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AMERICAN <br />SODA, L.L.P. <br />Celina Akin <br />Environmental Engineer <br />2777 County Road 275 <br />Parachute, CO Si635 <br />Telephone (970) 285-6500 <br />Facsimile (970) 285-6393 <br />6~f~~'L 1e;9~® <br />Monday, October 18, 2004 <br />OCT 2 '-12004 <br />givisian of ~ir.~:;' & Geology <br />Ms. Erica Crosby <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street, room 215 <br />Denver, CO 80203 <br />Dear Erica: <br />ENV234.04 <br />As you know, American Soda has been working under the guidance of the Division to modify the <br />ground water monitoring program relevant to Permit No. M-1999-002 for our solution mining well field <br />and production plant. Our common objective is a monitoring program that will accurately characterize <br />the various aquifers in relation to the Yankee Gulch Project and provide data that insures the protection <br />of ground water. <br />The monitoring system is nearly as complex as the biological system that it is designed to monitor. <br />Five years of monthly data have been gathered and provided for review. As with any program of this <br />nature, there are a number of variables and circumstances that must be understood and considered to <br />formulate the best possible plan. After written correspondence with the Division, and numerous <br />telephone conversations it is apparent that additional time will be beneficial to the understanding of all <br />of the data and the proposed changes. Please extend the timeframe of the Division's review of TR-#4 <br />and subsequent clarification correspondence to Monday, November 1, 2004. <br />Please don't hesitate to contact me with any additional questions or comments as your review <br />progresses. I can be reached at (970) 285-0406. <br />Sincerely, <br />~~~~ ~~~ <br />Celina Akin <br />Environmental Engineer <br />Permit#:_ QI(-~~-Q~a __ Confidental?: Iy <br />Class: Type-Seq.: <br />From: To: ~'y)'~(~ <br />Doc. Name: i~it ail Tlo.~~,'n,. A,.~{,. ~- <br />Doc. Date (if no date stamp) <br />Natural Sodium Products For A Cleaner Environment <br />