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~~ COMMERCIAL TESTING L ENGINEERING CO. <br />. ~1~ <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMTI'TEE: Twentymile Coal Company CDPS NO.: CO-0027] 54 OUTFACE: 001_ Pond A <br />TYPE TEST: ROUTINE: XX ACCELERATED: _ TEST SPECIES: D. magna <br />1 TEST RESULTS: LCso >100% STATISTICAL METHOD: Binomial <br />~; <br />TEST TIME & DATE: BEGIN 0800 AM 07/19/02 END 0950 AM 07/21/02 <br />DILUTIONS (% EFFLUENT) <br />~; <br />°I <br />ii <br />^~ <br />MEASUREMENTS 0% 12.5% 25% 50% 75% 100% <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 19 20 20 20 20 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? <br />HARDNESS (mg/1): RECEIVING WATER: <br />ALKALINITY (mg/I):RECEIVING WATER: <br />- pH: INITIAL: CONTROL <br />FINAL: CONTROL <br />pro TOTAL RESID. cl - (mg/1): <o.l <br />EFFLUENT: 2360 RECON WATER 200 <br />EFFLUENT: 200 RECON WATER 150 <br />8.4 l00% EFFLUENT 8.0 <br />8.5 100% EFFLUENT 8.5 <br />-~ TOTAL AMMONIA AS N (mg/1): INTPIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />-., <br />,. IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: /~ ~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~ ~ <br />COMMENTS: <br />'j 4/14/99 <br /> <br />_~ <br />i <br />,: <br />F.526 <br />