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~~~ COM MEROIAL TESTING & ENGINEERING CO. <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Pittsburg & Midway Coal Co CDPS NO.: CO-0032638 OUTFACE: 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: ~romelas <br />TEST RESULTS: LCso: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1045 AM 11!05!02 END 1130 AM 11/09/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0°/R 12.5°/G 25% 50% 75°l0 100% <br /># c START OF TEST: 40 40 40 40 40 40 <br /># ALIVE AFTER 24 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 48 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 72 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 96 HRS: 40 40 40 40 40 40 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI' (mg/1): <0.1 <br />HARDNESS (mgll): RECEIVING WATER: EFFLUENT: 1830 RECON WATER: 135 <br />ALKALINITY (mg/1): RECEIVING WATER: EFFLUENT: 45 RECON WATER: 85 <br />pH: INITIAL: CONTROL 8.4 100% EFFLUENT 9.4 <br />FINAL: CONTROL 8.3 100%EFFLUENT 8.1 <br />TOTAL AMMONIA AS N (md/l): IlVITIAL 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 & ENGINEERING ANALYST: (_/LC~c.~,~ ./~---•-~ <br />COMMENTS: <br />4/14/99 <br />