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iii~iiiiiiiiiiiiiiii~ <br />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 (Animal/Age): Ceriodaphnia <24 hours. <br />DATE/T1ME TEST BEGAN: 6/20/01 1 I :45 a. m. <br />SAMPLE (Dale/type): 6/19/01 Grab. <br />DATE/I'IME TEST COMPLETED: 6/22/01 11:00 a.m. <br />Survival Totals <br />Dilutions (% Effluent) <br />Recon Receiving 6.25% 12.5% ° ° ° <br />Water Water 25 /0 50 /0 100 /o <br />initial 20 na 20 20 20 20 20 <br />24 hrs 20 na 20 20 20 20 20 <br />4R hrs 70 na 70 20 70 70 70 <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 8.7/8.2 na 8.7/8.2 8.8/8.2 8.9/7.2 9.1/8.2 9.5/8.3 <br />Temnerah~re t°('1 71 0/20 0 na 70 R/ 0 0 70 fi/70.0 70 4/20.0 20 7/20.0 20 ?/20.0 <br />cceiving Water used (or Dilution? (Y of N) N <br />Hardness, mg/L CaCO3: Receiving Water na Recon Water 192 EfFluent 292 <br />Initial Total Residual Chlorine, mg/L CI2 100% E(Iluent: <0OS <br />Reconstituted pH: Initial 8.01 After 24 hours 7.95 <br />Receiving Water pH: Initial na After 24 hours na <br />pH in 100% Effluent: Initial 8.15 After 24 hours 8.08 <br />Ammonia as N, mg/I.: 100% Effluent Initial <0.05 Receiving Water na Recon Initial <0OS <br />Conductivity, umhos/cm: 100% Effluent 527 Receiving Water na <br />Alkalinity, mg/L CaCO3: 100% Effluent 160 Receiving Water na <br />Analyst: Lee Rawlings Laboratory: Water & Environmental Testing. Inc. <br />Signature: ~'ii"-""~~ ~~ ~~ <br />Comments: <br />Dale: ~O/~/( <br />