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7~ <br />COLORADO YAMPA <br />COAL COMPANY <br />A Cyprus Amax Company <br />III IIIIIIIIIIIII III <br />Colorado Yamp,. ~.~ar company <br />29515 Routt County Road #27 <br />Oak Creek, Colorado 80467 <br />(970) 879-3800 <br />December 4, 1997 <br />RECEIVED <br />'°net Bi"ns DEC 0 g 1997 <br />Environmental Protection Specialist <br />Culorado Division of Minerals and Geology <br />1313 Sherman Street, Room 215 Division of MmerBls 6 Geology <br />Denver, Colorado 80203 <br />RE: Certification of Unnamed Livestock Impoundment, Mine 2, Permit C-81-071 <br />Dear Ms. Binns: <br />Colorado Yampa Coal Company (CYCC) has reviewed the unnamed livestock water tank <br />located in Mine 2. This water tank was shown as proposed livestock water tank 6-b on Map 9A <br />in the CYCC -Permit C-81-071 Volume 15A Permit Renewal and will be referred to as 6-b . <br />CYCC has developed the following response and certification to the Corrective Action Order <br />issued November 25, 1997 to comply with the Reaula[ions of the Colorado Mined Land <br />Reclamation Board for Coal Minink: <br />4.II5.9 /mpoundn:entc. <br />(lI l'crnuntent /mpoundntents. <br />Peruunrent inrpuundmerus for fire beneficial use of'stored water uuiv only be authorized in <br />accurd~urce with nppliccrble .State law and upon fire basis of dre following demonstration: <br />(rt) The quality of the impounded wider steal( be suitable on n permanent busi.e Jnr its <br />intended used and discharge of water front the irnpoandmen[ shall meet applicable <br />,Slide artd Federal water quality stnndurds. <br />Nu water quality data has been collected from 6-b. Water collected in this impoundment is due <br />to surface runoff fiom rain and snowmelt. The intended use of [his impoundment is for livestock <br />watering which requires TDS to be below 5,000 mg/I. Monitoring of spoils springs and <br />sedimentation impoundments at Mine 2 indicates typical TDS values a[ 2,400 mg/I or less. <br />Cattle and wildlife tracks around this impoundment indicate [ha[ i[ is being used for watering. <br />(b) The /eve! of water .ehull be ,ru~ciendy stable and [he cunfrguration of the <br />hnpuunchnent shall be adequate to support the intended use. <br />