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10 SURFACE WATER CONTROL AND CONTAINMENT FACILITIES <br />The permit area is located at the top of a topographic divide, out and away from any major <br />drainages and on relatively gentle slopes. All designated chemicals are stored within the mill <br />building, which has sufficient designed secondary containment capacity to retain any volumes <br />of materials the might be spilled. All chemicals are purchased in and transported using DOT <br />approved containers, with those containers being placed in their proper storage areas within <br />the mill. The operator has standard procedures for cleanup of spills that might occur during <br />transport and handling. <br />The material contained in the Lucky Strike vein, and the country rock adjacent to it, is <br />dominantly made up of silica minerals which have been found to contain only very low <br />concentrations of sulfide minerals. Testing has found the materials to be non -acid generating. <br />Thus if a storm event might occur, no acid generating or acid forming materials would be <br />present to impact the environment. The map (Precipitation Surface Flow Directions Map) is <br />included showing the location of stored chemicals, fuels, and ore materials. <br />All surface water generated from precipitation within the disturbed areas is captured by the site <br />perimeter diking. Small berms contain localized containment areas, such as the ore stockpile <br />area, and an additional large berm is located to the west of the tailings pond that has capacity <br />to retain all storm -water runoff generated by the site. Runoff from topographically up- gradient <br />areas outside of the permit boundary is diverted by up- gradient berms as run -on protection. <br />Due to the simplicity of the surface flows at the site and the designed containment of all run -off <br />generated within the permitted area, the Colorado Department of Public Health and <br />Environment (CDPHE) has determined that no storm -water runoff permit is required for this <br />operation. <br />11 SURFACE WATER QUALITY STANDARDS <br />The site is located along a high divide and there are no perennial streams. The closest stream <br />that can be considered perennial, would be Stubbs Gulch in it lower reaches, a distance of at <br />least 7 miles from the permit area. Thus, since no surface waters exist, there can be no release <br />to them. An exception to the absence of surface waters is the discharge point from the Lucky <br />Strike Spring, which will be sampled as part of the water quality monitoring plan. The State of <br />Colorado defined detection limits for that source are shown in Section 10 above. <br />13 <br />