HomeMy WebLinkAboutC030.4 - SWPPPDRAWING NO.C3.5N:\2018\18414\Drawings\ACAD\LD\S04.1\Sheet Drawings\CD\18414_C3.0 EROSION CONTROL PLAN.dwg6/13/2019DESCRIPTIONDATENO.
R E V I S I O N S
PROJECT NO.:
PROJECT MANAGER:
DRAWN BY:
DESIGNED BY:
ORIGINAL ISSUE DATE:18414 DECEMBER 14, 2018
JOR
PLD
JOR
CARMEL INDIANA
STORMWATER POLLUTION
PREVENTION PLAN
ESTATES AT TOWNE MEADOW
DESCRIPTIONDATENO.
619 N Pennsylvania St
Indianapolis, IN 46204
317.423.0690 phone
www.v3co.com
Temporary Seeding SpecificationsSeeding FrequencySeed rough graded areas daily while soil is still loose and moist.Density of vegetative cover eighty percent or greater over the soil surface.Materials·Consider the use of phosphorus free application where soil tests indicateadequate phosphorous levels in the soil profile.·Seed - select appropriate plant species seed or seed mixtures on the basis ofquick germination, growth, and time of year to be seeded (see Landscape Plan and Erosion Control Plan).·Mulch -·Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth).·Anchored to prevent removal by wind or water or covered with manufactured erosion control blankets.Applicationseedbed preparation1. Test soil to determine ph and nutrient levels (optional).2. Apply soil amendments as recommended by the soil test (optional).3. Work the soil amendments into the upper two to four inches of the soil with a disk or rake operated across the slope.Seeding1. Select a seed species or an appropriate seed mixture and application rate from Landscape Plan and Erosion Control Plan.2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant orcover seed to the depth shown in Landscape Plan.Notes:1. If drilling or broadcasting the seed, ensure good seed-to-soil contactby firming the seedbed with a roller or cultipacker after completingseeding operations.2. Daily seeding when the soil is moist is usually most effective.3. If seeding is done with a hydroseeder, fertilizer and mulch can beapplied with the seed in a slurry mixture.3. Apply mulch and anchor it in place.Maintenance·Inspect within 24 hours of each rain event and at least once every sevencalendar days.·Check for erosion or movement of mulch and repair immediately. monitor for erosion damage and adequate cover (80 percent density); reseed,and apply mulch where necessary.·If nitrogen deficiency is apparent, top-dress fall seeded wheat or rye seedingwith 50 pounds per acre of nitrogen in february or march.1 Perennial species may be used as a temporary cover, especially if the area to be seeded will remain idle for more than one year .2 Seeding done outside the optimum seeding dates increases the chances of seeding failure. Dates may be extended or shortenedbased on the location of the project site within the state.Notes:Mulch alone is an acceptable temporary cover and may be used in lieu of temporary seeding, provided that it is appropriately anchored.A high potential for fertilizer, seed, and mulch to wash exists on steep banks, cuts, and in channels and areas of concentrated flow.SWPPP for Construction Sites1. Hydrologic Unit Area Code: 051202010900602.Receiving Waters: Springmill Run Regulated Drain3.Peak Discharges:3.1.10-Year = 20.89 cfs3.2.100-Year = 88.77 cfs4.Locations of Discharge: Southern boundary of the site5.Locations of Direct Discharge to Groundwater: Limited infiltration. All surface flow goes to Springmill Run RegulatedDrain.5.1.Soils Map: See Cover Sheet5.2.Soil Legend: See Cover Sheet5.3.Soil Limitations Description: This site design takes into account the existing soil limitations with respect to drainage,bearing capacity, etc. No issues are apparent at this time. Although limited infiltration is likely, the design does notaccount for any infiltration rate based on typical soil classification properties.6.Description of Potential Pollutant Sources Associated With Construction Activities: Potential pollution during constructionincludes: Trash, fossil fuels, oil, grease, and sediment. Exposure of these pollutants to stormwater runoff should beminimized by performing activities such as equipment storage, refueling, and maintenance placement in designatedareas.7.Temporary and Permanent Stormwater Quality Measures:7.1.Location: Refer to Sheet 6.0 through 6.7 for location of permanent stormwater quality BMPs. Refer to ErosionControl Plan for location of temporary measures.7.2.Dimensions: Refer to Sheet 6.0 and 6.7 for dimensions of permanent stormwater quality BMPs. Refer to ErosionControl Plan for dimension of temporary measures7.3.Detailed Specifications: Refer to this sheet for specifications of temporary measures.7.4.Construction Details: Refer to Erosion Control Details for details of temporary measures. Refer to ConstructionDetails for details of permanent stormwater quality BMPs.7.5.Monitoring and Maintenance Guidelines: Refer to the O&M Manual for this information.8.General Construction Sequence: This plan has been created in an effort to eliminate sediment from leaving the projectduring construction, protecting adjoining properties. See Erosion Control Plan for sequence.9.Location of Proposed Soil Stockpiles, Borrow, and/or Disposal Areas: Refer to Erosion Control Plan. Disposal shall be atan approved landfill area only.10.Temporary and Permanent Surface Stabilization Methods: See Erosion Control