevention
· Waste management and disposal
· Hazardous material storage and containment area
· Vehicle maintenance fueling and storage
· Solid waste containment facility
· Sanitary waste facility
· Street Sweeping (SS)
· SWMP Information Sign (S)
These practices shall remain active and operational throughout the duration of construction and be
identified on the SWMP. Due to any phasing required for the Project, it is understood that these control
measures may be relocated as needed to facilitate construction operations. The Operator shall locate and
identify the original and current location of these control measures on the SWMP throughout the
construction of the Project.
General construction sequencing and activities associated with this Project consist of the following:
1. Prepare and submit the City of Fort Collins Excavation Permit and the CDPHE Construction
Stormwater Discharge Permit as required. A copy of the permit(s) shall be provided to the Site
Developer upon receipt from the City/CDPHE.
2. Install SWMP Information Sign (S) in accordance with applicable City, State, and Site Developer
requirements.
3. Install Vehicle Tracking Control (VTC).
4. Prepare Stabilized Staging Area (SSA). Contractor shall coordinate location with the Overall
Developer and note the actual size and location of this area.
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5. Install and denote on the plan any of the following areas: trailer, parking, lay down, porta-potty,
wheel wash, concrete washout, mason's area, fuel and material storage containers, solid waste
containers, etc.
6. Install perimeter controls including Silt Fence (SF) and Rock Sock Perimeter Control (RS) around
limits as shown on plan. Ensure that the Limits of Construction (LOC) are defined as necessary or
known by all parties which will be responsible for construction on the Site. Construction Fence
(CF) shall also be installed and modified, if applicable, on the plan. Limits of Construction may be
located outside of this construction fence.
7. Install Rock Socks (RS) for existing stormwater conveyance facilities as indicated on the Erosion
Control Plans or as necessitated by field conditions.
8. Upon completion of the initial control measure installation the Operator shall schedule a Pre-
Construction Meeting with the City and Site Developer to confirm control measures installed are
adequate prior to proceeding with additional land disturbing activities.
9. Install Concrete Washout Area (CWA) prior to construction of concrete improvements.
10. Install utilities, storm sewers, curb and gutters.
11. Begin fine grading the Site. Stockpile materials in accordance with the Soil Stockpile Management
(SP) control measure. Permanently stabilize areas to be vegetated as they are brought to final
grade.
12. Start construction of building pad and structures.
13. Complete grading and installation of Permanent Stabilization (PS) over all areas in accordance with
approved Landscape Plans.
14. Remove remaining control measures once Permanent Stabilization has been achieved and
accepted by City Inspector. Repair and stabilize areas disturbed through control measure removal.
15. Notify the Site Developer of intent to file the Notice of Inactivation with the City/CDPHE and receive
Site Developer acceptance to proceed with stormwater management close-out.
16. Notify the City/CDPHE of the intent to file the Notice of Inactivation and receive City/CDPHE
acceptance prior to proceeding with filing the Notice of Inactivation.
17. Proceed with filing the Notice of Inactivation.
18. Provide the Site Developer with a copy of all stormwater documentation (permits, inspection
reports, logs, etc.) upon completion of project stormwater Notice of Inactivation.
EROSION CONTROL PLAN REQUIREMENTS
The Erosion Control Plans for this project is included within Appendix A of this report and meets the
following minimum requirements:
Construction Site Boundaries
Identification of Ground Surface Disturbance
Areas of Cut / Fill
Areas of Storage of Building Materials, Equipment, Soil or Waste
Location of Dedicated Asphalt or Concrete Batch Plants
Location of Structural control measures
Location of Non-Structural control measures
Location of Springs, Streams, Wetlands or other Surface Waters (As Applicable)
STORMWATER MANAGEMENT CONTROLS
QUALIFIED STORMWATER MANAGER
The individual(s) knowledgeable in the principles and practices of erosion and sediment control and
pollution prevention, and with the skills to assess conditions at construction sites that could impact
stormwater quality and to assess the effectiveness of stormwater controls implemented. The activities and
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responsibilities of the Manager shall address all aspects of the facility’s SWMP. The Operator will be
assigned the Qualified Stormwater Manager role and these terms are used interchangeably in the SWMP.
SITE SPECIFIC POLLUTION SOURCES
Further identification of site specific pollutants that fall within the categories outlined in the next section may
be field noted using the corresponding log included in the appendices of this report. The logs are intended
to record site specific pollutants, the date of arrival on the site, the date removed from the site, and the
methods of treatment.
IDENTIFICATION OF POLLUTANT SOURCES
Evaluation of general sediment and non-sediment pollution sources associated with site construction
activities, as outlined within the State General Permit, consist of the following:
Disturbed and Stored Soils – Earth disturbing activities (grading, excavation, etc.) will be
necessary for this project; therefore, the potential exists for disturbed site soils to contribute
sediment to stormwater discharges. Recommended control measures are identified below:
o Silt Fence
o Temporary Seeding
o Permanent Stabilization
o Inlet Protection
o Rock Socks
o Street Sweeping
Vehicle Tracking and Sediment – Construction traffic will be entering and exiting the Site;
therefore, the potential exists for vehicle tracking to contribute sediment to stormwater discharges.
Recommended control measures are identified below:
o Rock Socks
o Street Sweeping
o Vehicle Tracking Control
o Stabilized Staging Area
o Stockpile Management
Management of Contaminated Soils – Contaminated soils are not anticipated on this Site. If
encountered, the Qualified Stormwater Manager shall take appropriate containment and treatment
measures.
Loading and Unloading Operations – Loading and unloading operations will be taking place at
the Site; therefore, the potential exists for these operations to introduce sediment and non-sediment
pollutants to stormwater discharges. Recommended control measures are identified below:
o Covering Outdoor Storage and Handling Areas
o Good Housekeeping Practices
Outdoor Storage of Materials – Limited outdoor storage of materials is anticipated with
construction of this site; however, outdoor storage of chemicals, fertilizers, etc. is not anticipated.
Recommended control measures are identified below:
o Covering Outdoor Storage and Handling Areas
o Good Housekeeping Practices
o Spill Prevention Containment and Control
Vehicle and Equipment Maintenance and Fueling – Routine maintenance and fueling of vehicles
and equipment is anticipated with this Site; therefore, the potential exists for pollutants associated
with these activities to contribute pollutants to stormwater discharges. Recommended control
measures are identified below:
o Vehicle Equipment Maintenance and Fueling
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Significant Dust or Particulate Generating Processes – Earth disturbing activities (grading,
excavation, etc.) will be necessary for this project; therefore, the potential exists for windblown site
soils to contribute sediment to stormwater discharges. Recommended control measures are
identified below:
o Wind Erosion / Dust Control
Routine Maintenance – Routine maintenance involving fertilizers, pesticides, detergents, fuels,
solvents, oils, etc., other than those identified within Vehicle and Equipment Maintenance and
Fueling are not anticipated with this project. If encountered, the Qualified Stormwater Manager
shall take appropriate containment and treatment measures. Recommended control measures are
identified below:
o Preventative Maintenance
Onsite Waste Management – Waste management consisting of solid waste piles, liquid wastes,
dumpsters, etc. are anticipated onsite; therefore, the potential exists for these operations to
introduce sediment and non-sediment pollutants to stormwater discharges. Recommended control
measures are identified below:
o Good Housekeeping
Concrete Truck / Equipment Washing – Concrete truck and equipment washing are anticipated
with this project. The Qualified Stormwater Manager shall take appropriate containment and
treatment measures. Recommended control measures are identified below:
o Concrete Washout Area
Dedicated Asphalt and Concrete Batch Plants – Dedicated asphalt and/or concrete batch plants
are not anticipated with this project. If encountered, the Qualified Stormwater Manager shall take
appropriate containment and treatment measures and document as necessary.
Non-Industrial Waste Sources – Non-Industrial waste sources limited to portable sanitary
facilities are anticipated with this project. Recommended control measures are identified below:
o Good Housekeeping
Additional Pollutant Sources – Additional areas or procedures where potential spills could occur
are not anticipated with this project.
Logs for the identification of pollutant sources are included in Appendix E for reference and use.
Based on the following, the potential to contribute pollutants to stormwater discharges is not significant for
most of the pollutants identified above:
Relatively Low Frequency of the Activities
The Ability to Schedule Activities During Dry Weather
Existing Site Topography
The Ability to Implement Primary and Secondary Containment for Product Storage
The Ability to Locate Activities Away from Drainage Ways
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BEST MANAGEMENT PRACTICES FOR STORMWATER POLLUTION
PREVENTION
STRUCTURAL PRACTICES FOR EROSION AND SEDIMENT CONTROL
Structural control measures shall be implemented onsite to minimize erosion and sediment transport.
Recommended control measures based upon a limited site review may be seen within the Erosion Control
Plan included in the appendices of this report. Additional control measures shall be implemented by the
Qualified Stormwater Manager if necessary to prevent sediment laden runoff from leaving the project site.
The SWMP and Erosion Control Plan shall be updated to reflect any changes or revisions enacted in the
field. Details of the control measures proposed for the Site are included in Appendix F.
NON-STRUCTURAL PRACTICES FOR EROSION AND SEDIMENT CONTROL
Non-Structural control measures shall be implemented onsite to minimize erosion and sediment transport.
Recommended control measures based upon a limited site review may be seen within the Erosion Control
Plan included in the appendices of this report. Additional control measures shall be implemented by the
Qualified Stormwater Manager if necessary to prevent sediment laden runoff from leaving the project site.
The SWMP and Erosion Control Plan shall be updated to reflect any changes or revisions enacted in the
field. Details of the control measures proposed for the Site are included in Appendix F.
PHASED CONTROL MEASURE IMPLEMENTATION
Since the Project will not require any major demolition, construction of the identified improvements will take
place under two phases of construction as identified within the construction sequencing included within this
report.
A Land Disturbance, Control Measure Installation, and Stabilization Log is provided in Appendix G and
shall be filled out accordingly during Control Measure implementation.
MATERIALS HANDLING AND SPILL PREVENTION
Any hazardous or potentially hazardous material that is brought onto the construction site shall be handled
properly in order to reduce the potential for stormwater pollution. In an effort to minimize the potential for a
spill of petroleum product or hazardous materials to come in contact with stormwater, the following steps
shall be implemented:
Material Safety Data Sheets (MSDS) information shall be kept on site for any and all applicable
materials.
All materials with hazardous properties (such as pesticides, petroleum products, fertilizers,
detergents, construction chemicals, acids, paints, paint solvents, additives for soil stabilization,
concrete, curing compounds and additives, etc.) shall be stored in a secure location, under cover
and in appropriate, tightly sealed containers when not in use.
The minimum practical quantity of all such materials shall be kept on the job site and scheduled for
delivery as close to time of use as practical.
A spill control and containment kit shall be provided on the construction site and location(s) shown
on the Erosion Control Plan.
All of the product in a container shall be used before the container is disposed of. All such
containers shall be triple rinsed, with water prior to disposal. The rinse water used in these
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containers shall be disposed of in a manner in compliance with State and Federal regulations and
shall not be allowed to mix with stormwater discharges.
All products shall be stored in and used from the original container with the original product label
and used in strict compliance with the instructions on the product label.
The disposal of excess or used products shall be in strict compliance with instructions on the
product label.
If utilized, temporary onsite fuel tanks for construction vehicles shall meet all state and federal regulations.
Tanks shall have approved spill containment with the capacity required by the applicable regulations. From
NFPA 30: All tanks shall be provided with secondary containment (i.e. containment external to and separate
from primary containment). Secondary containment shall be constructed of materials of sufficient thickness,
density and composition so as not to be structurally weakened as a result of contact with the fuel stored
and capable of containing discharged fuel for a period of time equal to or longer than the maximum
anticipated time sufficient to allow recovery of discharged fuel. The tanks shall be in sound condition free
of rust or other damage which might compromise containment. Fuel storage areas shall meet all
Environmental Protection Agency (EPA), OSHA and other regulatory requirements for signage, fire
extinguisher, etc. Hoses, valves, fittings, caps, filler nozzles and associated hardware shall be maintained
in proper working condition at all times. The location of fuel tanks shall be shown on the Erosion Control
Plan and shall be located to minimize exposure to weather and surface water drainage features.
The Operator shall develop and implement a Materials Handling and Spill Prevention Plan (MHSPP) in
accordance with the EPA and State of Colorado requirements. In the event of an accidental spill, immediate
action shall be undertaken by the Operator to contain and remove the spilled material. All hazardous
materials, including contaminated soil, shall be disposed of by the Operator in the manner specified by
federal, state and local regulations and by the manufacturer of such products. As soon as possible, the
spill shall be reported to the appropriate agencies. As required under the provisions of the Clean Water
Act, any spill or discharge entering waters of the United States shall be properly reported. The Operator
shall prepare a written record of any spill and associated clean-up activities of petroleum products or
hazardous materials in excess of 1 gallon or reportable quantities, whichever is less.
Any spills of petroleum products or hazardous materials in excess of Reportable Quantities as defined by
EPA or the state or local agency regulations, shall be immediately reported to the Colorado Department of
Public Health and Environment spill reporting lines.
CDPHE Environmental Release and Incident Reporting Line (877) 518-5608.
For reference, a bulletin on Environmental Spill Reporting published by the CDPHE, has been included in
Appendix H of this report.
VEHICLE TRACKING AND DUST CONTROL
Vehicle Tracking Control Measures (structural and non-structural) shall be implemented in order to control
potential sediment discharges from vehicle tracking. Practices shall be implemented for all areas of
potential vehicle tracking which include, but are not limited to reduced site access and utilization of
designated haul routes.
Areas of soil that are denuded of vegetation and have little protection from particles being picked up and
carried by wind should be protected with a temporary cover or kept under control with water or other soil
adhering products to limit wind transported particles exiting the site perimeter.
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WASTE MANAGEMENT AND DISPOSAL
An effective first step towards preventing pollution in stormwater from work sites involves using a common
sense approach to improve the facility’s basic housekeeping methods. Poor housekeeping practices result
in increased waste and potential for stormwater contamination.
No solid materials are allowed to be discharged from the site with stormwater. All solid waste, including
disposable materials incidental to the construction activities, must be collected and placed in containers.
Secure covers for the containers shall be provided at all times to meet state and local requirements. The
location of solid waste receptacles shall be identified on the Erosion Control Plan by the Operator.
Concrete waste is anticipated with this project; and therefore, a dedicated concrete washout is required.
The Qualified Stormwater Manager shall take appropriate containment and treatment measures and
document as necessary.
GROUNDWATER AND STORMWATER DEWATERING
Except as noted below, all discharges covered by this permit shall be composed entirely of stormwater
associated with construction activity.
Emergency Fire Fighting Activities
Uncontaminated Spring Water
Landscape Irrigation Return Flow
Groundwater dewatering is not anticipated. If encountered, the operator shall file for appropriate permits
with the CDPHE.
FINAL STABILIZATION AND LONG TERM STORMWATER
MANAGEMENT
In the natural condition, the site soil is stabilized by means of native vegetation. Therefore, the final
stabilization technique to be used at this project for stabilizing soils shall be to provide a protective cover of
native vegetation, gravel road base, and granular stabilization material. Seeding should be conducted after
final grade is achieved and soils are prepared to take advantage of soil moisture and seed germination.
The SWMP Administrator should evaluate the short and long-term forecasts prior to applying permanent
seed.
Final site stabilization is achieved when vegetative cover provides permanent stabilization with a density
greater than 70 percent of the pre-disturbance levels, or equivalent permanent, physical erosion
reduction methods have been employed over the entire area to be stabilized by vegetative cover. This area
is exclusive of areas that are covered with rock (crushed granite, gravel, etc.) or landscape mulch, paved
or have a building or other permanent structure on them.
INSPECTION REQUIREMENTS
INSPECTION SCHEDULE REQUIREMENTS
A thorough inspection of the stormwater management system shall be performed and documented at least
once every 7 calendar days, or once every 14 days, with post-storm event inspections conducted within 24
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hours after the end of any precipitation or snowmelt. If more frequent inspections are required to ensure
that control measures are properly maintained and operated, the inspection schedule shall be modified to
meet this need.
INSPECTION PROCEDURES
The inspection shall include observations of:
The Construction Site Perimeter and Discharge Points;
All Disturbed Areas;
Areas Used for Material / Waste Storage That are Exposed to Precipitation;
Other Areas Determined to Have a Significant Potential for Stormwater Pollution;
Erosion and Sediment Control Measures Identified in the SWMP; and
Any Other Structural Control Measures That May Require Maintenance.
The inspection must determine if there is evidence of, or the potential for, pollutants entering the drainage
system. Control measures should be reviewed to determine if they still meet the design intent and
operational criteria in the SWMP and if they continue to adequately control pollutants at the site. Any control
measures not operating in accordance with the SWMP must be addressed as soon as possible,
immediately in most cases, to minimize the discharge of pollutants and the SWMP must be updated and
inspections must be documented.
Examples of specific items to evaluate during site inspections are listed below. This list is not intended to
be comprehensive. During each inspection, the inspector shall evaluate overall pollutant control system
performance as well as particular details of individual system components. Additional factors should be
considered as appropriate to the circumstances.
Vehicle Tracking Control - Locations where vehicles enter and exit the site shall be inspected for
evidence of offsite sediment tracking. Exits shall be maintained as necessary to prevent the release
of sediment from vehicles leaving the site. Any sediment deposited on the adjacent roadway shall
be removed as necessary throughout the day or at the end of every day and disposed of in an
appropriate manner. Sediment shall not be washed into storm sewer systems.
Erosion Control Devices - Rolled erosion control products (nets, blankets, turf reinforcement mats)
and marginally vegetated areas (areas not meeting required vegetative densities for final
stabilization) must be inspected frequently. Rilling, rutting and other signs of erosion indicate the
erosion control device is not functioning properly and additional erosion control devices are
warranted.
Sediment Control Devices - Sediment barriers (silt fence, sediment control logs, etc.), traps and
basins must be inspected and they must be cleaned out at such time as their original capacity has
been reduced by 50 percent. All material excavated from behind sediment barriers or in traps and
basins shall be incorporated into onsite soils or spread out on an upland portion of the site and
stabilized. To minimize the potential for sediment releases from the Project, site perimeter control
devices shall be inspected with consideration given to changing up-gradient conditions.
Material Storage Areas - Material storage areas should be located to minimize exposure to weather.
Inspections shall evaluate disturbed areas and areas used for storing materials that are exposed
to rainfall for evidence of, or the potential for, pollutants entering the drainage system or discharging
from the site. If necessary, the materials must be covered or original covers must be repaired or
supplemented. Also, protective berms must be constructed, if needed, in order to contain runoff
21 WOODSPRING SUITES │ SWMP REPORT
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from material storage areas. All state and local regulations pertaining to material storage areas
shall be adhered to.
Vegetation - Seed/Sod shall be free of weedy species and appropriate for site soils and regional
climate. Seeding, sodding, tacking, and mulching shall be completed, in accordance with the
requirements outlined within the Project Manual and locations identified within the plans,
immediately after topsoil is applied and final grade is reached. Grassed areas shall be inspected
to confirm that a healthy stand of grass is maintained. Rip-rap, mulch, gravel, decomposed granite
or other equivalent permanent stabilization measures may be employed in lieu of vegetation based
on site-specific conditions and Site Developer approval.
Discharge Points - All discharge points must be inspected to determine whether erosion and
sediment control measures are effective in preventing discharge of sediment from the site or
impacts to receiving waters.
All necessary maintenance and repair shall be completed immediately. The inspection reports must be
completed after each inspection. An important aspect of the inspection report is the description of additional
measures that need to be taken to enhance plan effectiveness. The inspection report must identify whether
the site was in compliance with the SWMP at the time of inspection and specifically identify all incidents of
non-compliance.
