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October 19, 2011 C -1982 -057 /Seneca II -W Mine SLB <br /> <br /> <br />Number of Partial Inspection this Fiscal Year: 8 <br />Number of Complete Inspections this Fiscal Y ear: 2 <br /> <br /> Page 2 of 5 <br /> <br /> <br /> <br />Inspection Topic Summary <br />NOTE: Y =Ins pected N =Not Inspected R =Comments Noted V =Violation Issued NA =Not Applicable <br />NA - Air Resource Protection <br />N - Availability of Records <br />Y - Backfill & Grading <br />NA - Excess Spoil and Dev. Waste <br />NA - Explosives <br />N - Fish & Wildlife <br />R - Hydrologic Balanc e <br />Y - Gen. Compliance With Mine Plan <br />NA - Other <br />NA - Processing Waste <br /> <br />N - Roads <br />N - Reclamation Success <br />N - Revegetation <br />NA - Subsidence <br />R - Slides and Other Damage <br />N - Support Facilities On -site <br />N - Signs and Markers <br />NA - Support Facilities No t On -site <br />NA - Special Categories Of Mining <br />N - Topsoil <br /> <br /> <br />COMMENTS <br /> <br />This was a partial inspection of the Seneca II -W Mine conducted by Susan Burgmaier, Sandy Brown, and Zack <br />Trujillo of DRMS. Jill Carlson of the C olorado G eological S urvey participated in the inspection to provide <br />geotechnica l assistance wit h the landslides . Jay James represented Seneca Coal Company during the site <br />inspection. Weather conditions were sunny and warm; ground conditions were dry. <br /> HYDROLOGIC BALANCE - Rule 4.05 <br /> Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Dischar ge Structures 4.05.7, <br />4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring <br />4.05.13; Drainage – Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br /> Ponds 006 and 016 and stock tank T5 held water. Stock tank T20 was muddy but not holding water. The <br />spoil spring at the Pond 016A slide area was flowing into Pond 016. <br /> <br />The leak on groundwater monitoring well WWC25 appeared to have worsened; there was an approxima tely 10’ x <br />10’ area around the well casing that was saturated. The water appeared to be leaking from the annulus of the well. <br />This was confirmed by the operator, who provided information on the completion of the well that would suggest <br />that the bentonite seal is faulty. <br />ROADS – Rule 4.03 <br />Construction 4.03.1(3)/4.03.2(3); Drainage 4.03.1(4)/4.03.2(4); Surfacing and M aintenance4.03.1(5) and <br />(6)/4.03.2(5) and (6); Reclamation 4.03.1(7)/4.03.2(7): <br /> A backhoe was clearing culverts along the Tie -Across Haul Road. <br /> <br />SLIDES and DAMAGE - Rule 4.12: <br /> Repair work was underway on the Pond 016A slide, in accordance with the approved plan under <br />Technical Revision 73. Most of channel PM2 had been constructed and lined with rip rap, and Culvert J -2A had <br />bee n installed. An excavator and bulldozer were working the road cut on the north/northeast side of Road J, <br />excavating slide material for placement in the former Pond 016A location. The alignment of Road J had been <br />roughed in, and will be placed further to the west than initially proposed, in order to keep the roadway out of the