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<br />939 939939TEMPORARY SEDIMENT BASINWITH APPROXIMATELY 24.2ACRES OF CONTRIBUTINGDRAINAGE * 1800 CF/AC =43,560 CF = 1.0 AF OFTEMPORARY STORAGEDWN BY:ISSUE DATE:PROJECT NO.:\\us0242-ppfss01\shared_projects\193806140\LDev\5_DESIGN\1_CAD\3 Plansheets\C-004 REMOVALS AND PRECONSTRUCTION EROSION CONTROL PLAN.dwg 9/21/2023 GRUNKLEE, SAM
<br />DESCRIPTION:DATE:ISSUE NO.:ISSUE NO.:SHEET NO.:SHEET TITLE:9/21/2023 5:02:24 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 DIG( IN FEET )GRAPHIC SCALE1 inch = 80 ft.08016080C-001EXISTING, REMOVALS, ANDPRE-CONSTRUCTIONEROSION CONTROLCITY STANDARD EROSIONCONTROL NOTES1.THE CONTRACTOR SHALL CONDUCT OPERATIONS AND IMPLEMENT MINNESOTA POLLUTIONCONTROL AGENCY (MPCA) BEST MANAGEMENT PRACTICES (BMP) TO CONTROL SITESILTATION AND EROSION INTO DRAINAGE WAYS. THE CONTRACTOR SHALL COMPLY WITH ALLCONDITIONS AND COMPLETION DATES RELATIVE TO ALL PERMITS ISSUED FOR THE WORK TOBE COMPLETED. THE ENGINEER MAY ISSUE A STOP WORK ORDER FOR ALL DEVELOPMENTWORK AND BUILDING CONSTRUCTION FOR NONCOMPLIANCE WITH THESE MEASURES.2.SEQUENCING. ALL SILT FENCE AND OTHER EROSION CONTROL MEASURES SHALL BE IN PLACEAND APPROVED BY ENGINEER PRIOR TO ANY REMOVALS, EXCAVATION OR CONSTRUCTIONAND SHALL BE MAINTAINED UNTIL VIABLE TURF OR GROUND COVER HAS BEEN ESTABLISHEDAND APPROVED BY THE ENGINEER.3.SILT FENCE. THE CONTRACTOR SHALL INSTALL SILT FENCE AT THE LOCATIONS SHOWN ONTHE PLANS AND IN ACCORDANCE WITH THE CITY STANDARD DETAILS. SILT FENCE DAMS ANDINTERIM SUMPS SHALL BE PLACED TO INTERCEPT SILT FROM CONCENTRATED RUNOFF FROMOPEN GRADED AREAS. ADDITIONAL SILT FENCE SHALL BE REQUIRED AS DIRECTED BY THEENGINEER.4.STOCKPILES. ALL STOCKPILE AREAS SHALL HAVE SILT FENCE OR SEDIMENT TRAPPINGSYSTEMS PLACED AROUND THE ENTIRE PERIMETER.5.INLET PROTECTION. THE CONTRACTOR SHALL INSTALL INLET PROTECTION ON ALL EXISTINGSTORM SEWER INLETS IN ACCORDANCE WITH THE CITY STANDARD DETAILS. INLETPROTECTION SHALL ALSO BE PROVIDED ON ALL PROPOSED STORM SEWER INLETSIMMEDIATELY FOLLOWING CONSTRUCTION OF THE INLET. INLET PROTECTION MUST BEINSTALLED IN A MANNER THAT WILL NOT IMPOUND WATER FOR EXTENDED PERIODS OF TIMEOR IN A MANNER THAT PRESENTS A HAZARD TO VEHICULAR OR PEDESTRIAN TRAFFIC.6.TEMPORARY SEDIMENT BASINS. THE CONTRACTOR SHALL INCORPORATE TEMPORARYSEDIMENT BASINS THROUGHOUT THE CONSTRUCTION SITE TO CAPTURE RUNOFF AND SLOWTHE FLOW OF WATER AND ALLOW SEDIMENT TO SETTLE OUT. TEMPORARY SEDIMENT BASINSSHALL BE INSTALLED AS DIRECTED BY THE CITY ENGINEER.7.ROCK CONSTRUCTION ENTRANCE. A ROCK CONSTRUCTION ENTRANCE SHALL BECONSTRUCTED AND MAINTAINED AS SHOWN ON THE PLAN TO REDUCE TRACKING OF SILT ANDDIRT ONTO THE PUBLIC STREETS. A GEOTEXTILE FABRIC SHALL BE PLACED UNDERNEATH THEROCK. THE ROCK SHALL BE PERIODICALLY REPLENISHED TO MAINTAIN THE INTENDEDPERFORMANCE. MUD AND DEBRIS SHALL BE REMOVED OR SCRAPED FROM TIRES ANDVEHICLE UNDERCARRIAGE PRIOR TO LEAVING THE SITE.8.STREET SWEEPING. ALL STREETS USED FOR ACCESS TO THE SITE AND HAUL ROUTES USEDFOR