|
STORMWATER MANAGAMENT NOTES
<br />Storm Water Management Plan
<br />The work described to implement the following Storm Water Management Plan (SWMP)
<br />shall be considered part of the Contract Documents and shall be performed by the
<br />Contractor. The work to install and maintain the Best Management Practices (BMP's) to
<br />prevent erosion and provide sediment control shall be in accordance with Permit No. MN
<br />R10000f and shall include, but are not necessarily be limited to, the requirements
<br />contained herein.
<br />1. Construction Activity Information
<br />Project Name: PARKING LOT CONSTRUCTION
<br />Project Address/Location: Section -Township -Range = 18-032-25 AND 75-013-4405
<br />City/Township: City of ELK RIVER State: MN Zip Code: 55330
<br />County Parcel ID Number(s): 11-029-22-24-0029
<br />All cities where construction will occur. City of ELK RIVER
<br />All townships where construction will occur. Not Applicable
<br />All counties where construction will occur. SHERBURNE COUNTY
<br />Project Size (number of acres to be disturbed): 11.03
<br />Project Type: _Residential X Commercial/Industrial
<br />_ Road Construction _ Other (describe)
<br />Cumulative Impervious Surface:
<br />Existing area of impervious surface to nearest quarter acre: 0.25
<br />Post construction area of impervious surface to nearest quarter acre: 10.75
<br />Receiving Waters:
<br />Name of Water Body Type Appendix A Special Water?
<br />Mississippi and Crow River Yes
<br />4, 600 ft (0.87 mi.) from intersection of Mississippi and Crow River to the subject
<br />property.
<br />Dates of Construction
<br />Estimated Construction Start Date: APRIL, 2025
<br />Estimated Completion Date: NOVEMBER, 2025
<br />Contact Information
<br />Owner of Project Site: NICK BABKIN
<br />Business/Firm Name: NORTHSTAR TRUCK & RV PARKING LLC
<br />Federal Tax ID Number: available as needed
<br />State -Tax ID Number: available as needed
<br />Contact Person: NICK BABKIN
<br />Title: OWNER
<br />Name: NICK BABKIN
<br />Phone: 763-913-6874
<br />Mailing Address: 15861 JARVIS STREET NW.
<br />City: ELK RIVER
<br />State: MN Zip Code: 55330
<br />Contractor (Party who will oversee implementation of the SWMP. May be same party as
<br />Owner above): NICK BABKIN
<br />Business/Firm Name: NORTHSTAR TRUCK & RV PARKING LLC
<br />Federal Tax 10 Number- available as needed
<br />State Tax ID Number- available as needed
<br />Contact Person: NICK BABKIN
<br />Title: Owner
<br />Name: NICK BABKIN
<br />Phone: 763-913-6874
<br />Mailing Address: 9961 TROY LANE NORTH
<br />City: MAPLE GROVE
<br />State: MN Zip Code: 55311
<br />General Construction Project Information
<br />Description of the construction activity (what will be built, general time/ins., etc.).
<br />PARKING LOT CONSTRUCTION. The construction activities will indude grading
<br />operations for the construction of surface drainage and utilities. Roof drain sewer
<br />construction, exposed soil stabilization, and bituminous paving will follow grading
<br />operations.
<br />2. General Site Information
<br />Description of the location and type of all temporary and permanent erosion prevention
<br />and sediment control BMP's to be used, including the timing for installation and
<br />procedures used to establish additional temporary BMP 's as necessary.
<br />Contractor shall install and maintain the temporary and permanent erosion prevention
<br />and sediment control BMP's as shown on the accompanying drawing and as described
<br />heroin. The timing shall be in accordance with the Construction Activity Sequence below
<br />and in accordance with sound and proactive construction scheduling and practices.
<br />Accompanying this SWMP is a site plan that includes the following features:
<br />* Existing and proposed grades, including dividing lines and direction of flow for all pre -
<br />and post -construction stormwater 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 />* Method(s) to be used for final stabilization of al exposed soil areas.
<br />Description of stormwater mitigation measures required as the result of an
<br />environmental, archaeological, or other required local, state, or federal review of the
<br />project:
<br />Not applicable to this project.
