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~~ ~ ~ III IIIIIIIIIIIII III COL®G~AG]® VWES'TMOIRELAI@I® INC. sss P. O. Oox E, Paonia, Colorado B142B ( 1 303-527-4'135 August 21, 1978 A.U G 2 ~ 1918 Mr. Paul Storrs Area Mining Supervisor U.S. Geological Survey Box 25046, MS 602 Denver Federal Center Denver. CO 80225 hJIINED LAND RECLAMATIOPJ AID ~ r~l n~ ~n~ Co!~.'~e9t. o! t~. .,c~~r„ Mr, Dean Massey Reclamation Specialist Mined Land Reclamation Board 723 Centennial Building 1313 Sherman Street Denver, CO 80203 Dear Sirs: The purpose of this let[er is to update you on our progress in implementing tl>e storm runoff and sediment control facilities at our mine site. While the hydrologic control system as set forth in our respective mining plans contained much detail on flows and channel capacities, etc., the designs were basically conceptual in nature. As we began to do the :.•urveying and field work necessary t,o begin construction, we realized that the place- ment of the diversion ditch as depicted on the contour maps submitted as a part of our plan will have ttie potential of causing additional visual impact. As you know, CWI has been very sensitive to ttie effects of our mining operation on the local community and as a result, we decided to explore the possi'uility of moving the drainage ditci> to a slightly lower elevation thus lessening the visual icapact of the drainage ditch. We feel that we have accomplished this by placing the drainage ditch at a level just above the existing uppermost bench, i'his location, while offering the saiue safety features as the location which was slightly higher, will serve to substantially reduce the visual impact by utilizing an area which has already been disturhed. The upper basin diversion channel as originally planned, was to be located at approximately the 7000 foot contour line. imnnn cmu ~ i•.f npry.