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©2018 Westwood Professional Services, Inc.
<br />SWPPP NARRATIVE
<br />THE SWPPP IS PREPARED IN ACCORDANCE WITH THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
<br />REGULATIONS AS ESTABLISHED BY THE CLEAN WATER ACT. THIS REPORT SHALL BE ON THE SITE AT ALL TIMES DURING
<br />CONSTRUCTION. THE OWNER MUST ALSO KEEP THIS SWPPP ON FILE FOR THREE YEARS AFTER SUBMITTAL OF THE NOTICE OF
<br />TERMINATION. THE FOLLOWING ARE OUTLINED IN THIS SWPPP:
<br />- CONTROL MEASURES FOR STORM WATER POLLUTION PREVENTION PRIOR TO AND DURING CONSTRUCTION
<br />- CONTROL MEASURES FOR STORM WATER POLLUTION PREVENTION AFTER CONSTRUCTION
<br />- INSPECTION AND MAINTENANCE PROCEDURES
<br />THE GRADING AND EROSION CONTROL PLAN PREPARED FOR ORONO SENIOR HOUSING SHALL BE CONSIDERED PART OF THE
<br />SWPPP.
<br />PROJECT LOCATION
<br />THIS DOCUMENT PRESENTS A STORM WATER POLLUTION PREVENTION PLAN (SWPPP) FOR ORONO SENIOR HOUSING IN ORONO,
<br />MINNESOTA. THE SITE IS LOCATED IN THE BETWEEN KELLEY PARKWAY AND WAYZATA BVLD W, THE 3RD PARCEL EAST OF N.
<br />OLD CRYSTAL BAY RD.
<br />OWNER/OPERATOR INFORMATION
<br />ORONO SENIOR HOUSING IS OWNED BY APEX HOLDINGS LLC, 2110 LYNDALE AVENUE SOUTH, SUITE C, MINNEAPOLIS, MN 55405.
<br />ORONO SENIOR HOUSING IS OPERATED BY TBD.
<br />OWNER/OPERATOR RESPONSIBILITIES
<br />OWNER
<br />-DEVELOPMENT OF SWPPP PRIOR TO APPLICATION/NOI SUBMITTAL.
<br />-SUBMIT A COMPLETE AND ACCURATE APPLICATION FORM (NOI)
<br />-COMPLIANCE W/ ALL TERMS AND CONDITIONS OF PERMIT
<br />-SWPPP SUBMITTAL FOR 30 REVIEW FOR PROTECT GREATER THAN 50 ACRES & DISCHARGING TO
<br />SPECIAL/IMPAIRED WATERS WITHIN 1 MILE OF SITE DISCHARGE.
<br />-KEEPING PERMIT COVERAGE UP-TO-DATE (TRANSFER/SUBDIVISION) (PART II.B.5)
<br />-NOT WITHIN 30 DAYS OF COMPLETING NPDES REQUIREMENTS & COMPLETING ACTIVITY ON SITE.
<br />-IDENTIFY WHO HAS LONG TERM 0&M PERMANENT STORMWATER SYSTEM.
<br />-DEVELOP CHAIN OF RESPONSIBILITY WITH ALL OPERATORS TO ENSURE NPDES COMPLIANCE.
