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<br />SeaCrest Project Number. 399051 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Peabody Coal CDPS No: CO-0000221 OUTFACE: 010 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Ceriodapnnia du6ia <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 11:45, February 9, 1999 End: 11:45, February 11, 1999 <br />Dilutions (Percent Effluent) <br />Mwwremants Conttd <br />0% 12.6% 26Ye 60Y. 75Y. 700Y. XX <br />No. (~ Start of Test 20 20 20 20 ~ 20 20 XX <br />No. Live after 24 hours 20 20 20 20 20 ~20 XX <br />No. Live after 49 hours 20 20 20 20 20 20 XX <br />No. Live after 72 hours XX XX XX XX XX XX XX <br />No. Live after 96 hours XX XX 70( XX ~ XX XX XX <br />Receiving Water Used for Dilution: Yes: No: XX Total Resid. Chlorine, mglL: 100%: <0.01 <br />Hardness, mg/L: Receiving Water. NA Effluent: 1000 Recon. Water. 90 <br />Alka-inity, mglL: Receiving Water: NA Efttuent: 341 Recon. Water. 41 <br />pH: Initial -Control: 7.9 100%: 7.7 Final -Control: 7.7 100%: 8.2 <br />Total Ammonia as N, mg/L: Initial - 100%: <1.0 Final - 100%: NA <br />Were All Test Conditions In Conformance With Division Guidelines? Yes <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: THE SEACREST GROUP <br />COMMENTS: <br />ANALYST'S NAME(S): Brandi Bilbo <br />SIGNATURE/DA <br /> <br />