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SWPPP NOTES
1. PROJECT DESCRIPTION - THE NATURE OF THIS PROJECT WILL CONSIST OF ADDING ONTO
AN EXISTING SCHOOL, ROAD CONTINUATION AND ASSOCIATED UTILITIES.
2. SEQUENCING OF MAJOR CONSTRUCTION ACTIVITIES ARE AS FOLLOWS:
1. INSTALL VEHICLE TRACKING BMP & CONCRETE WASHOUT
2. INSTALL SILT FENCE AS SHOWN
3. STRIP AND STOCKPILE TOPSOIL
4. GRADE SITE
5. INSTALL UTILITIES & STORM WATER MANAGEMENT DEVICES
6. FINAL GRADE SITE & REMOVE SEDIMENT FROM BASIN/INLETS
7. INSTALL THE BITUMINOUS & CONCRETE WORK
8. SEED AND MULCH AND LANDSCAPING
9. WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND THE SITE IS STABILIZED, REMOVE
SILT FENCE AND RESEED ANY AREAS DISTURBED BY THE REMOVAL.
3. SITE DATA:
TOTAL DISTURBED AREA: 2.5 AC
PRE -CONSTRUCTION IMPERVIOUS AREA: 0.3 AC
POST -CONSTRUCTION IMPERVIOUS AREA: 0.5 AC
AREA OF DISTURBANCE: 2.5 AC
GENERAL SOIL TYPE: HSG B, FROM SOILS BORING LOGS & GE-OTECH SOIL SURVEY, SILTY
SAND WITH CLAYEY SAND BELOW AND SANDY LEAN CLAY BELOW THE CLAYEY SAND
4. THE LOCATION OF AREAS NOT TO BE DISTURBED MUST BE IDENTIFIED WITH FLAGS,
STAKES, SIGNS, SILT FENCE, ETC. BEFORE CONSTRUCTION BEGINS.
5. ALL DISTURBED GROUND LEFT INACTIVE FOR SEVEN (7) OR MORE DAYS SHALL BE
STABILIZED BY SEEDING OR SODDING (ONLY AVAILABLE PRIOR TO SEPTEMBER 15) OR BY
MULCHING OR COVERING OR OTHER EQUIVALENT CONTROL MEASURE. AT A RATE nF 1.5
TIMES STANDARD SEEDING FINAL STABILIZATION TO BE DONE PER LANDSCAPE PLAN, SEE
SHEET 1-1-1.
6. ON SLOPES 3:1 OR GREATER MAINTAIN SHEET FLOW AND MINIMIZE RILLS AND/OR
GULLIES, SLOPE LENGTHS CAN NOT BE GREATER THAN 75 FEET.
DENOTES SLOPES GREATER THAN 3:1. ALL 3:1 SLOPES TO BE STABILIZED WITH
EROSION CONTROL BLANKET
7. ALL STORM DRAINS AND INLETS MUST BE PROTECTED UNTIL ALL SOURCES OF POTENTIAL
DISCHARGE ARE STABILIZED.
8. TEMPORARY SOIL STOCKPILES MUST HAVE EFFECTIVE SEDIMENT CONTROL AND CAN
NOT BE PLACED IN SURFACE WATERS OR STORM WATER CONVEYANCE SYSTEMS.
TEMPORARY STOCKPILES WITHOUT SIGNIFICANT AMOUNT nF SILT, CLAY, OR ORGANIC
COMPOUNDS ARE EXEPMT EX: CLEAN AGGREGATE STOCK PILES, DEMOLITION
CONCRETE STOCKPILES, SAND STOCKPILES.
9. SEDIMENT LADEN WATER MUST BE DISCHARGED TO A SEDIMENTATION BASIN
WHENEVER POSSIBLE. IF NOT POSSIBLE, IT MUST BE TREATED WITH THE APPROPRIATE
B M P'S.
10. SOLID WASTE MUST BE DISPOSED OF PROPERLY AND MUST COMPLY WITH MPCA
DISPOSAL REQUIREMENTS.
