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ANNUAL IMPOUNDMENT INSPECTION FORM <br />Mine: New Horizon 2 Mine <br />Pond Name: Pond 011 <br />NPDES Permit & Outfall #s: CO- 0000213 <br />Date Inspected: 17- March -2014 <br />Location Description: 2 miles W of Nucla <br />Owner's Rep.: Rick Wolney, Mine Manager <br />Pond Type: Partly Incised <br />CDRM & S #: C- 1981 -008 <br />Date last Examination: 16- December -2014 <br />Legal Location: Sec 1 of T46N R16W <br />Inspector's Name: Frank Ferris <br />Pond Capacity Data <br />Surveyed Pond Embankment elev.: 5619.7 As Built Pond Bottom elev.: 5606.2 <br />Surveyed Pond Emergency Spillway elev.: 5616.3 Surveyed Pond Primary Spillway elev.: 5615.5 <br />As Built Pond Capacity (pond bottom to primary spillway) per As Built 10.8 ac -ft <br />Existing Pond Capacity (pond bottom to primary spillway): As Built Volume - SV = 10.8 ac -ft <br />Sediment Volume (SV) at Inspection: length ft X width ft X depth ft = NA ac -ft <br />Surface Water elev. 5611.0 - As Built Pond Bottom elev. 5606.2 = Water Depth 5.2 feet <br />Water Volume (WV) in Pond 3.1 ac -ft (using as built capacity table & surface water elevatio <br />subtracting sediment volume under water level) ���p.DO L/CF�s <br />Pond Capacity Available below primary spillway 7.7 ac -ft As Built Pond Capacity WV �`� K. �F• °•FO <br />p Y P rY P Y ( p Y— ; �z- 9'9 <br />Inflow volume from 10 -yr 24 -hr storm runoff event 5.03 ac -ft :c�� <br />Circle or Write appropriate Response <br />1. Seepage (specify location, color, and approx. volume) <br />2. Cracks or scarps on crest or slopes <br />3. Sloughing or bulging on slopes <br />4. Major erosion problems <br />5. Surface movements in valley bottom or on hillside <br />6 <br />7 <br />8 <br />I• <br />10. <br />Water impounded against toe <br />Clogging <br />a) Spillway channels and pipes <br />b) Decant system <br />C) Diversion Ditches <br />Cracking or crushing of pipes <br />a) Spillway pipes <br />b) Decant system <br />Trash racks clear and in place <br />Monitoring instrumentation (,�� I ( v <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />Yes <br />'tom <br />Yes <br />1.8:'4Z K <br />u <br />0 N/A <br />rb N/A <br />ly N/A <br />re N/A <br />V N/A <br />I o N/A <br />N/A <br />!ap N/A <br />P& N/A <br />l& N/A <br />No N/A <br />No N/A <br />Comments: No sediment accumulation was observed in the pond. Electronic outfall monitoring equipment will <br />be installed. Embankment mowed. <br />M: \ENG \NH2 \Env \Pond Exams & Insp \2015_03 Pond Examination.doc <br />