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<br />INSTALL INLET PROTECTION
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<br />BENCHMARKS
<br />1. Top Nut of Hydrant located approx.
<br />120 ft. northwesterly northwest corner
<br />of the existing building, as shown.
<br />Elevation = 932.85 ft.
<br />2. Top Nut of Hydrant located at the
<br />southeast corner of 140th Street N.
<br />and Fenway Boulevard N.
<br />Elevation = 934.51 ft.
<br />GENERAL INFORMATION
<br />MINNESOTA'S CONSTRUCTION STORMWATER PERMIT IS AN EXTENSION OF THE NATIONAL
<br />POLLUTION DISCHARGE ELIMINATION SYSTEM STORMWATER PROGRAM, WHICH IS PART OF THE
<br />FEDERAL CLEAN WATER ACT. REGULATED PARTIES MUST DEVELOP A STORMWATER
<br />POLLUTION PREVENTION PLAN (SWPPP). THE SWPPP PROVIDES INFORMATION ON THE
<br />EXISTING AND PROPOSED SITE CONDITIONS, CONTROL MEASURES FOR STORMWATER
<br />POLLUTION PREVENTION BEFORE, DURING AND AFTER CONSTRUCTION, INSPECTION,
<br />MAINTENANCE AND INFORMATION RELATED TO THE PERMANENT STORMWATER MANAGEMENT
<br />SYSTEM. THE SWPPP SHALL BE KEPT ON SITE AT ALL TIMES DURING ACTIVE
<br />CONSTRUCTION.
<br />PROJECT INFORMATION
<br />PROJECT NAME: SCHWIETERS BUILDING 7.
<br />PROJECT LOCATION: HUGO, WASHINGTON COUNTY, MINNESOTA
<br />PROJECT OWNER: VICTOR LAND HOLDINGS, LLC.
<br />RESPONSIBLE PARTIES
<br />THE OWNER MUST IDENTIFY A PERSON KNOWLEDGEABLE AND EXPERIENCED IN THE
<br />APPLICATION OF EROSION PREVENTION AND SEDIMENT CONTROL BMP'S WHO WILL OVERSEE
<br />THE IMPLEMENTATION OF THE SWPPP, AND THE INSTALLATION, INSPECTION AND
<br />MAINTENANCE OF THE EROSION PREVENTION AND SEDIMENT CONTROL BMP'S.
<br />EXISTING SITE CONDITIONS
<br />THE SITE IS LOCATED IN THE SOUTHWEST QUADRANT OF THE INTERSECTION OF FENWAY
<br />BOULEVARD N AND 140TH STREET N IN HUGO, WASHINGTON COUNTY, MINNESOTA. THE LOT
<br />IS BOUNDED ON THE NORTH BY RIGHT OF WAY FOR A FUTURE EXTENSION OF 140TH
<br />STREET N, ON THE EAST BY BY AN EXISTING STORMWATER POND AND FILTRATION BASIN,
<br />ON THE SOUTH BY THE EXISTING SCHWIETERS BUILDING, AND ON THE WEST BY AN PARK
<br />LAND OWNED BY THE CITY OF HUGO AND AN EXISTING FILTRATION BASIN.
<br />THE PROPOSED CONSTRUCTION SITE WILL BE AN ADDITION TO THE ROY MOLITOR FOURTH
<br />ADDITION PLAT, WHICH CONSISTS OF THE EXISTING SCHWIETERS CAMPUS, AND IS LOCATED
<br />IN THE NORTHWEST CORNER OF THE PLAT.
<br />THE CONSTRUCTION SITE IS MOSTLY FLAT WITH AN ELEVATION AROUND 930-931. THERE IS
<br />A STEEP SLOPE ON THE WESTERN BOUNDARY LINE OF THE ROY MOLITOR FOURTH ADDITION
<br />PLAT, WHICH FLOWS INTO THE EXISTING FILTRATION BASIN. THE MAJORITY OF THE
<br />STORMWATER FROM THE SITE DRAINS OVERLAND TO THE EXISTING EXISTING FILTRATION
<br />BASIN TO THE WEST. THE REMAINING STORMWATER FLOWS OVERLAND TO THE EXISTING
<br />PRETREATMENT POND AND FILTRATION BASIN TO THE EAST.
