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PERIODIC INSPECTION FORM <br /> Water, Sediment, or Slurry Impoun <br />dment <br />s <br /> <br />INSPECTOR' <br />S NAME: Dennis Jones l <br />^ <br />?~ <br />DATE: S / D _ y C~ <br />NPDES I.D. NO.: CO-0000221 D.P. 016 C( <br />~S <br />~ <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 6 - ~ <br />1 <br />SITE NAME: Pond #016 LOCATION: NEB/. SEA/., Sec. 27, TSN. 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.: Greaa Kitchen Gen Mgr <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: Yes <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: <br /> At isolated points on embankment slopes: Yes No N/A <br /> At natural hillside: Yes N/A <br /> Over widespread areas: es No N/A <br /> From downstream foundation area: - 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. *Maj or erosion problems: Yes No N/A <br />11. Surface movements in valley bottom or on hillside: Yes N/A <br />12. *Erosion of toe: Yes N N/A <br />13. *Water impounded against toe: Yes NfA <br />14. Existing embankment freeboard: (normal = 7.0') 7 ~ feet <br />15. Increase Decrease in water level: I n.o c ~ak~ feet <br />16. Cracks, bulging, or erosion on upstream face: Yes N® N/A <br />17. Visible sumps or sinkholes in slurry surface: N A <br />18. *Clogging <br /> Spillway channels and pipes: Yes iSo N/A <br /> Decant system: NL <br /> Diversion ditches: NL <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes No N/A <br /> Decant system: <br />20. Trash racks clear and in place: Ye No N/A <br />*Maj or 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 />