b'Environmental geophysics Greg and I agree that it doesnt look as if there is a sizeable conductive plume originating from the northwest in this data set (based on the expectation that there might still be something coming from the old plant and landfill sites). To me there is an intriguing resistivity low coming in at depth along Line 4 between stations 350 and 450. And there is a much stronger conductive unit showing up on Line 5 between station 150 and 250 (most likely natural salt accumulation over the years). Like any consultant worth their (not so) exorbitant fees, I recommend that more data be collected at tighter spacing, to provide higher resolution information so we can really see whats going on.Figure 2.Resistivity-depth section of Line 4 (highlighted in Figure 1 in red). Black dashes in the plotI mentioned Amira format data files indicate the DOI as defined by Christiansen and Auken (2012). I dont know what the narrow conductive feature at ~620 m is. From the aerial photo it appears that the line crosses a pathperhaps there is a buriedearlierI have a suggestion. Perhaps we pipeline or power cable at that location. need two data files to satisfy my desire for error estimates. They would be the same in every way except that one contains the processed averaged stacked data (as it does now), while the second contains the error estimates calculated from the stacking and averaging process. Im betting that Im not the first to think of this, but it seems like a good idea to me.ReferencesChristiansen A. V. and Auken E., 2012. A global measure for depth of investigation, Geophysics, 77 (4), pp.WB171-WB177.Street G., etal., 2018. Loupe - A portable EM profiling system. AEGC 2018. pp. 3. Proceedings: Australian Society of Exploration Geophysicists.Figure 3.Resistivity-depth section of Line 5 (highlighted in Figure 1 in yellow). Black dashes in the plotindicate the DOI as defined by Christiansen et al (2012).Figure 4.Resistivity-depth slice at 10 m depth. Line colours are as described in Figure 1. Gridded data use the same colour stretch as shown in Figures 2 and 3.DECEMBER 2020 PREVIEW 42'