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PBRIODIC IRSPBCTION FORM <br />Water, S~disant, or Blurry I~poundstants <br />INSPECTOR'S NAME: Michaw7 A7tav~7la DATE: 06/29/99 <br />NPDES Z.D. NO.: C0-0000221 D_P. 009 <br />FACILITY CONFIGURATION: Crewe-Valley Pend DATE LAST INSPECTION: 03/23/99 <br />SITE NAME: Pend 1009 ~~LOCATION: SR'k SWi~ Sec_ 71 T5N RBBW <br />MINE NAME: Senwca II-W Mine (cwneca~eal Co 1COl ~~LOCATION: 8 mi. S of Hayden CO <br />MINE I.D. NO.: CMr.un P rmit Ne. C-B -057 OWNER'S AEP.: Brad Hrewn, Gen Mqr <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />7. <br />8. <br />9. <br />10. <br />11. <br />12. <br />Foundation preparation (removal of vegetation, stumps, topsoil: <br />Lift thickness: <br />Compaction according to approved plan: <br />Burning (specify extent and location): <br />Angle of elope: 3:1 upstream, 3:I downstream <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment elopes: <br />At natural hillside: <br />Over widespread areas: <br />From downstream foundation area: <br />"Boils" beneath stream or ponded water: <br />Cracks or scarps on crest: <br />Cracks or scarps on elope: <br />Sloughing or bulging on elope: <br />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Broeion of toe: <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yea <br />Yee <br />Yee <br />Yee <br />Yee <br />13. *Water impounded against toe: <br />14. <br />15. <br />16. <br />17. <br />18. <br />19 <br />20 <br />Existing emban)anent freeboard: An~nroximately 7.0 <br />No <br />0 <br />,~,~` <br />,`U,~~ <br />LJ <br />,,~A~°°o~~ <br />l~ <br />feet <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/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />~ Increase Decrease in water level: 1.4 feet <br />Cracks, bulging, or erosion on upstream face: Yee ~ N/A <br />Visible sumps or sinkholes in slurry surface: Yee No <br />*Clogging <br />Spillway channels and pipes: Yee ®° N/A <br />Decant system: Yee No (~j}~ <br />Diversion ditches: Yee No ~7`!~~` <br />*Cracking or crushing of pipes <br />Spillway pipes: Yee lo> N A <br />Decant system: Yes No <br />Trash racks clear and in place: ee~ No N/A <br />Ye <br />~_ <br />-®e <br />_ Yee <br />No <br />in <br />No <br />No <br />Total = 6.1 <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 <br />in these items should normally be described (extent, location, volume, etc.) in the space on <br />the back of this sheet. <br />