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<br />LTA COMMERCIAL TESTING & ENGINEERING CO. <br />since izoe~ <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Bear Coal Company CDPS NO.: CO-0044377 OUTFACE: 001 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES:D. magna <br />TEST RESULTS: LCSO: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1245 PM 03/04/03 END 1215 PM 03/06/03 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.7% 25% 50% 75% 100% <br /># @ START OF TEST: 20 20 20 20 20 20 <br /># ACNE AFTER 24 HRS: 20 20 20 20 20 20 <br />~# ALIVE AFTER 48 HRS: 20 20 20 19 20 20 <br />RECENING WATER USED FOR DILUTION? NO TOTAL RESID. Cl ' (mg/1): N/A <br />HARDNESS (mg/]): RECENING WATER: EFFLUENT: 400 RECON WATER: 210 <br />ALKALINITY (mg/1):RECENING WATER: EFFLUENT: 1250 RECON WATER: 165 <br />pH: INITIAL: CONTROL 8.5 100% EFFLUENT 8.7 <br />FINAL: CONTROL 8.4 100% EFFLUENT 9.0 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: N!A FINAL 100°f°: N1A <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DNISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~~ ='~-~------~_ <br />COMMENTS: Effluent received discolored (dark amber). Daphnia magna used at request of Bear Coal <br />Company. <br />