Plan.11.Erosion and Sediment Control Specifications for Individual Building Lots: N/A12.Material Handling, Storage, and Spill Prevention Plan:Purpose:The intention of this spill prevention, control and countermeasures (SPCC) plan is to establish the procedures andequipment required to prevent the discharge of oil and hazardous substances in quantities that violate applicable waterquality standards, cause a sheen upon or discoloration of the surface of navigable waters or adjoining shorelines, orcause sludge or emulsion to be deposited beneath the surface of the water or adjoining shorelines. The plan alsoestablishes the activities required to mitigate such discharges (i.e., countermeasures) should they occur.Definitions:Pollutant: Means pollutant of any kind or in any form, including but not limited to sediment, paint, cleaning agents,concrete washout, pesticides, nutrients, trash, hydraulic fluids, fuel, oil, petroleum, fuel oil, sludge, oil refuse,and oil mixed with wastes other than dredged soil.Discharge: Includes but not limited to, any spilling, leaking, pumping, pouring, emitting, emptying, or dumping.Navigable Waters: Means all waters of the United States that are connected with a navigable stream, lake, or sea.[Note: This definition is usually interpreted to mean any wastewater (even normally dry wash or storm sewer)that eventually drains into a navigable stream.]Plan Review and Administration: This plan shall be reviewed and/or amended, if necessary, whenever there is achange in the design of the site, construction, operation, or maintenance which materially affects the site'spotential for the discharge of regulated material.Prediction of Potential Spills:1.1.Nearest Receiving Water: Springmill Regulated Drain1.2.Drainage System: The storm drainage flows through a series of BMPs to a single discharge point to the south. .1.3.Groundwater Contamination: Potential in BMPsAlert Procedures for Spills:1.1.Any personnel observing a spill will immediately instigate the following procedure:1.2.Notify the appropriate emergency personnel.The emergency coordinator will then take the following actions:1.1.Barricade the area allowing no vehicles to enter or leave the spill zone.1.2.Notify the Indiana Department of Environmental Management Office of Emergency Response by calling theappropriate telephone number:Office317-233-7745Toll free800-233-77451.3.Notify the City of Carmel Fire Department Phone: 317-571-26251.4.Notify the City of Carmel Utilities Department Phone: 317-571-24421.5.Notify City of Carmel Engineer's Office Phone: 317-571-23141.6.Notify Waste Recovery Contractor, maintenance personnel or other contractual personnel as necessary forcleanup.1.7.Coordinate and monitor cleanup until the situation has been stabilized and all spills have been eliminated.1.8.Cooperate with the IDEM-OER on procedures and reports involved with the event.Cleanup Parameters:1.The developer shall be continually kept informed, maintain lists of qualified contractors and available vac-trucks, tankpumpers, and other equipment readily accessible for clean-up operations. In addition, a continually updated list ofavailable absorbent materials and clean-up supplies shall be kept on site.2.All maintenance personnel will be made aware of techniques for prevention of spills. They will be informed of therequirements and procedures outlined in this plan. They will be kept abreast of current developments or new informationon the prevention of spills and/or necessary alterations to this plan.3.When spills occur which could endanger human life and this becomes primary concern, the discharge of the life savingprotection function will be carried out by the local police and fire departments.4.Absorbent materials which are used in cleaning up spilled materials will be disposed of in a manner subject to theapproval of the Indiana Department of Environmental Management.5.Flushing of spilled material with water will not be permitted unless so authorized by the Indiana Department ofEnvironmental Management.SWPPP for Post-Construction:1.Description of Potential Pollutant Sources Associated With the Land Use:1.1.Source: Passenger vehicles, delivery vehicles, and trucks1.1.1.Pollutants: Oil, gasoline, diesel fuel, any hydrocarbon associated with vehicular fuels and lubricants, grease, antifreeze,windshield cleaner solution, brake fluid, brake dust, rubber, glass, metal and plastic fragments, grit, road de-icingmaterials.1.2.Source: Residence1.2.1.Pollutants: Cleaning solutions or solvents, leaks from HVAC equipment, grit from roof drainage, aggregate or rubberfragments from roofing system1.3.Source: Lawn and Landscape AreasPollutants: Fertilizers, herbicides, organic material (leaves, mulch, grass clippings) and pesticides.2.Post-Construction Stormwater Quality Measures: Includes three dry detention basins with wetland plantings, low-flowswales within the basins which treat runoff from the site for TSS removal, and sumps with SNOUTS in select storm sewerstructures closest to the right-of-way. The northwest basin has native sedge seeding within its low flow swale, as well as nativewet-mesic seeding along its basin. The southwest basin has native sedge seeding within its low flow swale, as well as nativewet-mesic seeding, and native mesic prarie seeding