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<br />~~~~ <br />s~ oE~ Seneca Coal Company <br />June 13, 2001 <br />Colorado Department of Health <br />WQCD-PE-B2 <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />Re: WET Acute Accelerated Testa for Discharge Point 016, <br />Permit CO-0000221 <br />Dear Sir or Madam, <br />In a letter dated June 1, 2001, I notified the Department about <br />an acute WET test failure (Ceriodaphnia) at Point 016. Two <br />accelerated test were performed on samples collected May 30 and <br />June 4. Both of those tests have passed with no toxicity <br />observed. Therefore, the toxicity episode is considered to be <br />ended. The cause of the original failure on the May 22 sample is <br />still unknown. I may be reached at 970-276-5109 for any <br />questions you may have. <br />Sincerely, <br />~~~~~~~ <br />Dennis Jones <br />Hydrologist I <br />Seneca Coal Company P.O. Drawer D 'Hayden, Colorado 81639 <br />Telephone (970) 276-3707 FAX (970) 276-3014 <br />