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Name of Water Body
<br />BMP
<br />QUANTITY
<br />INLET PROTECTION
<br />USEPA
<br />Approved
<br />TMDLl
<br />11 EA
<br />SILT FENCE
<br />YES
<br />1350 LF
<br />ROCK CONSTRUCTION
<br />ENTRANCE
<br />1 EA
<br />Name of Water Body
<br />Type (ditch,
<br />pond, wetland,
<br />lake, etc.)
<br />Append, A
<br />Special Water?
<br />Flows to
<br />Impaired Water
<br />within 1 mile?
<br />USEPA
<br />Approved
<br />TMDLl
<br />Mississippi River
<br />River
<br />YES
<br />NO
<br />NO
<br />GENERAL PROJECT INFORMATION:
<br />RESPONSIBLE PARTIES:
<br />The Contractor and Owner must apply for coverage under the MPCA's General Storm Water Permit for
<br />Construction Activity a required by the National Pollutant Discharge Elimination System (NPDES) Phase II
<br />program. Coverage under the permit will begin automatically 7 calendar days after the postmarked date
<br />on the permit application. [Longer time frames apply to sites that: (1) disturb areas greater than 50
<br />acres AND discharge within 1 mile of a Special or Impaired Water: or (2) Use alternative storm water
<br />treatment techniques].
<br />SWPPP Preparers BOLTON & MENK, INC
<br />PROJECT LOCATION:
<br />Contractor:
<br />Person Responsible
<br />For Inspections:
<br />Party Responsible for
<br />Long Term 0 &M of
<br />Permanent Storm Water
<br />Management Facility:
<br />County, State
<br />Anoka, MN
<br />Township
<br />32
<br />Range
<br />25
<br />Sections)
<br />28
<br />Latitude
<br />45.2315
<br />Longitude
<br />— 93.4568
<br />PROJECT DESCRIPTION:
<br />This project includes disturbance of approximately 2.4 acres. Construction activities include water main,
<br />sanitary sewer, storm sewer, bituminous parking, proposed building, and landscaping.
<br />Soils on the site are primarily of Hydrologic Sol Group Type A, with high infiltration capacity.
<br />Planned Construction Start Date: 10/1/2010
<br />Estimated Construction Completion Date: 10/1/2011
<br />PROJECT AREAS:
<br />Total Project Size (disturbed area) = 2.35 AC
<br />Existing area of impervious surface =
<br />Post construction ar e of impervious surface =
<br />Total new impervious surface area created =
<br />STORM WATER MANAGEMENT:
<br />Type of storm water management used if more than 1 acre of new impervious surface is created:
<br />Wet sedimentation basin
<br />Infiltration
<br />Filtration
<br />Owner: PSD, LLC5280
<br />Required Water Quality Volume;
<br />Design Water Quality Volume:
<br />Elevation of Water Quality Volume Storage:
<br />Surface Area at Water Quality Volume Storages
<br />Allowable Discharge of Water Ouollty Volume:
<br />Designed Discharge for Water Quality Volume:
<br />Required Infiltration Volume:
<br />Designed Infiltration Volume:
<br />0 AC
<br />1.9 AC
<br />1,9 AC
<br />Regional pond
<br />Permanent storm water
<br />management not required
<br />N/A
<br />N/A
<br />N/A
<br />N/A
<br />N/A
<br />N/A
<br />N/A
<br />N/A
<br />MATT KUKER 763,427,5995
<br />Contact Person Phone
<br />ADAM NAFSTAD 763.433.2851
<br />Contact Person Phone
<br />Contact Person Phone
<br />Contact Person Phone
<br />Contact Person
<br />Alternative methods
<br />Phone
<br />Due to the size of the disturbance and the total amount of new impervious area, this site requires
<br />permanent storm water treatment. A regional detention basin downstream has been sized
<br />by the City of Ramsey to handle development in this orea, and the Owner has obtained permission
<br />to discharge into the regional basin.
<br />Existing discharge patterns are maintained in the proposed condition. The parking lot tends to
<br />drain tram west to east. In the southeast corner of the site, the proposed 24" moinline storm sewer
<br />e
<br />II discharge into the 27" city mointoined storm s system. From there, on 88" concrete arch
<br />pipe discharges storm water runoff to the regional basin,
<br />Pee
<br />,,...._e.,.....
