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L1E. COMMERCIAL TESTING & ENGINEERING CO. <br />~~~ ~ COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Beaz Coal Company CDPS NO.: CO-0044377 OUTFACE: 001 <br />TYPE TEST: ROLITIlVE: XX ACCELERATED: TEST SPECIES:D. magna <br />TEST RESULTS: LC;o: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1005 AM 11/19/02 END 1020 AM 11/21/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.7% 25% 50% 75% 100% <br /># START OF TEST: 20 20 ZO 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /># ALIVE AFTER 48 HRS: 20 20 20 20 20 20 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl " (mg/1): N/A <br />HARDNESS (mgll): RECEIVING WATER: EFFLUENT: 540 RECON WATER: 220 <br />ALKALINITY (mg/1): RECEIVING WATER: EFFLUENT: 1810 RECON WATER: 165 <br />pH: INITIAL: CONTROL 8.6 100% EFFLUENT 8.7 <br />FINAL: CONTROL 8.6 100% EFFLUENT 9.1 <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: COM[yIERCIAL TESTING & ENGINEERING ANALYST: '~ ~G <br />1`.' . >~- <br />CON11ti1ENTS: Effluent received discolored (dark amber. Daphnia maQracr used at request ofBear Coal <br />CompanX <br />