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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones <br />NPDES I.D. NO.: CO-0000221 D.P. <br />FACILITY CONFIGURATION: Cross-Val <br />SITE NAME: Pond #013 <br />MINE NAME: Yoast Mine(Seneca Coal <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 <br />DATE : S-14-0q <br />DATE LAST INSPECTION: V- 1 O 69 <br />LOCATION: SEl/a NWl/,Sec. 19, T5N, R87W <br />LOCATION: 8.5 mi. SE of Hayden, CO <br />OWNER'S REP.: Roy Karo, Gen Mgr <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 />20 <br />21 <br />Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />Lift thickness: in. <br />Compaction according to approved plan: <br />Burning (specify extent and location): No <br />Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1 <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: N/A <br />At isolated points on embankment slopes: Yes <br />At natural hillside: Yes <br />Over widespread areas: Yes <br />From downstream foundation area: Yes <br />"Boils" beneath stream or ponded water: Yes <br />Cracks or scarps on crest: S V--c ckv.l S o i, G%ft cc- tS - \ <Ee?, <br />Cracks or scarps on slope: Yes <br />Sloughing or bulging on slope: Yes <br />*Major erosion problems: Yes <br />Surface movements in valley bottom or on hillside: Sep. oA",,S (,QQ- y? <br />*Erosion of toe: Yes <br />*Water impounded against toe: Yes <br />Existing embankment freeboard: (normal = 41) <br />Increase V Decrease in water level: <br />Cracks, bulging, or erosion on upstream face: Yes <br />Visible sumps or sinkholes in slurry surface: N/A <br />*Clogging <br />Spillway channels and pipes: Yes <br />Decant system: N/A <br />Diversion ditches: Yes <br />*Cracking or crushing of pipes <br />Spillway pipes: Yes <br />Decant system: N/A <br />Trash racks clear and in place: Y s <br />Discharge rate (gpm) „ 5i- W J I _ cs <br />0 <br />No <br />No <br />No <br />,XN <br />No <br />N <br />INo <br />No <br />Veet <br />feet <br />(0 <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />?To N/A <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, <br />volumeetc.) in the space on the back of this sheet. <br />Co) <br />Pond <br />013