<br />PROPOSED SITE CONDITIONS
<br />VICTOR LAND HOLDINGS, LLC PLANS ON DEVELOPING THE CONSTRUCTION SITE INTO AN
<br />ADDITIONAL SCHWIETERS MANUFACTURING WAREHOUSE WITH ASSOCIATED PARKING AND
<br />DRIVE AISLES. DURING CONSTRUCTION, APPROXIMATELY 2.2 ACRES WILL BE DISTURBED.
<br />THE PROPOSED CONSTRUCTION WILL RESULT IN A NET INCREASE IN IMPERVIOUS SURFACE
<br />OF APPROXIMATELY 1.41 ACRES.
<br />STORMWATER FROM THE SITE WILL BE COLLECTED IN PROPOSED STORM SEWER AND ROUTED
<br />THROUGH EXISTING STORM SEWER TO THE EXISTING LINED PRETREATMENT POND. THE
<br />PRETREATMENT POND WILL DISCHARGE TO THE ADJACENT EXISTING FILTRATION BASIN &
<br />WETLAND AND ULTIMATELY OFFSITE TO THE EAST THROUGH EXISTING STORM SEWER.
<br />STORMWATER OUTSIDE OF THE CONSTRUCTION SITE WILL DRAIN AS IT DOES IN EXISTING
<br />CONDITIONS.
<br />THE EXISTING PRETREATMENT POND TO THE SOUTH OF THE FILTRATION BASIN LOCATED IN
<br />OUTLOT A WILL BE EXPANDED TO ACCOMMODATE THE INCREASE OF IMPERVIOUS SURFACE,
<br />WHILE REMAINING IN COMPLIANCE WITH THE EXISTING STORMWATER MANAGEMENT PLAN,
<br />WHICH WAS PRODUCED BY AMI DURING THE ORIGINAL DEVELOPMENT OF THE ROY MOLITOR
<br />FOURTH ADDITION PLAT.
<br />ELEMENT MATERIALS TECHNOLOGY CONDUCTED SOIL BORINGS FOR THE PROPOSED
<br />CONSTRUCTION SITE IN FEBRUARY OF 2018. THE SOIL BORINGS SHOW 2 FEET OF SILTY
<br />SAND TOPSOIL BELOW THE SURFACE WITH SILTY SAND AND POORLY GRADED SAND WITH
<br />SILT BELOW THE TOPSOIL. THESE SOILS HAVE A USCS RATING OF "SP" & "SM" AND
<br />GENERALLY FALL WITHIN THE HYDROLOGIC SOIL GROUP (HSG) "A".
<br />WETLAND CONSIDERATIONS
<br />THE EXISTING WETLAND TO THE EAST OF THE CONSTRUCTION SITE WILL BE PROTECTED
<br />THROUGHOUT CONSTRUCTION. NO WETLANDS IMPACTS ARE PROPOSED FOR THE PROJECT.
<br />STORMWATER RECEIVING WATERS
<br />STORMWATER FROM THE SITE WILL DISCHARGE TO EGG LAKE.
<br />SPECIAL/IMPAIRED WATER CONSIDERATIONS
<br />CLEARWATER CREEK IS CONSIDERED AN IMPAIRED WATER AND IS LOCATED WITHING 1 MILE
<br />OF THE PROPOSED CONSTRUCTION SITE.
<br />ADDITIONAL BMPS REQUIRED INCLUDE: SOIL STABILIZATION WITHIN 7 DAYS AFTER
<br />CONSTRUCTION ACTIVITY HAS CEASED, TEMPORARY SEDIMENTATION BASIN FOR COMMON
<br />DRAINAGE AREAS OF 5 ACRES OR MORE, AND A REQUIRED WATER QUALITY VOLUME OF 1
<br />INCH OF RUNOFF FROM NEW IMPERVIOUS SURFACES.