<br />ENGINEERING DESIGN & SURVEYING
<br />6480 Wayzata Blvd. Minneapolis, MN 55426
<br />OFFICE: 1763) 545-2800 FAX: (763) 545-2801
<br />EMAIL: info@edsmn.com WEBSITE: http://edsmn.com
<br />Description of the type and locations of BMP's appropriate for this site and sufficient to
<br />comply with all applicable requirements of the TMDL implementation plan and
<br />identification of the receiving water and of the areas of project site discharging to an
<br />impaired water that has an approved TMDL implementation plan that contains
<br />requirements for construction Stormwater discharges:
<br />Not applicable to this project.
<br />Selection of Permanent Stormwater Management System
<br />Will the project create a new cumulative impervious surface greater than or equal to one
<br />acre? Yes No X
<br />If yes, a water quality volume of 1/2 inch of runoff from this area must be treated before
<br />leaving the site or entering surface waters (1 inch of runoff from this area if discharging
<br />to special waters).
<br />Method(s) to be used to treat runoff from the new impervious surfaces created by the
<br />project:
<br />_ Wet sedimentation basin _X_I nfiltration/Filtration basin/POND
<br />EXISTING
<br />_ Regional ponds _Combination of practices
<br />Description of treatment method(s) to be used, including design information for each
<br />method:
<br />Existing pond will be used to collect water fromo the roof.
<br />Description of why it is not feasible to meet the treatment requirement for water quality
<br />volume. This can include proximity to bedrock or road projects where the lack of
<br />right-of-way precludes the installation of any permanent stormwater management
<br />practices. Description of what other treatment, such as grassed swales, smaller ponds,
<br />or grit chambers, will be implemented to treat runoff prior to discharge to surface waters:
<br />Not Applicable
<br />Description of how a proposed alternative method to treat runoff from new impervious
<br />surfaces will achieve approximately 80% removal of total suspended solids on an annual
<br />average basis:
<br />Not Applicable
<br />3. Erosion Prevention Practices
<br />Description of construction phasing, vegetative buffer strips, horizontal slope grading,
<br />and other construction practices to be used to minimize erosion:
<br />Stage the soil disturbing activities to minimize the amount of disturbed soil prior to
<br />stabilization. Disturbed areas will be considered stabilized when covered with materials
<br />such as anchored mulch, staked sod, riprap, wood fiber blanket, or other materials that
<br />prevent erosion from occurring. Grass seeding alone will not be considered stabilization.
<br />Disturb only those areas where proposed contours and elevations are shown to differ
<br />from the existing and where removals and other operations are noted. Special areas of
<br />the project site that are not to be disturbed by construction activity are noted on the plan.
<br />Description of temporary erosion protection or permanent cover to be used for exposed
<br />positive slopes within 200 lineal feet of a surface water (stream, lake, pond, marsh,
<br />wetland, reservoir spring, river, storm water basin, storm water drainage system,
<br />waterways, water courses, and irrigation systems whether surface water is natural or
<br />artificial, public or private with maximum time an exposed soil area can remain exposed
<br />when the area is not actively being worked:
<br />Provide year round stabilization to the above mentioned areas in accordance with the
<br />following table:
<br />Maximum Exposure Duration When Area
<br />Steepness of slope (H:V) Is Not Actively Worked
<br />Greater than 3:1
<br />3:1 through 10:1
<br />Less than 10:1
<br />7 Days
<br />14 Days
<br />21 Days
<br />Description of practices to be used to stabilize the normal wetted perimeter of drainage
<br />or diversion ditches within 200 lineal feet of the property edge or point of discharge to a
<br />surface water within 24 hours of connecting the ditch to the surface water.
<br />Install seed, fertilizer, and disc -anchored mulch or temporary wood fiber blanket In
<br />ditches and swal es within 24 hours of connecting the ditch or swale to the surface water
<br />where shown on the plan in accordance with the details.
<br />Description of other erosion prevention practices to be used:
<br />Install the specified energy dissipation method, such as riprap and geotextile fabric, at
<br />pipe outlets within 24 hours of installation. Permanently seed disturbed areas prior to
<br />end of seeding dates specified by MnDOT.
