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S~_ <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentvmde Coal Company CDPS NO.: CO-0036684 OUTFACE: 62 FCT <br />TYPE TEST: ROUTINE: ACCELERATED: XX #3 SPECIES: Cenodaphnia dubia <br />TEST RESULTS: LCD: > 100 STATISTICAL METHOD: Binomial/Probit <br />TEST TIME 8 DATE: BEGIN: 1205 12106/2006 END: 1105 12/08+'2006 <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 2.G 18 20 19 <br /># ALIVE AFTER 48 HRS: 20 19 20 17 20 12 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI (mg/L) : <0.1 <br />HARDNESS (mg/L): RECEIVING WATER: EFFLUENT: 1580 RECON WATER: 100 <br />ALKALINITY (mg/L): RECEIVING WATER: EFFLUENT: 500 RECON WATER: 53 <br />pH: INITIAL: CONTROL 7.6 100% EFFLUENT 8.0 <br />FINAL: CONTROL 7.6 100% EFFLUENT 7.9 <br />TOTAL AMMONIA AS N (mg/Lj: INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF N0. LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~!t <br />LABORATORY SGS North America Inc ANALYST Stoyk , Grimmett, Nguyen <br />COMMENTS: Accelerated Acute Test -Sample #3 <br />04108103 <br />