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SENT 9Y;Administration Office .11-43-6> 1~06PM ;CYPRUS YAMPA VALLEY yC0 MINED LAND REC'L :# 2 <br />., <br />w <br />w ~ <br />Y <br /> <br />ysz ~~~5 <br />~ Yampa Yall~y <br />January 27, 1992 <br />Mr. Wi111am Holgate <br />District Manager <br />Mine Safety G Health Administraticn <br />Coal Mine Health and Safety <br />P. O. Box 25367 <br />Denver, CO 80256 <br />Dear Mr. Holgate: <br />Q ~~ <br />~~ <br />The following information constitutes the 1991 Annual report for <br />the impoundments listed below as outlined by 77.216-4, 30 CFR. <br />Pond A. I.D. No. 1211-CO-09-00302-01 <br />A) Geometry of the impounding structure <br />1) No charges during the reporting period <br />B) Average and Maximum depths and elevations of impounded water <br />1) Average depth: 10.1 ft. maximum depth: 29.0 it. <br />2) Average elevation: 6932.5 maximum elevation: 6935.4 <br />C) Volume impounded water <br />1) Approximately 97.2 acre-feet - increased with the removal <br />of 64.512 yards of sediment. <br />D) Stability of the impounding structure <br />1) No changes during the reporting period <br />2) No changes occurring dur <br />cc : C-Y <br />Dw <br />PSDO <br />GSiO <br />Imp, Ella <br />~CoM~ronile <br />Cyprus Yampa Valley Coal Corporation <br />29587 Routt County Raed #27 <br />Oak Creek, Colorado 80487 <br />303.879.9800 <br />4~ <br />~A ~ 11727 <br />/y6 e, <br />a Oa+~K <br />>HA-DISTRICT 9 <br />FEH 12 I~ <br />{ ~~-~Z <br />1. <br />`~ <br />.. <br /> <br />