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r <br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: <br />NPDES I.D. NO.: N A ~ ~ . O <br />FACILITY CONFIGURATION: Cross-Vallev Pond DATE LAST INSPECTION: <br />SITE NAME: Pond #016A LOCATION: NEB/. SEA/., Sec. 27 TSN, RS W <br />MINE NAME: Seneca II-W Mine (Seneca Coal Co) LOCATION: 8 mi. S of Havden CO <br />MINE T.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Gregg Kitchen Gen Mgr <br />Circle or write in appropriate response <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 />19 <br />19 <br />20 <br />21 <br />Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />Lift thickness: <br />Compaction according to approved plan: <br />Burning (specify extent and location): <br />Angle of slope: 3:1 upstream, 3:1 downstream <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 )<reeboard: (normal <br />Increase ~/ Decrease in water level: <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 />*Cracking or crushing of pipes <br />Spillway pipes: <br />Decant system: <br />Trash racks clear and in lace: <br />Discharge rate (gpm) Wa~~Q,~n ~Q VC~3 ~~f- ~oe ~d~ (SCjna~.~ <br />in. <br />_ NO <br />Total = 6:1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />~A <br />Yes No N/A <br />Yes No N/A <br />Yes No N A <br />Yes No N/A <br />Yes o N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />~Yes~ No N/A <br />(• J feet <br />3.0 feet <br />Yes ~ N/A <br />N A <br />Yes ~ N/A <br />N[A <br />NL <br />Yes IBC N/A <br />N A <br />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 in <br />these items should normally be described (extent, location, volume, etc.) in the space on the <br />back of this sheet. <br />