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A *130, 2013 C- 1992 - 080 /Carbon Junction Mine MLT <br />Inspection Topic Summary <br />NOTE: Y= Inspected N =Not Inspected R= Comments Noted V= Violation Issued NA =Not Applicable <br />NA -Air Resource Protection <br />N - Availability of Records <br />N - Backfill & Grading <br />Y - Excess Spoil and Dev. Waste <br />NA - Explosives <br />Y - Fish & Wildlife <br />V - Hydrologic Balance <br />N - Gen. Compliance With Mine Plan <br />N - Other <br />NA - Processing Waste <br />Y -Roads <br />N -Reclamation Success <br />N - Revegetation <br />NA - Subsidence <br />Y - Slides and Other Damage <br />NA - Support Facilities On -site <br />N -Signs and Markers <br />NA - Support Facilities Not On -site <br />N - Special Categories Of Mining <br />N - Topsoil <br />COMMENTS <br />The DRMS conducted a partial inspection of the Carbon Junction Mine on April 30, 2013. <br />Marcia Talvitie and Sandy Brown of the Division were accompanied by four representatives of <br />the Office of Surface Mining (OSM); their names are listed on the first page of this report. The <br />mine was selected by the OSM as part of this year's Special Focus on Reclamation Success: <br />"Stream Channel and Drainage Reconstruction ". The inspection evaluated the various reaches of <br />the Carbon Junction drainage system within the permit area. <br />We arrived at the gate at 9:40 a.m. Skies in the morning were clear, but the wind picked up in <br />the middle of the day, and continued to build in intensity. By the conclusion of the inspection, at <br />2:25 p.m., the skies had become opaque with dust blown in from Arizona and New Mexico. <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 />Carbon Junction Canyon is an ephemeral drainage that bisects the permit area from northeast to <br />southwest. The drainage area is less than one square mile in size. Disturbed areas tributary to <br />the drainage are located on both sides of the channel. <br />Permanent placement of overburden spoil was previously approved within a segment of the <br />Carbon Junction drainage. Placement of this material (now termed the "Permanently Reclaimed <br />Spoils Area ", or PRSA) necessitated that a permanent diversion of the Carbon Junction drainage <br />be constructed. This diversion skirts the northern limit of the PRSA. <br />To conduct this inspection, the group parked at the location where twin 66" corrugated metal <br />pipes (CMPs) carry the Carbon Junction permanent diversion channel beneath the paved haul <br />road. We followed the riprapped channel downstream to the point where it terminates in a <br />Number of Partial Inspection this Fiscal Year: 2 <br />Number of Complete Inspections this Fiscal Year: 3 Page 2 of 7 <br />