<br />STORMWATER MANAGEMENT PLAN
<br />THE PROPOSED LOT WAS ORIGINALLY INCORPORATED INTO THE STORMWATER MANAGEMENT
<br />PLAN PREPARED BY AMI CONSULTING ENGINEERS P.A., DATED 6/8/18, FOR THE ORIGINAL
<br />SCHWIETERS EXPANSION. THE ORIGINAL SCHWIETERS EXPANSION PROJECT PROPOSED THE
<br />CONSTRUCTION OF THE NOW EXISTING CENTRALIZED INDUSTRIAL BUILDING, PARKING AREA
<br />AND PAVED YARD/LOADING AREA, WHILE ALSO PROVIDING STORMWATER MANAGEMENT FOR
<br />THE EXISTING SCHWIETERS ADDITION OFFICE/WAREHOUSE, AND THE PROPOSED
<br />MANUFACTURING BUILDING 7.
<br />THE PROPOSED IMPERVIOUS SURFACE AREA FOR THE CONSTRUCTION SITE EXCEEDS THE
<br />ANTICIPATED IMPERVIOUS SURFACE AREA IN THE STORMWATER MANAGEMENT PLAN. TO
<br />ACCOMMODATE FOR THE INCREASED IMPERVIOUS SURFACES, THE EXISTING POND IN OUTLOT
<br />A WILL BE EXPANDED. TO REMAIN IN COMPLIANCE WITH THE ANTICIPATED IMPERVIOUS
<br />SURFACE FROM THE STORMWATER MANAGEMENT PLAN, THE CONSTRUCTION SITE IMPERVIOUS
<br />WOULD NEED TO BE LIMITED TO 1.27 ACRES. THE PROPOSED CONSTRUCTION SITE HAS A
<br />TOTAL IMPERVIOUS SURFACE AREA OF 1.36 ACRES. TO MEET THE REQUIRED POND
<br />TREATMENT VOLUME WITH THE ANTICIPATED 1.27 IMPERVIOUS ACRES, THE VOLUME OF THE
<br />POOL WOULD NEED TO BE 0.244 ACRE-FEET. THE REQUIRED POND TREATMENT VOLUME
<br />WITH THE PROPOSED 1.36 IMPERVIOUS ACRES, THE VOLUME OF THE POND NEEDS TO BE
<br />0.256 ACRE-FEET. THE EXISTING POND WILL BE EXPANDED APPROXIMATELY 0.012
<br />ACRE-FEET TO ACCOMMODATE FOR THE ADDED PROPOSED IMPERVIOUS.
<br />PRIOR TO START OF CONSTRUCTION
<br />THE FOLLOWING STORMWATER POLLUTION PREVENTION MEASURES SHALL BE IMPLEMENTED
<br />PRIOR TO CONSTRUCTION. REFER TO GRADING AND EROSION CONTROL PLANS FOR
<br />LOCATIONS.
<br />1. SILT FENCE
<br />SILT FENCE SHALL BE INSTALLED AT THE LIMIT OF GRADING ON ANY FILL SLOPE.
<br />ADDITIONAL SILT FENCE MAY BE REQUIRED IN CUT SLOPE AREAS. SILT FENCE SHALL
<br />ALSO BE INSTALLED AROUND ANY INFILTRATION/FILTRATION PRACTICE.
<br />2. ROCK CONSTRUCTION ENTRANCE
<br />ROCK CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE FIELD ENTRANCES TO
<br />THE SITE.
<br />3. CATCH BASINS
<br />ALL CATCH BASINS SHALL BE PROTECTED WITH INLET PROTECTION DEVICES APPROVED
<br />BY THE LOCAL GOVERNING UNIT. THESE SHALL INCLUDE, BUT ARE NOT LIMITED
<br />TO, WIMCO PROTECTION DEVICES, INFRASAFE PROTECTION DEVICES, FILTER FABRIC, BIO
<br />ROLLS AND STRAW BALES.
