HomeMy WebLinkAboutC010.15_G2.06-SWPPPCONSULTANTPROJECT NUMBER: 220128.00/2020-367CARMEL CLAY SCHOOLSPROJECT ISSUE DATE: 01.13.2021DRAWN BY: ARSREV.NO.DESCRIPTIONDATECONSTRUCTION DOCUMENTSWWW.FHAI.COMARCHITECT317-848-0966350 E NEW YORK ST# 300, INDIANAPOLIS, IN 46204COPYRIGHT 2021 BY FANNING/HOWEY ASSOCIATES, INC.CARMEL MIDDLESCHOOL SITE300 S Guilford RdCARMEL, IN 46032IMPROVEMENTSPROJECT : 220128.00PROJECT MANAGER: BNHSTORMWATER POLLUTIONPREVENTION PLANLOCATION MAPSOILS MAPFIRMSOILS TYPESINLETS, VALVES, AND MARKS MADE UPON THE GROUND BYALSO BE OTHER EXISTING UNDERGROUND UTILITIES FOR WHICH THERE IS NO ABOVE GROUND EVIDENCE OR FOREXACT LOCATIONS OF EXISTING UNDERGROUND UTILITIESSHALL BE VERIFIED BY CONTRACTOR PRIOR TO ANY AND WHICH NO ABOVE GROUND EVIDENCE WAS OBSERVED. THE OTHERS) AND ARE SPECULATIVE IN NATURE. THERE MAYALL CONSTRUCTION.THE LOCATIONS OF ALL EXISTING UNDERGROUND UTILITIESEVIDENCE (INCLUDING, BUT NOT LIMITED TO, MANHOLES,SHOWN ON THE PLAN ARE BASED UPON ABOVE GROUNDCAUTION !!Know what'sbelow.before you dig.CallRCall 811 or 1-800-382-5544 Before You Begin Any Digging Project.Call 48 hours or 2 working days before you dig.It's Fast, It's Easy and It's the Law in the state of Indiana! A211 BY 17 INCH PLATREFER TO SITE PLANA3PROJECT NARRATIVETHIS PROJECT INVOLVES PARTIAL REMOVAL AND PARTIAL MILLING OF ANEXISTING ASPHALT PARKING LOT ON THE EAST SIDE OF THE EXISTING BUILDING.ADDITIONAL CONCRETE SIDEWALKS WILL BE ADDED AROUND THE PARKING AREAAND ON THE WEST SIDE OF THE EXISTING BUILDING. AN ADDITIONAL ASPHALTENTRY/EXIT DRIVE FROM GRAND BLVD. WILL BE ADDED ON THE SOUTH SIDE OFTHE PARCLE. INFRASTRUCTURE INCLUDING STORM SEWERS IS ALSO INCLUDEDAS PART OF THIS PROJECT.A4VICINITY MAPTHE VICINITY MAP IS LOCATED ON THIS SHEET. LATITUDE N 39° 58' 31";LONGITUDE W 86° 8' 30"A5LEGAL DESCRIPTIONTHE PROJECT PROPERTY IS LOCATED IN HAMILTON COUNTY INDIANA. (SEESURVEY SHEETS SV-1 AND SV-2 FOR LEGAL DESCRIPTION)A6LOCATION OF ALL LOTS AND PROPOSED SITE IMPROVEMENTSALL LOT INFORMATION IS INCLUDED IN THE PLAN VIEW OF THE EROSIONCONTROL PLANS.A7HYDROLOGIC UNIT CODETHE HYDROLOGIC UNIT CODE FOR THIS PROJECT IS: 05120201090030A8STATE AND/OR FEDERAL WATER QUALITY PERMITSTHERE ARE NO ADDITIONAL WATER QUALITY PERMITS REQUIRED.A9STORMWATER DISCHARGESTORMWATER DISCHARGE WILL LEAVE THE SITE VIA AN EXISTING 30" RCP ANDEXISTING 24" PVC PIPE LOCATED ON THE NORTHEAST SIDE OF THE PROJECT SITE.THE SOUTH SIDE PROJECT AREA WILL EXIT THE SITE VIA AN EXISTING 18" RCP.BOTH OF THESE PIPES EVENTUALLY OUTLETS INTO COOL CREEK.A10WETLANDS, LAKES AND WATER COURSESTHERE ARE NO WETLAND AREAS LOCATED WITHIN THE PROJECT SITE.A11RECEIVING WATERSTHE RECEIVING