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<br />Call 48 Hours before digging
<br />GOPHER STATE ONE CALL
<br />Twin Cities Area 651-454-0002
<br />MN. Toll Free 1-800-252-1166
<br />PROJECT NARRATIVE
<br />OWNER/DEVELOPER
<br />NEW RESOURCES, LLC
<br />630 PROCTOR A VE. NW
<br />ELK RI VER, MN 55330
<br />(763) 441-2383
<br />CONTACT: KEN BEAUDRY
<br />STATE OF MINNESOTA POLLUTION CONTROL AGENCY STORM WATER POLLUTION PREVENTION PLAN (SWPPP) NOTES
<br />• THE PROJECT CONSISTS OF PREPARATION OF EXISTING RESIDENTIAL LOTS
<br />FOR A SINGLE COMMERCIAL SERVICE TRUCK STORAGE/REPAIR FACILITY.
<br />WORK INCLUDES GRADING, SEWER & WATER SERVICE, STORM SEWER AND
<br />PARKING LOT, AND CONSTRUCTION OF NATURAL GAS, ELECTRICAL, CABLE TV
<br />AND COMMUNICATION SYSTEMS.
<br />• REQUIREMENTS OF THE GENERAL PERMIT AUTHORIZATION TO DISCHARGE
<br />STORM WATER ASSOCIATED WITH CONSTRUCTION ACTIVITY UNDER THE
<br />NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (N.P.D.E.S.) / STATE
<br />DISPOSAL SYSTEM (SDS) PERMIT PROGRAM TAKE PRECEDENCE OVER THE
<br />PLANS AND THESE NOTES.
<br />RESPONSIBILITY REQUIREMENTS
<br />• THE PERMANENT STORMWATER MANAGEMENT SYSTEM IS THE PROPOSED
<br />INFILTRATION BASIN WITH AN OVERFLOW OUTLET TO THE CITY STORM
<br />SEWER SYSTEM.
<br />• THE OWNER/DEVELOPER AND CITY WILL HAVE RESPONSIBILITY FOR LONG
<br />TERM OPERATION AND MAINTENANCE OF THE PERMANENT STORM
<br />WATER MANAGEMENT SYSTEM.
<br />• OWNER DEVELOPER REPRESENTATIVES WILL HAVE RESPONSIBILITY FOR
<br />IMPLEMENTATION OF THE SWPPP BEFORE AND DURING CONSTRUCTION.
<br />• THE CONTRACTOR SHALL PROVIDE THE OWNER/DEVELOPER WITH A CHAIN
<br />OF RESPONSIBILITY WITH ALL OPERATORS ON SITE TO ENSURE THAT THE
<br />SWPPP WILL BE IMPLEMENTED AS FOLLOWS:
<br />GRADING CONTRACTOR: PENDING
<br />BUSINESS NAME
<br />KEN BEAUDRY 763-441-2383
<br />CONTACT PERSON TELEPHONE (INCLUDE AREA CODE)
<br />STREETS & UTILITIES CONTRACTOR: PENDING
<br />BUSINESS NAME
<br />KEN BEAUDRY 763-441-2383
<br />CONTACT PERSON TELEPHONE (INCLUDE AREA CODE)
<br />• THE CONTRACTOR SHALL FOLLOW THE IMPLEMENTATION SEQUENCE
<br />AS SHOWN ON THIS SHEET.
<br />• CONTRACTOR TO ADHERE TO ALL REQUIREMENTS OF THE MINNESOTA
<br />POLLUTION CONTROL AGENCY N.P.D.E.S. PERMIT, INCLUDING THE
<br />REQUIREMENT TO MINIMIZE THE AREA DISTURBED BY GRADING AT ANY
<br />GIVEN TIME AND TO COMPLETE TURF RESTORATION WITHIN THE TIME
<br />REQUIRED BY THE PERMIT AFTER COMPLETION OF GRADING OF AN AREA.
<br />• ALL BEST MANAGEMENT PRACTICES (BMP'S) SELECTED SHALL BE
<br />APPROPRIATE FOR THE TIME OF YEAR, SITE CONDITIONS, AND ESTIMATED
<br />DURATION OF USE.
<br />• A COPY OF THESE PLANS MUST BE ON THE JOB SITE WHENEVER
<br />CONSTRUCTION IS IN PROGRESS.