<br />CONSTRUCTION MATERIALS, CHEMICALS AND WASTE MATERIALS THAT WILL BE USED OR STORED AT THE SITE:
<br />POTENTIAL POLLUTANT
<br />LOCATION
<br />CONTROL MEASURE
<br />ANTIFREEZE
<br />DIESEL FUEL
<br />FERTILIZER
<br />VARIOUS
<br />SECONDARY CONTAINMENT DRIP PAN
<br />VARIOUS
<br />SECONDARY CONTAINMENT DRIP PAN
<br />LANDSCAPE
<br />CONTRACTOR
<br />IN EQUIPMENT
<br />FUELING AREA
<br />SECONDARY CONTAINMENT
<br />SECONDARY CONTAINMENT / DRIP PAN
<br />GASOLINE
<br />GLUE ADHESIVES
<br />CONTRACTOR
<br />SECONDARY CONTAINMENT
<br />HYDRAULIC OILS FLUIDS
<br />CONTRACTOR
<br />SECONDARY CONTAINMENT
<br />PAINTS
<br />CONTRACTOR
<br />SECONDARY CONTAINMENT
<br />GREASE
<br />CONTRACTOR
<br />SECONDARY CONTAINMENT DRIP PAN
<br />SANITARY WASTE
<br />PORTABLE
<br />BATHROOMS
<br />SERVICE PROVIDER TO SECURE UNITS FROM
<br />TIPPING OVER AND MAINTAINED
<br />SOIL AMENDMENTS
<br />VARIOUS
<br />SECONDARY CONTAINMENT
<br />LANDSCAPING MATERIALS
<br />LANDSCAPE
<br />CONTRACTOR
<br />CONTRACTOR RESPONSIBLE
<br />CONCRETE
<br />TRUCK WASHOUT
<br />WASHOUT AREA
<br />CONCRETE MORTAR
<br />MOBILE MIXER
<br />S.C. WASHOUT AREA
<br />ENSURE
<br />ADEQUATE TREATMENT IS OBTAINED AND DISCHARGE WATER WILL NOT CONTRIBUTE EXCESSIVE SEDIMENT OR
<br />CONSTRUCTION NOTES
<br />IT IS HIGHLY RECOMMENDED THAT THE CONTRACTOR MAINTAIN A STOCKPILE OF EROSION CONTROL DEVICES AND SEDIMENT
<br />CONTROL BMP'S ON SITE AT ALL TIMES FOR IMMEDIATE USAGE. IN THE EVENT OF AN ACCIDENTAL SEDIMENT DISCHARGE TO
<br />WATERS OF THE STATE, OR ANY DISCHARGE OF HAZARDOUS MATERIAL OF REPORTABLE QUANTITY, CONTACT THE MPCA STATE
<br />DUTY OFFICER AT 1-800-422-0798.
<br />TIMING OF BMP INSTALLATION
<br />THE EROSION PREVENTION AND SEDIMENT CONTROL BMP'S SHALL BE INSTALLED TO MINIMIZE EROSION FROM DISTURBED
<br />(PART II.C.) SURFACES AND CAPTURE SEDIMENT ON SITE. THE FOLLOWING LIST DEFINES THE TIMING OF EROSION PREVENTION AND
<br />SEDIMENT CONTROL MEASURES IN SPECIFIC AREAS.
<br />OPERATOR
<br />-RESPONSIBLE FOR PARTS II.B., II.C., IV. & APPENDIX A, PART C. IF APPLICABLE. (JOINTLY WITH OWNER)
<br />-COMPLETE AND SIGN APPLICATIONS FOR PERMIT TRANSFER AND MODIFICATION AND NOTICE OF TERMINATION WITH OWNER
<br />AS NEEDED,
<br />THE OWNER MUST IDENTIFY PERSONNEL KNOWLEDGEABLE AND EXPERIENCED (TRAINED PERSONNEL) IN THE APPLICATION OF
<br />EROSION PREVENTION AND SEDIMENT CONTROL BMP'S WHO WILL OVERSEE THE IMPLEMENTATION OF THE SWPPP, AND THE
<br />INSTALLATION, INSPECTION AND MAINTENANCE OF THE EROSION PREVENTION AND SEDIMENT CONTROL BMP'S BEFORE AND
<br />DURING CONSTRUCTION. TRAINING DOCUMENTATION AND INFORMATION WILL BE INCLUDED WITH THE ON-SITE SWPPP WORKBOOK
<br />AND DOCUMENTATION.
<br />PROJECT DESCRIPTION
<br />THE SITE IS APPROXIMATELY 3.50 ACRES. CONSTRUCTION WILL CONSIST OF, BUT IS NOT LIMITED TO, GRADING, UTILITIES,
<br />CONSTRUCTION OF A MULTI -STORY BUILDING WITH AN APPROXIMATE 40,000 SQ FOOTPRINT, AND LANDSCAPING.
