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HomeMy WebLinkAboutWPO201400004 Plan - Stormwater 2014-02-03 OLD TRAIL SUBDIVISION STORMWATER POLLUTION PREVENTION PLAN And POLLUTION PREVENTION PLAN April 16,2014 August 7,2014 NOTE: This Stormwater Pollution Prevention Plan shall be retained at the project location as well as a copy of the VPDES permit, construction plans, and other materials referenced in this plan. Project Name: Old Trail Subdivision Owner/Operator: March Mountain Properties, LLC 1005 Heathercroft Circle, Suite 100 Crozet, Virginia 22932 702-985-9088 Project Location: Latitude 38.058685 Longitude -78.710134 Located off of Route 250, neighboring Old Trail Drive and Old Trail Village Albemarle County, Virginia Description: (Purpose and Type of Soil Disturbing Activities) The project consists of the construction of subdivision houses, commercial buildings, roads, sanitary and storm sewers, water lines, and stormwater management facilites. Soil disturbing activities will include: clearing and grubbing, installing erosion and sediment control devices, grading, excavation for storm water management facilities, storm sewer and utilities, construction of buildings, roads, and parking lots, and preparation for final stabilization and seeding. Description: (Purpose and Types of Industrial Activities) No industrial activities are proposed for this site. Project Start Date: January 1, 2007 Anticipated Project Completion Date: December 31, 2025 Project A.G. Dillard Inc. Construction Attn. Scott Bradshaw Manager and 295 Memory Lane SWPPP Troy, Virginia 22974 Contact 434-977-3750 Responsible for construction and final stabilization of facility and implementation/updates of SWPPP. Project Roudabush, Gale, & Associates Designer: 914 Monticello Road Charlottesville, Virginia 22902 434-977-0205 Responsible for site plan, erosion control and stormwater management plan preparation and design and SWPPP inspections. SWPPP Roudabush, Gale, & Associates Preparer: 914 Monticello Road Charlottesville, Virginia 22902 434-977-0205 Responsible for preparation of the SWPPP/PPP and inspections. Pollution Prevention Team: The pollution prevention team is responsible for assisting the facility in developing, implementing, maintaining, and revising the facility's SWPPP. Raleigh Davis B.S. Civil Engineer Chris Mulligan Professional Engineer William Ledbetter Licensed Land Surveyor Runoff Coefficient: The final coefficient of runoff for each block is provided in the "Final Construction Plans" for each block and is included with this SWPPP binder. Site Area: The total permitted site area is 91.7 acres. Current area disturbed by construction activities is 53.4 acres. As this area changes, it will be noted/revised in this document. Site Map: A site map is provided in the "Final Construction Plans"for each block. Description of Information on existing vegetation, tree preservation and plantings Existing is provided in the "Final Construction Plans" for each block. Vegetation: Sequence of Major Activities: 1. Install temporary construction entrance. 11. Create temporary fill diversions. 2. Install perimeter erosion control devices. 12. Complete site construction. 3. Install sediment basins and traps. 13. Grading of forebay for biofilter. 4. Clearing and grubbing. 14. Remove temporary outlet 5. Create temporary clean water diversions. structures, remove silt from 6. Install culverts at road crossings. basins, install perforated under 7. Complete grading of road crossings. drains for biofilters. 8. Perform site grading. 15. Prepare biofilter soil mix. 9. Create temporary fill diversions 16. Backfill 10. Perform site grading. 17. Remove erosion control and plant biofilters. measures. Name of Receiving Waters: Slabtown Creek and Lickinghole Creek Erosion and Sediment Controls: Approved erosion and sediment control plans for each block are incorporated by reference as part of this Stormwater Pollution Prevention Plan. Approved plans are included in this SWPPP binder. Stabilization Practices: 1. The purpose of the erosion control measures shown on these plans shall be to preclude the transport of all waterborne sediments resulting from construction activities from entering onto adjacent properties of state waters. If field inspection reveals the inadequacy of the plan to confine sediment to the project site, appropriate modifications will be made to correct any plan deficiencies. In addition to these notes, all provisions of the Virginia Erosion and Sediment Control Regulations shall apply to this project. 2. All erosion and sediment control measures shall be installed and maintained in accordance with the Virginia Erosion and sediment Control Handbook(3`d Edition, 1992) and Virginia Regulations VR 625-02-00 Erosion and Sediment control Regulations. The contractor shall be thoroughly familiar with all applicable measures contained therein which may be pertinent to this project. 3. All points of construction ingress and egress shall be protected by a temporary construction entrance to prevent tracking of mud onto public right-of-ways. An entrance permit from VDOT is required prior to any construction activities within state right-of- ways. Where sediment is transported onto a public road surface, the road shall be thoroughly cleaned at the end of each day. Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual subdivision lots as well as to larger land disturbing activities. 4. A preconstruction meeting shall be held on site between the County, the developer, the project engineer, and the contactor prior to issuance of the land disturbing permit. The contractor shall submit a sequence of construction to the County for approval prior to the preconstruction meeting. The contractor will supply code compliance with the name of the individual who will be responsible to ensuring maintenance o f installed measures on a daily basis. The plan approving authority must be notified one week prior to the preconstruction conference,one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 5. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. 6. Sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to trap sediment onsite must be constructed as a first step in grading and be made functional before upslope land disturbance takes place. Earthen structures such as dams, dikes, and diversions must be seeded and mulched immediately after installation. Periodic inspections of the erosion control measures shall be made to assess their condition. Any necessary maintenance of the measures shall be accomplished immediately upon notification by the County and shall include the repair of measures damaged by any subcontractor including those of the public utility companies. 7. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the plan approving authority. 8. All disturbed areas are to drain to approved sediment control measures at all times during all land disturbing activities and during site development until final stabilization is achieved. 9. Sediment control measures may require minor field adjustments at time of construction to insure their intended purpose is accomplished. Division of code compliance approval will be required for other deviations from the approved plans. 10. Surface flows over cut and fill slopes shall be controlled by either redirecting flows from traversing slopes by installing mechanical devices to safely lower water down slope without causing erosion. A temporary fill diversion(std. and spec. 3.10) shall be installed prior to the end of each working day. 11. During dewatering operations, water will be pumped into an approved filtering device. 12. The contractor shall place soil stockpiles at the locations shown on this plan or as directed by engineer. Soil stockpiles shall be stabilized or protected with sediment trapping measures. Offsite waste or borrow areas shall be approved by the division of code compliance prior to the import of any borrow or export of any waste to or from the project. 13. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, offsite borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. 14. The contactor shall complete drainage facilities within 30 days following completion of rough grading at any point within the project. The installation of drainage facilities shall take precedence over all underground utilities. Outfall ditches from drainage structures shall be stabilized immediately after construction of same. This includes installation of erosion control stone or paved ditches where required. Any drainage outfalls required for a street must be completed before street grading or utility installation begins. 15. Permanent or temporary soil stabilization must be applied to all denuded areas within 7 days after final grade is reached on any portion of the site. Soil stabilization must also be applied to denuded areas which may be a final grade but will remain dormant (undisturbed) for longer than 30 days. Soil stabilization measures include vegetative establishment, mulching and the early application of gravel base material on areas to be paved. 16. No more than 300 feet of sanitary storm sewer, waterlines, or underground utility lines are to be immediately stabilized (i.e., the same day). 17. If disturbed area stabilization is to be accomplished during the months of December, January or February, stabilization shall consist of mulching in accordance with Specification 3.35. Seeding will then take place as soon as the season permits. 18. The term seeding, final vegetative cover or stabilization, on this plan shall mean the successful germination and establishment of a stable grass cover from a properly prepared seedbed containing the specified amounts of seed, lime, and fertilizing in accordance with Specification 3.32, permanent seeding. Irrigation shall be required as necessary to ensure establishment of grass cover. 19. All slopes steeper than 3:1 shall require the use of erosion control blankets such as Excelsior blankets to aid in the establishment of a vegetative cover. Installation shall be in accordance with Specification 3.35, mulching and manufacturer's instructions. No slopes shall be created steeper than 2:1. 20. Inlet protection in accordance with Specification 3.07 shall be provided for all storm drain inlets as soon as practical following construction of same. 21. Temporary liners, such as polyethylene sheets, shall be provided for all paved ditches until the permanent concrete liner is installed. 22. Paved ditches shall be required wherever erosion is evident. Particular attention shall be paid to those areas where grades exceed 3 percent. 23. All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the local program administrator. Trapped sediment and disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation. 24. As-built drawings must be provided for all detention/BMP facilities. Also upon completion, the construction of all detention/BMP facilities shall be certified by a professional engineer who inspected the structure during construction. The certification shall state that to the best of his/her judgment, knowledge, and belief, the structure was constructed in accordance with the approval plans and specifications. Structural Practices: The following erosion and sediment control structural practices will be incorporated on the project sites: Temporary Construction Entrance Culvert Inlet Protection Silt Fence Outlet Protection Construction Road Stabilization Temporary Diversion Dikes Temporary Clean Water Diversion Channels Stream Diversion Channel Temporary Sediment Basin Stormwater Conveyance Channels Rock Check Dams Temporary Seeding Temporary Sediment Trap Dust Control Permanent Seeding Stormwater Management: Stormwater drainage will be provided by stormwater conveyance channels and culverts for the project area. Details for stormwater management for the project are provided in the "Final Construction Plans". Waste Materials: All waste materials will be collected and stored in a proper receptacle in accordance with all local and State solid waste management regulations. All trash and construction debris from the site will be deposited in dumpsters. The trash will be hauled to an appropriate waste disposal site. No construction