<br />DURING CONSTRUCTION
<br />THE FOLLOWING STORMWATER POLLUTION PREVENTION MEASURES SHALL BE IMPLEMENTED
<br />DURING CONSTRUCTION. REFER TO GRADING AND EROSION CONTROL PLANS FOR LOCATIONS.
<br />1. PHASED GRADING
<br />TO THE EXTENT POSSIBLE, GRADING SHALL BE PHASED TO MINIMIZE THE AMOUNT OF
<br />DISTURBED AREAS DURING SITE CONSTRUCTION.
<br />2. TRACKED SEDIMENT
<br />ANY SEDIMENT TRACKED FROM THE SITE ONTO THE STREET SHALL BE REMOVED
<br />IMMEDIATELY UPON DETECTION. THE ROCK CONSTRUCTION ENTRANCE SHALL BE
<br />INSPECTED AND REPAIRED IF INUNDATED WITH SEDIMENT.
<br />3. STOCKPILES
<br />STOCKPILES SHALL BE PLACED IN AN AREA THAT WILL MINIMIZE THE NEED FOR
<br />RELOCATION. IF A STOCKPILE WILL REMAIN IN PLACE FOR AN EXTENDED PERIOD OF
<br />TIME, STABILIZATION MEASURES SHALL BE IMPLEMENTED, INCLUDING BUT NOT LIMITED TO,
<br />SEEDING AND SILT FENCING. TEMPORARY STOCKPILES MUST HAVE SILT FENCE OR OTHER
<br />EFFECTIVE SEDIMENT CONTROLS AND CANNOT BE PLACED IN SURFACE WATERS,
<br />INCLUDING STORMWATER CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS, CONDUITS
<br />OR DITCHES.
<br />4. TOPSOIL
<br />UPON GRADING COMPLETION, A MINIMUM OF 4 INCHES OF TOPSOIL SHALL BE PLACED
<br />OVER ALL DISTURBED AREAS, EXCLUDING PROPOSED STREETS AND PARKING AREAS.
<br />5. RESTORATION
<br />ALL DISTURBED AREAS NOT ACTIVELY WORKED SHALL BE RESTORED WITH SEED AND
<br />MULCH, EROSION CONTROL BLANKET AND/OR SOD WITHIN 7 DAYS.
<br />6. SLOPES
<br />IN ORDER TO MAINTAIN SHEET FLOW AND MINIMIZE RILLS AND/OR GULLIES, THERE SHALL
<br />BE NO UNBROKEN SLOPE LENGTH OF GREATER THAN 75 FEET FOR SLOPES WITH A
<br />GRADE OF 3:1 OR STEEPER.
<br />7. DRAINAGE DITCHES
<br />THE NORMAL WETTED PERIMETER OF ANY TEMPORARY OR PERMANENT DRAINAGE DITCH
<br />THAT DRAINS WATER FROM THE SITE, OR DIVERTS WATER AROUND THE SITE, MUST BE
<br />STABILIZED WITHIN 200 LINEAL FEET FROM THE PROPERTY EDGE, OR FROM THE POINT
<br />OF DISCHARGE TO ANY SURFACE WATER. STABILIZATION MUST BE COMPLETED WITHIN
<br />24 HOURS OF CONNECTING TO A SURFACE WATER.
<br />8. PIPE OUTLETS
<br />PIPE OUTLETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION
<br />WITHIN 24 HOURS OF CONNECTION TO A SURFACE WATER.
<br />9. CATCH BASINS
<br />ALL CATCH BASINS SHALL BE PROTECTED WITH INLET PROTECTION DEVICES APPROVED
<br />BY THE LOCAL GOVERNING UNIT. THESE SHALL INCLUDE, BUT ARE NOT LIMITED TO,
<br />WIMCO PROTECTION DEVICES, INFRASAFE PROTECTION DEVICES, FILTER FABRIC, BIO ROLLS
<br />AND STRAW BALES.