<br />EROSION PREVENTION PRACTICES
<br />• THE CONTRACTOR SHALL IMPLEMENT CONSTRUCTION PHASING,
<br />VEGETATIVE BUFFER STRIPS, HORIZONTAL SLOPE GRADING, AND OTHER
<br />CONSTRUCTION PRACTICES THAT MINIMIZE EROSION. THE LOCATION OF
<br />AREAS NOT TO BE DISTURBED MUST BE DELINEATED (E.G. WITH FLAGS,
<br />STAKES, SIGNS, SILT FENCE, ETC.) ON THE DEVELOPMENT SITE BEFORE
<br />WORK BEGINS.
<br />• ALL EXPOSED SOIL AREAS WITHIN 200 FEET OF A SURFACE WATER OR
<br />ANY STORMWATER CONVEYANCE SYSTEM WHICH IS CONNECTED TO A
<br />SURFACE WATER MUST BE STABILIZED WITHIN 7 DAYS (STEEPER THAN
<br />3:1 SLOPES), 14 DAYS (ALL OTHER AREAS). THESE AREAS INCLUDE
<br />POND SIDE SLOPES, EXPOSED SOIL AREAS WITH A POSITIVE SLOPE TO A
<br />CURB AND GUTTER SYSTEM, STORM SEWER INLET, DRAINAGE DITCH, OR
<br />OTHER SYSTEM THAT DISCHARGES TO A SURFACE WATER.
<br />• THE NORMAL WETTED PERIMETER OF ANY DRAINAGE DITCH MUST BE
<br />STABILIZED WITHIN 200 LINEAL FEET FROM THE PROPERTY EDGE, OR
<br />FROM THE POINT OF DISCHARGE TO ANY SURFACE WATER (WITHIN 24
<br />HOURS OF CONNECTING TO A SURFACE WATER).
<br />• PIPE OUTLETS MUST BE PROVIDED WITH TEMP. OR PERMANENT ENERGY
<br />DISSIPATION WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER.
<br />SEDIMENT CONTROL PRACTICES
<br />• SEDIMENT CONTROL PRACTICES MUST MINIMIZE SEDIMENT ENTERING
<br />SURFACE WATERS. DITCHES AND SEDIMENT BASINS REQUIRE SEDIMENT
<br />CONTROL PRACTICES ONLY AS APPROPRIATE FOR SITE CONDITIONS. IF
<br />DOWN GRADE SYSTEM IS OVERLOADED, ADDITIONAL UPGRADE PRACTICES
<br />MUST BE INSTALLED, AND THE SWPPP MUST BE AMENDED. THERE
<br />SHALL BE NO UNBROKEN SLOPE LENGTH OF GREATER THAN 75 FEET
<br />FOR SLOPES WITH A GRADE OF 3:1 OR STEEPER. SLOPES MAY BE
<br />BROKEN WITH SILT FENCE, ROCK CHECK DAMS, COMPOST SNAKES, OR
<br />OTHER APPROVED METHODS AND/OR AS SHOWN ON THE EROSION
<br />CONTROL PLAN.
<br />• SEDIMENT CONTROL PRACTICES MUST BE ESTABLISHED ON DOWNGRADE
<br />PERIMETERS BEFORE UPGRADE LAND DISTURBING ACTIVITIES BEGIN.
<br />• THE TIMING OF SEDIMENT CONTROL PRACTICES MAY BE ADJUSTED TO
<br />ACCOMMODATE SHORT TERM ACTIVITIES. HOWEVER, THESE PRACTICES
<br />MUST BE INSTALLED BEFORE THE NEXT PRECIPITATION EVENT EVEN IF
<br />THE ACTIVITY IS NOT COMPLETE.
<br />• CONTRACTOR MUST PROTECT ALL STORM DRAIN INLETS BY APPROPRIATE
<br />BMP'S DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR
<br />DISCHARGING TO THE INLET HAVE BEEN STABILIZED.
<br />• TEMPORARY STOCKPILES MUST HAVE SILT FENCE AROUND THE
<br />PERIMETER OF THE BASE OF THE STOCKPILE AND CANNOT BE PLACED IN
<br />SURFACE WATERS, INCLUDING STORM WATER CONVEYANCES SUCH AS
<br />CURB AND GUTTER SYSTEMS, OR CONDUITS OR DITCHES.
