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Client: Colowyo Coal Company C00045161 SCG Project No.: 419340.13 <br /> Site: 010,E Outfall <br /> Abstract of Results <br /> Test Conce-ntrations: Control (0%), 20%�-40% 60%, 80%, 100% <br /> 10 for Ceriodaphnia Nubia <br /> Number of Organisms/Concentration: 40 for Fathead minnow <br /> 10 for Ceriod(iphnia dubia <br /> Replicates at each Concentration: 4 for Fathead minnow <br /> Cer a hnia dubia Fathead minnow <br /> Test vessel size 30ml 500ml <br /> Exposure volume 15ml 250ml <br /> Pass Fail Status FAIL PASS <br /> Temperature Range (1,C) 24.1 —25.9 24.1 —25.7 <br /> Dissolved Oxygen Range (mg/L) 6.8 - 8.6 4.1 — 7.5 <br /> pl-I Range 7.7 - 8.5 7.5 - 8.4 <br /> CON"rROL <br /> (CeriolFHM) 100% <br /> Hardness (mg/L as Ca ) 84/82 735/784/350 <br /> Alkalinity (mg/t, as Ca CO,) 57/64 890/958/110 <br /> Total residual chlorine (mg/L) <0.0 I .01 <br /> Total ammonia (mg/L as NH3) <0.03 1.49/2.19/0.27 <br /> SeaCrest Group 4 <br />