waste materials will be buried onsite. All project personnel will be instructed regarding the correct procedure for waste disposal. Hazardous Waste: All hazardous waste materials will be disposed of in the manner specified by the manufacturer and as required by local or State regulation. Site personnel will be instructed in these practices. Sanitary Waste: All sanitary waste will be collected from the portable units as required by local and State regulation. Offsite Vehicle Tracking: Stabilized construction entrances will be provided to help reduce vehicle tracking of sediments. The paved street adjacent to the site entrance will be swept as needed to remove any excess mud, dirt or rock tracked from the site. Dump trucks hauling material from the construction site will be covered with a tarpaulin. Timing of Controls and Measures: As indicated in the Stabilization Practices, permanent or temporary soil stabilization must be applied to all denuded areas within 7 days after final grade is reached on any portion of the site. Soil stabilization must also be applied to denuded areas which may not be a final grade but will remain dormant(undisturbed) for longer than 30 days. Soil stabilization measures include vegetative establishment, mulching and the early application of gravel base material on areas to be paved. Certification of Compliance with Federal, State and Local Requirements: The Stormwater Pollution Prevention Plan reflects State requirements for stormwater management and erosion and sediment control, as established in the Virginia Stormwater Management Handbook and Virginia Erosion and Sediment Control Manual. Maintenance and Inspection Procedures: Erosion and Sediment Control Inspection and Maintenance Practices: Inspections of the construction site shall be made by personnel familiar with the construction activity. This personnel is identified on page 1 of this SWPPP. Erosion and sediment control measures identified in the plan shall be observed to ensure that they are still operating correctly. The contractor shall inspect all erosion control measures periodically and after each runoff producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. Inspections shall be conducted at least once every fourteen (14) calendar days and within 48 hours of the end of a runoff producing rainfall event. These inspections shall cover disturbed areas that have not been finally stabilized, areas used for storage of materials that are exposed to precipitation, structural control measures, and locations where vehicles enter or exit the site. Where areas have been finally or temporarily stabilized or runoff is unlikely due to winter conditions (e.g. site is covered with snow, ice or frozen ground exists) such inspections shall be conducted at least one every month. Reports summarizing each inspection shall be retained onsite as part of this Stormwater Pollution Prevention Plan. Comprehensive Site Compliance Evaluation—Post Construction: Facility inspections will be conducted at least once a year by qualified personnel. The inspections will assess conditions at the facility that could impact stormwater quality and to assess the effectiveness of the BMPs that were constructed to control the quality of the stormwater discharges. Non-Stormwater Discharges: It is expected that the following non-stormwater discharges will occur from the site during the construction period. Pavement wash waters (where no spills or leaks of toxic or hazardous materials have occurred). Uncontaminated groundwater(from dewatering excavation). All non-stormwater discharges will be directed to sediment basins prior to discharge where possible. Pollution Prevention Plan Inventory for Pollution Prevention Plan: The materials or substances listed below are expected to be present onsite during construction: •Concrete -Petroleum based products •Wood •Solvents •Masonry block •Insulation •Roofing shingles •Paints •Tar •Fertilizers •Vinyl siding •Herbicides Spill Prevention Plan: Inventory of Exposed Materials: The materials or substances listed below may be present onsite and have the potential to be exposed to precipitation: -Concrete -Petroleum based products •Wood -Solvents -Masonry block •Detergents •Roofing shingles -Paints -Tar -Fertilizers -Vinyl siding -Herbicides •Insulation Material Management Practices: The following are the materials management practices that will be used to reduce the risk of spills or other accidental exposure of materials and substances to stormwater runoff. Employee Training: Employee training with regard to material management practices is conducted at the site. Training includes discussions of spill response, good housekeeping, and other material management practices. Employee training generally occurs with each new employee once hired. Good Housekeeping: The following good housekeeping practices will be followed onsite during the construction project. • All materials stored onsite will be stored in a neat, orderly manner in their appropriate containers. Materials which have the potential for contaminating runoff during storm events will be stored in their appropriate watertight containers, stored under a canopy, tarpaulin, shrink wrapped or otherwise precluded from direct exposure of precipitation. • Empty containers that may contain chemical residues shall be disposed of in accordance with State and local regulations. • Products, where possible, will be kept in their original containers with the original manufacture's label. • Chemical or petroleum products will not be mixed with one another unless recommended by the manufacturer. • Whenever possible, all of a product will be used up before disposing of the container. • Manufacturer's recommendations for proper use and disposal will be followed. • The site superintendent will inspect daily to ensure proper use and disposal of materials onsite. Hazardous Products: These practices are used to reduce the risk associated with hazardous materials. • Products will be kept in original containers unless they are not resealable. • Original specimen labels and materials safety data sheets will be