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COLORADO -CDPS WET TEST REPORT FORK[ -ACUTE <br />PERMITTEE: Powderhorrt Coal Compank CDPS NO.: CO-0027146 OUTFACE: 004 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: C. dubia <br />TEST RESULTS: LCso: >100% <br />STATISTICAL METHOD: Probit <br />TEST TIME & DATE: BEGIN 0940 AM 08/10/99 END 0810 AM 08/12/99 <br />DILUTIONS (% 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: 20 20 20 20 18 16 <br /> <br /> <br />RECEIVING WATER USED FOR DII,UTION? NO TOTAL RESID. CI ~ (mg/I): <0. l <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 100 RECON WATER: ] 10 <br />ALKAI,IMTY (mg/1):RECEIVING WATER: EFFLUENT: 960 RECON WATER: 85 <br />pH: INITIAL: CONTROL 8.3 100% EFFLUENT 8.8 <br />FINAL: CONTROL 8.2 100% EFFLUENT 9.0 <br />TOTAL AMMONIA AS N (mF/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: ~,Lc,~,.. ~.~ <br />COMMENTS: <br />4/ 14/99 <br />COM MERCIAL TESTING & ENGIN EE RING CO. <br />Onginai COOy waiermarxea <br />For your Prmeaion <br />F<66 <br />LTA <br />J <br />