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i <br />~~ Cyprus Yampa l/epay Coal Corporation <br />An AIIIIIeN o! C,ym NlntrAU Gpnpny <br />August 10, 1989 <br />Mr. David Berry <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203-2273 <br />Dear Mr. Berry: <br />Re: Pond H Embankment - Benchmark Survey <br />7D587 Roust County RoeO eP <br />Oak Creek ('A BD167 <br />Phone 17071 d7&7E00 <br />(~ECE~~EC~ <br />~u c i ~ uses <br />MINED LAND <br />RECLAMATION DI'JISIOIv <br />As discussed during your July mine inspection, Cyprus Yampa Valley Coal <br />Corporation is submitting the following preliminary information regarding <br />the Pond H Embankment Survey, Mines 1, 2, and Eckman Park, Permit C-81-071. <br />The original survey was taken on August 16, 1988. The first survey was <br />completed on June 13, 1989. The surveyed elevations are shown below. The <br />shots are from north to south across the embankment. Pins #1, #3, and #5 <br />are located on the northeast side and above the pond embankment. Pins #2, <br />#4, and #6 are located on the northwest side and back from the pond's <br />embankment. <br />Shot in) Elevation (9/16/88) Elevation (6/13/89) <br />Difference <br />in Elevation <br />#1 451.567 450.540 0.03 ft. <br />#2 451.002 450.968 0.03 ft. <br />#3 449.205 449.241 0.03 ft. <br />#4 449.261 449.220 0.04 ft. <br />#5 447.645 447.525 0.11 ft. <br />#6 447.485 447.385 D.10 ft. <br />The survey shows minute movement on two pins which will be verified in <br />August and September, 1989. Visual inspection shows no perceptible <br />movement. The survey will be completed in September 1989. <br />If you have any additional questions, please give me a call. <br />Sincerely, <br />Richard Hughes <br />Environmental Specialist <br />RMH/mlp <br />cc: R. Golden <br />R. Mills <br />c~RUs <br />