<br />PRE -DEVELOPMENT SITE CONDITIONS
<br />THE EXISTING SITE IS AN UNDEVELOPED FIELD. THE SITE HAS A SLIGHT SLOPE FROM WEST TO EAST WITH SOIL STOCKPILES
<br />AT A FEW LOCATIONS.
<br />POST -DEVELOPMENT SITE CONDITIONS
<br />THE PROPOSED SITE WILL CONSIST OF A MULTI -STORY BUILDING, WITH ASSOCIATED DRIVE LANES AND PARKING. PERVIOUS
<br />AREAS WILL BE VEGETATED. DRAINAGE WILL BE COLLECTED VIA SITE STORM SEWER WHICH WILL DISCHARGE TO AN EXISTING
<br />REGIONAL POND TO THE EAST OF THE SITE. THE POND WAS DESIGNED TO HANDLE STORMWATER RUNOFF FROM THIS SITE.
<br />LAND FEATURE CHANGES
<br />THE DISTURBED AREA IS 3.5 ACRES.
<br />EXISTING SITE IS 100% PERVIOUS.
<br />THE PROPOSED SITE IS 62.6 % IMPERVIOUS
<br />THE NET INCREASE IN IMPERVIOUS AREA IS 2.19 ACRE.
<br />IMPAIRED WATERS
<br />THERE IS ONE IMPAIRED WATERS WITHIN 1 (ONE) MILE OF THE PROJECT SITE DISCHARGE LOCATIONS) AS INDICATED ON THE
<br />PCA IMPAIRED WATERS MAP. LONG LAKE IS IMPAIRED FOR MERCURY IN FISH TISSUE AND NUTRIENT/EUTHROPHICATION
<br />BIOLOGICAL INDICATORS, AND IS LOCATED 5215' EAST OF THE PROJECT SITE.
<br />SPECIAL WATERS
<br />THERE ARE NO SPECIAL WATERS WITHIN 1 (ONE) MILE OF THE PROJECT SITE DISCHARGE LOCATIONS) AS INDICATED ON THE
<br />PCA SPECIAL WATERS MAP.
<br />SOIL TYPES
<br />THE SITE CONTAINS 1.5 TO 4' THICK LAYER OF TOPSOIL, OVERLAYING FILL AND DEPOSITS CONSISTING MAINLY OF CLAYEY
<br />SAND AND LEAN CLAY. REFER TO THE GEOTECHNICAL REPORT DATED 01/18/2018 completed by BRAUN INTERTEC. THE SOILS
<br />HAVE SLIGHT EROSION POTENTIAL.
<br />STORM WATER MANAGEMENT PLAN
<br />THE PERMANENT STORM WATER MANAGEMENT PLAN WILL CONSIST OF THE EXISTING WET SEDIMENTATION BASIN CONSTRUCTED
<br />EAST OF THE PROJECT. THE POND WAS DESIGNED FOR MNDOT HIGHWAY WORK AND A FEW AREA DEVELOPMENTS. THE DESIGN
<br />POND STORAGE IS 14.2 ACRE-FEET.
<br />EROSION/SEDIMENT CONTROL PREVENTION MEASURES
<br />TEMPORARY AND PERMANENT EROSION AND SEDIMENT CONTROL BMP'S ALONG WITH THE PROCEDURES TO BE USED TO
<br />ESTABLISHED ADDITIONAL TEMPORARY BMP'S AS NECESSARY FOR SITE CONDITIONS DURING CONSTRUCTION ARE IDENTIFIED ON
<br />THE SITE GRADING AND EROSION CONTROL PLAN PREPARED FOR THE DEVELOPMENT OF THIS PROJECT, AND WITHIN THE
<br />PROJECT STORM WATER POLLUTION PREVENTION PLAN.
<br />PERMANENT VEGETATION ESTABLISHMENT
<br />PERMANENT TURF SHALL FOLLOW THE RECOMMENDATIONS PER NOTES AND SPECIFICATIONS IN THE GRADING AND/OR
<br />LANDSCAPE PLAN. SEEDING THAT IS TO OCCUR AFTER OCTOBER 20TH SHALL CONFORM TO THE MN/DOT SPECIFICATIONS FOR
<br />DORMANT SEEDING PER THE MN/DOT SEEDING MANUAL 2007.
