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SOIL MAPIN ACCORDANCE WITH SECTION 21 OF THE GENERAL PERMIT AUTHORIZATION TO DISCHARGE STORMWATERASSOCIATED WITH CONSTRUCTION ACTIVITY UNDER THE NPDES, THE PREPARER OF THIS DOCUMENT WAS TRAINEDUNDER THE UNIVERSITY OF MINNESOTA EROSION AND SEDIMENT CONTROL CERTIFICATION PROGRAM. JACKAMMERMAN’S CERTIFICATION IN DESIGN OF SWPPP IS VALID THROUGH MAY 31, 2024.THE ADJACENT TABLE INDICATES THE ESTIMATED MATERIAL QUANTITIES NECESSARY TO IMPLEMENT THE TEMPORARY ANDPERMANENT EROSION PREVENTION AND SEDIMENT CONTROL BMPS IDENTIFIED IN THIS SWPPP AND ON THE CONSTRUCTIONDRAWINGS. TEMPORARY AND PERMANENT EROSION PREVENTION AND SEDIMENT CONTROL BMPS WILL BE INSTALLED/CONSTRUCTEDWHEN NECESSARY AS CONSTRUCTION ACTIVITIES PROGRESS AND IN ACCORDANCE WITH THE NPDES PERMIT REQUIREMENTS.MAINTAIN AND REPLACE BMPs DURING THE EXECUTION OF THE PROJECT AS REQUIRED TO CONTINUE SWPPP COVERAGE DURINGCONSTRUCTIONNOTE: QUANTITIES ON PLAN SUPERCEDES LISTQUANTITIES IN A DISCREPANCYSWPPP DOCUMENTSINSPECTIONSIMPAIRED WATERS, SPECIAL WATERS, AND WETLANDSESTIMATED BMP QUANTITIES AND INSTALLATION SCHEDULECERTIFICATIONPROJECT NAME: BRIDGEWATER VILLAGE COMMERCIAL DEVELOPMENTPROJECT LOCATION: LAKE ELMO, MINNESOTA. WASHINGTON COUNTY.PROJECT TYPE: COMMERCIAL DEVELOPMENT WITH ASSOCIATED PARKING LOTS, PROPOSED ROADS, BUILDINGS,STORMWATER POND AND INFILTRATION BASIN, AND UTILITIES.TOTAL AREA DISTURBED BY CONSTRUCTION: APPROXIMATELY 13.77 ACRES. THE TOTAL SITE AREA ISAPPROXIMATELY 23.19 ACRES.ESTIMATED CONSTRUCTION DATES: FALL 2023 - FALL 2024CUMULATIVE IMPERVIOUS SURFACE/PERMANENT STORMWATER MANAGEMENT REQUIREMENTS:THE PROPOSED PROJECT RESULTS IN A ±1.87 ACRE NET INCREASE IN IMPERVIOUS SURFACE WITHIN THE LIMITS OFDISTURBANCE. FUTURE DEVELOPMENT IS ANTICIPATED TO CONNECT LINDEN AVENUE TO STILLWATER WAY. THEFOUR COMMERCIAL LOTS WILL BE DEVELOPED INDIVIDUALLY. THE REMAINING AREA WILL BE DEVELOPED INTO VMDRUSE.THE SITE ULTIMATELY DRAINS TO, BUT IS NOT WITHIN 1 MILE OF, A STREAM TO THE SOUTH, WHICH IS NOT LISTED ASAN IMPAIRED WATER.THE PERMANENT STORMWATER SYSTEM WILL CONSIST OF A STORMWATER WET POND FOR IRRIGATION REUSE ANDA STORMWATER INFILTRATION BASIN. THE WET POND WILL DISCHARGE TO THE EXISTING STORM NETWORK TO THESOUTH OF THE SITE. THE INFILTRATION BASIN WILL DISCHARGE TO THE EXISTING STORM NETWORK TO THE SOUTHOF THE SITE. THE STORMWATER ULTIMATELY DISCHARGES TO THE EXISTING STREAM TO THE SOUTH OF THE SITE.PARTY RESPONSIBLE FOR LONG TERM OPERATION