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<br />PERIODIC INSPECTION FORM <br />Yater, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Tom Wainwright <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: Fina Ptt IRIDOUn ment_ <br />SITE NAME: PeCoCo Reservoir <br />MINE NAME: Seneca Mine (Pea o v Coa Comoanv)_ <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 <br />DATE: 03/18/92 <br />DATE LAST INSPECTION: 11/21/91 <br />LOCATION: NWw NWw,SEC 2, T-~~R86W <br />LOCATION: mt S o Hav en. CO <br />OWNER'S REP.:Scott Williams, Supt. <br />Circle or write in aoorooriate resoonse <br />1. Foundation preparation (removal of vegetation, stumps, topsoil?) Yes No <br />2. Lift thickness (inches) 12 inches <br />3. Compaction according to approved plan es No <br />4. Burning (specify extent and location) Yes ©o <br />5. Angle of slope (degrees) 18.6 degrees <br /> <br />6. * <br />Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes Yes o <br /> At isolated points on em an ment s open Yes o <br /> At natural hillside Yes o <br /> Over widespread areas Yes <br /> From downstream foundation area Yes <br /> "Boils" beneath stream or ponded water Yes <br />7. Cracks or scarps on crest Yes ©o <br />8. Cracks or scarps on slope Yes ®o <br />9. Sloughing or bulging on slope Yes !~o <br />10. *Major erosion problems Yes ®o <br />11. Surface movements in valley bottom or on hillside Yes <br />12. *Erosion of toe Yes <br /> <br />13. * <br />Water impounded against toe <br />Yes <br />14. Existing embankment freeboard (feet) 5 feet <br />15. X Increase Decrease in water level (feet) 1 feet <br />16. Cracks, bulging, or erosion on upstream face Yes ©o <br />17. Visible sumps or sinkholes in slurry surface Yes <br /> <br />18. * <br />Clogging <br /> Spillway channels and pipes es No <br /> Decant system Yes ©o <br /> Diversion ditc es Yes o <br />19 *Cracking or crushing o pipes <br /> Spillway pipes Yes ~o <br /> Decant system Yes No <br />20. Trash racks clear and in place Yes No <br />* <br />Ma <br />jor adverse changes in these items could cause instability and should be <br />repor <br />ted to the <br />Eng ineering Manager and Mine Superintendent for further evaluation. Adverse cond itions note <br />in these items should normally be described (extent, location, volume, etc.) in the space on <br />the back of this sheet. <br />