<br />RECEIVING WATERS:
<br />Surface waters which will receive storm wafer from the site within 1 mile of project boundary. Include
<br />waters shown on USGS 7,5 minute quad and all waters identified in Appendix A of the permit,
<br />Impairment:
<br />CONSTRUCTION ACTIVITY NOTES:
<br />EROSION PREVENTION PRACTICES:
<br />Phased construction will be used to extent practical or as Indicated in the plans to minimize exposed soils.
<br />Areas not to be disturbed shall be delineated with flags, takes, signs, silt fence, etc. prior to work
<br />beginning. The normal wetted perimeter of all ditches o wales, including storm water m nogement pond
<br />slopes, that drain waters from the site must be stabilized within 200 of any property edge or discharge
<br />point, including storm sewer inlets, within 24 hours of connection.
<br />Energy dissipation or other outlet treatment must be installed within 24 hours of connection,
<br />All exposed soils must be stabilized as n s possible but in no case later than 14 days after the
<br />construction activity has temporarily or permanently ceased
<br />Seed and /or sod, fertilizer, and mulch shall be placed as indicated In the plans and project specifications
<br />Rapid stabilization shall be of type and quantity indicated in the project specifications. Additional
<br />rapid stobilizotion may be necessary to minimize e ra
<br />n throughout the dution of the project. Type
<br />and quantity shall be determined by the engineer or i prior to installation.
<br />If the Contractor stockpiles material o n site, he shall install the appropriate er control devices
<br />oround the stockpile and perform the best management practices passible is avo erasion from the
<br />stockpile,
<br />Temporary (or permanent) sedimentation ponds are required for areas > 10 acres of disturbed soils
<br />draining soils draining to one point.
<br />SEDIMENT CONTROL PRACTICES;
<br />Installation of silt fence and all other down gradient sediment protection measures shall be completed
<br />prior to commencement of upstream land disturbing activities.
<br />Silt fence shall be installed along constant contours with continuous lengths not to e eed 600 feet
<br />As indicated on plans, silt fence will be periodically broken and hooked upslope in "J %hook" or smile"
<br />patterns to provide ponding and slow runoff.
<br />No unbroken slope lengths greater than 75 feet are permitted when slope is 3;1 or greater. Slope shall
<br />be broken with silt fence or biorolls as indicated on plans.
<br />Install ditch checks (Biorolls) as shown in plan. Ditch checks to be installed after street is removed and
<br />left in place until final restoration is established.
<br />Vehicle rocking to be minimized to all practical extents. All eroded material that leaves the construction
<br />zone shall be collected by the contractor and returned to the site at the contractors expense.
<br />All stock piles shall be surrounded by silt fence and seeded with temporary seed and mulch. See erosion
<br />and sediment control plops.
<br />All site storm sewer inlets, as well as off site downstream inlets with potential to receive sediment, shall
<br />u
<br />be protected with approved inlet protection m at all times. Inlets shall remain protected until
<br />site is 1009 stabilized and vegetation is of least 709 established. Inlet protection may be removed in
<br />winter, if the project has an approval letter from jurisdictional :authority or can produce it with n 72 hours.
<br />TEMPORARY SEDIMENTATION BASINS & DEWATERI NG:
<br />Temporary sedimentation basins ore required prior to runoff leaving the construction site a entering surface
<br />waters when 10 a of disturbed soils drain to a common location. The basin must provide
<br />3,600 cubic feet of storage below the outlet per acre drained. If hydraulic calculations are vailable, the
<br />temporary sedimentation basin must provide a storage volume quivalent to the 2 —year, 24 —hour storm,
<br />but in no c e less than 1800 cubic feet per acre drained. T e emparary sedimentation basin must be
<br />co strucied and made operational concurrent with the start of sail disirubonce upgradient of the pond.
<br />ereorasorvu woware urvosref w"s �.o ou N vsN
<br />ADAM NAFST4D, PE
<br />tic xa 9
<br />871672010 acN
<br />1 B C LTC) N .60.. ME IN JC _
<br />Consulting Engineers Sc Surveyors
<br />MN SLEEPY EYE, MN
<br />BURNSVILLE, MN CHASKA, MN RAMSEV,MN MAPLEWOODL MN R AMES, 1A
<br />All dewaiering on site during construction must be routed to temporary sedimentation basins.
<br />Temporary sedimentation basins must be drained within 48 hours of any rainfall event. If the rock
<br />filtered outlets plug o e the pond not to drain within 48 hours, ponds are to be drained with pumps.
