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COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERM]TTEE: Twentymile Coal Co. CDPS NO. CO-0027154 OUTFACE: 005 <br />TYPE TEST: ROUTINE: XY. ACCELERATED:- TEST SPECIES: P.promelas <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference >100% >100% Steel's/Dunnett's <br />Pass/Fail Pass N/A <br />ICzs >I00% >]00% Bootstra <br />PasslFail Pass N/A <br />TEST TIIvIE & DATE START 1445 PM 08/2]/01 END 1300 PM 08/28/01 <br />DILUTION (% EFFLUENT) <br /> <br />MEASUREMENTS CONTROL 12.5% 25% 50% 75% 100% <br />Da I %Survival 100 ]00 100 100 100 100 <br />Da 2 100 100 100 100 ]00 100 <br />Da 3 100 100 100 100 100 100 <br />Da 4 100 100 100 100 100 100 <br />Da 5 100 100 100 ] 00 100 97.5 <br />Da 6 100 100 100 97.5 97.5 95 <br />Da 7 100 100 100 97.5 97.5 95 <br /> <br />7 Da Mean D Wei ht 0.639 0.740 0.719 0.611 0.642 0.627 <br /> <br />H (Maximum/Minimum 8.5/7.9 8.5/8.1 8.5/8.2 8.6/8.4 8.6/8.3 8.7/8.3 <br />RECEIVING WATER USED FOR DII,UTION? NO TOTAL RESIDUAL Cl~ (mgJl): <0.2 <br />HARDNESS (m€Ll): REC'V WATER: EFFLUENT: 1030 RECON WATER: 117 <br />ALKALINITY (m¢,/I): REC'V WATER: EFFLUENT: 445 RECON WATER 88 <br />TOT AMMONIA (mp/1): INITIAL ]00%: <1.0 FINAL ]00%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />~ / ~--~. <br />~~ ~. <br />4/14/99 <br />COMMERCIAL TESTING & ENGINEERING CO. <br />Ori°Inel Copy welermenetl <br />For Your Protection <br />[~aF <br />