The Qualified Stormwater Manager shall ensure that, at a minimum, the following is recorded for each
inspection and kept onsite for reference:
Inspection Date
Name(s) and Title(s) of Inspection Personnel
Location(s) of Discharges of Sediment and Other Pollutants from the Site
Location(s) of control measures Requiring Maintenance
Location(s) of Failed control measures
Location(s) of Additional Required control measures
Deviations from the Minimum Inspections Schedule (If Applicable)
Description of Corrective Actions
Certification of SWMP Compliance after adequate corrective action(s) taken, or where a report
does not identify any incidents requiring corrective action, this certification shall be made by the
inspector indicating compliance with the permit
The use and maintenance of log books, photographs, field notebooks, drawings or maps should also be
included in the SWMP records when appropriate. Copies of the Inspection Form and Control Measure
Corrective Action Log have been included in Appendix I and Appendix J for reference and use.
CONTROL MEASURE MAINTENANCE / REPLACEMENT AND FAILED
CONOTROL MEASURESS
Site inspection procedures noted above must address maintenance of control measures that are found to
no longer function as needed and designed, as well as preventive measures to proactively ensure continued
operation.
The Qualified Stormwater Manager shall implement a preventative maintenance program to ensure that
control measure breakdowns and failures are handled proactively. Site inspections should uncover any
conditions which could result in the discharge of pollutants to storm sewers and surface waters and shall
be rectified. For example, sediment shall be removed from silt fences on a regular basis to prevent failure
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of the control measure. Sediment shall be removed to an appropriate location so that it will not become an
additional pollutant source.
The inspection process must also include replacement of control measures when needed or the addition of
new control measures in order to adequately manage the pollutant sources at the site.
Any control measure deficiencies, replacement or additional control measures that may be required shall
be documented on the Erosion Control Plans and on the appropriate Inspection Form. If amendments to
the control measure are required, these amendments shall be documented on the Control Measure
Amendment Log included in Appendix K for reference and use.
CONCLUSIONS
Temporary erosion control measures and control measures will enhance stormwater quality within the
project area by capturing and detaining sediment-laden runoff prior to discharging off-site.
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REFERENCES
City of Fort Collins Amendments to the UDFCD Criteria Manual - City of Fort Collins Ordinance No. 174,
2011.
Colorado Discharge Permit System (CDPS) – Stormwater Discharge Associated with Construction
Activities Application - Prepared by Water Quality Control Division, Colorado Department of Public Health
and Environment; Revised April 2011.
Colorado Discharge Permit System (CDPS) General Permit – Stormwater Discharges Associated with
Construction Activity - Prepared by Water Quality Control Division, Colorado Department of Public Health
and Environment; signed and issued on May 31, 2007 and administratively continued effective July 1, 2013.
NRCS Web Soil Survey - Website: http://websoilsurvey.nrcs.usda.gov.
Precipitation-Frequency Atlas of the Western United States - NOAA ATLAS 2, Volume III-Colorado.
Prepared by the US Department of Commerce, National Oceanic and Atmospheric Administration and
National Weather Service; dated 1973.
Stormwater Discharges Associated with Construction Activity – Stormwater Management Plan Preparation
Guidance - Prepared by Water Quality Control Division, Colorado Department of Public Health and
Environment; Revised April 2011.
Threatened, Endangered, Candidate and Proposed Species - Prepared by US Department of the Interior,
Fish and Wildlife Services, Ecological Services, Colorado Field Offices; printed May 2015.
Urban Storm Drainage Criteria Manual – Volume 3 – Prepared by the Urban Drainage and Flood Control
District; Current Revision November 2010.
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APPENDIX
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APPENDIX A – EROSION CONTROL PLANS
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APPENDIX B – PERMIT
CITY OF FORT COLLINS EXCAVATION PERMIT
CDPHE COLORADO DISCHARGE PERMIT SYSTEM (CDPS) STORMWATER DISCHARGE
ASSOCIATED WITH CONSTRUCTION ACTIVITIES APPLICATION
CDPHE NOITCE OF REASSIGNMENT OF PERMIT COVERAGE AND GENERAL PERMIT
APPLICATION
Engineering Department
281 North College Avenue - PO Box 580
Fort Collins, CO 80522-0580
(970) 221-6605
FAX: (970) 224-6134
PERMIT FOR EXCAVATION ON PUBLIC PROPERTY IN THE RIGHT-OF-WAY
Minimum of 5 Working Days Required for Approval.
Plans that clearly show the proposed work must be included with the permit.
Emergency Excavation Permits may be obtained next business day.
Applicant: Fill out sections 1 – 5 only City Use
Applicant Name:
Company: Phone:
Address:
City/State/Zip:
Sub-Contractor: Phone:
Do both contractor and sub-contractor possess license & proper
endorsement to work in the Public Right-of-Way? Yes No
Is this a City project? _____ Yes _____ No
If so, Project Manager’s Name:
Is this project for a new development? _____ Yes _____ No
If so, Development Name:
Field Contact Name: Phone:
Excavation Address:
Scheduled Start Date: Final:
Temp. Patch Date: Back Fill:
Excavation Type: Open Cut: Boring:
Excavation Size:
Width Length Sq. Ft. Depth
Total Sq. Ft. Pavement Removed:
Existing Surface Type: Asphalt Concrete
Gravel Soil Grass
Purpose of Excavation:
Water Sewer Telephone Electric
Gas Communications Other
Applicant is responsible to notify the following departments:
Utilities - 700 Wood St., 221-6700
For coordination of new utilities with existing utilities
Traffic - 625 Ninth St., 221-6630
For traffic control plan submittal and coordination of signalized
Intersections.
Parks (if applicable) - 413 S. Bryan, 221-6660
For work in the park system
Parking - 210 E. Olive, 221-6617
For work downtown or at CSU
Forestry - 413 S. Bryan, 221-6660
For trees, shrubs or other vegetation
Mark box next to department after notification.
Permit #:
Approval Date:
Expiration Date: 30 DAYS FROM APPROVAL
Reviewed By:
Review Date:
Development Review Permit
Project Name:
Fees:
Application Fee: $ 30.00
Non-Refundable
Inspection Fee: $
$50.00/1000 ft
2
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: 10-2017
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
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
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.
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 the stormwater management plan guidance,
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
For Agency Use Only
Permit Number Assigned
COR03-______________
Date Received ____/____/____
Month Day Year
NOTICE OF REASSIGNMENT OF PERMIT COVERAGE AND GENERAL PERMIT APPLICATION
STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES
PHOTO COPIES, FAXED COPIES, PDF COPIES OR EMAILS WILL NOT BE ACCEPTED.
Please print or type. Original signatures are required. This application must be considered complete by the Division prior to initiation
of permit processing. The Division will notify the applicant if additional information is needed to complete the application. If more space is
required to answer any question, please attach additional sheets to the application form. Applications must be mailed or delivered to:
Colorado Department of Public Health and Environment
Water Quality Control Division
4300 Cherry Creek Drive South
WQCD-P-B2
Denver, Colorado 80246-1530
**Part I of the application beginning below is to be filled out by the new permit applicant that will be assuming permitting
liability for the reassigned portion of the original applicant’s site.
**Part II of the application, starting on page 3 of the form, is to be completed by the current permittee.
Both Parts I (pages 1-4) and II (page 5) must be completed.
EXISTING CERT **__________________ (from Part II)
** NOTE: THIS WILL CREATE A NEW PERMIT FOR PART 1 APPLICANT. THE EXISTING PERMIT WILL NOT BE
TERMINATED. THIS IS NOT A TRANSFER FORM.
PART I - To be completed by the New permit applicant:
I hereby accept the reassignment of permit coverage for the area described in this application. I have reviewed the terms and
conditions of this permit and the Stormwater Management Plan and accept full responsibility, coverage and liability
REASSIGNMENT WILL BE EFFECTIVE _____________________________
MONTH/ DAY/ YEAR
Applicant is : Property Owner Contractor/Operator
A. CONTACT INFORMATION - NOT ALL CONTACT TYPES MAY APPLY * indicates required
*PERMITTEE (If more than one please add additional pages)
*ORGANIZATION FORMAL NAME:
1) *PERMITTEE the person authorized to sign and certify the permit application. This person receives all
permit correspondences and is legally responsible for compliance with the permit.
Responsible Position (Title): ___________________________________________
Currently Held By Person):___________________________________________________________
Telephone No:__________________________________ email address__________________________________
Organization:
Mailing Address:
City:_ State: Zip:
This form must be signed by the Permittee to be considered complete.
Per Regulation 61 In all cases, it shall be signed as follows:
a) In the case of corporations, by a responsible corporate officer. For the purposes of this section, the responsible
corporate officer is responsible for the overall operation of the facility from which the discharge described in the
application 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 or ranking elected official
Application Part 1 page 1of 4 updated 4/2011
2) DMR COGNIZANT OFFICIAL (i.e. authorized agent) the person or position authorized to sign and certify reports required by the
Division including Discharge Monitoring Reports *DMR’s, Annual Reports, Compliance Schedule submittals, and other information
requested by the Division. The Division will transmit pre-printed reports (ie. DMR’s) to this person. If more than one, please add
additional pages. Same As 1) Permittee
Responsible Position (Title):____________________________________________________
Currently Held By (Person):__________________________________________________
Telephone No:_______________________________ email address____________________________________
Organization:_______________________________________________________________
Mailing Address: ____________________________________________________________
City:_ State: Zip: _______________________
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
3) *SITE CONTACT local contact for questions relating to the facility & discharge authorized by this permit for the facility.
Same As 1) Permittee
Responsible Position (Title):____________________________________________________
Currently Held By (Person):__________________________________________________
Telephone No:_______________________________ email address____________________________________
Organization:_______________________________________________________________
Mailing Address: ____________________________________________________________
City:_ State: Zip: _______________________
4) * BILLING CONTACT if different than the permittee
Responsible Position (Title):____________________________________________________
Currently Held By (Person):__________________________________________________
Telephone No:_______________________________ email address____________________________________
Organization:_______________________________________________________________
Mailing Address: ____________________________________________________________
City:_ State: Zip: _______________________
5) OTHER (Please describe)_____________________________________________________
Responsible Position (Title):____________________________________________________
Currently Held By (Person):__________________________________________________
Telephone No:_______________________________ email address____________________________________
Organization:_______________________________________________________________
Mailing Address: ____________________________________________________________
City:_ State: Zip: _______________________
Application Part 1 page 2 of 4 updated 4/2011
B. Permitted Project/Facility Information
Project/Facility Name
Street Address or cross streets
City, Zip Code
County
Facility Latitude/Longitude— (approximate center of site to nearest 15 seconds using one of following formats
001A Latitude . Longitude . (e.g., 39.703°, 104.933°’)
degrees (to 3 decimal places) degrees (to 3 decimal places)
or
001A Latitude º ’ " Longitude º ’ " (e.g., 39°46'11"N, 104°53'11"W)
degrees minutes seconds degrees minutes seconds
C. MAP (Attachment)
Map: Attach a map that indicates the site location and that CLEARLY shows the boundaries of the area that will
be disturbed. Maps must be no larger than 11x17 inches.
D. LEGAL DESCRIPTION
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)
E. AREA OF CONSTRUCTION SITE
Total area of project site (acres):
Area of project site to undergo disturbance (acres):
Total disturbed area of Larger Common Plan of Development or Sale, if applicable:
(i.e., total, including all phases, filings, lots, and infrastructure not covered by this application)
F. NATURE OF CONSTRUCTION ACTIVITY
Check the appropriate box(s) 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.)
□ Single Family Residential Development
□ Multi-Family Residential Development
□ Commercial Development
□ Oil and Gas Production and/or Exploration
(including pad sites and associated infrastructure)
□ Highway/Road Development
(not including roadways associated with commercial or residential development)
□ Other, Describe:
G. ANTICIPATED CONSTRUCTION SCHEDULE
Construction Start Date: Final Stabilization Date:
Application Part 1 page 3 of 4 updated 4/2011
NOTICE OF REASSIGNMENT OF PERMIT COVERAGE AND GENERAL PERMIT APPLICATION
STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES
Application Part 1 page 4 of 4 updated 4/2011
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):
I. REQUIRED SIGNATURES (Both parts i. and ii. must be signed)
Signature of Applicant: The applicant must be either the owner and/or 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:
a) In the case of corporations, by a principal executive officer of at least the level of vice-president or
his or her duly authorized representative, if such representative is responsible for the overall
operation of the facility from which the discharge described in the application 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, or other duly authorized employee if such representative is responsible for
the overall operation of the facility from which the discharge described in the form originates.
STOP!:A Stormwater Management Plan must be completed prior to signing the following certifications!
i. Stormwater Management Plan Certification
“I certify under penalty of law that a complete Stormwater Management Plan, as described in the stormwater
management plan guidance document, has been prepared 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.”
XX
Signature of Legally Responsible Person or Authorized Agent (submission must include original signature) Date Signed
Name (printed) Title
ii. Signature of Permit Legal Contact
“I certify under penalty of law that I have personally examined and am familiar with the information submitted in this
application and all attachments and that, based on my inquiry of those individuals immediately responsible for
obtaining the information, I believe that the information is true, accurate and complete. I am aware that there are
significant penalties for submitting false information, including the possibility of fine or imprisonment.
“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.”
XX
Signature of Legally Responsible Person (submission must include original signature) Date Signed
Name (printed Title
DO NOT INCLUDE A COPY OF THE STORMWATER MANAGEMENT PLAN
DO NOT INCLUDE PAYMENT – AN INVOICE WILL BE SENT AFTER THE CERTIFICATION IS ISSUED.
NOTICE OF REASSIGNMENT OF PERMIT COVERAGE AND GENERAL PERMIT APPLICATION
STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES
Application Part 2 page 1 of 1 updated 4/2011
PART II - AMENDMENT TO THE CURRENT PERMIT CERTIFICATION
TO BE COMPLETED BY CURRENT PERMITTEE
CERTIFICATION NUMBER COR03________________ THIS PERMIT WILL NOT BE TERMINATED
II.A. CURRENT PERMIT LEGAL CONTACT INFORMATION Check if information has changed
Company Name:
Legally Responsible Person: First Name: Last Name:
Title:
Mailing Address:
City, State and Zip Code:
Phone:
Email Address:
2. PERMITTED FACILITY INFORMATION
Name of Plan, Project or Development:
Latitude and Longitude (approximate center of site to nearest 15 seconds using one of following formats):
Latitude: Longitude: (e.g., 39°42’11’’, 104°55’57’’)
degrees /minutes/ seconds
OR
degrees/ minutes/ seconds
Latitude: Longitude: (e.g., 39.703°, 104.933’)
degrees (to 3 decimal places) degrees (to 3 decimal places)
3. MAP (Attachment)
Map: Attach a map that indicates the site location and that CLEARLY shows the boundaries of the area that will be retained under this
current certification. Maps must be no larger than 11x17 inches.
4. NATURE OF CONSTRUCTION ACTIVITY
Check the appropriate box(s) 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.)
□ Single Family Residential Development
□ Multi-Family Residential Development
□ Commercial Development
□ Other, Describe:
9. REQUIRED SIGNATURES Certification for Reassignment
“I certify under penalty of law that I have personally examined and am familiar with the information submitted in Part II of this application
and all attachments in reference to Part II and that, based on my inquiry of those individuals immediately responsible for obtaining the
information, I believe that the information is true, accurate and complete. I am aware that thereare significant penalties for submitting false
information, including the possibility of fine or imprisonment.
“As the permittee currently covered by the above-referenced certification, I hereby agree to reassign the permit coverage for the area and
activity described in Items I.b. and I.c., and all responsibilities thereof, from the above-referenced permit certification to the new permittee
listed in Part I of this form.”
Signature of Legally Responsible Person (submission must include original ink signature) Date Signed
Name (printed) Title
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX C – THEATENED AND ENDANGERED SPECIES
June 21, 2017
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Colorado Ecological Services Field Office
Denver Federal Center
P.O. Box 25486
Denver, CO 80225-0486
Phone: (303) 236-4773 Fax: (303) 236-4005
http://www.fws.gov/coloradoES
http://www.fws.gov/platteriver
In Reply Refer To:
Consultation Code: 06E24000-2017-SLI-1002
Event Code: 06E24000-2017-E-03054
Project Name: Spring Creek Place
Subject: List of threatened and endangered species that may occur in your proposed project
location, and/or may be affected by your proposed project
To Whom It May Concern:
The enclosed species list identifies threatened, endangered, proposed and candidate species, as
well as proposed and final designated critical habitat, that may occur within the boundary of your
proposed project and/or may be affected by your proposed project. The species list fulfills the
requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the
Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq. ).
New information based on updated surveys, changes in the abundance and distribution of
species, changed habitat conditions, or other factors could change this list. Please feel free to
contact us if you need more current information or assistance regarding the potential impacts to
federally proposed, listed, and candidate species and federally designated and proposed critical
habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the
Act, the accuracy of this species list should be verified after 90 days. This verification can be
completed formally or informally as desired. The Service recommends that verification be
completed by visiting the ECOS-IPaC website at regular intervals during project planning and
implementation for updates to species lists and information. An updated list may be requested
through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
The purpose of the Act is to provide a means whereby threatened and endangered species and the
ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the
Act and its implementing regulations (50 CFR 402 et seq. ), Federal agencies are required to
utilize their authorities to carry out programs for the conservation of threatened and endangered
species and to determine whether projects may affect threatened and endangered species and/or
designated critical habitat.
06/21/2017 Event Code: 06E24000-2017-E-03054 2
A Biological Assessment is required for construction projects (or other undertakings having
similar physical impacts) that are major Federal actions significantly affecting the quality of the
human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2)
(c)). For projects other than major construction activities, the Service suggests that a biological
evaluation similar to a Biological Assessment be prepared to determine whether the project may
affect listed or proposed species and/or designated or proposed critical habitat. Recommended
contents of a Biological Assessment are described at 50 CFR 402.12.
If a Federal agency determines, based on the Biological Assessment or biological evaluation, that
listed species and/or designated critical habitat may be affected by the proposed project, the
agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service
recommends that candidate species, proposed species and proposed critical habitat be addressed
within the consultation. More information on the regulations and procedures for section 7
consultation, including the role of permit or license applicants, can be found in the "Endangered
Species Consultation Handbook" at:
http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF
Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle
Protection Act (16 U.S.C. 668 et seq. ), and projects affecting these species may require
development of an eagle conservation plan
(http://www.fws.gov/windenergy/eagle_guidance.html). Additionally, wind energy projects
should follow the wind energy guidelines (http://www.fws.gov/windenergy/) for minimizing
impacts to migratory birds and bats.
Guidance for minimizing impacts to migratory birds for projects including communications
towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at:
http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/towers.htm;
http://www.towerkill.com; and
http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/comtow.html.
We appreciate your concern for threatened and endangered species. The Service encourages
Federal agencies to include conservation of threatened and endangered species into their project
planning to further the purposes of the Act. Please include the Consultation Tracking Number in
the header of this letter with any request for consultation or correspondence about your project
that you submit to our office.
Attachment(s):
Official Species List
USFWS National Wildlife Refuges and Fish Hatcheries
Migratory Birds
Wetlands
06/21/2017 Event Code: 06E24000-2017-E-03054 1
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the
requirement for Federal agencies to "request of the Secretary of the Interior information whether
any species which is listed or proposed to be listed may be present in the area of a proposed
action".
