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PERIODIC INSPECTION FOAN <br />9oater, Sediment, or Slurry ImDOUndments <br />INSPECTOR' S NAME: Dennis Jones DATE: ('~ - ~ ~+ ' O <br />NPDES I.D. NO.: CO-0000221 D.P. 016 G~ <br />FACIL ITY C ONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 3 'I I' ~ 1 <br />SITE NAME: Pond #016 LOCATION: NEB SE'k, 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.: Greg g Kitchen, Gen Mqr <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: N A <br /> At isolated points on embankment slopes: Y No N/A <br /> At natural hillside: Yes ~ N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: s ~ N/A <br /> "Boils" beneath stream or ponded water: es 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 No N/A <br />13, *Water impounded against toe: Y <br />e s N N/A <br />14. Existing embankment freeboard: (normal = 7.0') -- <br />ff <br />//II <br />~ feet <br />15. Increase Decrease in water level: ItiO c~~a~liv feet <br />16. Cracks, bulging, or erosion on upstream face: Yes to N/A <br />17. Visible sumps or sinkholes in slurry surface: <br />18. *Clogging <br /> Spillway channels and pipes: Yes 16o N/A <br /> Decant system: N A <br /> Diversion ditches: <br />19. *Cracking or crushing of pipes <br /> <br />Spillway pipes: <br />Yes ~} <br />ivo <br />N/A <br /> Decant system: N <br />20. Trash racks clear and in place: Yes 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 />