11. THE WATERSHED DISTRICT OR THE CITY MAY HAVE REQUIREMENTS FOR INSPECTIONS OR
AS -BUILT DRAWINGS VERIFYING PROPER CONSTRUCTION OF THE BMPS.
12. THE -OWNER WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE AND IS
RESPONSIBLE FOR COMPLIANCE WITH ALL TERMS AND CONDITIONS OF THE PERMIT. THE
OPERATOR (CONTRACTOR) WHO SIGNS THE NPDES PERMIT APPLICATION IS A PERMITTEE
FOR PARTS II.B., PART II.C, PART II.B-F, PART V, PART IV AND APPLICABLE cnNSTRUCTinN
ACTIVITY REQUIREMENTS FOUND IN APPENDIX A, PART C. OF THE NPDES PERMIT AND IS
JOINTLY RESPONSIBLE WITH THE -OWNER FOR COMPLIANCE WITH THOSE PORTIONS OF
THE PERMIT.
13. TERMINATION OF COVERAGE -PERMITTEES) WISHING TO TERMINATE COVERAGE MUST
SUBMIT A NOTICE OF TERMINATION (NOT) TO THE MPCA. ALL PERMITTEE(S) MUST SUBMIT
A NOT WITHIN 30 DAYS AFTER ONE OR MORE OF THE FOLLOWING CONDITIONS HAVE
BEEN MET:
A. FINAL STABILIZATION, PER NPDES PERMIT PART IV.G. HAS BEEN ACHIEVED ON ALL
PORTIONS OF THE SITE FOR WHICH THE PERMITTEE IS RESPONSIBLE.
B. TRANSFER OF OWNERSHIP AS DESCRIBED IN THE PERMIT.
15. INSPECTIONS
A. INITIAL INSPECTION FOLLOWING SILT FENCE INSTALLATION BY CITY
REPRESENTATIVE IS REQUIRED.
B. EXPOSED SOIL AREAS: ONCE EVERY 7 DAYS AND WITHIN 24 HOURS FOLLOWING A
0.5" OVER 24 HOUR RAIN EVENT.
C. STABILIZED AREAS: ONCE EVERY 30 DAYS
D. FROZEN GROUND: AS SOON AS RUNOFF OCCURS OR PRIOR TO RESUMING
CONSTRUCTION.
E. INSPECTION AND MAINTENANCE RECORDS MUST BE RETAINED FOR 3 YEARS AFTER
FILING OF THE NOTICE OF TERMINATION AND MUST INCLUDE: DATE AND TIME OF
ACTION, NAME OF PERSON(S) CONDUCTING WORK, FINDING OF INSPECTIONS AND
RECOMMENDATIONS FOR CORRECTIVE ACTION, DATE AND AMOUNT OF RAINFALL
EVENTS GREATER THAN 0.5 INCHES IN A 24 HOUR PERIOD.
16. MINIMUM MAINTENANCE
A. SILT FENCE TO BE REPAIRED, REPLACED, SUPPLEMENTED WHEN NONFUNCTIONAL,
OR 1/3 FULL; WITHIN 24 HOURS
B. SEDIMENT BASINS DRAINED AND SEDIMENT REMOVED WHEN REACHES 1/2
STORAGE VOLUME. REMOVAL MUST BE COMPLETE WITHIN 72 HOURS OF
DISCOVERY.
C. SEDIMENT REMOVED FROM SURFACE WATERS WITHIN (7)SEVEN DAYS
D. CONSTRUCTION SITE EXITS INSPECTED, TRACKED SEDIMENT REMOVED WITH 24
HOURS.
E. PROVIDE COPIES OF EROSION INSPECTION RESULTS TO CITY ENGINEER FOR ALL
EVENTS GREATER THAN %" IN 24 HOURS
17. THE SWPPP, INCLUDING ALL CHANGES TO IT, AND INSPECTIONS AND MAINTENANCE
RECORDS MUST BE KEPT AT THE SITE DURING CONSTRUCTION ACTIVITY BY THE
PERMITTEE(S) WHO HAVE OPERATIONAL CONTROL OF THE SITE.