AND MAINTENANCE OF THE SITE (OWNER): NORTH SHOREDEVELOPMENT PARTNERSCONTACT: MATT ALEXANDERCONTACT PHONE: 952-324-0535CONTACT EMAIL: MALEXANDER@NORTHSHOREDP.COMPARTY RESPONSIBLE FOR IMPLEMENTATION OF THE SWPPP (CONTRACTOR): TBDCONTRACTOR: TBDCONTRACTOR PHONE: TBDCONTRACTOR EMAIL: TBDCONTRACTOR SHALL PROVIDE A CHAIN OF RESPONSIBILITY WITH ALL OPERATORS ON THE SITE FORINCORPORATION INTO THIS SWPPP DOCUMENT TO ENSURE THAT THE SWPPP WILL BE IMPLEMENTED AND STAY INEFFECT UNTIL THE CONSTRUCTION PROJECT IS COMPLETE (THROUGH FINAL STABILIZATION AND NOT SUBMITTAL).CONTRACTOR SHALL ALSO PROVIDE DOCUMENTATION OF PERSONNEL TRAINING IN ACCORDANCE WITH THE PERMITFOR INCORPORATION INTO THIS SWPPP DOCUMENT AS SOON AS THE PERSONNEL FOR THE PROJECT HAVE BEENDETERMINED. CONTRACTOR IS RESPONSIBLE FOR KEEPING A FINAL SWPPP DOCUMENT, CONTAINING THEINFORMATION REQUIRED ABOVE, AT THE CONSTRUCTION SITE FOR THE DURATION OF THE PROJECT.THE SWPPP IS COMPOSED OF, BUT NOT LIMITED TO, THE BELOW PROJECT DOCUMENTS. THESE DOCUMENTS SHALLBE KEPT ON THE PROJECT SITE AT ALL TIMES THROUGHOUT CONSTRUCTION. THE SWPPP SHALL BE AMENDED BYTHE PERSON RESPONSIBLE TO INCLUDE ANY DOCUMENTS NECESSARY TO ENSURE ADHERENCE TO THE GENERALPERMIT.BRIDGEWATER VILLAGE PROJECT CIVIL CONSTRUCTION DRAWINGS BY STANTEC DATED SEPTEMBER, 2023BRIDGEWATER VILLAGE PROJECT STORMWATER MANAGMENT PLAN BY STANTEC DATED SEPTEMBER, 2023RECORD RETENTION - THE SWPPP, ALL CHANGES TO IT, AND INSPECTION AND MAINTENANCE RECORDS MUST BEKEPT ON-SITE DURING CONSTRUCTION; THE CONSTRUCTION DRAWINGS ARE INCORPORATED HEREIN BYREFERENCE, AND A COPY OF THE PLAN SET SHOULD BE KEPT ON-SITE WITH THE SWPPP RECORDS. THE OWNERMUST RETAIN A COPY OF THE SWPPP ALONG WITH THE FOLLOWING RECORDS FOR THREE (3) YEARS AFTERSUBMITTAL OF THE NOTICE OF TERMINATION:1.ANY OTHER PERMITS REQUIRED FOR THE PROJECT;2.RECORDS OF ALL INSPECTION AND MAINTENANCE CONDUCTED DURING CONSTRUCTION;3.ALL PERMANENT OPERATIONS AND MAINTENANCE AGREEMENTS THAT HAVE BEEN IMPLEMENTED, INCLUDINGALL RIGHT OF WAY, CONTRACT, COVENANTS AND OTHER BINDING REQUIREMENTS REGARDING PERPETUALMAINTENANCE; AND4.ALL REQUIRED CALCULATIONS FOR DESIGN OF THE TEMPORARY AND PERMANENT STORMWATERMANAGEMENT SYSTEMS.THE INSPECTION LOG WILL BE COMPLETED BY THE CONTRACTOR FOR THE CONSTRUCTION SITE.INSPECTOR(S): TBD - TRAINING DOCUMENTATION (PER SECTION 21.2 OF THE PERMIT) WILL BE INCORPORATED INTOTHIS SWPPP AS SOON AS THE PERSONNEL FOR THE PROJECT HAVE BEEN DETERMINED. THE CONTRACTOR WILLMAKE CORRECTIONS