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<br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Michael Altavilla DATE: 12/04/95 <br />NPDES I.D. NO.: COG-850008~002A <br />FACILITY CONFIGURATION: Embankment Pond DATE LAST INSPECTION: 09/25/95 <br />SITE NAME: Rail Looo Pond 2 LOCATION: SEi: SWY.. Sec. 14. T6N. R88W <br />MINE NAME: H-G Terminal. Inc. LOCATION: 2 mi. SE of Hayden. CO <br />MINE I.D. NO.: CMLRD Permit No. C-92-081 OWNER'S REP.: Scott Williams. Gen Mar <br />Circle or write in aoorooriate reeoonse <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 />13 <br />14 <br />15 <br />16 <br />17 <br />Burning (specify extent and location): <br />Angle of slope: 3.75:1 upstream, 2:1 downstream Total = <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment slopes: <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 slope: <br />Sloughing or bulging on slope: <br />*Maj or erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Erosion of toe: <br />*Water impounded against toe: <br />Existing embankment freeboard: See comments <br />Increase Decrease in water level: No chance <br />Cracks, bulging, or erosion on upstream face: <br />Visible sumps or sinkholes in slurry surface: <br />*Clogging <br />Spillway channels and pipes: <br />Decant system: <br />Diversion ditches: <br />*Crackinq or crushing of pipes <br />Spillway pipes: <br />Decant system: <br />Trash racks clear and in place: <br />Yes No N/A <br />5.75:1 N/A <br />Yes No <br />Yes <br />Yes No <br />Yes <br />Yes <br />Yes <br />Yes o <br />Yes to <br />Yes <br />Yes o <br />Yes o <br />Yes o <br />Yes No <br />5 feet <br />_ feet <br />Yes No <br />Yes No <br /> <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 />Yes o N A <br />Yes o <br />Yes 0° <br />Yes No <br />Yes No <br />Yes No <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 />