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~, <br />~: . <br />~~ ; <br />~, <br />': ~ ~ COMMfpCIAL TEETINO L ENOINEERINO CO. <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITIBE: Twentymile Coal Co. CDPS NO.: CO-0042161 OUTFACE: FCBH-] ] 5 <br />TYPE TEST: ROUTINE: ACCELERATED: XX TEST SPECIES: D. maQeia <br />TEST RESULTS: LCD: 44.7°/O STATISTICAL METHOD: S~eatman Karber <br />TEST TIME & DATE: BEGIN 1125 AM 02/18/03 END i 120 AM 03/20/03 <br />DILUTIONS (% EFFLUENT) <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 19 19 17 <br /># ALIVE AFTER 48 HRS: 20 20 20 6 4: 0 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl " (mg/1): <0.1 <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 660 RECON WATER: 203 <br />ALKALIlVTI'Y (mg/1):RECEPJING WATER: EFFLUENT: 920 RECON WATER: 165 <br />pH: INITIAL: CONTROL 8.5 100% EFFLUENT 8.3 <br />FINAL: CONTROL 8.6 100% EFFLUENT 8.9 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: =r3.0 FINAL ~00%: a3.0 <br />WERE ALL TEST CONDTfIONS IN CONFORMANCE WITH DIVLSION GUIDELINES? YES <br />IF NO, LEST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />COMMENTS: Accelerated test #1 <br />Gli,.~. <br />4/14/99 <br />