OR REPAIRS REQUIRED TO COMPLY WITH THE PERMIT.INSPECTIONS AT THE SITE WILL BE COMPLETED IN ACCORDANCE WITH THE PERMIT AS FOLLOWS: ONCE EVERY 7 DAYS DURING ACTIVE CONSTRUCTION AND, WITHIN 24 HOURS AFTER A RAINFALL EVENT GREATER THAN 0.5 INCHES IN 24 HOURS.1.THE INDIVIDUAL PERFORMING INSPECTIONS MUST BE TRAINED AS REQUIRED BY SECTION 21.3 OF THE PERMIT.TRAINING DOCUMENTATION SHALL BE PROVIDED BY THE CONTRACTOR FOR INCORPORATION INTO THE SWPPP.INSPECTIONS MUST INCLUDE STABILIZED AREAS, EROSION PREVENTION AND SEDIMENT CONTROL BMPS, ANDINFILTRATION AREAS. CORRECTIVE ACTIONS MUST BE IDENTIFIED AND DATE OF CORRECTION MUST BE NOTEDAS IDENTIFIED IN SECTION 11.11 OF THE PERMIT. ANY OFFSITE DISCHARGE MUST BE DOCUMENTED ASIDENTIFIED IN SECTION 11.11 OF THE PERMIT. ANY AMENDMENTS TO THE SWPPP PROPOSED AS A RESULT OFTHE INSPECTION MUST BE DOCUMENTED WITHIN SEVEN (7) CALENDAR DAYS. AN INSPECTION LOG IS ALSOATTACHED; THE INSPECTION LOG AND SWPPP MUST BE KEPT ON-SITE FOR THE DURATION OF THECONSTRUCTION PROJECT.AT A MINIMUM, THE FOLLOWING SHALL BE COMPLETED DURING EACH INSPECTION:-RECORD DATE AND TIME OF INSPECTION.-RECORD RAINFALL RECORDS SINCE THE MOST RECENT INSPECTION.-INSPECT THE SITE FOR EXCESS EROSION AND SEDIMENTATION.-INSPECT THE SITE FOR DEBRIS, TRASH, AND SPILLS.-INSPECT TEMPORARY EROSION AND SEDIMENTATION CONTROL DEVICES.-INSPECT CONSTRUCTION ENTRANCES FOR SEDIMENT TRACKING ONTO PUBLIC STREETS.-RECORD RECOMMENDED REPAIRS AND MODIFICATIONS TO EROSION AND SEDIMENT CONTROLS.-RECOMMEND ANY NECESSARY CHANGES TO THIS SWPPP.-RECORD REPAIRS AND MODIFICATIONS IMPLEMENTED SINCE PREVIOUS INSPECTIONS.-INSPECT THE ADJACENT STREETS AND CURB AND GUTTER FOR SEDIMENT, LITTER, AND CONSTRUCTION DEBRIS.THE GENERAL CONTRACTOR MUST UPDATE THE SWPPP, INCLUDING THE JOBSITE BINDER AND SITE MAPS, TOREFLECT THE PROGRESS OF CONSTRUCTION ACTIVITIES AND GENERAL CHANGES TO THE PROJECT SITE. UPDATESSHALL BE MADE DAILY TO TRACK PROGRESS WHEN ANY OF THE FOLLOWING ACTIVITIES OCCUR: BMP INSTALLATION,MODIFICATION OR REMOVAL, CONSTRUCTION ACTIVITIES (E.G. PAVING, SEWER INSTALLATION, ETC), CLEARING,GRUBBING, GRADING, OR TEMPORARY AND PERMANENT STABILIZATION.THE CONTRACTOR MAY UPDATE OR MODIFY THE SWPPP WITHOUT ENGINEER APPROVAL IN AN EMERGENCYSITUATION TO PREVENT SEDIMENT DISCHARGE OR PROTECT WATER QUALITY. THE CONTRACTOR IS ULTIMATELYRESPONSIBLE TO ENSURE COMPLIANCE WITH THE PERMIT AND PROTECTION OF DOWNSTREAM WATER QUALITY.PRIOR TO ANY SITE DISTURBANCE, AND AS REQUIRED AS CONSTRUCTION