<br />Pump Inlets should be protected with b geo {extlle membrane and rock filer setup as shown in the details,
<br />or approved alternative, Excessive sediment —laden water that is net properly filtered will not be
<br />permitted to discharge from site.
<br />Dewatering practices c not cause downstream nuisance conditions, erosion, or non — permitted wetland
<br />inundation causing ad ease impacts.
<br />POLLUTION PREVENTION:
<br />All solid waste collected from the construction site must be disposed of in accordance with MPCA disposal
<br />requirements.
<br />Concrete washout must be contained in device such as provided by Neaton Brothers Concrete Washout LLC,
<br />or equivalent unit. Unit must be maintained to manufacturer recommendation.
<br />All hazardous materials (e.g.. oil, gasoline, fuel, antifreeze, paint, cleaning solvents, curing compounds,
<br />fertilizers, etc.) must be properly stored (including secondary containment when necessary) to prevent spills,
<br />leaks, or other discharge. Storage and disposal of hazardous waste must be in compliance with MPCA
<br />regulations.
<br />External washing areas be limited to a defined area of the site. All runoff containing any hazardous
<br />material must be properly collected and disposed of. Defined a must be contained with heavy— or
<br />super —duty silt fence. NO ENGINE DEGREASING ALLOWED ON SITE.
<br />The contractor is responsible for monitoring air pollution and e n ring it does not exceed levels set by
<br />state, or federal regulations. This includes dust created by work being performed on the site. Air
<br />pollution and dust control correction is o nsidered incidental to the unit bid prices for which work is
<br />being performed. Additional dust control measures may be required by the Engineer.
<br />INSPECTION & MAINTENANCE:
<br />The permittees must routinely inspect the construction site once every seven (7) days during active
<br />construction and within 24 hours of a rainfall event greater than 0,5 inches In a 24 hour period.
<br />All inspections performed during construction must be recorded and records retained o site with the
<br />SWPPP in ordance with the storm water permit. Regards must include o site map showing areas of
<br />land disturbing activities and areas where activities have temporarily or permanently ceased.
<br />Silt fence, biorolls and inlet protection devices must be maintained when non — functional or when
<br />accumulated sediment reaches 1/3 of device height.
<br />Off site vehicle tracking to be removed within 24 hours of occurrence
<br />All non—functional 138PS must be repaired, replaced, or supplemented with functional BMPS within 24 hours
<br />of discovery, or as soon as field conditions allow access,
<br />FINAL STABILIZATION.
<br />The permittees must submit a Notice of Termination (N.O.T.) within 30 days of final stabilization or
<br />transferring permit responsibility to another owner or operator,
<br />The Contractor must ensure final stabilization of the site. Final stabilization shall include a minimum of
<br />709 vegetation establishment (1007 stablized) on all pervious areas. .
<br />All temporary erosion control measures and BMPS must be removed as part of the final site stabilization,
<br />unless directed otherwise by owner or engineer.
<br />IMPLEMENTATION SCHEDULE & PHASING:
<br />1) Install inlet protection_
<br />2) Install rock construction entrances and temporary rock check dams.
<br />3) Install subdrain pipe (remove and reinstall check dams as necessary).
<br />4) Install bituminous pavement.
<br />5) Install striping.
<br />6) Remove inlet protection.
<br />7) Add additional temporary BMPS as necessary during construction based on inspection reports.
<br />8) Ensure final stabilization measures ore complete.
<br />9) Submit Notice of Terminotian(NOT) to MPCA within 30 days of final stobilizotion.
<br />RECORD RETENTION:
<br />The SWPPP, all changes to it, and inspections and maintenance records must be kept at the site during
<br />construction. Al awner(s) must retain the following for 3 years after submittal of NOT:
<br />1) SWPPP:
<br />2) Any other permits required for the project:
<br />3) Inspection and maintenance logs;
<br />4) All permanent opera Han and mainienonce agreements for surface woier facilities;
<br />5) All design calculations for temporary and permanent storm water management.
<br />PLAN SHEETS;
<br />Sheet numbers C3, C4, C5, C6 & CB of this plan set ore also considered a part of the SWPPP for this
<br />project.
<br />N 0/ 20
<br />PSD, LLC
<br />RAMSEY TOWN CENTER 1 2TH ADDITION
<br />STORM WATER POLLUTION PREVENTION PLAN
<br />NARRATIVE
<br />SHEET
<br />C3
<br />
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