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LTC- COMMERCIAL TESTING & ENGINEERING CO <br /> <br />I ' <br />I' <br /> <br />i~ <br />simce ~soa~ <br />COLORADO - CDPS W ET TEST REPORT FORM -ACUTE <br />PERMITTEE: Bear Coal Company CDPS NO.: CO-0044377 OUTFACE: 001 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: D. maprxa <br /> <br />TEST RESULTS: LCso_ >I00% STATISTICAL IVTETHOD: Binomial <br />TEST TIIvIE & DATE: BEGIN 1055 AM 09/24/02 END 1045 AM 09/26/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.7% 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 ZO 20 l9 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RES[D. Cl - (mg/I): NIA <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 270 RECON WATER: 230 <br />__ ALI{ALINITY(mg/1):RECEIVAVG WATER: EFFLUENT: 2010 RECON WATER: 185 <br />,. <br />pH: INITIAL: CONTROL 8.2 100°/O EFFLUENT 8.8 <br />FINAL: CONTROL 8.6 100% EFFLUENT 9.2 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: N/A FINAL 100%: N/A <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: (/(iC.i...; <br />-- COMMENTS: Ell7uent received discolored (dark amber}. IJaphnia maPzza used at request ofBeaz Coal <br />CompanX <br />a <br />_~ <br />