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ANNUAL IMPOUNDMENT INSPECTION FORM <br />Mine: New Horizon 2 Mine <br />Pond Name: Pond 009 <br />NPDES Permit & Outfall #s: CO- 0000213 <br />Date Inspected: 19- March -2015 <br />Location Description: 2 miles NW 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: 25- October -2014 <br />Legal Location: Sec 36 of T47N R16W <br />Inspector's Name: Frank Ferris <br />Pond Capacity Data <br />As Built Pond Embankment elev.: 5649.25 As Built Pond Bottom elev.: 5639.7 <br />As Built Pond Emergency Spillway elev.: NA As Built Pond Primary Spillway elev.: 5647.2 <br />As Built Pond Capacity (pond bottom to primary spillway) per As Built 4.7 ac -ft <br />Existing Pond Capacity (pond bottom to primary spillway): As Built Volume - SV = 4.67 ac -ft <br />Sediment Volume (SV) at Inspection: length 90 ft X width 50 ft X depth 0.3 ft = .03 ac -ft <br />Surface Water elev. Dry - As Built Pond Bottom elev. 5639.7 = Water Depth Dry <br />Water Volume (WV) in Pond Dry (using as built capacity table & surface water elevation, and t <br />subtracting sediment volume under water level) y��0 <br />Pond Capacity Available below primary spillway 4.67 ac -ft [As Built Pond Capacity — WV — 99 <br />Inflow volume from 10 -yr 24 -hr storm runoff event 1.65 ac -ft <br />'6342 <br />Circle N <br />.� <br />Circle or Write appropriate Response �c�•• ° °.• ° °° �;� <br />UONAk- <br />1. , Seepage (specify location, color, and approx. volume) Yes IC's N <br />2. Cracks or scarps on crest or slopes Yes N/A <br />3. Sloughing or bulging on slopes Yes I N/A <br />4. Major erosion problems Yes 1�0 N/A <br />5. Surface movements in valley bottom or on hillside Yes N/A <br />6. Water impounded against toe Yes N/A <br />7. Clogging <br />a) Spillway channels and pipes Yes N/A <br />b) Decant system Yes s N/A <br />c) Diversion Ditches Yes io N/A <br />8. Cracking or crushing of pipes <br />a) Spillway pipes Yes N/A <br />b) Decant system Yes ( N/A <br />9. Trash racks clear and in place Yo No NN/ /A- <br />10. Monitoring instrumentation Yes No <br />Comments: Embankment mowed. tf <br />Minor sediment accumulation (90 ft L, 50 ft W, & 0.3 ft deep) = 0.03 ac -ft. <br />M: \ENG \NH2 \Env \Pond Exams & Insp \2015 -03 Pond Examination.doc <br />