PROGRESSES, ANY PERMIT REQUIREDEROSION PREVENTION MEASURES AND THE SEDIMENT CONTROL DEVICES (INLET PROTECTION, CONSTRUCTIONENTRANCE, CULVERT END PROTECTION, EROSION CONTROL BLANKET, SILT FENCE) SHOWN ON THE CONSTRUCTIONDRAWINGS WILL BE INSTALLED AT THE SITE.ALL EXPOSED SOIL AREAS WITHIN THE CONSTRUCTION LIMITS WILL BE STABILIZED WITHIN 7/14 DAYS AFTER THECONSTRUCTION ACTIVITY IN THAT PORTION OF THE SITE HAS TEMPORARILY (WILL NOT RESUME FOR A PERIODEXCEEDING 7 CALENDAR DAYS) OR PERMANENTLY CEASED. STABILIZATION WILL BE INITIATED IMMEDIATELY.EXPOSED SOIL AREAS MUST HAVE TEMPORARY EROSION PROTECTION (SLASH MULCH, EROSION CONTROL BLANKET,SEED) OR PERMANENT COVER YEAR ROUND.CONTRACTOR SHALL IMPLEMENT APPROPRIATE CONSTRUCTION PHASING, VEGETATIVE BUFFER STRIPS,HORIZONTAL SLOPE GRADING, AND OTHER CONSTRUCTION PRACTICES THAT MINIMIZE EROSION WHEN PRACTICAL.THE NORMAL WETTED PERIMETER OF ANY TEMPORARY OR PERMANENT DRAINAGE DITCH THAT DRAINS WATERFROM A CONSTRUCTION SITE, OR DIVERTS WATER AROUND A SITE, MUST BE STABILIZED WITHIN 200 LINEAL FEETFROM THE PROPERTY EDGE, OR FROM THE POINT OF DISCHARGE TO ANY SURFACE WATER. STABILIZATION MUSTBE COMPLETED WITHIN 24 HOURS OF CONNECTING TO A SURFACE WATER. PIPE OUTLETS MUST BE PROVIDED WITHTEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER.SWPPP IMPLEMENTATION, PHASING, AND SEQUENCE OF CONSTRUCTION:BMP AND EROSION CONTROL INSTALLATION SEQUENCE SHALL BE AS FOLLOWS:1.CONSTRUCT STABILIZED CONSTRUCTION ENTRANCE, CONCRETE WASHOUT PIT, AND INSTALL SILT FENCE.2.INSTALL INLET PROTECTION AT EXISTING STORMWATER CULVERTS AND INLETS.3.PREPARE TEMPORARY STORAGE, PARKING, AND PHASING AREAS.4.CONSTRUCT AND STABILIZE DIVERSIONS AND TEMPORARY SEDIMENT TRAPS/BASINS.5.PERFORM CLEARING AND GRUBBING OF THE SITE, IF APPLICABLE.6.PERFORM MASS GRADING, ROUGH GRADE TO ESTABLISH PROPOSED DRAINAGE PATTERNS.7.BEGIN EXCAVATION OF PERMANENT STORMWATER BASIN AREAS. SEE SEQUENCING BELOW FOR ADDITIONALINFORMATION.8.START CONSTRUCTION OF THE BUILDING PAD AND STRUCTURES.9.INSTALL SMALL UTILITIES (GAS, ELECTRIC, PHONE, CABLE, ETC.).10.PAVE CURB AND GUTTER, SIDEWALK, AND PARKING LOT/ DRIVEWAYS.11.TEMPORARILY SEED WITH PURE LIVE SEED THROUGHOUT CONSTRUCTION. DISTURBED AREAS THAT WILL BEINACTIVE FOR 7 (14) DAYS OR MORE AS REQUIRED BY NPDES OR PERMIT.SEDIMENT CONTROL PRACTICES MUST MINIMIZE SEDIMENT FROM ENTERING SURFACE WATERS, INCLUDING CURBAND GUTTER SYSTEMS AND STORM SEWER INLETS. THE FOLLOWING MEASURES WILL BE TAKEN AS SEDIMENTCONTROL PRACTICES IN