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1 <br />~II II~~I~~I~~I~~ II~ <br />999 <br />December 18, 1995 <br />Mr. Allen C. Sorenson <br />Deportment of Natural Resources <br />1313 Sherman Street Rm. 215 <br />Denver, CO 80203 <br />'a r*, a <br />t <br />or=r.FIVED <br />DEC 19 1995 <br />Division of Minerals 8 Geology <br />Re: Haze! A Water Storage Capacity and Evaporation forModifred Tailings Pond <br />Permit No. M-94-117, COMlnc: <br />Dear Al: <br />The results of the water storage capacity of the Hazel A edit end the estimated capacity and <br />eveporatiaur potential for the modified tailings pond at Gold Hill ere attached. <br />The capacity tables ere bead on water height floor water marks on the Iloor end ribs in tl-e main <br />edit The water capacity cFurt calcvletians were based on recalculatiart of volumes in a <br />spreadsheet using standard double end area calculations between stations end varying the water <br />height behind the bulkhead <br />The evaporation in the tailings pond reflects the decreased sta~rmweter runoff area going to the <br />tailings pond. The additional two feet of embankment height allows en additional eighteen <br />inches of water volume capacity end a storage volume of epproromately .92 acre feet below the <br />riser outlets. A survey will be completed to determine actual volume available in the pond end <br />the results will be sent to you. <br />Sincerely, <br />Richard Fox P.E. <br />Consultant to COM, Inc <br />cc: Gwen Fraser <br />Tim Hartley <br />Richord Fanyo <br />