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StormwaterManafement Ptmz <br />B. Materials Handling and Spill Prevention <br />All materials will be hauled off site and the remaining stockpiles will have <br />diversion structures/ditches to channel stormwater to prevent contact with <br />stockpiles of materials. <br />To prevent spills or leaks of fuels or hydraulic oils, all repairs in the gravel <br />pit will require to be done in containment areas surrounded by berms. <br />Most repairs on equipment are performed at local county maintenance <br />shops. <br />C. Erosion and Sediment Controls <br />Erosion & sediment control minimizes or eliminates any impact to the <br />mine operations from stormwater runoff. Stormwater control will be <br />implemented primary through channels or ditches to divert flow around <br />mine facilities <br />Diversion ditches will protect mine facilities from surface runoff and <br />storm events. Existing natural drainages will be utilized to the extent <br />possible with diversion ditches established only to redveM runoff <br />Diversion ditches will unlined, but will be constructed to accommodate <br />peak flows resulting from 24-hrs storm events. <br />