ORDER TO MINIMIZE SEDIMENTS FROM ENTERING SURFACE WATERS:1.INSTALLATION OF SEDIMENT CONTROL PRACTICES ON ALL DOWN GRADIENT PERIMETERS PRIOR TO LANDDISTURBING ACTIVITIES.2.SILT FENCING, BIOLOGS, OR OTHER SEDIMENT CONTROL SURROUNDING TEMPORARY SOIL STOCKPILES.3.VEHICLE TRACKING BMP AT CONSTRUCTION SITE ENTRANCE/EXIT. STREET SWEEPING SHALL BE PERFORMEDIF VEHICLE TRACKING BMPS ARE NOT ADEQUATE TO PREVENT SEDIMENT TRACKING. TRACKED SEDIMENTMUST BE REMOVED FROM ALL PAVED SURFACES BOTH ON AND OFFSITE WITHIN 24 HOURS OF DISCOVERY PERTHE PERMIT.4.STREET SWEEPING IS NOT TO BE USED AS A PRIMARY BMP FOR SEDIMENT TRACKING. IF SEDIMENT IS TRACKEDOFFSITE, WORK WILL CEASE UNTIL PROPER EROSION CONTROL AND SEDIMENT CONTROL DEVICES AREINSTALLED AND/OR BEING MAINTAINED TO PREVENT TRACKING BEYOND THE SITE'S PERIMETER (CONTAINMENTAREA). ALL STREET SWEEPING MUST BE PERFORMED UTILIZING A PICK-UP SWEEPER. IF NECESSARY WATERWILL ALSO BE USED TO CLEAN UP THE STREETS PRIOR TO BEING SWEPT TO ENSURE THEY ARE FULLYCLEANED.THE FOLLOWING GUIDELINES WILL BE USED TO DETERMINE IF POLLUTION CONTROL DEVICES REQUIREMAINTENANCE, REPAIR, OR REPLACEMENT:-IF SEDIMENT CONTROL DEVICES SUCH AS SILT FENCE ARE FILLED TO 1/3 THE HEIGHT OF THE FENCE, REMOVE ALLSEDIMENT WITHIN 24 HOURS OF DETECTION OR NOTIFICATION.-IF INLET PROTECTION DEVICES APPEAR PLUGGED WITH SEDIMENT, ARE FILLED TO 1/3 CAPACITY, OR HAVESTANDING WATER AROUND THEM, REMOVE THE SEDIMENT AND CLEAN OR REPLACE THE FILTER WITHIN 24 HOURSOF DETECTION OR NOTIFICATION.-IF THE GRAVEL CONSTRUCTION ENTRANCE(S) ARE FILLED WITH SEDIMENT EITHER REPLACE THE ENTRANCE ORADD ADDITIONAL GRAVEL WITH 24 HOURS OF DETECTION OR NOTIFICATION.-IF SEDIMENT FROM THE SITE IS OBSERVED ON ADJACENT STREETS OR OTHER PROPERTIES, THE INSPECTOR SHALLIDENTIFY THE SOURCE AND DISCHARGE LOCATION OF THE SEDIMENT AND INSTRUCT TO IMPLEMENT ADDITIONALEROSION AND SEDIMENT CONTROLS AT THOSE LOCATIONS TO PREVENT FUTURE DISCHARGES.-IF BUILDING MATERIALS, CHEMICALS, OR GENERAL REFUSE IS BEING USED, STORED, DISPOSED OF, OR OTHERWISEMANAGED INAPPROPRIATELY, CORRECT SUCH DEFECTS WITHIN 24 HOURS OF DETECTION OR NOTIFICATION.