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HomeMy WebLinkAbout05030006.47STORMWATER POLLUTION PREVENTION PLAN INDEX A secondary barrier, such as a rock filter bed or straw /hay bale barrier, be fenced if safety is a concern. is placed beneath and beyond the edges of the bag to capture Irevent erosion at the outfall location. sediments that escape the bag. y fencing, vegetation, embankment, inlet Inspection of the flow conditions, bag condition, bag capacity, and the Alert Procedures for Spills: ADDITIONAL STORMWATER POLLUTION PREVENTION when the storage volume is educed by Replace the bag when it no longer filters sediment or passes water at a reasonable rate.ThP bag is disposed of offsite. 1 . Any personnel observing a spill will immediately instigate the following MEASURES , Plan Index provided below procedure: Atle out with the sediment. A, 11 "x17° Plat denoting lot numbers, boundaries and streets is provided separately. a.) Dialing "0" from any telephone. tation, embankment, inlet and outfall A Project Type: A maximum of 106 townhome lots. b.) Notify the appropriate emergency personnel. A trained individual shall perform a written evaluation of the project site. + Vicinity Map: Denoted on Sheet C100 2. The Emergency Coordinator will then take the following actions: VEHICLE & EQUIPMENT MAINTENANCE Name of Trained Individual: Date of Inspection: Legal Description of Project Site: See attached Secondary Plat and NOI Letter. a.) Barricade the area allowing no vehicles to enter or leave the No. AE Location of all lots and proposed site improvements: See Development Plan Sheets C101 -C102 spill zone. Description and Puryose and Offsite Development /Mass Grading Plan Sheets C103 -C106. b.) Notify the Indiana Department of Environmental Management, 3. 14 Digit Hydrologic Unit Code: 05120201090060 & 05120201120080 Office of Emergency Response by calling the appropriate Prevent or reduce the contamination of stormwater resulting from vehicle and equipment A.8 State or Federal water quality permits: None telephone number: maintenance by running a "dry and clean site'. The best option would be to perform A9 Specific points where stormwater discharge will leave the site: A portion of the storm sewers Office 317 - 233 -7745 maintenance activities at an offsite facility. If this option is not available then work should be 7. are routed through a detention pond prior to discharging into the JW Brendle Drain. The Toll Free 800- 233 -7745 performed in designated areas only, while providing cover for materials stored outside, Terminated to higher round? Property joined at ends? remainder of the storm sewers are routed through detention pond(s) that dishcharge into the Also the National Response Center at 800 -424 -8802 checking for leaks and spills, and containing and cleaning up spills immediately. existing beehive located south of 126th Street. It is then routed through a detention pond in and provide the following information: 10. Laurel Lake Subdivision and then discharges into the JW Brendle Drain. The JW Brendle Drain - Time of observation of the spill Suitable Applications Perimeter practices have adequate capacity and do not need to be cleaned out? flows south and then southwesterly. See Site Development Plan Sheets C101 -C102 and Offsite - Location of the spill Inlet protection is installed on all functional inlets? not filter fabric under rate Development /Mass Grading Plan Sheets C103 -C106 for more detail. - Identity of material spilled These procedures are suitable on all construction projects where an onsite yard area is A "C Location of all wetlands, lakes & water courses on and adjacent to site: The JW Brendle Drain - Probable source of the spill necessary for storage and maintenance of heavy equipment and vehicles. 1 The fabric, straw, mulch and/or stone is intact witnout holes or tears? is located west of the site. See Site Development Plan Sheets C101 -C102 and Offsite - Probable time of the spill Catch basin insert protection is installed where required? Development Plan /Mass Grading Plan Sheets C103 -C106 for more detail. - Volume of the spill and duration Limitations 18. Receiving Waters: JW Brendle Drain - Present and anticipated movement of the spill 20. Temporary stabilization of distributed ground has been addressed? 21. Disturbed areas that will lie dormant for 15 days are planned to be protected? Identification of potential discharges to groundwater: none. - Weather conditions Onsite vehicle and equipment maintenance should only be used where it is impractical to 25. Final grading and stabilization is progressing on completed areas? 100 Year Floodplains, Floodways and Flood Fringes: none. - Personnel at the scene send vehicles and equipment offsite for maintenance and repair. Sending vehicles /equipment _ Pre- Construction and Post Construction Peak Discharge: - Action initiated by personnel offsite should be done in conjunction with a Stabilized Construction Entrance Exit. Outdoor N / - Construction 10 year Pre P Discharge = 64.7 cfs c.) Notify the City of Carmel Fire Department Phone: 9 -1 -1 vehicle or equipment maintenance is a potentially significant source of stormwater pollution. Developer Representative contacted, name and date: Date: 10 year Post t Construction Peak Discharge = 20.8 cfs d.) Notify the City of Carmel Police Department Phone: 9 -1 -1 Activities that can contaminate stormwater include engine repair and service, changing or Adjacent Land Use: e.) Notify waste recovery contractor, maintenance personnel or other replacement of fluids, and outdoor equipment storage and parking (engine fluid leaks). _ North: Commercial - Village of WestClay Future Section 6003 contractual personnel as necessary for cleanup. South: Single Family Residential - Village of WestClay Future Section 6002 f.) Coordinate and monitor cleanup until the situation has been Implementation East: Towne Road / Single Family Residential - Village of WestClay Sections 5003, stabilized and all spills have been eliminated. 