18. OWNER MUST KEEP RECORDS OF ALL PERMITS REQUIRED FOR THE PROJECT, THE SWPPP,
ALL INSPECTIONS AND MAINTENANCE, PERMANENT OPERATION AND MAINTENANCE
AGREEMENTS, AND REQUIRED CALCULATIONS FOR TEMPORARY AND PERMANENT
STORM WATER MANAGEMENT SYSTEMS. THESE RECORDS MUST BE RETAINED FOR
THREE YEARS AFTER FILING NPDES NOTICE OF TERMINATION.
19, SWPPP MUST BE AMENDED WHEN:
A. THERE IS A CHANGE IN DESIGN, OPERATION, MAINTENANCE, WEATHER OR
SEASONAL CONDITIONS THAT HAS A SIGNIFICANT EFFECT ON DISCHARGE
B. INSPECTIONS INDICATE THAT THE SWPPP IS NOT EFFECTIVE AND DISCHARGE IS
EXCEEDING WATER QUALITY STANDARDS.
C. THE BMP'S IN THE SWPPP ARE NOT CONTROLLING POLLUTANTS IN DISCHARGES nR
IS NOT CONSISTENT WITH THE TERMS AND CONDITIONS OF THE PERMIT.
D. AT ANY TIME AFTER PERMIT COVERAGE IS EFFECTIVE, THE MPCA MAY DETERMINE
THAT THE PROJECT'S STORMWATER DISCHARGES MAY CAUSE, HAVE REASONABLE
POTENTIAL TO CAUSE, OR CONTRIBUTE TO NON -ATTAINMENT OF ANY APPLICABLE
WATER QUALITY STANDARD, OR THAT THE SWPPP DOES NOT INCORPORATE THE
APPLICABLE REQUIREMENTS IN PART III.A.8., (IMPAIRED WATERS AND TMDLS). IF A
WATER QUALITY STANDARD CHANGES DURING THE TERM OF THIS PERMIT, THE
MPCA WILL AKE A DETERMINATION AS TO WHETHER A MODIFICATION OF THE
SWPPP IS NECESSARY TO ADDRESS THE NEW STANDARD. IF THE MPCA MAKES SUCH
DETERMINATION(S) OR ANY OF THE DETERMINATIONS IN PARTS III.B.1.-3., THE
MPCA WILL NOTIFY THE PERMITTEE(S) IN WRITING. IN RESPONSE, THE PERMITTEE(S)
MUST AMEND THE SWPPP TO ADDRESS THE IDENTIFIED CONCERNS AND SUBMIT
INFORMATION REQUESTED BY THE MPCA, WHICH MAY INCLUDE AN INDIVIDUAL
PERMIT APPLICATION. IF THE MPCA'S WRITTEN NOTIFICATION REQUIRES A
RESPONSE, FAILURE TO RESPOND WITHIN THE SPECIFIED TIMEFRAME CONSTITUTES
A PERMIT VIOLATION.
20. CONCRETE WASHOUT
A. CONTRACTOR TO PROVIDE PREFABRICATED CONCRETE WASH-OUT CONTAINER
WITH RAIN PROTECTION PER PLAN.
B. CONCRETE WASH-OUT TO BE IDENTIFIED WITH SIGNAGE STATING "CONCRETE
WASHOUT AREA DO NOT OVERFILL".
C. CONCRETE WASHOUT WATER NEEDS TO BE PUMPED WITHIN 24 HOURS OF
STANDING WATER IN WASHOUT AREA.
D. ALTERNATE: PORTABLE TRUCK MOUNTED PUMP RECOVERY SYSTEM, OR PORTABLE
TRUCK MOUNTED PULL BEHIND WASH TANK.
21. IN THE EVENT OF ENCOUNTERING A WELL nR SPRING DURING CONSTRUCTION
CONTRACTOR TO CEASE CONSTRUCTION ACTIVITY AND NOTIFY ENGINEER.
22. PIPE OULTETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY
DISSIPATION WITHIN 24 HOURS AFTER CONNECTION TO A SURFACE WATER.
