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ii i iiiiii iii Ilii iii <br />~~ <br />-~ <br />BASIN <br />RESOD RCES, tne. <br />a subsidiary of ENTECH, Inc. <br />May 12, 1997 <br />ud ~~_ <br />Mr. Ken[ Gorham <br />State of Colorado <br />Division of Minerals & Geology <br />1313 Sherman Street, Room 215 <br />Denver. Colorado 80203 <br />Re: Subsidence Monitoring <br />Dear Mr. Gorham: <br />14300 Highway 12 <br />Weston, Colorado 81091 <br />(719) 868-2761 <br />Purchasing (719) 868-2768 <br />Fax (719)868-2275 <br />1~ ~ ~ _~ <br />Z ~ 2 ~~, . <br />Enclosed is the data received from High Plains Surveying, tabulating [he survey information for all active <br />subsidence monitoring stations. Survey data for the Third and Fourth Quarters of 1996 and the First <br />Quarter of 1997 is included in their report. <br />I am in the process of analyzing this data to provide the maximum displacement, and [he displacement <br />observed in the last twelve months, both horizontal and vertical, for each of these stations. I anticipate that <br />this information, together with an updated subsidence survey map (map 17), will be submitted to the <br />Division in the near furore as a technical revision to the Golden Eagle permit. 7 % ~,1 c ' , /~ <br />Wl •j'~-y <br />Please contact me if there are any questions, or if you need additional information a[ [his tune. <br />SincerelyJ) ~C/.~j <br />,7lor-tom/ ~I Q <br />Ronald G. Thompson <br />Property Manager <br />RECEIVED <br />MAY 141991 <br />Division of Minerals 8 Geology <br />Enclosures <br />