8501 & 8002 g.) Cooperate with the IDEM -OER on procedures and reports involved If maintenance must occur onsite, use designated areas, located away from drainage West: Estate Lot / Agricultural with the event. courses. Dedicated maintenance areas should be protected from stormwater runon and Locations and approximate boundaries of all disturbed areas: See Sheets C107 -C109 for Cleanup Parameters: runoff, and should be located at least 50 ft from downstream drainage facilities and _ locations. 1. The Developer / Homeowners Association shall be continually kept informed, maintain lists watercourses. A" Identification of existing vegetative cover: See Stormwater Pollution Prevention Plan - of qualified contractors and available Vac - trucks, tank pumpers and other equipment readily accessible for clean -up operations. In addition, o continually updated list of Drip pans or absorbent pads should be used during vehicle and equipment maintenance A =. Sheets C107 -C113. Soils Map including descriptions and limitations: See sheet C805 for soils map, description available absorbent materials and clean -up supplies should be kept on site. work that involves fluids, unless the maintenance work is performed over an and limitations. 2. All maintenance personnel will be made aware of techniques for prevention of spills. They impermeable surface in a dedicated maintenance area. - Locations, size and dimensions of proposed stormwater systems: See Site Development Pion will be informed of the requirements and procedures outlined in this plan. They will be kept abreast of current developments or new information on the prevention of spills Place a stockpile of spill cleanup materials where it will be readily accessible. Sheets C101 -C102 & Offsite Development /Mass Grading Plan Sheets C103 -C106 for proposed and / or necessary alterations to this plan. A_'J storm sewer system. Locations, size and dimensions of any proposed off -site construction activities associated with 3. When spills occur which could endanger human life and this becomes primary concern, the All fueling trucks and fueling areas are required to have spill kits and /or use other spill this project: See Offsite Development Plan & Mass Grading Plan Sheets 0103 -C106. discharge of the life saving protection function will be carried out by the local police protection devices. A'° Locations Soil Stockpiles: Stockpile areas shall located as for away from ponds, existing and fire departments. 4. Absorbent materials, which are used in cleaning up spilled materials, will be disposed of in Use adsorbent materials on small spills. Remove the absorbent materials promptly and . storm sewer er inlets and existing swales as possible. Stockpiles shall not located closer a manner subject to the approval of the Indiana Department of Environmental dispose of properly. than 15 feet from property line. Stockpiles shall be immediately seeded and secured with silt a Management fence. 5. Flushing of spilled material with water will not be permitted unless so authorized by the Inspect onsite vehicles and equipment daily at startup for leaks, and repair immediately. A'% Existing site topography. See Site Development Plan & Offsite Development /Mass Grading Plan Indiana Department of Environmental Management. Sheets C101 -C106 for existing site topography. li I - Monitoring and maintenance guidelines for pollution prevention measures: Keep vehicles and equipment clean; do not allow excessive build -up of oil and grease. A =' Proposed final topography. See Site Development Plan Sheets C101 -C102 and Offsite Straw Bale Dam Maintenance Requirements Development /Mass Grading Plan Sheets C103 -C106 for proposed site grading and drainage 1. Inspect straw bale dams after each storm event and promptly remove any sediment Segregate and recycle wastes, such as greases, used oil or oil filters, antifreeze, cleaning patterns. deposits to insure adequate storage volume for the next rain, taking care not to solutions, automotive batteries, hydraulic and transmission fluids. Provide secondary H 11 Description of potential pollutants sources associated with the construction activities: Silt undermine the entrenched bales. containment and covers for these materials if stored onsite. and sediment from exposed soils, leaves, mulch, vehicular sources such as leaking fuel or 2. Inspect periodically for deterioration or damage from construction activities and repair oil, brake fluid, brake dust, trash, debris, biological agents found in trash, fertilizers, immediately. Train employees and subcontractors in proper maintenance and spill cleanup procedures. herbicides, pesticides, acid rain, lime dust and concrete washout. 