23. FINAL STABILIZATION
FINAL STABILIZATION REQUIRES THAT ALL SOIL DISTURBING ACVTIVITIES HAVE BEEN
COMPLETED AND THAT DISTURBED AREAS ARE STABILIZED BY A UNIFORM PERENNIAL
VEGETATIVE COVER WITH 70% OF THE EXPECTED FINAL DENSITY, AND THAT ALL
PERMANENT PAVEMENTS HAVE BEEN INSTALLED. ALL TEMPORARY BMP'S SHALL BE
REMOVED, DITCHES STABILIZED, AND SEDIMENT SHALL BE REMOVED FROM PERMANENT
CONVEYANCES AND SEDIMENTATION BASINS IN ORDER TO RETURN THE POND TO
DESIGN CAPACITY.
24. TEMPORARY SEDIMENTATION BASINS
A. THE TEMPORARY SEDIMENTATION BASINS SHALL BE CONSTRUCTED AND MADE
OPERATIONAL PRIOR TO DISTURBANCE OF 10 OR MORE ACRES DRAINING TO A
COMMON LOCATION.
B. TEMPORARY SEDIMENTATION BASINS ARE REQUIRED PRIOR TO RUNOFF LEAVING
THE CONSTRUCTION SITE OR ENTERING SURFACE WATERS WHEN 10 OR MORE
ACRES OF DISTURBED SOILS DRAIN TO A COMMON LOCATION. THE BASIN MUST
PROVIDE 3,600 CUBIC FEET nF STORAGE BELOW THE OUTLET PER ACRE DRAINED. IF
HYDRAULIC CALCULATIONS ARE AVAILABLE, THE TEMPORARY SEDIMENTATION
BASIN MUST PROVIDE A STORAGE VOLUME EQUIVALENT TO THE 2 -YEAR, 24-HOUR
STORM, BUT IN NO CASE LESS THAN 1800 CUBIC FEET PER ACRE DRAINED. THE
TEMPORARY SEDIMENTATION BASIN MUST BE CONSTRUCTED AND MADE
OPERATIONAL CONCURRENT WITH THE START OF SOIL DISTURBANCE UP GRADIENT
OF THE POND. THE TEMPORARY SEDIMENTATION BASIN SHALL BE DESIGNED TO
PREVENT SHORT CIRCUITING. THE OUTFALL SHALL BE DESIGNED TO REMOVE
FL-OATABLE DEBRIS, ALLOW FOR COMPLETE DRAWDOWN OF THE POND FOR
MAINTENANCE ACTIVITIES, AND HAVE ENERGY DISSIPATION. THE EMERGENCY
SPILLWAY SHALL BE STABILIZED.
C. TEMPORARY SEDIMENTATION BASINS SHALL BE SITUATED OUTSIDE nF SURFACE
WATERS AND ANY REQUIRED BUFFER ZONE, AND MUST BE DESIGNED TO AVOID
DRAINING WETLANDS, UNLESS THE IMPACT IS IN COMPLIANCE WITH THE
REQUIREMENTS OF THIS PERMIT.
D. EXCESSIVE SEDIMENT -LADEN WATER THAT IS NOT PROPERLY FILTERED WILL NOT BE
PERMITTED TO DISCHARGE FROM SIRE.
25. DEWATERING AND BASIN DRAINING
A. TURBID OR SEDIMENT -LADEN WATERS RELATED TO DEWATERING OR BASIN
DRAINING SHALL BE DISCHARGED TO A TEMPORARY OR PERMANENT
SEDIMENTATION BASIN ON THE PROJECT SITE UNLESS INFEASIBLE. THE
TEMPORARY OR PERMANENT BASIN MAY DISCHARGE TO SURFACE WATERS IF THE
BASIN WATER HAS BEEN VISUALLY CHECKED TO ENSURE ADEQUATE TREATMENT
HAS BEEN OBTAINED IN THE BASIN AND THAT THE NUISANCE CONDITIONS WILL
NOT RESULT FROM THE DISCHARGE. DISCHARGE POINTS SHALL BE ADEQUATELY
PROTECTED FROM EROSION AND PROPER VELOCITY DISSIPATION PROVIDED.
