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 LC5° 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 (mg/L) 8.4 8.0 8.7 <br />pH (Standard Units) 7.7 7.8 8.0 <br />Hardness (mg/L CaC03) 2010 115 160 <br />Alkalinity (mg/L CaC03) 430 75 105 <br />Ammonia (mg/L as N) X7.0 <1.0 <1.0 <br />Residual Chlorine (mg/L) <0.1 <0.1 <0.1 <br />Conductivity (µmhos/cm) 3190 390 400 <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 1 0 5.00 0.00 <br />75% 20 40 0 0 0.00 0.00 <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 />a Inhibition Concentration at 25°/6 Reduction <br />" No Observed Effect Concentration <br />5 Lowest Observed Effect Concentration <br />F-526 <br />