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PERIODIC INSPECTION FORM <br /> Water, Sediment, or Slurry Impoundm <br />nts <br />e <br />INSPECTOR' S NAME: Dennis Jones '' <br />7 <br />DATE: ~~ `~ /" <br />NPDES I.D. NO.: CO-0000221 D.P. 016 C <br />FACILITY CONFIGURATION: Cross-Valley Pond ~_~ <br />DATE LAST INSPECTION: Q ,O <br />J <br />SITE NAME: Pond #016 LOCATION: NEib SE'6. 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.: Gregg Kitchen, Gen Mar <br />Circle or write in aoorooriate 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): <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 N® <br /> At natural hillside: © 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 N <br />10. *Major 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: Ye <br />s No <br />14. Existing embankment freeboard: (normal = 6.8') ~ <br />~ <br />/ <br />t~•o feet <br />15. Increase Decrease in water level: La o~g feet <br />16. Cracks, bulging, or erosion on upstream face: Yes Ida <br />17. Visible sumps or sinkholes in slurry surface: NLA, <br />18. *Clogging <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/R <br />N/A <br />N/A <br />Spillway channels and pipes: Yes 2~o N/A <br />Decant system: NL <br />Diversion ditches: <br />19. *Cracking or crushing of pipes <br />Spillway pipes: Yes No N/A <br />Decant system: N A <br />20. Trash racks clear and in place: es 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 />