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SeaCrest Project Number: 399208 <br />COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Seneca Coal Company CDPS No: CO-0000221 OUTFACE: 008 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Ceriodaphnla du6ia IWC: 9.3% <br />TEST RESULTS: LETHALITY GROWTH REPRODUCTION <br />Conc. With Stet <br />Difference >100% NA 12.5%, 50%, 100% <br /> PASS PASS/FAIL PASS <br />IC25 >700% NA 32.7% <br /> PASS PASSIFAIL PASS <br />STAT. METHOD USED: Statistical Diff.: Dunnett's ANOVA IC25: ICp <br />DATE: START: 14:44 AM/PM 6 /. 5 / 99 END: 15:15 AM/PM 8 / 11 / 99 <br />DILUTIONS (X EFFLUENT) <br />Measurements Control0% 6.25% 12.5% 25% 50°~ 100% Recon <br />% Survival for Day 1 100 100 100 100 100 100 XX <br />°,6 Survival for Day Z 100 100 100 100 100 100 XX <br />% Survival for Oay 3 100 100 100 100 100 100 XX <br />% Survival for Day 4 100 100 100 100 100 100 XX <br />% Survival for Day S 100 100 100 100 100 100 XX <br />•,6 Survival for Day 8 100 100 100 100 100 80 XX <br />% Survival for Day 7 XX XX XX XX XX XX XX <br />Mean 3 Brood Total 28.7 26.9 22.1 23.3 18.9 8.2 XX <br />7 Day Mean Dry YVt )D( XX XX XX XX XX XX <br />pH MaxMtin: 8.0/7.4 8.2/7.5 8.3/7.6 8.4lT.8 8.4/8.1 8.4/8.0 )W)(X <br />Hardness (k) mg/l Receiving Water. NA Effluent: 2013 Recon water. 89 <br />Alkalinity (k) mg/L Receiving Water. NA Effluent: 221 Recon water. 42 <br />Total Ammonia as N (x) mg/L Initial Effluent: <1.0 Final Effluent: <1.0 <br />Total Residual Chlorine, mg/L 100%: <0.01 Receiving Water Used for Dilution? N <br />Were All Test Conditions in Conforn~ce with Division Guidelines? Y <br />List Deviations From Test Specifications: Effluent aerated prior to test set-up. Dissolved oxygen <br />level high -effluent supersaturated. <br />Laboratory: THE SEACREST GROUP <br />Analyst(s): Felicia Remington, Jim Hamilton <br /> <br />