Stormwater Pollution Prevention Plan (SWPPP)
Rod and Gun Club and DATE
Stormwater Pollution Prevention Plan
For:
Cheyenne Mountain Shooting Complex
South of Fort Carson Gate 20
Fort Carson, CO 80913
Operator(s):
Insert Company or Organization Name
Insert Name
Insert Address
Insert City, State, Zip Code
Insert Telephone Number
Insert Fax/Email
Stormwater Manager and SWPPP Contact(s):
Insert Company or Organization Name
Insert Name
Insert Address
Insert City, State, Zip Code
Insert Telephone Number
Insert Fax/Email
SWPPP Preparation Date:
Estimated Project Dates:
Start of Construction: __ __ / __ __ / ______
Completion of Construction: __ __ / __ __ / ______
Table of Contents
SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING 1
1.1 Project/Site Information 1
1.2 Contact Information/Responsible Parties 2
1.3 Nature and Sequence of Construction Activity 3
1.4 Soils, Slopes, Vegetation, and Current Drainage Patterns 4
1.5 Construction Site Estimates 6
1.6 Receiving Waters 6
1.6 Receiving Waters (continued) 7
1.7 Site Features and Sensitive Areas to be Protected 7
1.8 Potential Sources of Pollution 8
1.9 Endangered Species Certification 8
1.10 Historic Preservation 9
1.10 Historic Preservation (Continued) 10
1.11 Maps 10
SECTION 2: EROSION AND SEDIMENT CONTROL BMPS 12
SECTION 3: GOOD HOUSEKEEPING BMPS 35
3.1 Good Housekeeping BMPs 35
3.2 Allowable Non-Stormwater Discharge Management 38
SECTION 4: SELECTING POST-CONSTRUCTION BMPs 39
SECTION 5: INSPECTIONS and MAINTENANCE 41
5.1 Inspections 41
5.2 Maintenance of Controls 43
5.3 Corrective Action Log 43
SECTION 6: Recordkeeping and Training 44
6.1 Recordkeeping 44
6.2 Log of Changes to the SWPPP 44
6.3 Training 45
SECTION 7: FINAL STABILIZATION 46
SECTION 8: CERTIFICATION AND NOTIFICATION 47
SWPPP APPENDICES 48
App A - General Location Map 48
App B - Site Maps 48
App C - Copy of Construction General Permit 48
App D - Copy of NOI and acknowledgement letter from EPA/State 48
App E - Inspection Reports 48
App F - Corrective Action Log (or in Section 5.3) 48
App G - Log of Changes and Updates to SWPPP (or in Section 6.3) 48
App H - Subcontractor Certifications/Agreements 48
App I - BMP specifications and details 48
App J - Additional Information (i.e., Endangered Species and Historic Preservation documentation) 48
13
EPA SWPPP Template, Version 1.0, January 9, 2007
Stormwater Pollution Prevention Plan (SWPPP)
Rod and Gun Club and DATE
SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING
1.1 Project/Site Information
Instructions:
· In this section you can gather some basic site information that will be helpful to you later when you file for permit coverage.
· For more information, see Developing Your Stormwater Pollution Prevention Plan: A SWPPP Guide for Construction Sites (also known as the “SWPPP Guide”), Chapter 2
· Detailed information on determining your site’s latitude and longitude can be found at www.epa.gov/npdes/stormwater/latlong
Project Information:
Project/Site Name: Cheyenne Mountain Shooting Complex
Project Street/Location: South of Fort Carson Gate 20
City: Fort Carson State: CO Zip Code: 80913
County or Similar Subdivision: El Paso County
Latitude/Longitude
Latitude: Longitude:
38.717612 º N (decimal) -104.730906 º W (decimal)
Method for determining latitude/longitude:
USGS topographic map (specify scale: ______) EPA Web site GPS
Other (please specify): Google Maps
Is the project located in Indian country? Yes No
If yes, name of Reservation, or if not part of a Reservation, indicate "not applicable." not applicable
Is this project considered a federal facility? Yes No
NPDES project or permit tracking number: NEED NOI
(This is the unique identifying number assigned to your project by your permitting authority after you have applied for coverage under the appropriate NPDES construction general permit.)
1.2 Contact Information/Responsible Parties
Instructions:
· List the operator(s), project managers, stormwater manager, and person or organization that prepared the SWPPP. Indicate respective responsibilities, where appropriate.
· Also, list subcontractors expected to work on-site. Notify subcontractors of stormwater requirements applicable to their work.
· See SWPPP Guide, Chapter 2.B. and your construction general permit for the definition of operator.
