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December 11, 2012 C-1991-078/Hamilton Mine MLT <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted <br /> V=Violation Issued NA=Not Applicable <br /> NA - Air Resource Protection R -Roads <br /> N - Availability of Records Y -Reclamation Success <br /> NA -Backfill & Grading Y -Revegetation <br /> NA -Excess Spoil and Dev. Waste NA - Subsidence <br /> NA -Explosives NA - Slides and Other Damage <br /> Y -Fish& Wildlife NA - Support Facilities On-site <br /> R -Hydrologic Balance R - Signs and Markers <br /> NA - Gen. Compliance With Mine Plan NA - Support Facilities Not On-site <br /> N - Other NA - Special Categories Of Mining <br /> NA -Processing Waste NA - Topsoil <br /> COMMENTS <br /> A partial inspection of the Hamilton Mine was conducted by me, Marcia Talvitie, of the DRMS <br /> on Tuesday afternoon, December 11, 2012. Skies were clear and the temperature was cool. <br /> The western slope of Colorado has continued to experience unusually dry weather. Some snow <br /> was visible on the LaSal Mountains and the northern San Juans (Photo 1), but lower elevations <br /> were clear. <br /> The ground surface within the permit area was extremely 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; Discharge Structures <br /> 4.05.7, 4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; <br /> Surface Water Monitoring 4.05.13; Drainage—Acid and Toxic Materials 4.05.8; Impoundments <br /> 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br /> • Sediment Pond B was dry. The primary and emergency spillways were clear(Photo 2). <br /> • All culvert pipes, which will remain as permanent structures together with the access road to <br /> Mining Area No. 3, were clear. <br /> • It appeared that groundwater monitoring well BW-2, has been reclaimed. The casing which <br /> previously extended above the ground was no longer visible, and there was evidence of <br /> construction activities having taken place at this location (Photo 3). <br /> Number of Partial Inspection this Fiscal Year: 4 <br /> Number of Complete Inspections this Fiscal Year: 2 Page 2 of 5 <br />