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PERIODIC INSPECTION PORN <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 09/29/94 <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: N/A <br />SITE NAME: Truck Waeh SuoDly Pond LOCATION: NW'k, NE~i, Sec 34, T6N, R87W <br />MINE NAME: Seneca Mine (Seneca Coal Co.l LOCATION: 7 mi. SE of Hayden, CO <br />MINE I.D. NO.: CDMG Permit No. C-005-80 OWNER'S REP.: Scott Williams, Gen.Mgr <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />Circle Or write is BDDrODriat9 YeaDOII6e <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 elope: 2:1 upstream, 2:1 downstream <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment elopes: <br />At natural hillside: <br />Over widespread areas: <br />From downstream foundation area: <br />"Boils" beneath stream or ponded water: <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 />Cracks or ecarpa on treat: <br />cracks or ecarpa on elope: <br />Sloughing or bulging on elope: <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: <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 />~~ No N/A <br />12 inches <br />Ye NO <br />N/A <br />Yes ~ <br />I <br />~v9~ N/A <br />Total = 4:1 <br />Yes No `~' <br />Yes No <br />Yes <br />Yea ~170~ <br />Yes ar <br />Yes <br />Yes <br />Yes '~ <br />Yes `Jo <br />Yes <br />Yes No <br />Yes <br />Yee <br />2.5 feet <br />0 feet <br />Yes <br />Yes No <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 />N/A <br />Yes ~J~ N/A <br />Yes No ~ <br />es No N A <br />Yea ~ N A <br />Yee No A <br />Yee No ~~ <br />*Major adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Hine 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 />