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Page 6 of 7 <br />reaches 1/2 the storage volume. Drainage and removal must be completed <br />within 72 hours of discovery, or as soon as field conditions allow access. <br />c. Surface waters, including drainage ditches and conveyance systems, must <br />be inspected for evidence of sediment being deposited by erosion. The <br />Permittee shall remove all deltas and sediment deposited in surface waters, <br />including drainage ways, catch basins, and other drainage systems, and <br />restabilize the areas where sediment removal results in exposed soil. The <br />removal and stabilization shall take place within 7 days of discovery <br />unless precluded by legal, regulatory, or physical access constraints. The <br />Permittee shall use all reasonable efforts to obtain access. If precluded, <br />removal and stabilization shall take place within 7 calendar days of <br />obtaining access. The Permittee is responsible for contacting all local, <br />regional, state and federal authorities and receiving any applicable <br />permits, prior to conducting any work. <br />d. Construction site vehicle exit locations shall be inspected for evidence of <br />off-site sediment tracking onto paved surfaces. Tracked sediment shall be <br />removed from all off-site paved surfaces, within 24 hours of discovery, or <br />if applicable, within a shorter time. <br />e. The Permittee is responsible for the operation and maintenance of <br />temporary and permanent water quality management BMPs, as well as all <br />erosion prevention and sediment control BMPs, for the duration of the <br />construction work at the site. The Permittee is responsible until another <br />Permittee has assumed control over all areas of the site that have not been <br />finally stabilized or the site has undergone final stabilization, and a NOT <br />has been submitted to the MPCA. <br />f. If sediment escapes the construction site, off-site accumulations of <br />sediment shall be removed in a manner and at a frequency sufficient to <br />minimize off-site impacts (e.g., fugitive sediment in streets could be <br />washed into storm sewers by the next rain and/or pose a safety hazard to <br />users of public streets). <br />F. All infiltration areas shall be inspected to ensure that no sediment from ongoing <br />construction activities is reaching the infiltration area and these areas are <br />protected from compaction due to construction equipment driving across the <br />infiltration area. <br /> <br />6. Pollution Management Measures/Construction Site Waste Control <br />A. The Permittee must implement the following pollution prevention management <br />measures on the site. <br />a. Solid Waste- Collected sediment, asphalt and concrete millings, floating <br />debris, paper, plastic, fabric, construction and demolition debris and other <br />wastes must be disposed of properly and must comply with MPCA <br />disposal requirements. <br />b. Hazardous Materials such as oil, gasoline, paint and any hazardous <br />substances must be properly stored, including secondary containment, to <br />prevent spills, leaks or other discharge. Restricted access to storage areas