This species list is provided by:
Colorado Ecological Services Field Office
Denver Federal Center
P.O. Box 25486
Denver, CO 80225-0486
(303) 236-4773
06/21/2017 Event Code: 06E24000-2017-E-03054 2
Project Summary
Consultation Code: 06E24000-2017-SLI-1002
Event Code: 06E24000-2017-E-03054
Project Name: Spring Creek Place
Project Type: LAND - ACQUISITION
Project Description: This project will be developed on a platted tract located in the northeast
quarter of Section 23, Township 7 North, Range 69 West of the 6th PM.
The site is approximately 2.22 acres and contains two existing buildings
with associated surface parking. The site is divided topographically with
half of the site sloping to the northeast and the other half sloping to the
northwest at 1% to 5%. The site is currently zoned C-G (General
Commercial). The proposed land uses for this site will consist of standard
multi-family residential housing and structured parking.
Project Location:
Approximate location of the project can be viewed in Google Maps:
https://www.google.com/maps/place/40.560145196925504N105.07872485447731W
Counties: Larimer, CO
06/21/2017 Event Code: 06E24000-2017-E-03054 3
Endangered Species Act Species
There is a total of 14 threatened, endangered, or candidate species on your species list. Species
on this list should be considered in an effects analysis for your project and could include species
that exist in another geographic area. For example, certain fish may appear on the species list
because a project could affect downstream species. Note that 5 of these species should be
considered only under certain conditions. See the "Critical habitats" section below for those
critical habitats that lie wholly or partially within your project area. Please contact the designated
FWS office if you have questions.
Mammals
NAME STATUS
Canada Lynx (Lynx canadensis)
Population: Contiguous U.S. DPS
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/3652
Threatened
North American Wolverine (Gulo gulo luscus)
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/5123
Proposed
Threatened
Preble's Meadow Jumping Mouse (Zapus hudsonius preblei)
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/4090
Threatened
06/21/2017 Event Code: 06E24000-2017-E-03054 4
Birds
NAME STATUS
Least Tern (Sterna antillarum)
Population: interior pop.
No critical habitat has been designated for this species.
This species only needs to be considered under the following conditions:
Water-related activities/use in the N. Platte, S. Platte and Laramie River Basins may
affect listed species in Nebraska.
Species profile: https://ecos.fws.gov/ecp/species/8505
Endangered
Mexican Spotted Owl (Strix occidentalis lucida)
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/8196
Threatened
Piping Plover (Charadrius melodus)
Population: except Great Lakes watershed
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
This species only needs to be considered under the following conditions:
Water-related activities/use in the N. Platte, S. Platte and Laramie River Basins may
affect listed species in Nebraska.
Species profile: https://ecos.fws.gov/ecp/species/6039
Threatened
Whooping Crane (Grus americana)
Population: Wherever found, except where listed as an experimental population
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
This species only needs to be considered under the following conditions:
Water-related activities/use in the N. Platte, S. Platte and Laramie River Basins may
affect listed species in Nebraska.
Species profile: https://ecos.fws.gov/ecp/species/758
Endangered
Fishes
NAME STATUS
Greenback Cutthroat Trout (Oncorhynchus clarki stomias)
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/2775
Threatened
Pallid Sturgeon (Scaphirhynchus albus)
No critical habitat has been designated for this species.
This species only needs to be considered under the following conditions:
Water-related activities/use in the N. Platte, S. Platte and Laramie River Basins may
affect listed species in Nebraska.
Species profile: https://ecos.fws.gov/ecp/species/7162
Endangered
06/21/2017 Event Code: 06E24000-2017-E-03054 5
Insects
NAME STATUS
Arapahoe Snowfly (Arsapnia arapahoe)
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/9141
Candidate
Flowering Plants
NAME STATUS
Colorado Butterfly Plant (Gaura neomexicana var. coloradensis)
There is a final critical habitat designated for this species. Your location is outside the
designated critical habitat.
Species profile: https://ecos.fws.gov/ecp/species/6110
Threatened
North Park Phacelia (Phacelia formosula)
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/123
Endangered
Ute Ladies'-tresses (Spiranthes diluvialis)
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/2159
Threatened
Western Prairie Fringed Orchid (Platanthera praeclara)
No critical habitat has been designated for this species.
This species only needs to be considered under the following conditions:
Water-related activities/use in the N. Platte, S. Platte and Laramie River Basins may
affect listed species in Nebraska.
Species profile: https://ecos.fws.gov/ecp/species/1669
Threatened
Critical habitats
There are no critical habitats within your project area.
06/21/2017 Event Code: 06E24000-2017-E-03054 1
USFWS National Wildlife Refuges And Fish
Hatcheries
Any activity proposed on National Wildlife Refuge lands must undergo a 'Compatibility
Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any
questions or concerns.
There are no refuges or fish hatcheries within your project area.
06/21/2017 Event Code: 06E24000-2017-E-03054 1
1.
2.
3.
Migratory Birds
Certain birds are protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle
Protection Act .
Any activity that results in the take of migratory birds or eagles is prohibited unless authorized
by the U.S. Fish and Wildlife Service . There are no provisions for allowing the take of
migratory birds that are unintentionally killed or injured.
Any person or organization who plans or conducts activities that may result in the take of
migratory birds is responsible for complying with the appropriate regulations and implementing
appropriate conservation measures.
The Migratory Birds Treaty Act of 1918.
The Bald and Golden Eagle Protection Act of 1940.
50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)
The migratory birds species listed below are species of particular conservation concern (e.g.
Birds of Conservation Concern ) that may be potentially affected by activities in this location. It
is not a list of every bird species you may find in this location, nor a guarantee that all of the bird
species on this list will be found on or near this location. Although it is important to try to avoid
and minimize impacts to all birds, special attention should be made to avoid and minimize
impacts to birds of priority concern. To view available data on other bird species that may occur
in your project area, please visit the AKN Histogram Tools and Other Bird Data Resources . To
fully determine any potential effects to species, additional site-specific and project-specific
information is often required.
NAME SEASON(S)
Prairie Falcon (Falco mexicanus)
https://ecos.fws.gov/ecp/species/4736
On Land: Year-round
Lark Bunting (Calamospiza melanocorys) On Land: Breeding
American Bittern (Botaurus lentiginosus)
https://ecos.fws.gov/ecp/species/6582
On Land: Breeding
Dickcissel (Spiza americana) On Land: Breeding
Mccown's Longspur (Calcarius mccownii)
https://ecos.fws.gov/ecp/species/9292
On Land: Breeding
Red-headed Woodpecker (Melanerpes erythrocephalus) On Land: Breeding
Williamson's Sapsucker (Sphyrapicus thyroideus) On Land: Breeding
1
2
3
06/21/2017 Event Code: 06E24000-2017-E-03054 2
https://ecos.fws.gov/ecp/species/8832
Golden Eagle (Aquila chrysaetos)
https://ecos.fws.gov/ecp/species/1680
On Land: Year-round
Bald Eagle (Haliaeetus leucocephalus)
https://ecos.fws.gov/ecp/species/1626
On Land: Year-round
Black Rosy-finch (Leucosticte atrata)
https://ecos.fws.gov/ecp/species/9460
On Land: Year-round
Black Swift (Cypseloides niger)
https://ecos.fws.gov/ecp/species/8878
On Land: Breeding
Brewer's Sparrow (Spizella breweri)
https://ecos.fws.gov/ecp/species/9291
On Land: Breeding
Burrowing Owl (Athene cunicularia)
https://ecos.fws.gov/ecp/species/9737
On Land: Breeding
Cassin's Finch (Carpodacus cassinii)
https://ecos.fws.gov/ecp/species/9462
On Land: Year-round
Ferruginous Hawk (Buteo regalis)
https://ecos.fws.gov/ecp/species/6038
On Land: Year-round
Flammulated Owl (Otus flammeolus)
https://ecos.fws.gov/ecp/species/7728
On Land: Breeding
Lewis's Woodpecker (Melanerpes lewis)
https://ecos.fws.gov/ecp/species/9408
On Land: Breeding
Loggerhead Shrike (Lanius ludovicianus)
https://ecos.fws.gov/ecp/species/8833
On Land: Breeding
Long-billed Curlew (Numenius americanus)
https://ecos.fws.gov/ecp/species/5511
On Land: Breeding
Mountain Plover (Charadrius montanus)
https://ecos.fws.gov/ecp/species/3638
On Land: Breeding
Peregrine Falcon (Falco peregrinus)
https://ecos.fws.gov/ecp/species/8831
On Land: Breeding
Sage Thrasher (Oreoscoptes montanus)
https://ecos.fws.gov/ecp/species/9433
On Land: Breeding
Short-eared Owl (Asio flammeus)
https://ecos.fws.gov/ecp/species/9295
On Land: Wintering
06/21/2017 Event Code: 06E24000-2017-E-03054 3
Swainson's Hawk (Buteo swainsoni)
https://ecos.fws.gov/ecp/species/1098
On Land: Breeding
Virginia's Warbler (Vermivora virginiae)
https://ecos.fws.gov/ecp/species/9441
On Land: Breeding
Western Grebe (aechmophorus occidentalis)
https://ecos.fws.gov/ecp/species/6743
On Land: Breeding
Willow Flycatcher (Empidonax traillii)
https://ecos.fws.gov/ecp/species/3482
On Land: Breeding
Rufous Hummingbird (selasphorus rufus)
https://ecos.fws.gov/ecp/species/8002
On Land: Migrating
Additional information can be found using the following links:
Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/
birds-of-conservation-concern.php
Conservation measures for birds
http://www.fws.gov/birds/management/project-assessment-tools-and-guidance/
conservation-measures.php
Year-round bird occurrence data
http://www.birdscanada.org/birdmon/default/datasummaries.jsp
06/21/2017 Event Code: 06E24000-2017-E-03054 1
Wetlands
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section
404 of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of
Engineers District .
There are no wetlands within your project area.
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX D – SOILS INFORMATION
Soil Information for All Uses
Soil Properties and Qualities
The Soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Qualities and Features
Soil qualities are behavior and performance attributes that are not directly
measured, but are inferred from observations of dynamic conditions and from soil
properties. Example soil qualities include natural drainage, and frost action. Soil
features are attributes that are not directly part of the soil. Example soil features
include slope and depth to restrictive layer. These features can greatly impact the
use and management of the soil.
Hydrologic Soil Group
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.
5
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.
Custom Soil Resource Report
6
7
Custom Soil Resource Report
Map—Hydrologic Soil Group
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
499910 499930 499950 499970 499990 500010 500030 500050 500070
499910 499930 499950 499970 499990 500010 500030 500050 500070
40° 34' 46'' N
105° 0' 4'' W
40° 34' 46'' N
104° 59' 56'' W
40° 34' 39'' N
105° 0' 4'' W
40° 34' 39'' N
104° 59' 56'' W
N
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
0 50 100 200 300
Feet
0 15 30 60 90
Meters
Map Scale: 1:1,120 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Lines
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Points
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
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.
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
Table—Hydrologic Soil Group
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
73 Nunn clay loam, 0 to 1
percent slopes
C 2.8 96.4%
74 Nunn clay loam, 1 to 3
percent slopes
C 0.1 3.6%
Totals for Area of Interest 3.0 100.0%
Rating Options—Hydrologic Soil Group
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
Custom Soil Resource Report
9
Soil Information for All Uses
Soil Properties and Qualities
The Soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Erosion Factors
Soil Erosion Factors are soil properties and interpretations used in evaluating the
soil for potential erosion. Example soil erosion factors can include K factor for the
whole soil or on a rock free basis, T factor, wind erodibility group and wind erodibility
index.
K Factor, Whole Soil
Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by
water. Factor K is one of six factors used in the Universal Soil Loss Equation
(USLE) and the Revised Universal Soil Loss Equation (RUSLE) to predict the
average annual rate of soil loss by sheet and rill erosion in tons per acre per year.
The estimates are based primarily on percentage of silt, sand, and organic matter
and on soil structure and saturated hydraulic conductivity (Ksat). Values of K range
from 0.02 to 0.69. Other factors being equal, the higher the value, the more
susceptible the soil is to sheet and rill erosion by water.
"Erosion factor Kw (whole soil)" indicates the erodibility of the whole soil. The
estimates are modified by the presence of rock fragments.
5
6
Custom Soil Resource Report
Map—K Factor, Whole Soil
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
499910 499930 499950 499970 499990 500010 500030 500050 500070
499910 499930 499950 499970 499990 500010 500030 500050 500070
40° 34' 46'' N
105° 0' 4'' W
40° 34' 46'' N
104° 59' 56'' W
40° 34' 39'' N
105° 0' 4'' W
40° 34' 39'' N
104° 59' 56'' W
N
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
0 50 100 200 300
Feet
0 15 30 60 90
Meters
Map Scale: 1:1,120 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
.02
.05
.10
.15
.17
.20
.24
.28
.32
.37
.43
.49
.55
.64
Not rated or not available
Soil Rating Lines
.02
.05
.10
.15
.17
.20
.24
.28
.32
.37
.43
.49
.55
.64
Not rated or not available
Soil Rating Points
.02
.05
.10
.15
.17
.20
.24
.28
.32
.37
.43
.49
.55
.64
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Table—K Factor, Whole Soil
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
73 Nunn clay loam, 0 to 1
percent slopes
.32 2.8 96.4%
74 Nunn clay loam, 1 to 3
percent slopes
.28 0.1 3.6%
Totals for Area of Interest 3.0 100.0%
Rating Options—K Factor, Whole Soil
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
Layer Options (Horizon Aggregation Method): Surface Layer (Not applicable)
Custom Soil Resource Report
8
Soil Information for All Uses
Soil Properties and Qualities
The Soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Erosion Factors
Soil Erosion Factors are soil properties and interpretations used in evaluating the
soil for potential erosion. Example soil erosion factors can include K factor for the
whole soil or on a rock free basis, T factor, wind erodibility group and wind erodibility
index.
Wind Erodibility Group
A wind erodibility group (WEG) consists of soils that have similar properties
affecting their susceptibility to wind erosion in cultivated areas. The soils assigned
to group 1 are the most susceptible to wind erosion, and those assigned to group 8
are the least susceptible.
5
6
Custom Soil Resource Report
Map—Wind Erodibility Group
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
4491880 4491900 4491920 4491940 4491960 4491980 4492000 4492020 4492040 4492060 4492080 4492100
499910 499930 499950 499970 499990 500010 500030 500050 500070
499910 499930 499950 499970 499990 500010 500030 500050 500070
40° 34' 46'' N
105° 0' 4'' W
40° 34' 46'' N
104° 59' 56'' W
40° 34' 39'' N
105° 0' 4'' W
40° 34' 39'' N
104° 59' 56'' W
N
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
0 50 100 200 300
Feet
0 15 30 60 90
Meters
Map Scale: 1:1,120 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
1
2
3
4
4L
5
6
7
8
Not rated or not available
Soil Rating Lines
1
2
3
4
4L
5
6
7
8
Not rated or not available
Soil Rating Points
1
2
3
4
4L
5
6
7
8
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
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.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Table—Wind Erodibility Group
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
73 Nunn clay loam, 0 to 1
percent slopes
6 2.8 96.4%
74 Nunn clay loam, 1 to 3
percent slopes
6 0.1 3.6%
Totals for Area of Interest 3.0 100.0%
Rating Options—Wind Erodibility Group
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie-break Rule: Lower
Custom Soil Resource Report
8
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX E – IDENTIFICATION OF POLLUTANT SOURCES
Outdoor Storage of Materials Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
Vehicle Equipment Maintenance and Fueling Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
Routine Maintenance Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
Onsite Waste Management Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
Non-Industrial Waste Sources Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
Additional Pollutant Sources Log
Identification
of Pollutant
Date
Onsite
Date
Removed
Containment
Method
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX F – CONTROL MEASURE DETAILS
BMPs provided for reference based upon the City and Urban Drainage and Flood Control District
published standard details. Contractor may utilize these standard practices or approved alternate
methods to minimize erosion and sediment control related to construction activities.
Concrete Washout Area
Construction Fence
Construction Phasing/Sequencing
Covering Outdoor Storage and Handling Areas
Curb Socks
Dewatering Operations
Good Housekeeping Practices
Rock Sock
Silt Fence
Spill Prevention Containment and Control
Stabilized Staging Area
Stockpile Management
Street Sweeping
Temporary and Permanent Seeding
Vehicle Maintenance and Fueling
Vehicle Tracking Control
Wind Erosion / Dust Control
Concrete Washout Area (CWA) MM-1
November 2010 Urban Drainage and Flood Control District CWA-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph CWA-1. Example of concrete washout area. Note gravel
tracking pad for access and sign.
Description
Concrete waste management involves
designating and properly managing a
specific area of the construction site as a
concrete washout area. A concrete
washout area can be created using one of
several approaches designed to receive
wash water from washing of tools and
concrete mixer chutes, liquid concrete
waste from dump trucks, mobile batch
mixers, or pump trucks. Three basic
approaches are available: excavation of a
pit in the ground, use of an above ground
storage area, or use of prefabricated haul-
away concrete washout containers.
Surface discharges of concrete washout
water from construction sites are prohibited.
Appropriate Uses
Concrete washout areas must be designated on all sites that will generate concrete wash water or liquid
concrete waste from onsite concrete mixing or concrete delivery.
Because pH is a pollutant of concern for washout activities, when unlined pits are used for concrete
washout, the soil must have adequate buffering capacity to result in protection of state groundwater
standards; otherwise, a liner/containment must be used. The following management practices are
recommended to prevent an impact from unlined pits to groundwater:
The use of the washout site should be temporary (less than 1 year), and
The washout site should be not be located in an area where shallow groundwater may be present, such
as near natural drainages, springs, or wetlands.
Design and Installation
Concrete washout activities must be conducted in a manner that does not contribute pollutants to surface
waters or stormwater runoff. Concrete washout areas may be lined or unlined excavated pits in the
ground, commercially manufactured prefabricated washout containers, or aboveground holding areas
constructed of berms, sandbags or straw bales with a plastic liner.
Although unlined washout areas may be used, lined pits may be required to protect groundwater under
certain conditions.
Do not locate an unlined washout area within 400 feet
of any natural drainage pathway or waterbody or
within 1,000 feet of any wells or drinking water
sources. Even for lined concrete washouts, it is
advisable to locate the facility away from waterbodies
and drainage paths. If site constraints make these
Concrete Washout Area
Functions
Erosion Control No
Sediment Control No
Site/Material Management Yes
MM-1 Concrete Washout Area (CWA)
CWA-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
setbacks infeasible or if highly permeable soils exist in the area, then the pit must be installed with an
impermeable liner (16 mil minimum thickness) or surface storage alternatives using prefabricated
concrete washout devices or a lined aboveground storage area should be used.
Design details with notes are provided in Detail CWA-1 for pits and CWA-2 for aboveground storage
areas. Pre-fabricated concrete washout container information can be obtained from vendors.
Maintenance and Removal
A key consideration for concrete washout areas is to ensure that adequate signage is in place identifying
the location of the washout area. Part of inspecting and maintaining washout areas is ensuring that
adequate signage is provided and in good repair and that the washout area is being used, as opposed to
washout in non-designated areas of the site.
Remove concrete waste in the washout area, as needed to maintain BMP function (typically when filled to
about two-thirds of its capacity). Collect concrete waste and deliver offsite to a designated disposal
location.
Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any
contaminated soils, must be removed from the site to prevent on-site disposal of solid waste. If the wash
water is allowed to evaporate and the concrete hardens, it may be recycled.
Photograph CWA-3. Earthen concrete washout. Photo
courtesy of CDOT.
Photograph CWA-2. Prefabricated concrete washout. Photo
courtesy of CDOT.
Concrete Washout Area (CWA) MM-1
November 2010 Urban Drainage and Flood Control District CWA-3
Urban Storm Drainage Criteria Manual Volume 3
MM-1 Concrete Washout Area (CWA)
CWA-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Construction Fence (CF) SM-3
November 2010 Urban Drainage and Flood Control District CF-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph CF-1. A construction fence helps delineate areas where
existing vegetation is being protected. Photo courtesy of Douglas
County.
