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Design \Drawing Files \06013 C1 dwg NORTH 7L:�� 0 20 40 80 SYMBOL LEGEND •••••; ••••• REMOVE AND DISPOSE OF EXISTING BITUMINOUS PAVEMENT AND REPLACE WITH 3" OF TOPSOIL INSTALL EROSION CONTROL FABRIC PER SPECIFICATIONS_ • • INSTALL SEED AND MULCH PER SPECIFICATIONS_ L ANDSCAPE NOTES 1. PLACE EROSION CONTROL FABRIC ALONG THE PAVEMENT EDGE. 2. TILL AND MIX TOGETHER 3" OF TOPSOIL AND 2" OF BASE AGGREGATE FOR A TOTAL DEPTH OF 5" TO PROVIDE A GRAVEL AND TOPSOIL MIX. 3. PREFORM THE GRADING NECESSARY TO PROVIDE DRAINAGE ON THE SOUTH EDGE ALONG THE CONSTRUCTION LIMITS. 4. EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL VEGETATION IS ESTABLISHED. EROSION CONTROL NOTES 1. Owner and Contractor shall obtain MPCA NPDES permit. Contractor shall be responsible for all fees pertaining to this permit. The SWPPP shall be kept onsite at all times. 2_ Install temporary erosion control measures (inlet protection, silt fence, and rock construction entrances) prior to beginning any excavation or demolition work at the site_ 3. Erosion control measures shown on the erosion control plan are the absolute minimum. The contractor shall install temporary earth dikes, sediment traps or basins, additional siltation fencing, and /or disk the soil parallel to the contours as deemed necessary to further control erosion. All changes shall be recorded in the SWPPP. 4_ Contractor must call the City Engineering Department for an erosion control inspection prior to earth moving activities_ 5_ All construction site entrances shall be surfaced with crushed rock across the entire width of the entrance and from the entrance to a point 50' into the construction zone_ 6. The toe of the silt fence shall be trenched in a minimum of 6 ". The trench backfill shall be compacted with a vibratory plate compactor. 7_ All grading operations shall be conducted in a manner to minimize the potential for site erosion_ Sediment control practices must be established on all down gradient perimeters before any up gradient land disturbing activities begin_ 8. All exposed soil areas must be stabilized as soon as possible to limit soil erosion but in no case later than 7 days after the construction activity in that portion of the site has temporarily or permanently ceased. Temporary stockpiles without significant silt, clay or organic components (eg., clean aggregate stockpiles, demolition concrete stockpiles, sand stockpiles) and the constructed base components of roads, parking lots and similar surfaces are exempt from this requirement. 9. All storm sewer catch basins not needed for site drainage during construction shall be covered to prevent runoff from entering the storm sewer system. Catch basins necessary for site drainage during construction shall be provided with inlet protection. 10_ In areas where concentrated flows occur (such as swales and areas in front of storm catch basins and intakes) the erosion control facilities shall be backed by stablization structure to protect those facilities from the concentrated flows. 11. Inspect the construction site once every seven days during active construction and within 24 hours after a rainfall event greater than 0.5 inches in 24 hours_ All inspections shall be recorded in the SWPPP. 12. All silt fences must be repaired, replaced, or supplemented when they become nonfunctional or the sediment reaches 1/3 of the height of the fence_ These repairs must be made within 24 hours of discovery, or as soon as field conditions allow access_ All repairs shall be recorded in the SWPPP_ 13. If sediment escapes the construction site, oft -site accumulations of sediment must be removed in a manner and at a frequency sufficient to minimize off-site impacts. 14_ All soils tracked onto pavement shall be removed daily. 15. Temporary soil stockpiles must have sift fence or other effective sediment controls, and cannot be placed in surface waters, including stormwater conveyances such as curb and gutter systems, or conduits and ditches unless there is a bypass in place for the stormwater. 16. Collected sediment, asphalt and concrete millings, floating debris, paper, plastic, fabric, construction and demolition debris and other wastes must be disposed of properly and must comply VIM MPCA disposal requirements. 17. 011, gasoline, paint and any hazardous substances must be properly stored, including secondary containment, to prevent spills, leaks or other discharge. Restricted access to storage areas must be provided to prevent vandalism_ Storage and disposal of hazardous waste must be in compliance with MPCA regulations_ 18_ External washing of trucks and other construction vehicles must be limited to a defined area of the site. Runoff must be contained and waste properly disposed of. No engine degreasing is allowed onsite. 19. All liquid and solid wastes generated by concrete washout operations must be contained in a -leak -proof containment facility or impermeable liner. A compacted clay liner that does not allow washout liquids to enter ground water is considered an impermeable liner. The liquid and solid wastes must not contact the ground, and there must not be runoff from the concrete washout operations or areas. Liquid and solid wastes must be disposed of properly and in compliance with .,MPCA regulations. A sign must be installed adjacent to each washout facility to inform concrete equipment operators to utilize the proper facilities. 20. Upon completion of the project and stablization of all graded areas, all temporary erosion control facilities (silt fences, hay bales, etc.) shall be removed from the site. 21_ Contractor must call the City Engineering Department for a final grading inspection, before project completion. 22. Contractor shall submit Notice of Termination for MPCA -NPDES permit within 30 days after Final Stabilization.