Project Information:
Operator(s):
Insert Company or Organization Name
Insert Name
Insert Address
Insert City, State, Zip Code
Insert Telephone Number
Insert Fax/Email
Project Manager(s) or Site Supervisor(s):
Insert Name
Insert Company or Organization Name
Insert Address
Insert City, State, Zip Code
Insert Telephone Number
Insert Fax/Email
Stormwater Manager and SWPPP Contact(s):
Insert Name
Insert Company or Organization Name
Insert Address
Insert City, State, Zip Code
Insert Telephone Number
Insert Fax/Email (Optional)
This SWPPP Was Prepared By:
Jessica Frank
Fort Carson - Directorate of Public Works
1626 Evans Street, BLDG 1219
Fort Carson, CO 80913
Phone: 719.526.1697
Fax: 719.526.1705
Emergency 24 hour contact:
Insert Name
Insert Telephone Number
1.3 Nature and Sequence of Construction Activity
Instructions:
· Briefly describe the nature of the construction activity and approximate timeframes (one or more paragraphs, depending on the nature and complexity of the project).
· See SWPPP Guide, Chapter 3.A. for more information.
Project Information:
Describe the general scope of the work for the project, major phases of construction, etc:
Phase I
The endstate for Phase I is the construction of 6 operational weapons ranges, road access, and an operational, but temporary clubhouse facility.
Phase II
The endstate for Phase II is a 7,500 square foot permanent clubhouse with all utilities. The clubhouse would include a lobby, management offices, retail space, classrooms, lounge area, male and female latrines, and a storage area. A 45,000 square foot parking lot and 5 combination trap and skeet fields would be constructed in Phase II.
Phase III
The endstate for Phase III is the construction of a 2,500 square foot addition to the clubhouse facility and a 15,000 square foot addition to the parking area. The clubhouse addition would include a kitchen, food storage space, and a loading dock. It would house an area for a theme restaurant or snack bar to include a commercial kitchen with walk-in refrigeration and freezer. The restaurant and/or snack bar would accommodate approximately 100 seats and serve as a social gathering place for the facility users. The clubhouse would also include dry storage areas, preparation areas, and a loading/receiving area.
· What is the function of the construction activity?
Residential Commercial Industrial Road Construction
Linear Utility
Other (please specify):______
Estimated Project Start Date: __ __ / __ __ / ______
Estimated Project Completion Date: __ __ / __ __ / ______
1.4 Soils, Slopes, Vegetation, and Current Drainage Patterns
Instructions:
· Describe the existing soil conditions at the construction site including soil types, slopes and slope lengths, drainage patterns, and other topographic features that might affect erosion and sediment control.
· Also, note any historic site contamination evident from existing site features and known past usage of the site.
· This information should also be included on your site maps (See SWPPP Guide, Chapter 3.C.).
· For more information, see SWPPP Guide, Chapter 3.A. for more information.
Project Information:
Soil type(s):
The soil composition of the proposed R&G Club site was collected from the U.S. Department of Agriculture (USDA) Natural Resource Conservation Service (USDA, 2010) and descriptions were taken from the Soil Survey of El Paso County Area, Colorado (USDA, 1981). The soil types on this site include Schamber-Razor Complex, Razor-Midway Complex, and Manzanola Clay.
Schamber-Razor Complex, which has 8 to 50 percent slopes, consists of deep, well-drained soils that occur on eroded breaks and remnants of granite outwash over shale. The erosion hazard is moderate, permeability is rapid, surface runoff is medium to rapid, and available water capacity is low to moderate.
Razor-Midway Complex that consists of gently sloping to moderately steep, clayey soils on uplands. Slopes range from 3 to 25 percent. The soil is well-drained, erosion hazard and available water capacity are moderate, permeability is slow, and surface runoff is medium.
Manzanola clay loam, 1 to 3 percent slopes is a deep, well drained soil that occurs on fans and terraces. Permeability is slow, available water capacity is high, surface runoff is medium, and the hazard of erosion is moderate.
Slopes (describe current slopes and note any changes due to grading or fill activities):
The proposed site is at the base of a hill and water currently runs from west to east across the site. There is a drainage swale to the immediate south of the site that runs to the Clover Ditch to the east. The proposed shooting ranges will be cut into the base of the hill. Side berms will be constructed with side slopes of 3H:1V. Each range will have a backstop with a maximum steepness of 3H:1V. Upon completion of construction, the slope of the ranges will vary from 2% to 4% and water will continue to run west to east. The Clover Ditch will still receive all runoff, as it does now.
Drainage Patterns (describe current drainage patterns and note any changes dues to grading or fill activities):
The northern and eastern portions of Fort Carson, including Range 29, are located within the Fountain Creek watershed of the Arkansas River Basin and drain southeasterly into Fountain Creek. The surface runoff of the proposed project site drains into the Clover Ditch, which is the only surface water in proposed project site.
