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<br />COLORADO - CDPS WET TEST REPORT FORM -CHRONIC <br />PERM]TTEE: Twentymile Coal Co CDPS NO. CO-0027154 OUTFACE: 00] <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: P.promelas <br />TEST RESULTS LETHALITY GROWTA STATISTICAL METHOD <br />Concentration with Statistical Difference 100'% 50% Steel's/Dunnett's <br />Pass/Fail Fail N/A <br />1Ci. 25.0% 20.3% Bootstra <br />Pass/Fail Fail N/A <br />TEST TIME & DATE START l 125 AM 08/07/01 END 0955 AM 08/14/0] <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12S% 25% 50% 75% 100% <br />Da 1 % Survival 100 100 100 100 100 95.0 <br />Da 2 100 100 100 100 100 90.0 <br />Da 3 100 100 100 100 77.5 70.0 <br />Da 4 100 100 100 100 77.5 70.0 <br />Da 5 100 92.5 87.5 50.0 47.5 55.0 <br />Da 6 100 90.0 82.5 50.0 42.5 50.0 <br />Da 7 100 90.0 75.0 50.0 40.0 50.0 <br /> <br />7 Da Mean D Wei ht 0.777 0.663 0.535 0.389 0.314 0.367 <br /> <br />H Maximum/Minimum 8.5/7.8 8.418.1 8.4/8.2 8.5/7.9 8.3/7.8 8.1/7.7 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL Cl" (mgll): <0.1 <br />HARDNESS (mp.~l): REC'V WATER: EFFLUENT: 2208 RECON WATER: 117 <br />ALKALINITY Lp~l): REC'V WATER: EFFLUENT: 263 RECON WATER 88 <br />TOT. AMMONIA (mil: INITIAL 100%: <1.0 FINAL 100%: <].0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO. L]ST DEVIATIONS FROM TEST SPECIFICATIONS: <br />T~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~/~,~ ~' it~..'- <br />COMMERCIAL TESTING d ENGINEERING CO. <br />4/14/00 <br />=-C66 ~~~ <br />Jrigin.l Watermarketl For Vour Pr°letlion <br />