WATER IS THE WHITE RIVER LOCATED SOUTHEAST OF THEPROJECT SITE.A12POTENTIAL DISCHARGES TO GROUND WATERSTORM WATER FROM THE DEVELOPED AREA COULD POSSIBLY INTERACT WITHGROUND WATER SOURCES THROUGH NATURAL PERCOLATION PROCESS.A13100 YR. FLOOD PLAINS, FLOODWAYS AND FLOODWAY FRINGESTHE PROJECT SITE DOES NOT LIE WITHIN A FLOOD PLAIN.A14PRE-CONSTRUCTION AND POST CONSTRUCTION PEAK DISCHARGEQ PRE (10 YR.) = 62.2 cfsQ POST (10 YR.) = 63.0 cfsA15ADJACENT LAND USEADJACENT LAND USE IS A MIX OF RESIDENTIAL AND COMMERCIAL IN ALLDIRECTIONS.A16DISTURBED AREASDISTURBED AREAS ARE NOTED ON THE EROSION CONTROL PLAN. THE TOTAL OFDISTURBED AREA IS TO BE 1.59 ACRES.A17EXISTING VEGETATIVE COVERTHE EXISTING SITE IS PRIMARILY GRASS WITH PAVED ROADWAYS AND PARKINGLOTS ON THE NORTH AND SOUTH. GRASS SPORTS FIELDS ON WEST SIDE OF THEPROJECT SITE.A18SOILS MAP AND SOIL DESCRIPTIONTHE SOILS MAP AND SOIL DESCRIPTIONS CAN BE FOUND ON THIS SHEET.A19PROPOSED STORMWATER SYSTEMSTHE PROPOSED STORMWATER SYSTEM INCLUDES STORM PIPE AND ABIORETENTION AREA. SIZES AND DIMENSIONS ARE LOCATED ON THE GRADING/UTILITY PLAN SHEETS.A20OFF-SITE CONSTRUCTION ACTIVITIES THERE ARE NO OFF-SITE CONSTRUCTION ACTIVITIES ASSOCIATED WITH THISPROJECT.A21SOIL STOCKPILES, BORROW/DISPOSAL AREASNO SOIL STOCKPILES WILL BE CREATED AS PART OF THIS PROJECT. ALLDEMOLITION MATERIALS WILL REMOVED FROM SITE AND DISPOSED OF AT ANAPPROVED SITE.A22EXISTING SITE TOPOGRAPHYTHE EXISTING SITE TOPOGRAPHY CAN BE FOUND ON THE SITE SURVEY.A23PROPOSED SITE TOPOGRAPHYTHE PROPOSED SITE TOPOGRAPHY CAN BE FOUND ON THE GRADING PLANS ANDEROSION CONTROL PLANS.ASSESSMENT OF CONSTRUCTION PLAN ELEMENTSSECTION AB1POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTVITIESTHERE IS A POTENTIAL FOR POLLUTANTS ASSOCIATED WITH CONSTRUCTION MACHINERY INCLUDING DIESEL FUEL,HYDRAULIC FLUID, ENGINE OILS AND LUBRICANTS, ANTIFREEZE AND OTHER PETROLEUM PRODUCTS. SOIL AND SEDIMENTDISTURBED DURING EARTHWORK ACTIVITIES COULD BE BECOME POLLUTANTS IF THE TRANSPORT OF THESE MATERIALSBY WIND AND/OR WATER IS NOT MEDIATED BY EROSION CONTROL MEASURES.B2SEQUENCE OF STORMWATER QUALITY MEASURE IMPLEMENTATIONPRIOR TO MOBILIZING HEAVY EQUIPMENT, THE TEMPORARY STONE CONSTRUCTION ENTRANCE SHALL BE INSTALLED.IMMEDIATELY UPON MOBILIZING, THE CONTRACTOR SHALL POST THE NECESSARY PERMITS AND RULE 5 DOCUMENTATIONAT THE WEST END OF THE SITE. PRIOR TO STARTING EARTHWORK OPERATIONS OR ANY OTHER SOIL DISTURBINGACTIVITY, ALL THE SILT FENCE SHALL BE INSTALLED . ALONG WITH THE SILT FENCE INSTALLATION, ALL EXISTING INLETSSHALL BE PROTECTED AS INDICATED ON THE PLAN.TEMPORARY SEEDING, EROSION CONTROL BLANKET AND RIPRAPSHALL BE INSTALLED AS EARTHWORK IS