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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: ~~' ~ ~~ S <br />NPDES I.D . NO.: N/A <br />FACILITY CONFIGURATION: Final Pit Impoundment DATE LAST INSPECTION: ~~ <br />SITE NAME : PeaCoCo Reservoir LOCATION: SW's NWT/.. Sec. 2. T5N. R87W <br />MINE NAME : Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Hayden. CO <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Greaa Kitchen. Gen Mar <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: inches <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent •and location): No <br />5. Angle of slope (degrees) degrees <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: <br /> At isolated points on embankment slopes: Yes No <br /> At natural hillside: Yes No <br /> Over widespread areas: Yes No <br /> From downstream foundation area: Yes No <br /> "Boils" beneath stream or ponded water: Yes No <br />7. Cracks or scarps on crest: Yes No <br />8. Cracks or scarps on slope: Yes No <br />9. Sloughing or bulging on slope: Yes No <br />10. *Maj or erosion problems: Yes No <br />11. Surface movements in valley bottom or on hillside: Yes No <br />12. *Erosion of toe: Yes No <br />13. *Water impounded against toe: Yes No <br />14. Existing embankment freeboard: (normal = 6.1') 6•l feet <br />15. 1 <br />Increase Decrease in water level: I..u cy~e..~q.Q feet <br />16. <br />g' g, or erosion on upstream face: <br />Cracks, bul in ~ <br />Yes ~NB~ <br /> <br />17. <br />Visible sumps or sinkholes in slurry surface: ~~JJ <br />18. *Clogging <br /> Spillway channels and pipes: Yes ~iPO~ <br /> Decant system: ~ ~/J <br /> Diversion ditches: NL <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes No <br /> Decant system: <br />20. Trash racks clear and in place: <br />*Maj or adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Mine Superintendent £or 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 />