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SeaCrest Project Number: 300350 <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Peabody Coal CDPS No: CO-0000221 OUTFACE: 005 <br />TYPE TEST: Routine: XX Accelerated: Test Species: Daphnia magna <br />TEST RESULTS: LC50: >100% <br />STATISTICAL METHOD: Probit <br />Test Time & Date: Begin: 12:20, August 19, 2000 End: 12:20, August 21, 2000 <br />Dilutions (Percent Effluent) <br />Measurements Control <br />0°~ 12.5% 25°!° SON° 75% 100°/. 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 l(X <br />No. Live after 4B hours 20 20 20 20 20 20 XX <br />Na. Live after 72 hours XX )O( XX XX XX XX XX <br />Na. Live after 96 hours XX XX XX XX XX XX XX <br />Receiving Water Used for Dilution: Yes: No: XX Total Resid. Chlorine, mg/L: 100%: <0.01 <br />Hardness, mg/L: Receiving Water. NA Effluent: 2848 Recon. Water. 90 <br />Alkalinity, mg/L: Receiving Water: NA Effluent: 67 Recon. Water. 55 <br />pH: Initial -Control: 7.9 100%: 7.7 Final -Control: 7.3 100%: 7.7 <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 />LIST ADJUSTMENTS TO TEST: <br />LABORATORY: THE SEACREST GROUP <br />COMMENTS: <br />ANALYST'S NAME(S): Geoff Henderson, Stacey Breslow <br />SIGNATURE/DA <br />