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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 <br />DATE: <br />013 <br />ley Pond DATE LAST <br />LOCATION: <br />Co) LOCATION: <br />-94-082 OWNER'S R. <br />-7-0 <br />Q Q <br />INSPECTION: V f I 0 <br />SEl/4 NWV4, Sec. 19, T5N, R87W <br />8.5 mi. SE of Hayden, CO <br />;P.: Roy Karo, Gen Mar <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: _ Yes <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: N/A <br /> At isolated points on embankment slopes: Yes o N/A <br /> At natural hillside: Yes o N/A <br /> Over widespread areas: Yes o N/A <br /> From downstream foundation area: Yes o N/A <br /> "Boils" beneath stream or ponded water: Yes N/A <br />7. Cracks or scarps on crest: S KE4 l1 c.Qyy G 1 1 c "t 5 - O e No N/A <br />8. Cracks or scarps on slope: 1% e No N/A <br />9. Sloughing or bulging on slope: Yes o N/A <br />10. *Major erosion problems: Yes No N/A <br />11. Surface movements in valley bottom or on hillside: C?P-cn1t S? ® N/A AC? <br />12. *Erosion of toe: Yes N N/A / <br />13. *Water impounded against toe: Q (00 N/A <br />14. Existing embankment f reeboard: (normal = 41) S77 feet <br />15. Increase ? Decrease in water level: 0.9, feet <br />16. Cracks, bulging, or erosion on upstream face: Yes N/A <br />17. Visible sumps or sinkholes in slurry surface: N/A <br />18. *Clogging <br /> Spillway channels and pipes: Yes No N/A <br /> Decant system: N/A <br />Q <br /> Diversion ditches: Yes N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes 0 N/A <br /> Decant system: N/A <br />20. Trash racks clear and in place: 0 No N/A <br />21. Discharge rate (gpm) Ldcc?-C IZc 'D to :.S .tsitt <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.