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;~ MOUNTAIN COAL COMPANY <br />WEST ELK MINE <br />Quarterly Pond Inspection Report <br />Somerset, Gunnison County, Colorado <br />Date: September 30, 1996 Quarter: <br />Page 1 of 2 <br />Location: West Elk Mine Inspector: C. Johnston <br />Pond Identification <br />Type of Pond <br />Sediment Level <npPr°x~ <br />Water Level (Approx.) <br />Outflow <br />Features <br />MB-1 South MB-1 North MB-2R MB-3 MB-4 <br />Sediment Sediment Sediment Sediment Sediment <br />? ? IS% 5% 5% <br />Full Ful] 3 ft. < top of <br />P.S. 2 ft. < top of <br />P.S. 10% Full <br />See DMR See DMR See DMR See DMR See DMR <br />Problem <br />Comments <br />Erosional: Yes No <br />Rills & Gullies on Embanlanent / <br />Inadequate Vegetation / <br />Outlet Channel Erosion / <br />Burrows / <br />Other <br /> <br />Structural: Yes No Some damp spots on MB-1 <br />Differential Settling / embankment. <br />Cracks or slides / Water puddled behind surface shop at toe <br />Seepage / of embankment. <br />Other / <br /> <br />Appurtenant Structures: Yes No Need to remove twigs, etc. from around principal <br />Defective Spillways / spillway at MB-3. <br />De-watering Device Clogged / <br />~~~\\~ <br /> ` <br />1 <br />Faulty Gates, Battles, Pumps / ~ <br />t,p0 RE~is1) <br />Other = <br />; <br />'~~ j„ri <br />t:• ~ <br />,~ <br />~ <br /> ~ ~ . <br />. <br />. <br />~ <br />U ~ <br />~' 1 <br />Additional Comments: ~ i7 ~,~,15 ~; <br />Vegetation was removed in MB-1 spillway. MB-4 was cleaned during 3rd quarter. ~ ~ : ~- '- ' ~ <br />S <br />~ <br />' <br />` <br />' <br />9 <br />" <br />U <br />-~ <br />~/-• <br />, <br />~ <br />P.S. =Principle Spillway % <br />c <br />DMR = CDPS Discharge Monitoring Report f, `, ••' ~ ; '.~° <br />e <br />~.:.:~ 6''`~ <br />? =Level not visible. Approximately QO% `i ~,~" <br />°``.`V`~ <br />Action Required or Needed: <br />Trash needs to be picked up along side slopes of MB-2R near spillways and from around principal spillway in MB-3. <br />Regrade behind Surface Shop. <br />