<br />10. DUST
<br />CONSTRUCTION DUST SHALL BE CONTAINED TO THE EXTENT POSSIBLE. IF THE SITE
<br />BECOMES EXCESSIVELY DUSTY, APPROPRIATE MEASURES SHALL BE TAKEN TO REDUCE
<br />DUST BEING TRANSPORTED FROM THE SITE. DUST CONTROL MEASURES INCLUDE, BUT
<br />ARE NOT LIMITED TO, WATERING AND CALCIUM CHLORIDE APPLICATION.
<br />11. DEWATERING
<br />DEWATERING ACTIVITIES SHALL BE CONDUCTED WITH AND APPROVED BY THE LOCAL
<br />GOVERNING UNIT. IF THERE WILL BE ANY DEWATERING OR BASIN DRAINING THAT MAY
<br />HAVE TURBID OR SEDIMENT LADEN DISCHARGE, THE WATER MUST BE DISCHARGED TO A
<br />TEMPORARY OR PERMANENT SEDIMENTATION BASIN ON THE PROJECT SITE WHENEVER
<br />POSSIBLE. APPROPRIATE BMPS SHALL BE USED FOR EROSION AND SEDIMENT CONTROL
<br />AND ENERGY DISSIPATION.
<br />12. CONSTRUCTION MATERIALS AND DEBRIS
<br />CONSTRUCTION MATERIALS SHALL BE STORED IN AN ORDERLY MANNER AND IN AN AREA
<br />THAT WILL MINIMIZE CONFLICTS WITH OTHER CONSTRUCTION ACTIVITIES. CONSTRUCTION
<br />DEBRIS SHALL BE CONTAINED IN DUMPSTERS AND REMOVED FROM THE SITE AS
<br />NECESSARY.
<br />13. CHEMICALS
<br />CHEMICALS SHALL BE STORED IN A SAFE AREA IN SEALED CONTAINERS WITH THE
<br />ORIGINAL LABELING AND MATERIAL SAFETY DATA SHEETS AVAILABLE.
<br />14. SPILLS AND CONTAMINATION
<br />IF FUEL, OIL OR A HAZARDOUS CHEMICAL IS SPILLED OR DETECTED DURING
<br />CONSTRUCTION ACTIVITIES, ALL APPROPRIATE AGENCIES SHALL BE IMMEDIATELY NOTIFIED,
<br />INCLUDING, BUT NOT LIMITED TO, THE MINNESOTA DUTY OFFICER AT 800-422-0798.
<br />15.CONCRETE WASHOUT AREA
<br />PERMITTEES MUST PROVIDE EFFECTIVE CONTAINMENT FOR ALL LIQUID AND SOLID WASTES
<br />GENERATED BY WASHOUT OPERATIONS (E.G., CONCRETE, STUCCO, PAINT, FORM RELEASE
<br />OILS, CURING COMPOUNDS AND OTHER CONSTRUCTION MATERIALS) RELATED TO THE
<br />CONSTRUCTION ACTIVITY. PERMITTEES MUST PREVENT LIQUID AND SOLID WASHOUT
<br />WASTES FROM CONTACTING THE GROUND AND MUST DESIGN THE CONTAINMENT SO IT
<br />DOES NOT RESULT IN RUNOFF FROM THE WASHOUT OPERATIONS OR AREAS. PERMITTEES
<br />MUST PROPERLY DISPOSE LIQUID AND SOLID WASTES IN COMPLIANCE WITH MPCA RULES.
<br />PERMITTEES MUST INSTALL A SIGN INDICATING THE LOCATION OF THE WASHOUT FACILITY.
<br />POST CONSTRUCTION
<br />WHEN THE SITE HAS BEEN COMPLETELY CONSTRUCTED, THE SITE MUST UNDERGO FINAL
<br />STABILIZATION. FINAL STABILIZATION OCCURS WHEN ALL OF THE GRADING, INFRASTRUCTURE
<br />AND BUILDING ACTIVITIES HAVE BEEN COMPLETED. TO ACHIEVE FINAL STABILIZATION, THE
<br />FOLLOWING MEASURES SHALL BE COMPLETED.
