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ANACONDA Minerals Comp <br />555 Seventeenth Street <br />Denver, Colorado 80202 <br />Telephone 303 293 4000 <br />• i III IIIIIIIIIIIIIIII <br />999 _ J <br />March 15, 1984 <br />Mr. Robert Liddle <br />Reclamation Specialist <br />Mined Land Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />RE~EIVED <br />b ~ n <br />IJ!.~I\ 19 l~0-1 <br />MINED LAt7D f?EC! AM.ATION DIVISION <br />Colo. Dept.~of ^latursl Resources <br />Dear Bob: <br />Please find enclosed two (2) copies of the Annual Hydrology Report <br />for West Elk Coal Company's Mt. Gunnison No. 1 Underground Mine. <br />The report provides a summary and interpretation of hydrologic <br />monitoring data at the Mt. Gunnison Mine through U`iGS Water Year <br />1983 (October 1, 1982 - September 30, 1983) a~ well as an <br />assessment of the hydrologic impacts of our minjng activities <br />during this period. <br />I <br />As you and I discussed last week, we recently le rned that the <br />USGS discontinued their water quality monitoring of the North Fork <br />of the Gunnison River near Somerset in September, 1982. They are, <br />however, maintaining their gauging station and thus~are continuing <br />to collect water quantity data in the North Fork. Stipulation 9 <br />(OSM's Stipulation 4) to the Permit to Mine issued by the CMLRB to <br />Atlantic Richfield for its Mt. Gunnison Mine requir s that should <br />the USGS discontinue monitoring at their Somer et monitoring <br />station, the operator should submit its own qualit and quantity <br />monitoring program for the North Fork of the unnison. As <br />discussed in the Annual Hydrology Report, West Elk Coal Company <br />collects water quality samples on a quarterly basi in the North <br />Fork above Sylvester Gulch and in the North Fork ~elow the mine <br />site. The sampling locations are shown in Exhibit I to this <br />Annual Report. This, we trust, satisfies the condfition noted in <br />Stipulation 9. <br />If you have any questions or need additional information, please <br />do not hesitate to contact me at 293-7949. i <br />Sinc ely, <br />~.~ ~~~~i <br />Paige 6. Seville <br />Senior Permit Coordinator <br />PBB:ac <br />Enclosure(s) <br />cc: R. Bowman <br />A. O'Hayre <br />ANACO NOA M~ner~l. ComDAnY '. a Dlrl,ion al A11.nncRlc~11~IECOmpAny 4MC0.6000-A IB-B l) <br />