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ATTACHMENT A: SITE SPECIFIC SWPPP DOCUMENT
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<br />Minnesota Pollution Attachment A■
<br />Control Agency
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<br />R SWPPP is Site Specific D men
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<br />520 Lafayette aid North h o t
<br />St. Paul, MN 5535.5-41195 Stormwater Pollution Prevention Plan (SWPPP)
<br />To comply with the General stormwater Permit for Construction Activity
<br />Doc Type: Stormwater Pollution Prevention Plan
<br />Construction Activity Information
<br />Project name: IVY PLACE
<br />Project location (Briefly describe where construction activity occurs. include address if available.)
<br />Address or describe area: 36001VY PLACE
<br />City or Township: ORONO State: MN Zip code: 55391
<br />Latitudellongitude of approximate centroid of project: 44.9260341, -93-613450
<br />Method of collection of €atttudellongitude:
<br />❑ GPS N Ontine tool ❑USGS Topographic map
<br />All cities where construction will occur: ORONO
<br />All counties where construction will occur: HENNEPIN
<br />All townships where construction will occur:
<br />Project size {number of acres to be disturbed)- 1-7
<br />Project type:
<br />N Pesidentiial ❑ ComrnerciaUlndustrial ❑ Pead construction
<br />❑ Residential and road construction ❑ Other (describe):
<br />Cumulative Impervious surface:
<br />Existing area of impervious surface: 0.0 (to the nearest tenth acre)
<br />Post construction area of impervious surface: 0.4 (to the nearest tenth acre)
<br />Total new area of impervious surface: 0.4 (to the nearest tenth acre)
<br />Receiving waters
<br />TypeI Special water? I Impaired Water?"
<br />(ditch, pond, wetland, lake, (See Stormwater Permit (See Stormwater Permit
<br />ID,
<br />I I I LJ Yes U No I U Yes U No
<br />-
<br />Water i r i
<br />' Walsr Body ldenfiiffcaflon (it]j might not he available for all wets bodies. Use the Speen and Impaired Waters Search Too) at:
<br />uwut_aca.srate mn.ors/warerisfowaterlstarmwater-r..htmf.
<br />Impaired wafer for the following pofiulant(s) or sfressor(s): phosphorus, turbidity, dfssofved axygen, or biotin impairment.
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<br />Dates of construction (Briefly describe where construction activity occurs, Include address if available.)
<br />Construction start date: 04/0112018 Estimated completion date: 0410 1 12 01 9
<br />General Construction Project Information
<br />Describe the construction activity (what will be built, general timellne, etc): THE PROJECT WILL BE THE DEVELOPMENT
<br />OF TWO SINGLE FAMILY HOMES ON A EXISTING VACANT SITE.
<br />Describe soil types found at the project: THE EXISTING SOILS AT THE SITE ARE PRIMARILY SANDY LEAN CLAYS.
<br />Site Location map - Attach maps (U.S. Geologic Survey 7.5 minute quadrangle.. National Wetland Inventory maps or
<br />equivalent) showing the location and type of ail receiving waters., including wetlands, drainage ditches, stormwater ponds
<br />or basins, etc. that will receive runoff from the project. Use arrows showing the direction of flow and distance to the water
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<br />Generat Site Information (III.A)
<br />1.
<br />Describe the location and type of all temporary and permanent erosion prevention and sediment control Best Management
<br />Practices (BMPs). Include the timing for installation and procedures used to establish additional temporary SMPs as
<br />necessary. (III.A.4.a)
<br />THE PROJECT WILL BE PROTECTED BY TWO (2) MAiN BMP"S, SILT FENCE AND INLET PROTECTION DEVICES.
<br />THE SILT FENCE WILL BE INSTALLED AT THE DOWNHILL LOCATIONS OF THE SiTE AND MONITORED AS
<br />NECESSARY. INLET PROTECTION DEVICES WILL BE INSTALLED IN ALL CATCH BASINS ON THE SITE AND ANY
<br />OFF SITE THAT WILL RECEIVE STORMWATER RUNOFF FROM THIS SITE. AS THE PROJECT PROGRESSES
<br />ADDITIONAL BMP'S SUCH AS EROSION CONTROL BLANKET MAY BE UTILIZED.
