Laserfiche WebLink
.TFf? <br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 0 - 3- C ) <br />NPDES I.D. NO.: CO-0000221 D.P. 005 1 /_ O <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: b O <br />SITE NAME: Pond #005 LOCATION: NW1/ SWIA, Sec. 10, T5N, 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.: Roy Karo, Gen Mar <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: 12 in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.5:1 upstream, 2.5:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, andaproximate volume) <br /> From underdrain pipes: MLt- .C c. tj . ko ?F foLO Yes No N/A <br /> At isolated points on embankment p s: Yes N/A <br /> At natural hillside: Yes N/A <br /> Over widespread areas: Yes 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 slope: Yes J N/A <br />9. Sloughing or bulging on slope: Yes N/A <br />10. *Major erosion problems: Yes N/A <br />11. Surface movements in valley bottom or on hillside: Yes N/A <br />12. *Erosion of toe: Yes No N/A <br />13. *Water impounded against toe: Yes N/A <br />14. Existing embankment freeboard: (normal = 7.41) 4t( feet <br />15. Increase Decrease in water level: O-S feet <br />16. Cracks, bulging, or erosion on upstream face: Yes No N/A <br />17. Visible sumps or sinkholes in slurry surface: N/A <br />18. *Clogging <br /> Spillway channels and pipes: Yes No N/A <br /> Decant system: Inoperable Yes Ne n <br /> Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ? N/A <br /> Decant system: Inoperable Yee Pde ?41n <br />20. Trash racks clear and in lace: ® No N/A <br />21. Discharge rate (gpm) k)R `nom lw?? ?eed bQ?oW ?SC?nctlra lS2 <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.