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COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />PERMITTEE: Powderhorn Coal Company CDPS N0. CO-00 27146 OUTFACE 004 <br /> <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: P.promelas <br />TEST RESULTS: LC50: >100 % STATISTICAL METHOD: Binomial <br /> <br />TEST TIME & DATE: BEGIN 11:30AM 10/ 13 / 98 END 10:30AM 10/ 17 / 98 <br /> <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS CONTROL(0%) 0.2 % 25 % 50 % 75 % 100 <br />NO. ~ START OF TEST: 40 40 40 40 40 40 <br />NO. LIVE AFTER 24 HRS: 40 40 40 40 40 40 <br />AFTER 48 HRS: 40 40 40 40 40 40 <br />AFTER 72 HRS: 40 39 40 40 40 3~ <br />AFTER 96 HRS: 40 39 40 40 39 38 <br />RECEIVING WATER USED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100% <0.1 <br />HARDNESS, MG/L: RECEIVING WATER 245 EFFLUENT 80 RECON WATER 110 <br />ALKALINITY, MG/L: RECEIVING WATER 155 EFFLUENT 900 RECON WATER 90 <br />PH: INITIAL - CONTROL 7.8 100% 8.4 FINAL - CONTROL 8.2 100% 8.8 <br />T. AMMONIA AS N, MG/L. INITIAL - 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 /> <br /> <br />LABORATORY: Commercial Testing and Engineerinq ANALYST ~~-~~ <br />COMMENTS <br /> <br /> <br /> 7/1/93 <br />COMMEHCIALTESTINO & ENGIN EEFIING CO . <br />F~88 ~~~ <br />Original Watermarked For Your Protection <br />