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~ PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />w~c~w,s IA.t: I leer C <br />INSPECTOR'S NAME:. Dennis Jones DATE: 3 ~~`~~~ <br />NPD S I D NO CO-0000221 D P 017 <br />E .. <br />D <br />~ <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTI ON: <br />_~_L ~-~ <br />SITE NAME : Pond #017 LOCATION: SW'/a NE'/„ Sec. 34, TSN, RSSW <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.: Greg g Kitchen, Gen Mgr <br /> <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 />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: 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 />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Erosion of toe: <br />*Water impounded against toe: <br />Existing embankment freeboard: (normal = 3.1') <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 place: <br />N/A <br />Yes ~ N/A <br />N/A ~J <br />N/A <br />Yes No N/A <br />N/A <br />Yes 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 />Yes <br />_ in. <br />Yes <br />No <br />Total = 6:1 <br />N/A <br />Yes o <br />Yes No <br />Yes No <br />es No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />YES NO <br />Yes No <br />Yes N <br />3 . l feet <br />(~~ feet <br />Yes Q <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 />NjA <br />N/A <br />N/A <br />