Laserfiche WebLink
Results <br />• WHOLE EFFLUENT TOXICITY BIOASSAY <br />The effluent sample did not indicate acute toxicity towards Pimephales promelas and <br />Ceriodaphnia dubia survival. The following table highlights statistical endpoints for each species <br />tested: <br />SPECIES LCso NOEC3 LOEC° <br />Fathead minnow. >100 % 100% >100 % <br />Ceriodaphnia dubia >100 % 100% >100 % <br />• EFFLUENT AND LABORATORY WATER CHEMISTRIES <br />PARAMETER EFFLUENT LABORATORY WATER <br />Dissolved Oxygen (mg/L) 8.9 8.9 <br />pH (Standard Units) 9.1 8.3 <br />Hardness (mg/L CaCO3) 1703 101 <br />Alkalinity (mg/L CaC03) 183 49 <br />Ammonia (mg/L as N) --3.0 <0.1 <br />Residual Chlorine (mg/L) <0.1 <0.1 <br />Conductivity (µmhos/cm) 3280 335 <br />• FATHEAD MINNOW AND' CERIODAPHNIA DUBIA SURVIVAL DATA <br />CONCENTRATION ORGANISMS EXPOSED <br />CD FH MORTALITIES <br />CD FH % MORTALITY <br />CD FH <br />Control 20 40 2 4 10.0 10.0 <br />12.5% 20 40 2 2 10.0 5.0 <br />25% 20 40 0 5 0.0 12.5 <br />50% 20 40 1 2 5.0 5.0 <br />75% 20 40 2 8 10.0 20.0 <br />100% 20 40 1 8 5.0 20.0 <br />3 No Observed Effect Concentration <br />4 Lowest Observed Effect Concentration <br />3