<br />2. Attach to this SWPPP a table with the anticipated quantities for the life of the project for all erosion prevention and sediment
<br />control BMPs (III. A. 4.b)
<br />SEE PAGE SW1.3
<br />3. Attach to this SWPPP a site map that includes the following features (III.A.3.b - f):
<br />• Existing and final grades, including dividing lines and direction of flow for all pre and post -construction stormwater
<br />runoff drainage areas located within the project limits.
<br />• Locations of impervious surfaces and soil types.
<br />■ Locations of areas not to be disturbed.
<br />• Location of areas of phased construction
<br />■ All surface waters and existing wetlands within one mite from the project boundaries that will receive stormwater
<br />runoff from the site (identifiable on maps such as USGS 7.5 minute quadrangle maps or equivalent). Where
<br />surface waters receiving runoff associated with construction activity will not fit on the plan sheet, they must be
<br />identified with an arrow, indicating both direction and distance to the surface water.
<br />Methods to be used for final stabilization of all exposed soil areas.
<br />4. Were stormwater mitigation measures required as the result of an environmental, archaeological, or other required local,
<br />state, or federal review of the project? ❑ Yes N No
<br />If yes, describe how these measures were addressed in the SWPPP. (III.A.6.)
<br />N/A
<br />S. Is the project located in a karst area such that additional measures would be necessary to protect drinking water supply
<br />management areas as described in Minn. R. chapters 7050 and 70607 ❑ Yes N No
<br />If yes, describe the additional measures to be used. (III.A.7.)
<br />NIA
<br />6. Does the site discharge to a calcareous fen listed In Minn. R. 7050.0180, subp. 6.b.? ❑ Yes N No
<br />If yes, a letter of approval from the Minnesota Department of Natural Resources must be obtained prior to application for
<br />this permit. (Part i B.6 and Part III.A:B)
<br />7. Does the site discharge to a water that is listed as impaired for the following pollulant(s) or stressor(s): phosphorus,
<br />turbidity, dissolved oxygen or biotic impairment? Use the Special and Impaired Waters Search Tool at:
<br />www.pca.state.mn.ustwaterlstormwaterlstormwater-c.html. ❑ Yes N No
<br />If no, skip to Training.
<br />Does the impaired water have an approved Total Maximum Daily Loads (TMDL) with an Approved Waste Load Allocation
<br />for construction activity? ❑ Yes ® No
<br />If yes:
<br />a- List the receiving water, the areas of the site discharging to it, and the pollutant(s) identified in the TMDL.
<br />b- List the BMPs and any other specific construction stormwater related implementation activities identified in the
<br />TMDL.
<br />If the site has a discharge point within one mile of the impaired water and the water flows to the impaired water but no
<br />specific BMPs for construction are identified in the TMDL, the additional SMPs in Appendix A (C.1, C.2, C.3 & (C.4 -trout
<br />stream)) must be added to the SWPPP and implemented. (iiI.A.7), The additional BMPs only apply to those portions of the
<br />project that drain to one of the identified discharge points.
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<br />9. Identify adjacent public waters where the Minnesota Department of Natural Resources (DNR) has declared "work in water
<br />restrictions" during fish spawning timeframes
<br />N/A
<br />Selection of a Permanent Stormwater Management System (11I.D,)
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<br />5. Describe Methods to be used for energy dissipation at pipe outlets (e.g., rip rap, splash pads, gabions, etc.
<br />RIP RAP WILL BE UTILIZED AT PIPE OUTLETS.
<br />6. Describe Methods to be used to promote infiltration and sediment removal on the site prior to offsite discharge, unless
<br />infeasible (e.g., direct stormwater flow to vegetated areas):
<br />DISCONNECTED IMPERVIOUS AREA AND INFILTRATION AREAS WILL BE UTILZED.
<br />7 For drainage or diversion ditches, describe practices to stabilize the normal wetied perimeter within 200 lineal feet of th
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<br />property edge or point of discharge to surface water. The last 200 lineal feet must be stabilized within 24 hours after
<br />connecting to surface waters and construction in that portion of the ditch has temporarily or permanently ceased for all
<br />discharges to Special, Impaired or "work in water restrictions". All other remaining portions of the temporary or permanent
<br />ditches or swales within 14 calendar days after connecting to a surface water, property edge and construction in that area has
<br />temporarily or permanently ceased.
<br />N/A - NO DITCHES ON SITE
<br />S. Describe additional erosion prevention measures that will be implemented at the site during construction (e.g., construction
<br />phasing, minimizing soil disturbance, vegetative buffers, horizontal slope grading, slope draining/terracing, etc.)'
