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Table 13: Implementation Schedule for Erosion and Sediment Control Measures Erosion and Sediment Initial Placement Duration to Remain In-Place Control Measure Stabilized Construction Access Upon mobilizing to site Until construction is complete Dust Control As needed As needed Upon delivery of materials to the Until materials have been placed Temporary Soil Stockpile site or excavation of on-site or removed from the site materials for reuse Prior to upgradient soil Until upgradient area has achieved Silt Fencing disturbance permanent stabilization Apply to any disturbed soil that will Apply additional seed as needed Temporary Seeding remain exposed for more than 14 for temporary stabilization days Existing structures: prior to Manufactured Insert Inlet upgradient soil disturbance Until upgradient area has achieved Protection New structures: upon installation permanent stabilization of structure/grate Upon completion of slope grading Prior to final grading, or kept in Erosion Control Blanket operations place permanently Existing swales: upon completion of swale reshaping Stone Check Dams Permanent New swales: upon completion of swale excavation As needed during grading Until final grading of tributary area Temporary Sediment Trap operations is complete Until permanent drainage methods As needed to divert flow around are established (i.e. closed storm Temporary Diversion Swales work area sewer, open conveyance swales, etc.) Until excavation/backfilling is Dewatering Operations As needed during excavation complete Prior to upgradient soil Until upgradient area has achieved Fiber Roll disturbance permanent stabilization Permanent, apply additional seed Establishment of Permanent As soon as possible after as needed to achieve 80% Vegetation completion of final grading minimum uniform coverage During installation of tributary Rock Outlet Protection Permanent culverts/pipes 5.4 Other Pollutant Controls Part I.C.1 of GP-0-25-001 prohibits discharges from construction material wastewater, pollutants used in vehicle and equipment operation and maintenance, vehicle and equipment washing and toxic or hazardous substances. Stormwater Pollution Prevention Plan Page 18 2241067 Page 108 of 1493