CONSTRUCTION EQUIPMENT AND MATERIAL SUPPLIES SHALL BE CLEANED AT THE ENDOF EACH WORKING DAY. THE CITY OR ENGINEER MAY ORDER ADDITIONAL SWEEPING OF THESTREETS AS DEEMED REQUIRED AT DEVELOPER/CONTRACTOR EXPENSE.9.DEWATERING. EACH EXCAVATION SHALL BE KEPT DRY DURING THE COURSE OF ALL WORKHEREIN, INCLUDING SUBGRADE CORRECTION, PIPE INSTALLATION, STRUCTURECONSTRUCTION AND BACKFILLING, TO THE EXTENT THAT NO DAMAGE FROM HYDROSTATICPRESSURE, FLOATATION OR OTHER DAMAGE RESULTS. ALL EXCAVATIONS SHALL BEDEWATERED TO A DEPTH OF AT LEAST 3 INCHES BELOW THE BOTTOM OF THE CONCRETESLAB OR PIPE TO BE INSTALLED THEREIN. THE CONTRACTOR MAY USE ANY METHOD ORCOMBINATION OF METHODS FOR DEWATERING HE CHOOSES; HOWEVER, ALL DEWATERINGMETHODS AND EQUIPMENT WHICH IN THE OPINION OF THE ENGINEER, ARE INEFFECTIVESHALL BE ABANDONED, IMPROVED, REPLACED OR THERWISE ALTERED TO OBTAIN EFFECTIVEDEWATERING. THE CONTRACTOR SHALL PROVIDE ALL POWER, PUMPS, MATERIALS ANDAPPARATUS NECESSARY, AND SHALL BE RESPONSIBLE FOR DISPOSING OF THE WATERPUMPED FROM THE EXCAVATION IN A MANNER WHICH WILL NOT INTERFERE WITH OTHERWORK WITHIN THE AREA AND NOT TO DAMAGE PUBLIC OR PRIVATE PROPERTY. THECONTRACTOR WILL BE HELD RESPONSIBLE FOR THE CONDITION OF ANY PIPE, CONDUIT,DITCH, CHANNEL OR NATURAL WATERCOURSE UTILIZED FOR DRAINAGE PURPOSES, AND ALLEROSION, SEDIMENT OR OTHER ADVERSE RESULTS OF THEIR USE SHALL BE REPAIRED.10.POSITIVE DRAINAGE AND PROTECTION. THE CONTRACTOR SHALL MAINTAIN POSITIVEDRAINAGE THROUGHOUT THE SITE AT ALL TIMES. LOW POINTS WITHIN AND ALONG ROADWAYSARE EXPRESSLY PROHIBITED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARYDITCHES, PIPING OR OTHER MEANS TO FACILITATE PROPER DRAINAGE DURINGCONSTRUCTION. TO PROTECT PREVIOUSLY GRADED AREAS FROM EROSION, WOOD FIBERBLANKET SHALL BE PLACED IMMEDIATELY ON STEEP SLOPES (3:1 OR GREATER) ANDEMBANKMENTS, PERMANENT AND TEMPORARY PONDS, AND OUTLETS AND OVERFLOWS TOPROTECT THE COMPLETED GRADE AND MINIMIZE SILT IN THE RUNOFF.11.DRAINAGE DITCHES. THE NORMAL WETTED PERIMETER OF ANY TEMPORARY OR PERMANENTDRAINAGE DITCH OR SWALE THAT DRAINS WATER FROM ANY PORTION OF THECONSTRUCTION SITE, OR DIVERTS WATER AROUND THE SITE, MUST BE STABILIZED WITHIN 200LINEARL FEET FROM THE PROPERTY EDGE, OR FROM THE POINT OF DISHARGE INTO ANYSURFACE WATER. STABILIZATION OF THE LAST 200 LINEAL FEET MUST BE COMPLETED WITHIN24 HOURS AFTER CONNECTING TO A SURFACE WATER. STABILIZATION OF THE LAST 200LINEAL FEET MUST BE COMPLETED WITHIN 24 HOURS AFTER CONNECTING TO A SURFACEWATER. STABILIZATION OF THE REMAINING PORTIONS OF ANY TEMPORARY OR PERMANENTDITCHES OR SWALES MUST BE COMPLETE WITHIN 14 DAYS AFTER CONNECTING TO ASURFACE WATER AND CONSTRUCTION IN THAT PORTION OF THE DITCH HAS TEMPORARILY ORPERMANENTLY CEASED. TEMPORARY OR PERMANENT DITCHES OR SWALES THAT ARE BEINGUSED AS A SEDIMENT CONTAINMENT SYSTEM (WITH PROPERLY DESIGNED ROCK DITCHCHECKS, BIO ROLLS, SILT DIKES, ETC.) DO NOT NEED TO BE STABILIZED. THESE AREAS MUSTBE STABILIZED WITHIN 24 HOURS AFTER NO LONGER BEING USED AS A SEDIMENTCONTAINMENT