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~~l- X977 SOS C s e~ Banks and Gesso, LLC 720 Kipling St.,Suite117 ^^ Lakewood, Colorado 80215 {303)274-4277 RECEIVED Fax (303) 274-8329 !/ www. banksandgesso.com cco ^ R ~nnB September 26, 2006 Division of Reclamation, Mining and Safety Erica Crosby Environmental Protection Specialist Division of Reclamation, Mining and Safety r_.nleradc. Department of Natural Reso;rrces -- - - - - - - 1313 Sherman Street, Room 215 Denver, Colorado 80203 Subject: ~tober 4`h Meeting Between DRMS and Cemex, C-Pit Dear Erica: ~~ ~~~ This letter confirms our scheduled meeting on Wednesday, October 4, 2006 at 10 a.m. at.DRMS offices. In attendance on our part will be: - Steve Goodrich, Plant Manager, Cemex -~ ,.; . :. Monica Sowders, Environmental Manager, Cemex - Alan Notary, P.E., Brown and Caidweil - Paul Banks, Banks and Gesso, LLC The purpose of the meeting is to introduce the new Cemex people and provide a progress report on the tasks related to C-Pit. We would like to suggest another meeting in early November, to present the detailed results of C-Pit pumping, water quality monitoring and the plans for the future, which at this time are not yet finalized. You had asked me in our phone conversation if there was any new data we could submit prior to October 4`h. There is. Attached is a graph of water surface elevation vs. time showing a 7-foot decline in the C-Pit water surface due to the consumptive use pumping. The pumping ceased in early August because of some process problems in the spray tower resulting from the chemistry of C-Pit water. Subsequently, pumping was restarted but the pump failed. Cemex is working on these matters and pumping has or will shortly resume. We will report. more on this at the October 4~' meeting. In addition to lowering the water level in C-Pit by pumping to the spray tovver, Cemex has decreased the area of the water surface by regrading and filling in the pool at the