Description
A construction fence restricts site access
to designated entrances and exits,
delineates construction site boundaries,
and keeps construction out of sensitive
areas such as natural areas to be
preserved as open space, wetlands and
riparian areas.
Appropriate Uses
A construction fence can be used to
delineate the site perimeter and locations
within the site where access is restricted
to protect natural resources such as
wetlands, waterbodies, trees, and other
natural areas of the site that should not be
disturbed.
If natural resource protection is an objective, then the construction fencing should be used in combination
with other perimeter control BMPs such as silt fence, sediment control logs or similar measures.
Design and Installation
Construction fencing may be chain link or plastic mesh and should be installed following manufacturer’s
recommendations. See Detail CF-1 for typical installations.
Do not place construction fencing in areas within work limits of machinery.
Maintenance and Removal
Inspect fences for damage; repair or replace as necessary.
Fencing should be tight and any areas with slumping or fallen posts should be reinstalled.
Fencing should be removed once construction is complete.
Construction Fence
Functions
Erosion Control No
Sediment Control No
Site/Material Management Yes
SM-3 Construction Fence (CF)
CF-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Construction Fence (CF) SM-3
November 2010 Urban Drainage and Flood Control District CF-3
Urban Storm Drainage Criteria Manual Volume 3
Construction Phasing/Sequencing (CP) SM-1
November 2010 Urban Drainage and Flood Control District CP-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph CP-1. Construction phasing to avoid disturbing the
entire area at one time. Photo courtesy of WWE.
Description
Effective construction site management
to minimize erosion and sediment
transport includes attention to
construction phasing, scheduling, and
sequencing of land disturbing activities.
On most construction projects, erosion
and sediment controls will need to be
adjusted as the project progresses and
should be documented in the SWMP.
Construction phasing refers to
disturbing only part of a site at a time to
limit the potential for erosion from
dormant parts of a site. Grading
activities and construction are completed
and soils are effectively stabilized on one
part of a site before grading and
construction begins on another portion of the site.
Construction sequencing or scheduling refers to a specified work schedule that coordinates the timing of
land disturbing activities and the installation of erosion and sediment control practices.
Appropriate Uses
All construction projects can benefit from upfront planning to phase and sequence construction activities
to minimize the extent and duration of disturbance. Larger projects and linear construction projects may
benefit most from construction sequencing or phasing, but even small projects can benefit from
construction sequencing that minimizes the duration of disturbance.
Typically, erosion and sediment controls needed at a site will change as a site progresses through the
major phases of construction. Erosion and sediment control practices corresponding to each phase of
construction must be documented in the SWMP.
Design and Installation
BMPs appropriate to the major phases of development should be identified on construction drawings. In
some cases, it will be necessary to provide several drawings showing construction-phase BMPs placed
according to stages of development (e.g., clearing and grading, utility installation, active construction,
final stabilization). Some municipalities in the Denver area set maximum sizes for disturbed area
associated with phases of a construction project. Additionally, requirements for phased construction
drawings vary among local governments within the UDFCD boundary. Some local governments require
separate erosion and sediment control drawings for initial
BMPs, interim conditions (in active construction), and final
stabilization.
Construction Scheduling
Functions
Erosion Control Moderate
Sediment Control Moderate
Site/Material Management Yes
SM-1 Construction Phasing/Sequencing (CP)
CP-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Typical construction phasing BMPs include:
Limit the amount of disturbed area at any given time on a site to the extent practical. For example, a
100-acre subdivision might be constructed in five phases of 20 acres each.
If there is carryover of stockpiled material from one phase to the next, position carryover material in a
location easily accessible for the pending phase that will not require disturbance of stabilized areas to
access the stockpile. Particularly with regard to efforts to balance cut and fill at a site, careful
planning for location of stockpiles is important.
Typical construction sequencing BMPs include:
Sequence construction activities to minimize duration of soil disturbance and exposure. For example,
when multiple utilities will occupy the same trench, schedule installation so that the trench does not
have to be closed and opened multiple times.
Schedule site stabilization activities (e.g., landscaping, seeding and mulching, installation of erosion
control blankets) as soon as feasible following grading.
Install initial erosion and sediment control practices before construction begins. Promptly install
additional BMPs for inlet protection, stabilization, etc., as construction activities are completed.
Table CP-1 provides typical sequencing of construction activities and associated BMPs.
Maintenance and Removal
When the construction schedule is altered, erosion and sediment control measures in the SWMP and
construction drawings should be appropriately adjusted to reflect actual "on the ground" conditions at the
construction site. Be aware that changes in construction schedules can have significant implications for
site stabilization, particularly with regard to establishment of vegetative cover.
Construction Phasing/Sequencing (CP) SM-1
November 2010 Urban Drainage and Flood Control District CP-3
Urban Storm Drainage Criteria Manual Volume 3
Table CP-1. Typical Phased BMP Installation for Construction Projects
Project
Phase BMPs
Pre-
disturbance,
Site Access
Install sediment controls downgradient of access point (on paved streets this may consist
of inlet protection).
Establish vehicle tracking control at entrances to paved streets. Fence as needed.
Use construction fencing to define the boundaries of the project and limit access to areas of
the site that are not to be disturbed.
Note: it may be necessary to protect inlets in the general vicinity of the site, even if not
downgradient, if there is a possibility that sediment tracked from the site could contribute
to the inlets.
Site Clearing
and Grubbing
Install perimeter controls as needed on downgradient perimeter of site (silt fence, wattles,
etc).
Limit disturbance to those areas planned for disturbance and protect undisturbed areas
within the site (construction fence, flagging, etc).
Preserve vegetative buffer at site perimeter.
Create stabilized staging area.
Locate portable toilets on flat surfaces away from drainage paths. Stake in areas
susceptible to high winds.
Construct concrete washout area and provide signage.
Establish waste disposal areas.
Install sediment basins.
Create dirt perimeter berms and/or brush barriers during grubbing and clearing.
Separate and stockpile topsoil, leave roughened and/or cover.
Protect stockpiles with perimeter control BMPs. Stockpiles should be located away from
drainage paths and should be accessed from the upgradient side so that perimeter controls
can remain in place on the downgradient side. Use erosion control blankets, temporary
seeding, and/or mulch for stockpiles that will be inactive for an extended period.
Leave disturbed area of site in a roughened condition to limit erosion. Consider temporary
revegetation for areas of the site that have been disturbed but that will be inactive for an
extended period.
Water to minimize dust but not to the point that watering creates runoff.
SM-1 Construction Phasing/Sequencing (CP)
CP-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Project
Phase BMPs
Utility And
Infrastructure
Installation
In Addition to the Above BMPs:
Close trench as soon as possible (generally at the end of the day).
Use rough-cut street control or apply road base for streets that will not be promptly paved.
Provide inlet protection as streets are paved and inlets are constructed.
Protect and repair BMPs, as necessary.
Perform street sweeping as needed.
Building
Construction
In Addition to the Above BMPs:
Implement materials management and good housekeeping practices for home building
activities.
Use perimeter controls for temporary stockpiles from foundation excavations.
For lots adjacent to streets, lot-line perimeter controls may be necessary at the back of
curb.
Final Grading
In Addition to the Above BMPs:
Remove excess or waste materials.
Remove stored materials.
Final
Stabilization
In Addition to the Above BMPs:
Seed and mulch/tackify.
Seed and install blankets on steep slopes.
Remove all temporary BMPs when site has reached final stabilization.
Covering Outdoor Storage and Handling Areas S-1
November 2010 Urban Drainage and Flood Control District CS-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph CS-1. Covered truck loading dock helps reduce
exposure of materials to runoff.
Description
When raw materials, byproducts,
finished products, storage tanks, and
other materials are stored or handled
outdoors, stormwater runoff that comes
in contact with the materials can become
contaminated. Proactively covering
storage and handling areas can be an
effective source control for such areas.
Coverings can be permanent or
temporary and consist of tarp, plastic
sheeting, roofing, enclosed structures, or
other approaches that reduce exposure of
materials to rainfall, runoff, and wind.
Appropriate Uses
Covering is appropriate for areas where
solids (e.g., gravel, salt, compost, building materials) or liquids (e.g., oil, gas, tar) are stored, prepared, or
transferred. Consider covering the following areas:
Loading and Unloading: Loading and unloading operations usually take place outside on docks,
truck terminals, or outside storage or staging areas at industrial and commercial sites. Materials
spilled, leaked, or lost during loading and unloading may collect in the soil or other surfaces and be
carried away by runoff, or when the area is cleaned. In addition to spills to the ground surface,
rainfall may wash pollutants off machinery used to unload and load materials. Materials may be
spilled during transfer between storage facilities and truck or rail car during pumping of liquids,
pneumatic transfer of dry chemicals, mechanical transfer using conveyor systems, or transfers of
bags, boxes, drums, or other containers by forklift, trucks, or other material handling equipment.
Aboveground Tanks/Liquid Storage: Accidental releases of chemicals from above-ground liquid
storage tanks can contaminate stormwater with a variety of pollutants. Several common causes of
accidental releases from above-ground tanks include: external corrosion and structural failure,
problems due to improper installation, spills and overfills due to operator error, failure of piping
systems, and leaks or spills during pumping of liquids or gases between trucks or rail cars to a storage
facility.
Outside Manufacturing: Common outside manufacturing activities may include parts assembly,
rock grinding or crushing, metals painting or coating, grinding or sanding, degreasing, concrete
manufacturing, parts cleaning or operations that use hazardous materials. These activities can result
in dry deposition of dust, metal and wood shavings and liquid discharges of dripping or leaking fluids
from equipment or processes and other residuals being washed away in storm runoff. In addition to
the manufacturing process, outside storage of materials and waste products may occur in conjunction
with outside manufacturing.
Waste Management: Wastes spilled, leached, or lost from outdoor waste management areas or
outside manufacturing activities may accumulate in soils or on other surfaces and be carried away by
rainfall runoff. There is also the potential for liquid wastes from surface impoundments to overflow
to surface waters or soak the soil where they can be picked up by runoff. Possible stormwater
S-1 Covering Outdoor Storage and Handling Areas
CS-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
contaminants include toxic compounds, oil and grease, oxygen-demanding organics, paints and
solvents, heavy metals and high levels of suspended solids. Lack of coverage of waste receptacles
can result in rainwater seeping through the material and collecting contaminants or the material being
blown around the site and into the stormwater collection system. Typical contaminant sources
include: landfills, waste piles, wastewater and solid waste treatment and disposal, land application
sites, dumpsters, or unlabeled drums.
Outside Storage of Materials: Raw materials, intermediate products, byproducts, process residuals,
finished products, containers, and materials storage areas can be sources of pollutants such as metals,
oils and grease, sediment and other contaminants. Pollutant transport can occur when solid materials
wash off or dissolve into water, or when spills or leaks occur.
Salt Storage: Salt left exposed to rain or snow may migrate to the storm sewer or contaminate soils.
Salt spilled or blown onto the ground during loading or unloading will dissolve in stormwater runoff.
Stormwater contaminated with salt in high concentrations can be harmful to vegetation, aquatic life
and groundwater quality. Typical contaminant sources include salt stored outside in piles or bags, salt
loading and unloading areas, and salt/sand storage piles used for deicing operations.
Practice Guidelines
Where practical, conduct operations indoors. Where impractical, select an appropriate temporary or
permanent covering to reduce exposure of materials to rainfall and runoff.
The type of covering selected depends on a variety of factors such as the type and size of activity
being conducted and materials involved. Types of cover range from relatively inexpensive tarps and
plastic sheeting to overhead structures or fully enclosed buildings equipped with ventilation, lighting,
etc.
Covering practices should be combined with Good Housekeeping BMPs to be most effective. Spill
containment berms are also often needed at industrial sites.
Measures such as tarps and plastic sheets typically require more frequent inspection and maintenance
than constructed facilities.
Dewatering Operations (DW) SM-9
November 2010 Urban Drainage and Flood Control District DW-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph DW-1. A relatively small dewatering operation using straw
bales and a dewatering bag.
Photograph DW-2. Dewatering bags used for a relatively large
dewatering operation.
Description
The BMPs selected for construction
dewatering vary depending on site-
specific features such as soils,
topography, anticipated discharge
quantities, and discharge location.
Dewatering typically involves pumping
water from an inundated area to a BMP,
and then downstream to a receiving
waterway, sediment basin, or well-
vegetated area. Dewatering typically
involves use of several BMPs in
sequence.
Appropriate Uses
Dewatering operations are used when an
area of the construction site needs to be
dewatered as the result of a large storm
event, groundwater, or existing ponding
conditions. This can occur during deep
excavation, utility trenching, and wetland
or pond excavation.
Design and Installation
Dewatering techniques will vary
depending on site conditions. However,
all dewatering discharges must be treated
to remove sediment before discharging
from the construction site. Discharging
water into a sediment trap or basin is an
acceptable treatment option. Water may
also be treated using a dewatering filter bag,
and a series of straw bales or sediment logs. If these previous options are not feasible due to space or the
ability to passively treat the discharge to remove sediment, then a settling tank or an active treatment
system may need to be utilized. Settling tanks are manufactured tanks with a series of baffles to promote
settling. Flocculants can also be added to the tank to induce more rapid settling. This is an approach
sometimes used on highly urbanized construction sites. Contact the state agency for special requirements
prior to using flocculents and land application techniques.
Some commonly used methods to handle the pumped
water without surface discharge include land application
to vegetated areas through a perforated discharge hose
(i.e., the "sprinkler method") or dispersal from a water
truck for dust control.
Dewatering Operations
Functions
Erosion Control Moderate
Sediment Control Yes
Site/Material Management Yes
SM-9 Dewatering Operations (DW)
DW-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Dewatering discharges to non-paved areas must minimize the potential for scour at the discharge point
either using a velocity dissipation device or dewatering filter bag.
Design Details are provided for these types of dewatering situations:
DW-1. Dewatering for Pond Already Filled with Water
DW-2 Dewatering Sump for Submersed Pump
DW-3 Sump Discharge Settling Basin
DW-4 Dewatering Filter Bag
Maintenance and Removal
When a sediment basin or trap is used to enable settling of sediment from construction dewatering
discharges, inspect the basin for sediment accumulation. Remove sediment prior to the basin or trap
reaching half full. Inspect treatment facilities prior to any dewatering activity. If using a sediment
control practice such as a sediment trap or basin, complete all maintenance requirements as described in
the fact sheets prior to dewatering.
Properly dispose of used dewatering bags, as well as sediment removed from the dewatering BMPs.
Depending on the size of the dewatering operation, it may also be necessary to revegetate or otherwise
stabilize the area where the dewatering operation was occurring.
Dewatering Operations (DW) SM-9
November 2010 Urban Drainage and Flood Control District DW-3
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SM-9 Dewatering Operations (DW)
DW-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Dewatering Operations (DW) SM-9
November 2010 Urban Drainage and Flood Control District DW-5
Urban Storm Drainage Criteria Manual Volume 3
Good Housekeeping Practices (GH) MM-3
November 2010 Urban Drainage and Flood Control District GH-1
Urban Storm Drainage Criteria Manual Volume 3
Photographs GH-1 and GH-2. Proper materials
storage and secondary containment for fuel tanks
are important good housekeeping practices. Photos
courtesy of CDOT and City of Aurora.
Description
Implement construction site good housekeeping practices to
prevent pollution associated with solid, liquid and hazardous
construction-related materials and wastes. Stormwater
Management Plans (SWMPs) should clearly specify BMPs
including these good housekeeping practices:
Provide for waste management.
Establish proper building material staging areas.
Designate paint and concrete washout areas.
Establish proper equipment/vehicle fueling and
maintenance practices.
Control equipment/vehicle washing and allowable non-
stormwater discharges.
Develop a spill prevention and response plan.
Acknowledgement: This Fact Sheet is based directly on
EPA guidance provided in Developing Your Stormwater
Pollution Prevent Plan (EPA 2007).
Appropriate Uses
Good housekeeping practices are necessary at all construction sites.
Design and Installation
The following principles and actions should be addressed in SWMPs:
Provide for Waste Management. Implement management procedures and practices to prevent or
reduce the exposure and transport of pollutants in stormwater from solid, liquid and sanitary wastes
that will be generated at the site. Practices such as trash disposal, recycling, proper material handling,
and cleanup measures can reduce the potential for stormwater runoff to pick up construction site
wastes and discharge them to surface waters. Implement a comprehensive set of waste-management
practices for hazardous or toxic materials, such as paints, solvents, petroleum products, pesticides,
wood preservatives, acids, roofing tar, and other materials. Practices should include storage,
handling, inventory, and cleanup procedures, in case of spills. Specific practices that should be
considered include:
Solid or Construction Waste
o Designate trash and bulk waste-collection areas on-
site.
Good Housekeeping
Functions
Erosion Control No
Sediment Control No
Site/Material Management Yes
MM-3 Good Housekeeping Practices (GH)
GH-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Photograph GH-3. Locate portable toilet facilities on level
surfaces away from waterways and storm drains. Photo
courtesy of WWE.
o Recycle materials whenever possible (e.g., paper, wood, concrete, oil).
o Segregate and provide proper disposal options for hazardous material wastes.
o Clean up litter and debris from the construction site daily.
o Locate waste-collection areas away from streets, gutters, watercourses, and storm drains. Waste-
collection areas (dumpsters, and such) are often best located near construction site entrances to
minimize traffic on disturbed soils. Consider secondary containment around waste collection
areas to minimize the likelihood of contaminated discharges.
o Empty waste containers before they are full and overflowing.
Sanitary and Septic Waste
o Provide convenient, well-maintained, and properly located toilet facilities on-site.
o Locate toilet facilities away from storm drain inlets and waterways to prevent accidental spills
and contamination of stormwater.
o Maintain clean restroom facilities and empty portable toilets regularly.
o Where possible, provide secondary containment pans under portable toilets.
o Provide tie-downs or stake-downs for portable toilets.
o Educate employees, subcontractors, and suppliers on locations of facilities.
o Treat or dispose of sanitary and septic waste in accordance with state or local regulations. Do not
discharge or bury wastewater at the construction site.
o Inspect facilities for leaks. If found, repair or replace immediately.
o Special care is necessary during maintenance (pump out) to ensure that waste and/or biocide are
not spilled on the ground.
Hazardous Materials and Wastes
o Develop and implement employee and
subcontractor education, as needed, on
hazardous and toxic waste handling,
storage, disposal, and cleanup.
o Designate hazardous waste-collection
areas on-site.
o Place all hazardous and toxic material
wastes in secondary containment.
Good Housekeeping Practices (GH) MM-3
November 2010 Urban Drainage and Flood Control District GH-3
Urban Storm Drainage Criteria Manual Volume 3
o Hazardous waste containers should be inspected to ensure that all containers are labeled properly
and that no leaks are present.
Establish Proper Building Material Handling and Staging Areas. The SWMP should include
comprehensive handling and management procedures for building materials, especially those that are
hazardous or toxic. Paints, solvents, pesticides, fuels and oils, other hazardous materials or building
materials that have the potential to contaminate stormwater should be stored indoors or under cover
whenever possible or in areas with secondary containment. Secondary containment measures prevent
a spill from spreading across the site and may include dikes, berms, curbing, or other containment
methods. Secondary containment techniques should also ensure the protection of groundwater.
Designate staging areas for activities such as fueling vehicles, mixing paints, plaster, mortar, and
other potential pollutants. Designated staging areas enable easier monitoring of the use of materials
and clean up of spills. Training employees and subcontractors is essential to the success of this
pollution prevention principle. Consider the following specific materials handling and staging
practices:
o Train employees and subcontractors in proper handling and storage practices.
o Clearly designate site areas for staging and storage with signs and on construction drawings.
