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~•~ PERIODIC INSPECTION FORM Water, Sediment, or Slurry Impoundments INSPECTOR'S NAME: Rov Karo DATE: 09/25/95 NPDES I.D. NO.: COG-850008-002A FACILITY CONFIGURATION: Embankment Pond DATE LAST INSPECTION: 06/28/95 SITE NAME: Rail Looo Pond 2 LOCATION: SES: SW'/.. Sec. 14. T6N. RSSW MINE NAME: H-G Terminal. Inc. LOCATION: 2 mi. SE of Hayden. CO MINE I.D. NO.: CMLRD Permit No. C-92-081 OWNER'S REP.: Scott Williams. Gen Mar Circle or write in aoorooriate reaoonse 1. Burning (specify extent and location): Yes No 2. Angle of slope: 3.75:1 upstream, 2:1 downstream Total = 5. 75:1 N/A 3. *5eepage (specify location, color, and approximate volume) From underdrain pipes: Yes No /A At isolated points on embankment slopes: Yes o N At natural hillside: Yes N/A Over widespread ar=_as: _ Yes N/A From downstream foundation area: Yes N/A "Boils" beneath stream or ponded water: Yes N/A 4. Cracks or scarps on crest: Yes o N/A 5. Cracks or scarps on slope: Yes o N/A 6. Sloughing or bulging on slope: Yes N/A 7. *Major erosion problems: Yes o N/A 8. Surface movements in valley bottom or on hillside: Yes N/A 9. *Erosion of toe: Yes o N/A 10. *Water impounded against toe: Yes No N/A 11. Existing embankment freeboard: See comments 5 feet 12. Increase X Decrease in water level: Aooroximatelv 1 feet 13. Cracks, bulging, or erosion on upstream face: Yes ®° 14. Visible sumps or sinkholes in slurry surface: Yes No N/A 15. *Clogging Spillway channels and pipes: Yes ©o Decant system: Yes No / Diversion ditches: Yes ~ A 16. *Crackinq or crushing of pipes Spillway pipes: Yes No Decant system: Yes No 17. Trash racks clear and in place: Yes No N/A *Major adverse changes in these items could cause instability and should be reported to the Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted in these items should normally be described (extent, location, volume, etc.) in the space on the back of this sheet.