SYSTEM.12.MAINTENANCE AND INSPECTION. EROSION CONTROL MEASURES SHALL BE MAINTAINEDTHROUGHOUT THE CONSTRUCTION AND UNTIL SATISFACTORY ESTABLISHMENT OFPERMANENT GROUND COVER IS OBTAINED. ALL EROSION AND SEDIMENTATION CONTROLMEASURES, AND STORMWATER OUTFALLS MUST BE INSPECTED WEEKLY, AND WITHIN 24HOURS OF THE SITE RECIEVING 0.5 INCHES OF RAIN. REPAIRS MUST BE MADE ON THE SAMEDAY OR FOLLOWING DAY OF THE INSPECTION. UNSATISFACTORY CONDITIONS NOT REPAIREDOR CLEANED UP WITHIN 48-HOURS OF NOTIFICATION SHALL RESULT IN A STOP WORK ORDER,AND/OR SAID WORK SHALL BE COMPLETED AT CONTRACTOR'S EXPENSE.1.SEE SHEET G-002 FOR ADDITIONAL PROJECT NOTES.2.CONSTRUCTION SITE SHALL HAVE STABILIZED EXIT AT ALLTIMES THROUGHOUT THE DURATION OF THE PROJECT.CONTRACTOR IS ULTIMATELY RESPONSIBLE TO PROTECTDOWNSTREAM WATERS FROM CONSTRUCTION RUNOFF.3.UNTRENCHED SILT FENCE OR ORANGE SNOW FENCE MAY BEUSED FOR TREE PROTECTION.4.CONSTRUCTION LIMITS ARE SHOWN OFFSET FROM PROPERTYLINE FOR CLARITY, WHERE APPLICABLE.5.CLEAR AND GRUB AS NEEDED WITHIN LIMITS OF DISTURBANCE.6.EXISTING UTILITY SERVICE LINES MAY NOT BE SHOWN IN THEIRENTIRETY ON PLANS. CONTRACTOR TO VERIFY LOCATIONS OFEXISTING UTILITY SERVICE LINES WITHIN THE LIMITS OFDISTURBANCE AND REMOVE EXISTING INFRASTRUCTURE ASNECESSARY TO INSTALL PROPOSED IMPROVEMENTS.7.CONTRACTOR SHALL EVALUATE LIMITS OF REMOVAL FORPROPOSED UTILITY INSTALLATION. IN THE EVENT THAT CURBAND PAVEMENT ARE IMPACTED IN ADDITION TO THE SIDEWALKCONTRACTOR SHALL REPLACE EXISTING CURB AND PAVEMENTTO MATCH EXISTING CONDITIONS PER CITY STANDARDS ANDREQUIREMENTS AT NO ADDITIONAL COST TO THE OWNER.8.ELECTRICAL SERVICE LINES MAY NOT BE SHOWN WITHINBOULEVARD ROW ON SURVEY. CONTRACTOR TO COORDINATEWITH UTILITY SERVICE PROVIDER AND ENSURE THAT DRYUTILITY SERVICE LINES ARE PROTECTED THROUGHOUTCONSTRUCTION ALONG THE PROPOSED SANITARY ALIGNMENTNOTESCITY STANDARD EROSIONCONTROL NOTES13.REMOVAL. THE CONTRACTOR SHALL REMOVE AND DISPOSE OFALL TEMPORARY EROSION CONTROL MEASURES, STRUCTURESAND DEVICES ONLY AFTER RECEIVING ENGINEER APPROVAL.ALL DEBRIS, STAKES, AND SILTS ALONG SILT FENCES SHALL BEREMOVED AND DISPOSED OFF SITE. THE CONTRACTOR SHALLHAND RAKE SILTED AREAS ALONG THE FENCE LOCATIONS TOPROVIDE A SMOOTH FINAL GRADE AND SHALL RESTORE THEGROUND SURFACE WITH SEED OR SOD, AS REQUIRED, TOMATCH THE FINISHED GRADE TO THE ADJACENT AREA.14.CONCRETE WASHOUT ONSITE. ALL LIQUID AND SOLID WASTESGENERATED BY CONCRETE WASHOUT OPERATIONS MUST BECONTAINED IN A LEAK-PROOF CONTAINMENT FACILITY ORIMPERMEABLE LINER. A COMPACTED CLAY LINER THAT DOESONT ALLOW WASHOUT LIQUIDS TO ENTER GROUND WATER ISCONSIDERED IMPERMEABLE LINER. THE LIQUID AND SOLIDWASTES MUST NOT CONTACT THE GROUND, AND THERE MUSTNOT BE RUNOFF FROM THE CONCRETE WASHOUT OPERATIONSOR AREAS. LIQUID AND SOLID WASTES MUST BE DISPOSED OFPROPERLY AND IN COMPLIANCE WITH MPCA REGULATIONS. ASIGN MUST BE INSTALLED ADJACENT TO EACH WASHOUTFACILITY TO INFORM CONCRETE EQUIPMENT OPERATORS TOUTILIZE THE PROPER FACILITIES.
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