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PERIODIC INSPECTION FORM <br />- Water, Sediment, or Slurry ImpoundmenGts <br />INSPECTOR'S NAME: Dennis Jones DATE: G-~L(_~ 6 <br />NPDES I.D. NO.: N/A ~_p~~/ <br />FACILITY CONFIGURATION: Final Pit Impoundment DATE LAST INSPECTION: 0 O <br />SITE NAME: PeaCoCo Reservoir LOCATION: SW'/. NW'/., Sec. 2. TSN. R87W <br />MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Havden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Gregg Kitchen. Gen Mgr <br />Circle Or write in aDAT'Oprlate reSpOn6e <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. *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: Y <br />es No <br />14. Existing embankment freeboard: (normal = 6.1') ~ <br />~ <br />~•t feet <br />15. Increase Decrease in water level: ltd c~naHU 0 feet <br />16. Cracks, bul in ~ <br />g g, or erosion on upstream face: <br />Yes <br />17. Visible sumps or sinkholes in slurry surface: NL <br />18. *Clogging <br /> Spillway channels and pipes: Yes Nfi <br /> Decant system: <br /> Diversion ditches: <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes No <br /> Decant system: N A <br />20. Trash racks clear and in place: 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 />