<br />OTHER EROSION CONTROL PRACTICES INCLUDE BUT NOT LIMITED TO; MINIMIZE SITE EXPOSURE WHEN
<br />POSSIBLE,
<br />9. If applicable, include additional requirements in Appendix A Part C.3 regarding maintaining a 100 -foot buffer zone or installing
<br />redundant BMPs for portions of the site that drain to special waters).
<br />N/A
<br />10. If applicable, describe additional erosion prevention BMPs to be implemented at the site to protect planned infiltration areas
<br />MINIMIZE SITE EXPOSURE IN AREAS ADJACENT TO INFILTRATION AREA.
<br />Sediment Control Practices (IV.C�
<br />Describe the methods of sediment control EMI's to be Implemented at this site during construction to minimize sediment
<br />impacts to surface waters, including curb and gutter systems
<br />1. Describe Methods to be used for down gradient perimeter control:
<br />SILT FENCE WILL BE INSTALLED AROUND THE ENTIRE PERIMETER OF THE SITE.
<br />2. Describe Methods to be used to contain soil stockpiles:
<br />SEED AND MULCH AS WELL AS EROSION CONTROL BLANKETS WILL BE UTILIZED AS NECESSARY.
<br />3, Describe Methods to be used for storm drain inlet protection:
<br />SEE INLET PROTECTION DETAILS.
<br />4. Describe Methods to minimize vehicle tracking at construction exits and street sweeping activities:
<br />THE PROJECT WILL UTILIZE A ROCK CONSTRUCTION ENTRANCE.
<br />5. Describe Methods, If applicable, additional sediment controls (e.g., diversion berms) to be installed to keep runoff away from
<br />planned infiltration areas when excavated prior to final stabilization of the contributing drainage area:
<br />INFILTRATION AREAS ARE NOT PROPOSED AS PART OF THiS PROJECT,
<br />6. Describe methods to be used to minimize soil compaction and preserve top soil (unless infeasible) at this site:
<br />LIGHT TRACKED EQUIPMENT WILL BE USED, TOPSOIL WILL BE STRIPPED AND STOCKPILED.
<br />7. Describe plans to preserve a 50 -foot natural buffer between the project's soil disturbance and a surface water or plans for
<br />redundant sediment controls if a buffer is infeasible:
<br />DOUBLE ROW OF SILT FENCE WILL BE INSTALLED ALONG WETLAND.
<br />THIS PROJECT WILL DISTURB WITHIN WETLANDS BUT WILL WORK TO MINIMIZE IMPACTS
<br />S. Describe plans for use of sedimentation treatment chemicals (e.g.. polymers, flocculants, etc.) see Part iV.C.10 of the permit:
<br />N/A
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<br />9, Is the project required to install a temporary sediment basin due to 10 or more acres draining to a common location or 5 acres
<br />or more if the site Is within 1 mile of a special or impaired water? ❑ Yes N No
<br />If yes, describe (or attach plans ) showing how the basin will be designed and constructed in accordance with Part III.0 of the
<br />permit.
<br />N/A
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<br />Pollution Prevention Management Measures (IV.I=)
<br />1. Describe practices for storage of building products with a potential to leach pollutants to minimize exposure to stormwater
<br />ALL BUILDING PRODUCTS WILL BE SEALED AND STORED IN A MANNER TO MINIMIZE EXPOSURE.
<br />2. Describe practices for storage of pesticides, herbicides, insecticides fertilizers treatment chemical. and landscape materials:
<br />ALL LANDSCAPE TREATMENT CHEMICALS WILL BE SEALED AND STORED iN A MANNER TO MINIMIZE EXPOSURE.
<br />3. Describe practices for storage and, disposal of hazardous materials or toxic waste (e.g., oil, fuel, hydraulic fluids, paint
<br />solvents, petroleum-based products, wood preservative, additives, curing compounds, and acids) according to Minn. R. ch.
<br />7045, including restricted access and secondary containment:
<br />ALL HAZARDOUS WASTE WILL BE APPROPRIATELY DISPOSED OF OFF SITE ACCORDING TO LOCAL AND STATE
<br />LAWS.
<br />4. Describe collection, storage and disposal of solid waste in compliance with Minn. R. ch. 7035:
<br />ALL CONSTRUCTION DEBRIS AND SOLiD WASTE WILL BE APPROPRIATELY DISPOSED OF OFF SITE ACCORDING
<br />TO LOCAL AND STATE LAWS,
<br />S. Describe management of portable toilets to prevent tipping and disposal of sanitary wastes in accordance with Minn. R. ch.