along its basin. The southeast basin has native sedge seeding within its lowflow swale, as well as native wet-mesic seeding, and native mesic prarie seeding along its basin. Storm sewer structures 603, 606,611, and 616 all have 50" sumps as well as size 24R SNOUTS. Storm sewer structures 621, 626, 629, 633, 636, 639, and 643 allhave 37.5" sumps with size 18R SNOUTS.2.1.Location: See Erosion Control Plan2.2.Dimensions: See Erosion Control Plan & Construction Details2.3.Sizing Calculations: See Drainage Summary2.4.Detailed Specifications: See this sheet & C9.02.5.Construction Details: See Erosion Control Plan, This Sheet, & Construction DetailsSequence Describing Stormwater Quality Measure Implementation: All BMPs shall be mass graded and stabilized during othergrading and stabilizing activities on the site. Blanket shall be installed in the concentrated flow areas as soon as possible aftergrading. Immediately upon final stabilization of the site, the river cobble and plantings shall be installed in accordance with theErosion Control Plan. Any accumulated sediment during construction activities shall be removed.Stormwater Quality Measures Implemented: Within the three basins there are low-flow swales that treat the runoff to and from thesite for TSS removal. In addition, there are sumps and SNOUTs place in the last structure in the right-of-way before discharginginto a basin.Monitoring and Maintenance Guidelines for Each Proposed Pollution Prevention Measure: To be completed by the contractor or adesignated entity, who is trained and experienced in the principles of storm water quality, including erosion and sediment control asmay be demonstrated by state registration, professional certification, experience, or completion of coursework that enable theindividual to make judgments regarding storm water control or treatment and monitoring. Inspect and verify that activity-basedBMPs are in place prior to the commencement of associated activities. All stormwater quality measures must be monitored on aweekly basis and after each ½ inch rainfall event. Sample Inspection Sheet in O&M manual, inspection records shall be completed,maintained onsite, and made available to agencies if requested.All sediment and erosion control devices shall be kept in good condition. Repairs must be made within 24 hours of the inspectionreport.Inlet Protection Maintenance Requirements1.Inspect inlet protection after each storm event and promptly remove any sediment deposits to insure adequate storagevolume for the next rain.2.Inspect periodically for deterioration or damage from construction activities and replace immediately.3.After all contributing drainage areas have been stabilized, remove inlet protection and sediment deposits.Silt Fence Maintenance Requirements1.Inspect the silt fence periodically and after each storm event.2.If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately.3.Remove deposited sediment when it reaches half the height of the fence at its lowest point or is causing the fabric to bulge.4.Take care to avoid undermining the fence during cleanout.5.After the contributing drainage areas has been stabilized, remove the fence and sediment deposits, bring the disturbedarea to grade and stabilized it.Temporary Seeding1.Inspect weekly and after each storm event to see that vegetative stands are adequately established; reseed if necessary.2.Check for erosion damage after storm events and repair; reseed and mulch if necessary.3.Topdress fall seeded wheat or rye seedings with 50 lbs./acre of nitrogen in February or march if nitrogen deficiency isapparent.Permanent Seeding1.Inspect weekly and after each storm event until vegetation is fully established.2.Plan to add fertilizer the following growing season according to soil test recommendations.3.Repair damaged, bare, or sparse areas by filling any gullies, re-fertilizing, re-fertilizing, or reseeding, and mulching.4.If vegetation fails to grow, consider soil testing to determine acidity or nutrient deficiency problems.Description of Maintenance Guidelines for Proposed Post Construction Water Quality Measures:See attached BMP Operation and Maintenance Manual. Maintenance of all post construction stormwater pollution preventionmeasures will be the responsibility of the Contractor. The maintenance guidelines consist mainly of good housekeeping measures.Any grassed or vegetated areas that experience erosion from rainfall events should be repaired and revegetated as soon aspossible. Trash or litter should be picked up and properly disposed of to prevent it from getting into downstream waterways.ADDITIONAL STORMWATER POLLUTION PREVENTION MEASURESVEHICLE AND EQUIPMENT MAINTENANCEDescription and PurposePrevent or reduce the contamination of stormwater resulting from vehicle and equipment maintenance by running a 'dry andclean site'. The best option would be to perform maintenance activities at an offsite facility. If this option is not available thenwork shall be performed in designated areas only while providing cover for materials stored outside, checking for leaks andspills, and containing and cleaning up spills immediately.LimitationsOnsite vehicle and equipment maintenance shall only be used where it is impractical to send vehicles and equipment offsitefor maintenance and