the bottom of the interrogated region, residual PCE was observed in the swept volume of MLS-7 and MLS-4. Table 2-5. Percent PCE saturations from the post-flood PITT at Sages. No-value (nv) indicates insufficient tracers arrived at the well to resolve the PCE saturations. Column 2 is the RW and mean MLS results, the other columns are the specific MLS depth PITT results. Well Post PCE SN 8.08 m 8.69 m 9.07 m 9.45 m 9.91 m RW-2 0.124 RW-3 0.109 RW-4 0.146 RW-5 0.231 RW-6 0.108 RW-7 0.146 Mean MLS MLS-1 0.166 0.154 0.313 0.158 0.112 0.092 MLS-2 0.117 0.096 0.173 0.150 0.074 0.091 MLS-3 0.187 0.207 0.257 0.182 0.137 0.150 MLS-4 0.267 0.103 0.252 0.159 0.195 0.624 MLS-5 nv nv 0.146 0.072 nv nv MLS-6 0.133 0.120 0.170 0.103 0.118 0.154 MLS-7 nv 0.151 nv 0.156 0.464 nv Post-remedial PITT PCE saturations are presented spatially using Surfer in Figure 2-10, the map view of the entire source zone shows RW and mean MLS results. Overall reductions in PCE saturation were observed throughout the source zone. The lower figures show map view depth slices of the MLS SN results. There is some residual PCE in the upper swept zones traveling to MLS-1 and MLS-3 and higher residual saturations in the lower swept volumes of MLS-4 and MLS-7. The tracers did not arrive at 9.91 m bgs at MLS-7, but from the 9.45 m visualization, it can be expected that there is PCE there as well. Similar to the RW-5 and MLS-5 situation, not only did tracers not appear at RW-7 and MLS-7 at the lowest depth, but remedial fluids did not thoroughly flush this zone due to inferred lower hydraulic conductivity.