Laserfiche WebLink
LTA COMMEPCIALTESTING & ENGINEENINGCO. <br />NARRATIVE ~ <br />• CLIENT <br />Trapper Mining, Inc. Craig Mine, P.O. Box 187, Craig, CO 81626-0187 <br />• DATE OF REPORT <br />Mazch 3 ] , 2003 <br />• PERMIT A1VD SAMPLE INFORMATION <br />NPDES permit #: <br />Type of sample: <br />Date and time of sample(s): <br />Date and time of test start: <br />Dilution water: <br />Receiving temperature(s): <br />LJ <br />CO-00321]5 <br />Effluent Grab <br />03/24/03 N/A <br />03/25/03 1200 <br />Reconstituted Laboratory Water <br />2.5 ° C <br />• TEST ORGANISMS <br />Ceriodaphnia dubia <br />Fathead Minnow <br />Age: <24 hrs <br />Age: 12 days <br />• <br />• PROCEDURE <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 />cu <br />Trapper Mining's Craig Mine outfall 023 effluent was not acutely toxic to either species <br />tested. Therefore, Trapper Mining, Inc. is currently in compliance with the acute WET <br />portion of its Colorado State Discharge Pemvt for the first quaner of 2003. <br /> <br />