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---~~_ <br />i <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />' PERMITTEE: Twentymile Coal Company CDPS NO.: CO-0036684 OUTFACE: 62-FCT <br />' TYPE TEST: ROUTINE: XX ACCELERATED: _ SPECIES: P, vrome/as <br />TEST RESULTS: LC n: >100% STATISTICAL METHOD: Binomial <br />1 <br />TEST TIME 8 DATE: BEGIN 0950 AM 06!02/04 END: 1030 AM 06/06!04 <br />' DILUTIONS (9'o EFFLUENT) <br />' MEASUREMENTS 0% 12.5% 25'/0 50% 75% 100% <br />~# START OF TEST: 40 40 40 40 40 40 <br />' ~# ALIVE AFTER 24 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 48 HRS: 40 39 39 38 39 39 <br /># ALIVE AFTER 72 HRS: 40 39 39 37 39 39 <br />' # ALIVE AFTER 96 HRS: 40 38 38 37 38 37 <br />1 RECEIVING WATER USED FOR DILUTIONS NO TOTAL RESIDUAL CI ~ (mg/l): <0.1 <br />HARDNESS (mg/l): RECEIVING WATER: EFFLUENT: 2300 RECON WATER: 140 <br />' ALKALINITY (mgll): RECEIVING WATER: EFFLUENT: 255 RECON WATER: 85 <br />pH: INITIAL: CONTROL 8.3 100% EFFLUENT 8.1 <br />' FINAL: CONTROL 8.2 100%EFFLUENT 8.3 <br />TOTAL AMh10NIA AS N (mgA): 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 />' LA60RATORY SGS MINERALS SERVICES DIVISION ANALYST: ' ~ ~ <br />COMMENTS ~" (3- /~~ <br />1 _, ,CE,'03 <br />1 <br />