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<br />M <br />I~ <br />M <br /> <br /> <br />A <br />~.~ <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Powderhorn Coal Company CDPS NO.: CO-0027146 OUTFACE: 001/002 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: C. cfubia <br />TEST RESULTS: LCso: >100% STATISTICAL METHOD: Binomial <br />TEST TIIvIE & DATE: BEGIN 1145 AM 04/17/01 END 1050 AM 04/19/01 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 0.2% 25% 50% 75% 100% <br /># START OF TEST: 20 20 20 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /># ALIVE AFTER 48 HRS: 20 20 20 20 20 20 <br /> <br /> <br /> RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI' (mg/1): <0.2 <br /> HARDNESS (mg/I): RECEIVING WATER: EFFLUENT: 35 RECON WATER: 110 <br /> ALKALINITY (mg/l):RECEIVING WATER: EFFLUENT: 1050 RECON WATER: 75 <br /> pH: INITIAL: CONTROL 8.5 100% EFFLUENT 7.7 <br /> FINAL: CONTROL 8.4 100% EFFLUENT 9.1 <br />TOTAL AMMONIA AS N (mg/I): INITIAL 100%:.451 FINAL 100%: .437 <br />WERE ALL TEST CONDITIONS LEI CONFORMr11~1CE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~, <br />LABORATORY: COMMERCIAL TESTI~i IG & ENGINEERING A.~IAL.YST: ~'~^^ <br />COMMENTS: <br />4/14/99 <br />COMMERCIAL TE STING & ENGINEERING CO. <br />Wa[ermartaa Fir Vour Protection ~~~ <br />