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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: Z 19- D <br />NPDES I.D. NO.: CO-0000221 D.P. 005 0-9-0 <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: SITE NAME: Pond #005 LOCATION: NW1/4 SWl/, Sec. 10, 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.: Roy Karo, Gen Mar <br />Circle or write in avDroDriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: - Yes <br />2. Lift thickness: 12 in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.5:1 upstream, 2.5:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, and ap roximate volume) <br /> From underdrain pipes: I Ck a Iwt,? es No N/A <br /> At isolated points on embankment slopes: Yes o- N/A <br /> At natural hillside: Yes No N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: Yes No N/A <br /> "Boils" beneath stream or ponded water: Yes No N/A <br />7. Cracks or scarps on crest: Yes No N/A <br />8. Cracks or scarps on slope: Yes No N/A <br />9. Sloughing or bulging on slope: Yes No N/A <br />10. *Major erosion problems: Yes No N/A <br />11. Surface movements in valley bottom or on hillside: Yes No N/A <br />12. *Erosion of toe: Yes No N/A <br />13. *Water impounded against toe: Yes N N/A <br />14. Existing embankment freeboard: (normal = 7.41) _ feet <br />15. Increase Decrease in water level: 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 />v <br />18. *Clogging <br /> Spillway channels and pipes: Yes N/A <br /> Decant system: Inoperable -dpi <br /> Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes (?) N/A <br /> Decant system: Inoperable 3es lie N14 <br />20. Trash racks clear and in place: Yes No N/A <br />21. Discharge rate (gpm) ? ? <br />b <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 />C3 l ??od s ?L61,-) ob^" <br />UvU.L? .