<br />• VEHICLE TRACKING MUST BE MINIMIZED BY BMP'S. STREET SWEEPING
<br />MUST BE USED IF SUCH BMP'S ARE NOT ADEQUATE TO PREVENT
<br />SEDIMENT FROM BEING TRACKED ONTO THE STREET. CLEANUP OF
<br />TRACKED DEBRIS MUST BE COMPLETED WITHIN 12 HOURS OF
<br />OCCURRENCE.
<br />• CONTRACTOR MUST INSTALL TEMPORARY (OR PERMANENT)
<br />SEDIMENTATION BASINS WHERE TEN OR MORE ACRES OF DISTURBED SOIL
<br />DRAIN TO A COMMON LOCATION AND/OR AS SHOWN ON THE EROSION
<br />CONTROL PLAN.
<br />DEWATERING AND SURFACE DRAINAGE
<br />• DEWATERING OR ANY TYPE OF SURFACE DRAINAGE THAT MAY HAVE
<br />TURBID OR SEDIMENT LADEN DISCHARGE WATER MUST BE DISCHARGED TO
<br />A SEDIMENT BASIN ON THE PROJECT SITE WHENEVER POSSIBLE. IF THE
<br />WATER CANNOT BE DISCHARGED TO A BASIN PRIOR TO ENTERING THE
<br />SURFACE WATER, IT MUST BE TREATED WITH THE APPROPRIATE BMP'S
<br />SUCH THAT THE DISCHARGE DOES NOT ADVERSELY AFFECT THE
<br />RECEIVING WATER OR DOWNSTREAM LANDOWNERS. THE CONTRACTOR
<br />MUST ENSURE THAT DISCHARGE POINTS ARE ADEQUATELY PROTECTED
<br />FROM EROSION AND SCOUR. THE DISCHARGE MUST BE DISPERSED OVER
<br />NATURAL ROCK RIPRAP, SAND BAGS, PLASTIC SHEETING, OR OTHER
<br />ACCEPTED ENERGY DISSIPATION MEASURES.
<br />• ALL WATER FROM DEWATERING MUST BE DISCHARGED IN A MANNER THAT
<br />DOES NOT CAUSE NUISANCE CONDITIONS, EROSION, OR INUNDATION OF
<br />WETLANDS CAUSING SIGNIFICANT ADVERSE IMPACT TO THE WETLAND.
<br />INSPECTIONS AND MAINTENANCE
<br />• THE CONTRACTOR MUST APPOINT SOMEONE TO INSPECT THE
<br />CONSTRUCTION SITE ONCE EVERY SEVEN DAYS DURING ACTIVE
<br />CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT OF
<br />GREATER THAN 0.5 INCHES IN 24 HOURS. ALL INSPECTIONS MUST BE
<br />RECORDED IN WRITING AND RETAINED PER M.P.C. A. N.P.D.E.S.
<br />REQUIREMENTS. (NOTE: LOCAL JURISDICTION MAY REQUIRE MORE
<br />FREQUENT INTERVAL OF INSPECTION.)
<br />POLLUTION PREVENTION MANAGEMENT MEASURES
<br />• SOLID WASTE MUST BE DISPOSED OF PER M.P.C.A. REQUIREMENTS.
<br />• HAZARDOUS MATERIALS MUST BE STORED AND DISPOSED OF PER M.P.C.A
<br />REGULATIONS.
<br />• EXTERNAL WASHING OF CONSTRUCTION VEHICLES MUST BE LIMITED TO A
<br />DEFINED AREA OF THE SITE. RUNOFF MUST BE CONTAINED AND WASTE
<br />PROPERLY DISPOSED OF. NO ENGINE DEGREASING IS ALLOWED ON SITE.
<br />FINAL STABILIZATION
<br />• THE PERMITEE (THE OWNER/DEVELOPER AND THE CONTRACTOR WHO
<br />SIGNS THE MPCA NPDES/SDS APPLICATION FOR GENERAL STORM -WATER
<br />PERMIT FOR CONSTRUCTION ACTIVITY) MUST ENSURE FINAL STABILIZATION
<br />OF THE SITE. A NOTICE OF TERMINATION MUST BE SUBMITTED WITHIN 30
<br />DAYS OF FINAL STABILIZATION.
