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Savage and Savage Environmental practical solutions for environmental issues 4610 Haystack Drive 9706748080 telephone Windsor, Colorado 80550 9706748088 facsimile savageandsavage~earth link.net July 16, 2007 ~Ilr. Tom Kaldenbach, Environmental Protection Specialist /Colorado Division of Minerals and Geology 1313 Sherman Street, Room 215 Denver, Colorado 80203 RECEI~JED JUL 171007 Division of Reclamation, Mining and Safety Re: Cazbon Junction Mine (CDMG file C-92-080) maintenance items noted in the June 2007 CDRMS inspection Deaz Tom: In your last inspection report (June 2007), several maintenance items were noted; erosion at the north edge of the North Pit, rills on the North Pit, the weathering of the mine LD. sign at the entrance gate, and the lack of an annual engineer's certification for the sediment ponds. During my quarterly visit on July 12-13, 2007 I repaired the mine LD. sign (photo attached) and met with Bryan Duff of Goff Engineering who will provide the engineer's certification shortly. I also met with John Mares of C&J Gravel and we walked the north end of the North Pit to assess the erosion you noted and devise a plan for repair. C&J is going to walk an excavator to the erosion azea and excavate a "U" shaped drop channel, then armor the channel with a base of filter rock overlain with large riprap. They aze also going to install lengths of straw logs within the rills on the North Pit. This work should be complete within the next two-three weeks. I also assessed revegetation growth at the site and am particulazly pleased with the growth of the perennial seed mix. Of note were significant contributions by western, bluebunch, slender, and intermediate wheatgrasses, mountain brome, Indian ricegrass, and sanfoin. I estimated the average live vegetation cover from locations at the equipment yazd, the PRSA, North Pit haul road and North Pit to be 50% with another 30% cover contribution by litter, composed of mulch and last yeaz's vegetation growth (photo of North Pit Haul Road slope attached). Other than the rills on the North Pit which appeaz to have stabilized, there appears to be no significant sediment transport or erosion on the Carbon Junction Mine reclamation. Based on these observations, I would like to pursue a concurrence from the Division that would acknowledge that the sediment control system is no longer needed. To that end, I would like to meet to discuss the demonstration that would satisfy the Division on this point.