B. ALL WATER FROM DEWATERING OR BASIN -DRAINING ACTIVITIES MUST BE
DISCHARGED IN A MANNER THAT DOES NOT CAUSE NUISANCE CONDITIONS,
EROSION IN THE RECEIVING CHANNELS OR ON DOWN SLOPE PROPERTIES, OR
INUNDATION IN WETLANDS CAUSING SIGNIFICANT ADVERSE IMPACTS TO THE
WETLAND.
C. IF FILTERS WITH BACKWASH WATERS ARE USED, THE BACKWASH WATER SHALL BE
HAULED AWAY FOR DISPOSAL, RETURNED TO THE BEGINING OF THE TREATMENT
PROCESS, OR INCORPORATED INTO SITE IN A MANNER THAT DOES NOT CAUSE
EROSION. BACKWASH WATER MAY BE DISCHARGED TO SANITARY SEWER IF
PERMISSION IS GRANTED BY THE SANITARY SEWER AUTHORITY.
26. POLLUTION PREVENTION
A. BUILDING PRODUCTS THAT HAVE THE POTENTIAL TO LEACH POLLUTANTS MUST BE
UNDER COVER TO PREVENT DISCHARGE OR PROTECTED BY AN EFFECTIVE MEANS
DESIGNED TO MINIMIZE CONTACT WITH STORMWATER.
B. PESTICIDES, HERBICIDES, INSECTICIDES, FERTILIZERS, TREATMENT CHEMICALS, AND
LANDSCAPE MATERIALS MUST BE UNDER COVER.
C. HAZARDOUS MATERIALS AND TOXIC WASTE MUST BE PROVIDED TO PREVENT
VANDALISM.
D. SOLID WASTER MUST BE STORED, COLLECTED AND DISPOSED OF IN COMPLIANCE
WITH MINN. R. CH 7035.
E. 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 IN ACCORDANCE WITH MINN. R. CH 7041.
F. DISCHARGE OF SPILLED OR LEAKED CHEMICALS, INCLUDING FUEL, FROM ANY AREA
WHERE CHEMICALS OR FUEL WILL BE LOADED OR UNLOADED SHALL BE PREVENTED
USING DRIP PANS OR ABSORBENTS. SUPPLIES SHALL BE AVAILABLE AT ALL TIMES TO
CLEAN UP DISCHARGED MATERIALS AND THAT AN APPROPRIATE DISPOSAL
METHOD MUST BE AVAILABLE FOR RECOVERED SPILLED MATERIALS.
27. DESIGN CALCULATIONS
SEE STORMWATER REPORT FOR INFILTRATION SYSTEM DESIGN.
28. CONSTRUCTION OF FILTRATION BASINS
A. NO HEAVY TRAFFIC ON FILTRATION AREAS. CONSTRUCTION TO BE DONE WITH
MINIMAL COMPACTION COMPACTION TO FILTRATION AREAS. IF COMPACTION IS
ENCOUNTERED, BASIN SOILS FOR THE FIRST & MUST BE REMOVED & RELAID.
B. INFILTRATION SYSTEMS MUST NOT BE EXCAVATED TO FINAL GRADE UNTIL THE
CONTRIBUTING DRAINAGE AREA HAD BEEN CONSTRUCTED AND FULLY STABILIZED
UNLESS RIGOROUS EROSIN PREVENTION AND SEDIMENT CONTROLS ARE
PROVIDED(PART III.D.1.C.).
C. WHEN AN INFILTRATION SYSTEM IS EXCAVATED TO FINAL GRADE (OR WITHIN
THREE (3) FEET OF FINAL GRADE), THE PERMITTEE(S) MUST EMPLOY RIGOROUS
EROSION PREVENTION AND SEDIMENT CONTROLS (E.G., DIVERSION BERMS) TO
KEEP SEDIMENT AND RUNOFF C-OMPLETELY AWAY FROM THE INFILTRATION AREA.