<br />POTENTIAL STORM WATER POLLUTANTS
<br />POTENTIAL POLLUTANT SOURCES, INCLUDING CONSTRUCTION AND WASTE MATERIALS THAT ARE USED OR STORED AT THE SITE,
<br />ARE DESCRIBED IN THE SECTION. BY IMPLEMENTATION OF THESE BMPS, THE POTENTIAL POLLUTANT SOURCES ARE NOT
<br />REASONABLY EXPECTED TO AFFECT THE STORM WATER DISCHARGES FROM THE SITE.
<br />Westwood
<br />Phone (952) 937-5150 12701 Whitewater Drive, Suite #300
<br />Fax (952) 937-5822 Minnetonka, MN 55343
<br />Toll Free (888) 937-5150 westwoodps.com
<br />Westwood Professional Services, Inc.
<br />I hereby certify that this plan was prepared by me or under my
<br />direct supervision and that I am a duly licensed PROFESSIONAL
<br />ENGINEER under the laws of the State of Minnesota
<br />Ryan U Bluhm
<br />Data 08/08/18 Uowse No. 41257
<br />PRIOR TO START OF CONSTRUCTION
<br />THE FOLLOWING EROSION PREVENTION AND SEDIMENT CONTROL MEASURES ARE SHOWN IN THE PLANS AND SHALL BE
<br />IMPLEMENTED PRIOR TO CONSTRUCTION:
<br />1. INSTALL SILT FENCE OR OTHER SEDIMENT CONTROL AROUND THE PERIMETER OF AREAS TO BE GRADED AND ALL AREAS
<br />WHICH ARE NOT TO BE DISTURBED AS SHOWN ON THE GRADING AND EROSION CONTROL PLAN.
<br />2. CONSTRUCT GRAVEL CONSTRUCTION ENTRANCES AT FIELD ENTRANCES TO THE SITE AS SHOWN ON THE CONSTRUCTION
<br />PLANS.
<br />3. INLET PROTECTION IS TO BE INSTALLED AT ALL STORM WATER INLETS WHICH HAVE THE POTENTIAL TO RECEIVE STORM
<br />WATER RUNOFF FROM THE CONSTRUCTION SITE WITHIN 200 FEET OF LIMITS OF CONSTRUCTION.
<br />4. INSTALL SILT FENCE OR OTHER SEDIMENT CONTROL AROUND ALL TEMPORARY INACTIVE STOCKPILES. ALL SILT FENCES
<br />FOR STOCKPILES SHALL BE INCIDENTAL TO GRADING CONTRACT IF STOCKPILES ARE PLACED OUTSIDE OF SILT FENCES
<br />SHOWN ON THE PLAN.
<br />DURING CONSTRUCTION
<br />THE FOLLOWING EROSION PREVENTION AND SEDIMENT CONTROL MEASURES ARE SHOWN IN THE PLANS AND SHALL BE
<br />IMPLEMENTED DURING CONSTRUCTION:
<br />1. PHASE GRADING WORK TO MINIMIZE THE DURATION THAT ANY DISTURBED SOIL IS EXPOSED.
<br />2. ALL DISTURBED AREAS SHALL HAVE TEMPORARY PROTECTION OR PERMANENT COVER OVER EXPOSED SOIL
<br />AREAS IF NOT BEING ACTIVELY GRADED AND/OR IF NOT AT FINAL GRADE WITHIN 7 DAYS OF DISTURBANCE ACTIVITY
<br />TEMPORARILY OR PERMANENTLY CEASING. TEMPORARY SEED MIX 150, APPLIED AT A RATE OF 40 LBS/ACRE, SHALL BE
<br />USED PRIOR TO WINTER, IF SITE NOT SODDED.
<br />3. STRIP AND STOCKPILE TOPSOIL FOR REPLACEMENT OF 6 INCHES OF TOPSOIL OVER TURF AREAS WHEN GRADING IS
<br />COMPLETE.
<br />4. PLACE A MINIMUM OF 2 TONS/ACRE OF STRAW ON ALL AREAS AFTER REACHING FINAL GRADE WITH TOPSOIL AND
<br />ANCHOR STRAW WITH EITHER A STRAIGHT DISK, HYDROMULCH OR POLYMER.
