Laserfiche WebLink
PHRIODIC ZN9PHCTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 03/29/95 <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: Final Pit Impoundment DATE LAST INSPECTION: 12/15/94 <br />SITE NRME: PeCoCo Reservoir LOCATION: NWSS. Sec. 2. T6N. R87W <br />MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Hayden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Scott Williams, Gen Mar <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 />18 <br />19 <br />20 <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 slope (degrees) <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: Sees ee 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 />Circle or write in aonrovriate reaconae <br />es No <br />inches <br />No <br />Yes <br />degrees <br />Yes <br />Yes <br />Yes N <br />Yes o <br />Yes <br />Yes <br />Yes o <br />Yes o <br />Yes <br />Yes o <br />Yes N <br />Yes too <br />Yes No <br />6.0 feet <br /> Eeet <br />Yes ~~-!~ <br />Yes CNg~ <br />*Clogging <br />Spillway channels <br />Decant system: _ <br />Diversion ditches: <br />+Crackinq or crushing of <br />Spillway pipes: _ <br />Decant system: <br />and pipes: <br />Yes <br />Yes <br />Yes <br />pipes <br />Trash racks clear and in place: <br />Yes ;~ <br />Yes <br />es 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 />