-IF EXCESSIVE SEDIMENTS OR DEBRIS ARE OBSERVED AT THE FLARED END SECTION OUTFALLS, THE INSPECTORSHALL DETERMINE THE SOURCE AND DISCHARGE LOCATIONS OF SUCH MATERIALS. IF THE DISCHARGE HASOCCURRED ON THE PROPERTY, REMOVE THE SEDIMENTS AND DEBRIS WITHIN 24 HOURS OF NOTIFICATION ANDCORRECT THE SOURCE OF SUCH MATERIALS AS DIRECTED BY THE INSPECTORSOLID WASTE:SOLID WASTE, INCLUDING BUT NOT LIMITED TO, COLLECTED ASPHALT AND CONCRETE MILLINGS, FLOATING DEBRIS,PAPER, PLASTIC, FABRIC, CONSTRUCTION AND DEMOLITION DEBRIS AND OTHER WASTE, INCLUDING ALL TRASHONSITE, MUST BE REGULARLY DISPOSED OF PROPERLY AND MUST COMPLY WITH MPCA DISPOSAL REQUIREMENTS.HAZARDOUS MATERIALS:HAZARDOUS MATERIALS, INCLUDING BUT NOT LIMITED TO OIL, GASOLINE, PAINT AND ANY HAZARDOUS SUBSTANCEMUST BE PROPERLY STORED INCLUDING SECONDARY CONTAINMENTS, TO PREVENT SPILLS, LEAKS OR OTHERDISCHARGE. RESTRICTED ACCESS TO STORAGE AREAS MUST BE PROVIDED TO PREVENT VANDALISM. STORAGE ANDDISPOSAL OF HAZARDOUS WASTE MUST BE IN COMPLIANCE WITH MCPA REGULATIONS.CONSTRUCTION EQUIPMENT/VEHICLES:EXTERNAL WASHING OF TRUCKS AND OTHER CONSTRUCTION VEHICLES MUST BE LIMITED TO A DEFINED AREA OFTHE SITE. RUNOFF MUST BE CONTAINED AND WASTE PROPERLY DISPOSED OF. NO ENGINE DEGREASING ISALLOWED ON SITE. REASONABLE STEPS TO PREVENT THE DISCHARGE OF SPILLED OR LEAKED CHEMICALS SHALL BETAKEN. ADEQUATE SUPPLIES MUST BE AVAILABLE AT ALL TIMES TO CLEAN UP DISCHARGED MATERIALS; CONDUCTFUELING IN A CONTAINED AREA UNLESS INFEASIBLE.CONCRETE WASHOUT AREA:CONCRETE WASHOUT WILL BE PERMITTED ON-SITE; CONTRACTOR SHALL FOLLOW ALL PERMIT REQUIREMENTS FORCONCRETE WASHOUT. THE CONTRACTOR SHALL PROVIDE EFFECTIVE CONTAINMENT FOR ALL LIQUID AND SOLIDWASTES GENERATED BY WASHOUT OPERATIONS. LIQUID AND SOLID WASHOUT WASTES MUST NOT CONTACT THEGROUND AND THE CONTAINMENT MUST BE DESIGNED TO PROHIBIT RUNOFF FROM THE WASHOUTOPERATIONS/AREAS. LIQUID AND SOLID WASTES MUST BE DISPOSED OF PROPERLY AND IN COMPLIANCE WITHMPCA RULES. A SIGN MUST BE INSTALLED ADJACENT TO EACH WASHOUT FACILITY THAT REQUIRES SITEPERSONNEL TO UTILIZE THE PROPER FACILITIES FOR CONCRETE WASHOUT AND DISPOSAL OF WASHOUT WASTES.CONTRACTOR SHALL REVISE SWPPP TO INDICATE WASHOUT LOCATION ONCE THE LOCATION HAS BEENDETERMINED.FERTILIZERS AND LANDSCAPE MATERIALS MUST BE UNDER COVER TO PREVENT THE DISCHARGE OF POLLUTANTSOR PROTECTED BY SIMILARLY EFFECTIVE MEANS DESIGNED TO MINIMIZE CONTACT WITH STORMWATER.PORTABLE TOILETS MUST BE POSITIONED SO THAT THEY ARE SECURE AND WILL NOT BE TIPPED OR KNOCKED OVER.SANITARY WASTE MUST BE DISPOSED OF PROPERLY.POLLUTION PREVENTION MEASURESPROJECT INFORMATIONEROSION AND SEDIMENT CONTROLIMPAIRED WATERS MAPGENERAL SWPPP NOTESDEWATERING IS NOT ANTICIPATED TO BE REQUIRED DURING TRENCHING FOR UTILITY CONSTRUCTION. IN THEEVENT THAT DEWATERING IS NECESSARY CONTRACTOR SHALL COMPLY WITH PERMIT SECTION 10.1 REQUIREMENTSFOR