<br />5. STABILIZATION OF TEMPORARY OR PERMANENT DRAINAGE DITCHES THAT DRAIN WATER FROM THE CONSTRUCTION SITE
<br />MUST BE INITIATED WITHIN 24 HOURS OF CONNECTING THE DRAINAGE DITCH TO ANY CONVEYANCE SYSTEM THAT
<br />DISCHARGES TO SURFACE WATERS. THE FIRST 200 LINEAR FEET MUST BE STABILIZED WITHIN 24 HOURS. THE
<br />REMAINING DITCH SHALL BE STABILIZED WITHIN 7 DAYS.
<br />6. INSTALL SILT FENCE AROUND ALL TEMPORARY INACTIVE STOCKPILES WHICH ARE NOT PLACED WITHIN EXISTING SILT
<br />FENCES OR OTHER PERIMETER CONTROLS.
<br />7. TEMPORARY OR PERMANENT ENERGY DISSIPATION AT PIPE APRON OUTLETS WILL BE PLACED PRIOR TO BUT NO SOONER
<br />THAN 7 DAYS BEFORE APRON IS INSTALLED. RIPRAP SHALL BE INSTALLED UNDER APRON LIP ACCORDING TO THE
<br />STANDARD DETAIL.
<br />8. SUFFICIENT PERSONNEL, EQUIPMENT, AND MATERIALS SHALL BE MOBILIZED WITHIN 24 HOURS OF A WRITTEN ORDER BY
<br />THE OWNER OR OWNER'S REPRESENTATIVE TO CONDUCT CORRECTIVE WORK AND INSTALL TEMPORARY EROSION CONTROL
<br />WORK IN THE CASE OF AN EMERGENCY.
<br />9. REMOVE ANY SEDIMENT THAT HAS BEEN TRACKED ONTO PUBLIC STREETS AT THE END OF THE DAY OR WITHIN 24
<br />HOURS OF DETECTION, OR MORE FREQUENT AT DIRECTION OF SITE INSPECTOR.
<br />10. COLLECT ALL CONSTRUCTION DEBRIS IN DUMPSTERS AND ROLL -OFF BOXES, EMPTY WHEN DEBRIS REACHES TOP OF
<br />DUMPSTER
<br />11. INSPECT POLLUTION CONTROL MEASURES AS SPECIFIED WITHIN PART IV.F OF THE GENERAL PERMIT.
<br />12. REPAIR SILT FENCES, INLET PROTECTION, GRAVEL CONSTRUCTION ENTRANCES AND OTHER EROSION AND SEDIMENT
<br />CONTROLS AS NEEDED AND AS DEFINED IN THE PART IV.E.4
<br />INLET SEDIMENT CONTROL BMP REMOVAL
<br />IF INLET SEDIMENT CONTROLS (WIMCO TYPE OR EQUAL) BMPS ARE REMOVED FOR FLOODING / FREEZING CONCERNS UPON
<br />REQUEST OF THE MUNICIPALITY, WATERSHED DISTRICT OR OTHER AGENCY, DOCUMENTATION SHALL BE ATTACHED TO THE
<br />INSPECTION REPORTS AND THIS SWPPP OR BE AVAILABLE WITHIN 72 HOURS OF REQUEST. DOCUMENTATION SHALL BE A
<br />WRITTEN FORM OF CORRESPONDENCE VERIFYING THE NEED FOR REMOVAL.
<br />UPON COMPLETION OF CONSTRUCTION ACTIVITIES
<br />THE FOLLOWING EROSION PREVENTION AND SEDIMENT CONTROL MEASURES ARE SHOWN IN THE PLANS AND SHALL BE
<br />IMPLEMENTED UPON COMPLETION OF CONSTRUCTION ACTIVITIES:
<br />1. ALL DISTURBED AREAS WITHOUT PERMANENT IMPERMEABLE SURFACES WILL BE VEGETATED FOR FINAL STABILIZATION. IF
<br />EROSION CONTROL BLANKET IS NOT REQUIRED, THE SITE SHALL BE STABILIZED WITH MN/DOT SEED MIXTURE 250
<br />APPLIED AT 70 LBS/ACRE AND TYPE -1 MULCH APPLIED AT 2 TONS/ACRE IN ACCORDANCE WITH MN/DOT SPECIFICATION
<br />2575.
