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COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMTI"fEE: Powderhorn Coal Company CDPS NO.: CO-0027146 OUTFACE: 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C. dubra <br />TEST RESULTS: LC~o: >100% <br />STATISTICAL METHOD: Probit <br />TEST TIIyIE & DATE: BEGIN 1055 AM 10!28/99 END 1110 AM 10/30/99 <br />DII.UTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 0.2% 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: 19 19 I8 18 17 13 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. CI " (mg/I): <0.1 <br />HARDNESS (mg/I): RECEIVING WATER: EFFLUENT: 90 RECON WATER: 115 <br />ALKALINITY (mg/I): RECEIVING WATER: EFFLUENT: 1130 RECON WATER: 85 <br />pH: INITIAL: CONTROL 8.1 100% EFFLUENT 8.7 <br />FINAL: CONTROL 8.3 100% EFFLUENT 8.9 <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 />~_- <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: (',L(,w. ~u.~ <br />COMMENTS: <br />4/14/99 <br />COMMERCIAL TESTING ar ENGIN EE RING CO. <br />Onginal Copy Watermaneo <br />Far Your Pro~Knon <br />F~66 <br />L16 <br />