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COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />PERMITTEE: Powderhorn Coal Company CDPS N0. CO-00 27146 OUTFACE 001/002 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C.dubia <br />TEST RESULTS: LC50: >100 $ STATISTICAL METHOD: Probit <br />TEST TIME & DATE: BEGIN 12:OOPM 10/ 13 /~_ END 11:20AM 10/ 15 / 98 <br /> DILUTIONS ($ EFFLUENT) <br /> <br />MEASUREMENTS CONTROL(0$) 0.2 % 25 $ 50 % 75 % 100 <br /> <br />NO. ~ START OF TEST: 20 20 20 20 20 20 <br /> <br />NO. LIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /> <br />AFTER 48 HRS: 18 17 20 1~_ 20 18 <br />AFTER 72 HRS: <br />AFTER 96 HRS: <br />RECEIVING WATER U SED 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 1095 RECON WATER 90 <br /> <br />PH: INITIAL - CONTROL 7.8 100% 7.7 FINAL - CONTROL 7.8 100% 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 />LABORATORY: Commercial Testing and Engineering ANALYST (.~ <br />COMMENTS <br />7/1/93 <br />COMMERCIALTESTING 8r ENGINEERING CO. <br />F488 Lt~ <br />Ongmal Walermarketl For Your Protection <br />