<br />2. REMOVE ALL SILT FENCE, INLET PROTECTION AND OTHER EROSION AND SEDIMENT CONTROL DEVICES AFTER VEGETATION
<br />IS 70% ESTABLISHED BY UNIFORM PERENNIAL VEGETATION COVER OVER THE ENTIRE PERVIOUS SURFACE AREA. REPAIR
<br />ALL AREAS DISTURBED DURING REMOVAL OF BMPS.
<br />3. CLEAN OUT ALL SEDIMENT FROM CONVEYANCES AND FROM TEMPORARY SEDIMENT BASINS THAT ARE TO BE USED AS
<br />PERMANENT WATER QUALITY MANAGEMENT BASINS. THE CLEAN OUT OF PERMANENT BASINS MUST BE SUFFICIENT TO
<br />RETURN THE BASIN TO DESIGN CAPACITY.
<br />4. THE ORIGINAL PERMITTEES (OWNER AND OPERATOR) WHO HOLD THE NPDES PERMIT MUST SUBMIT NOTICE OF
<br />TERMINATION (NOT) WITHIN 30 DAYS AFTER CONSTRUCTION AND FINAL STABILIZATION IS COMPLETE.
<br />Rens:
<br />08/07/17 - City Comments
<br />03/20/18 - Final Development Approval Plans
<br />05/30/18 - City Comm ents/Stormwater
<br />07/11/18 - Watershed Comments
<br />08/06/18 - City/Watershed Comments
<br />08/08/18 - City Comments
<br />Designed: RMB
<br />Checked: RMB
<br />Drawn: SYS
<br />Record Drawing by/date:
<br />A NOTICE OF TERMINATION (NOT) CAN BE APPLIED FOR PRIOR TO COMPLETION OF ALL CONSTRUCTION ACTIVITY IF ALL THE
<br />FOLLOWING CONDITIONS ARE MET:
<br />1. CONSTRUCTION ACTIVITY HAS CEASED FOR AT LEAST 90 DAYS
<br />2. AT LEAST 90% BY AREA, OF ALL ORIGINALLY PROPOSED CONSTRUCTION ACTIVITY HAS BEEN COMPLETED AND
<br />PERMANENT COVER IS ESTABLISHED ON THOSE AREAS.
<br />3. ON AREAS WHERE CONSTRUCTION ACTIVITY IS NOT COMPLETE, PERMANENT COVER HAS BEEN ESTABLISHED.
<br />SWPPP INSPECTIONS AND MAINTENANCE
<br />EROSION AND SEDIMENT CONTROL INSPECTIONS
<br />INSPECTIONS SHALL BE CONDUCTED BY A TRAINED AND QUALIFIED PERSON EVERY SEVEN DAYS AND WITHIN 24 HOURS AFTER
<br />A RAINFALL EVENT EXCEEDING 0.5 INCHES IN A 24 HOUR PERIOD. THE OWNER OR AN ALTERNATE WILL CONDUCT THE
<br />INSPECTIONS AS SPECIFIED IN THIS SWPPP. ALTERNATES WILL INCLUDE INDIVIDUALS TO BE DESIGNATED BY THE OWNER AND
<br />MAY INCLUDE CONTRACTOR PERSONNEL OR OTHER QUALIFIED INDIVIDUALS AND SHALL BE LISTED IN THE PROJECT CONTACT
<br />INFORMATION SECTION OF THIS REPORT.
<br />FOLLOWING A RAIN EVENT INSPECTION, THE NEXT ROUTINE (WEEKLY) INSPECTION WILL TAKE PLACE WITHIN SEVEN (7) DAYS.
<br />THE FOLLOWING SHALL BE COMPLETED DURING EACH INSPECTION:
<br />1.
<br />RECORD
<br />DATE AND TIME OF INSPECTION
<br />2.