repair. Outdoor vehicle or equipment maintenance is a potentially significant source of stormwaterpollution. Activities that can contaminate stormwater include engine repair and service, changing or replacement of fluids,and outdoor equipment storage and parking (engine fluid leaks).ImplementationIf maintenance must occur onsite, use designated areas located away from drainage courses.Maintenance areas shall be protected from stormwater runoff and runoff, and shall be located at least 50 ft from downstreamdrainage facilities and watercourses.Place a stockpile of spill cleanup materials where it will be readily accessible.All fueling trucks and fueling areas are required to have spill kits and/or use other spill protection devices.Use absorbent materials on small spills. Remove the absorbent materials promptly and dispose of properly.Inspect onsite vehicles and equipment daily at startup for leaks, and repair immediately. Keep vehicles and equipment clean;do not allow excessive build-up of oil and grease.VEHICLE AND EQUIPMENT FUELINGDescription and PurposeVehicle equipment fueling procedures and practices are designed to prevent fuel spills and leaks, and reduce or eliminatecontamination of stormwater. This can be accomplished by using offsite facilities, fueling in designated areas only, enclosingor covering stored fuel, implementing spill controls, and training employees and subcontractors in proper fueling procedures.LimitationsOnsite vehicle and equipment fueling shall only be used where it is impractical to send vehicles and equipment offsite forfueling. Sending vehicles and equipment offsite shall be done in conjunction with a stabilized construction entrance/exit.ImplementationDiscourage "topping-off" of fuel tanks.Absorbent spill cleanup materials and spill kits shall be available in fueling areas and on fueling trucks, and shall be disposedof properly after use.Drip pans of absorbent pads shall be used during vehicle and equipment fueling, unless the fueling is performed over animpermeable surface in a dedicated fueling area.Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the absorbent materials promptly anddispose of properly.Avoid mobile fueling construction equipment around the site: rather, transport the equipment to designated fueling areas.Train employees and subcontractors in proper fueling and cleanup procedures.Fueling areas shall be protected from stormwater runoff and runoff, and shall be located at least 50 ft away from downstreamdrainage facilities and watercourses. Fueling must be performed on level-grade areas.Protect fueling areas with berms and dikes to prevent runon, runoff, and to contain spills.Nozzles used in vehicle and equipment fueling shall be equipped with an automatic shutoff to control drips. Fuelingoperations shall not be left unattended.Federal, state, and local requirements shall be observed for any stationary shave ground storage tanks.Inspection and MaintenanceVehicles and equipment shall be inspected each day of use for leaks. Leaks shall be repaired immediately or problemvehicles or equipment shall be removed from the project site.Keep ample supplies of spill cleanup materials onsite.Immediately clean up spills and properly dispose of contaminated soil and cleanup materials.SOLID WASTE MANAGEMENT Description and PurposeSolid waste management procedures and practices are designed to prevent or reduce the discharge of pollutants tostormwater from solid or construction waste by providing designated waste collection areas and containers, arranging forregular disposal, and training employees and subcontractors.Suitable ApplicationsThis BMP is suitable for construction sites where the following wastes are generated or stored:Solid waste generated from trees and shrubs removed during land clearing, demolition of existing structures (rubble), andbuilding construction.Packaging materials including wood, paper, and plastic.Scrap or surplus building materials including scrap metals, rubber, plastic, glass pieces and masonry products.Domestic wastes including food containers such as beverage cans, coffee cups, paper bogs, plastic wrappers, and cigarettes.Construction wastes including brick, mortar, timber, steel and metal scraps, pipe and electrical cuttings, non-hazardousequipment parts, Styrofoam, and other materials and transport and package construction materials.ImplementationThe 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 toprevent 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, curingcompounds) 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 DisposalLittering on the project site shall be prohibited.To prevent clogging of the storm drainage system, litter and debris removal from drainage grates, trash racks, and ditch linesshall be a priority.Trash receptacles shall be provided in the contractor's yard, field trailer areas, and at locations where workers congregate forlunch and break periods.Litter from work areas within the construction limits of the project site shall be collected and placed I watertight dumpsters atleast weekly regardless of whether the litter was generated by the contractor, the public, or others. Collected litter and debrisshall not be placed in or next to drain inlets, stormwater drainage systems, or watercourses.Dumpsters