3. After the contributing drainage area has been stabilized, remove all straw bales and Sequencing of stormwater quality implementation relative to land disturbance activities: This sediment deposits, bring the disturbed area to grade and stabilize it. Drip pans or plastic sheeting should be placed under all vehicles and equipment placed on plan has been created in an effort to eliminate sediment from leaving the Village of WestClay Silt Fence Maintenance Requirements docks, barges, or other structures over water bodies when the vehicle or equipment is Section 6001 project and adjacent future sections of WestClay during construction protecting 1. Inspect the silt fence periodically and after each storm event. planned to be idle for more than 1 hour. the adjoining properties, JW Brendle Ditch and Elliot Creek. The majority of the existing 2. If fence fabric tears, starts to decompose or in any way becomes ineffective, replace watershed sheet drains to concentrated flow. The concentrated flow conveys runoff into the the affected portion immediately. Property dispose of used oils, fluids, lubricants, and spill cleanup materials. JW Brendle Drain and and existing beehive south of 126th street in Laurel Lakes Subdivision. 3. Remove deposited sediment when it reaches half the height of the fence at it's lowest paint or is causing the fabric to bulge. Do not place used oil in a dumpster or pour into a storm drain or watercourse. PRECONSTRUCTION ACTIVITIES: 4. Take care to avoid undermining the fence during cleanout. 1. Call the Indiana Underground Plant Protection systems, Inc. ( "Holey Moley") at 5. After the contributing drainage area has been stabilized, remove the fence and sediment Property dispose of or recycle used batteries. 1- 800 - 382 -5544 to check the location of any existing utilities. They should be deposits, bring the disturbed area to grade and stabilize it. notified two working days before construction takes place. Temporary Sediment Trap Maintenance Requirements Do not bury used tires. 2. An orange construction fence shall be constructed along the perimeter of the tree 1. Inspect temporary sediment traps after each storm event and immediately repair any preservation areas prior to any earthmoving. erosion and piping holes. Repair leaks of fluids and oil immediately. 3. A silt fence shall be installed at the edges of the project site where there is 2. Remove sediment when it has accumulated to one -half the design depth. potential for any stormwater runoff. Potential areas are identified based on existing 3. Replace spillway gravel facing when clogged. Listed below is further information if you must perform vehicle or equipment topography along the perimeter of the overall site. See plans for specific locations. 4. Inspect vegetation and re -seed if necessary. maintenance onsite. 4. Evaluate existing vegetation suitable for use as filter strips along the perimeter of 5. Check the spillway depth periodically to insure a minimum of 1.5 ft depth from the the overall site. lowest point of the settled embankment to highest point of the spillway crest and Inspection and Maintenance 5. Evaluate, mark and protect important trees and associated root zones. fill any low areas to maintain desired elevation. 6. Inlet protection shall be placed at the existing beehive located on the south side of 6. Promptly replace any displaced rip -rap, being careful that no stones in the spillway Inspect and verify that BMPs are in place prior to the commencement of associated activities. 126th street as depicted on plan. are above design grade. While activities associated with the BMP are under way, inspect weekly to verify continued BMP 7. A construction entrance shall be placed per the plan location. 7. After all disturbed areas have been stabilized, remove the structure and sediment, implementation. 8. Establish construction staging area for equipment and vehicles as for from detention smooth the site to blend with adjoining areas and stabilize it. ponds and swales as possible. Sandbag Curb Inlet Barrier Maintenance Requirement Keep ample supplies of spill cleanup materials onsite. 9. Establish onsite location for owner /operator /contractor placement of approved plans 1. Inspect frequently for damage by vehicular traffic and repair if necessary. and Rule 5 Not and Rule 5 inspection documentation. 2. Inspect after each storm event. Maintain waste fluid containers in leak proof condition. 3. Remove sediment, without flushing, when it reocnes half the height of the barrier. ESTABLISH SILT BASINS /TRAP: 4. Deposit removed sediment where it will not enter storm sewer drains. Vehicles and equipment should be inspected on each day of use. Leaks should be repaired eq P p y p ' 11. Install three sediment basins labeled "A ", "B" and "C ". See Sheet C805 for details. Block and Gravel Curb Inlet Protection Maintenance Requirements 1. After each storm event remove the sediment and replace the gravel, replace the immediate) or the problem vehicles or equipment should be removed from the project site. y P () P See Sheets C107 -C109 for locations and proposed contours. geotextile fabric if used. 12. After completion of the sediment basins and trap, commence construction of 2. Periodically remove sediment and tracked -on soil from the street, without flushing, to Inspect equipment for damaged hoses and leaky gaskets routinely. Repair or replace as the temporary diversion swales. reduce the sediment load on the curb inlet protection. needed. 3. Inspect periodically for damage and repair. Keep grates free of debris. _ _ - _ ­- - r _L r CONSTRUCTION ACTIVITIES: C C 4. After the contributing drainage area has been stabilized, remove the gravel, wire mesh, _ Once erosion and sediment control measures are in lace, begin land clearing 1. p 9 g geotextile fabric and sediment deposits and disp »e of them property. Description and Purpose followed immediately by rough grading. Do not leave large areas unprotected for Erosion Control Blanket (Surface Applied) Maintenance Requirements more than 15 days. Rule 5 requires that all disturbed areas that potentially will be idle for 15 days or more will be stabilized (seeded, mulched, etc..) immediately. 