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1 COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />PERMITTEE: Pittsburgh and Midway Mining CDPS N0. CO-0032638 OUTFACE 007 <br />1TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: C. dubia <br />TEST RESULTS: LC50: >100 % STATISTICAL METHOD: Probit <br />TIME & DATE: BEGIN 10:30 AM 7 / 29 / 98 END 9:45 AM 7 / 31 / 98 <br />DILUTIONS (% EFFLUENT) <br />ASUREMENTS CONTROL(0%) 12.5 % 25 % 59 % 75 % 100 <br />N0. @ START OF TEST: 20 20 20 20 20 20 <br />~0. LIVE AFTER 24 HRS: 20 20 19 20 20 20 <br />AFTER 48 HRS: 19 18 <br />' 19 19 19 15 <br />' <br />AFTER 72 HRS: <br /> <br />,' AFTER 96 HRS: <br />RECEIVING WATER USED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100 % <0.1 <br />' <br />HARDNESS, MG/L: RECEIVING WATER 170 EFFLUENT 2045 RECON WATER 110 <br />~KALINITY, MG/L: RECEIVING WATER 130 EFFLUENT 275 RECON WATER 90 <br />PH: INITIAL - CONTROL 8.3 100% 7.6 FINAL - CONTROL 8.3 100% 8.3 <br />x <br />. AMMONIA AS N, MG/L: INITIAL - 10 <br />0$ <1.0 <br />FINAL - 100% <br /><1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />~ <br />F N0, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: Coirrtnercial Testing & Engineering ANALYST~~y~ ~y C~ ? <br />x <br />COMMENTS: <br />e <br />r <br />COMMER CIALTESTING & ENGINEERING CO. <br />7/1/93 <br />F~ L1~ <br />~MO~nal Watermarked For Your Protection ; <br />