Staging areas should be located in areas central to the construction site. Segment the staging area
into sub-areas designated for vehicles, equipment, or stockpiles. Construction entrances and exits
should be clearly marked so that delivery vehicles enter/exit through stabilized areas with vehicle
tracking controls (See Vehicle Tracking Control Fact Sheet).
o Provide storage in accordance with Spill Protection, Control and Countermeasures (SPCC)
requirements and plans and provide cover and impermeable perimeter control, as necessary, for
hazardous materials and contaminated soils that must be stored on site.
o Ensure that storage containers are regularly inspected for leaks, corrosion, support or foundation
failure, or other signs of deterioration and tested for soundness.
o Reuse and recycle construction materials when possible.
Designate Concrete Washout Areas. Concrete contractors should be encouraged to use the washout
facilities at their own plants or dispatch facilities when feasible; however, concrete washout
commonly occurs on construction sites. If it is necessary to provide for concrete washout areas on-
site, designate specific washout areas and design facilities to handle anticipated washout water.
Washout areas should also be provided for paint and stucco operations. Because washout areas can
be a source of pollutants from leaks or spills, care must be taken with regard to their placement and
proper use. See the Concrete Washout Area Fact Sheet for detailed guidance.
Both self-constructed and prefabricated washout containers can fill up quickly when concrete, paint,
and stucco work are occurring on large portions of the site. Be sure to check for evidence that
contractors are using the washout areas and not dumping materials onto the ground or into drainage
facilities. If the washout areas are not being used regularly, consider posting additional signage,
relocating the facilities to more convenient locations, or providing training to workers and
contractors.
When concrete, paint, or stucco is part of the construction process, consider these practices which will
help prevent contamination of stormwater. Include the locations of these areas and the maintenance
and inspection procedures in the SWMP.
MM-3 Good Housekeeping Practices (GH)
GH-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
o Do not washout concrete trucks or equipment into storm drains, streets, gutters, uncontained
areas, or streams. Only use designated washout areas.
o Establish washout areas and advertise their locations with signs. Ensure that signage remains in
good repair.
o Provide adequate containment for the amount of wash water that will be used.
o Inspect washout structures daily to detect leaks or tears and to identify when materials need to be
removed.
o Dispose of materials properly. The preferred method is to allow the water to evaporate and to
recycle the hardened concrete. Full service companies may provide dewatering services and
should dispose of wastewater properly. Concrete wash water can be highly polluted. It should
not be discharged to any surface water, storm sewer system, or allowed to infiltrate into the
ground in the vicinity of waterbodies. Washwater should not be discharged to a sanitary sewer
system without first receiving written permission from the system operator.
Establish Proper Equipment/Vehicle Fueling and Maintenance Practices. Create a clearly
designated on-site fueling and maintenance area that is clean and dry. The on-site fueling area should
have a spill kit, and staff should know how to use it. If possible, conduct vehicle fueling and
maintenance activities in a covered area. Consider the following practices to help prevent the
discharge of pollutants to stormwater from equipment/vehicle fueling and maintenance. Include the
locations of designated fueling and maintenance areas and inspection and maintenance procedures in
the SWMP.
o Train employees and subcontractors in proper fueling procedures (stay with vehicles during
fueling, proper use of pumps, emergency shutoff valves, etc.).
o Inspect on-site vehicles and equipment regularly for leaks, equipment damage, and other service
problems.
o Clearly designate vehicle/equipment service areas away from drainage facilities and watercourses
to prevent stormwater run-on and runoff.
o Use drip pans, drip cloths, or absorbent pads when replacing spent fluids.
o Collect all spent fluids, store in appropriate labeled containers in the proper storage areas, and
recycle fluids whenever possible.
Control Equipment/Vehicle Washing and Allowable Non-Stormwater Discharges. Implement
practices to prevent contamination of surface and groundwater from equipment and vehicle wash
water. Representative practices include:
o Educate employees and subcontractors on proper washing procedures.
o Use off-site washing facilities, when available.
o Clearly mark the washing areas and inform workers that all washing must occur in this area.
o Contain wash water and treat it using BMPs. Infiltrate washwater when possible, but maintain
separation from drainage paths and waterbodies.
Good Housekeeping Practices (GH) MM-3
November 2010 Urban Drainage and Flood Control District GH-5
Urban Storm Drainage Criteria Manual Volume 3
o Use high-pressure water spray at vehicle washing facilities without detergents. Water alone can
remove most dirt adequately.
o Do not conduct other activities, such as vehicle repairs, in the wash area.
o Include the location of the washing facilities and the inspection and maintenance procedures in
the SWMP.
Develop a Spill Prevention and Response Plan. Spill prevention and response procedures must be
identified in the SWMP. Representative procedures include identifying ways to reduce the chance of
spills, stop the source of spills, contain and clean up spills, dispose of materials contaminated by
spills, and train personnel responsible for spill prevention and response. The plan should also specify
material handling procedures and storage requirements and ensure that clear and concise spill cleanup
procedures are provided and posted for areas in which spills may potentially occur. When developing
a spill prevention plan, include the following:
o Note the locations of chemical storage areas, storm drains, tributary drainage areas, surface
waterbodies on or near the site, and measures to stop spills from leaving the site.
o Provide proper handling and safety procedures for each type of waste. Keep Material Safety Data
Sheets (MSDSs) for chemical used on site with the SWMP.
o Establish an education program for employees and subcontractors on the potential hazards to
humans and the environment from spills and leaks.
o Specify how to notify appropriate authorities, such as police and fire departments, hospitals, or
municipal sewage treatment facilities to request assistance. Emergency procedures and contact
numbers should be provided in the SWMP and posted at storage locations.
o Describe the procedures, equipment and materials for immediate cleanup of spills and proper
disposal.
o Identify personnel responsible for implementing the plan in the event of a spill. Update the spill
prevention plan and clean up materials as changes occur to the types of chemicals stored and used
at the facility.
MM-3 Good Housekeeping Practices (GH)
GH-6 Urban Drainage and Flood Control District November 2010
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Spill Prevention, Control, and Countermeasure (SPCC) Plan
Construction sites may be subject to 40 CFR Part 112 regulations that require the preparation and
implementation of a SPCC Plan to prevent oil spills from aboveground and underground storage tanks.
The facility is subject to this rule if it is a non-transportation-related facility that:
Has a total storage capacity greater than 1,320 gallons or a completely buried storage capacity
greater than 42,000 gallons.
Could reasonably be expected to discharge oil in quantities that may be harmful to navigable waters
of the United States and adjoining shorelines.
Furthermore, if the facility is subject to 40 CFR Part 112, the SWMP should reference the SPCC Plan.
To find out more about SPCC Plans, see EPA's website on SPPC at www.epa.gov/oilspill/spcc.htm.
Reporting Oil Spills
In the event of an oil spill, contact the National Response Center toll free at 1-800-424- 8802 for
assistance, or for more details, visit their website: www.nrc.uscg.mil.
Maintenance and Removal
Effective implementation of good housekeeping practices is dependent on clear designation of personnel
responsible for supervising and implementing good housekeeping programs, such as site cleanup and
disposal of trash and debris, hazardous material management and disposal, vehicle and equipment
maintenance, and other practices. Emergency response "drills" may aid in emergency preparedness.
Checklists may be helpful in good housekeeping efforts.
Staging and storage areas require permanent stabilization when the areas are no longer being used for
construction-related activities.
Construction-related materials, debris and waste must be removed from the construction site once
construction is complete.
Design Details
See the following Fact Sheets for related Design Details:
MM-1 Concrete Washout Area
MM-2 Stockpile Management
SM-4 Vehicle Tracking Control
Design details are not necessary for other good housekeeping practices; however, be sure to designate
where specific practices will occur on the appropriate construction drawings.
Good Housekeeping S-5
November 2010 Urban Drainage and Flood Control District GH-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph GH-1. Use dry clean-up methods to remove spilled
materials. Photo courtesy of Colorado Nonpoint Source Program.
Description
Good housekeeping practices are designed
to maintain a clean and orderly work
environment. The most effective first
steps towards preventing pollution in
stormwater from work sites simply
involve using common sense to improve
the facility’s basic housekeeping methods.
Poor housekeeping practices result in
increased waste and potential for
stormwater contamination.
A clean and orderly work site reduces the
possibility of accidental spills caused by
mishandling of chemicals and equipment
and should reduce safety hazards to
personnel. A well-maintained material and
chemical storage area will reduce the
possibility of stormwater mixing with pollutants.
Some simple procedures a facility can use to promote good housekeeping include improved operation and
maintenance of machinery and processes, material storage practices, material inventory controls, routine
and regular clean-up schedules, maintaining well organized work areas, signage, and educational
programs for employees and the general public about all of these practices.
Appropriate Uses
Good housekeeping practices require education and training, typically targeted to industries and
businesses, municipal employees, as well as the general public.
Practice Guidelines
Good housekeeping practices include these general areas:
Operation and Maintenance
Material Storage
Material Inventory
Training and Participation.
Operation and Maintenance
Consider implementing the following practices:
Maintain dry and clean floors and ground surfaces by using brooms, shovels, vacuums or cleaning
machines, rather than wet clean-up methods.
Regularly collect and dispose of garbage and waste material.
S-5 Good Housekeeping
GH-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Routinely inspect equipment to ensure that it is functioning properly without leaking and conduct
preventative maintenance and needed repairs.
Train employees on proper clean up and spill response procedures.
Designate separate areas of the site for auto parking, vehicle refueling and routine maintenance.
Promptly clean up leaks, drips and other spills.
Cover and maintain dumpsters and waste receptacles. Add additional dumpsters or increase
frequency of waste collection if overflowing conditions reoccur.
Where outdoor painting and sanding occur, implement these practices:
o Conduct these activities in designated areas that provide adequate protection to prevent overspray
and uncontrolled emissions. All operations should be conducted on paved surfaces to facilitate
cleanup.
o Use portable containment as necessary for outside operations.
o Clean up and properly dispose of excess paint, paint chips, protective coatings, grit waste, etc.
Maintain vegetation on facility grounds in a manner that minimizes erosion. Follow the Landscape
Maintenance and Pesticide, Herbicide and Fertilizer Usage BMPs to ensure that minimum amounts of
chemicals needed for healthy vegetation are applied in a manner that minimizes transport of these
materials in runoff.
Material Storage Practices
Proper storage techniques include the following:
Provide adequate aisle space to facilitate material transfer and ease of access for inspection.
Store containers, drums, and bags away from direct traffic routes to reduce container damage
resulting in accidental spills.
Stack containers according to manufacturer’s instructions to avoid damaging the containers from
improper weight distribution. Also store materials in accordance with directions in Material Safety
Data Sheets (MSDSs).
Store containers on pallets or similar devices to prevent corrosion of containers that results from
containers coming in contact with moisture on the ground.
Store toxic or hazardous liquids within curbed areas or secondary containers.
Material Inventory Practices
An up-to-date materials inventory can keep material costs down by preventing overstocking, track how
materials are stored and handled onsite, and identify which materials and activities pose the most risk to
the environment. Assign responsibility of hazardous material inventory to individuals trained to handle
such materials. A material inventory should include these steps:
Identify all chemical substances present at work site. Perform a walk-through of the site, review
Good Housekeeping S-5
November 2010 Urban Drainage and Flood Control District GH-3
Urban Storm Drainage Criteria Manual Volume 3
purchase orders, list all chemical substances used and obtain Material Safety Data Sheets (MSDS) for
all chemicals.
Label all containers. Labels should provide name and type of substance, stock number, expiration
date, health hazards, handling suggestions, and first aid information. Much of, this information can
be found on an MSDS.
Clearly identify special handling, storage, use and disposal considerations for hazardous materials on
the material inventory.
Institute a shelf-life program to improve material tracking and inventory that can reduce the amount
of materials that are overstocked and ensure proper disposal of expired materials. Careful tracking of
materials ordered can result in more efficient materials use. Decisions on the amounts of hazardous
materials that are stored on site should include an evaluation of any emergency control systems that
are in place. All storage areas for hazardous materials should be designed to contain spills.
Training and Participation
Frequent and proper training in good housekeeping techniques reduces the likelihood that chemicals or
equipment will be mishandled. To promote good housekeeping, consider implementing these practices:
Discuss good housekeeping practices in training programs and meetings.
Publicize pollution prevention concepts through posters or signs.
Post bulletin boards with updated good housekeeping procedures, tips and reminders.
Rock Sock (RS) SC-5
November 2010 Urban Drainage and Flood Control District RS-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph RS-1. Rock socks placed at regular intervals in a curb
line can help reduce sediment loading to storm sewer inlets. Rock
socks can also be used as perimeter controls.
Description
A rock sock is constructed of gravel
that has been wrapped by wire mesh or
a geotextile to form an elongated
cylindrical filter. Rock socks are
typically used either as a perimeter
control or as part of inlet protection.
When placed at angles in the curb line,
rock socks are typically referred to as
curb socks. Rock socks are intended to
trap sediment from stormwater runoff
that flows onto roadways as a result of
construction activities.
Appropriate Uses
Rock socks can be used at the perimeter
of a disturbed area to control localized
sediment loading. A benefit of rock
socks as opposed to other perimeter controls is that they do not have to be trenched or staked into the
ground; therefore, they are often used on roadway construction projects where paved surfaces are present.
Use rock socks in inlet protection applications when the construction of a roadway is substantially
complete and the roadway has been directly connected to a receiving storm system.
Design and Installation
When rock socks are used as perimeter controls, the maximum recommended tributary drainage area per
100 lineal feet of rock socks is approximately 0.25 acres with disturbed slope length of up to 150 feet and
a tributary slope gradient no steeper than 3:1. A rock sock design detail and notes are provided in Detail
RS-1. Also see the Inlet Protection Fact Sheet for design and installation guidance when rock socks are
used for inlet protection and in the curb line.
When placed in the gutter adjacent to a curb, rock socks should protrude no more than two feet from the
curb in order for traffic to pass safely. If located in a high traffic area, place construction markers to alert
drivers and street maintenance workers of their presence.
Maintenance and Removal
Rock socks are susceptible to displacement and breaking due to vehicle traffic. Inspect rock socks for
damage and repair or replace as necessary. Remove sediment by sweeping or vacuuming as needed to
maintain the functionality of the BMP, typically when sediment
has accumulated behind the rock sock to one-half of the sock's
height.
Once upstream stabilization is complete, rock socks and
accumulated sediment should be removed and properly disposed.
Rock Sock
Functions
Erosion Control No
Sediment Control Yes
Site/Material Management No
SC-5 Rock Sock (RS)
RS-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Rock Sock (RS) SC-5
November 2010 Urban Drainage and Flood Control District RS-3
Urban Storm Drainage Criteria Manual Volume 3
Silt Fence (SF) SC-1
November 2010 Urban Drainage and Flood Control District SF-3
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SC-1 Silt Fence (SF)
SF-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Spill Prevention, Containment and Control S-2
November 2010 Urban Drainage and Flood Control District SPCC-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph SPCC-1. Use of secondary containment around supplies
stored outside helps to reduce the likelihood of spill and leaks reaching
the storm sewer system in runoff. Photo courtesy of Tom Gore.
Also See These BMP Fact Sheets
Covering Storage/Handling Areas
Good Housekeeping
Vehicle Fueling, Maintenance,
Washing & Storage
Preventative Maintenance
Description
Spills and leaks of solid and liquid
materials processed, handled or stored
outdoors can be a significant source of
stormwater pollutants. Spilled
substances can reach receiving waters
when runoff washes these materials
from impervious surfaces or when
spills directly enter the storm sewer
system during dry weather conditions.
Effective spill control includes both
spill prevention and spill response
measures and depends on proper
employee training for spill response
measures and may also include structural
spill containment, particularly at
industrial locations. Structural spill containment measures typically include temporary or permanent
curbs or berms that surround a potential spill site. Berms may be constructed of concrete, earthen
material, metal, synthetic liners, or other material that will safely contain the spill. Spill control devices
may also include valves, slide gates, or other devices that can control and contain spilled material before
it reaches the storm sewer system or receiving waters.
Appropriate Uses
Implement spill prevention, containment and control measures at municipal, commercial and industrial
facilities in areas where materials may be spilled in quantities that may adversely impact receiving waters
when discharged directly or through the storm sewer system. Check local, state, and/or federal
regulations to determine when spill containment and control measures are required by law. Spill
Prevention, Control and Countermeasures Plans may be required for certain facilities handling oil and
hazardous substances sunder Section 311(j)(1)(C) of the federal Clean Water Act.
Practice Guidelines
Spill Prevention Measures
Train employees on potential sources of pollution on-site
and provide clear, common-sense spill prevention
practices. Require that these practices be strictly followed.
Identify equipment that may be exposed to stormwater,
pollutants that may be generated and possible sources of
leaks or discharges.
Perform regular inspection and preventative maintenance of equipment to ensure proper operation
and to check for leaks or evidence of discharge (stains). Provide clear procedures to ensure that
needed repairs are completed and provide temporary leak containment until such repairs can be
implemented.
S-2 Spill Prevention, Containment and Control
SPCC-2 Urban Drainage and Flood Control District November 2010
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Drain or replace motor oil and other automotive fluids in a designated area away from storm sewer
inlets. Collect spent fluids and recycle or dispose of properly. Never dispose of these fluids in the
storm sewer or sanitary sewer.
In fueling areas, clean up spills with dry methods (absorbents) and use damp cloths on gas pumps and
damp mops on paved surfaces. Never use a hose to “wash down” a fuel spill.
Where practical, reduce stormwater contact with equipment and materials by implementing indoor or
covered storage, implementing stormwater run-on control measures and following good housekeeping
practices.
Identification of Spill Areas
Identify potential spill areas, potential spill volumes, material types, frequency of material use, and
drainage paths from spill areas with relation to storm sewer inlets, adjacent waterbodies, structural BMPs,
and containment structures. Use this information to determine the types of spill prevention and control
measures needed specific to the site conditions. Examples of potential spill locations include:
Loading and unloading areas
Outdoor storage areas
Outdoor manufacturing or processing activities
Waste disposal/storage areas
Areas that generate significant dust or particulates (that may be subsequently deposited on the
ground)
Salt piles
Areas prone to spills based on past experience at the site
Locations where other routine maintenance activities occur such as equipment maintenance and
cleaning, pesticide/fertilizer application, etc.
Additionally, areas where smaller leaks may occur such as parking should also have basic spill cleanup
procedures.
Material Handling Procedures
From a water quality perspective, the primary principle behind effective material handling practices is to
minimize exposure to stormwater. This can be accomplished by storing the material indoors under
weather-resistant covering, elevating the material off the ground by using pallets, and diverting
stormwater around materials storage areas. Representative outdoor materials handling procedures
include:
Keep bulk solid materials such as raw materials, sand, gravel, topsoil, compost, concrete, packing
materials, metal products and other materials covered and protected from stormwater.
When practical, store materials on impermeable surfaces.
Store hazardous materials according to federal, state, and local hazardous materials requirements.
Spill Prevention, Containment and Control S-2
November 2010 Urban Drainage and Flood Control District SPCC-3
Urban Storm Drainage Criteria Manual Volume 3
Adopt procedures that reduce the chance of spills or leaks during filling or transfer of materials.
Substitute less toxic or non-toxic materials for toxic materials.
Store containers that are easily punctured or damaged away from high traffic areas (i.e., adopt a
materials flow/plant layout plan).
Add waste-capture containers such as collection pans for lubricating fluids.
