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;~ <br />~- <br />' COLORADO - CDPS WET TEST REPORT FORA? -ACUTE <br />PERIvII1TEE: Mountain Coal Company CDPS NO.: CO-0038776 OUTFACE: 013 <br />~ TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: D. mama <br />TEST RESULTS: LCso: >100% STATISTICAL METHOD: Binomial <br />TEST TIIvIE & DATE: BEGIN 1150 AM 05/02/00 END 1055 AM 05/04/00 <br /> <br />r <br />~. <br />:e, <br />7~ <br />i <br />ti~ <br />DII,UTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.9% 25% 50% 75% 100°/a <br /># START OF TEST: 20 20 20 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /># ALIVE AFTER 48 HRS: 20 20 20 20 20 20 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI " (mg/1): <0. ] <br />HARDNESS (mg/I): RECEIVING WATER: EFFLUENT: 50 RECON WATER: 210 <br />ALKALINITY (mg/I): RECEIVING WATER: EFFLUENT: 1685 RECON WATER: I55 <br />pH: INITIAL: CONTROL 8.4 100% EFFLUENT 8.4 <br />FINAL: CONTROL 8.5 100% EFFLUENT 9.2 <br />TOTAL AMMONIA AS N (mg/I): INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DMSION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: C~~-~ ~~ <br />COMMENTS: <br />4/14/99 <br />COMMERCIAL TESTING & ENGIN EEO ING CO. <br />F4B° ~~~ <br />-Original Walermarketl For Your Protection <br />