<br />1. ALL DISTURBED AREAS WITHOUT PERMANENT IMPERVIOUS SURFACES SHALL BE
<br />STABILIZED BY A UNIFORM PERENNIAL VEGETATIVE COVER. AREAS NOT REQUIRING SOD
<br />OR EROSION CONTROL BLANKET SHALL BE SEEDED AND MULCHED.
<br />2. SEDIMENT FROM CONVEYANCES AND TEMPORARY SEDIMENTATION BASINS THAT ARE TO
<br />BE USED AS PERMANENT WATER QUALITY MANAGEMENT BASINS SHALL BE CLEANED OUT.
<br />SEDIMENTATION BASINS SHALL BE SUFFICIENTLY CLEANED OUT TO RETURN THE BASIN
<br />TO DESIGN CAPACITY. SEDIMENT MUST BE STABILIZED TO PREVENT IT FROM BEING
<br />WASHED BACK INTO THE BASIN OR CONVEYANCES DISCHARGING OFF -SITE OR TO
<br />SURFACE WATERS.
<br />3. WHEN STABILIZED VEGETATION HAS BEEN ESTABLISHED OVER 70 PERCENT OF THE
<br />PERVIOUS SURFACE AREA, ALL SYNTHETIC TEMPORARY EROSION AND SEDIMENT CONTROL
<br />MEASURES SHALL BE REMOVED. THIS INCLUDES, BUT IS NOT LIMITED TO, SILT FENCE,
<br />TREE FENCE AND CATCH BASIN INLET PROTECTION DEVICES.
<br />INSPECTIONS & RECORD KEEPING
<br />STORMWATER POLLUTION PREVENTION INSPECTIONS SHALL OCCUR ONCE EVERY SEVEN (7)
<br />DAYS DURING ACTIVE CONSTRUCTION AND WITHIN 24 HOURS AFTER A RAINFALL EVENT
<br />GREATER THAN 0.5 INCHES IN 24 HOURS. INSPECTIONS MAY BE CEASED DURING FROZEN
<br />GROUND CONDITIONS. WHERE WORK HAS BEEN SUSPENDED DUE TO FROZEN GROUND
<br />CONDITIONS, THE REQUIRED INSPECTIONS AND MAINTENANCE MUST TAKE PLACE WITHIN 24
<br />HOURS AFTER RUNOFF OCCURS AT THE SITE OR PRIOR TO RESUMING CONSTRUCTION,
<br />WHICHEVER COMES FIRST. DURING THE COURSE OF CONSTRUCTION, IT MAY BE DETERMINED
<br />THAT ADDITIONAL STORMWATER POLLUTION PREVENTION MEASURES MAY BE NEEDED, OR
<br />CERTAIN MEASURES ARE NOT PRACTICAL TO INSTALL. IN THESE CASES, AN AMENDMENT TO
<br />THE SWPPP SHALL BE MADE, AND SUPPORTING REASONS SHALL BE DOCUMENTED IN THE
<br />SWPPP.
<br />1. THE EXCAVATOR IS RESPONSIBLE FOR ALL EROSION CONTROL INSPECTIONS.
<br />2. RECORD NAME OF INSPECTOR AND DATE AND TIME OF INSPECTION.
<br />3. RECORD RAINFALL AMOUNT SINCE MOST RECENT INPSECTION.
<br />4. INSPECT ROCK CONSTRUCTION ENTRANCES FOR SEDIMENTATION. INSPECT ADJACENT
<br />STREETS FOR SEDIMENT TRACKING.
<br />5. INSPECT SITE FOR EXCESSIVE EROSION AND SEDIMENT ACCUMULATION.