Store drums and containers with liquid materials on impermeable surfaces and provide secondary
containment where appropriate. Drums stored outdoors should be located on pallets to minimize
contact with runoff.
Spill Response Procedures and Equipment
Spill response procedures should be tailored to site-specific conditions and industry-specific regulatory
requirements. General spill response procedures include:
Containment and cleanup of spills should begin promptly after the spill is observed.
Sweep up small quantities of dry chemical or solids to reduce exposure to runoff. Shoveling may be
used for larger quantities of materials.
Absorbents should be readily accessible in fueling areas or other areas susceptible to spills.
Wipe up small spills with a shop rag, store shop rags in appropriate containers, dispose of rags
properly or use a professional industrial cleaning service.
Contain medium-sized spills with absorbents (e.g., kitty litter, sawdust) and use inflatable berms or
absorbent “snakes” as temporary booms for the spill. Store and dispose of absorbents properly.
Wet/dry vacuums may also be used, but not for volatile fluids.
Develop procedures and locations for containing and storing leaking containers.
Install drip pans below minor equipment leaks and properly dispose of collected material until a
repair can be made.
For large spills, first contain the spill and plug storm drain inlets where the liquid may migrate off-
site, then clean up the spill.
Excavation of spill areas to removed contaminated material may be required where large liquid spills
occur on unpaved surfaces.
An inventory of cleanup materials should be maintained onsite and strategically located based on the
types and quantities of chemicals present.
Structural Spill Containment Measures
Two general approaches are often used when implementing spill containment measures. The first
approach is designed to contain the entire spill. The second approach uses curbing to route spilled
material to a collection basin. Both containment berming and curbing should be sized to safely contain or
convey to a collection basin a spill from the largest storage tank, rail car, tank truck, or other containment
device in the possible spill area. The spill containment area must have an impermeable surface (e.g.,
S-2 Spill Prevention, Containment and Control
SPCC-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Key Spill Notification Contacts in
Colorado
Colorado Department of Public
Health and Environment Toll-
Free 24-hour Environmental
Emergency Spill Reporting
Line: 1-877-518-5608
National Response Center: 1-
800-424-8802 (24-hour)
Local Emergency Planning
Committee (OEM): 303-273-
162
Division of Oil & Public Safety-
Storage Tanks: 303-318-8547
Oil and Gas Conservation
Commission: 303-894-2100 or
1-888-235-1101 (toll-free
spill/complaint line)
impermeable liner, asphalt or concrete) to prevent groundwater contamination. The containment system
must be designed to enable collection and removal of spilled material through a pump or vacuum trucks,
use of sorbent or gelling material, or other measures. Material removed from the spill area must be
disposed of or recycled according to local, state, and federal standards.
If the capacity of the containment berming or the collection basin is exceeded, supplemental spill control
measures should be available such as a portable containment device, sorbent materials, or gelling agents
that eventually solidify the material. Water that collects within containment areas due to rainfall or
snowmelt must be appropriately treated before release from the spill area.
Spill Plan Development
Many industries are required by federal law to have a Spill Prevention, Control and Countermeasures Plan
(SPCC) that meets specific regulatory criteria when certain types and quantities of materials are used or
processed at a site. These plans can be instrumental in developing a spill control plan for stormwater
management purposes. Even if an SPCC plan is not legally required at a site, a spill control plan for
stormwater management purposes may be necessary. Representative information appropriate for a spill
control plan, building on concepts previously introduced in this Fact Sheet, includes:
Site plan showing where materials are stored and handled, and where associated activities occur.
Notification procedures to be used in the event of an accident
Instructions for clean-up procedures.
A designated person with spill response and clean-up
authority.
Training of key personnel in plan and clean-up procedures.
Signs posted at critical locations providing a summary of
SPCC plan information, phone numbers, contacts,
equipment locations, etc.
Provisions requiring spills to be cleaned up, corrective
actions taken, or countermeasures implemented
immediately.
Provisions for absorbents to be made available for use in
fuel areas, and for containers to be available for used
absorbents.
Prohibition on washing absorbents into the storm drainage
system or into the sanitary sewer system via floor drains.
Provision for emergency spill containment and clean-up
kits in accessible and convenient locations. Kits should
contain the appropriate clean-up materials applicable to the
materials stored at the site.
Stabilized Staging Area (SSA) SM-6
November 2010 Urban Drainage and Flood Control District SSA-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph SSA-1. Example of a staging area with a gravel surface to
prevent mud tracking and reduce runoff. Photo courtesy of Douglas
County.
Description
A stabilized staging area is a clearly
designated area where construction
equipment and vehicles, stockpiles, waste
bins, and other construction-related
materials are stored. The contractor
office trailer may also be located in this
area. Depending on the size of the
construction site, more than one staging
area may be necessary.
Appropriate Uses
Most construction sites will require a
staging area, which should be clearly
designated in SWMP drawings. The layout
of the staging area may vary depending on
the type of construction activity. Staging areas located in roadways due to space constraints require
special measures to avoid materials being washed into storm inlets.
Design and Installation
Stabilized staging areas should be completed prior to other construction activities beginning on the site.
Major components of a stabilized staging area include:
Appropriate space to contain storage and provide for loading/unloading operations, as well as parking
if necessary.
A stabilized surface, either paved or covered, with 3-inch diameter aggregate or larger.
Perimeter controls such as silt fence, sediment control logs, or other measures.
Construction fencing to prevent unauthorized access to construction materials.
Provisions for Good Housekeeping practices related to materials storage and disposal, as described in
the Good Housekeeping BMP Fact Sheet.
A stabilized construction entrance/exit, as described in the Vehicle Tracking Control BMP Fact Sheet,
to accommodate traffic associated with material delivery and waste disposal vehicles.
Over-sizing the stabilized staging area may result in disturbance of existing vegetation in excess of that
required for the project. This increases costs, as well as
requirements for long-term stabilization following the
construction period. When designing the stabilized staging area,
minimize the area of disturbance to the extent practical.
Stabilized Staging Area
Functions
Erosion Control Yes
Sediment Control Moderate
Site/Material
Yes
SM-6 Stabilized Staging Area (SSA)
SSA-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
See Detail SSA-1 for a typical stabilized staging area and SSA-2 for a stabilized staging area when
materials staging in roadways is required.
Maintenance and Removal
Maintenance of stabilized staging areas includes maintaining a stable surface cover of gravel, repairing
perimeter controls, and following good housekeeping practices.
When construction is complete, debris, unused stockpiles and materials should be recycled or properly
disposed. In some cases, this will require disposal of contaminated soil from equipment leaks in an
appropriate landfill. Staging areas should then be permanently stabilized with vegetation or other surface
cover planned for the development.
Minimizing Long-Term Stabilization Requirements
Utilize off-site parking and restrict vehicle access to the site.
Use construction mats in lieu of rock when staging is provided in an area that will not be disturbed
otherwise.
Consider use of a bermed contained area for materials and equipment that do not require a
stabilized surface.
Consider phasing of staging areas to avoid disturbance in an area that will not be otherwise
disturbed.
Stabilized Staging Area (SSA) SM-6
November 2010 Urban Drainage and Flood Control District SSA-3
Urban Storm Drainage Criteria Manual Volume 3
SM-6 Stabilized Staging Area (SSA)
SSA-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Stockpile Management (SP) MM-2
November 2010 Urban Drainage and Flood Control District SP-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph SP-1. A topsoil stockpile that has been partially
revegetated and is protected by silt fence perimeter control.
Description
Stockpile management includes
measures to minimize erosion and
sediment transport from soil stockpiles.
Appropriate Uses
Stockpile management should be used
when soils or other erodible materials
are stored at the construction site.
Special attention should be given to
stockpiles in close proximity to natural
or manmade storm systems.
Design and Installation
Locate stockpiles away from all drainage system components including storm sewer inlets. Where
practical, choose stockpile locations that that will remain undisturbed for the longest period of time as the
phases of construction progress. Place sediment control BMPs around the perimeter of the stockpile, such
as sediment control logs, rock socks, silt fence, straw bales and sand bags. See Detail SP-1 for guidance
on proper establishment of perimeter controls around a stockpile. For stockpiles in active use, provide a
stabilized designated access point on the upgradient side of the stockpile.
Stabilize the stockpile surface with surface roughening, temporary seeding and mulching, erosion control
blankets, or soil binders. Soils stockpiled for an extended period (typically for more than 60 days) should
be seeded and mulched with a temporary grass cover once the stockpile is placed (typically within 14
days). Use of mulch only or a soil binder is acceptable if the stockpile will be in place for a more limited
time period (typically 30-60 days). Timeframes for stabilization of stockpiles noted in this fact sheet are
"typical" guidelines. Check permit requirements for specific federal, state, and/or local requirements that
may be more prescriptive.
Stockpiles should not be placed in streets or paved areas unless no other practical alternative exists. See
the Stabilized Staging Area Fact Sheet for guidance when staging in roadways is unavoidable due to
space or right-of-way constraints. For paved areas, rock socks must be used for perimeter control and all
inlets with the potential to receive sediment from the stockpile (even from vehicle tracking) must be
protected.
Maintenance and Removal
Inspect perimeter controls and inlet protection in accordance with their respective BMP Fact Sheets.
Where seeding, mulch and/or soil binders are used, reseeding or reapplication of soil binder may be
necessary.
When temporary removal of a perimeter BMP is necessary
to access a stockpile, ensure BMPs are reinstalled in
accordance with their respective design detail section.
Stockpile Management
Functions
Erosion Control Yes
Sediment Control Yes
Site/Material Management Yes
MM-2 Stockpile Management (SM)
SP-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
When the stockpile is no longer needed, properly dispose of excess materials and revegetate or otherwise
stabilize the ground surface where the stockpile was located.
Stockpile Management (SP) MM-2
November 2010 Urban Drainage and Flood Control District SP-3
Urban Storm Drainage Criteria Manual Volume 3
MM-2 Stockpile Management (SM)
SP-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Stockpile Management (SP) MM-2
November 2010 Urban Drainage and Flood Control District SP-5
Urban Storm Drainage Criteria Manual Volume 3
MM-2 Stockpile Management (SM)
SP-6 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Street Sweeping and Cleaning S-11
November 2010 Urban Drainage and Flood Control District SWC-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph SSC-1. Monthly street sweeping from April through
November removed nearly 40,690 cubic yards of sediment/debris from
Denver streets in 2009. Photo courtesy of Denver Public Works.
Description
Street sweeping uses mechanical pavement
cleaning practices to reduce sediment,
litter and other debris washed into storm
sewers by runoff. This can reduce
pollutant loading to receiving waters and
in some cases reduce clogging of storm
sewers and prolong the life of infiltration
oriented BMPs and reduce clogging of
outlet structures in detention BMPs.
Different designs are available with typical
sweepers categorized as a broom and
conveyor belt sweeper, wet or dry
vacuum-assisted sweepers, and
regenerative-air sweepers. The
effectiveness of street sweeping is
dependent upon particle loadings in the
area being swept, street texture, moisture
conditions, parked car management,
equipment operating conditions and
frequency of cleaning (Pitt et al. 2004).
Appropriate Uses
Street sweeping is an appropriate technique in urban areas where sediment and litter accumulation on
streets is of concern for aesthetic, sanitary, water quality, and air quality reasons. From a pollutant
loading perspective, street cleaning equipment can be most effective in areas where the surface to be
cleaned is the major source of contaminants. These areas include freeways, large commercial parking
lots, and paved storage areas (Pitt et al. 2004). Where significant sediment accumulation occurs on
pervious surfaces tributary to infiltration BMPs, street sweeping may help to reduce clogging of
infiltration media. In areas where construction activity is occurring, street sweeping should occur as part
of construction site stormwater management plans. Vacuuming of permeable pavement systems is also
considered a basic routine maintenance practice to maintain the BMP in effective operating condition.
See the maintenance chapter for more information on permeable pavement systems. Not all sweepers are
appropriate for this application.
Practice Guidelines1
1. Post street sweeping schedules with signs and on local government websites so that cars are not
parked on the street during designated sweeping days.
2. Sweeping frequency is dependent on local government budget, staffing, and equipment availability,
but monthly sweeping during non-winter months is a common approach in the metro Denver urban
1 Practice guidelines adapted from CASQA (2003) California Stormwater BMP Handbook, Practice SC-70 Road and Street
Maintenance.
S-11 Street Sweeping and Cleaning
SWC-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Changes in Street Sweeper Technology (Source: Center for Watershed Protection 2002)
At one time, street sweepers were thought to have great potential to remove stormwater pollutants from
urban street surfaces and were widely touted as a stormwater treatment practice in many communities.
Street sweeping gradually fell out of favor, largely as a result of performance monitoring conducted as
part of the National Urban Runoff Program (NURP). These studies generally concluded that street
sweepers were not very effective in reducing pollutant loads (USEPA, 1983). The primary reason for
the mediocre performance was that mechanical sweepers of that era were unable to pick up fine-grained
sediment particles that carry a substantial portion of the stormwater pollutant load. In addition, the
performance of sweepers is constrained by that portion of a street’s stormwater pollutant load delivered
from outside street pavements (e.g., pollutants that wash onto the street from adjacent areas or are
directly deposited on the street by rainfall). Street sweeping technology, however, has evolved
considerably since the days of the NURP testing. Today, communities have a choice in three basic
sweeping technologies to clean their urban streets: traditional mechanical sweepers that utilize a broom
and conveyor belt, vacuum-assisted sweepers, and regenerative-air sweepers (those that blast air onto
the pavement to loosen sediment particles and vacuum them into a hopper).
For more information, see
http://www.cwp.org/Resource_Library/Center_Docs/PWP/ELC_PWP121.pdf
area. Consider increasing sweeping frequency based on factors such as traffic volume, land use, field
observations of sediment and trash accumulation, proximity to watercourses, etc. For example:
Increase the sweeping frequency for streets with high pollutant loadings, especially in high traffic
and industrial areas.
Conduct street sweeping prior to wetter seasons to remove accumulated sediments.
Increase the sweeping frequency for streets in special problem areas such as special events, high
litter or erosion zones.
3. Perform street cleaning during dry weather if possible.
4. Avoid wet cleaning the street; instead, utilize dry methods where possible.
5. Maintain cleaning equipment in good working condition and purchase replacement equipment as
needed. Old sweepers should be replaced with more technologically advanced sweepers (preferably
regenerative air sweepers) that maximize pollutant removal.
6. Operate sweepers at manufacturer recommended optimal speed levels to increase effectiveness.
7. Regularly inspect vehicles and equipment for leaks and repair promptly.
8. Keep accurate logs of the number of curb-miles swept and the amount of waste collected.
9. Dispose of street sweeping debris and dirt at a landfill.
10. Do not store swept material along the side of the street or near a storm drain inlet.
Street Sweeping and Vacuuming (SS) SM-7
November 2010 Urban Drainage and Flood Control District SS-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph SS-1. A street sweeper removes sediment and potential
pollutants along the curb line at a construction site. Photo courtesy of
Tom Gore.
Description
Street sweeping and vacuuming remove
sediment that has been tracked onto
roadways to reduce sediment transport
into storm drain systems or a surface
waterway.
Appropriate Uses
Use this practice at construction sites
where vehicles may track sediment
offsite onto paved roadways.
Design and Installation
Street sweeping or vacuuming should be
conducted when there is noticeable
sediment accumulation on roadways adjacent to the construction site. Typically, this will be concentrated
at the entrance/exit to the construction site. Well-maintained stabilized construction entrances, vehicle
tracking controls and tire wash facilities can help reduce the necessary frequency of street sweeping and
vacuuming.
On smaller construction sites, street sweeping can be conducted manually using a shovel and broom.
Never wash accumulated sediment on roadways into storm drains.
Maintenance and Removal
Inspect paved roads around the perimeter of the construction site on a daily basis and more
frequently, as needed. Remove accumulated sediment, as needed.
Following street sweeping, check inlet protection that may have been displaced during street
sweeping.
Inspect area to be swept for materials that may be hazardous prior to beginning sweeping operations.
Street Sweeping/ Vacuuming
Functions
Erosion Control No
Sediment Control Yes
Site/Material Management Yes
Temporary and Permanent Seeding (TS/PS) EC-2
June 2012 Urban Drainage and Flood Control District TS/PS-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph TS/PS -1. Equipment used to drill seed. Photo courtesy of
Douglas County.
Description
Temporary seeding can be used to
stabilize disturbed areas that will be
inactive for an extended period.
Permanent seeding should be used to
stabilize areas at final grade that will not
be otherwise stabilized. Effective seeding
includes preparation of a seedbed,
selection of an appropriate seed mixture,
proper planting techniques, and protection
of the seeded area with mulch, geotextiles,
or other appropriate measures.
Appropriate Uses
When the soil surface is disturbed and
will remain inactive for an extended
period (typically 30 days or longer),
proactive stabilization measures should be implemented. If the inactive period is short-lived (on the order
of two weeks), techniques such as surface roughening may be appropriate. For longer periods of
inactivity, temporary seeding and mulching can provide effective erosion control. Permanent seeding
should be used on finished areas that have not been otherwise stabilized.
Typically, local governments have their own seed mixes and timelines for seeding. Check jurisdictional
requirements for seeding and temporary stabilization.
Design and Installation
Effective seeding requires proper seedbed preparation, selection of an appropriate seed mixture, use of
appropriate seeding equipment to ensure proper coverage and density, and protection with mulch or fabric
until plants are established.
The USDCM Volume 2 Revegetation Chapter contains detailed seed mix, soil preparations, and seeding
and mulching recommendations that may be referenced to supplement this Fact Sheet.
Drill seeding is the preferred seeding method. Hydroseeding is not recommended except in areas where
steep slopes prevent use of drill seeding equipment, and even in these instances it is preferable to hand
seed and mulch. Some jurisdictions do not allow hydroseeding or hydromulching.
Seedbed Preparation
Prior to seeding, ensure that areas to be revegetated have
soil conditions capable of supporting vegetation. Overlot
grading can result in loss of topsoil, resulting in poor quality
subsoils at the ground surface that have low nutrient value,
little organic matter content, few soil microorganisms,
rooting restrictions, and conditions less conducive to
infiltration of precipitation. As a result, it is typically
necessary to provide stockpiled topsoil, compost, or other
Temporary and Permanent Seeding
Functions
Erosion Control Yes
Sediment Control No
Site/Material Management No
EC-2 Temporary and Permanent Seeding (TS/PS)
TS/PS-2 Urban Drainage and Flood Control District June 2012
Urban Storm Drainage Criteria Manual Volume 3
soil amendments and rototill them into the soil to a depth of 6 inches or more.
Topsoil should be salvaged during grading operations for use and spread on areas to be revegetated later.
Topsoil should be viewed as an important resource to be utilized for vegetation establishment, due to its
water-holding capacity, structure, texture, organic matter content, biological activity, and nutrient content.
The rooting depth of most native grasses in the semi-arid Denver metropolitan area is 6 to 18 inches. At a
minimum, the upper 6 inches of topsoil should be stripped, stockpiled, and ultimately respread across
areas that will be revegetated.
Where topsoil is not available, subsoils should be amended to provide an appropriate plant-growth
medium. Organic matter, such as well digested compost, can be added to improve soil characteristics
conducive to plant growth. Other treatments can be used to adjust soil pH conditions when needed. Soil
testing, which is typically inexpensive, should be completed to determine and optimize the types and
amounts of amendments that are required.
If the disturbed ground surface is compacted, rip or rototill the surface prior to placing topsoil. If adding
compost to the existing soil surface, rototilling is necessary. Surface roughening will assist in placement
of a stable topsoil layer on steeper slopes, and allow infiltration and root penetration to greater depth.