IMPLEMENTED.B3CONSTRUCTION ENTRANCETHE CONSTRUCTION ENTRANCE SHALL BE LOCATED AT THE ENTRANCE TO THE PROJECT. THE PLANNED LOCATION CAN BEFOUND ON THE EROSION CONTROL PLAN.B4SEDIMENT CONTROL MEASURES FOR SHEET FLOWSILT FENCE SEDIMENT CONTROL MEASURES ARE SHOWN ON THE EROSION CONTROL PLANS. DETAILS CAN BE FOUND ONTHE EROSION CONTROL DETAILS SHEET.B5SEDIMENT CONTROL MEASURES FOR CONCENTRATED FLOWEROSION CONTROL BLANKET SERVES AS CONCENTRATED FLOW SEDIMENT CONTROL MEASURES.THESE MEASURES ARESHOWN ON THE EROSION CONTROL PLANS. DETAILS CAN BE FOUND ON THE EROSION CONTROL DETAILS SHEET.B6STORM SEWER INLET PROTECTIONSTORMWATER INLET CONTROL MEASURES CONSISTING OF TEMPORARY SEDIMENT BAGS ARE SHOWN ON THE EROSIONCONTROL PLANS. DETAILS CAN BE FOUND ON THE EROSION CONTROL DETAILS SHEET.B7RUNOFF CONTROL MEASURESRUNOFF CONTROL MEASURES INCLUDE SILT FENCE WHICH IS SHOWN ON THE EROSION CONTROL PLANS. DETAILS CAN BEFOUND ON THE EROSION CONTROL DETAILS SHEET.B8STORMWATER OUTLET PROTECTIONSTORM WATER OUTLET FOR THE NORTH PROJECT AREA DISCHARGES DIRECTLY TO AND EXISTING 24" AND 30" STORMSEWERS. THE SOUTH PROJECT AREA DISCHARGES TO AN EXISTING 18" STORM SEWER.B9GRADE STABILIZATION STRUCTURESNO STABILIZATION STRUCTURES ARE REQUIRED FOR THIS PROJECT.B10LOCATION, DIMENSION, SPECIFICATIONS AND DETAILS OF EACH STORMWATER QUALITYMEASUREEACH STORMWATER QUALITY MEASURE IS SHOWN ON THE EROSION CONTROL PLANS. DETAILS CAN BE FOUND ON THEEROSION CONTROL DETAILS SHEET.B11TEMPORARY SURFACE STABILIZATIONTEMPORARY SURFACE STABILIZATION IS REQUIRED WHEN DISTURBED AREAS ARE EXPECTED TO REMAIN INACTIVE FOR APERIOD EXCEEDING 15 DAYS. THESE AREAS ARE PLANNED FOR TEMPORARY SEEDING ACCORDING TO THE SEEDING TABLEPROVIDED ON THE EROSION CONTROL DETAILS SHEET.B12PERMANENT SURFACE STABILIZATIONALL AREAS ARE PLANNED FOR PERMANENT SURFACE COVER INCLUDING PAVED AREAS, PAVED WALKS, BUILDING ROOFTOPS, OR VEGETATIVE COVER. WHEN SEASONAL VARIATIONS PREVENT THE INSTALLATION OF THESE SURFACE COVERS,THE CONTRACTOR SHALL INSTALL MULCHING OR EROSION CONTROL BLANKET OVER VULNERABLE DISTURBED AREAS.B13MATERIAL HANDLING AND SPILL PREVENTIONSPILL PREVENTION SHALL BE ACCOMPLISHED BY UTILIZING SPILLGUARDS FOR EQUIPMENT FUELING AND SERVICINGOPERATIONS. SPILLGUARDS SHALL BE 3'X3'X6" AND SHALL BE CONSTRUCTED OF A MATERIAL RESISTANT TO PETROLEUMPRODUCTS. ON-SITE FUEL STORAGE TANKS SHALL HAVE EMERGENCY STORAGE CAPACITY DIRECTLY BELOW THE TANK INCASE OF RUPTURE. ANY HAZARDOUS MATERIAL SPILLAGE SHALL BE COLLECTED AND/OR CLEANED IMMEDIATELY BY ATRAINED INDIVIDUAL AND DISPOSED OF IN ACCORDANCE WITH ALL FEDERAL, STATE AND LOCAL REGULATIONS.B14MONITORING AND MAINTENANCE GUIDELINESMONITORING AND