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Y <br />White River Nat~colite .Minerals' <br />,Pacu~f- 935 <br />~ !6'O.00 <br />February 10, 2003 -~Z _ ad / <br />Mr. Gregg Squire, Environmental Protection Specialist RECEIVED <br />Division of Minerals and Geology <br />Department of Natural Resources FEB 1 3 2003 '~ <br />1313 Sherman Street, Room 215 <br />Denver, C~ 80203 Division of Minerals and Geology <br />Subject: Technical Revision 20 to Add Subsidence We112M-TDR <br />White River Nahcolite (WRN), Permit Number M-1983-194 '~ <br />Dear Mr. Squire: <br />Enclosed please find a check from IMC Chemicals (WRN) in the amount of <br />$150.00, to cover a technical revision for permit Number M-1983-194, see WRN <br />2002 Annual Report for disturbed area map illustrating location of 2M-TDR. This <br />submittal is to add a new drill pad of 150' X 150'. Plans to minimise disturbance <br />include removal of the brush and trees only, with topsoil removed only for mud pit <br />and drill rig. No cut and fill will be performed for subsidence we112M-TDR. See <br />the yellow highlighted area on attached map for location. Total proposed disturbed <br />acres for we112M-TDR would equa10.5 acres, increasing the total disturbed area to <br />71.9. Permitted and bonded disturbed acreage for WRN is 73 acres. This <br />subsidence well is required by the EPA and BLM to assess possible caving and <br />subsidence. <br />If there are any questions, please contact me or plant manager Kyle Barbot. <br />Sincerely, <br />Ed Baker, REM <br />EHS Manager <br />cc: BLM-Meeker <br />White River Nahcolite Minerals, Limited Llabllity Company <br />3200 CO. Rd. 31, R'rfle, CO 81650 (tel) 970-878-3674 (fax) 970-878-5866 <br />