<br />• FINAL STABILIZATION CAN BE ACHIEVED IN ONE OF THE FOLLOWING
<br />WAYS:
<br />I.) ALL SOIL DISTURBING ACTIVITIES HAVE BEEN COMPLETED AND MORE
<br />THAN 70% OF THE SURFACE STABILIZED WITH UNIFORM PERENNIAL
<br />VEGETATIVE COVER AND;
<br />A. ALL DITCHES ARE STABILIZED;
<br />B. ALL EROSION BMP'S (SUCH AS SILT FENCE) MUST BE
<br />REMOVED;
<br />C. ALL SEDIMENT HAS BEEN CLEANED OUT FROM CONVEYANCES
<br />AND SEDIMENTATION BASINS THAT ARE TO BE USED AS
<br />PERMANENT BASINS. THE CLEANOUT OF PERMANENT BASINS
<br />MUST BE SUFFICIENT TO RETURN THE BASIN TO DESIGN
<br />CAPACITY.
<br />2.) FOR RESIDENTIAL CONSTRUCTION, TEMPORARY EROSION PROTECTION
<br />AND DOWNGRADE PERIMETER CONTROL FOR INDIVIDUAL LOTS MUST
<br />BE COMPLETED AND THE RESIDENCE HAS BEEN TRANSFERRED TO
<br />THE HOMEOWNER. ADDITIONALLY, THE PERMITTEE MUST DISTRIBUTE
<br />THE MPCA "HOMEOWNER FACTSHEET" TO THE HOMEOWNER.
<br />TRANSFER OF RESPONSIBILITY FOR SWPPP
<br />• FROM SITE GRADING CONTRACTOR TO STREET AND UTILITY CONTRACTOR:
<br />FOLLOWING SITE GRADING COMPLETION, WHEN ALL EROSION CONTROL
<br />MEASURES HAVE BEEN INSTALLED BY THE SITE GRADING CONTRACTOR
<br />AS REQUIRED AND ARE IN WORKING ORDER WITHOUT NEED OF
<br />MAINTENANCE, AND ALL MEASURES HAVE BEEN REVIEWED AND ACCEPTED
<br />BY THE STREET AND UTILITY CONTRACTOR, EXCEPT FOR TURF
<br />RESTORATION WHICH MUST DEMONSTRATE THAT IT IS VIABLY GROWING,
<br />THEN THE STREET AND UTILITY CONTRACTOR WILL EXECUTE AN MPCA
<br />"APPLICATION FOR PERMIT TRANSFER/MODIFICATION FORM" (AVAILABLE
<br />ON-LINE AT WWW.PCA.STATE.MN.US) FOR THE TRANSFERENCE OF
<br />RESPONSIBILITY UNDER THE ORIGINAL NPDES PERMIT ISSUED FOR THE
<br />PROJECT.
<br />2"x2"x4' WOOD GEOTEXTILE FILTER FABRIC
<br />OR METAL "T" POST—A�
<br />STAKES CSD 4' O.C. 10' MINIMUM i
<br />BACKFILL
<br />BURY BOTTOM
<br />EXISTING GROUND 8" OF FABRIC
<br />PROPOSED —
<br />EMBANKMENT
<br />SILT FENCE
<br />EROSION CONTROL SILT FENCE
<br />GENERAL REQUIREMENTS
<br />ARCHITECT
<br />MARTIN WOODY ARCHITECTS, INC.
<br />26405 SMITHTOWN ROAD
<br />SHOREWOOD, MN 55331
<br />(612) 382-2423
<br />�d�Pl�rT�3P1T,lI:iLr1 �1 � 1�I�7�>�
<br />• FOR DISCHARGES TO SPECIAL WATERS OR WETLANDS, REQUIREMENTS OF THE
<br />GENERAL PERMIT AUTHORIZATION TO DISCHARGE STORM WATER ASSOCIATED
<br />WITH CONSTRUCTION ACTIVITY UNDER THE N.P.D.E.S./STATE DISPOSAL
<br />SYSTEM PERMIT PROGRAM APPENDIX A MUST BE FOLLOWED.
<br />• OPERATE TRACK EQUIPMENT (DOZER) UP AND DOWN EXPOSED SOIL
<br />SLOPES ON FINAL PASS, LEAVING TRACK GROOVES PERPENDICULAR TO
<br />THE SLOPE. DO NOT BACK—BLADE. LEAVE A SURFACE ROUGH TO
<br />MINIMIZE EROSION.