of sufficient size and number shall be provided to contain the solid waste generated by the project.Full dumpsters shall be removed from the project site and the contents shall be disposed of by the trash-hauling contractor.Construction debris and waste shall be removed from the site biweekly or more frequently as needed.Construction material visible to the public shall be stored or stacked in an orderly manner.Stormwater runoff shall be prevented from contacting stored solid waste through the use of berms, dikes, or other temporarydiversion structures or through the use of measures to elevate waste from site surfaces.Solid waste storage areas shall by located at least 50 ft from drainage facilities and watercourses and shall not be located inareas prone to flooding or ponding.Inspection and MaintenanceTo be completed by the contractor or a designated entity.Inspect and verify that activity-based BMPs are in place prior to the commencement of associated activities. All stormwaterquality measures must be monitored on a weekly basis and after each ½ inch rainfall event.All sediment and erosion control devices shall be kept in good condition. Repairs must be made within 24 hours of theinspection report. The temporary construction entrance will be incorporated into driveway construction. The silt fence will beremoved after temporary cover is established.Inspect BMPs subject to non-stormwater discharge daily while non-stormwater discharges occur.Inspect construction waste area regularly.Arrange for regular waste collection.Silt FenceLocation·Installed parallel to the slope contour.·Minimum of 10 feet beyond the toe of the slope to provide a broad, shallow sediment pool.·Accessible for maintenance (removal of sediment and silt fence repair).Installation1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sedimentstorage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at ahigher elevation than the top of the fence at its lowest point (see Exhibit 1).2. Excavate an eight-inch deep by four-inch wide trench along the entire length of the fence line (See 04/C4.1). Installation by plowing is alsoacceptable.3. Install the silt fence with the filter fabric located on the up-slope side of the excavated trench and the support posts on the down-slope side of thetrench.4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of12 inches of the filter fabric should extend into the trench. (If it is necessary to join the ends of two fences, use the wrap joint method shown in Exhibit 3.)5. Lay the lower four inches of filter fabric on the bottom of the trench and extend it toward the up-slope side of the trench.6. Backfill the trench with soil material and compact it in place.Maintenance·Inspect within 24 hours of a rain event and at least once every seven calendar days.·If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Note: All repairs shouldmeet specifications as outlined within this measure.·Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one-half the height of the fence at its lowest point.When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, andstabilize.Temporary Construction EntranceDimensions·Width - 20 feet minimum or full width of entrance/exit roadway, whichever is greater.·Length - 150 feet minimum (length can be shorter for small sites).·Thickness - twelve inches minimum.Washing Facility (optional)·Level area with three inch, or larger, washed aggregate or install a commercial wash rack.·Divert waste water to a sediment trap or basin.Installation1. Remove all vegetation and other objectionable material from the foundation area.2. Grade foundation and crown for positive drainage. If the slope of the construction entrance is toward a public road and exceedstwo percent, construct an eight inch high diversion ridge with a ratio of 3-to-1 side slopes across the foundation area about 15 feetfrom the entrance to divert runoff away from the road.3. Install a culvert pipe under the pad if needed to maintain proper public road drainage.4. If wet conditions are anticipated, place geotextile fabric on the graded foundation to improve stability.5. Place aggregate (INDOT CA No. 2) to the dimensions and grade shown in the construction plans, leaving the surface smoothand sloped for drainage.6. Top-dress the first 50 feet adjacent to the public roadway with two to three inches of washed aggregate (INDOT CA No. 53)[optional, used primarily where the purpose of the pad is to keep soil from adhering to vehicle tires].7. Where possible, divert all storm water runoff and drainage from the ingress/egress pad to a sediment trap or basin.Maintenance·Inspect daily.·Reshape pad as needed for drainage and runoff control.·Top dress with clean aggregate as needed.·Immediately remove mud and sediment tracked or washed onto public roads.·Flushing should only be used if the water can be conveyed into a sediment trap or basin.Erosion Control BlanketInstallation1.Select the type and weight of erosion control blanket to fit the site conditions (e.g., slope, channel, flow velocity) per themanufacturer's specifications.2.Prepare the seedbed, add soil amendments, and permanently seed the area immediately following seedbed preparation.3.Lay erosion control blankets on the seeded area so that they are in continuous contact with the soil with each up-slope orup-stream blanket overlapping the down-slope or down-stream blanket by at least eight inches, or follow manufacturer'srecommendations.4.Tuck the uppermost edge of the upper blankets into a check slot (slit trench), backfill with soil and tamp down. In certainapplications, the manufacturer may require additional check slots at specific locations down slope from the uppermost edgeof the upper blankets.5.Anchor the blankets in place by driving staples, pins, or stakes through the blanket and into the underlying soil. Follow ananchoring pattern appropriate for the site conditions and as recommended by the manufacturer.Maintenance·Inspect within 24 hours of each rain event and at least once every seven calendar days.·Check for erosion or displacement of the blanket.·If any area shows erosion, pull back that portion of the blanket covering the eroded area, add soil and tamp, reseed the area,replace and staple the blanket.Pipe End SectionInstallation1. Divert surface water runoff around the structure during construction so that the site can be properly dewatered for foundation preparation.2. Excavate foundation and apron area subgrades below design elevation to allow for thickness of the filter medium and riprap.3. Compact any fill used in subgrade preparation to the density of surrounding undisturbed soil material.4. Smooth subgrade enough to protect geotextile fabric from tearing.5. Place geotextile fabric or aggregate bedding material (for stabilization and filtration) on the compacted and smoothed foundation.6. Install riprap to the lines and elevations shown in the construction plans.Blend riprap smoothly to surrounding grade. If the channel is well defined, extend the apron across the channel bottom and up the channel banks to anelevation of six inches above the maximum tailwater depth or to the top of the bank, whichever is less.7. If geotextile fabric tears when placing riprap, repair immediately by layingand stapling a piece of fabric over damaged area, overlapping the undamaged areas by at least 12 inches.8. Construct a small plunge pool within the outlet apron. (Riprap aprons must be level with or slightly lower than the receiving channel and should notproduce an overfall or restrict flow of the water conveyance structure.)Maintenance"Inspect within 24 hours of a rain event and at least once every seven calendar days."Inspect for stone displacement; replace stones ensuring placement at finished grade."Check for erosion or scouring around sides of the apron; repair immediately."Check for piping or undercutting; repair immediately.Storm Inlet ProtectionInstallation1.Dig an eight-inch deep, four-inch wide trench around the perimeter of the inlet.2.If using pre-assembled geotextile fabric and posts, drive the posts into the soil, tightly stretching the geotextile fabric between posts as each isdriven. (Posts must be placed on the inlet side of the anchor trench with the geotextile fabric on the side of the trench farthest from the inlet.)Note: If assembling the geotextile fabric and posts on-site, drive the posts into the soil and then secure the geotextile fabric to the posts by placing apiece of lathe over the fabric and fastening it to the post (stretching the fabric between posts as it is fastened).3.Use the wrap join method when joining posts.4.Place the bottom 12 inches of geotextile fabric into the eight-inch deep trench, laying the remaining four inches in the bottom of the trench andextending away from the inlet.5.Backfill the trench with soil material and compact it in place.6.Brace the posts by nailing braces into each corner post or utilize rigid panels to support fabric.Note: In situations where storm water may bypass the structure, either:·Set the top of the geotextile fabric filter at least six inches lower than the ground elevation on the down-slope side of the storm drain inlet,·Build a temporary dike, compacted to six inches higher than the fabric, on the down-slope side of the storm drain inlet, AND/OR·Use in conjunction with excavated drop inlet protectionMaintenance·Inspect daily.·Inspect geotextile fabric and make needed repairs immediately.·Remove sediment from pool area to provide storage for the next storm event.·Avoid damaging or undercutting fabric during sediment removal.·When contributing drainage area has been stabilized, remove sediment, properly dispose of all construction material, grade area to the elevationof the storm drain inlet top, then stabilize immediately.Also notify the National Response Center at 800-424-8802 and provide the following information:-Time of observation of the spill-Location of the spill-Identification of material spilled-Probable time of spill-Volume of the spill and duration-Present and anticipated movement of the spill-Weather conditions-Personnel at the scene-Action initiated by personnelSegregate and recycle wastes, such as greases, used oil or oil filters, antifreeze, cleaning solutions, automotive batteries,hydraulic and transmission fluids. Provide secondary containment and covers for these materials if stored onsite.Train employees and subcontractors in proper maintenance and spill procedures.Properly dispose of used oils, fluids, lubricants, and spill cleanup materials. Do not place used oil in a dumpster or pour into astorm drain or watercourse.Properly dispose of or recycle used batteries.Do not bury used tires.Repair leaks of fluids and oil immediately.Listed below is further information if you must perform vehicle or equipment maintenance onsite.Inspection and MaintenanceInspect and verify that BMPs are in place prior to the commencement of associated activities. While activities associated withthe BMP are under way inspect weekly to verify continued BMP implementation.Keep ample supplies of spill cleanup materials onsite.Maintain waste fluid containers in leak proof condition.Vehicles and equipment shall be inspected on each day of use. Leaks shall be repaired immediately or the problemvehicle(s) or equipment shall be removed from the project site.Inspect equipment for damaged hoses and leaky gaskets routinely. Repair or replace as needed.Permanent SeedingMaterials·Soil Amendments - Select materials and rates as determined by a soil test (contact your county soil and water conservationdistrict or cooperative extension office for assistance and soil information, including available soil testing services) or 400 to 600pounds of 12-12-12 analysis fertilizer, or equivalent. Consider the use of reduced phosphorus application where soil testsindicate adequate phosphorous levels in the soil profile.·Seed - Select an appropriate plant species seed or seed mixture on the basis of soil type, soil pH, region of the state, time ofyear, and intended land use of the area to be seeded (see Table 1).·Mulch -·Straw, hay, wood fiber, etc. (to protect seedbed, retain moisture, and encourage plant growth).·Anchored to prevent removal by wind or water or covered with premanufactured erosion control blankets.ApplicationSite Preparation1. Grade the site to achieve positive drainage.2. Add topsoil or compost mulch to achieve needed depth for establishment of vegetation. (Compost material may be added toimprove soil moisture holding capacity, soil friability, and nutrient availability.)Seedbed Preparation1. Test soil to determine pH and nutrient levels.2. Apply soil amendments as recommended by the soil test and work into the upper two to four inches of soil. If testing is not done,apply 400 to 600 pounds per acre of 12-12-12 analysis fertilizer, or equivalent.3. Till the soil to obtain a uniform seedbed. Use a disk or rake, operated across the slope, to work the soil amendments into theupper two to four inches of the soil.SeedingOptimum seeding dates are March 1 to May 10 and August 10 to September 30.Permanent seeding done between May 10 and August 10 may need to be irrigated.Seeding outside or beyond optimum seeding dates is still possible with the understanding that reseeding or overseeding may berequired if adequate surface cover is not achieved. Reseeding or overseeding can be easily accomplished if the soil surfaceremains well protected with mulch.1. Select a seeding mixture and rate. Select seed mixture based on site conditions, soil pH, intended land use, and expected levelof maintenance.2. Apply seed uniformly with a drill or cultipacker seeder or by broadcasting. Plant or cover the seed to a depth of one-fourth toone-half inch. If drilling or broadcasting the seed, ensure good seed-to-soil contact by firming the seedbed with a roller orcultipacker after completing seeding operations. (If seeding is done with a hydroseeder fertilizer and mulch can be applied with theseed in a slurry mixture.)3. Mulch all seeded areas and use appropriate methods to anchor the mulch in place. Consider using erosion control blankets onsloping areas and conveyance channels.Maintenance·Inspect within 24 hours of each rain event and at least once every seven calendar days until the vegetation is successfullyestablished.·Characteristics of a successful stand include vigorous dark green or bluishgreen seedlings with a uniform vegetative coverdensity of 90 percent or more.·Check for erosion or movement of mulch.·Repair damaged, bare, gullied, or sparsely vegetated areas and then fertilize, reseed, and apply and anchor mulch.·If plant cover is sparse or patchy, evaluate the plant materials chosen, soil fertility, moisture condition, and mulch application;repair affected areas either by overseeding or preparing a new seedbed and reseeding. Apply and anchor mulch on the newlyseeded areas.·If vegetation fails to grow, consider soil testing to determine soil pH or nutrient deficiency problems. (Contact your soil andwater conservation district or cooperative extension office for assistance.)·If additional fertilization is needed to get a satisfactory stand, do so according to soil test recommendations.·Add fertilizer the following growing season. Fertilize according to soil test recommendations.·Fertilize turf areas annually. Apply fertilizer in a split application. For cool-season grasses, apply one-half of the fertilizer in latespring and one half in early fall. For warm-season grasses, apply one-third in early spring, one-third in late spring, and theremaining one-third in middle summer.·Final stabilization shall be achieved when the land disturbing activities are complete and a uniform perennial vegetated coverwith a density of seventy percent (70%) has been established. (327 IAC 15-5-4 #27)VINYL CON CONCRETE WASHOUT SYSTEM SPECIFICATIONSVinyl-Con™ system utilizes a portable, self-contained and watertight container with filter bag system and Aqua-Solution™ to control, capture andcontain caustic concrete wastewater and washout material.Vinyl Con System is compliant with EPA regulations for Concrete Washout.Site Management·Complete installation of the system and have washout locations operational prior to concrete delivery.·Do not wash out concrete trucks or equipment into storm drains, wetlands, streams, rivers, creeks, ditches, or streets.·Never wash out into a storm sewer drainage system. These systems are typically connected to a natural conveyance system.·Where necessary, provide stable ingress and egress·Do not back flush equipment at the project site. Back flushing should be restricted to the plant os it generates large volumes of waste that mayexceed the capacity of the washout systems. If an emergency arises, back flush should only be performed with the permission of the on-site managerfor the project.·Location·Locate concrete washout systems at least 50 feet from any creeks, wetlands. ditches, karst features. or storm drains/manmade conveyancesystems.·To the extent practical, locate concrete washout systems in relatively flat areas that have established vegetation aid do not receive runoff fromadjacent land areas.·Locate in areas that provide easy access for concrete trucks and other construction equipment.·Locate away from other construction traffic to reduce the potential for damage to the system.Vinyl Con Container1.Locate the washout in an area that is free of rocks and other debris that may cause tears or punctures in the Vinyl Con Container.2.Spread the Vinyl-Con™ flat on the ground with the opening facing up3.Layout the framework pieces on the ground as follows:6x8 Vinyl-Con™: (4) 4-way corner fittings; (4) 7" upright fittings; (2) couplers; (4) 19" legs;(2) 47" walls; (4) 35.5" walls4.Assemble"Insert 47" wall into 4' pocket of Vinyl-Con™ (repeat on opposite side)"Attach (2) 35.5" walls together with (1) coupler (repeat on opposite side)"Insert the wall with coupler into 6' pocket of Vinyl-Con™ (repeat on opposite side)"Connect (4) legs into 4-ways"Connect (4) 4-ways in each corner to the walls"Insert 7" upright into the top of the 4-way on each corner (for use of filter bags)5.Loops are available on each corner to secure the Vinyl-Con™ to the ground with stakes in high wind areas. Once the concrete is in theVinyl-Con™ there is no need for stakes.Install Filter Bag1.Spread the Vinyl-Con™ Filter Bag flat inside the Vinyl-Con™ container2.Insert the 7" pvc uprights into the top of the corner fittings on the Vinyl-Con™ container3.Place the Filter Bag corner loops over the Vinyl-Con™ corner uprights. Be sure to twist the loops several times and then loop over thecorner pvc uprights. This helps secure the filter bag is place.4.Begin pouring concrete washout into the filter bag5.When the filter bag is full of concrete, lift the bag with the straps allowing the water to permeate through the bag and into the Vinyl-Con™container.6.Set the filter bag aside and refill the Vinyl-Con™ container with another filter bagMaintenance·Place a cover over the washout facility prior to a predicted rainfall event to preventaccumulation of water and possible overflow of thesystem·Inspect daily and after each storm event.·Inspect the integrity of overall structure including, the containment system.·Inspect the system for leaks, spills, and tracking of soil by equipment·Once filter bag is full of hardened washout material, remove for recycling.·Place another filter bag inside the Vinyl-Con watertight container and repeat step #1 over again multiple times.·Once Vinyl-Con watertight container is full of cementitious wastewater, place last filter baginside to allow wastewater to permeate upthrough the filter bag and broadcast Aqua-Solution into wastewater turning the wastewater into a gelled content in about 5 minutes.·Once entire filter bag of wastewater is a gelled content, remove for recycling.·Reuse Vinyl-Con watertight container, begin with step #1 with more filter bags.BenefitsThe Vinyl-Con™ Washout Systems is reusable with the filter bags. You may fill 1-3 filter bags by washing out 75+ concrete trucks (Vinyl Con 68). Onceeach filter bag is full of hardened concrete you lift the filter bag (rated for 2,500lbs) out of the Vinyl-Con container and set it aside for the concreterecycling company. Then after filling about 3 filter bags the Vinyl-Con is full of wash water. Place the fourth filter bag into the Vinyl-Con and let thewater permeate up through the filter bag until the bag has settled on the bottom of the Vinyl-Con container. Sprinkle aqua-solution into the water, thewater turn to gel in about 5 minutes. Once the water is in gel form lift the fourth filter bag and set aside for the concrete recyclers. The Vinyl-Concontainer is empty and ready to use again. (http://www.vinyl-con.com/ )SpecificationsDETAIL A:2 -Vinyl Con 68 (6'X8'size) Approximately 25+ concrete trucks per filter bag to washout up to 75-90+ concrete trucks until Vinyl-Conwatertight container is full of wastewater. Reuse again.Individual responsible for stormwater pollution prevention on site:Tim Waltert.walter@pultegroup.comPulte Group11590 N. Meridian St, Ste 530Carmel, Indiana 46032Phone: (317)575-2350