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._ ~. .. <br />Other exceedances include the 30-day average (but not 7 day maxj for both fecal <br />coliform and BOD, 5-day. Historically, we have never had exceedances in either of <br />these categories. The April 2006 numbers indicated a fecal count of 2500 and a final <br />BOD-5-day of 28, which are in compliance. These anomalies should be resolved when <br />we work with Mr. Bowman on balancing the system. <br />We appreciate CDPHE working with us on resolving this issue. Please contact me <br />directly at (970) 870-2750 if you wish fo discuss this further. <br />Very truly yours, <br />Q ~_~~ <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group, <br />Twentymile Coal Company <br />Enclosures <br />cc: DMG CWPS Permit No. CO-0042161 file <br />