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i~ <br /> <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: P. promelas <br />PERMITTEE: Powderhorn Coal Company CDPS NO.: CO-0027146 OUTFACE: 001/002 <br /> <br />M <br />I, r ' <br /> <br /> <br />TEST RESULTS: LCso: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1130 AM 04/17/01 END 1140 AM 04/21/01 <br />COLORADO - CDPS W ET TEST REPORT FORM -ACUTE <br />DII,UTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 0.2% 25% 50% 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 40 40 <br /># ALIVE AFTER 72 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 96 HRS: 40 40 40 40 40 40 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl " (mg/1): <0.2 <br />HARDNESS (mail): 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 8.2 100% EFFLUENT 8.9 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%:.451 FINAL 100%:.437 <br />WERE ALL TEST CONDITIONS Ii 1 CONFORMANCE WITH DMSION GUIDELINES.' YES <br />1F NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />COMMENTS: <br /> <br />4/ 14/99 <br />COMMERCIAL TESTING & ENGINEERING CO. <br />~F-~ _ LTA <br />Onginal Watermarka° -or '/cur Protection _ ~, <br />1 <br />