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COLORADO - CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Cwrus Twentymile Coal Co. CDPS NO. CO-0036684 OUTFACE: 00] A <br />TYPE TEST: ROUTINE: XX ACCELERATED:` TEST SPECIES: C. dubia <br />TEST RESULTS LETHALITY REPRODUCTION STATISTICAL METHOD <br />Concentration with Statistical Difference 50.0% 12.5% Fisher/Steel's <br />Pass/Fail Pass N/A <br />ICs, 35.5% 38.3% $ootstra <br />Pass/Fail Pass N/A <br />TEST TIME & DATE START 1040 AM 11/]6/99 END 0950 AM 11/24/99 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 21% 50% 75% 100% <br />Da 1 % Survival 100 100 100 100 100 100 <br />Da 2 100 100 100 100 100 60 <br />Da 3 100 100 100 100 100 60 <br />Da 4 100 100 100 90 100 30 <br />Da 5 100 90 100 80 100 30 <br />Da 6 100 90 90 60 90 30 <br />Da 7 100 90 90 50 70 20 <br /> <br />Mean 3 Brood Total 10.3 6.8 6.4 3.9 4.7 0.9 <br /> <br />H aximum/Minimum 8.6/8.1 8.6/8.0 8.7/8.1 8.5/7.9 8.3/7.8 8.217.7 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI" (mg/I): <0.1 <br />HARDNESS ~mp/I): REC'V WATER: EFFLUENT: 2513 RECON WATER: 113 <br />ALICAL17dITY (mg~l}: REC'V WATER: EFFLUENT: 418 RECON WATER: 88 <br />1 <br />1 <br />TOT. AMMONIA ~Il: INITIAL 100%: 4.0 FINAL ] 00%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF N0, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />1 <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />~° <br />1 <br />4/14/99 <br />COMMERCIAL TESTING 8 ENGINEE RING CO. <br />Copy Walermerkeo <br />Yom Proiecoon <br />