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,~ <br />~~~ COMMENCIAI TFSTINO i <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMTI"I'EE: Twentymile Coal Company CDPS NO.: CO-0036684 OUTFACE: FCT-Site #62 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C. dubia <br />TEST RESULTS: LCw: 43.7% `STATISTICAL METHOD: Pmbit <br />TEST TIME & DATE: BEGIN 1120 AM . .01/29/03... END 1050 AM 01/31/03 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0°Jo 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 14 15 <br /># ALIVE AFTER 48 HRS: 20 20 18 10 0 0 <br /> <br /> <br />RECEIVING WATER USED FOR DII,UTION? NO ~ TOTAL RESID. Cl - (mg/1): <0.1 <br />HARDNESS (mg/l): RECEIVING WATER: EFFLUENT: 2135 RECON WATER: 125 <br />ALKALINITY (mg/1):RECETVING WATER: EFFLUENT: 505 RECON WATER: 95 <br />pH: INITIAL: CONTROL 8.3 100% EFFLUENT 7.8 <br />FINAL: CONTROL 8.4 100% EFFLUENT 8.2 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />a, <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~~ // ~~' <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: C/~(.w~ Ju-~~ <br />COMMENTS: <br />4/14199 <br /> <br />