Groundwater Sampling and Quality Control of Water Analyses

Contaminated Groundwater Sampling and Quality Control of Water Analyses 

Julian K. Trick, Marianne Stuart, and Shaun Reeder  

Dedicated pump versus portable sample collection 42 

Comparison with other samples from the same source 52 

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Trick J. K., Stuart M., and Reeder S. describe the tools available to the field sampler for the collection of groundwater samples, methods of on-site water quality analysis, and the appropriate preservation and handling ofsamples. The authors discuss the merits of different purge methodologies and show how on-site measurements such as pH, specific electrical conductance (SEC), oxidation—reduction potential (ORP), dissolved oxygen (DO), temperature, and alkalinity can be used to provide a check on subsequent laboratory analyses. Techniques for the preservation and analysis of samples and quality assurance and quality control are also presented. 

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