THE AREA MUST BE STAKED -OFF AND MARKED SO THAT HEAVY CONSTRUCTION
VEHICLES OR EQUIPMENT WILL NOT COMPACT THE SOIL IN THE PROPOSED
INFILTRATION AREA.
D. Tn PREVENT CLOGGING OF THE INFILTRATION -OR FILTRATION SYSTEM, THE
PERMITTEE(S) MUST USE A PRETREATMENT DEVICE SUCH AS A VEGETATED FILTER
STRIP, SMALL SEDIMENTATION BASIN, nR WATER QUALITY INLET (E.G., GRIT
CHAMBER) TO SETTLE PARTICULATES BEFORE THE STORMWATER DISCHARGES INTO
THE INFILTRATION OF FILTRATION SYSTEM.
30. POST CONSTRUCTION - THE WATER QUALITY VOLUME THAT MUST BE RETAINED ON SITE
BY THE PROJECT'S PERMANENT STORMWATER MANAGEMENT SYSTEM DESCRIBED IN
PART III.D. SHALL BE ONE (1) INCH OF RUNOFF FROM THE NEW IMPERVIOUS SURFACES
CRATED BY THE PROJECT. SEE PART III.D.1. FOR MORE INFORMATION ON INFILTRATION
DESIGN, PROHIBITIONS AND APPROPRIATE SITE CONDITIONS.
31. RESPONSIBILITIES
A. THE OWNER MUST IDENTIFY A cnNTRACTOR WHO WILL -OVERSEE THE SWPPP
IMPLEMENTATION AND THE PERSON RESPONSIBLE FOR INSPECTION AND
MAINTENANCE:
B. THE OWNER MUST IDENTIFY THE A PERSON WHO WILL BE RESPONSIBLE FOR LONG
TERM OPERATIONS AND MAINTENANCE OF THE PERMANENT STORMWATER
MANAGEMENT SYSTEM:
32. TRAINING REQEMENTS - THE PERMITTES(S) SHALL ENSURE THE FOLLOWING INDIVIDUALS
IDENTIFIED IN THIS PART HAVE BEEN TRIANED IN ACCORDANCE WITH THIS PERMIT'S
TRAINING REQUIREMENTS.
1. WHO MUST BE TRAINED:
1.1. INDIVIDUAL(S) PREPARING THE SWPP FOR THE PROJECT
1.2. INDIVIDUAL(S) OVERSEEING IMPLEMENTATION OF, REVISING, AND AMENDING THE
SWWP AND INDIVIDUALS(S) PERFORMING INSPECTIONS AS REQUIRED IN PART IV.E.
ONE OF THESE INDIVDUAL(S) MUST BE AVAILABLE FOR AN ONSITE INSPECTION
WITHIN 72 HOURS UPON REQUEST BY THE MPCA.
1.3. INDIVIDUAL(S) PERFORMING OR SUPERVISING THE INSTALLATION, MAINTENANCE
AND REPAIR OF BMPS. AT LEAST ONE INDIVIDUAL ON A PROJECT MUST BE TRAINED
IN THESE JOB DUTIES.
2. TRAINING CONTENT: - THE CONTENT AND EXTENT OF TRAINING MUST BE
COMMENSURATE WITH THE INDIVIDUAL'S JOB DUTIES AND RESPONSIBILITIES WITH
REGARD TO ACTIVITIES COVERED UNDER THIS PERMIT FOR THE PROJECT. AT LEAST ONE
INDIVIDUAL PRESENT ON THE PERMITTED PROJECT SITE (OR AVAILABLE TO THE PROJECT
SIRE IN 72 HOURS) MUST BE TRAINED IN THE JOB DUTIES DESCRIBED IN PART III.F.1.B. AND
PARTI I I. F.1.C.
