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HomeMy WebLinkAbout13.2_SWPPP_02-04-2020AGENCY USE ONLY PERMIT NO.:Date Rec’d.:Amount Rec’d.:Check No.:Rec’d By: WATER PROTECTION BUREAU FORM SWPPP 2018 Storm Water Pollution Prevention Plan (SWPPP) Form Storm Water Discharge Associated With Construction Activity MTR100000 READ THIS BEFORE COMPLETING FORM:The Form SWPPP is intended to assist operators in developing a SWPPP which complies with Part 3 of the General Permit for Storm Water Discharges Associated with Construction Activity (General Permit). It is the permittee’s responsibility to ensure all required items in the General Permit are adequately addressed and that the SWPPP is developed, implemented, and maintained. Additional information may be needed to supplement the Form SWPPP. For additional information, please call: (406) 444-3080 or visit: http://deq.mt.gov/wqinfo/mpdes/stormwaterconstruction.mcpx Section A -SWPPP Status:(Check one) New No prior SWPPP submitted for this site. Modificatio Permit Number: MTR10 __ __ __ __ (Please specify these four numbers) Section B - Facility or Site Information: Site Name ________________________________________________________________________________ Site Location Nearest City or Town County Section C - Applicant (Owner/Operator) Information: Owner or Operator Name Mailing Address City, State, and Zip Code Phone Number Section D SWPPP Preparer and SWPPP Administrator SWPPP Preparer: Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________ Collins Apartments Located at the SW corner of the intersection of Warbler Way and Catalyst St. Bozeman Gallatin Springer Group 626 East Cottonwood Bozeman, MT 59715 406-585-2400 Derek Dennehy 895 Technology Blvd Suite 203 586 0262 Bozeman, MT 59718 BMP 202 derek@mad-eng.com 2/17/18 SWPPP Administrator:Same as above Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________ Section E – Site Description ( 1. Describe the nature of the construction activity and what is being constructed. 2. Describe all support activities and associated storm water discharges dedicated to the construction activity including but not limited to: material borrow areas, material fill areas, concrete or asphalt batch plants, equipment staging areas, access roads/corridors, material storage areas, and material crushing/recycling /processing areas. 3. Provide an estimate of the total area of the site, and an estimate of the area of the site expected to undergo construction-related disturbance (including all construction-related support activities). Total Site Area (acres): ____________ Area of Construction-Related Disturbance (acres): ____________ 4. Describe the character and erodibility of soil(s) and other earth material to be disturbed at the site, including cut/fill material to be used. SWPPP Administrator: Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________ Tim Staub 895 Technology Blvd,Suite 203 Bozeman,MT 59718 406-586-0262 tims@mad-eng.com BMP 201 and 202 9/22/17 The project consists of the construction of four multi-residential apartment buildings. Water and sewer services will be installed at each building, and an asphalt road will also be constructed. An on-site stormwater retention/infiltration basin has been designed for stormwater flows. Support activities include earth excavation, utility trenching, equipment staging and storage areas, temporary access drive construction, site grading, landscaping, and final stabilization. There will be no concrete or asphalt batch plants, materials crushing or recycling or processing areas. 1.11 1.11 In situ soil conditions are typical for the area, based on the NRCS soil map. This consists of the soil types straw loam and blackdog silt loam with 0-4% slopes. These are both well-drained soils with a high capacity for infiltration. 6. For a storm water discharge associated with construction activity with construction-related disturbance of five acres or more of total land area (based on the acreage provided in item E.3 above): a. Provide an estimate of the runoff coefficient of the site, both before and after construction, and describe what supporting information this determination is based upon: Runoff coefficient before construction: ____________ Runoff coefficient after construction: ____________ Supporting Information Source: b.Provide an estimate of the increase in impervious area after the construction activity is completed: ________ Percent. Outfall Number Receiving Surface Water Drainage Area Associated with Type of Discharge Latitude and Longitude of Outfall Discharge to Municipal Storm 005 006 007 008 009 010 5. Provide a brief description of the existing vegetation at the site and an estimate of the percent density of vegetative ground cover. Specify Percent Density of Existing Vegetation: _________________ 00 00 00 00 Existing vegetation at the site consists of native grasses and weeds. 