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COLORADO - CDPS WET TEST REPORT PORM - ACUTE <br />PERMITTEE: Powderhorn Coal Companv CDPS N0. CO-00 27146 OUTFACE 001/002 <br />I <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: P.Dromelas <br /> <br />TEST RESULTS: LC50: >100 % STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 11:45AM ~ 7 / 98 END 10:55AM 7 / 11 / 98 <br /> DILUTIONS (% EFFLUENT) <br /> <br />MEASUREMENTS CONTROL(0%) 0.2 % 25 % 50 % 75 % 100 % <br /> <br />N0. ~ START OF TE ST: 20 20 20 20 20 20 <br /> <br />NO <br />LIVE AFTER 24 HRS: 20 20 20 20 20 20 <br />. <br />AFTER 48 HRS: 20 20 20 20 20 20 <br /> <br />AFTER 72 HRS: 20 20 20 20 20 20 <br /> <br />AFTER 96 HRS: 20 20 20 20 20 20 <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100% <0.1 <br /> <br />MG/L: <br />HARDNESS RECEIVING WATER EFFLUENT 110 RECON WATER 115 <br />, <br />MG/L: <br />ALKALINITY RECEIVING WATER EFFLUENT 1050 RECON WATER 90 <br />, <br />PH: INITIAL - CONTROL 8.0 100% 7.8 FINAL - CONTROL 7.7 100% 8.3 <br /> <br />T. AMMONIA AS N, MG/L: INITIAL - 10 0% <1.0 FINAL - 100% <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? <br />IF N0, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: Commercial Testing and Engineering ANALYST Cr.Gw..• <br />COMMENTS <br />'~fb <br />'nq mal YJa term ]rn ea For "rcr ?•a~ac:wn <br />COMMERCIAL TESTING & ENOIN EERINO CO. <br />/~~ a <br />.~ L~~.'.':'1 <br />YES <br />7/1/93 <br />