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1 <br />' COLORADO-COPS W~:'1 ir.oa ..,._ •''TT'`"' <br />1 PERMITTEE: Powderhorn Coal Company COPS NO.: CO-0027146 OUTFACE: 001/002 <br />TYPE TEST: ROUTINE: XX ACCELERATID:_ TEST SPECIES: P. Dromelas <br />1 TEST RESULTS: LCso: >100% STATTSTICAE METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1205 PM 11/28/00 END 1345 PM 12/07J00 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0•/. 0.2•/. 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 HR.S: 40 40 40 40 40 40 <br /># ALIVE AFTER 72 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 96 HRS: 40 40 40 40 40 40 <br />RECEIVING WATER USEb FOR DILUTION? NO TOTAL RESID. Cl ' (mg/l): <0.1 <br />HARDNESS (mg/I): RECEIVING WATER EFFLUENT: 80 RECON WATER 150 <br />' ALKALINITY (mg/l):RECEIVING WATER EFFLUENT: 1135 RECON WATER: 90 <br />' pH: INITIAL: CONTROL 8.4 100% EFFLUENT 7.7 <br />FINAL: CONTROL 8.7 100% EFFLUENT' 8.9 <br />TOTAL AMMONIA AS N (mg/1): 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: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />COMMENTS: <br />4/14/99 <br />COMMENCIAL TESTING $ <br />CO. <br />IF~•• ~~! <br />~Jriginal Walertnarketl For Vour Protection G <br />____.__ _ _ _ ~ ~ s~+ct a. <br />