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' PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />^~ a <br />INSPECTOR'S NAME: Dennis Jones DATE: 6 -~ 'C~3 <br />FADILITYDCONFIGURATION00CrossDVa11ey5POnd DATE LAST INSPECTION: I ` <br />3~1s-o3 <br />SITE NAME: Pond #015 LOCATION: NE'/, SE'/„ Sec. 23, T5N, R88W <br />MINE NAME: Seneca II-W Mine (Seneca Coal Co) LOCATION: 8 mi. S of Hayden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Gregg Kitchen, Gen Mgr <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: 12 <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 2.5:1 upstream, 3.5:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: N/A + <br /> <br />At isolated points on embankment slopes: ~ <br />~ <br />~voJ <br />N/A <br /> At natural hillside: ~ ~ N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: ® N/A <br /> "Boils" beneath stream or ponded water: Yes o N/A <br />7. Cracks or scarps on crest: Yes ~ N/A <br />B. Cracks or scarps on slope: Yes N® N/A <br />9. Sloughing or bulging on slope: Yes ~o~ N/A <br />10. *Major erosion problems: ~ Yes ~ N/A <br />11. Surface movements in valley bottom or on hillside: ® N <br />o N/A <br />12. *ErOSiOn of toe: Yes / <br />~ <br />( ISoI <br />< N/A <br />13. *Water impounded against toe: Yes ~~g <br />J N/A <br />14. Existing embankment freeboard: (normal = 4.0') ~~ feet <br />15. Increase Decrease in water level: LLO c.~no wq~~ feet <br />16. Cracks, bulging, or erosion on upstream face: <br />17. Visible sumps or sinkholes in slurry surface: N/A <br />18. *Clogging <br /> Spillway channels and pipes: Yes ®o N/A <br /> Decant system: N/A <br /> Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ N/A <br /> Decant System: N/A <br />20. Trash racks clear and in place: Y s No N/A <br />*Major adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted in <br />these items should normally be described (extent, location, volume, etc.) in the space on the <br />back of this sheet. <br />