Prior to seeding, the soil surface should be rough and the seedbed should be firm, but neither too loose
nor compacted. The upper layer of soil should be in a condition suitable for seeding at the proper depth
and conducive to plant growth. Seed-to-soil contact is the key to good germination.
Seed Mix for Temporary Vegetation
To provide temporary vegetative cover on disturbed areas which will not be paved, built upon, or fully
landscaped or worked for an extended period (typically 30 days or more), plant an annual grass
appropriate for the time of planting and mulch the planted areas. Annual grasses suitable for the Denver
metropolitan area are listed in Table TS/PS-1. These are to be considered only as general
recommendations when specific design guidance for a particular site is not available. Local governments
typically specify seed mixes appropriate for their jurisdiction.
Seed Mix for Permanent Revegetation
To provide vegetative cover on disturbed areas that have reached final grade, a perennial grass mix should
be established. Permanent seeding should be performed promptly (typically within 14 days) after
reaching final grade. Each site will have different characteristics and a landscape professional or the local
jurisdiction should be contacted to determine the most suitable seed mix for a specific site. In lieu of a
specific recommendation, one of the perennial grass mixes appropriate for site conditions and growth
season listed in Table TS/PS-2 can be used. The pure live seed (PLS) rates of application recommended
in these tables are considered to be absolute minimum rates for seed applied using proper drill-seeding
equipment.
If desired for wildlife habitat or landscape diversity, shrubs such as rubber rabbitbrush (Chrysothamnus
nauseosus), fourwing saltbush (Atriplex canescens) and skunkbrush sumac (Rhus trilobata) could be
added to the upland seedmixes at 0.25, 0.5 and 1 pound PLS/acre, respectively. In riparian zones,
planting root stock of such species as American plum (Prunus americana), woods rose (Rosa woodsii),
plains cottonwood (Populus sargentii), and willow (Populus spp.) may be considered. On non-topsoiled
upland sites, a legume such as Ladak alfalfa at 1 pound PLS/acre can be included as a source of nitrogen
for perennial grasses.
Temporary and Permanent Seeding (TS/PS) EC-2
June 2012 Urban Drainage and Flood Control District TS/PS-3
Urban Storm Drainage Criteria Manual Volume 3
Seeding dates for the highest success probability of perennial species along the Front Range are generally
in the spring from April through early May and in the fall after the first of September until the ground
freezes. If the area is irrigated, seeding may occur in summer months, as well. See Table TS/PS-3 for
appropriate seeding dates.
Table TS/PS-1. Minimum Drill Seeding Rates for Various Temporary Annual Grasses
Speciesa
(Common name)
Growth
Seasonb
Pounds of
Pure Live Seed
(PLS)/acrec
Planting
Depth
(inches)
1. Oats Cool 35 - 50 1 - 2
2. Spring wheat Cool 25 - 35 1 - 2
3. Spring barley Cool 25 - 35 1 - 2
4. Annual ryegrass Cool 10 - 15 ½
5. Millet Warm 3 - 15 ½ - ¾
6. Sudangrass Warm 5–10 ½ - ¾
7. Sorghum Warm 5–10 ½ - ¾
8. Winter wheat Cool 20–35 1 - 2
9. Winter barley Cool 20–35 1 - 2
10. Winter rye Cool 20–35 1 - 2
11. Triticale Cool 25–40 1 - 2
a Successful seeding of annual grass resulting in adequate plant growth will
usually produce enough dead-plant residue to provide protection from
wind and water erosion for an additional year. This assumes that the cover
is not disturbed or mowed closer than 8 inches.
Hydraulic seeding may be substituted for drilling only where slopes are
steeper than 3:1 or where access limitations exist. When hydraulic
seeding is used, hydraulic mulching should be applied as a separate
operation, when practical, to prevent the seeds from being encapsulated in
the mulch.
b See Table TS/PS-3 for seeding dates. Irrigation, if consistently applied,
may extend the use of cool season species during the summer months.
c Seeding rates should be doubled if seed is broadcast, or increased by 50
percent if done using a Brillion Drill or by hydraulic seeding.
EC-2 Temporary and Permanent Seeding (TS/PS)
TS/PS-4 Urban Drainage and Flood Control District June 2012
Urban Storm Drainage Criteria Manual Volume 3
Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses
Common
a
Name
Botanical
Name
Growth
Seasonb
Growth
Form
Seeds/
Pound
Pounds of
PLS/acre
Alakali Soil Seed Mix
Alkali sacaton Sporobolus airoides Cool Bunch 1,750,000 0.25
Basin wildrye Elymus cinereus Cool Bunch 165,000 2.5
Sodar streambank wheatgrass Agropyron riparium 'Sodar' Cool Sod 170,000 2.5
Jose tall wheatgrass Agropyron elongatum 'Jose' Cool Bunch 79,000 7.0
Arriba western wheatgrass Agropyron smithii 'Arriba' Cool Sod 110,000 5.5
Total 17.75
Fertile Loamy Soil Seed Mix
Ephriam crested wheatgrass Agropyron cristatum
'Ephriam' Cool Sod 175,000 2.0
Dural hard fescue Festuca ovina 'duriuscula' Cool Bunch 565,000 1.0
Lincoln smooth brome Bromus inermis leyss
'Lincoln' Cool Sod 130,000 3.0
Sodar streambank wheatgrass Agropyron riparium 'Sodar' Cool Sod 170,000 2.5
Arriba western wheatgrass Agropyron smithii 'Arriba' Cool Sod 110,000 7.0
Total 15.5
High Water Table Soil Seed Mix
Meadow foxtail Alopecurus pratensis Cool Sod 900,000 0.5
Redtop Agrostis alba Warm Open sod 5,000,000 0.25
Reed canarygrass Phalaris arundinacea Cool Sod 68,000 0.5
Lincoln smooth brome Bromus inermis leyss
'Lincoln' Cool Sod 130,000 3.0
Pathfinder switchgrass Panicum virgatum
'Pathfinder' Warm Sod 389,000 1.0
Alkar tall wheatgrass Agropyron elongatum
'Alkar' Cool Bunch 79,000 5.5
Total 10.75
Transition Turf Seed Mixc
Ruebens Canadian bluegrass Poa compressa 'Ruebens' Cool Sod 2,500,000 0.5
Dural hard fescue Festuca ovina 'duriuscula' Cool Bunch 565,000 1.0
Citation perennial ryegrass Lolium perenne 'Citation' Cool Sod 247,000 3.0
Lincoln smooth brome Bromus inermis leyss
'Lincoln' Cool Sod 130,000 3.0
Total 7.5
Temporary and Permanent Seeding (TS/PS) EC-2
June 2012 Urban Drainage and Flood Control District TS/PS-5
Urban Storm Drainage Criteria Manual Volume 3
Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses (cont.)
Common
Name
Botanical
Name
Growth
Seasonb
Growth
Form
Seeds/
Pound
Pounds of
PLS/acre
Sandy Soil Seed Mix
Blue grama Bouteloua gracilis Warm Sod-forming
bunchgrass 825,000 0.5
Camper little bluestem Schizachyrium scoparium
'Camper' Warm Bunch 240,000 1.0
Prairie sandreed Calamovilfa longifolia Warm Open sod 274,000 1.0
Sand dropseed Sporobolus cryptandrus Cool Bunch 5,298,000 0.25
Vaughn sideoats grama Bouteloua curtipendula
'Vaughn' Warm Sod 191,000 2.0
Arriba western wheatgrass Agropyron smithii 'Arriba' Cool Sod 110,000 5.5
Total 10.25
Heavy Clay, Rocky Foothill Seed Mix
Ephriam crested wheatgrass
d
Agropyron cristatum
'Ephriam' Cool Sod 175,000 1.5
Oahe Intermediate wheatgrass Agropyron intermedium
'Oahe' Cool Sod 115,000 5.5
Vaughn sideoats grama
e
Bouteloua curtipendula
'Vaughn' Warm Sod 191,000 2.0
Lincoln smooth brome Bromus inermis leyss
'Lincoln' Cool Sod 130,000 3.0
Arriba western wheatgrass Agropyron smithii 'Arriba' Cool Sod 110,000 5.5
Total 17.5
a All of the above seeding mixes and rates are based on drill seeding followed by crimped straw mulch. These rates should be
doubled if seed is broadcast and should be increased by 50 percent if the seeding is done using a Brillion Drill or is applied
through hydraulic seeding. Hydraulic seeding may be substituted for drilling only where slopes are steeper than 3:1. If
hydraulic seeding is used, hydraulic mulching should be done as a separate operation.
b
See Table TS/PS-3 for seeding dates.
c
If site is to be irrigated, the transition turf seed rates should be doubled.
d
Crested wheatgrass should not be used on slopes steeper than 6H to 1V.
e
Can substitute 0.5 lbs PLS of blue grama for the 2.0 lbs PLS of Vaughn sideoats grama.
EC-2 Temporary and Permanent Seeding (TS/PS)
TS/PS-6 Urban Drainage and Flood Control District June 2012
Urban Storm Drainage Criteria Manual Volume 3
Table TS/PS-3. Seeding Dates for Annual and Perennial Grasses
Annual Grasses
(Numbers in table reference
species in Table TS/PS-1)
Perennial Grasses
Seeding Dates Warm Cool Warm Cool
January 1–March 15
March 16–April 30 4 1,2,3
May 1–May 15 4
May 16–June 30 4,5,6,7
July 1–July 15 5,6,7
July 16–August 31
September 1–September 30 8,9,10,11
October 1–December 31
Mulch
Cover seeded areas with mulch or an appropriate rolled erosion control product to promote establishment
of vegetation. Anchor mulch by crimping, netting or use of a non-toxic tackifier. See the Mulching BMP
Fact Sheet for additional guidance.
Maintenance and Removal
Monitor and observe seeded areas to identify areas of poor growth or areas that fail to germinate. Reseed
and mulch these areas, as needed.
An area that has been permanently seeded should have a good stand of vegetation within one growing
season if irrigated and within three growing seasons without irrigation in Colorado. Reseed portions of
the site that fail to germinate or remain bare after the first growing season.
Seeded areas may require irrigation, particularly during extended dry periods. Targeted weed control may
also be necessary.
Protect seeded areas from construction equipment and vehicle access.
Vehicle Maintenance, Fueling and Storage S-7
November 2010 Urban Drainage and Flood Control District VFM-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph VF-1. Use drip pans to collect leaks from vehicles until
repairs can be completed. Photo courtesy of Tom Gore.
Description
Areas where vehicles are fueled,
maintained, and stored/parked can be
pollutant "hot spots" that can result in
hydrocarbons, trace metals, and other
pollutants being transported in stormwater
runoff. Proper fueling operations, storage
of automotive fluids and effective spill
cleanup procedures can help reduce
contamination of stormwater runoff from
vehicle maintenance and fueling facilities.
Fuel-related spills can occur due to
inattention during fueling or "topping off"
fuel tanks. Common activities at
commercial, industrial and municipal
maintenance shops include parts cleaning,
vehicle fluid replacement, and equipment
replacement and repair. Some of the
wastes generated at automobile maintenance facilities include solvents (degreasers, paint thinners, etc.),
antifreeze, brake fluid and brake pad dust, battery acid, motor oil, fuel, and lubricating grease. Fleet
storage areas and customer and employee parking can also be a source of vehicle-related contamination
from leaks, antifreeze spills, etc.
Appropriate Uses
These BMP guidelines are applicable to vehicle maintenance, fueling, fleet storage and parking facilities.
Be aware that washing vehicles and equipment outdoors or in areas where wash water flows onto the
ground can pollute stormwater. Vehicle wash water is considered process wastewater that should not be
discharged to the storm sewer system. Consult state and federal discharge permit requirements for proper
disposal of vehicle washwater, which is typically accomplished through discharge to the sanitary sewer
system.
Practice Guidelines1
Perform maintenance activities inside or under cover. When repairs cannot be performed indoors, be
sure to use drip pans or absorbents.
Vehicle Maintenance
The most effective way to minimize wastes generated by automotive maintenance activities is to prevent
their production in the first place. Consider adopting these practices:
Keep equipment clean and free of excessive oil and grease buildup.
1 Guidelines adapted from the USEPA Menu of BMPs.
S-7 Vehicle Maintenance, Fueling and Storage
VFM-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Promptly cleanup spills using dry methods and properly dispose of waste. When water is required,
use as little as possible to clean spills, leaks, and drips.
Use a solvent collection service to collect spent solvent used for parts cleaning. Where practical, use
detergent-based, steam cleaning, or pressure-based cleaning systems instead of organic solvent
degreasers when practical. (Be aware that cleaning water discharged into the sanitary sewer may
require pre-treatment prior to discharge.)
When using liquids for cleaning, use a centralized station to ensure that solvents and residues stay in
one area. Locate drip pans and draining boards to direct solvents back into a solvent sink or holding
tank for reuse.
Store used oil for recycling in labeled tanks. Locate used oil tanks and drums away from storm
drains, flowing streams, and preferably indoors.
Use non-hazardous or less hazardous alternatives when practical. For example, replace chlorinated
organic solvents with non-chlorinated ones like kerosene or mineral spirits.
Properly recycle or dispose of grease, oil, antifreeze, brake fluid, cleaning solutions, hydraulic fluid,
batteries, transmission fluid, worn parts, filters, and rags.
Drain and crush oil filters before recycling or disposal.
Drain all fluids and remove batteries from salvage vehicles and equipment.
Closely monitor parked vehicles for leaks and place pans under any leaks to collect the fluids for
proper disposal or recycling.
Install berms or other measures to contain spills and prevent work surface runoff from entering storm
drains.
Develop and follow a spill prevention plan. This includes a variety of measures such as spill kits and
knowing where storm drains are located and how to protect them (e.g., drain mat, berm) when larger
spills occur. (See the Spill Prevention, Containment and Control BMP for more information.)
Conduct periodic employee training to reinforce proper disposal practices.
Promptly transfer used fluids to recycling drums or hazardous waste containers.
Store cracked batteries in leak-proof secondary containers.
Inspect outdoor storage areas regularly for drips, spills and improperly stored materials (unlabeled
containers, auto parts that might contain grease or fluids, etc.). This is particularly important for
parking areas for vehicles awaiting repair.
Structural stormwater BMPs in vehicle hotspot areas require routine cleanout of oil and grease,
sometimes monthly or more frequently. During periods of heavy rainfall, cleanout is required more
often to ensure that pollutants are not washed through the trap. Sediment removal is also required on
a regular basis to keep the BMP working efficiently.
Vehicle Maintenance, Fueling and Storage S-7
November 2010 Urban Drainage and Flood Control District VFM-3
Urban Storm Drainage Criteria Manual Volume 3
Vehicle Fueling
Designated fueling areas should be designed to prevent stormwater runoff and spills. For example,
fuel-dispensing areas should be paved with concrete or an equivalent impervious surface, with an
adequate slope to prevent ponding, and separated from the rest of the site by a grade break or berm
that prevents run-on of stormwater.
Fuel dispensing areas should be covered. The cover's minimum dimensions must be equal to or
greater than the area within the grade break or the fuel dispensing area so that the fueling area is
completely covered. It may be necessary to install and maintain an oil capture device in catch basins
that have the potential to receive runoff from the fueling area.
For facilities where equipment is being fueled with a mobile fuel truck, establish a designated fueling
area. Place temporary "caps" over nearby catch basins or manhole covers so that if a spill occurs, it is
prevented from entering the storm drain. A form of secondary containment should be used when
transferring fuel from the tank truck to the fuel tank. Storm drains in the vicinity should also be
covered. Install vapor recovery nozzles to help control drips, as well as reduce air pollution.
Keep spill response information and spill cleanup materials onsite and readily available.
Fuel-dispensing areas should be inspected regularly and repair promptly completed. Inspectors
should:
o Check for external corrosion and structural failure in aboveground tanks.
o Check for spills and overfills due to operator error.
o Check for failure of any piping systems.
o Check for leaks or spills during pumping of liquids or gases from a truck or rail car to a storage
facility or vice versa.
o Visually inspect new tank or container installations for loose fittings, poor welds, and improper or
poorly fitted gaskets.
o Inspect tank foundations, connections, coatings, tank walls, and piping systems. Look for
corrosion, leaks, cracks, scratches, and other physical damage that may weaken the tank or
container system.
Aboveground and belowground tanks should be tested periodically for integrity by a qualified
professional.
Dry cleanup methods should be employed when cleaning up fuel-dispensing areas. Such methods
include sweeping to remove litter and debris and using rags and absorbents for leaks and spills.
Water should not be used to wash these areas. During routine cleaning, use a damp cloth on the
pumps and a damp mop on the pavement, rather than spraying with a hose. Fuel dispensing nozzles
should be fitted with "hold-open latches" (automatic shutoff) except where prohibited by local fire
departments. Signs can be posted at the fuel dispenser or island warning vehicle owners/operators
against "topping off" vehicle fuel tanks.
Written procedures that describe these BMPs should be provided to employees who will be using
fueling systems.
Vehicle Tracking Control (VTC) SM-4
November 2010 Urban Drainage and Flood Control District VTC-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph VTC-1. A vehicle tracking control pad constructed with
properly sized rock reduces off-site sediment tracking.
Description
Vehicle tracking controls provide
stabilized construction site access where
vehicles exit the site onto paved public
roads. An effective vehicle tracking
control helps remove sediment (mud or
dirt) from vehicles, reducing tracking onto
the paved surface.
Appropriate Uses
Implement a stabilized construction
entrance or vehicle tracking control where
frequent heavy vehicle traffic exits the
construction site onto a paved roadway. An
effective vehicle tracking control is
particularly important during the following conditions:
Wet weather periods when mud is easily tracked off site.
During dry weather periods where dust is a concern.
When poorly drained, clayey soils are present on site.
Although wheel washes are not required in designs of vehicle tracking controls, they may be needed at
particularly muddy sites.
Design and Installation
Construct the vehicle tracking control on a level surface. Where feasible, grade the tracking control
towards the construction site to reduce off-site runoff. Place signage, as needed, to direct construction
vehicles to the designated exit through the vehicle tracking control. There are several different types of
stabilized construction entrances including:
VTC-1. Aggregate Vehicle Tracking Control. This is a coarse-aggregate surfaced pad underlain by a
geotextile. This is the most common vehicle tracking control, and when properly maintained can be
effective at removing sediment from vehicle tires.
VTC-2. Vehicle Tracking Control with Construction Mat or Turf Reinforcement Mat. This type of
control may be appropriate for site access at very small construction sites with low traffic volume over
vegetated areas. Although this application does not typically remove sediment from vehicles, it helps
protect existing vegetation and provides a stabilized entrance.
Vehicle Tracking Control
Functions
Erosion Control Moderate
Sediment Control Yes
Site/Material Management Yes
SM-4 Vehicle Tracking Control (VTC)
VTC-2 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Photograph VTC-2. A vehicle tracking control pad with wheel wash
facility. Photo courtesy of Tom Gore.
VTC-3. Stabilized Construction Entrance/Exit with Wheel Wash. This is an aggregate pad, similar
to VTC-1, but includes equipment for tire washing. The wheel wash equipment may be as simple as
hand-held power washing equipment to more advance proprietary systems. When a wheel wash is
provided, it is important to direct wash water to a sediment trap prior to discharge from the site.
Vehicle tracking controls are sometimes installed in combination with a sediment trap to treat runoff.
Maintenance and Removal
Inspect the area for degradation and
replace aggregate or material used for a
stabilized entrance/exit as needed. If the
area becomes clogged and ponds water,
remove and dispose of excess sediment
or replace material with a fresh layer of
aggregate as necessary.
With aggregate vehicle tracking controls,
ensure rock and debris from this area do
not enter the public right-of-way.