DEWATERING.THIS SWPPP SHALL BE AMENDED BY THE CONTRACTOR IN ACCORDANCE WITH THE PERMIT AS NECESSARY TOINCLUDE ADDITIONAL REQUIREMENTS, TO CORRECT PROBLEMS IDENTIFIED, OR TO ADDRESS SITUATIONS PERSECTION 6.1 OF THE PERMIT.THE PROJECT WILL DISTURB MORE THAN 10 ACRES THAT PROMOTE DRAINAGE TO A COMMON LOCATION,THEREFORE A TEMPORARY SEDIMENT BASIN WILL BE REQUIRED. THIS SWPPP SHALL BE AMENDED BY THECONTRACTOR IN ACCORDANCE WITH THE GENERAL PERMIT TO INCLUDE ADDITIONAL TEMPORARY SEDIMENTATIONBASINS, IF THEY BECOME NECESSARY. BASINS, IF DESIGNED BY THE CONTRACTOR, SHALL ACCOMMODATE NO LESSTHAN 3,600 CUBIC FEET OF LIVE STORAGE PER ACRE OF CONTRIBUTING DRAINAGE AREA. BASIN OUTLETS SHALL BEDESIGNED TO WITHDRAW WATER FROM THE SURFACE OF THE BASIN, PREVENT SHORT-CIRCUITING AND THEDISCHARGE OF FLOATING DEBRIS. BASINS SHALL HAVE A STABILIZED EMERGENCY OVERFLOW LOCATION AND BEDESIGNED TO PREVENT THE DISCHARGE OF POLLUTANTS TO THE EXTENT PRACTICAL.FINAL STABILIZATION:ALL PERVIOUS AREAS DISTURBED BY CONSTRUCTION AS DESIGNATED WILL RECEIVE VEGETATIVE COVERACCORDING TO THE PLANS AND SPECIFICATIONS AND WITHIN THE SPECIFIED VEGETATIVE TIME SCHEDULE. FINALSTABILIZATION WILL OCCUR WHEN THE SITE HAS A UNIFORM VEGETATIVE COVER WITH A DENSITY OF 70% OVER THERESTORED PERVIOUS AREAS. ALL TEMPORARY SYNTHETIC EROSION PREVENTION AND SEDIMENT CONTROL BMPS(SUCH AS SILT FENCE) MUST BE REMOVED AS PART OF THE SITE FINAL STABILIZATION. ALL SEDIMENT MUST BECLEANED OUT OF CONVEYANCES AND TEMPORARY SEDIMENTATION BASINS IF APPLICABLE. NOTICE OFTERMINATION (NOT) MUST BE SUBMITTED WITHIN 30 DAYS OF FINAL STABILIZATION.THIS PROJECT IS NOT LOCATED WITHIN ONE MILE OF AN IMPAIRED WATER. THE PROJECT ULTIMATELY DISCHARGES TOA STREAM THAT IS LOCATED SOUTH OF THE PROJECT LOCATION.THE PROJECT SITE DISCHARGES TO AN INFILTRATION BASIN FOR STORMWATER MANAGEMENT PRIOR TO THE ULTIMATEDISCHARGE POINT ONSITE. THE PROJECT WILL NOT IMPACT WETLANDS.SITE SOILS - SITE SOILS ARE SHOWN ON THIS SHEET. THIS PROJECT IS NOT LOCATED IN A KARST AREA.INFILTRATION BASIN SEQUENCING NOTES1.CONTRACTOR SHALL STAGE CONSTRUCTION APPROPRIATELY AND INSTALL ALL NECESSARY EROSION CONTROLTO PREVENT SEDIMENT WASHING INTO THE INFILTRATION BASIN.2.FINAL GRADING OF THE BASIN SHALL BE ACCOMPLISHED USING LOW-IMPACT EARTH MOVING EQUIPMENT TOPREVENT COMPACTION. SMALL TRACKED DOZERS AND SKID STEERS ARE RECOMMENDED.3.IN THE EVENT THAT SEDIMENT IS INTRODUCED INTO THE INFILTRATION BASIN, THIS MATERIAL WILL NEED TO BEREMOVED PRIOR TO PROCEEDING