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<br />NPDES I.D . NO.: CO-0000221 D.P. 010 ~ <br />FACILITY CONFIGURATION: Cross-Valley Pond '~ <br />DATE LAST INSPECTION: <br />SITE NAME : Pond #010 LOCATION: NNP/. NE`/,. Sec. 8, T5N, R87W <br />MINE NAME : Yoast Mine(Seneca Coal Co) LOCATION: 8.5 mi. SE of Hayden, CO <br />MINE I.D. NO.: C MLRD Permit No. C-94-082 OWNER'S REP.: Greacr Kitchen. Gen Mar <br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 3 -6 ~0 6 <br />Circle or write in appropriate response <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7. <br />8. <br />9. <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />Foundation preparation (removal of vegetation, stumps, topsoil <br />Lift thickness: <br />Compaction according to approved plan: <br />Burning (specify extent and location): <br />Angle of slope: 3.75:1 upstream, 3.75:1 downstream <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment slopes: <br />At natural hillside: <br />Over widespread areas: <br />From downstream foundation area: <br />"Boils" beneath stream or ponded water: <br />Cracks or scarps on crest: <br />Cracks or scarps on slope: <br />Sloughing or bulging on slope: <br />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Erosion of toe: <br />*Water impounded against toe: <br />Existing embankment freeboard: (normal = 10.0') <br />Zncrease Decrease in water level: ko c~MKQ <br />0 <br />Cracks, bulging, or erosion on upstream face: <br />Visible sumps or sinkholes in slurry surface: <br />*Clogging <br />Spillway channels and pipes: <br />Decant system: <br />Diversion ditches: <br />*Cracking or crushing of pipes <br />Yes Pfo N/A <br />Spillway pipes: Yes <br />Decant system: <br />20. Trash racks clear and in place: O~^ Ov~:~ic a es <br />Yes <br />8 <br />Yes <br />No <br />in. <br />Total = 7.5:1 <br />Yes No N/A <br />Yes NO N/A <br />Yes No N/A <br />YES NO N/A <br />Yes No N/A <br />Yes No N/A <br />YES NO N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes N N/A <br />YES N N/A <br />ID.b feet <br /> feet <br />Yes / rve-~ N/A <br />~~~ <br />N/A <br />No N/A <br />*Major adverse changes in these items could cause instability and should be reported to <br />the Engineering Manager and Mine Superintendent for further evaluation. Adverse <br />conditions noted in these items should normally be described (extent, location, volume, <br />etc.) in the space on the back of this sheet. <br />