<br />A. INSPECT SILT FENCE AND OTHER TEMPORARY EROSION AND SEDIMENT CONTROL
<br />DEVICES FOR EROSION, SEDIMENTATION AND MALFUNCTIONING.
<br />B. INSPECT FLARED END SECTIONS FOR EROSION AND SEDIMENTATION.
<br />C. INSPECT PONDS, INFILTRATION BASINS, TEMPORARY SEDIMENTATION BASINS AND ALL
<br />OTHER BMP'S FOR EROSION AND SEDIMENTATION.
<br />D. INSPECT SURFACE WATERS, INCLUDING DRAINAGE DITCHES AND CONVEYANCE SYSTEMS
<br />FOR EVIDENCE OF SEDIMENT BEING DEPOSITED BY EROSION.
<br />6. INSPECT SITE AND ADJACENT PROPERTIES FOR CONSTRUCTION DEBRIS, TRASH AND
<br />SPILLS.
<br />7. INSPECT STABILIZED AREAS FOR EROSION.
<br />8. RECORD RECOMMENDED REPAIRS, MAINTENANCE AND/OR REPLACEMENTS REQUIRED TO
<br />ENSURE EROSION AND SEDIMENTATION CONTROL MEASURES ARE SUFFICIENT.
<br />9. RECORD RECOMMENDED AMENDMENTS TO THE SWPPP.
<br />10.RECORD REPAIRS, MAINTENANCE AND/OR REPLACEMENTS THAT WERE COMPLETED SINCE
<br />THE LAST INSPECTION.
<br />NOTE: FOR AREAS THAT HAVE UNDERGONE FINAL STABILIZATION, INSPECTIONS CAN BE
<br />REDUCED TO ONCE PER MONTH.
<br />MAINTENANCE
<br />THE OWNER/CONTRACTOR IS RESPONSIBLE FOR THE OPERATION, INSPECTION AND
<br />MAINTENANCE OF ALL STORMWATER POLLUTION PREVENTION MEASURES FOR THE DURATION
<br />OF THE PROJECT. THE FOLLOWING GUIDELINES SHALL BE USED TO DETERMINE NECESSARY
<br />REPAIRS, MAINTENANCE AND/OR REPLACEMENT OF THE EROSION AND SEDIMENTATION
<br />CONTROL MEASURES.
<br />1. ROCK CONSTRUCTION ENTRANCES SHALL BE REPAIRED OR REPLACED IF THE ROCK
<br />BECOMES INUNDATED WITH SEDIMENT AND/OR EXCESSIVE SEDIMENT IS BEING TRACKED
<br />FROM THE SITE. SEDIMENT TRACKED ONTO ADJACENT STREETS SHALL BE REMOVED.
<br />MEASURES SHALL BE TAKEN IMMEDIATELY UPON DISCOVERY.
<br />2. SILT FENCE SHALL BE REPAIRED OR REPLACED WHEN SEDIMENT REACHES 1 /3 THE
<br />HEIGHT OF THE SILT FENCE, THE SILT FENCE IS DAMAGED AND/OR THE SILT FENCE
<br />BECOMES NONFUNCTIONAL. MEASURES SHALL BE TAKEN WITHIN 24 HOURS OF
<br />DISCOVERY.
<br />3. CATCH BASIN INLET PROTECTION DEVICES SHALL BE CLEANED WHEN SEDIMENT REACHES
<br />j THE HEIGHT OF THE SEDIMENT TRAP AND/OR REPAIRED OR REPLACED IF THE DEVICE
<br />BECOMES NONFUNCTIONAL. MEASURES SHALL BE TAKEN WITHIN 72 HOURS OF
<br />DISCOVERY.
<br />4. FLARED END SECTIONS SHALL BE CLEANED IF DEBRIS IS RESTRICTING FLOW OR IF
<br />SEDIMENT HAS ACCUMULATED AT THE OUTLET. IF A FLARED END SECTION BECOMES
<br />NONFUNCTIONAL OR DAMAGED, IT SHALL BE REPAIRED OR REPLACED. MEASURES SHALL
<br />BE TAKEN WITHIN 72 HOURS OF DISCOVERY.