MAINTENANCE GUIDELINES FOR EACH EROSION CONTROL BEST MANAGEMENT PRACTICE IS INCLUDEDWITH THE DETAIL FOR THAT PRACTICE. EROSION CONTROL PRACTICE DETAILS ARE FOUND ON THE EROSION CONTROLPLAN. THE CONTRACTOR IS RESPONSIBLE FOR COMPLETING WEEKLY INSPECTION REPORTS FOR THE PURPOSE OFEVALUATING THE EFFECTIVENESS AND CONDITIONS OF THE INSTALLED PRACTICES. DAILY INSPECTIONS ARE REQUIREDDURING PERIODS OF RAINFALL EQUAL TO OR EXCEEDING 1/2".B15EROSION AND SEDIMENT CONTROL MEASURES BUILDING LOTSTHERE ARE NO INDIVIDUAL BUILDING LOTS CREATED AS PART OF THIS PROJECT.STORMWATER POLLUTION PREVENTION - DURING CONSTRUCTIONSECTION BC1POTENTIAL POLLUTANTS ASSOCIATED WITH PROPOSED LAND USETHE EXISTING AND FUTURE USE OF THE IMPROVED AREAS INVOLVES THE DRIVING AND PARKING OF PRIVATE VEHICLES ONASPHALT PAVED SURFACES. CONTAMINANTS TYPICALLY FOUND IN PARKING AREAS AND ON ROADS INCLUDE THEFOLLOWING;1.OIL & GREASE2.ANTIFREEZE3.BRAKE FLUID & BRAKE DUST4.RUBBER FRAGMENTS5.GASOLINE, DIESEL FUEL AND OTHER HYDROCARBONS6.METALS FROM VEHICLES7.GRIT AND SEDIMENT FROM WEARING OF THE ROAD SURFACE8.MATERIAL FALLING OR WASHING OFF OF VEHICLES9.TRASH AND OTHER BIOLOGICAL AGENTS CONTAINED IN THE TRASHC2POST CONSTRUCTION STORMWATER QUALITY MEASURE IMPLEMENTATION1.THE MECHANICAL BMP WILL REMAIN IN PLACE AS A PERMANENT FEATURE AFTER CONSTRUCTION IS COMPLETED. THEPURPOSE OF THIS MEASURE IS TO PROVIDE A SEDIMENT REMOVAL FUNCTION.2.BROOM CLEAN ALL PAVED AREAS PRIOR TO REMOVING INLET PROTECTION.C3PROPOSED POST CONSTRUCTION STORMWATER QUALITY MEASURESBIORETENTION AREATHE BIORETENTION AREA WILL TEMPORARILY HOLD AND GRADUALLY RELEASE EXCESS STORMWATER FROM STORMEVENTS. DETENTION IS ACHIEVED THROUGH THE USE OF AN OUTLET PIPE THAT REGULATES THE RATE OF STORMWATEROUTFLOW.MECHANICAL BMPA BMP STRUCTURE WILL BE PLACED AT THE DOWNSTREAM END OF THE STORM SEWER SYSTEM. THE PRIMARY PURPOSEOF THIS BMP IS TO REMOVE SEDIMENT, OILS AND FLOATABLE DEBRIS FROM THE STORMWATER PRIOR TO DISCHARGINGFROM THE SITE.SEDIMENT SUMPA SEDIMENT SUMP IS DESIGNED TO RETAIN GRIT AND DETRITUS BELOW THE POINT OF OVERFLOW.GOOD HOUSE KEEPING MEASURESGOOD HOUSEKEEPING MEASURES SUCH AS REGULAR STREET SWEEPING, INSTALLATION OF TRASH RECEPTACLES, ANDREDUCTION IN FERTILIZER OVERSPRAY CAN BE INCORPORATED BY THE OWNER AND/OR OCCUPANT.C4LOCATION, DIMENSION, SPECIFICATIONS AND DETAILS OF EACH STORMWATER QUALITYMEASURETHE FOLLOWING ITEMS ARE STORMWATER QUALITY MEASURES THAT WILL BE INSTALLED DURING CONSTRUCTION. THESEITEMS WILL REMAIN IN PLACE AFTER CONSTRUCTION IS COMPLETED AND ARE CONSIDERED TO SERVE AS INCIDENTALFUNCTION AS POST-CONSTRUCTION STORMWATER QUALITY BMPs.BIORETENTION AREATHE BIORETENTION AREA IS LOCATED