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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 275 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303~g~68 2003 <br />Tonya Hammond <br />J.E. Stover & Associates <br />2768 Compass Drive, Suite 101 <br />Grand Junction, CO 81506 <br />RE: Snowcap Coal Company, Inc. Roadside Mine <br />Permit No. C-1981-041 <br />3`" Qtr 2003 Hydrologic Monitoring Report <br />Dear Ms. Hammond: <br />COLORADO <br />DIVISION O F <br />MIN&RALS <br />GEOLOGY <br />ftf CLA NATIO N•NINING <br />SAFETY•SCIENCE <br />Bill Owens <br />Governor <br />Greg E. Walther <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />We have received the referenced monitoring report dated October 7, 2003. The report <br />included annual analytical data for Alluvial Wells UTL-02 and UTL-04, located at the Unit <br />Train Loadout. The wells were sampled on 8/27/03. 2002 data for Well UTL-02 included <br />an apparently erroneous total dissolved solids (TDS) value (2600 mg/I), that was <br />significantly higher than any previously reported values for the well, and out of balance with <br />the reported conductivity level. We made note of this questionable data during our review <br />of the 2002 annual hydrology report. In a letter of June 13, 2003, we concluded that the <br />reported value was likely due to analytical error, and we indicated that any request for <br />further assessment or action would be deferred pending review of the 2003 analyses. <br />The 2003 TDS level was 610 mgll. This value compares favorably with the five year <br />average for 1997 through 2001, which is 677 mg/I. The 2003 TDS value further supports <br />the conclusion that the TDS value of 2600 mg/I reported in 2002 was erroneous. <br />We are requesting no further action or assessment at this time. In the future, we would <br />request that you check for any apparently erroneous or questionable results immediately <br />upon receipt of the analyses, so that the raw data can be verified and additional sample(s) <br />can be obtained in a timely manner if warranted. <br />Please contact me if you have any questions. <br />Since el ?~ <br />Dam T. Mathews <br />Environmental Protection Specialist <br />C: Denver File <br />Office of Office of Colorado <br />• . ~ • ~ .. ~ .~ Arlive and Inarfive Minac Geological Survey <br />