Vegetation:
The proposed project site is primarily undeveloped and vegetation consists primarily of native short grass prairie. The project site occurs in the foothills grassland and is generally composed of blue grama mixed with taller grasses including wheat grass, needle-and-thread, dropseed, ryegrass, bluestems and sleepy grass. Four-winged saltbush is the primary shrub that is interspersed in some portions of the site.
The area along Clover Ditch contains a riparian corridor dominated by plains cottonwood, Siberian elm, and coyote willow with an understory composed of coyote willow, sandbar willow, and ragweed. Clover Ditch flows from the cantonment area where riparian communities are often invaded by non-native species such as Japanese brome, Eurasian tansy mustard, green ash, and Russian olive and these same species may be present in the proposed project site.
1.5 Construction Site Estimates
Instructions:
· Estimate the area to be disturbed by excavation, grading, or other construction activities, including dedicated off-site borrow and fill areas.
· Calculate the percentage of impervious surface area before and after construction
· Calculate the runoff coefficients before and after construction.
· For more information, see SWPPP Guide, Chapter 3.A. and Appendix C
Project Information:
The following are estimates of the construction site:
Construction Site Area to be disturbed 35 acres
Total Project Area 35 acres
Percentage impervious area before construction 0 %
Runoff coefficient before construction .45
Percentage impervious area after construction 0.4%
Runoff coefficient after construction .51
1.6 Receiving Waters
Instructions:
· List the waterbody(s) that would receive stormwater from your site, including streams, rivers, lakes, coastal waters, and wetlands. Describe each as clearly as possible, such as Mill Creek, a tributary to the Potomac River, etc.
· Note any stream crossings, if applicable.
· List the storm sewer system or drainage system that stormwater from your site could discharge to and the waterbody(s) that it ultimately discharges to.
· If any of the waterbodies above are impaired and/or subject toTMDLs, please list the pollutants causing the impairment and any specific requirements in the TMDL(s) that are applicable to construction sites. Your SWPPP should specifically include measures to prevent the discharge of these pollutants.
· For more information, please see SWPPP Guide, Chapter 3.A. and 3.B.
· Also visit www.epa.gov/npdes/stormwater/tmdl for more information and a list of TMDL contacts and links by state.
1.6 Receiving Waters (continued)
Project Information:
Description of receiving waters: Clover Ditch
The Clover Ditch drainage basin is located in the central and southeastern portion of the Cantonment Area and flows east-southeast. Clover Ditch drains approximately 4.3 square miles and exits Fort Carson south of Magrath Avenue, where it enters Fountain Creek downstream of the Security Sewage Treatment Plant system and upstream of the Fountain Sewage Treatment Plant.
The average stream gradient along Clover Ditch is 0.01, between 40 and 50 feet per mile. Clover Ditch has also been modified through straightening of the channel and increasing its carrying capacity through concrete-lined channels and drop structures. A northern tributary to Clover Ditch was created by cutting a channel along Barkeley Avenue, intercepting runoff from the hills to the northeast and routing water around the motor pools and emptying into the main stem of Clover Ditch below the Wastewater Treatment Plant. The Wastewater Treatment Plant discharges to Clover Ditch approximately one mile upstream from the Fountain Creek confluence, and also upstream of the project location.
Description of storm sewer systems: This project is located within the boundaries of the Fort Carson MS4 Permit # COR4200F
Description of impaired waters or waters subject to TMDLs: Clover Ditch is on Colorado’s 303(d) list for e.coli.
1.7 Site Features and Sensitive Areas to be Protected
Instructions:
· Describe unique site features including streams, stream buffers, wetlands, specimen trees, natural vegetation, steep slopes, or highly erodible soils that are to be preserved.
· Describe measures to protect these features.
· Include these features and areas on your site maps.
· For more information, see SWPPP Guide, Chapter 3.A. and 3.B. for more information
Project Information:
Description of unique features and measures to protect them:
· INSERT TEXT OR TABLE HERE (From the REC if applicable – Stormwater can fill this in)
1.8 Potential Sources of Pollution
Instructions:
· Identify and list all potential sources of sediment from construction materials and activities which may reasonably be expected to affect the quality of stormwater discharges from the construction site.
· Identify and list all potential sources of pollution, other than sediment, from construction materials and activities which may reasonably be expected to affect the quality of stormwater discharges from the construction site.
· See SWPPP Guide, Chapter 3.A. for more information.
Project Information:
Potentials sources of sediment to stormwater runoff:
Activity / BMP/SolutionClearing, Grading, Excavating / Silt fence and inlet protection as shown on drawings, vegetated buffer
Construction Vehicle Traffic / Tracking pad at construction entrance, silt fence, inlet protection as shown on drawings
Potential pollutants and sources, other than sediment, to stormwater runoff: