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Home My WebLink AboutC106-SWPP Specs-Be WellPROJECT DESCRIPTION The site is located at 445 Clark Street in Carmel, Indiana. The overall site is approximately 2.25 acres. The construction will disturb approximately 1.42 acres and will take place over a 24 month period. The existing site was master -planned for a commercial industrial use. The proposed improvements will consist of a / P P P one-story office building and associated parking lot. Estimated start of construction -October 2021 and completion -October 2026. SWPPP FOR CONSTRUCTION SITES. 1. HYDROLOGIC UNIT CODE HUC-14: # 05120201090030 and 40 2. RECEIVING WATERS Stormwater from the proposed improvements will be collected b the proposed storm P P P Y P P sewer system and will outlet into an existing storm sewer system that outlets into the WR Fertig legal drain, which drains to Eagle Creek and then onto the White River, the ultimate receiving water is the White River. 3. ESTIMATED PEAK DISCHARGE Proposed Conditions:l0-year pond discharge 1.86 cfs Proposed Conditions:100-year pond discharge 3.01 cfs - These numbers were calculated using the NRCS Type II method. 4. STORMWATER DISCHARGE POINTS Stormwater from the proposed improvements will be collected by the proposed storm sewer system and outlet into an existing storm sewer that outlets into the WR Fertig legal drain which drains to Eagle Creek which drains to to the White River, the ultimate receiving waters for the site. 5. POTENTIAL DISCHARGES TO GROUNDWATER No sinkholes or uncapped abandoned wells have been identified on the project site or P P P J downstream of the project site. There are also no infiltration practices planned for the project. 6. SOILS MAP See sheet C100 for the soils map. Soil maps from the United States Department of Agriculture, Soil Conservation Service, identify Crosby soil (CrA - 96% of site) and Brookston (Br - 4% of site.) The Crosby series are classified as type "C" soils. The Brookston series are classified as type "B/D" soils. 7. POTENTIAL CONSTRUCTION POLLUTANTS Potential pollutants sources relative to a construction site may include, but are not limited to material and fuel storage areas, fueling locations, exposed soils and leaking vehicle/equipment. Potential pollutants that may appear at the site due to construction activities include, but are not limited to diesel fuel, gasoline, concrete and concrete washout, solid waste, sediment, paint and solvents, equipment repair products, anti -freeze and fertilizer. 8. TEMPORARY AND PERMANENT STORMWATER QUALITY MEASURES a. Location The location of the temporary and permanent stormwater quality measures are shown on sheets C1 & C104. b. Dimensions The dimensions of each stormwater quality measure are shown on sheet C105. c. Detailed Specifications The detailed specifications for each stormwater quality measure can be seen on sheets C105 and C106. d. Construction details The construction details of each stormwater quality measure can be seen on sheet C105. e. Monitoring and maintenance guidelines The monitoring and maintenance guidelines for the temporary stormwater quality measures can be found under item 12 on sheet C106. The monitoring and maintenance for the permanent stormwater quality measures can be found under item 5 of the SWPPP Post -Construction section on sheet C106 and in the Operations & Maintenance manual for the project. 9. STORMWATER QUALITY SEQUENCE STEP # 1: CONTRACTOR TO SETUP PRE -CONSTRUCTION MEETING WITH THE CITY OF CARMEL PRIOR TO CONSTRUCTION. CONTRACTOR TO INSTALL CONSTRUCTION ENTRANCE PRIOR TO THE START OF EARTHWORK TO PREVENT SOIL FROM BEING TRACKED OR WASHED ONTO THE EXISTING ROADWAY. PLACE SILT FENCE AS NOTED AROUND PERIMETER OF SITE. (WITHIN FIRST WEEK OF CONSTRUCTION). STEP # 2: PLACEMENT OF INLET PROTECTION AT EXISTING AND SURROUNDING STORM INLETS TO REMAIN TO REMAIN DURING DEMOLITION. PLACE STRAW BALES JUST UPSTREAM OF THE EXISTING CULVERT PIPE IN THE ROADSIDE DITCH IN THE SOUTHEAST CORNER OF THE PROPERTY. STEP # 3: CONSTRUCTION OF STORM SEWER, SANITARY SEWER, WATERLINE, AND UTILITIES MAY BEGIN. INSTALL INLET SEDIMENT BARRIERS UPON CONSTRUCTION OF INLETS. AN EXCAVATED DROP INLET SHALL BE PLACED UNTIL INLETS HAVE PAVEMENT AROUND THEM AND SEDIMENT BARRIERS CAN BE PLACED. STEP # 4: CONTRACTOR SHALL TEMPORARY SEED ANY DISTURBED AREAS DURING CONSTRUCTION OF STORM SEWER, SANITARY SEWER, WATERLINE, UTILITIES OR ROADWAYS. (THROUGHOUT THE DURATION OF THE PROJECT) STEP # 5: FINISH GRADE SWALES, SLOPES, & MOUNDS. SEED ALL AREAS AS NOTED, AND INSTALL EROSION CONTROL BLANKETING WHERE NOTED. STEP # 6: COMPLETE DRIVE AISLES/PARKING AREAS. INSTALL PAVEMENT AREA INLET PROTECTION. STEP # 7: CONSTRUCT BUILDING AND FINAL GRADE OF LANDSCAPE AREAS. STEP # 8: INSTALL LANDSCAPING AND FINAL SEEDING. NOTE: INSTALL TEMPORARY SEEDING AFTER A SPECIFIC STAGE OF CONSTRUCTION HAS BEEN COMPLETED (TEMPORARY OR FINAL) WHERE AREAS WILL BE IDLE OF CONSTRUCTION ACTIVITIES FOR A PERIOD OF 15 DAYS OR MORE. 10. PROPOSED SOIL STOCKPILE, BORROW AND/OR DISPOSAL AREAS Soil stockpiles will most likely not be used for the project site, and material not re -used on the site will be hauled off and dis osed of properly. P 11. TEMPORARY & PERMANENT SURFACE STABILIZATION TEMPORARY SURFACE STABILIZATION - Temporary seeding will be used as temporary surface stabilization measures. The location of each temporary surface stabilization measure are on sheet C104. The details and specifications for each stated measure are on sheet C105. PERMANENT SURFACE STABILIZATION Permanent seeding will be used as permanent surface stabilization measures. The location of each permanent surface stabilization measure are on sheet C104. The details and specifications for each stated measure are on sheet C105. 12. EROSION AND SEDIMENT CONTROL SPECIFICATIONS CONSTRUCTION ENTRANCE INFORMATION The location of the construction entrance is on sheet C1 & C104. The construction entrance specifications are on sheet C105. Geotextile fabric shall be placed under the stone layer of the construction entrance. SHEET FLOW SEDIMENT CONTROL The use of silt fence will be used as erosion control measures for sheet flows. The location of each measure can be seen on sheets C1 & C104. The details and specifications for each stated sediment control measure is on sheet C105. CONCENTRATED FLOW SEDIMENT CONTROL Temporary seeding and erosion control blanketing will be used as erosion control measures for concentrated flows. Rip -rap will be laced around all end -sections to P P P minimize erosion from concentrated flows. The location of each measure is located on sheet C104. The details and specifications for each stated sediment control measure is on sheet C105. INLET PROTECTION LOCATIONS AND SPECS The location of each inlet protection measure is on sheets C1 & C104. The details and specifications for each inlet measure are on sheet C105. OUTLET PROTECTION SPECIFICATIONS Rip -rap will be placed around all end -sections to minimize erosion from concentrated flows. The location of each measure is located on sheet C104. The details and specifications for each stated sediment control measure is on sheet C105. GRADE STABILIZATION MEASURES No grade stabilization measures, other than rip -rap, are proposed. MONITORING AND MAINTENANCE GUIDELINES EROSION CONTROL SCHEDULE EROSION CONTROL MEASURE * MAINTENANCE INSTALLATION SEQUENCE STONE ENTRANCE AS NEEDED PRIOR TO CLEARING AND GRADING SILT FENCE WEEKLY AFTER STORM EVENTS AND AS NEEDED PRIOR TO CLEARING AND GRADING TEMPORARY DIVERSIONS WEEKLY AFTER STORM EVENTS AND AS NEEDED ALONG WITH ROUGH GRADING RIP -RAP HORSESHOE WEEKLY AFTER STORM EVENTS AND AS NEEDED IMMEDIATELY AFTER DETENTION BASIN CONSTRUCTION PERMANENT SEEDING WATER AS NEEDED AFTER FINISH GRADING EROSION CONTROL MATTING WEEKLY AFTER STORM EVENTS AND AS NEEDED AFTER FINISH GRADING SEED SOD & LANDSCAPE AROUND WATER AS NEEDED AFTER FINISHED GRADING AROUND FINISHED UNITS UNITS FINISHED REMOVAL OF STRAW BALES N/A AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED REMOVAL OF INLET PROTECTION N A AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED REMOVAL OF SILT FENCE N/A AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED REMOVAL OF RIP RAP HORSESHOE N/A AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED * - SEE CHART FOR MAINTENANCE REQUIREMENTS SILT FENCE MAINTENANCE REQUIREMENTS 1. 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 CLEAN OUT. 5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE FENCE AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABILIZE. TEMPORARY SEDIMENT TRAP MAINTENANCE REQUIREMENTS 1. INSPECT TEMPORARY SEDIMENT TRAPS AFTER EACH STORM EVENT AND IMMEDIATELY REPAIR ANY EROSION AND PIPING HOLES. 2. REMOVE SEDIMENT WHEN IT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH. 3. REPLACE SPILLWAY GRAVEL FACING IF CLOGGED. 4. INSPECT VEGETATION, AND RE -SEED IF NECESSARY. 5. CHECK THE SPILLWAY DEPTH PERIODICALLY TO ENSURE A MINIMUM OF 1.5 FT. DEPTH FROM THE LOWEST POINT OF THE SETTLED EMBANKMENT TO HIGHEST POINT OF THE SPILLWAY CREST, AND FILL ANY LOW AREAS TO MAINTAIN DESIGN ELEVATION. 6. PROMPTLY REPLACE ANY DISPLACED RIPRAP, BEING CAREFUL THAT NO STONES IN THE SPILLWAY ARE ABOVE DESIGN GRADE. 7. AFTER ALL DISTURBED AREAS HAVE BEEN STABILIZED, REMOVE THE STRUCTURE AND SEDIMENT, SMOOTH THE SITE TO BLEND WITH ADJOINING AREAS, AND STABILIZE. INLET SEDIMENT BARRIER MAINTENANCE REQUIREMENTS 1. INSPECT FREQUENTLY FOR DAMAGE BY VEHICULAR TRAFFIC, AND REPAIR IF NECESSARY. 2. INSPECT AFTER EACH STORM EVENT. 3. REMOVE SEDIMENT, WITHOUT FLUSHING, WHEN IT REACHES HALF THE HEIGHT OF THE BARRIER. 4. DEPOSIT REMOVED SEDIMENT WHERE IT WILL NOT ENTER STORM DRAINS. 13. MATERIAL HANDLING AND SPILL PREVENTION Expected materials that may appear at the site due to construction activities include, but are not limited to petroleum products, fertilizers, paint and solvents, and concrete. Materials shall be stored in the designated material storage area. Spill prevention for vehicle and equipment fueling shall conform to the following practices: vehicle equipment fueling procedures and practices are designed to prevent fuel spills and leaks, and reduce or eliminate contamination of stormwater. This can be accomplished b using offsite facilities fueling in designated areas only, enclosing or covering stored fuel implementing spill controls P Y 9 9 9 Y> 9 9 P 9 P and training employees and subcontractors in proper fueling procedures. Limitations: Onsite vehicle and equipment fueling should only be used where it is impractical to send vehicles and equipment offsite for fueling. Sending vehicles and equipment offsite should be done in conjunction with a Stabilized Construction Entrance/Exit. Implementation: Use offsite fueling stations as much as possible. Discourage "topping -off" of fuel tanks. Absorbent spill cleanup materials and spill kits should be available in fueling areas and on fueling trucks, and should be disposed of properly after use. Drippans or absorbent ads should be used during vehicle and equipment fuelin unless the fueling is performed over an impermeable surface in a dedicated fueling area. Use absorbent P P 99> 9 P P 9 materials on small spills. Do not hose down or bury the spill. Remove the absorbent materials promptly and dispose of properly. Avoid mobile fueling of mobile construction equipment around the site; rather, transport the equipment to designated fueling areas. Train employees and subcontractors in proper fueling and cleanup procedures. Dedicated fueling areas should be protected from stormwater runon and runoff, and should be located at least 50 ft awayfrom downstream drainage facilities and watercourses. Fueling must be performed on level -grade area. Protect fueling areas 9 9 P 9 9 with berms and dikes to prevent runon, runoff, and to contain spills. Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff to control drips. Fueling operations should not be left unattended. Federal, state, and local requirements should be observed for any stationary above ground storage tanks. Vehicles and equipment should be inspected each day of use for leaks. Leaks should be repaired immediate) or problem vehicles orequipment should be removed from the project site. Kee P Y P Y PP J P ample supplies of spill cleanup materials onsite. Immediately clean up spills and properly dispose of contaminated soils. Spill prevention for solid waste shall conform to the following practices: Solid waste management procedures and practices are designed to prevent or reduce the discharge of pollutants to stormwater from solid or construction waste by providing designated waste collection areas and containers, arranging for regular disposal, and training employees and subcontractors. Solid waste generated from trees and shrubs removed during land clearing, demolition of existing structures, and building 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 bags, plastic wrappers, and cigarettes. Construction wastes including brick, mortar, timber, steel and metal scraps, pipe and electrical cuttings, non -hazardous equipment parts, Styrofoam and other package construction materials. 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 rain and wind conditions. Remove Y q P P 9 P Y� P Y 9 Y Y this solid waste promptly since erosion and sediment control devices tend to collect litter. Make sure that toxic liquid wastes (sued oils, solvents and paints) and chemicals (acids, pesticides, additives, curing compounds) are not disposed of in dumpsters designed 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. 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. Inspect construction waste area regularly. Arrange for regular waste collection. Spill prevention for concrete washout shall conform to the following practices: Store dry and wet materials under cover, away from drainage areas. Avoid mixing excess amounts of fresh concrete. Perform washout of concrete trucks offsite 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 duped onsite, except in designated areas. Locate washout areas at least 50 ft 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. The cleanup parameters shall conform to the following practices: The developer / homeowners association shall be continually kept informed, maintain lists of qualified contractors and available Vac -trucks, tank pumpers and other equipment readily accessible for cleanup operations. In addition, a continually updated list of available absorbent materials and cleanup supplies should be kept on site. All maintenance personnel will be made aware of techniques for prevention of spills. They 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 and / or necessary alteration to this plan. When spills occur which could endanger human life and this become primary concern, the discharge of the life saving protection function will be carried out by the local police and fire departments. Absorbent materials, which are used in cleaning up spilled materials, will be disposed of in a manner subject to the approval of the Indiana Department of Environmental Management. Flushing of spilled material with water will not be permitted unless so authorized by the Indiana Department of Environmental Management. Spill prevention for vehicle and equipment maintenance shall conform to the following practices: Prevent or reduce the contamination of stormwater resulting from vehicle and equipment P P9 P 9 maintenance by running a "dry and clean site". The best option would be to perform maintenance activities at an offsite facility. If this option is not available then work should be performed in designated areas only, while providing cover for materials stored outside, checking for leaks and spills, and containing and cleaning up spills immediately. These procedures are suitable on all construction projects where an onsite yard area is necessary for storage and maintenance of heavy equipment and vehicles. Onsite vehicle and equipment maintenance should only be used where it is impractical to send vehicles and equipment offsite for maintenance and repair. Sending vehicles / equipment offsite should by done in conjunction with a stabilized construction entrance / exit. Out door vehicle or equipment maintenance is a potentially significant source of stormwater pollution. Activities that can contaminate stormwater include engine repair and service, changing or replacement of fluids, and outdoor equipment storage and parking (engine fluid leaks). If maintenance must occur onsite, use designated areas, located away from drainage courses. Dedicated maintenance areas should be protected from stormwater runon and runoff, and should be located at least 50 ft from downstream drainage facilities and water courses. Drip pans or absorbent pads should be used during vehicle and equipment maintenance work that involves fluids, unless the maintenance work is performed over and impermeable surface in a dedicated maintenance area. Place a stockpile of spill cleanup materials where it will be readily accessible. All fueling trucks and fueling areas are required to have ill kits and/or use others ill protection devices. Use absorbent materials on P P Y 9 9 q P / P smalls ills. Remove the absorbent materials promptly and dispose ofproperly. Ins ect onsite vehicles and equipment dail at startup for leaks and repair immediately. Dee vehicles and equipment P P P Y P PY P P Y P clean; do not allow excessive buildup of oil and grease. Segregate 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 cleanup procedures. Drip pans or plastic sheeting should by placed under all vehicles and equipment placed on docks, barges, other structures over water bodies when the vehicle or equipment is planned to be idle for more than 1 hour. Properly dispose of used oils, fluids, lubricants, and spill cleanup materials. Properly dispose of or recycle used batteries. Do not place used oil in a dumpster or pour into a storm drain or water course. Properly dispose of used oils, fluids, lubricants, and spill cleanup materials. Don not bury tires. Repair leaks of fluids and oil immediately. Spill prevention for fertilizers shall conform to the following practices: Fertilizer's used will be applied only in the minimum amounts recommended by the manufacturer. Once applied, fertilizer will be worked into the soil to limit exposure to storm water. The contents of any partially used bags of fertilizer will be transferred to a sealable plastic bin to avoid spills. Spill prevention for paint and solvents shall conform to the following practices: All containers will be tightly sealed and stored when not required for use. EXCESS PAINT WILL NOT BE DISCHARGED TO THE STORM SEWER SYSTEM but will be properly disposed of according to manufacturers' instructions or State or local regulations. Spill prevention and cleanup shall conform to IDEM form 327 IAC 2-6 and the Carmel Engineering Department (317-571-2441), Carmel Fire Department (317-571-2600), Hamilton County Surveyors office (317-776-8495), 911 and IDEM Spill Response Center (888-233-7745) shall be contacted in the case of a material spill occurring. 14. TRAINED INDIVIDUAL CONTACT INFORMATION BLOCK AND GRAVEL CURB INLET PROTECTION MAINTENANCE REQUIREMENTS 1. AFTER EACH STORM EVENT, REMOVE THE SEDIMENT AND REPLACE THE GRAVEL; REPLACE THE GEOTEXTILE FABRIC, IF USED. 2. PERIODICALLY REMOVE SEDIMENT AND TRACKED -ON SOIL FROM THE STREET, WITHOUT FLUSHING, TO REDUCE THE SEDIMENT LOAD ON THE CURB INLET PROTECTION. 3. INSPECT PERIODICALLY FOR DAMAGE AND REPAIR; KEEP GRATES FREE OF DEBRIS. 4. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE GRAVEL, WIRE MESH, GEOTEXTILE FABRIC, AND ANY SEDIMENT, AND DISPOSE OF THEM PROPERLY. EROSION CONTROL BLANKET (SURFACE APPLIED) MAINTENANCE REQUIREMENTS 1. DURING VEGETATIVE ESTABLISHMENT, INSPECT AFTER STORM EVENTS FOR ANY EROSION BELOW THE BLANKET. 2. IF ANY AREA SHOWS EROSION, PULL BACK THAT PORTION OF THE BLANKET COVERING IT, ADD SOIL, RE -SEED THE AREA, AND RE -LAY AND STAPLE THE BLANKET. 3. AFTER VEGETATIVE ESTABLISHMENT, CHECK THE TREATED AREA PERIODICALLY. TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS 1. INSPECT ENTRANCE PAD AND SEDIMENT DISPOSAL AREA WEEKLY AND AFTER STORM EVENTS OR HEAVY USE. 2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL. 3. TOPDRESS WITH CLEAN STONE AS NEEDED. 4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS BY BRUSHING OR SWEEPING. FLUSHING SHOULD ONLY BE USED IF THE WATER IS CONVEYED INTO A SEDIMENT TRAP OR BASIN. 5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY. Ms. Swathi Rao Be Well Family Care 11495 N. Pennsylvania Street Carmel, IN 46032 (317) 522-7883 3/21/08 Exhibit 602-1.: Individual Building Lot Typical Erosion & Sediment Control Plan and Certification INDIVIDUAL LOT PROTECTION PLAN NOTE THE INDIVIDUAL LOT PROTECTION PLAN SHOULD BE ADAPTED FOR THE PROJECT SITE TO ALLOW FOR CURBSIDE PROTECTION (SILT FENCE) AND CONSTRUCTION ENTRANCES AT ALL POINTS OF INGRESS/EGRESS DURING BUILDING CONSTRUCTION. 600-11 SWPPP FOR POST- CON STRU CTI ON 1. POTENTIAL LANDUSE POLLUTANTS Potential pollutant sources that may appear at the site due to proposed land use activities, but are not limited to vehicles, exposed soil and trash. Potential pollutants include, but are not limited to oil, grease, diesel fuel, gasoline, anti -freeze, auto soap and fertilizer. 2. STORMWATER QUALITY DESCRIPTION The use of one mechanical water quality structure Aqua -Swirl AS-3 BYP will provide the stormwater quality requirements. The location of stormwater quality measures are on sheet C104. The stormwater quality specifications are provided on sheets C802 & C803. 3. STORMWATER QUALITY IMPLEMENTATION Final stormwater quality measures will be implemented after grading is finalized and the storm sewer system is finalized. Sequences of stormwater quality items are described in the erosion control schedule in Section 12, If any sediment has accumulated in the detention facility, the sediment shall be removed prior to the final erosion control inspection, 4. STREAM STORMWATER QUALITY MEASURES The location of each post -construction stormwater quality measures can be seen on sheet C104. The details and specifications of each measure is on sheets C105, C802 and C803. 5. MAINTENANCE GUIDELINES Any debris in the parking areas should be picked up and placed in the trash receptacle. The parking area shall be kept clean and be swept every 3 months. AQUA -SWIRL Inspect the Aqua -Swirl every six months and clean the system as needed. Inspect and clean the system once annually regardless of whether it has reached its sediment or floatable pollutant storage capacity. Call a local vactor company to remove sediments, oil, and other floatable pollutants with a vactor. Dispose of all waste in accordance with federal, state and local requirements. Water and sediment from cleaning procedures should NOT be dumped into a sanitary sewer. DRY DETENTION BASIN Inspect the dry detention basin every six months and clean the system as needed. Keep the banks free of debris and trash. Keep the pipe ends and end sections free of debris and trash, Once a year, inspect the sediment accumulation. Dispose of all waste in accordance with federal, state and local requirements. Water and sediment from cleaning procedures should NOT be dumped into a sanitary sewer. TRASH DUMPSTER Inspect the Trash Dumpster weekly and clean it as needed. Inspect and clean the dumpster area once annually regardless of whether it appears clean or not. Call a local commercial cleaning or vactor company to remove sediment, oil and other pollutants with a power washer and vactor. The use of sand bags or mulch socks may be needed to trap the dirty water while it is being collected. Dispose of all waste in accordance with federal, state and local requirements. Water and sediment from cleaning procedures should NOT be dumped into a sanitary sewer. z I- J D u7 z O U F+� Z W P�61 0_ O CJ cM _J w w z w Q r � o > a Z N (v� ao O g Z X �r� o . 6ca_ OJ WZ_ W O n :30 aD a) a_ �'U) U) U Z N 0 Z - LO Q 0 ~ :Wi Q-z� J rY w w z CD Z w > U �;< J w 51i U U 00 WN wW im im Z¢a U)Co g WCI CI i i w Q� (.) '-'� z Y Z Q � U. J J W J U � J o Q w cn � N U Ir- m ` � 1ST No. PE19800489 -o = STATE OF AND I ALIENG�`�. BY: DATE: 06/1 1 /21 1EET C6 OF JOB#: BWF.001