<br />• ALL TREES NOT LISTED FOR REMOVAL SHALL BE PROTECTED. DO NOT
<br />OPERATE EQUIPMENT WITHIN THE DRIPLINE, ROOT ZONES OR WITHIN TREE
<br />PROTECTION FENCE AREAS.
<br />• WHEREVER POSSIBLE, PRESERVE THE EXISTING TREES, GRASS AND OTHER
<br />VEGETATIVE COVER TO HELP FILTER RUNOFF.
<br />• ESTABLISH A PERMANENT VEGETATIVE COVER OVER ALL EXPOSED SOILS
<br />WHERE LAND IS COMING OUT OF AGRICULTURAL PRODUCTION. PLANT AS
<br />SOON AS POSSIBLE TO ESTABLISH DENSE GRASS FILTER PRIOR TO
<br />CONSTRUCTION AND TO MINIMIZE WEED GROWTH.
<br />BMP'S REFER TO EROSION AND SEDIMENT CONTROL PRACTICES DEFINED
<br />IN THE MPCA PROTECTING WATER QUALITY IN URBAN AREAS AND THE
<br />MINNESOTA CONSTRUCTION SITE EROSION AND SEDIMENT CONTROL
<br />PLANNING HANDBOOK.
<br />• ALL EROSION AND SEDIMENT CONTROL FACILITIES (BMP'S) SHALL BE
<br />INSTALLED AND IN OPERATION PRIOR TO LAND DISTURBANCE ACTIVITIES.
<br />SOME EROSION CONTROLS SUCH AS CHECK DAMS AND TEMPORARY
<br />SILT PONDS MAY BE INSTALLED AS GRADING OCCURS IN THE
<br />SPECIFIC AREA. THEY SHALL BE MAINTAINED UNTIL CONSTRUCTION
<br />IS COMPLETED AND THE POTENTIAL FOR EROSION HAS PASSED.
<br />• THE BMP'S SHOWN ON THE PLANS ARE THE MINIMUM REQUIREMENTS FOR
<br />THE ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES
<br />AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE PERMITTEE
<br />SHALL ANTICIPATE THAT MORE BMP'S WILL BE NECESSARY TO ENSURE
<br />EROSION AND SEDIMENT CONTROL ON THE SITE. DURING THE COURSE
<br />OF CONSTRUCTION, IT IS THE RESPONSIBILITY OF THE PERMITTEE TO
<br />ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY
<br />CONSTRUCTION ACTIVITIES AND/OR CLIMATIC EVENTS AND TO PROVIDE
<br />ADDITIONAL BMP'S OVER AND ABOVE THE MINIMUM REQUIREMENTS SHOWN
<br />ON THE PLANS THAT MAY BE NEEDED TO PROVIDE EFFECTIVE
<br />PROTECTION OF WATER AND SOIL RESOURCES.
<br />• SLOPES AT 3:1 OR STEEPER, AND/OR WHERE INDICATED ON THE PLANS
<br />SHALL BE SEEDED AND HAVE AN EROSION CONTROL BLANKET TYPE 3
<br />INSTALLED OR MAY BE HYDROSEEDED WITH TACKIFER MULCH.
<br />• ALL CONSTRUCTION ENTRANCES SHALL BE SURFACED WITH WASHED ROCK
<br />ACROSS FULL WIDTH FROM ENTRANCE POINT TO 50 FEET INTO THE
<br />CONSTRUCTION ZONE.
<br />• INSTALL PERIMETER SILT FENCE AROUND THE DEVELOPMENT ON ALL
<br />DOWN GRADIENTS AND AROUND ALL WETLANDS PRIOR TO ANY
<br />CONSTRUCTION.
<br />• TEMPORARY SEED SHALL BE MNDOT MIX 150 0 40 LBS. PER ACRE OR
<br />APPROVED EQUAL. MULCH SHALL BE MNDOT TYPE I(CLEAN OAT STRAW)
<br />CSD 2 TONS PER ACRE AND DISK ANCHORED IN PLACE OR APPROVED
<br />EQUAL, INSTALLED TO MINIMUM 90% COVERAGE OF THE SURFACE AREA
<br />DISTURBED OR HYDRAULIC SOIL STABILIZER TYPE 5 MNDOT 3884.
<br />• PERMANENT TURF RESTORATION IS IN ACCORDANCE WITH THE LANDSCAPE
<br />PLAN BY OTHERS.
