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<br />Thy fe~Cr~ft G out <br />An Environmental Services Company <br />RECEIVED <br />NOV 0 3 2003 <br />Division of Minerals 8 Geology <br />August 18, 2003 <br />Mr. Henry Barbe <br />Mountain Coal Company <br />P.O. Box 591 <br />Somerset, Colorado 81434 <br />Dear Henry: <br />I am pleased to submit the results of the acute biomonitoring tests performed in July on <br />the West Elk Mine 017 discharge. No LC50 concentration was created in either test with <br />either test species. Therefore the effluent passed the whole effluent toxicity test <br />guidelines. Survival was good in both tests. <br />Please call if you have any questions. <br />Sincerely, <br />/I ' <br />K .C r <br />Laboratory Manager <br />enclosures: Report, Invoice <br />1341 Cannon Street • Louisville, Colorado 80027 • 303-661-9324 • Fax 303-661-9325 <br />