Laserfiche WebLink
DISCUSSION <br />According to the Mountain Coal Company dischazge permit (CO-0038776), an acute WET test is <br />failed whenever the LCso, which represents an estimate of the effluent concentration which is <br />lethal to 50% of the test organisms in the time period prescribed by the test, is found to be less <br />than or equal to 100% effluent. <br />By this definition, the results of this bioassay indicate that effluent from outfa11017 is not <br />acutely tonic to fathead minnows or Daphnia magna survival. Therefore, Mountain Coal <br />Company is in compliance with the acute WET portion of its Colorado State Discharge Permit <br />for the third quarter of 2000. <br />COMMERCIAL TESTING & ENGINEERING CO. <br />Fi68 ~~~ <br />Original Watermarked Far Your Protection ,~.~E ~` <br />