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COLORADO -CDPS V1'ET TEST REPORT FORM -ACUTE <br />PI;RMI'I'l~l.E: Twentymile Coal Co. CDPS NO.: CO-0036684 OUTFACE: FCT-#62 <br />"I'YPE'I'ES'f: ROUTINE: XX ACCELERATED:- TEST SPECIES: C. dubia <br />TEST RESULTS: LCso >100% STATISTICAL METHOD: Probit <br />TEST TIME c& DATE: BEGIN 1200 PM 11/15/Ol END 1300 PM 11/17/01 <br />DILUTIONS (% EFFLUENT) <br />J <br />MEASUREMENTS 0% 12.5% 25% 50% 75% 100% <br />it rr, START OF TEST: 20 20 20 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 20 19 <br /># ALI VE AFTER 48 HRS: 18 20 20 17 15 16 <br /> <br /> <br />7 RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI " (mg/1) <0.2 <br /> I IARDNESS (mg/l): RECEIVING WATER: EFFLUENT: 1985 RECON WATER: 100 <br /> EFFLUENT <br />ALKALINITY <br />/I <br />RECEIVINGWRTER 385 RECON WATER <br />75 <br /> : <br />: <br />): <br />(mg : <br /> pH: INITIAL: CONTROL 8.3 100% EFFLUENT 8.0 <br /> FINAL: CONTROL 8.2 100% EFFLUENT 8.0 <br /> 'fOTAL AMMONIA AS N (mg/1): INTFIAL 100%: <l .0 FINAL 100%: <1.0 <br /> <br /> WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />J <br /> IF NO, L1ST DEVIATIONS FROM TEST SPECIFICATIONS: <br /> <br />J LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~""""` ""~"'~ <br /> COMMENTS: <br /> <br />J <br /> 4/14/99 <br />J <br /> COMMERCIAL TESTING & ENGINEERING CO. <br />F~° <br />Original Wetermerketl For YOUr Protection ~~~ <br />