1. During vegetative establishment, inspect after each storm event for any erosion below Vehicle equipment fueling procedures and practices are designed to prevent fuel spills and 2. After completion of mass grading, final grade and seed pond banks, landscape the blanket. 2. If any area(s) shows erosion, pull back that portion of the blanket covering it, re- leaks, and reduce or eliminate contamination of stormwater. This can be accomplished by using offsite facilities, fueling in designated areas only, enclosing or covering stored fuel, berms, common areas and swales immediately after grading is completed. Seed seed the area and relay and staple the blanket. implementing spill controls, and training employees and subcontractors in proper fueling entire offsite mass graded area (future sections) immediately upon completion of 3. After vegetative establishment check the treated area periodically. procedures. grading. Temporary Gravel Construction Entrance Maintenance Requirements 3. Upon completion of mass grading, install sanitary and storm sewers. As storm 1. Inspect entrance pad and sediment disposal area weekly and after storm events or Limitations sewers are constructed, install inlet protection measures. Install riprap upon heavy use. completion of end section installation. 2. Reshape as needed for drainage and runoff control. Onsite vehicle and equipment fueling should only be used where it is impractical to send 4. Upon completion of sewer installation and inlet protection, proceed with street 3. Topdress with clean stone as needed. vehicles and equipment offsite for fueling. Sending vehicles and equipment offsite should construction. 4. Immediately remove mud and sediment tracked or washed onto streets by brushing or be done in conjunction with a Stabilized Construction Entrance/ Exit. 5. Liming of streets should be done prior to the installation of storm sewers to prevent sweeping. Flushing should only be used if the water is conveyed into a sediment the transmission of lime dust to ponds or receiving waters. trap or basin. Implementation 6. Once pavement and curbs are in place, install curb inlet sediment barriers. 5. Repair any broken road pavement immediately. 7. Once inlet protection is in place, final grade all areas. Upon completion of all grading, verify depth of pond per plan requirement, dredge as needed. 6 -- Erosion & sediment control specifications for individual building lots: See Sheet C805 for Use offsite fueling stations as much as possible. These businesses are better equipped to Construction details and specifications for erosion & sediment control on individual building handle fuel and spills properly. Performing this work offsite can also be economical by Stable construction entrance location(s) and specifications. See Stormwater Pollution Prevention lots. eliminating the need for a separate fueling area at a site. Plan Sheets C107 -C113 for location and Sheet C805 for construction entrance details and " 1 Description of pollutants and their sources associated with the proposed land use: Silt and fuel Discourage "topping -off of fuel tanks. specifications. sediment from exposed soils, leaves, mulch, vehicular sources such as leaking or oil, 3 4 Sediment control measures for sheet flow areas: See Stormwater Pollution Prevention Plan brake fluid, brake dust, grease, antifreeze, metals, rubber fragments, road grit, salts and sands, construction trash and debris, fertilizers, household items including but not limited to Absorbent spill cleanup materials and spill kits should be available in fueling areas and Sheets C107 -C113 for locations of sediment control measures and Sheet C805 for construction details and specifications. cleaning agents, chemicals, paint, miscellaneous home improvement materials, toys, clothing on fueling trucks, and should be disposed of properly after use. _ Sediment control measures for concentrated flow areas: See Stormwater Pollution Prevention and animal waste, elevated storm runoff temperatures, acid rain pesticides and pathogens. � 2 Sequence describing stormwater quality measure implementation: Drip pans or absorbent pads should be used during vehicle and equipment fueling, unless Plan Sheets C107 -C113 for locations of sediment control measures and Sheet C805 for construction details and specifications. 1. Post construction water quality BMP's are to be installed during normal construction the fueling is performed over an impermeable surface in a dedicated fueling area. _ Strom sewer inlet protection measures, locations and specifications: See Stormwater Pollution Prevention Plan Sheets C107 -C113 for locations of inlet protection measures and Sheet C805 octivies of this project defined within construction documents. A. Inspect and maintain all erosion control measures as detailed in the Stormwater Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the for construction details and specifications. Pollution Prevention Measures Maintenance Requirements beginning immediately after adsorbent materials promptly and dispose f r p p y pose o property. 