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COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentymile Coal Company CDPS NO.: CO-0027154 OUTFACE: 007 <br />TYPE TEST: ROUTINE: XX ACCELERATED: SPECIES: D. magna <br />TEST RESULTS: LCD: >100% STATISTICAL METHOD: Binomial <br />TEST TIME 8 DATE: BEGIN: 1000 AM 03/28/07 END: 1000 AM 03/30/07 <br /> <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 20 20 20 <br /># ALIVE AFTER 48 HRS: 20 20 20 20 20 20 <br /># ALIVE AFTER 72 HRS: <br /># ALIVE AFTER 96 HRS: <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI " (mg/l): <0.1 <br />HARDNESS (mgll): RECEIVING WATER: EFFLUENT: 590 RECON WATER: 70 <br />ALKALINITY {mg/l): RECEIVING WATER: EFFLUENT: 225 RECON W ATER: 78 <br />pH: INITIAL: CONTROL 7.7 100% EFFLUENT 8.4 <br />FINAL: CONTROL 7.8 100% EFFLUENT 8.5 <br />TOTAL AMMONIA AS N {mgll) INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: SGS North America Inc. ANALYST: Holliday. Wehrle <br />COMMENTS: <br />