Remove sediment that is tracked onto the
public right of way daily or more
frequently as needed. Excess sediment
in the roadway indicates that the
stabilized construction entrance needs
maintenance.
Ensure that drainage ditches at the
entrance/exit area remain clear.
A stabilized entrance should be removed only when there is no longer the potential for vehicle tracking to
occur. This is typically after the site has been stabilized.
When wheel wash equipment is used, be sure that the wash water is discharged to a sediment trap prior to
discharge. Also inspect channels conveying the water from the wash area to the sediment trap and
stabilize areas that may be eroding.
When a construction entrance/exit is removed, excess sediment from the aggregate should be removed
and disposed of appropriately. The entrance should be promptly stabilized with a permanent surface
following removal, typically by paving.
Vehicle Tracking Control (VTC) SM-4
November 2010 Urban Drainage and Flood Control District VTC-3
Urban Storm Drainage Criteria Manual Volume 3
SM-4 Vehicle Tracking Control (VTC)
VTC-4 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Vehicle Tracking Control (VTC) SM-4
November 2010 Urban Drainage and Flood Control District VTC-5
Urban Storm Drainage Criteria Manual Volume 3
SM-4 Vehicle Tracking Control (VTC)
VTC-6 Urban Drainage and Flood Control District November 2010
Urban Storm Drainage Criteria Manual Volume 3
Wind Erosion/Dust Control (DC) EC-14
November 2010 Urban Drainage and Flood Control District DC-1
Urban Storm Drainage Criteria Manual Volume 3
Photograph DC-1. Water truck used for dust suppression. Photo
courtesy of Douglas County.
Description
Wind erosion and dust control BMPs
help to keep soil particles from entering
the air as a result of land disturbing
construction activities. These BMPs
include a variety of practices generally
focused on either graded disturbed areas
or construction roadways. For graded
areas, practices such as seeding and
mulching, use of soil binders, site
watering, or other practices that provide
prompt surface cover should be used.
For construction roadways, road
watering and stabilized surfaces should
be considered.
Appropriate Uses
Dust control measures should be used on any site where dust poses a problem to air quality. Dust control
is important to control for the health of construction workers and surrounding waterbodies.
Design and Installation
The following construction BMPs can be used for dust control:
An irrigation/sprinkler system can be used to wet the top layer of disturbed soil to help keep dry soil
particles from becoming airborne.
Seeding and mulching can be used to stabilize disturbed surfaces and reduce dust emissions.
Protecting existing vegetation can help to slow wind velocities across the ground surface, thereby
limiting the likelihood of soil particles to become airborne.
Spray-on soil binders form a bond between soil particles keeping them grounded. Chemical
treatments may require additional permitting requirements. Potential impacts to surrounding
waterways and habitat must be considered prior to use.
Placing rock on construction roadways and entrances will help keep dust to a minimum across the
construction site.
Wind fences can be installed on site to reduce wind
speeds. Install fences perpendicular to the prevailing
wind direction for maximum effectiveness.
Maintenance and Removal
When using an irrigation/sprinkler control system to aid in
dust control, be careful not to overwater. Overwatering will
cause construction vehicles to track mud off-site.
Wind Erosion Control/
Dust Control
Functions
Erosion Control Yes
Sediment Control No
Site/Material Management Moderate
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX G – LAND DISTURBANCE / CONTROL MEASURE /
STABILIZATION LOG
Land Disturbance / BMP Installation / Stabilization Log
Date
Initiated
Description of Activity
Date
Ceased
Identification of BMP / Stabilization Method
Date
Implemented
Date
Removed
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX H – CDPHE ENVIRONMENTAL SPILL REPORTING
involving a radioactive or infectious material, or there
is a release of a marine pollutant.
Spills and incidents that have or may result in a spill
along a highway must be reported to the nearest law
enforcement agency immediately. The Colorado
State Patrol and CDPHE must also be notified as
soon as possible. In the event of a spill of hazardous
waste at a transfer facility, the transporter must notify
CDPHE within 24 hours if the spill exceeds 55 gallons
or if there is a fire or explosion.
The National Response Center should be notified as
soon as possible after discovery of a release of a
hazardous liquid or carbon dioxide from a pipeline
system if a person is killed or injured, there is a fire or
explosion, there is property damage of $50,000 or
more, or any nearby water body is contaminated.
The National Response Center and the Colorado
Public Utilities Commission Gas Pipeline Safety
Section must be notified as soon as possible, but not
more than two hours after discovery of a release of
gas from a natural gas pipeline or liquefied natural
gas facility if a person is killed or injured, there is an
emergency shutdown of the facility, or there is
property damage of $50,000 or more. The Colorado
Public Utilities Commission should also be notified if
there is a gas leak from a pipeline, liquefied natural
gas system, master meter system or a propane
system that results in the evacuation of 50 or more
people from an occupied building or the closure of a
roadway.
Oil and Gas Exploration
All Class I major events on federal lands, including
releases of hazardous substances in excess of the
CERCLA reportable quantity and spills of more than
100 barrels of fluid and/or 500 MCF of gas released,
must be reported to the Bureau of Land Management
(BLM) immediately. Spills of oil, gas, salt water, toxic
liquids and waste materials must also be reported to
the BLM and the surface management agency.
Spills of exploration and production (E&P) waste on
state or private lands in excess of 20 barrels, and
spills of any size that impact or threaten to impact
waters of the state, an occupied structure, or public
byway must be reported to the Colorado Oil and Gas
Conservation Commission as soon as practicable, but
not more than 24 hours after discovery. Spills of any
size that impact or threaten to impact waters of the
state must be reported to CDPHE immediately. Spills
that impact or threaten to impact a surface water
intake must be reported to the emergency contact for
that facility immediately after discovery. Spills of
more than five (5) barrels of E&P waste must be
reported in writing to the Oil and Gas Conservation
Commission within 10 days of discovery.
REPORTING NUMBERS
National Response Center (24-hour)
1-800-424-8802
CDPHE Colorado Environmental Release and
Incident Reporting Line (24-hour)
1-877-518-5608
ENVIRONMENTAL SPILL REPORTING
CERCLA, EPCRA and RCRA
The Comprehensive Environmental Response,
Compensation and Liability Act (CERCLA) and the
Emergency Planning and Community Right-to-Know
Act (EPCRA) require that a release of a reportable
quantity or more of a hazardous substance to the
environment be reported immediately to the
appropriate authorities when the release is
discovered.
Under CERCLA, reportable quantities were
established for hazardous substances listed or
designated under other environmental statutes.
These include:
all hazardous air pollutants (HAPs) listed under
Section 112(b) of the Clean Air Act.
all toxic pollutants designated under Section
307(a) or Section 311(b)(2)(A) of the Clean
Water Act.
all Resource Conservation and Recovery Act
(RCRA) characteristic and listed hazardous
wastes.
any element, compound, or substance
designated under Section 102 of CERCLA.
EPCRA established a list of extremely hazardous
substances (EHS) that could cause serious
irreversible health effects from accidental releases.
Many substances appear on both the CERCLA and
EPCRA lists. EPCRA extremely hazardous
substances that are also CERCLA hazardous
substances have the same reportable quantity (RQ)
as under CERCLA. EPCRA extremely hazardous
substances that are not listed under CERCLA have a
reportable quantity that is equal to their threshold
planning quantity (TPQ). A list of CERCLA reportable
quantities is included in 40 CFR Section 302.4. A list
of EPCRA threshold planning quantities is included in
40 CFR Part 355 Appendices A & B.
CERCLA-reportable releases must be reported
immediately to the National Response Center (NRC),
while EPCRA-reportable releases must be reported
immediately to the National Response Center, the
State Emergency Response Commission (SERC) and
the affected Local Emergency Planning Committee
(LEPC). If the release is an EPCRA extremely
hazardous substance, but not a CERCLA hazardous
substance, and there is absolutely no potential to
affect off-site persons, then only the State Emergency
Planning Commission (represented by CDPHE for
reporting purposes) and the Local Emergency
Planning Committee need to be notified.
In the case of a release of hazardous waste stored in
tanks, RCRA-permitted facilities and large quantity
generators must also notify CDPHE within 24 hours of
any release to the environment that is greater than
one (1) pound.
Radiation Control
Each licensee or registrant must report to the
Radiation Incident Reporting Line in the event of lost,
stolen or missing licensed or registered radioactive
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX I – SWMP INSPECTION REPORTS
CONSTRUCTION STORMWATER SITE INSPECTION REPORT
Facility Name Permittee
Date of Inspection Weather Conditions
Permit Certification # Disturbed Acreage
Phase of Construction Inspector Title
Inspector Name
Is the above inspector a qualified stormwater manager?
(permittee is responsible for ensuring that the inspector is a qualified stormwater manager)
YES NO
INSPECTION FREQUENCY
Check the box that describes the minimum inspection frequency utilized when conducting each inspection
At least one inspection every 7 calendar days
At least one inspection every 14 calendar days, with post-storm event inspections conducted within
24 hours after the end of any precipitation or snowmelt event that causes surface erosions
• This is this a post-storm event inspection. Event Date: _____________________
Reduced inspection frequency - Include site conditions that warrant reduced inspection frequency
• Post-storm inspections at temporarily idle sites
• Inspections at completed sites/area
• Winter conditions exclusion
Have there been any deviations from the minimum inspection schedule?
If yes, describe below.
YES NO
INSPECTION REQUIREMENTS*
i. Visually verify all implemented control measures are in effective operational condition and are working as
designed in the specifications
ii. Determine if there are new potential sources of pollutants
iii. Assess the adequacy of control measures at the site to identify areas requiring new or modified control measures
to minimize pollutant discharges
iv. Identify all areas of non-compliance with the permit requirements, and if necessary, implement corrective action
*Use the attached Control Measures Requiring Routine Maintenance and Inadequate Control Measures Requiring
Corrective Action forms to document results of this assessment that trigger either maintenance or corrective actions
AREAS TO BE INSPECTED
Is there evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater
drainage system or discharging to state waters at the following locations?
NO YES
If "YES” describe discharge or potential for discharge below.
Document related maintenance, inadequate control measures
and corrective actions Inadequate Control Measures
Requiring Corrective Action form
Construction site perimeter
All disturbed areas
Designated haul routes
Material and waste storage areas
exposed to precipitation
Locations where stormwater has the
potential to discharge offsite
Locations where vehicles exit the site
Other: ____________________
CONTROL MEASURES REQUIRING ROUTINE MAINTENANCE
Definition: Any control measure that is still operating in accordance with its design and the requirements of the permit, but requires maintenance to prevent a
breach of the control measure. These items are not subject to the corrective action requirements as specified in Part I.B.1.c of the permit.
Are there control measures requiring maintenance? NO YES
If “YES” document below
Date
Observed Location Control Measure Maintenance Required
Date
Completed
INADEQUATE CONTROL MEASURES REQUIRING CORRECTIVE ACTION
Definition: Any control measure that is not designed or implemented in accordance with the requirements of the permit and/or any control measure that is not
implemented to operate in accordance with its design. This includes control measures that have not been implemented for pollutant sources. If it is infeasible
to install or repair the control measure immediately after discovering the deficiency the reason must be documented and a schedule included to return the
control measure to effective operating condition as possible.
Are there inadequate control measures requiring corrective action? NO YES
If “YES” document below
Are there additional control measures needed that were not in place at the time of inspection? NO YES
If “YES” document below
Date
Discovered Location
Description of Inadequate
Control Measure Description of Corrective Action
Was deficiency corrected when
discovered? YES/NO
if “NO” provide reason and schedule to correct
Date
Corrected
REPORTING REQUIREMENTS
The permittee shall report the following circumstances orally within twenty-four (24) hours from the time the permittee becomes aware of the circumstances,
and shall mail to the division a written report containing the information requested within five (5) working days after becoming aware of the following
circumstances. The division may waive the written report required if the oral report has been received within 24 hours.
All Noncompliance Requiring 24-Hour Notification per Part II.L.6 of the Permit
a. Endangerment to Health or the Environment
Circumstances leading to any noncompliance which may endanger health or the environment regardless of the cause of the incident (See Part II.L.6.a
of the Permit)
This category would primarily result from the discharge of pollutants in violation of the permit
b. Numeric Effluent Limit Violations
o Circumstances leading to any unanticipated bypass which exceeds any effluent limitations (See Part II.L.6.b of the Permit)
o Circumstances leading to any upset which causes an exceedance of any effluent limitation (See Part II.L.6.c of the Permit)
o Daily maximum violations (See Part II.L.6.d of the Permit)
Numeric effluent limits are very uncommon in certifications under the COR400000 general permit. This category of noncompliance only applies if
numeric effluent limits are included in a permit certification.
Has there been an incident of noncompliance requiring 24-hour notification? NO YES
If “YES” document below
Date and
Time of
Incident
Location Description of
Noncompliance Description of Corrective Action
Date and Time of
24 Hour Oral
Notification
Date of 5 Day Written
Notification *
*Attach copy of 5 day written notification to report. Indicate if written notification was waived, including the name of the division personnel who granted waiver.
After adequate corrective action(s) and maintenance have been taken, or where a report does not identify
any incidents requiring corrective action or maintenance, the individual(s) designated as the Qualified
Stormwater Manager, shall sign and certify the below statement:
“I verify that, to the best of my knowledge and belief, all corrective action and maintenance items identified
during the inspection are complete, and the site is currently in compliance with the permit.”
______________________________________ _______________________________________
Name of Qualified Stormwater Manager Title of Qualified Stormwater Manager
______________________________________ _______________________________________
Signature of Qualified Stormwater Manager Date
Notes/Comments
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX J – CONTROL MEASURE CORRECTIVE ACTION LOG
BMP Corrective Action Log
Date
Identified
Inspector Description of BMP Deficiency Corrective Action Taken
Date
Completed
WOODSPRING SUITES │ SWMP REPORT
MARCH 26, 2019
APPENDIX K – SWMP AMENDMENT LOG
SWMP Amendment Log
Amendment
Number
Date Inspector Description of Amendment
materials or radiation machines, releases of
radioactive materials, contamination events, and fires
or explosions involving radioactive materials.
Releases of radionuclides are reportable under
CERCLA.
Clean Water Act
The Clean Water Act requires the person in charge of
a facility or vessel to immediately report to the
National Response Center all discharges of oil or
designated hazardous substances to water. Oil
means oil of any kind or form. Designated hazardous
substances are included in the CERCLA list.
The Clean Water Act also requires that facilities with a
National Pollutant Discharge Elimination System
(NPDES) permit report to the National Response
Center within 24 hours of becoming aware of any
unanticipated bypasses or upsets that cause an
exceedance of the effluent limits in their permit and
any violations of their maximum daily discharge limits
for pollutants listed in their permit.
A release of any chemical, oil, petroleum product,
sewage, etc., which may enter waters of the state of
Colorado (which include surface water, ground water
and dry gullies and storm sewers leading to surface
water) must be reported immediately to CDPHE. Any
accidental discharge to the sanitary sewer system
must be reported immediately to the local sewer
authority and the affected wastewater treatment plant.
For additional regarding releases to water, please see
“Guidance for Reporting Spills under the Colorado
Water Quality Control Act and Colorado Discharge
Permits” at
http://www.cdphe.state.co.us/op/wqcc/Resources/Gui
dance/spillguidance.pdf.
Clean Air Act
Hazardous air pollutants (HAPs) are designated as
hazardous substances under CERCLA. If a facility
has an air permit but the permit does not allow for or
does not specify the release of a substance, or if the
facility does not have an air permit, then all releases
in excess of the CERCLA / EPCRA reportable
quantity for that substance must be reported to the
National Response Center and CDPHE. If the facility
releases more of a substance than is allowed under
its air permit, the facility must also report the release.
Discharges of a substance that are within the
allowable limits specified in the facility’s permit do not
need to be reported.
Regulated Storage Tanks
Owners and operators of regulated storage tank
systems must report a release or suspected release
of regulated substances to the Division of Oil and
Public Safety at the Colorado Department of Labor
and Employment within 24 hours. Under this
program, the reportable quantity for petroleum
releases is 25 gallons or more, or any amount that
causes a sheen on nearby surface water. Spills of
less than 25 gallons of petroleum must be
immediately contained and cleaned up. If cleanup
cannot be accomplished within 24 hours, the Division
of Oil and Public Safety must be notified immediately.
Spills of hazardous substances from tanks in excess
of the CERCLA or EPCRA reportable quantity must
be reported immediately to the National Response
Center, CDPHE and the local fire authority, and to the
Division of Oil and Public Safety within 24 hours.
Transportation and Pipelines
The person in physical possession of a hazardous
material must notify the National Response Center
as soon as practical, but not to exceed 12 hours after
the incident, if as a direct result of the hazardous
material, a person is killed or injured, there is an
evacuation of the general public lasting more than an
hour, a major transportation artery is shut down for an
hour or more, the flight pattern of an aircraft is altered,
there is fire, spillage or suspected contamination
Radiation Incident Reporting Line (24-hour)
303-877-9757
Colorado State Patrol (24-hour)
303-239-4501
Division of Oil and Public Safety
(business hours)
303-318-8547
Oil and Gas Conservation Commission
(business hours)
303-894-2100
Colorado Public Utilities Commission Gas
Pipeline Safety Section (business hours)
303-894-2851
Local Emergency Planning Committees
(to obtain list, business hours)
720-852-6603
Environmental
Spill Reporting
Colorado Department of Public
Health and Environment
Denver, CO 80246-1530
http://www.cdphe.state.co.us
January 2009
4300 Cherry Creek Drive South
When a release of a hazardous material or other
substance occurs to the environment, there are
a number of reporting and notification
requirements that must be followed by the
company or individual responsible for the
release. Most spills are covered by more than
one reporting requirement, and all requirements
must be met. In addition to verbal notification,
written reports are generally required. This
brochure briefly explains the major
requirements. A more detailed description is
provided in the “Reporting Environmental
Releases in Colorado” Guidance Document,
available on the web.
Releases that must be reported to the Colorado
Department of Public Health and Environment
(CDPHE) may be reported to the Colorado
Environmental Release and Incident Reporting
Line.
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: Larimer County Area, Colorado
Survey Area Data: Version 13, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Sep 20, 2015—Oct
21, 2017
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.
Custom Soil Resource Report
7
Background
Aerial Photography
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.
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: Larimer County Area, Colorado
Survey Area Data: Version 13, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Sep 20, 2015—Oct
21, 2017
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.
Custom Soil Resource Report
7
of the version date(s) listed below.
Soil Survey Area: Larimer County Area, Colorado
Survey Area Data: Version 13, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Sep 20, 2015—Oct
21, 2017
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.
Custom Soil Resource Report
8
Utility Locate Potholing Fee: $
$10.00 per Pothole
Pavement Impact Fee: $
_ ____ x _____
Excavation ft
2
x Cost/ ft
2
1 to 100 $ 3.85
101 to 500 2.75
501 to 3,000 2.20
over 3,000 1.65
Impact Fee Tripled if
pavement is less than
5 years
Pavement Age:
Sub-total $
Previous Payments - $
Total Due: $
Date Paid:
Cash Check #
Account #
Field verification of excavation size:
Conditions:
Engineering Approval:
Date:
Applicant has read this permit and agrees to abide by the City of Fort Collins Standard Plans and Specifications and to any ordinances,
special conditions, restrictions, and regulations that may be imposed by the Department of Engineering.
Applicant's Signature: Date:
Notify the Engineering Inspection Recorder at 416-2779
48 hours prior to any construction in the public right-of way.
Revised 5/08
1.
2.
3.
4.
5.
inclusive with respect to stormwater management responsibilities. The Permittee / Operator shall
familiarize themselves with the City requirements and SWMP, and implement stormwater management
strategies based upon the recommendations identified herein and varying site conditions.