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1 COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />i <br />PERMITTEE: Pittsburgh and Midway Mining CDPS NO. CO-0032638 OUTFACE 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C. dubia <br /> <br />TEST RESULTS: LC50: X100 % STATISTICAL METHOD: Binomial <br /> <br />TEST TIME & DATE: BEGIN 11:40 AM 11 / 3 / 98 END 10:40 AM 11 / 5 / 98 <br /> <br /> <br /> DILUTIONS (% EFFLUENTI <br /> <br />MEASUREMENTS CONTROL(0%) 12.5 % 18 % 50 % 75 % 100 <br /> <br />N0. @ START OF TEST: 20 20 20 ~ 20 20 <br />1 <br />N0. LIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /> <br />AFTER 48 HRS: 19 20 20 19 20 20 <br /> <br />AFTER 72 HRS: <br />^ AFTER 96 HRS: <br />'RECEIVING WATER USED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100% <0.1 <br />HARDNESS, MG/L: RECEIVING WATER 145 EFFLUENT 2240 RECON WATER 115 <br />ALKALINITY, MG/L: RECEIVING WATER 115 EFFLUENT 120 RECON WATER 90 <br />PH: INITIAL - CONTROL 8.0 100% 8.1 FINAL - CONTROL 8.3 100% 8.2 <br />~T. AMMONIA AS N, MG/L: INITIAL - 100% <1.0 FINAL - 100% <1.0 <br />iWERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YE <br />`IF N0, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~~ <br />LABORATORY: Commercial Testing & Engineering ANALYST C/.t.w.~~~-~-~ <br />' COMMENTS: <br />~Or~g nal Watermarketl For Your Protection <br />COMMERCIALTESTING & ENGIN EEHING CO. <br />Lim <br />7/1/93 <br />