<br />7040:
<br />SANITARY AND SEPTIC SERVICES WILL BE PROVIDED TO WORKERS WITH PORTABLE FACILITIES MAINTAINED AS
<br />NEEDED BY THE PROVIDER.
<br />6. Describe spill prevention and response for fueling and equipment or vehicle maintenance:
<br />EMPLOYEES WILL BE TRAINED IN TECHNIQUES DESIGNED TO MINIMIZE SPILLS. VEHICLES AND EQUIPMENT
<br />SHALL BE CHECKED FOR LEAKS.
<br />7. Describe containment and disposal of vehicle and equipment wash water and prohibiting engine degreasing on the site:
<br />ALL CONSTRUCTION VEHICLES SHALL BE WASHED OFF SITE-
<br />S. Describe storage and disposal of concrete and other washout wastes so that wastes do not contact the ground:
<br />ALL CONCRETE WASHOUT SHALL OCCUR OFF SITE.
<br />Final Stabilization (IV.G)
<br />1. Describe method of final stabilization (permanent coven of all disturbed areas:
<br />FINAL STABILIZATION WILL BE ACOMPLISHED WiTH PAVEMENT. SOD AND LANDSCAPE MATERIALS
<br />2. Describe procedures for completing final stabilization and terminating permit coverage (see Part IV.G.1-5):
<br />UPON FINAL STABILIZATION DESCRIBED ABOVE, THE CONTRACTOR AND OWNER SHALL MUTUALLY TRANSFER
<br />THE NPDES PERMIT TO THE NEXT OWNER WITH DOCUMENTS DESCRIBING THE NATURE OF TERMINATION
<br />PROCEDURE.
<br />Documentation of infeasibility: (if Applicable)
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<br />1. Will the project create anew cumulative impervious surface greater than or equal to one acre? ❑ Yes N No Dewatering and Basin Draining (IV.D) '
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<br />4931 W. 35TH ST. SUITE 200
<br />ST. LOUIS PARK, MN 55416
<br />CivilSiteGroup.com
<br />Matt Pavek Pat Sarver
<br />763-213-3944 952-250-2003
<br />LAKE W
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<br />DEVELOPMENT, LLC
<br />If yes, a water quality volume of one inch of runoff from the cumulative new impervious surfaces must be retained on site (see 1• Will the project include dewatering or basin draining? ❑ Yes N No U
<br />LLJ
<br />Part IIID of the permit) through infiltration unless prohibited due to one of the reasons in Part III -D.1 -j- If infiltration is prohibited If yes, describe measures to be used to trealldispose of turbid or sediment -laden water and method to prevent erosion or
<br />identify other method of other volume reduction (e.g., filtration system. Wet sedimentation basin, regional ponding or scour of discharge points (see Part iV, D of the permit): 0
<br />equivalent method
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<br />2. Describe which method will be used to treat runoff from the new impervious surfaces created by the project (IILD):
<br />• Wet sedimentation basin
<br />• Infiltration/Filtration
<br />Regional ponds
<br />• Combination of practices
<br />Include all calculations and design information for the method selected. See Part IILD of the permit for specific requirements
<br />associated with each method.
<br />I N FI LTRATI O NIF I LTRAT ION
<br />Calculations are within the Site Storm Water Management Report and part of this SWPPP as Attachment D.
<br />3. If it is not feasible to meet the treatment requirement for the water quality volume, describe why. This can include proximity to
<br />bedrock or road projects where the lack sof right of way precludes the installation of any permanent stormwater management
<br />practices. Describe what other treatment, such as grasses swales, smaller ponds, or grit chambers, will be implemented to
<br />treat runoff prior to discharge to surface waters. (iII.C)
<br />IT IS FEASIBLE TO MEET REQUIREMENT FOR WATER QUALITY VOLUME.
<br />4. For projects that discharge to trout streams, including tributaries to trout streams, identify method of incorporating temperature
<br />controls into the permanent stormwater management system.
<br />N/A
<br />Erosion Prevention Practices (IV.B)
<br />Describe the types of temporary erosion prevention BIIfIPs expected to be implemented on this site during construction:
<br />1. Describe construction phasing, vegetative buffer strips, horizontal slope grading, and other construction practices to minimize
<br />erosion. Delineate areas not to be disturbed (e.g., with flags, stakes, signs, silt fence, etc.) before work begins.
