Hello

I have been trying to plot maximum soil chemical concentrations for a given chemical as contours in Surfer. Whilst the contours appear in surfer as requested, the concentrations are consistently incorrect, and are in fact always lower than the maximum at each location.

I speculate that this may be due to the fact that ESdat or surfer are averaging the concentrations of all samples collected at each location (e.g. samples collected at various depths). If this is correct (and I am really not sure that it is), is there any way to ensure that only the maximum pollutant concentration at each location is actually plotted.

 Cheers