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ATTACHMENT A: SITE SPECIFIC SWPPP DOCUMENT
<br />Civilbite
<br />G R C7 U P
<br />Ift Minnesota Pollution Attachment A:
<br />Control Agency
<br />J Y
<br />520 Lafayette Road North P
<br />SWPPP Site Specific Document
<br />St Paul, MIN sslss-4144 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: 3600 IVY PLACE
<br />City or Township: ORONO State: MN Zip code: 55391
<br />Latitudellongitude of approximate centroid of project: 44-926034,-93.613450
<br />Method of collection of latutudellongitude:
<br />❑ GPS ❑ Online tool ❑USES 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 />❑ Residential ❑ Commercialllndustrial ❑ Road construction
<br />❑ Residential and road construction ❑ Other (describe):
<br />Cumulative Impervious surface:
<br />Existing area of impervious surface: 4.0 (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 />(dilob, ,pond, wetland, lake, (See Stormwater Permit (See Stormwater Permit
<br />Water bodv ID* I Name of water
<br />I I I n Yes i-1 No I n Yes i-1 No
<br />I I I
<br />[-]Yes [-]No
<br />I -]Yes ❑ No
<br />' Water Bodyfdantrffeaflon iD might not be avadabfe for all water bodies. Use the Special and Impaired Waters Search Toot af:
<br />f 1 9 p p
<br />www nca.state rnn usJwareristo m�vater/stornwafcr-r..htm1
<br />Impaired water for the following poflutant(s) or sfrewor(s#: phosphorus, turhhiify, dfwofved oxygen, or bloftc impairment.
<br />www. pca.state. mn.as - 651-296-6300 - 800-657-3864 - TTY 651-282.5332 or 800-557-3864 • Available in alternative formats
<br />wq-strm2-12 - 4113J09&8116113 Page 1 of 7
<br />Cbite
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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 0 1 9
<br />General Construction Project Information
<br />Describe the construction activity (what will be built, general timeline, 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 -
<br />Attach maps (U.S. Geologic Survey 7.5 minute quadrangle, National Wetland inventory maps or
<br />equivalent) showing the location
<br />and type of all receiving waters, including wetlands, drainage ditches, stormwater ponds
<br />or basins, etc. that will receive
<br />runoff from the project. Use arrows showing the direction of flaw and distance to the water
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<br />www,pca.state.mn_us 651-Z96-6300 - 800.657.3864 TTY 651-282-5332 or 800-557-3SfA Avaitabte in alternative formats
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<br />General Site Information (Ill.b)
<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 BMPs as
<br />necessary. IILA.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 (111. 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 tow 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 mile from the project boundaries that will receive stormwater
<br />runoff from the site (identifiable on maps such as USES 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 M No
<br />If yes, describe how these measures were addressed in the SWPPP. (III.A,6.)
<br />NIA
<br />5. 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 7060? ❑ Yes ® 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 ❑ 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 S.6 and Part II 1,A- 8)
<br />7. Does the site discharge to a water that Is listed as impaired for the following pollutants) 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.uslwaterlstormwaterlston,nwater-e.htmi. ❑ Yes M 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 BMPs 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.
<br />www,Pc ma.state.n.us - 651-296-6300 - 800-657-3864 - TTY 651-282.5332 or 800-657-3864 • Available in alternative formats
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<br />ivilSite
<br />Cs R O U P -
<br />NIA
<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 (III.D.)
<br />GO vilSite
<br />G R C} U P -
<br />5, Describe Methods to be used far -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 tJTiLZED.
<br />T For drainage ordiversion ditches. describa practices to stabilize the nom l wettedperimeterwithin 200 lineal feet of the
<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 sweles within 14 calendar days after connecting to a surface water, property edge and construction in that area has
<br />temporarily or permanently ceased.
<br />NIA - 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 appllcable, 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 />Seditment Control Practices (IV.Q
<br />Describe the methods of sediment control BMPs 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 he 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 />S. 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 pians to preserve a 50 -foot natural buffer between the project's soil disturbance and a surface water or pians 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 />8. Describe plans for use of sedimentation treatment chemicals (e.g., polymers, flocculants, etc.) see Part IV,C.10 of the permit:
<br />NIA
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<br />Pollution Prevention Management Measures (iV.F)
<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 />P li P p
<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 />5. 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 PRiIDVIDER.
<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 />8. 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 cover) 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)
<br />www.pca.state,mn_us 651-276-6300 800-657-3864 TTY 651 282-5332 or 800 557 3864 Available in alternative formats www, pca. state. mn.us 651.296-6300 800.657.3864 TTY 651-282.5332 or 800-657-3864 AvaitatAe in alternative formats
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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 Z 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
<br />(Ca07H0
<br />sRote
<br />M o U p
<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, IIIA
<br />DEVELOPMENT, LLC
<br />1. Will the project create a new cumulative impervious surface greater than or equal to one acre? L]Yes ® No Dewatering and basin Draining (iV.D)
<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 includs dewatering or basin draining? ❑ Yds M No IU
<br />Part IIID of the permit) through Infiltration unless prohibited due to one of the reasons in Part 111-0.1.j_ If infiltration is prohibited If yes, describe measures to be used to treatldispose 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
<br />2. Describe which method will be used to treat runoff from the new impervious surfaces created by the project (III.D):
<br />• Wet sedimentation basin
<br />•
<br />Infiltration/Filtration
<br />Regional ponds
<br />+ Combination of practices
<br />Include all calculations and design information for the method selected. See Part IIID of the permit for specific requirements
<br />associated with each method.
<br />I N Fi LTRATI O NIF I LTfiAT 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 of 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 />NIA
<br />Erosion Prevention Practices (IV,B)
<br />Describe the types of temporary erosion prevention BMPs 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 COVER 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 tackifiers,
<br />hydromulches, etc. are not acceptable soil stabilization methods for any part of a drainage ditch or swaie)
<br />FINAL STABILLZATION OF SWALES WILL BE SOD.
<br />www. pca. state. mn. Lis 651-296-6300 - 800-657-3854 - TTY 651-282.5332 or 800-657-3864 • Available in alternative formats
<br />wq-strm2.12 - 4113109&8116113 Page 4 of 7
<br />2, Will the project include use of filters for backwash water? ❑ Yes ❑ No
<br />If yes, describe how filter backwash water will be managed on the site or properly disposed (see Part II1.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 ❑ No
<br />2. If proximity to bedrock or road projects where the lack of right of way precludes the installation of any of the permanent
<br />stormwater management practices, then other treatment such as grassed swales, smaller ponds, or grit chambers is required
<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 />4. Describe the undisturbed buffer zone to be used (not less than 100 linear feet from the special water).
<br />5. 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 />N/A
<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 Z 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 />3TORMWATER INSPECTION CHECKLIST"
<br />www.pca.state.mn_us • 651-295-6300 - 800-657.3864 TTY 651-252.5332 or 800-557-3864 • Available in alternative formats
<br />wq-strm2.12 • 4113109 & 81161 f 3 Page 6 of 7
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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 />Mathew R. Pavek
<br />DATE 06/07/18 LICENSE NO. 44263
<br />ISSUE/SUBMITTAL SUMMARY
<br />DATE DESCRIPTION
<br />06/07/18 1 CONSTRUCTION PLANS
<br />REVISION SUMMARY
<br />'ROJECT NO.: 17059
<br />SWPPP -ATTACHMENTS
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