Laserfiche WebLink
~~~ <br />Results <br />• WHOLE EFFLUENT TOXICITY BIOASSAY <br />The effluent sample did not indicate acute toxicity towards Pimephales p~omelas and Daphnia <br />magna survival. The following table highlights statistical endpoints for each species tested: <br />SPECIES LCso ICss° NOEC' LOECS <br />Fathead minnow >100% - 100°!0 >100% <br />Daphnia magna >100% 100°fo >100% <br />EFFLUENT AND LABORATORY WATER CHEMISTRIES <br />PARAMETER EFFLUENT MEDIUM HARD <br />LAB WATER HARD LAB <br />WATER <br />Dissolved Oxygen (mg/L) $.9 7.4 6.9 <br />pH (Standard Units) 7.9 8.0 8.3 <br />Hardness (mg/L CaC03) 2100 120 230 <br />Alkalinity (mg/L CaCO,) 275 60 100 <br />Ammonia (mg/L as N) =1.0 <1.0 <1.0 <br />Residual Chlorine (mg/L) X0.1 <0.1 <0.1 <br />Conductivity (µmhos/cm) 3290 370 680 <br />• FATHEAD MINNOW AND DAPHNIA MAGNA SURVIVAL DATA <br />CONCENTRATION ORGANISMS EXPOSED <br />DM FH MORTALITIES <br />DM FH % MORTALITY <br />DM FH <br />100°!° 20 40 0 0 0.00 0.00 <br />75% 20 40 0 1 O.DO 2.50 <br />50% 20 40 0 0 0.00 0.00 <br />25% 20 40 0 0 0.00 0.00 <br />12.5% 20 40 0 0 0.00 0.00 <br />Control 20 40 0 0 0.00 0.00 <br />3 Inhibition Concentration at 25% Reduction <br />° No Observed Effect Concentration <br />s Lowest Observed Effect Concentration <br />F 52B <br />