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Region VIII Guidance for Acute Whole Effluent Reporting <br />°ERMITTEE NAME: Western Fuels Co. (Ace. Test #1) SITE [D: New Horizon Mine OUTFACE NO: 008 <br />• '. <br />50% MORTALITY TEST: Pass X Fail LC50: 68.3% <br />TEST (Arsimal/Age): Ceriodaphnia <24 hours. SAMPLE (Datellype): 1!2102 Grab. <br />DATE/IIME TEST BEGAN: U3f02 2:30 pm DATElTIME TEST COMPLETED: 1/5102 2:40 pm <br />Survival Totals <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% ° <br />Water Water 25 /o SO /0 100 /o <br />Initial 20 na 20 20 20 20 20 <br />24 hrs 20 na 20 20 20 20 3 <br />4R hrs 70 na ~ ?n 20 20 19 n <br />Max/Min Values <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% 25% ° ° <br />Water Water 50 /0 100 /o <br />Dissolved Oxygen 7:7/6.2 na 7.8/6.3 7.8/6.5 7.7/6.7 8.1/6.8 8.9/6.4 <br />Temnerahire (°Cl ~n ann n na ~na/2n.n 7n ar7n n 2n.ar2nn 7nann n ~n aJ~n n <br />Receiving Water used for Dilution? (Y of N) N <br />Hardness, mg/L CaCO3: Receiving Water na Recon Water 192 Effluent 2 732 <br />Initial Total Residual Chlorine, mg/L C12 100% Effluent: <0~05 <br />Reconstituted pH: Initial 7.90 After 24 hours 7.99 <br />Receiving Water pH: Initial na After 24 hours na <br />pH in 100% Effluent: Initial 7.07 After 24 hours 8.20 <br />Ammonia as N, mg/L: 100% Effluent Ini[ia] 3_34 Receiving Water na Recon Initial <0OS <br />Conductivity, umhos/cm: 100% Effluent 4 250 Receiving Water na <br />Alkalinity, mglL CaCO3: 100% E[ffuent S l2 Receiving Water na <br />Analyst: Lee Rawlines~,~/ Laboratory: Water & Environmental Testing. Inc. <br />Signature: "-"" ~ Date: ~~~/O~ <br />Comments• <br />~.l <br />~% <br />;;°~ Page 3 of 7 , , , _ <br />