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PERIODIC INSPECTION FORM <br />Water, Sedimeat, or Slurry Impouadments <br />INSPECTOR'S NAME: Dennis Jones <br />NPDES I.D. NO.: CO-0000221 D.P. 013 <br />FACILITY CONFIGURATION: Cross-Valley Pond <br />SITE NAME: Pond #013 <br />MINE NAME: Yoast Mine(Seneca Coal Co) <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 <br />DATE: ~j-~7-OS <br />DATE LAST INSPECTION: 3'I~(-oS <br />LOCATION: SE3f NW',(, Sec. 19, TSN, R87W <br />LOCATION: 8.5 mi. SE of Hayden, CO <br />OWNER'S REP.: Gregg Kitchen, Gen Mgr <br />Circle or write is appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3:1 upstream 3:1 downstream Total = 6:1 <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 />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: N/A <br />At isolated points on embankment slopes: Yes <br />At natural hillside: Yes <br />Over widespread areas: Yes <br />From downstream foundation area: Yes <br />"Boils" beneath stream or ponded water: Yes <br />Cracks or scarps on crest: Yes <br />Cracks or scarps on slope: Yes <br />Sloughing or bulging on slope: Yes <br />*Major erosion problems: Yes <br />Surface movements in valley bottom or on hillside: Yes <br />No <br />No <br />No <br />No <br />No <br />No <br />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 />*Erosion of toe: Yes No <br />*Water impounded against toe: Yes <br />Existing embankment freeboard: (normal = 4') ~? feet <br />Increase ~/ Decrease in water level: Q-2 feet <br />Cracks, bulging, or erosion on upstream face: Yes ©o <br />visible sumps or sinkholes in slurry surface: N/A <br />*Clogging <br />Spillway channels and pipes: Yes <br />Decant system: N/A <br />Diversion ditches: YA3 <br />*Cracking or crushing of pipes <br />Spillway pipes: Yes <br />Decant system: N/A <br />Trash racks clear and in place: Yes <br />N/A <br />No N/A <br />No N/A <br />N/A <br />No N/A <br />*Major adverse changes in these items could cause instability and should be reported to <br />the Engineering Manager and Mine Superintendent for further evaluation. Adverse <br />conditions noted in these items should normally be described (extent, location, volume, <br />etc.) in the space on the back of this sheet. <br />