<br />SILT FENCE WILL BE INSTALLED AT THE DOWNHILL LOCATIONS OF THE SITE.
<br />2. Describe Methods of temporarily stabilizing soils and soil stockpiles (e.g., mulches, hydraulic tackifiers, erosion blankets, etc.):
<br />TEMPORARY EROSION PROTECTION WILL BE SEED AND MULCH AND EROSION BLANKETS WHERE REQUIRED,
<br />WITH PERMANENT COLTER BEING EITHER SOD OR LANDSCAPE FEATURES.
<br />3. Describe Methods of dissipating velocity along stormwater conveyance channels and at channel outlets (e.g., check dams,
<br />sediment traps, rip rap, etc.):
<br />SOD WILL BE UTILIZED ALONG CHANNELS AND RiP RAP AT CHANNEL OUTLETS.
<br />4. Describe Methods to be used for stabilization of ditch and Swale wetted perimeters (Note that mulch, hydraulic soil tackfiers,
<br />hydram ulches, etc. are not acceptable soil stabilization methods for any part of a drainage ditch or Swale)
<br />FINAL STABILIZATION OF SWALES WILL BE SOD,
<br />2, Will the project include use of filters for backwash water? ❑ Yes N No
<br />if yes, describe how filter backwash water will be managed on the site or properly disposed (see Part 111.D.3, of the permit)-.
<br />Additional BMPs for Special Waters and .Discharges to Wetlands (Appendix A, Parts C and D)
<br />1, Special Waters. Does your project discharge to special waters' ❑ Yes N No
<br />2. If proximity to bedrock or road projects where the lark of right of way precludes the installation of any of the pennanent
<br />stormwater management practices, then other treatment such as grassed swales smaller ponds, or grit chambers €s required
<br />9 P 9 P 9 q
<br />prior to discharge to surface waters. Describe what other treatment will be provided.
<br />N/A
<br />3. Describe erosion and sediment controls for exposed soil areas with a continuous positive slope to a special waters, and
<br />temporary sediment basins for areas that drain five or more acres disturbed at one time -
<br />N/A
<br />4. Describe the undisturbed buffer zone to be used (not less than 100 linear feet from the special water).
<br />N/A
<br />S. Describe how the permanent stormwater management system will ensure that the pre and post project runoff rate and volume
<br />from the 1, and 2 -year 24-hour precipitation events remains the same.
<br />6. Describe how the permanent stormwater management system will minimize any increase in the temperature of trout stream
<br />receiving waters resulting in the 1, and 2 -year 24-hour precipitation events.
<br />N/A
<br />7. Wetlands, Does your project discharge stormwater with the potential for significant adverse impacts to a wetland (e.g.,
<br />conversion of a natural wetland to a stormwater pond)? ❑ Yes N No
<br />If Yes, describe the wetland mitigation sequence that will be followed in accordance with Part D of Appendix A.
<br />N/A
<br />Inspections and Maintenance (IV.E)
<br />Describe procedures to routinely inspect the construction site:
<br />• Once every seven (7) days during active construction and,
<br />• Within 24 hours after a rainfall event greater than 0.5 inches in 24 hours, and within seven (7) days after that,.
<br />inspections must include stabilized areas, erosion prevention and sediment control BMPs, and infiltration areas.
<br />INSPECTOR WILL FOLLOW REQUIREMENTS SPECIFIED ABOVE AND FILL OUT "ATTACHMENT B - CONSTRUCTION
<br />STORMWATER INSPECTION CHECKLIST."
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<br />I HEREBY CERTIFY THAT THIS PLAN,
<br />SPECIFICATION, OR REPORT WAS
<br />PREPARED BY ME OR UNDER MY DIRECT
<br />SUPERVISION AND THAT I AM A DULY
<br />LICENSED PROFESSIONAL ENGINEER
<br />UNDER THE LAWS OF THE STATE OF
<br />MINNESOTA.
<br />- Matthew R. Pavek
<br />DATE 07/19/17 LICENSE NO. 44263
<br />ISSUE/SUBMITTAL SUMMARY
<br />REVISION SUMMARY
<br />PROJECT NO.: 17059
<br />PRELIMINARY SWPPP
<br />- ATTACHMENTS
<br />SW1 m4
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