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<br />' NARRATIVE <br /> • CLIENT <br />' i h <br /> ne, P.O. Box 591, 5174 Hig <br />Mountain Coal Company L.L.C., West Elk M <br />way 133, <br /> Somerset, CO 81434 <br />' • DATE OF REPORT <br /> <br />t January 8, 2001 <br /> • PERMTF AND SAMPLE INFORMATION <br />' NPDES permit #: CO-0038776 <br /> Type of sample: Effluent Grab <br /> Date and time of sample(s): 01/03/01 0830 <br />' Date and time oftest start: 01/04/01 1120 <br /> Dilution water: Reconstituted Laboratory Water <br />1 <br />• TEST ORGANISbIS <br />Daphnia magna <br />Fathead Minnow <br />• PROCEDURE <br />Age: <24 hrs <br />Age: 9 days <br />Acute, 48 and 96 hour bioassays as outlined in the most recent protocols specified by the <br />Water Quality Control Division of the Colorado Department of Health (1998). <br />• DISCUSSION <br />I <br />West Fork of Sylvester Gulch effluent discharge site 017 was not acutely toxic to either <br />fathead minnows or Daphnia magna survival. Therefore, Mountain Coal Company is <br />currently in compliance with the acute WET portion of its Colorado State Discharge Permit <br />for the first quarter of 2001. <br />COMMERCIAL TESTING & ENGINEERING CO. <br />F-~ LTA <br />Original Watermarked For Your Protection , <br />