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i~~ <br />I' <br />I' <br />I' <br />I~ <br />I~ <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: TwenNmile Coal Company CDPS NO.: CO-0036684 OUTFACE: 62-FCT <br />TYPE TEST: ROUTINE: XX ACCELERATED: _ SPECIES: P. promelas <br />TEST RESULTS: LCD: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN: 1215 PM 10/27/04 END: 1155 AM 10/31/04 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 25% 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 40 40 40 40 39 <br /># AL1VE AFTER 72 HRS: 40 40 40 40 40 39 <br /># ALIVE AFTER 96 HRS: 40 40 40 40 40 39 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI - (mg/l): <0.1 <br />HARDNESS (mgfl): RECEIVING WATER: EFFLUENT: 1355 RECON WATER: 120 <br />ALKALINITY (mg/I): RECEIVING WATER: EFFLUENT: 390 RECON WATER: 75 <br />pH: INITIAL: CONTROL 7.6 100% EFFLUENT 8.0 <br />FINAL: CONTROL 7.7 100% EFFLUENT 8.2 <br />TOTAL AMMONIA AS N (mg/I): 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 MINERALS SERVICES DIVISION <br />COMMENTS: <br />6 <br />-~ <br />ANALYST: '~a~ <br />04/08/03 <br />