WEST OF THE PROPOSED SOUTH ENTRANCE..MECHANICAL BMP (AQUA-SWIRL)IS LOCATED DOWNSTREAM ON THE 30" EXISTING STORM SEWER AT THE NORTHEAST CORNER OF THE EAST PARKING LOT.SEDIMENT SUMPA SEDIMENT SUMP IS PROVIDED AT THE STORM STRUCTURE ADJACENT TO THE MECHANICAL BMP.C5MAINTENANCE GUIDELINES OF POST CONSTRUCTION STORMWATER QUALITY MEASURESMAINTENANCE REQUIREMENTS FOR THE STORMWATER QUALITY MEASURES WHICH WILL REMAIN IN PLACE AFTERCONSTRUCTION IS COMPLETE, ARE DESCRIBED BELOW. REFER TO THE BMP OPERATIONS AND MAINTENANCE MANUALFOR MORE DETAILED MAINTENANCE REQUIREMENTS.BIORETENTION AREAINSPECT PERIODICALLY AS NEEDED AFTER EACH MAJOR RAINFALL EVENT OR AT LEAST EVERY SIX MONTHS. ANY TRASHOR DEBRIS ACCUMULATED WITHIN THE SYSTEM SHOULD BE REMOVED IMMEDIATELY. SEDIMENT AND TRASH DEBRIS SHALLBE DISPOSED OF OFF SITE IN ACCORDANCE WITH ALL APPLICABLE LAWS.MECHANICAL BMP (AQUA-SWIRL)FREQUENT INSPECTION AND CLEANING IS CRITICAL FOR PROPER OPERATION. RECOMMENDED INSPECTION ANDMAINTENANCE SCHEDULES VARY WITH MANUFACTURER.SEDIMENT SUMPFREQUENT INSPECTION AND CLEANING IS CRITICAL FOR PREVENTING/REDUCING SEDIMENT FROM ENTERING THEDOWNSTREAM CHANNEL. RECOMMEND INSPECTING AFTER EACH MAJOR RAINFALL EVENT.STORMWATER POLLUTION PREVENTION - POST CONSTRUCTIONSECTON CCONSTRUCTION SOLID WASTE MANAGEMENT1.PROVIDE CONTINUOUS SITE MONITORING AND CLEANUP. COLLECT TRASH ON ADAILY BASIS. PROVIDE AS MANY WASTE BINS AS NEEDED TO KEEP SITE CLEAN OFLITTER AND WASTE. DURING EXTENDED PERIODS OF RAINFALL, WASTE BINS MUSTBE COVERED.2.LOOSE MATERIALS RESULTING FROM THE CONSTRUCTION AND DEMOLITION SHALLBE PROMPTLY REMOVED FROM THE SITE BY THE CONTRACTOR. WHENNECESSARY TO STORE CONSTRUCTION AND DEMOLITION DEBRIS ONSITE, THEMATERIALS SHALL BE CONCEALED IN COVERED DUMPSTERS OR STOCKPILED ANDCOVERED. LOCATE STOCK PILES SUFFICIENTLY FAR AWAY FROM DRAINAGEINLETS (50 FT MINIMUM SEPARATION).3.SEGREGATE AND RECYCLE WASTE MATERIALS WHEN APPROPRIATE.4.ARRANGE FOR REGULAR WASTE COLLECTION BY LICENSED TRASH HAULER.5.PROVIDE SECONDARY CONTAINMENT FOR HAZARDOUS MATERIAL CONTAINERS.6.COMPLY WITH ALL STATE AND LOCAL SOLID WASTE DISPOSAL AND NUISANCEREQUIREMENTS.7.TRAIN EMPLOYEES AND SUBCONTRACTORS TO USE PROPER SOLID WASTEMANAGEMENT PRACTICES.SANITARY WASTE MANAGEMENT1.DO NOT PLACE TEMPORARY FACILITIES (PORT-O-LETS) ON PAVED AREAS. LOCATETEMPORARY FACILITIES AT LEAST 50 FEET FROM STORM DRAINAGE INLETS.2.UNTREATED RAW WASTEWATER MAY NOT BE DISCHARGED TO LAND, THE STORMDRAIN SYSTEM OR TO SURFACE WATER BODIES.3.SANITARY/SEPTIC FACILITIES SHOULD BE MAINTAINED IN GOOD WORKING ORDERBY A LICENSED SERVICE PROVIDER.4.ARRANGE REGULAR WASTE COLLECTION BY A LICENSED HAULER.PROJECT SITEG2.06