<br />5. IF SEDIMENT IS OBSERVED OFF -SITE OR NEAR SURFACE WATERS THE SOURCE OF
<br />SEDIMENT SHALL BE DETECTED AND ADDITIONAL MEASURES SHALL BE IMPLEMENTED.
<br />THE PERMITEE(S) SHALL COORDINATE SEDIMENT RETRIEVAL FROM SURFACE WATERS WITH
<br />ALL APPROPRIATE AGENCIES. MEASURES SHALL BE TAKEN WITHIN 7 DAYS OF
<br />DISCOVERY.
<br />6. PONDS, INFILTRATION BASINS, TEMPORARY SEDIMENTATION BASINS AND ALL OTHER BMP'S
<br />SHALL BE CLEANED IF DEBRIS IS PRESENT AND/OR EXCESSIVE SEDIMENTATION HAS
<br />OCCURRED. TEMPORARY AND PERMANENT SEDIMENTATION BASINS MUST BE DRAINED
<br />AND THE SEDIMENT REMOVED WHEN SEDIMENT HAS FILLED THE BASIN TO 1/2 THE
<br />STORAGE VOLUME. NO SEDIMENT SHALL BE ALLOWED TO ACCUMULATE IN INFILTRATION
<br />BASINS. MEASURES SHALL BE TAKEN WITHIN 72 HOURS OF DISCOVERY.
<br />NOTICE OF TERMINATION
<br />THE PERMITEE(S) MUST SUBMIT A NOTICE OF TERMINATION (NOT) TO THE MPCA WITHIN 30
<br />DAYS AFTER FINAL STABILIZATION IS COMPLETE, OR ANOTHER OWNER/OPERATOR
<br />(PERMITEE) HAS ASSUMED CONTROL OVER ALL AREAS OF THE SITE THAT HAVE NOT
<br />UNDERGONE FINAL STABILIZATION.
<br />QUANTITIES
<br />THE FOLLOWING TABLE PROVIDES ESTIMATED QUANTITIES FOR STORMWATER POLLUTION
<br />PREVENTION THROUGHOUT THE PROJECT.
<br />ITEM
<br />UNIT
<br />ESTIMATED
<br />QUANTITY
<br />ROCK ENTRANCE
<br />EA.
<br />1
<br />SILT FENCE
<br />L.F.
<br />910
<br />INLET PROTECTION
<br />EA.
<br />6
<br />TURF ESTABLISHMENT
<br />AC.
<br />2.0
<br />RIP RAP
<br />CY.
<br />12
<br />SWPPP DESIGN CERTIFICATION
<br />UNIVERSITY OF MINNESOTA
<br />Aaron D. Brisk!
<br />Construction Site Management (May 31 2022)
<br />Design of Construction SWPPP (May 31 2022)
<br />Erosion and Stormwater
<br />Management
<br />The bearer of this card has been tested and is certified in the
<br />area(s) shown on the reverse of this card. Certification expira-
<br />tion dates appear after each certification area.
<br />Geis��
<br />Depadment of Bioprodwts and Bioayatems Engineering
<br />Universityof Minnesota
<br />hhp://wvw.erosion.umn.edu Card Issued:61112019
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<br />REVISIONS
<br />1.
<br />2.
<br />3.
<br />4.
<br />5.
<br />6.
<br />DRAWN BY:
<br />KRO
<br />DESIGNED BY:
<br />BJK
<br />ISSUE DATE:
<br />7/30/2021
<br />I hereby certify that this plan, specification
<br />or report was prepared by
<br />me or under
<br />my
<br />direct supervision and that
<br />I am a duly
<br />Licensed Professional Engineer
<br />under
<br />the
<br />laws of the State of Minnesota
<br />Name: Aaron D. Briski, P.E.
<br />Signature:
<br />Date: 7/30/2021 License #: 57811
<br />C11
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