70 75 East Catron Creek 1.11 45.712982, -111.076534 Section – Identification and Summary of Potential Pollutant Sources (Part 3.4) Select the pollutants expected to be present on the construction project: Additional Pollutants List any additional pollutants likely to be present at the construction project. Non-Storm Water Discharges Select the types of allowable non-storm water discharges likely to be present at the construction project. Type of Allowable Non-Storm Water Discharge Present at Construction Project Irrigation Drainage Landscape Watering Pavement Wash Waters Routine Building Wash Down Uncontaminated spring or ground water Water used for dust control Emergency fire-fighting activities Foundation or footing drains Incidental windblown mist from cooling towers Uncontaminated condensate from air conditioners, coolers, or other compressors Other Explain ___________________________ Soils Areas of Shallow Grade Areas of Steep Grade Slopes Ditch Stockpiles Contaminated Soils Import and Export Operations Entrance / Exit Locations Other Explain_______________________ Materials Loading and Unloading Operations Storage of building materials Storage of chemicals Portable Toilets Concrete Batch Plant Asphalt Batch Plant Worker Trash Demolition Materials / Debris Other Explain ____________________ Activities Concrete Truck Washout Masonry - Stone / Brick / Concrete Spray / Wand Applications Finish Work – Dry wall / Painting Equipment Washing Washing of Buildings Maintenance of Equipment Refueling Operations Application of herbicides, pesticides, fertilizers Application of solvents or detergents Construction Dewatering Other Explain_____________________ Section – Selection of Best Management Practices (BMPs) (Part 3.5) Select the BMPs to be used during the construction project. All selected BMPs are required to have a specification provided in the SWPPP. The specifications do not have to be submitted to DEQ. The specifications are required to be maintained by the SWPPP Administrator(s) and provided to DEQ, EPA, or other local permitting authority upon request. Additional BMPs List any additional BMPs likely to be used at the construction project. Erosion Control BMPs Surface Roughening Diversion Ditches Velocity Checks / Check Dams Preservation of Existing Vegetation Minimizing Ground Disturbance Mulch – Straw / Compost Tackifiers / Soil Binders Temporary Seeding Erosion Control Blankets Rough Cut Street Controls / Water Bars Channel Liner Stream Crossing Terracing Culvert Outfall / Outlet Protection (Rip Rap) Other ______________________ Run On / Runoff Control BMPs Temporary Slope Drain Rock Run Down Clean Water Diversion Drainage Swales Other ______________________ Sediment Control BMPs Silt Fence Straw Wattles Rock Wattles / Rock Socks Curb Socks Straw Bales Earthen Berms Vegetative Buffers Drainage Ditch / Ditch Berm Gravel Pack Tarps, Plastic, Visqueen Compost Socks Brush Barrier Sandbag Barrier Inlet Protection Vehicle Tracking Control Pad Stabilized Vehicle Entrance Stabilized Parking Area Stabilized Construction Roadway Street Sweeping Sediment Trap Sediment Basin Other ________________________ Administrative Controls Concrete and Liquid Waste Washouts Worker Toilets Construction Fencing Dust Control Secondary Containment Dumpsters / Waste Receptacles Stabilized Staging Area Material Storage and Stockpile Area Paving and Painting Controls Saw Cutting and Grinding Controls Spill Prevention and Response Procedures Traffic Control Back Charging / Penalties Other __________________________ Post Construction BMPs Detention Pond(s) Retention Pond(s) Drainage Swales Infiltration System(s) Dry Well(s) Other __________________________ Local Erosion and Sediment Controls Describe applicable local erosion and sediment control requirements. Dewatering Activities (Part 3.6) Describe dewatering activities associated with the construction project. Identify the BMPs to be used to control dewatering activities and prevent discharges to state waters. If a separate authorization is obtained under the Construction Dewatering General Permit, include the dewatering plan with the SWPPP. 