<br />NAME OF PERSON(S) CONDUCTING INSPECTION
<br />3.
<br />RECORD
<br />RAINFALL RECORDS SINCE MOST RECENT INSPECTION
<br />4.
<br />INSPECT
<br />THE SITE FOR EXCESS EROSION AND SEDIMENTATION
<br />5.
<br />INSPECT
<br />SITE FOR DEBRIS, TRASH AND SPILLS
<br />6.
<br />INSPECT
<br />TEMPORARY EROSION AND SEDIMENTATION CONTROL DEVICES
<br />7.
<br />INSPECT
<br />CONSTRUCTION ENTRANCES FOR SEDIMENT TRACKING ONTO PAVED STREETS.
<br />8.
<br />INSPECT
<br />THE ADJACENT STREETS AND CURB AND GUTTER FOR SEDIMENT, LITTER, AND CONSTRUCTION DEBRIS.
<br />9.
<br />INSPECT
<br />SITE RUNOFF OUTFALL OR DISCHARGE AREAS
<br />10.
<br />RECORD
<br />FINDINGS OF INSPECTION, INCLUDING RECOMMENDATIONS FOR CORRECTIVE ACTIONS
<br />11.
<br />RECORD
<br />CORRECTIVE ACTIONS TAKEN (INCLUDING DATES, TIMES AND PARTY COMPLETING MAINTENANCE ACTIVITIES)
<br />12.
<br />RECORD
<br />CHANGES MADE TO THE SWPPP AS REQUIRED IN PART III.A.5 OF THE GENERAL PERMIT
<br />13.
<br />THE SITE
<br />INSPECTOR WILL VISUALLY CHECK A DISCHARGE FROM A TEMPORARY OR PERMANENT SEDIMENTATION BASIN TO
<br />ENSURE
<br />ADEQUATE TREATMENT IS OBTAINED AND DISCHARGE WATER WILL NOT CONTRIBUTE EXCESSIVE SEDIMENT OR
<br />OTHER NUISANCE
<br />CONDITIONS.
<br />MAINTENANCE OF EROSION AND SEDIMENT CONTROL DEVICES
<br />THE OWNER/CONTRACTOR IS RESPONSIBLE FOR THE OPERATION, MAINTENANCE OF TEMPORARY AND PERMANENT WATER
<br />QUALITY MANAGEMENT BMPS AS WELL AS ALL EROSION PREVENTION AND SEDIMENT CONTROL BMPS, FOR THE DURATION OF
<br />THE CONSTRUCTION WORK AT THE SITE.
<br />THE FOLLOWING GUIDELINES WILL BE USED TO DETERMINE IF THE EROSION AND SEDIMENT CONTROL DEVICES REQUIRE
<br />MAINTENANCE, REPAIR, OR REPLACEMENT:
<br />1. IF SEDIMENT CONTROL DEVICES SUCH AS SILT FENCE ARE FILLED TO 1/3 OF THE HEIGHT OF THE CONTROL DEVICE, THE
<br />CONTRACTOR SHALL REMOVE ALL SEDIMENT WITHIN 24 HOURS OF DETECTION OR NOTIFICATION.
<br />2. IF INLET PROTECTION DEVICES APPEAR PLUGGED WITH SEDIMENT, ARE FILLED TO 1/3 CAPACITY, OR HAVE STANDING
<br />WATER AROUND THEM, THE CONTRACTOR SHALL REMOVE THE SEDIMENT AND CLEAN OR REPLACE THE FILTER WITHIN 7
<br />DAYS OF DETECTION OR NOTIFICATION.
<br />3. IF THE GRAVEL CONSTRUCTION ENTRANCES ARE FILLED WITH SEDIMENT OR OTHERWISE FAILING THE CONTRACTOR SHALL
<br />EITHER REPLACE THE ENTRANCE OR ADD ADDITIONAL GRAVEL WITHIN 24 HOURS OF DETECTION OR NOTIFICATION.
<br />4. IF SEDIMENT FROM THE SITE IS OBSERVED ON PAVED ADJACENT STREETS OR OTHER PROPERTIES, THE CONTRACTOR
<br />SHALL REMOVE THE SEDIMENT WITHIN 24 HOURS OF DETECTION OR NOTIFICATION.