<br />Inspections send weekly and Z' rainfall event inspections records to City Inspector.
<br />I HEREBY CERTIFY THAT THIS PLAN WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION, AND
<br />THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER UNDER THE LAWS OF THE STATE OF
<br />MINNESOTA.
<br />'ail: �q.^+ir ,.y' DATED• 12/31/2024
<br />VLADIMIR SIVRIVER P.E.. NO. 25105
<br />4. Sediment Control Practices
<br />Description of sediment control practices to be used to minimize sediments from
<br />entering surface waters, including curb and gutter systems and storm drain inlets:
<br />Permanent sediment control practices to be used on this project consist of
<br />sedimentation basins. Temporary sediment control practices to be used are silt fence,
<br />culvert inlet protection, storm sewer inlet protection, stone pad exits, ditch checks, and,
<br />if necessary, street sweeping.
<br />5. Dewatering and Basin Draining
<br />If the project includes dewatering or basin draining, describe the BMP's to be used to
<br />prevent the discharge from adversely affecting the receiving waters and downstream
<br />landowners.
<br />N/A
<br />6. Additional BMP's for Special Waters and Discharges to Wetlands
<br />This project does not discharge stormwater directly to a Special Water. This project
<br />does not discharge stormwater directly to wetlands, exept roof drain 6" PVC.
<br />7. Construction Activity Sequence
<br />In addition to performing and sequencing the tasks associated with implementing this
<br />SWMP as described herein and shown on the plan, the Contractor shall perform
<br />construction activities in accordance with the following sequence:
<br />(1) Install silt fence along property line of project site where shown on plan and when
<br />property line is down gradient and within 100 feet of areas to have disturbed soil and
<br />where property line is within 20 feet of soil disturbing and other construction activities.
<br />(2) Install silt fence along edge of wetlands and at other locations shown on the plan.
<br />(3) Install stone exit pads where shown on plan and at other locations where vehicles
<br />and equipment will leave the site onto paved and gravel surfaces.
<br />(4) Construct storm water ponds and related piping and control structures as shown on
<br />the project plans. Install and maintain temporary erosion prevention measures as shown
<br />on the plan.
<br />(5) Install silt fence along bottom of storm water pond inslopes and where shown on the
<br />plan.
<br />(6) Install trunk sanitary sewer.
<br />(7) Complete earthwork activities. Install and maintain sediment control measures such
<br />as ditch checks and stormwater inlet protection.
<br />(8) Complete utility construction. Install and maintain sediment control measures such
<br />as inlet protection as work proceeds.
<br />(9) Remove silt deposits from site, remove silt deposits from stormwater basins.
<br />(10) Provide soil stabilization to disturbed areas by preparing topsoil, seeding, fertilizing,
<br />mulching, anchoring mulch in accordance with plans and specifications.
<br />(11)Remove perimeter silt fence, other silt fence, check dams, and other sediment
<br />control measures upon achieving final stabilization and Owner submits the Notice of
<br />Termination.
<br />8. Inspections and Maintenance
<br />Description of procedures to be taken to routinely inspect the constriction site:
<br />Contractor shall inspect erosion prevention and sediment control BMP's to ensure
<br />integrity and effectiveness. Repair, replace, or supplement non-functional BMP's to
<br />provide continually functional BM P's. Contractor shall inspect the entire construction site
<br />a minimum of once every seven (7) days during active construction and within 24 hours
<br />after a rainfall event greater than 0.5 inches in 24 hours. Inspections shall include
<br />stabilized areas, erosion prevention and sediment control BMP's, and infiltration areas.
<br />Specific tasks associated with the inspection and maintenance of the BMP's include the
<br />following:
<br />* Maintain and retain at the construction site written records of the inspections and
<br />maintenance performed. Records of each inspection and maintenance activity shall
<br />include: Date and time of inspection/maintenance activity; Name of person(s) Performing
<br />the activity Finding of inspection; Recommended corrective actions; Corrective actions
<br />taken; and Date and amount of rainfall events greater than 0.5 inches in 24 hours.