1) Drop inlet protection 2) Contain disturbed areas 3) Mitigate tracking - angular rock trackpad 4) Concrete washout - lined, fully contained 5) Contained material stockpile 6) Vehicle maintenance and storage areas 7) Straw wattles to provide perimeter control 8) Protect post-construction stormwater features 9) Stabilize disturbed areas N/A N/A Major Construction Activity BMPs 2 Phase I - Site Stripping, Clear and Grub Phase II - Road Improvements and Vertical Construction Vehicle Track Pad Straw Wattles Sanitary Waste Facility Trash Receptacles Drop Inlet Protection Good housekeeping Concrete Containment Vegetative Buffer Major Construction Activity Schedule List the major construction activities identified in the table above and provide an estimated timeframe for each major construction activity. For each major construction activity, identify all construction activities that will occur during the proposed major construction activity. Section – Final Stabilization (Part 3.8) Identify the BMPs that will be used to achieve final stabilization. Information to be included is seed mix selection and application methods, soil preparation and amendments, soil stabilization practices, and any temporary BMPs. Section – Post-Construction Storm Water Management (Part 3.9) Identify BMPs that will be used to control storm water discharges that will occur after the major construction activities are complete. Include a description of applicable local requirements. Phase I - ~1 week. This includes clearing the site and stockpiling topsoil. Rough grading of site. Phase II - ~19 months. This includes installation of all utilities, sidewalk, curb/gutter, asphalt, and constructing the buildings. Final stabilization will include a local seed mix of: slender wheatgrass, western wheatgrass, tufted hairgrass, creeping spike, nebraska sedge, baltic rush, bluejoint reedgrass. Temporary BMPs like straw wattles and gravel track pads will be removed once final stabilization has been achieved. Post construction storm water management practices include sheet flow into the gutters, which will allow the storm water runoff to flow into designated stormwater swales and inlets. From here, the stormwater will be directed the the retention infiltration basin located on site. The vegetation along the perimeter of the site and within the site will encourage infiltration of runoff on site. Section – Site Map (Part 3.10) Develop and attach the required SWPPP site maps and plans with the SWPPP. The site maps or plans must clearly indicate all the required information in Part 3. of the General Permit. This means SWPPP site maps must be of sufficient size, scale, and legibility. Section – Inspection and BMP Maintenance Procedures (Part 3.11) Select the inspection schedule for the construction project: Once every 7 calendar days Once every 14 calendar days, and a post-storm event inspection within 24 hours of the end of a rainfall event of 0.25 inches or greater, and/or within 24 hours of runoff from snowmelt Describe the inspection and maintenance procedures that will be used to maintain all erosion, sediment control, and other BMPs in good and effective operating condition. Identify how changes to the SWPPP will occur per Part 3.12 of the General Permit. If post construction BMPs will be used during major construction activities, include a maintenance plan that will transition the BMP from active construction to post construction. Section – Water Quality Controls for Discharges to Impaired Water bodies (Part ) The inspection procedures will follow the requirements of the General Permit. All required inspection locations will be visited and any required maintenance will be noted on the SWPPP. Any unintended discharge will be noted and conveyed to the contractor in order to make necessary maintenance repairs. The SWPPP and site map will be updated each visit to match existing conditions on site. Good communication is necessary between SWPPP Admin. and contractor in order to keep stormwater discharge clean and sediment/pollutant free per the intention of the SWPPP. N/A Section O - CERTIFICATION Permittee Information: This SWPPP must be completed, signed, and certified as follows: For a corporation, by a principal officer of at least the level of vice president; For a partnership or sole proprietorship, by a general partner or the proprietor, respectively; or For a municipality, state, federal, or other public facility, by either a principal executive officer or ranking elected official. Alternatively, this SWPPP may be signed by a duly authorized representative of the person above. A person is a duly authorized representative only if: The authorization is made in writing by a person described above; 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); The written authorization is submitted to the department. All Permittees Must Complete the Following 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 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. [75-5- 633, MCA] A. Name (Type or Print) B. Title (Type or Print) C. Phone No. D. Signature E. Date Signed The Department will not process this form until all of the requested information is supplied, and the appropriate fees are paid. Return this form and the applicable fee to: Department of Environmental Quality Water Protection Bureau PO Box 200901 Helena, MT 59620-0901 (406) 444-3080 Section – Miscellaneous Information Use this space to identify miscellaneous information that is to be included in the SWPPP. Lowell Springer Owner (406)-585-2400