_INSPECTION - C1992080 (3) - Laserfiche WebLink

Home Browse Search

November 18, 2013 C-1992-080/Carbon Junction Mine MLT Inspection Topic Summary NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable Y -Air Resource Protection R -Roads R -Availability of Records R -Reclamation Success Y -Backfill& Grading R -Revegetation Y -Excess Spoil and Dev.Waste NA - Subsidence NA -Explosives Y - Slides and Other Damage R -Fish&Wildlife NA - Support Facilities On-site R -Hydrologic Balance Y - Signs and Markers NA -Gen. Compliance With Mine Plan NA - Support Facilities Not On-site NA - Other NA - Special Categories Of Mining NA -Processing Waste R -Topsoil COMMENTS A complete inspection of the Carbon Junction Mine was conducted on November 18, 2013. The inspection included verification that repair and reclamation work within the Upper Carbon Junction drainage had been accomplished in accordance with TR-17 (and Abatement Steps 93 and 44 of CV-2013-005). Photos were taken throughout the repair work, between November 12 and 18, 2013 by Marcia Talvitie, of the Division.. Skies varied from clear to overcast throughout the course of the project, and temperatures ranged from warm to cool. AVAILABILITY OF RECORDS —Rule 5.02.4(1): • Permit records are available for review at the offices of Goff Engineering and Surveying, Inc., in Durango. A completed DRMS Availability of Records form is attached to this report. FISH and WILDLIFE—Rule 4.18: • Mule deer were sighted in the vicinity of the Carbon Junction project while the work was being conducted. HYDROLOGIC BALANCE - Rule 4.05 Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, 4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; Drainage—Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: • TR-17 was issued on November 12, 2013, and construction of the approved modifications and improvements to the Upper Carbon Junction channel were initiated that day. Equipment mobilized to the site included an excavator, a bulldozer, and a front-end loader. • Work began at the downstream end of the diversion berm. The reclamation contractor excavated the fine sediment which had accumulated recently in the sump area upstream of the sediment fan, and placed it in the eroded gully behind the berm. A small bulldozer was then used to push the berm against the hillside to the south. • In the succeeding days, the work progressed upstream, with the dozer continuing to push the berm against the hillside. The resulting slope was more gentle than what existed while the Number of Partial Inspection this Fiscal Year: 2 Number of Complete Inspections this Fiscal Year: 2 Page 2 of 8