WITH CONSTRUCTION.4.INFILTRATION BASIN SHALL BE FREE AND CLEAR OF SEDIMENT UPON FINAL COMPLETION OF CONSTRUCTION.5.ALL SLOPES WITHIN PERMANENT STORMWATER SYSTEM (INCLUDING SWALES, BASINS, AND PONDS) SHALL BESTABILIZED WITH A EROSION CONTROL BLANKET.6.THE PROJECT AREA MUST BE STAKED OFF AND MARKED TO KEEP ALL CONSTRUCTION TRAFFIC, EQUIPMENT ANDMATERIAL STOCKPILES OUT OF THE PROPOSED INFILTRATION AREAS.7.INFILTRATION PRACTICES SHALL NOT BE EXCAVATED UNTIL THE CONTRIBUTING DRAINAGE AREAS WITHEXPOSED SOIL HAVE BEEN FULLY STABILIZED AND BITUMINOUS BASE COURSE INSTALLED ON CONTRIBUTINGPAVEMENT AREAS. DIVERT UPLAND DRAINAGE AREAS TO PREVENT RUNOFF FROM ENTERING THE EXCAVATEDCELL OR INTO THE WORK AREA.8.CARE MUST BE TAKEN TO AVOID CONTAMINATION OF INFILTRATION BASIN SOILS WITH SEDIMENT, IN-SITU ORTOPSOIL DURING AND AFTER INSTALLATION. MATERIALS MUST BE SEGREGATED.9.KEEP INFILTRATION SYSTEMS OFF-LINE BY RESTRICTING STORM WATER INFLOW UNTIL VEGETATION IS WELLESTABLISHED IN THE CELL AND ALL UP GRADIENT AREAS HAVE BEEN STABILIZED AND IMPERVIOUS SURFACESCLEARED OF CONSTRUCTION SEDIMENT.10.PROVIDE TOPSOIL AND SEED IN ACCORDANCE WITH THE EROSION CONTROL PLAN, LANDSCAPE PLAN, ANDNPDES PERMIT.DWN BY:ISSUE DATE:PROJECT NO.:\\us0242-ppfss01\shared_projects\193806140\LDev\5_DESIGN\1_CAD\3 Plansheets\C-102 SWPPP 06140.dwg 9/21/2023 GRUNKLEE, SAM
<br />DESCRIPTION:DATE:ISSUE NO.:ISSUE NO.:SHEET NO.:SHEET TITLE:9/21/2023 5:06:00 PM
<br />CLIENT:PROJECT TITLE:CHK'D BY:APP'D BY:CERTIFICATION:N
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<br />N 1 CARLSON PKWY NPLYMOUTH, MN 55447PHONE: 763-479-4200WWW.STANTEC.COMBRIDGEWATER VILLAGE
<br />LAKE ELMO MINNESOTA, WASHINGTON COUNTY193806140SAGMJSJRA09/22/20231008/18/2023 30% SET FOR PRELIMINARY PRICING
<br />109/22/2023 60% DESIGN FOR CITY SUBMITTALWARNING:THE CONTRACTOR SHALL BE RESPONSIBLE FOR CALLING FOR LOCATIONS OF ALL EXISTING UTILITIES. THEY SHALLCOOPERATE WITH ALL UTILITY COMPANIES IN MAINTAINING THEIR SERVICE AND/OR RELOCATION OF LINES.THE CONTRACTOR SHALL CONTACT GOPHER STATE ONE CALL AT 651-454-0002 AT LEAST 48 HOURS IN ADVANCE FORTHE LOCATIONS OF ALL UNDERGROUND WIRES, CABLES, CONDUITS, PIPES, MANHOLES, VALVES OR OTHER BURIEDSTRUCTURES BEFORE DIGGING. THE CONTRACTOR SHALL REPAIR OR REPLACE THE ABOVE WHEN DAMAGED DURINGCONSTRUCTION AT NO COST TO THE OWNER.GOPHER STATE ONE CALLTWIN CITY AREA: 651-454-0002TOLL FREE 1-800-252-1166CALL BEFORE YOU DIGC-104SWPPP
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