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~4^. r. <br />LTA. COMMERCIAL TESTING & ENGINEERINGCO. <br />COLORADO - CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Pittsbure & Midw~ Coal Co..CDPS NO.: CO-0032638 OUTFACE: 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C. dubia <br />TEST RESULTS LETHALITY REPRODUCTION STATISTICAL METHOD <br />Concentration with Statistical Difference >100% >100% Fisher's/Steel's Many-One <br />Pass/Fail Pass N/A <br />ICzs >100% >100% Bootstra <br />Pass/Fail Pass N/A <br />TEST TIIVIE & DATE START 1020 AM 03/25/03 END 0945 AM 04/02/03 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 28.6% 50.0% 75.0% 100% <br />Da 1 % Survival 100 100 100 100 100 100 <br />Day 2 . 100 100 100 100 100 100 <br />Day 3 100 100 100 100 100 100 <br />Day 4 100 100 100 100 100 100 <br />Da 5 100 100 100 90 100 100 <br />Day 6 100 100 90 90 100 100 <br />Day 7 100 100 90 90 100 100 <br /> <br />Mean 3 Bmod Total 21.7 20.6 20.3 19.4 21.8 20.8 <br /> <br />pH (Maximum/Minimurn) 8.9/8.1 8.7/8.1 8.7/8.2 8.7/8.0 8.7/8.0 8.7/7.8 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL Cl" (mg/1): <0.1 <br />HARDNESS (melll: REC'V WATER: EFFLUENT: 923 RECON WATER: 128 <br />ALKALINITY (mQLI: REC'V WATER: EFFLUENT: 117 RECON WATER: 78 <br />TOT. AMMONIA (mil : 1NITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: /~ ~ ~~~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: (~-c.+~' /`~`-.~ <br />