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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 />SO% MORTALITY TEST: X Pass Fail LC50: >100%. <br />TEST (AnimaUAge): Ceriodaphnia Gz4 hours. <br />DATE/I'IME TEST BEGAN: 621/00 11:35 a.m. <br />SAMPLE (Date/7ype): 620/00 Grab. <br />DATE/1'IME TEST COMPLETED: 623/00 12:35 p.m. <br />Survival Totals <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% o 0 <br />Water Water 25 /0 50 /0 100 /. <br />Initial 20 na 20 20 20 20 20 <br />24 hrs 20 na 20 20 20 20 20 <br />Max/Miu Values <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% ° ° <br />Water Water 25 /0 50 /0 100 /o <br />Dissolved Oxygen 7.6/7.2 na 7.8/7.3 7.9/7.3 8.2/7.3 9.0/7.4 9.9/7.4 <br />T • _ •O/~\ 'll /Vl(1 A __ Oh O/I(1 A 0l1 O/I (1 A 9/1 O/I fl A 9ll O/1!f A 0I1 O/I (1 A <br />Receiving Water used for Dilution? (Y of N) N <br />Hardness, mg/L CaC03: Receiving Water na Recon Water 188 EfRuent l <br />Initial Total Residual Chlorine, mg/L CI2 100% Efiuent: <0OS <br />Reconstituted pH: Initial 8.46 ARe~ 24 hours 8.55 <br />Receiving Water pH: Initial na ARer 24 hour; na <br />pH io 100% Efiuent: Initial 7.80 After 24 hoots 8.23 <br />Ammonia as N, mg/L: 100% Efiuent Initial .45 Receiving Water na Recon Initial <0.05 <br />Conductivity, umhos/cm: I00%Efiuent 2~ Receiving Water na <br />Alkalinity, mg/L CaC03: 100% Effluent 358 Receiving Water na <br />Analyst: Lee Rawlins ~ Laboratory: Water & Environmental Testine. Inc. <br />Signature: //`"'"~l ~A~~~r2~2 Date: ~ ~'~O <br />