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COLORADO - CDOH W ET TEST REPORT FORM -ACUTE <br />PERMITTEE: Pittsbur€ & Midway Coal Co CDOH NO.: CO-0032638 OUTFACE: 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: P~romelas <br />TEST RESULTS: LCso >100% <br />STATISTICAL METHOD: Probit <br />TEST TIME & DATE: BEGIN 1 L40 AM 05/l 1/99 END l l LS AM OS/IS/99 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 25% 59% 75% 100% <br /># START OF TEST: 40 40 40 40 40 40 <br /># ALIVE AFTER 24 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 48 HRS: 40 40 40 40 39 39 <br /># ALIVE AFTER 72 HRS: 39 39 40 38 38 37 <br /># ALIVE AFTER 96 HRS: 38 39 40 37 38 37 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI - (mg/I): <0.1 <br />HARDNESS (mg/I): RECEIVING WATER: 125 EFFLUENT: 1535 RECON WATER: 125 <br />ALKALIMTY (mg/I):RECEIVINGWRTER: 80 EFFLUENT: 295 RECON WATER: 90 <br />pH: INITIAL: CONTROL 8.3 100% EFFLUENT 8.2 <br />FINAL: CONTROL 8.4 100% EFFLUENT 8.3 <br />TOTAL AMMONIA AS N (mg/I): IMTIAL 100%: <I.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~;,~; -c,c-`._.S' <br />COMMENTS: <br />4/14/99 <br />COMMERCIAL TESTING & ENGIN EE RING CO. <br />Ongmal cony waiermarneo <br />For Your Proi?Dion <br />F a06 <br />~~` <br />