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<br />a ~ <br />Bruce Humphries - 2 - <br /> <br /> - '~- <br />~1. Pond volume and pond dimensions including side slopes. <br />2. Storage capacity for runoff water from a 5-year, 6-hour <br /> event, from the dist urbed area (estimated to be 1.13 ai <br />3., Storage capacity for sediment from the disturbed area 1 <br /> period assuming use of the Universal Soil Loss Equation <br /> clean-out at the 60% sediment level. <br />4. Storage capacity for process water for a 4-hour period <br /> to be 5.5 acre-feet, assuming 7500 gallons per minute), <br />Er; Storage capacity for irrigation water for reclamation <br /> (estimated to be 30- acre-ft/year). <br />7r Storage capacity for dust suppression water. <br />7. Storage capacity for spring snowmelt/greund-~tPr-reeh~ <br />8. Storage capacity for any remaining operating volumes. <br />9. Plan view and repres entative cross sections. <br />3. A field survey along the length of containment dike to mark <br />of the 25-year flood elevation. The Division requests that <br />elevation be 5 feet above the stream bank adjacent to the mi <br />operation. A revised facilities map should be provided whit <br />containment dike and the elevation of the 25-year floodplain <br />procedures are necessary to provide evidence that the contai <br />capable of rejecting the floodwaters of a 25-year storm. <br />TAS/y j b /"~ <br />s 4 / <br />a217F 2 <br />~- <br />~...- . <br />Ifr <br />( b " ° ~ o <br />--},~ 5 plc G Of7 ~ ~./!~~ <br />une 21, 1990 <br />storm <br />:re feet). <br />`or a 3 year <br />i and <br />(estimated <br />purposes <br />he contour <br />his <br />ing <br />shows the <br />These <br />ment dike is <br />i- <br />