kept on file; they contain important product information. • If surplus product must be disposed of, manufacturers and/or local and State recommended methods for proper disposal will be followed. Product Specific Practices: The following product specific practices will be followed onsite: Petroleum Products: • All onsite vehicles will be monitored for leaks and receive regular preventive maintenance to reduce the chance of leakage. • It is recommended that, if practicable, all refueling, repair and changing of equipment and vehicle fluids shall be conducted in a designated area. This area will be designed in a manner to reduce the potential for contamination of onsite resources. For refueling, repair and changing of equipment and vehicle fluids outside of the designated areas, care should be taken to avoid activities within+/- 50 feet of wetlands, streams, water bodies, tree preservation areas or any other environmentally sensitive areas. • Petroleum products will be stored in tightly sealed containers which are clearly labeled. • An area will be designated for the collection and storage of all chemical and storage of all chemical and petroleum based products and containers for those products. The containers shall be protected from rain events. These areas are identified on the SWPPP/PPP Reference Drawing included with the "Final Construction Plans" for each block. • Any asphalt substances used onsite will be applied according to the manufacturer's recommendations. • The project superintendent will regularly inspect the site to insure proper disposal methods of used antifreeze, oils, filters and other hazardous materials are followed. Fertilizers: Fertilizers used will be applied according to manufacturer's product standards. The contents of any partially used bags of fertilizer will be transferred to a sealable plastic container to avoid spills. Paints: All containers will be tightly sealed and stored when not required for use. Excess paint will be properly disposed of according to manufacturers' instructions or State and local regulations. Concrete Trucks: Concrete trucks will only wash out or discharge surplus concrete or drum wash water at approved locations in accordance with State and local regulations. These areas are identified on the SWPPP/PPP Reference Drawing included with the "Final Construction Plans" for each block. Spills and Leaks: This section normally contains a list of significant spills and significant leaks of toxic or hazardous pollutants that occurred at areas that are exposed to precipitation or that otherwise drain to a stormwater conveyance at the facility within the 3 year period immediately prior to the date of submission of a registration statement to be covered under this permit. However, since the project location is still proposed and not constructed, therefore not in operation at the proposed location, no significant spills and/or leaks have occurred at the site of toxic or hazardous pollutants at areas that are exposed to precipitation. Spill control Practices: In addition to the good housekeeping and material management practices discussed in the previous sections of this plan,the following practices will be followed for spill prevention and cleanup: • Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. • Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials may include but not be limited to brooms, dust pans, mops, rags, gloves, goggles, absorbent material (e.g. kitty litter, sand, sawdust) and plastic and metal trash containers. • All spills will be cleaned up immediately after discovery. • In the event of a spill of a hazardous substance, the spill will be immediately contained and the spill area will be kept well ventilated. Personnel will wear appropriate protective clothing to prevent injury form contact with a hazardous substance during cleanup operation. • Spills of toxic or hazardous material will be reported to the appropriate State or local government agency, as required by regulatory standards. Pollution Prevention 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 gathered and evaluated 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. Name: March Mountain Properties, LLC Title: Signature: Date: Grading and Stabilization Activities Log Project Name: Old Trail Subdivision SWPPP Contact: Raleigh Davis-Chris Mulligan-William Ledbetter-Scott Bradshaw Date Description of Date Grading Activity Date When Description`of Grading Grading Ceased (Indicate Stabilization Stabilization Activity Activity Temporary or Measures are Measure and Initiated Permanent) Initiated Location Subcontractor Certifications/Agreements SUBCONTRACTOR CERTIFICATION STORMWATER POLLUTION PREVENTION PLAN Project Title: Old Trail Subdivision Operator(s): As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for any work that you perform on-site. Any person or group who violates any condition of the SWPPP may be subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your review at the office trailer. Each subcontractor engaged in activities at the construction site that could impact stormwater must be identified and sign the following certification statement: I certify under the penalty of law that I have read and understand the terms and conditions of the SWPPP for the above designated project and agree to follow the BMPs and practices described in the SWPPP. This certification is hereby signed in reference to the above named project: Company: Address: Telephone Number: Type of construction service to be provided: Signature: Title: Date: SWPPP Amendment Log Project Name: Old Trail Subdivision SWPPP Contact: Raleigh Davis-Chris Mulligan-William Ledbetter Amendment Description of the Date of Amendment Prepared by No Amendment Amendment [Name(s)and Title] 1 Revise SWPPP text for August 7, 2014 William Ledbetter, LS inspections Corrective Action Log Project Name: Old Trail Subdivision SWPPP Contact: Raleigh Davis-Chris Mulligan-William Ledbetter Inspection- Inspector Description Corrective Action Date Action Date Name(s) of BMP Needed (including Taken/Responsible Deficiency planned person date/responsible person)