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Region VIII Guidance for Acute Whole Effluent Reporting <br />ERMITTEE NAME: Western Fuels Co. SITE ID: New Horizon Mine OUTFACE NO: 007 <br />50°/. MORTALITY TEST: X Pass Fail LC50: >100%. <br />TEST (AnrmaUAgeJ: Ceriodaphnia ~l4 hours. SAMPLE (Da[e/7ypeJ: 7/20/00 Grab. <br />DATE/1•iME TEST BEGAN: 7/21/00 12:15 p.m. <br />DATE/I'IME TEST COMPLETED: 9/23/00 1:30 p.m. <br />Survival Totals <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% 25% ° <br />,_ 50 % 100 % <br />Initial 20 na 20 20 20 20 20 <br />24 hrs 20 na 20 20 20 20 20 <br />4R hrs 70 na 20 20 20 20 70 <br />Max/Min Values <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% 25% 50% ° <br />Water Water 100 /o <br />Dissolved Oxygen 8.1/7.1 na 7.5/7.3 7.6/7.4 7.6/7.3 8.1/7.6 9.2/7.6 <br />Temnerafnrn (°('1 91 0/19 R na 20 0/19 R 20.0/19.R 20.0/19_R 20.0/19_R 20.0/19.R <br />.leceiving Water used for Dilution? (Y of N) N <br />Hardness, mg/L CaCO3: Receiving Water na Recon Water 184 EfFluent 1588 <br />Initial Total Residual Chlorine, mg/L CI2 100% Effluent: <0_OS <br />Reconstituted pH: Initial 8.44 After 24 hours 8.48 <br />Receiving Wafer pH: Initial na After 24 hours na <br />pH io 100% EtYtuent: Initial 8.00 After 24 hours 8.16 <br />Ammonia as N, mg/L: 100% Effluent Initial 1.42 Receiving Water na Recon Initial <0.0 <br />Conductivity, umhos/cm: 100% Efllueut 2_,700 Receiving Water na <br />Alkalinity, mg/L CaCO3: 100% Effluent 394 Receiving Water na <br />Analyst: Lee Rawlines n Laboratory: Water & Envirorunental Testine. Inc. <br />Signature: ~ ~ \~'y~~ Date• <br />