Laserfiche WebLink
PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis ,zones DATE: 12./1697 <br />NPDES I.D. NO.: CO-0000221 O.P. 009 <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 09 [4/97 <br />SITE NAME: Pond lt009 LOCATION: BF.4 SW's ce~tt. TSN R88W <br />MINE NAME: c n a rl-w M'n ~ S n a oaf col LOCATION: 8 mi. 5 of Hayden. CO <br />MINE I.D. NO.: CMr.Rn Parma No_ C-8 -OS7 OWNER'S REP.: Brad Brown,_{3en Mqr <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A <br />2. Lift thickness: ~2 in. N/A <br />3. Compaction according to approved plan: Yes No N/A <br />4. Burning (specify extent and Location): Yea No ~1.C J <br />5. Angle of elope: 3:t upstream, 3:1 downstream Total = 6:1 N/A <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yes No <br /> At isolated points on embankment slopes: Yes ~ N/A <br /> At natural hillside: Yea ~ N/A <br /> Over widespread areas: Yea N N/A <br /> From downstream foundation area: Yes N/A <br /> "Boils" beneath stream or ponded water: Yes ~ N/A <br />7. Cracks or scarps on crest: Yes ® N/A <br />8. Cracks or scarps on elope: Yea ® N/A <br />9. Sloughing or bulging on elope: Yee ~ N/A <br />10. *Major erosion problems: Yes ® N/A <br />11. Surface movements in valley bottom or on hillside: Yee ~ N/A <br />12. *Erosion of toe: Yee N N/A <br />13. *Water impounded against toe: Yee ~ N/A <br />14. Existing embankment freeboard: Approximately 7"g feet <br />15. Increase ~ Decrease in water level: 1.0 feet <br />16. Cracks, bulging, or erosion on upstream face: Yee ~ N/A <br />17. Visible sumps or sinkholes in slurry surface: Yee No (~ <br />18. *Clogging <br /> Spillway channels and pipes: Yes N® N/A <br /> Decant eyet em: Yee No <br /> Diversion ditches: Yee No <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ N/A <br /> Decant system: Ye9 No <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 <br />in these items should normally be described (extent, location, volume, etc.) in the apace on <br />the back of this sheet. <br />