3. THE PERMITTEE(S) SHALL ENSURE THAT THE INDIVIDUALS ARE TRAINED BY LOCAL, STATE,
FEDERAL AGENCIES, PROFESSIONAL OR OTHER ENTITIES WITH EXPERTISE IN EROSION
PREVENTION, SEDIMENT CONTROL, PERMANENT STORMWATER MANAGEMENT AND THE
MINNESOTA NPDES/SDS CONSTRUCTION STORMWATER PERMIT. AN UPDATE
REFESHER-TREINING MUST BE ATTENDED EVERY THREE (3) YEARS STARTING THREE (3)
YEARS FROM THE ISSUANCE DATE OF THIS PERMIT.
UNIVERSITY OF MINNESOTA
William Sharbono
Design of Construction SWPPP (May 31 2020)
33. LIST OF CONTACTS
TILE
NAME
COMPANY
PHONE NUMBER
OWNER
TBD
FOREST LAKES SCHOOLS
TBD
PROJECT MANAGER
VICKI VAN DELL
LOUCKS ASSOCIATES
763-424-5505
SWPPP DESIGNER
BILL SHARBONO
LOUCKS ASSOCIATES
763-424-5505
CONTRACTOR
TBD
TBD
TBD
SITE MANAGER
TBD
TBD
TBD
* MPCA 24HR. HAZARDOUS SPILL HOTLINE: 651-649-5457 OF 80420798
NOTES:
1. PLACE BOTTOM EDGE OF FENCE INTO 6 IN DEEP TRENCH
AND BACKFILL IMMEDIATELY.
2. POSTS SHALL BE:
• 6 FT MAX. SPACING.
• 2 IN X 21N HARDWOOD, OR STANDARD STEEL T -TYPE
FENCE POSTS.
• 5' MIN. LENGTH POSTS, DRIVEN 2 FT INTO THE
GROUND.
3. ATTACH FABRIC TO WOOD POST WITH A MIN. OF 5, 1
INCH LONG STAPLES.
4. ATTACH FABRIC TO STEEL POST WITH A MIN. OF 3 ZIP
TIES IN TOP 8 INCHES OF FABRIC.
GEOTEXTILE FABRIC
PER MNDOT 3886
f
�
6"
LE
:R
886
6"
I i _� c VVMJnw
NOTES:
1. ROCK SIZE SHOULD BE 1" TO 2" IN SIZE SUCH AS MN/DOT CA -1 OR
CA -2 COURSE AGGREGATE. (WASHED)
2. A GEOTEXTILE FABRIC MAYBE USED UNDER THE ROCK TO PREVENT
MIGRATION OF THE UNDERLYING SOIL INTO THE STONE.
LOUCKS PLATE No.
In LoUCKS ROCK CONSTRUCTION 3003
ENTRANCE
DRAWN 2/2016
1-
In LOUCKS
SIGN
0
15'(MIN)
n
M_
24"X36"X3/4" PLYWOOD
PAINT PLYWOOD FACE WHITE
WITH 4"MIN. STENCILED
LETTERS PAINTED BLACK
87REATED 4"X4" POST
MIN. 2FT HIGH
SOIL BERM
4 d
WASHOU4EA'MU�T BE IMPERMEABLE. a
CONTRACTOR TO CONSTRUCT APPROPRIATE MIN. 8" DIA
IMPERMEABLE CONTAINMENT SYSTEM & I BID LOGS
REMOVE/PUMP LIQUID ONCE THE LEVEL
d EXCEEDS TWO-THIRDS OF THE SURROUNDING
BARRIER Q
Q d d
a d �
CONTRACTOR TO PLACE THE CONCRETE WASHOUT
AREA NEAR THE CONSTRUCTION ENTRANCE
MINIMUM DOUBLE
STITCHED SEAMS ALL
AROUND SIDE PIECES
AND ON FLAP POCKETS
FRONT, BACK, AND
BOTTOM TO BE MADE
FROM SINGLE PIECE
OF FABRIC
CONCRETE WASHOUT
INLET SPECIFICATIONS AS PER THE
PLAN DIMENSION LENGTH AND
WIDTH TO MATCH FLAP POCKET
-8
LOUCKS PLATE NO.