3- Runoff control measures: See Stormwater Pollution Prevention Plan Sheets C107 -C113 for installation and continuing until vegetation has been sufficiently established and all Avoid mobile fueling of mobile construction equipment around the site; rather, transport locations of runoff control measures and Sheet C805 for construction details and construction activity is complete. the equipment to designated fueling areas. specifications. B. Remove all individual inlet protection and straw bale dams, silt fences, etc. only 35 Stormwater outlet protection specifications: See Stormwater Pollution Prevention Plan Sheets after seeding and sufficient vegetative growth has been established in each area to Train employees and subcontractors in proper fueling and cleanup C107 -C113 for locations of stormwater outlet control measures and Sheet C805 for a point where sediment /pollutants will not enter the lake(s) or storm sewer system. procedures. construction details and specifications. C. It is recommended that any proposed wetland areas and plantings (if any) be Dedicated fueling areas should be protected from stormwater runon and runoff, and should be 3 Grade stabilization structure locations and specifications: See Stormwater Pollution Prevention constructed /placed after final grading and sufficient vegetative growth has been located at least 50 ft away from downstream drainage facilities and watercourses. Fueling Plan Sheets C107 -C113 for locations of grade stabilization control measures and Sheet C805 established to a point where sediment /pollutants will not enter the proposed must be performed on level -grade areas. for construction details and specifications. wetlands. 3, 1� Location, dimensions, spe mwate quality specifications and construction details of each stormwater alit D. Inspection and maintenance of all common areas and infrastructure improvements Protect fueling areas with berms and dikes to prevent runon, runoff, and to contain spills. measure: See Stormwater Pollution Prevention Plan Sheets C107 -C113 for locations of various is the responsibility of the owner /developer or his designee until improvements are stormwater quality measures and Sheet C805 for construction details and specifications. accepted for maintenance by homeowners association or local agencies. Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff 311 Temporary surface stabilization methods appropriate for each season: See Stormwater E. Inspection and maintenance of individual lots is the responsibility of the home to control drips. Fueling operations should not be left unattended. Pollution Prevention Plan Sheets C107 C113 for locations of temporary surface stabilization builder or his designee until the homeowner buys and thereby accepts responsibility measures and Sheet C805 for construction details and specifications. for the individual lot. Federal, state, and local requirements should be observed for any stationary above ground 31? Permanent surface stabilization specifications: See Stormwater Pollution Prevention Plan Description of proposed post construction stormwater quality measures: Site and facility storage tanks. Sheets C107 -C113 for locations of permanent surface stabilization measures and Sheet C805 design for stormwater quality protection on this site employs a multi -level strategy consisting for construction details and specifications. of: Inspection and Maintenance P L , - Material handling and spill prevention plan: 1.- Reducing or eliminating post - project runoff. Purpose : The intention of this Spill Prevention, Control and Countermeasures (SPCC) is to 2. Controlling sources of pollutants. 3. And if needed, treating contaminated stormwater runoff before discharging it into the Vehicles and equipment should be inspected each day of use for leaks. Leaks should be repaired immediately or problem vehicles or equipment should be removed from the project establish the procedures and equipment required to prevent the discharge of oil storm sewer system or receiving waters. site. and hazardous substances in quantities that violate applicable water quality Typical stormwater quality measures for reducing, eliminating or controlling pollutants (source standards, cause a sheen upon or discoloration of the surface of navigable waters controls) include: Keep ample supplies of spill cleanup materials onsite. or adjoining shorelines, or cause sludge or emulsion to be deposited beneath the a. Dention /Retention - Detain stormwater runoff an extended period of time to allow surface of the water or adjoining shorelines. The Plan also establishes the activities pollutants that are suspended to settle out. Immediately clean up spills and properly dispose of contaminated soil and cleanup required to mitigate such discharges (i.e., countermeasures) should they occur. b. Reducing Runoff or Direct runoff from impervious areas - Reduction in volume of runoff materials. Definitions: Pollutant: means pollutant of any kind or in any form, including but not limited potentially carrying suspended solids and pollutants. to sediment, paint, cleaning agents, concrete washout, pesticides, nutrients, trash, C. Vegetated strips and /or swales - Biological and chemical processes in soils and hydraulic fluids, fuel, oil, petroleum, fuel oil, sludge, oil refuse, and oil mixed vegetation to filter out pollutants. with wastes other than dredged soil. d. Permanent erosion control seeding and plantings - Biological and chemical processes in Description Purpose Discharge: soils and vegetation to filter out pollutants. and Includes but is not limited to, any spilling, leaking, pumping, pouring, emitting, e. Outlet protection & velocity dissipation devices - Prevent surface erosion resulting in decreased suspended solids and preserving established downstream vegetative cover. Solid waste management procedures and practices are designed to prevent or reduce the emptying, or dumping. f. Rock slope protection - Prevent surface erosion resulting in decreased suspended solids. discharge of pollutants to stormwater from solid or construction waste by providing Navigable Waters: Means all waters of the United States that are connected with a navigable stream, g. Mulching - Prevent surface erosion resulting in decreased suspended solids. designated waste collection areas and containers, arranging for regular disposal, and training employees and subcontractors. lake, or sea. [Note: This definition is usually interpreted to mean any It is intent of this plan that the implementation of the above described storm water wastewater (even normally dry wash or storm sewer) that eventually drains into a qity measures be executed in accordance with the enclosed pions and details in order quality Suitable Applications navigable stream]. to meet the requirements of Rule 5 storm water quality. Plan Review and Amendements: C a Location, dimensions, specifications and construction details of stormwater quality measures: This BMP is suitable for construction sites where the following wastes are generated or This Plan shall be reviewed and /or amended, if necessary, whenever there is a .See Stormwater Pollution Prevention Plan Sheets C107 -C113 for locations of permanent stored: change in the design of the site, construction, operation, or maintenance which stormwater quality measures and Sheet C805 constructio,i details and specifications. materially affects the site's potential for the discharge of regulated material. r 7 Description of maintenance guidelines for proposed water quality measures: See attached Solid waste generated from trees and shrubs removed during land clearing, demolition of Prediction of Potential Spills: BMP Operations and Maintenance Manual. existing structures (rubble), and building construction 1. Nearest Navigable Water: JW Brendle Drain 2. Drainage System: All storm drainage leaves the development site by swales and Packaging materials including wood, paper, and plastic closed storm systems which eventually discharges into the JW Brendle Drain which flows southwesterly. Scrap or surplus building materials including scrap metals, rubber, plastic, lass feces and P rp 9 9 P P 9 p 3. Possible Spill Sources (During and post construction): Vehicular sources such as masonry products leaking fuel or oil, brake fluid, grease, antifreeze; construction trash and debris, biological agents found in trash and debris, fertilizers, household items including Domestic wastes including food containers such as beverage cons, coffee cups, paper but not limited to cleaning agents, chemicals, paint, herbicides and pesticides. bags, plastic wrappers, and cigarettes 4. Groundwater Contamination: The facility maintains NO above ground or under ground storage tanks at this site. Construction wastes including brick, mortar, timber, steel and metal scraps, pipe and Therefore, it is felt that there is little or no possibility of post construction electrical cuttings, nonhazardous equipment parts, styrofoom and other materials send groundwater contamination. The facility does have city sanitary sewer and city water. transport and package construction materials Implementation The following steps will help keep a clean site and reduce stormwater pollution: Select designated waste collection areas onsite. Inform trash - hauling contractors that you will accept only watertight dumpsters for onsite use. Inspect dumpsters for leaks and repair any dumpster that is not watertight. Provide an adequate number of containers with lids or covers that can be placed over the container to keep rain out or to prevent loss of wastes when it is windy. Plan for additional containers and more frequent pickup during the demolition phase of construction. Collect site trash daily, especially during rainy and windy conditions. Remove this solid waste promptly since erosion and sediment control devices tend to collect litter. Make sure that toxic liquid wastes (used oils, solvents, and paints) and chemicals (acids, pesticides, additives, curing compounds) are not disposed of in dumpsters designated for construction debris. Do not hose out dumpsters on the construction site. Leave dumpster cleaning to the trash hauling contractor. Arrange for regular waste collection before containers overflow Clean up immediately if a container does spill. Make sure that construction waste is collected, removed, and disposed of only at authorized disposal areas. Collection. Storage and Disposal Littering on the project site should be prohibited. To prevent clogging of the storm drainage system, litter and debris removal from drainage grates, trash racks, and ditch lines should be a priority. Trash receptacles should be provided in the contractor's yard, field trailer areas, and at locations where workers congregate for lunch and break periods. Litter from work areas within the construction limits of the project site should be collected and laced in watertight dumpsters at least weekly, regardless of whether the litter was generated by he contractor, the public, or others. Collected litter and debris should not be placed in or next to drain inlets, stormwater drainage systems, or watercourses. Dumpsters of sufficient size and number should be