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SeaCrest Project Number. 399298 <br />COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Seneca Coal Company CDPS No: CO-0000221 OUTFAI.L: 008 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Pimepha/es prome/as IWC: 15.0% <br />TEST RESULTS: LETHALITY GROWTH RFPRArfI lr_TIAN <br />Conc, With Stet. <br />Difference >100% 75% NA <br /> PASS PASS PASS/FAIL <br />IC25 >100°i5 >100% NA <br /> PASS PASS PASS/FAIL <br />STAT. METHOD USED: Statistical Diff.: Dunnett's ANOVA, Steels Rank Test IC25: ICp <br />DATE: START: 11:30 AM/PM 8 / 5 / 99 END: 11:30 AM/PM 81 12 / 99 <br />DILUTIONS (•~ EFFLUENT) <br />Measurements Control 0% 12.5°~ 25% 50% 75% 100% Recon <br />% Survival for Day 1 100 100 100 100 100 100 XX <br />% Survival for Day 2 100 100 100 100 100 100 XX <br />°~ Survival for Day 3 100 100 100 100 100 100 XX <br />% Survival for Day 4 100 100 100 98 98 100 XX <br />°.6 Survival for Day 3 100 100 98 95 90 95 XX <br />% Survival for Day 8 100 100 95 95 88 93 XX <br />°,6 Survival for Day 7 100 100 88 95 88 90 XX <br />Mean 3 Brood Total )p( )()( )()( )p( )()( )()( )p( <br />7 Day Mean Dry Wt 0.38 0.36 0.31 0.29 0.27 0.31 XX <br />pH Max/Min: 8.2lT.5 8.3!1.5 8.317.6 8.dI1.6 8.4f1.8 8.5!/.9 XX/J(X <br />Hardness (n) mg/L Receiving Water. NA Effluent: 2150 Recon water. 85 <br />Alkalinity {sz) mg/L Receiving Water. NA Effluent: 154 Recon water. 57 <br />Totat Ammonia as N (k) mg/L Initial Effluent: <1.0 Final Effluent: <1.0 <br />Total Residual Chlorine, mg/L 100°h: <0.01 Receiving Water Used for Dilution9 N <br />Were All Test Conditions in Conformance with Division Guidelines? Y <br />List Deviations From Test Specifications: Efffuerrt aerated prior to test set-up - DO supersaturated. <br />Test aerated starting Day 3 when DO dropped below 4.5 mg/L. <br />Laboratory: THE SEACREST GROUP ///~~~ <br />Anatyst{s): GeoflHenderson, Kevin Olmstead i~~~V/ / /~ ~ /~ )~Q <br />Signature/DatP• . (~ / / / <br /> <br />