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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />Steve Linse, P.E. <br />WWC Engineering <br />611 Skyline Road <br />Laramie, WY 82070 <br />June 17, 2002 <br />Re: Edna Mine (Permit No. C-80-001) <br />2002 Annual Hydrology Report <br />Dear Mc Linse: <br />The Division has reviewed the above-referenced report. The report was thorough <br />and well-organized. The attached review checklist summarizes the results of the <br />review. <br />Please verify the accuracy of the data on the last page of the report for ground <br />water monitoring site TCS-1 on 5/8/01. Standard conductivity is only 880 <br />µmhos/cm, but TDS is 4440 mg/l. Are the sulfate, calcium, and magnesium <br />values correctly reported ? <br />Sincerely, <br />/~~ <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />D !VISION O F <br />MINERALS <br />GEOLOGY <br />RECLAMATION <br />MINING•SAFETY <br />Rill Owens <br />Governor <br />Greg E Watcher <br />Executive Director <br />Ronald W. Cottony <br />Acting Division Director <br />cc: Dan Hernandez, CDMG <br />