A two stage sampling strategy is necessary in order to optimize the
study of distribution of pollution in soils and groundwater. First,
detailed sampling from a limited area coupled with statistical analysis
of the data are used to determine the microvariability of the
parameter(s). The results from this detailed analysis are then used to
calculate the optimal spacing between samples for the larger scale
study. This two stage sampling strategy can result in significant
financial savings during subsequent soil or groundwater remediation.
This combined sampling and statistical analysis approach is illustrated
with an example from a heavy metal contaminated site.