<br />5. IF SEDIMENT FROM THE SITE IS OBSERVED ON ADJACENT STREETS, IN SURFACE WATERS OR OTHER PROPERTIES, THE
<br />CONTRACTOR SHALL IDENTIFY THE SOURCE AND DISCHARGE LOCATION OF THE SEDIMENT AND IMPLEMENT ADDITIONAL
<br />EROSION AND SEDIMENT CONTROLS AT THOSE LOCATIONS TO PREVENT FUTURE DISCHARGES. (additional controls and
<br />information is described within the "SWPPP Notes" plan sheet) SEDIMENT MUST BE RETRIEVED WITHIN 7 DAYS FROM
<br />SURFACE WATERS UNLESS ADDITIONAL REGULATORY APPROVAL IS NEEDED. THE PERMITTEE IS RESPONSIBLE TO
<br />CONTACT ALL LOCAL, REGIONAL, STATE AND FEDERAL AUTHORITIES AND OBTAIN ANY APPLICABLE PERMITS PRIOR TO
<br />CONDUCTING ANY WORK TO REMOVE SEDIMENT THAT HAS BEEN DISCHARGED FROM THE SITE.
<br />6. IF TEMPORARY SEDIMENTATION BASINS APPEAR PLUGGED WITH SEDIMENT, OR FILLED TO 1/2 CAPACITY, THE
<br />CONTRACTOR SHALL DRAIN THE BASIN AND REMOVE THE SEDIMENT WITHIN 72 HOURS OF DETECTION OR NOTIFICATION.
<br />7. IF EXCESSIVE SEDIMENTS OR DEBRIS ARE OBSERVED AT THE FLARED END SECTION OUTFALLS, THE CONTRACTOR SHALL
<br />DETERMINE THE SOURCE AND DISCHARGE LOCATIONS OF SUCH MATERIALS. IF THE DISCHARGE HAS OCCURRED ON THE
<br />PROPERTY, THE CONTRACTOR SHALL REMOVE THE SEDIMENTS AND DEBRIS WITHIN 7 DAYS OF NOTIFICATION AND
<br />CORRECT THE SOURCE OF SUCH MATERIALS.
<br />8. IF SEDIMENT FROM THE SITE IS OBSERVED TO BE DISCHARGED FROM THE SITE, THE MPCA WILL BE NOTIFIED THE SAME
<br />DAY.
<br />AFTER FINAL STABILIZATION, THE RATE OF INSPECTIONS OF THE STABILIZED AREAS MAY BE REDUCED TO ONCE A MONTH IN
<br />AREAS WHERE NO CONSTRUCTION IS ACTIVE AND 70% DENSITY VEGETATION IS ESTABLISHED.
<br />MONTHLY INSPECTIONS TAKING PLACE WHERE AREAS OF THE SITE OR THE ENTIRE SITE ARE STABILIZED AND NON-ACTIVE WILL
<br />BE CEASED AFTER A PERIOD OF 12 MONTHS IF THE SITE OR PORTIONS OF THE SITE ARE NON-ACTIVE AND STABILIZED.
<br />INSPECTIONS WILL BE INITIATED ONCE AGAIN UPON CONSTRUCTION ACTIVITY BEGINNING OR UPON REQUEST FROM THE PCA OR
<br />THEIR APPOINTED INSPECTOR. INSPECTIONS WILL CEASE DURING FROZEN GROUND CONDITIONS BUT WILL BEGIN AGAIN WITHIN
<br />24 HOURS OF A RUNOFF EVENT.
<br />Prepared for:
<br />Apex HLLC
<br />2110 Lyndale Avenue South Suite C
<br />Minneapolis, MN 55405
<br />Orono Senior
<br />Housing
<br />Orono, Minnesota
<br />Call 48 Hours before digging:
<br />811 or call811.com
<br />Common Ground Alliance
<br />0011740SWP01. dwg
<br />Date: 06/19/17 sheet: 12 OF 13
<br />SWPPP Narrative
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