3005
DRAWN 2/2016
12" OVERFLOW HOLES
2„ (2" X 4" HOLE SHALL
BE HEAT CUT INTO
ALL FOUR SIDE
PANELS)
1(2
FILTER BAG INSERT
(CAN BE INSTALLED IN ANY INLET TYPE
WITH OR WITHOUT A CURB BOX)
NOTES:
SEE SPECS. 2573, 3137, 3886 & 3891.
MANUFACTURED ALTERNATIVES LISTED ON Mn/DOT'S APPROVED PRODUCTS LIST MAY BE SUBSTITUTED.
1O ALL GEOTEXTILE USED FOR INLET PROTECTION SHALL BE MONOFILAMENT IN BOTH DIRECTIONS,
MEETING SPEC. 3886.
O2 FINISHED SIZE, INCLUDING POCKETS WHERE REQUIRED SHALL EXTEND A MINIMUM OF 10 INCHES
AROUND THE PERIMETER TO FACILITATE MAINTENANCE OR REMOVAL.
O3 INSTALLATION NOTES:
3.1. DO NOT INSTALL FILTER BAG INSERT IN INLETS SHALLOWER THAN 30 INCHES, MEASURED FROM
THE BOTTOM OF THE INLET TO THE TOP OF THE GRATE.
3.2. THE INSTALLED BAG SHALL HAVE A MINIMUM SIDE CLEARANCE OF 3 INCHES BETWEEN THE
INLET WALLS AND THE BAG, MEASURED AT THE BOTTOM OF THE OVERFLOW HOLES.
3.3. WHERE NECESSARY THE CONTRACTOR SHALL CLINCH THE BAG, USING PLASTIC ZIP TIES, TO
ACHIEVE THE 3 INCH SIDE CLEARANCE.
FLAP POCKETS SHALL BE LARGE ENOUGH TO ACCEPT WOOD 2 INCH X 4 INCH OR USE A ROCK SOCK
OR SAND BAGS IN PLACE OF THE FLAP POCKETS.
MARTIN PE VZNER
ENGINEERING
8o3o Old Cedar Ave. S
Bloomington, MN 55425
Voice: 952"854-r876
Fax; 952-854"1948
KRECH, O'BRIEN,
MUELLER & ASSOCIATES, INC
architecture Structural Engineering Interior Desig
6115 Cahill Avenue
Inver Grove Heights
Minnesota 55076
651.451.4605
fax 651.451 .0917
kornainc(@komainc.com
. LroucKs
PLANNING
CIVIL ENGINEERING
LAND SURVEYING
LANDSCAPE ARCHITECTURE
ENVIRONMENTAL
7200 Hemlock Lane, Suite 300
Maple Grove, MN 55369
763.424.5505
www.loucksinc.com
CADD files prepared by the Consultant for this project are instruments
of the Consultant professional services for use solely with respect to
this project. These CADD files shall not be used on other projects, for
additions to this project, or for completion of this project by others
without written approval by the Consultant. With the Consultant's
approval, others may be permitted to obtain copies of the CADD
drawing files for information and reference only. All intentional or
unintentional revisions, additions, or deletions to these CADD files
shall be made at the full risk of that party making such revisions,
additions or deletions and that party shall hold harmless and indemnify
the Consultant from any & all responsibilities, claims, and liabilities.
I hereby certify that this plan, specification or report was
prepared by me or under my sof ion and that
I am a duly Licen es I En r under the
laws of the at f M n sota A '
c J ell - PE 1v
is o. 41352
Date 6/19/17
CITY
SUBMITTAL
Z N
O ,L
P:O
PROJECT: 16174
DRAWN BY: GAJ
CHECKED BY: VJV
DATE: 6/20/2017
REVISIONS:
6/19/17 Bid Pack 1
6/20/17 City Submittal
LOUCKS PLATE NO. LOUCKS PLATE NO. SWPPP
In DUCKSSILT FENCE 3000 min LQUCKS INLET PROTECTION - 3013
PRE -ASSEMBLED OR MACHINE SLICED FILTER BAG INSERT 2 OF 2
DRAWN 2/2016 DRAWN 2/2016
Cu