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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 (AnimaUAgeJ: Fathead Minnow, 7 days. <br />DATE/1'[ME TEST BEGAN: 621/00 11:45 a.m. <br />SAMPLE (Dalrllype): 620/00 Grab. <br />DATE/I'IME TEST COMPLETED: 625/00 2:00 p.m. <br />Survival Totals <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% ° <br />Water Water 25 /0 50 /. 100 /o <br />Initial 20 na 20 20 20 20 20 <br />24 hrs 20 na 20 20 20 20 20 <br />48 hrs 20 na 20 20 20 20 20 <br />72 hrs 20 na 20 20 20 20 20 <br />96 hrc 20 na 20 20 20 20 20 <br />Max/Min Values <br />Dilutions (% Effluent) <br />Recon Receiving 6 25% 12 5,/0 0 0 0 <br />Water Water 25 /0 50 /0 10010 <br />Dissolved Oxygen 7.5/6.0 na 7.8/6.1 7.9/6.2 8.2/6.3 9.0/6.3 9.9/6.9 <br />Temneratnre !°('1 71 (1/192 na 21.0/192 20.R/19.2 20.R/192 20 R/192 20.R/192 <br />Receiving Water used for Dilution? (Y of N) N <br />Hardness, mg/L CaCO3: Receiving Water na Recon Water 188 EfRuent 1472 <br />Initial Total Residual Chlorine, mg/L C12 100% Effluent: <0OS <br />Reconstituted pH: Initial 8.46 ARer 24 hours 8.07 <br />Receiving Water pH: Initial na After 24 hours na <br />pH io 100% Effluent: Initial 7.80 After 24 hours 8.1 I <br />Ammonia as N, mg/L: 100% Effluent .45 Receiving Water na Recon <0_OS <br />Conductivity, umhos/cm: 100% Effluent 2 680 Receiving Water na <br />Alkalinity, mg/L CaCO3: 100% Etilueat 358 Receiving Water na <br />Analyst: <br />y: Water & Environmental Testine. inc. <br />Signature: Date: ~ t7 VDU <br />