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COLORADO - CDPS WET TEST REPORT FORM - ACUTE <br />1~ <br />' PERMITTEE:Pittsburgh and Midway Mining CDPS NO. CO-0032638 OUTFACE 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: P. promelas <br />~ TEST RESULTS: <br />LC50: >100 % STATISTICAL METHOD: Binomial <br />1 TEST TIME & DATE: BEGIN 10:40 AM 3 / 23 / 99 END 9:40 AM 3 / 27 / 99 <br /> <br />DILUTIONS (% <br />MEASUREMENTS CONTROL(0%) 12.5 EFFLUENT) <br />% 25 <br />% 59 % 75 <br />% <br />100 % <br />NO. @ START OF TEST: 40 40 40 40 40 40 <br />I <br />NO. LIVE AFTER 24 HRS: 40 40 40 40 40 40 <br /> <br />1 AFTER 48 HRS: 40 40 40 40 40 40 <br /> <br />AFTER 72 HRS: 40 40 ~ 40 40 39 <br /> <br />AFTER 96 HRS: 40 40 ~ 40 40 39 <br /> <br />RECEIVING WATER <br />i USED FOR DILUTION? NO TOT. RESID. CHLORINE, MG/L: 100% <0.1 <br />HARDNESS, MG/L: RECEIVING WATER 160 EFFLUENT 355 RECON WATER 105 <br />ALKALINITY, MG/L: RECEIVING WATER 100 EFFLUENT 60 RECON WATER 85 <br />PH: INITIAL - CONTROL 8.4 100% 7.7 FINAL - CONTROL 7.5 100% 7.8 <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 & Encxineering_ ANALYST Ci~^-~~-~s <br />COMMENTS: <br />7/1/93 <br />COMMERCIALTES7ING & ENGINEERING CO. <br />~~~al Watermarketl For Vour Protection ~~~ <br />