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<br />Section 5.2. Materials Handling and Spill Prevention <br /> <br />Significant materials and areas at this site include stockpiles of topsoil, overburden and <br />clay and areas that are undergoing preparation for mining, active mining, or reclamation. <br />The only pollutant that these materials and areas might potentially contribute to <br />stormwater runoff is suspended sediment (TSS). ' <br />Control measures designed to prevent erosion and sediment transport.are detailed in <br />Section 5.3 of this document. <br />Section 5.3. Erosion and sediment controls <br />Stockpiles of clay and topsoil, active pit azeas, materials handling areas, and other <br />disturbed azeas all have the potential to contribute sediment to stormwater discharges. <br />Sediment control of these areas takes two forms. <br />First, inactive areas and areas in the process of reclamation are graded and revegated so <br />as to minimize the potential for erosion and sediment transport. The revegated land <br />runoff is primazily controlled with swales, temporary berms, and undistwbed land <br />vegetative filters. <br />Second, runofforiginating in and passing through disturbed areas is contained by means <br />of grading, berm construction, in-pit ponds, and existing ranch ponds, so that it is <br />collected in a series of sediment ponds on the property (see maps 2-2, 3-1, 3-2, and 3-3). <br />These ponds are used for livestock watering. <br />Section 5 4 Testing for non-stormwater <br />Date of testing; July 21, 1993 <br />At the time of observation the weather at the site was clear and dry, and no precipitation <br />had occurred during the previous 2 days. The settling ponds shown on the maps in this <br />plan (see maps 2-2, 3-1, 3-2, and 3-3) were the only surface water present in the mining <br />area, and no dischazge of non-stormwater was observed at any point. <br />7/17/98 Apache SWMP <br />