<br />* Repair, replace, or supplement silt fences that become nonfunctional or accumulate
<br />sediment to the level of 1/3 the silt fence height or more within 24 hours of discovery or
<br />as soon as conditions allow access.
<br />* Drain temporary and permanent sediment basins and remove sediment when the
<br />volume of sediment collected reaches 1/2 the permanent storage volume within 72
<br />hours of discovery or as soon as conditions allow access.
<br />* Inspect surface waters, drainage ditches, and stormwater conveyance systems for
<br />evidence of sediment deposited by erosion. Remove deltas and deposited sediment and
<br />restabilize areas where sediment removal results in exposed soil within seven (7) days
<br />of discovery unless precluded by legal, regulatory, or physical constraints. Removal and
<br />stabilization shall be completed within seven (7) days of obtaining access. The
<br />NPDES/SDS permit holder is responsible for contacting the local, regional, state, and
<br />federal authorities and receiving the applicable permits prior to performing this work.
<br />* Inspect construction site vehicle exit locations for evidence of sediment being tracked
<br />off -site onto paved surfaces. Remove tracked sediment from off -site paved surfaces
<br />within 24 hours of discovery.
<br />* Inspect perimeter of construction site. Remove off -site accumulations of sediment in a
<br />manner and at a frequency to minimize off -site impacts.
<br />STORMWATER MANAGAMENT NOTES
<br />LOCATION: 15861 JARVIS STREET NORTHWEST
<br />RAMSEY, MN 55330
<br />9. Pollution Prevention Management Measures
<br />Contractor shall implement the following pollution prevention management measures on
<br />the site:
<br />* Solid Waste: Collect and properly dispose of sediment, asphalt and concrete millings,
<br />floating debris, paper, plastic, fabrics, construction and demolition debris, and other
<br />wastes in accordance with MPCA disposal requirements.
<br />* Hazardous Materials: Properly store, provide required secondary containment, and
<br />dispose of oil products, fuels, point products, and other hazardous
<br />substances to prevent spills, leaks, and other discharges in accordance with
<br />M PCA regulations. Provide restricted access storage areas to prevent unauthorized
<br />access and vandalism.
<br />* Equipment Washing: Restrict external washing of trucks and other construction
<br />equipment to a defined area of site. Contain runoff and properly dispose of waste.
<br />Engine degreasing is prohibited on the property.
<br />* Spill prevention: Park construction equipment and store potentially hazardous
<br />materials in a designated area located as far as practicable from potential
<br />environmentally sensitive areas. Construct impoundment dike and take other measures
<br />required to contain spilled material. Remove and dispose of contaminated soil,
<br />vegetation, and other materials and perform other mitigation measures as required in
<br />accordance with MPCA regulations.
<br />* Sanitary and Septic Waste: Provide and maintain temporary facilities in accordance
<br />with MPCA and Minnesota Department of Health regulations.
<br />10. Final Stabilization
<br />Contractor shall achieve final stabilization of the construction site by achieving the
<br />following:
<br />* Soil disturbing activities have been completed and soils are stabilized by a uniform
<br />perennial vegetative cover with a density of 70 percent over the entire pervious surface
<br />area or other equivalent means to prevent soil failure under erosive conditions.
<br />* Temporary synthetic and structural erosion prevention and sediment control BMP's are
<br />removed.
<br />* Sediment is removed from permanent sedimentation basins to return basins to the
<br />design capacity, removed from stormwater conveyance systems, and is stabilized or
<br />removed from the site.
<br />11. Notice of Termination
<br />Contractor shall notify Owner Immediately upon achieving Final Stabilization. Owner
<br />must submit the Notice of Termination within 30 days after Final Stabilization or within
<br />30 days of another owner assuming control according to PartII.B.5. over all areas of the
<br />site that have not undergone Final Stabilization.
<br />FIELD WORK DATE: 09/26/2023 DRAWN BY: IS PROJECT NO.: 23-146
<br />FIELD BOOK NO.: EDS-15 CHECKED BY: VS SHEET NO. C10
<br />
|