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COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />PERMITTEE:Pittsburgh and Midwa_Y Mining CDPS NO. CO-0032638 OUTFACE 007 <br /> <br />TYPE TEST: ROUTINE: XX ACCELERATED: _ TEST SPECIES: P. promelas <br />TEST RESULTS: LC50: >100 % STATISTICAL METHOD: Probit <br />TEST TIME & DATE: BEGIN 11_40 AM 11 / 5 / 97 END 11:45 AM 11 / 9 / 97 <br /> <br /> DILUTIONS (% EFFLUENTI <br /> <br />MEASUREMENTS CONTROL(0%) 12.5 % 18 % 50 % 75 % 100 <br /> <br />NO. @ START OF TE ST: 20 20 20 20 20 20 <br /> <br />NO. 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: 19 19 20 19 20 20 <br /> <br />AFTER 96 HRS: 19 19 20 19 20 20 <br /> <br />RECEIVING WATER U SED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100 % <0.1 <br /> <br />HARDNESS, MG/L: RECEIVING WATER EFFLUENT 1940 RECON WATER 130 <br /> <br />ALKALINITY, MG/L: RECEIVING WATER EFFLUENT 345 RECON WATER 100 <br /> <br />PH: INITIAL - CONTROL 8.0 100% 7.8 FINAL - CONTROL 8.3 100% 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? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: Commercial Testing & Engineering ANALYST l~k,..: ~~•-s- ~ <br />COMMENTS: <br />COMMERCIALTESTING & ENGIN EE RING CO. <br />OrlpinN Copy WetermerkaC ~~~ <br />For Your proteclbn <br />Fd68 <br />7/1/9= <br />