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COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE NAME: Western Fuels-Colorado (New Horiwn Mine) NPDES NO: OUTFACE NO: 007 <br />TYPE OF TEST: ROUTINE: IC ACCELERATED: TESL' SPECIES: Ceriodaohnia dubla <br />50% MORTALITY TEST: X Pass _ Fail LC50: > 100%. STATISTICAL METHOD USED: None required <br />DATE/1'I1VIE TESL' BEGAN: 10/11/96 6:00 p.m. DATE/TIME TEST COMPLETED: 10/13/96 7:00 p.m. <br />MEASUREMENTS <br />Dilutions (% Effluent) <br />Control Receiving 6.25% 12.5% 25% 50% 100% <br />(0%) Water <br />Initial 20 na 20 20 20 20 20 <br />Alive after 24 6rs 20 na 20 20 20 20 20 <br />after 48 hts 20 na 20 20 20 20 20 <br />RECEIVING WATER USED FOR DILUTION? (Y of N) N TOTAL RESIDUAL CHLORINE, MG/L: <0.05 <br />HARDNESS, MG/L: Receiving Water 1.133• Effluent 1.657 Recon Water 1,110 <br />ALKAI.INI'Tl', MG/L: Receiving Water 352' Effluent 300 Recon Water 398 <br />PH: INITIAL- Control 8.49 100% 7.71 FINAL Control 8.52 100% 8.01 <br />T AMMONIA AS N, MG/L: Initial 100% 0.56 Final 100% <br />WERE ALL TESL' CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST THE DEVIATIONS FROM TESL' SPECIFICATIONS: <br />LABORATORY: <br />SIGNATURE: <br />G~w <br />ANALYST': Lee Rawlines <br />lv~z~~9~ <br />DATE: 10 21 96 <br />COMMENTS: <br />