<br />• IMMEDIATELY FOLLOWING SITE GRADING OPERATIONS AND PRIOR TO THE
<br />INSTALLATION OF UTILITIES, THE ENTIRE SITE (EXCEPT ROADWAYS) SHALL
<br />HAVE BEEN SEEDED AND MULCHED AND SILT FENCE SHALL HAVE BEEN
<br />INSTALLED AROUND ALL PONDS.
<br />• ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE
<br />PROPERLY DISPOSED OF WITHIN THIRTY (30) DAYS AFTER FINAL SITE
<br />STABILIZATION IS ACHIEVED OR AFTER THE TEMPORARY MEASURES ARE
<br />NO LONGER NEEDED.
<br />• ALL BMP ITEMS AND QUANTITIES ARE CONTAINED WITHIN THE BID
<br />PROPOSAL CONTAINED IN THE PROJECT MANUAL (SPECIFICATIONS) FOR
<br />THIS PROJECT AND ARE INCORPORATED HERE -IN BY REFERENCE.
<br />CIVIL ENGINEER
<br />OLIVER SURVEYING & ENGINEERING, INC.
<br />580 DODGE AVENUE
<br />ELK RIVER, MINNESOTA 55330
<br />PHONE.- (763) 441-2072
<br />FAX. • (763) 441-5665
<br />CONTACT.- ROSS D. ABEL, PE
<br />SURVEYOR,
<br />OLIVER SURVEYING & ENGINEERING, INC.
<br />580 DODGE AVENUE
<br />ELK RIVER, MN 55330
<br />PHONE. (763) 441-2072
<br />CONTACT. LYNN CASWELL, LS
<br />DEVELOPMENT SUMMARY Lot 1, Block 1
<br />TOTAL PARCEL AREA: 70,933 Sq.Ft. L63 Ac.
<br />TOTAL DISTURBED AREA = 1.56 ACRES
<br />TOTAL AREA FOR TURF RESTORATION = 0.16 ACRES
<br />EXISTING IMPERVIOUS AREA = 0.22 ACRES
<br />NEW IMPERVIOUS AREA = 1.18 ACRES
<br />LOCATION: LAT. 45.3086; LONG. —93.5779
<br />SPECIAL WATERS SEARCH 2/27/2017
<br />MISSISSIPPI RIVER—FECAL COLIFORM; FISHES BIOASSESSMENTS
<br />MERCURY IN FISH TISSUE.
<br />LOWER ORONO—MERCURY IN FISH TISSUE; NUTRIENT EUTROPHICATION.
<br />MISSISSIPPI RIVER—ORVW SCENIC AND RECREATIONAL.
<br />PERMIT I.D. NUMBER: Pending
<br />ISSUED: Pending
<br />IMPLEMENTATION SEQUENCE
<br />I. INSTALL STABILIZED CONSTRUCTION ENTRANCE
<br />2. INSTALL PERIMETER SEDIMENT CONTROL DEVICES (SILT
<br />FENCE)
<br />3. CONSTRUCT STORMWATER INFILTRATION AREAS
<br />5. COMPLETE SITE GRADING
<br />6. STABILIZE DENUDED AREAS AND STOCKPILES WITHIN
<br />TIMEFRAME LISTED IN EROSION PREVENTION PRACTICES
<br />7. INSTALL UTILITIES, STORM SEWER, STORM DRAIN INLET
<br />PROTECTION, CURB & GUTTER, & PAVING
<br />8. WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND
<br />THE SITE STABILIZED, REMOVE ACCUMULATED SEDIMENT
<br />FROM INFILTRATION AREAS, REMOVE SEDIMENT CONTROL
<br />BMP'S, AND RESEED ANY AREAS DISTURBED BY THEIR
<br />REMOVAL.