provided to contain the solid waste generated by the project. Full dumpsters should be removed from the project site and the contents should be disposed of by the trash hauling contractor. Construction debris and waste should be removed from the site biweekly or more frequently as needed. Construction material visible to the public should be stored or stacked in an orderly manner. Stormwater runon should be prevented from contacting stored solid waste through the use of berms, dikes, or other temporary diversion structures or through the use of measures to elevate waste from site surfaces. Solid waste storage areas should be located at least 50 ft from drainage facilities and watercourses and should not be located in areas prone to flooding or ponding. o-,_ ,1, -. r'I.. Inspect and verify that activity -based BMPs are in place prior to the commencement of associated activities. While activities associated with the BMP are under way, inspect weekly to verify continued BMP implementation. Inspect BMPs subject to n n - stormwater d ;.s.. o u., i a �a. ! y while non-stormwater er discharges occur Inspect construction waste area regularly. Arrange for regular waste collection. R'ASFC lj The following steps will help reduce stormwater pollution from concrete wastes: Discuss the concrete management techniques described in this BMP (such as handling of concrete waste and washout) with the ready -mix concrete supplier before any deliveries are made. Incorporate requirements for concrol, waste management into material supplier and subcontractor agreements. Store dry and wet materials under cover, away from drainage areas. Avoid mixing excess amounts of fresh concrete. Perform washout of concrete trucks ,,ffsite or in designated areas only. Do not wash out concrete trucks into storm drains, open ditches, streets, or streams. Do not allow excess concrete to be dumped onsite, except in designated areas. For onsite washout: - Locate washout area at least 50 feet from storm drains, open ditches, or water bodies. - Do not allow runoff from this area by constructing a temporary pit or bermed area large enough for liquid and solid waste. - Wash out wastes into the temporary pit where the concrete can set, be broken up, and then disposed properly. - Avoid creating runoff by draining water to a bermed or level area when washing concrete to remove fine particles and expose the aggregate. - Do not wash sweepings from exposed aggregate concrete into the street or storm drain. Collect and return sweepings to aggregate base stockpile or dispose in the trash. )E,'VA EEJIG AND PJt,I1I1\,1G 01E?A IONS Description and Purpose Dewatering operations are practices that manage the discharge of pollutants when non - stormwater and accumulated precipitation must be removed from a work location so that construction work may be accomplished. Suitable Applications These practices are implemented for discharges of nonstormwater from construction sites. Non - stormwaters include, but are not limited to, groundwater, water from cofferdams, water diversions, and waters used during construction activities that must be removed from a work area. Practices identified in this section are also appropriate for implementation when managing the removal of accumulated precipitation(stormwater) from depressed areas at a construction site. Limitations Site conditions will dictate design and use of dewatering operations. The controls discussed in this best management practice (BMP) address sediment only. The controls detailed in this BMP only allow for minimal settling time for sediment particles. Use only when site conditions restrict the use of the other control methods. Dewatering operations will require, and must comply with, applicable local permits. Implementation Dewatering discharges must not cause erosion at the discharge point. A variety of methods can be used to treat water during dewatering operations. Several devices are presented below and provide options to achieve sediment removal. The size of particles present in the sediment and Permit or receiving water limitations on sediment are key considerations for selecting sediment treatment option(s); in some cases, the use of multiple devices may be appropriate. Sediment Basin C �' . A sediment basin is a temporary basin with a controlled release structure that is formed by excavation or construction of an embankment to detain sediment -laden runoff and allow sediment to settle out before discharging. Sediment basins are generally larger than Sediment Traps. Effective for the removal of gravel, sand, silt, some metals that settle out with the sediment, and trash. Excavation and construction of r Temporary sediment basins must Outlet protection is required to I r =.. �, c Maintenance is required for safe{ nd outfall structures, as well as Removal of sediment is required one -half. Sediment Trap A sediment trap is a temporary construction of an earthen embc drainage area to detain sedimen settle out before discharging. SE Sediment Basins. - � -,.,, . Effective for the removal of larg gravel) and some metals that s �ir.i, "7:C ,I Excavation and construction of I Trap inlets should be located to trap outlet. Use rock or vegetation to prote ,.., _ , 1- Maintenance is required for vegE structures, as well as other fea Removal of sediment is required one - third. Gravity Bag Filter A gravity bag litter, also referred to as a dewatering bag, is a square or rectangular bag made of non -woven geotextile fabric that collects sand, silt, and fines. Effective