How many samples should I collect to characterize a site?
- Date added:
- Wednesday, 28 January 2009
Answer
For most sites we recommend at a minimum collecting samples across a gradient (e.g. upgradient, source, mid-plume, downgradient, etc.) Sample locations can also be selected based upon changes in contaminant concentrations. For example, select sampling locations in which the primary contaminant varies by one order of magnitude. Unfortunately, collecting just one sample will not provide a lot of information about what is going on at a given site.



