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Gnd ~ivt.~cc,~,.. <br />;~Z K. <br />COLORADO - CDPS W ET TEST REPORT FORM -CHRONIC <br />PERMTTTEE: Twentymile Coal Co. CDPS NO. CO-0036684 OUTFACE: OOlA <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: P.promelas <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference 50% 100% Steel's/Dunnett's <br />Pass/Fail Pass N/A <br />ICzs 36.8% 34.1% Bootsira <br />Pass/Fail Pass N/A <br />TEST TIME & DATE START 1245 PM 05/22(01 END 1215 PM 05!29/01 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 21% 50% 75% 100% <br />Da 1 % Survival 100 100 100 100 100 95.0 <br />Day 2 100 100 100 100 97.5 82.5 <br />Da 3 100 100 100 100 82.5 70.0 <br />Da 4 100 100 100 82.5 72.5 60.0 <br />Da 5 100 100 95.0 77.5 62.5 47.5 <br />Da 6 100 92.5 90.0 62.5 57.5 42.5 <br />Da 7 100 92.5 90.0 62.5 57.5 42.5 <br /> <br />7 Da Mean D Wei ht 0.548 0.551 0.475 0.299 0,373 0.243 <br /> <br />H aximum/Minimum 8.5/7.9 8.5/8.0 8.4/8.1 8.4/8.1 8.2/8.1 8.2/8.0 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL Cl" (mg/1): <0.2 <br />HARDNESS (m~/1~ REC'V WATER: EFFLUENT: 2188 RECON WATER: 125 <br />ALKALINITYL~/1)•REC'VWATER EFFLUENT: 325 RECONWATER: 87 <br />TOT AMMONIA ~~)' INITIAL 100%~ <1 0 FINAL 100%: <1 0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DMSION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: ~ a _ , /~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: C,~- ~`"~"" <br />COMMERCIAL TESTING & ENGINEERING CO. <br />Onginal COpY Wa~armarked ~®~ <br />For Yaur PmWCdan t <br />•66 <br />