for the removal of sediments (gravel, sand, and silt). Some metals are removed with the sediment. Water is pumped into one side of the bag and seeps through the plated facilities is required. bottom and sides of the bag. A secondary barrier, such as a rock filter bed or straw /hay bale barrier, be fenced if safety is a concern. is placed beneath and beyond the edges of the bag to capture Irevent erosion at the outfall location. sediments that escape the bag. y fencing, vegetation, embankment, inlet Inspection of the flow conditions, bag condition, bag capacity, and the secondary barrier is required. other features. when the storage volume is educed by Replace the bag when it no longer filters sediment or passes water at a reasonable rate.ThP bag is disposed of offsite. basin formed by excavation and /or nkment across a waterway or low : -laden runoff and allow sediment to diment traps are generally smaller than and medium sized particles (sand and Atle out with the sediment. elated facilities is required. mcximize the travel distance to the A the trap outlets against erosion. tation, embankment, inlet and outfall ures. when the storage volume is reduced by EVALUATION FOR CONSTRUCTION PROJECTS A trained individual shall perform a written evaluation of the project site. a. By the end of the next business day following each rainfall that exceeds 0.5" b. A minimum of one (1) time per week Project Name: co Name of Trained Individual: Date of Inspection: Is this Evaluation followin a rainfall Yes No If yes, date the rain stopped: Inches Z No. PROBLEM or CONCERN YES NO N/A 1. Is the site information posted at the entrance? 2. Are all necessary permits attained and special provisions being implemented? 3. Is a construction entrance installed? Is it effective? Is it enough p I--­i 4. Public and private streets are clean? w � 5. 1 Are appropriate practices installed where stormwater leaves the site? d 6. Silt fence is entrenched into the round? a-) 7. Silt fence is upright? Fabric and stakes meet specifications? Fabric is not to torn? U U Terminated to higher round? Property joined at ends? 8. Sediment basins and traps are installed according to the Ian? The pipe or rock s illwa is functional? 9. The earthwork for erosion and sediment control practices is properly graded, se eded and/or mulched. 10. Diversions swales and/or waterbars are installed to plan and protected? I . 11. Perimeter practices have adequate capacity and do not need to be cleaned out? = 12. Inlet protection is installed on all functional inlets? not filter fabric under rate 13. Inlet protection is installed so water does not flow under it? 14. The frame, cross-bracing and/or stakes are adequate and meetspecifications? 15. 1 The fabric, straw, mulch and/or stone is intact witnout holes or tears? 16. Catch basin insert protection is installed where required? 17. Sediment has been removed from the practice? 18. Swales and ditches have been stabilized or protected? 19. Stormwater outlets are adequately stabilized? 20. Temporary stabilization of distributed ground has been addressed? 21. Disturbed areas that will lie dormant for 15 days are planned to be protected? 22. All protected dormant areas meet a minimum 70% coverage 23. Growing vegetation has sufficient water and /or nutrients to grow? 24. Permanent stabilization of disturbed ground is progressing through the project? 25. Final grading and stabilization is progressing on completed areas? 26. The soil has been properly prepared for seeding? 27. Hard or soft armoring is installed where natural vegetation will erode? 28. Water pumping operations have a protected outlet and discharge water is clear? 29. A designated washout is established for concrete trucks? 30. No sediment leaving washout area? 31, A dumpster is onsite for trash disposal? 32. Fuel tanks and other toxic materials are safely stared and protected? 33. Smaller construction sites not required to file a separate NOI are complying with the overall plan? 34. ALL PROBLEMS OR CONCERNS NEED TO BE ADDRESSED WITH A CORRECTIVE ACTION Identify the problem by number and /or provide additional explanation as needed. Developer Representative contacted, name and date: Date: Contractor Representative contacted, name and date: Date: Report Submitted by: Date: &i z 0 > I. \�N \\ \ \ \ \ 11111 I I I I I I I I I / I I / / / /Z/// �/ ;Q'1�G \s ERFo '�� No. 1 10000075 ?� STATE OF � fie, �NDIPA � /SS��N L /// // i, l a f n I A n u I u 3 i i L. DATE: 3/1/05 THIS DRAWING AND THE IDEAS, DESIGNS AND CONCEPTS CONTAINED HEREIN ARE THE EXCLUSIVE INTELLECTUAL PROPERTY OF THE SCHNEIDER CORPORATION, AND ARE NOT TO BE USED OR REPRODUCED, IN WHOLE OR IN PART, WITHOUT THE WRITTEN CONSENT OF THE SCHNEIDER CORPORATION. ©COPYRIGHTED BY THE SCHNEIDER CORP.(2005)1. f4lb Schneider THE SCHNEIDER CORPORATION 12821 E. New Market Street Suite 100 Carmel, IN 46032 Telephone: 317.569.8112 Fax: 317.826.6410 www.schneidercorp.com Architecture Civil Engineering Environmental Engineering Geotechnical Services GIS * LIS Home Builder Services Interior Design Land Surveying Landscape Architecture Transportation Engineering DATE: PROJECT 3/1/05 1238.6001 DRAWN BY: ,� Z JLF Q STORMWATER POLLUTION r__-4 r--i N: \1238 \6001 \DWGS \C804- 805.DWG U (C O4 -U) O W W co 2R�r Z O Q Z Q z C_ - O p I--­i ,� � W Q w � d x a-) U U U U t)x C �+ r4 V) W I . = I I r-1 = DATE: PROJECT 3/1/05 1238.6001 DRAWN BY: CHECKED BY: JLF SHEET TITLE: STORMWATER POLLUTION PREVENTION DETAILS DRAWING FILES: N: \1238 \6001 \DWGS \C804- 805.DWG SHEET NO.: (C O4