<br />UNIVERSITY OF MINNESOTA
<br />Ra, @�
<br />Design of Construcfl PP (May 31 2419)
<br />IVIIIUUL ypu
<br />Geotextile Separator
<br />ROCK CONSTRUCTION ENTRANCE (E-04)
<br />Sec. 33, T. 33, R. 26
<br />Elk River, Minnesota
<br />No Scale
<br />�k I
<br />School I Street
<br />VICINITY MAP
<br />EROSION CONTROL SCHEDULE
<br />1. IMMEDIATELY FOLLOWING GRADING OF SLOPES 3:1 OR GREATER,
<br />SLOPES MUST BE STABILIZED WITH WOOD FIBER BLANKET (OR
<br />OTHER METHOD APPROVED BY THE ENGINEER) OVER APPROVED
<br />SEED MIXTURE AND A MINIMUM OF 4" TOPSOIL
<br />2. ALL EROSION CONTROL INSTALLATIONS SHALL REMAIN IN PLACE
<br />AND BE MAINTAINED IN GOOD CONDITION BY THE CONTRACTOR
<br />UNTIL THE SITE HAS BEEN RE -VEGETATED, AT WHICH TIME IT
<br />SHALL BE REMOVED. FOR PROPOSED PAVED SURFACE AREAS, THE
<br />CONTRACTOR MAY REMOVE NECESSARY SILT FENCING TO
<br />CONSTRUCT ROADWAYS WHILE MAINTAINING ADEQUATE EROSION
<br />CONTROL IN ADJACENT AREAS.
<br />3. SUFFICIENT TOPSOIL SHALL BE STOCKPILED TO ALLOW FOR THE
<br />REPLACEMENT OF A MINIMUM OF 4" OF TOPSOIL FOR DISTURBED
<br />AREAS TO BE RE -VEGETATED.
<br />4. THE CONTRACTOR SHALL SCHEDULE SITE GRADING, UTILITY
<br />INSTALLATION AND ROADWAY CONSTRUCTION SO THAT THE
<br />GENERAL SITE CAN BE MULCHED AND RE -SEEDED SOON AFTER
<br />DISTURBANCE. ALL DISTURBED AREAS SHALL BE SEEDED AND
<br />MULCHED WITHIN 14 DAYS AFTER COMPLETION OF FINAL GRADING
<br />OR AFTER 14 DAYS OF GRADING INACTIVITY.
<br />EROSION CONTROL MAINTENANCE PROGRAM
<br />1. INSPECT SILT FENCES IMMEDITATELY AFTER EACH RAINFALL AND
<br />AT LEAST DAILY DURING A PROLONGED RAINFALL. IMMEDIATELY
<br />REPAIR FAILED OR FAILING SILT FENCE.
<br />2. SEDIMENT REMOVAL -SEDIMENT DEPOSITS SHOULD BE REMOVED
<br />AFTER EACH STORM EVENT. THEY MUST BE REMOVED WHEN
<br />DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE
<br />BARRIER.
<br />3. REPLACEMENT -FABRIC SHALL BE REPLACED PROMPTLY WHEN IT
<br />DECOMPOSES OR BECOMES INEFFECTIVE BEFORE THE BARRIER IS
<br />NO LONGER NECESSARY.
<br />ANY SEDIMENT REMAINING IN PLACE AFTER THE SILT FENCE OR
<br />FILTER FABRIC IS NO LONGER REQUIRED SHALL BE DRESSED TO
<br />CONFORM WITH THE EXISTING GRADE, PREPARED AND SEEDED
<br />WITH THE APPROPRIATE SEED MIX, AS DIRECTED BY THE
<br />ENGINEER.
<br />4. IN TEK)S6 AREAS WPIDRB WOODFIBEIR BLANKET OR OTIBIR SLOPE
<br />STABILIZATION METHOD HAS FAILED, THE SLOPE WALL BE RE-ESTAB USIM,
<br />SEED ABD TOPSOIL REPLACED, AND ADDMONAL SLOPE TREATMENT
<br />INSTALLED.
<br />DEFLECTOR PLATE
<br />OVERFLOW — CENTER OF FILTER ASSEMBLY
<br />OVERFLOW ® — TOP OF CURB BOX
<br />10" FILTER ASSEMBLY
<br />CG -23 HIGH—FLOW
<br />HIGH—FLOW FABRIC
<br />Material:
<br />I. The Road Drain—Curb & Gutter model consists of a reusable, open topped receptacle that
<br />sets inside the strom sewer grate. An incorporation rear deflector plate is connected
<br />to the receptacle directing the water into the basin for filtration.
<br />2. The Road Drain—Curb & Gutter model has a replaceable filter cartridge.
<br />3. The Filter media shall meet all local specifications for inlet protection.
<br />Maintenance:
<br />I. Check Filter media after each rain event. Clean or replace if sediment clogs filter.
<br />2. Remove sediment and debris from the receptacle after each rain event.
<br />INLET PROTECTION —
<br />WIMCO (MODEL CG23) OR APPROVED EQUAL
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