Laserfiche WebLink
<br />Results <br />• WHOLE EFFLUENT TOXICITY BIOASSAY <br />The efFluent sample did not indicate acute toxicity towards Pimephales promelas and Daphnia <br />magna survival. The following table highlights statistical endpoints for each species tested: <br />SPECIES LCs° ICzs~ NOEC° LOECs <br />Fathead minnow >100% - 100% >100% <br />Daphnia magna >100% 100% >100% <br />• EFFLUENT AND LABORATORY WATER CHEMISTRIES <br />PARAMETER EFFLUENT MEDIUM HARD <br />LAB WATER HARD LAB <br />WATER <br />Dissolved Oxygen (mglL) 8.0 8.3 8.2 <br />pH (Standard Units) 8.1 8.4 7.9 <br />Hardness (mglL CaC03) 1770 85 185 <br />Alkalinity (mg/L CaCO,) 455 60 125 <br />Ammonia (mg/L as N) X1.0 <1.0 <1.0 <br />Residual Chlorine (mg/L) <0.1 <0.1 <0.1 <br />Conductivity (µmhos/cm) 3290 300 720 <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 4 4 2D.00 10.00 <br />75% 20 40 1 3 5.00 7.50 <br />50% 20 40 0 2 0.00 5.00 <br />25% 20 40 1 1 5.00 2.50 <br />12.5% 20 40 0 0 0.00 0.00 <br />Control 20 40 1 0 5.00 0.00 <br />' Inhibition Concentration at 25% Reduction <br />° No Observed Effect Concentretion <br />s Lowest Observed Effect Concentration <br />F 526 <br />