An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Field Sampling Procedures for Region 9

On this page:

Surface Water

Ground Water

Ground Water Investigations Guidance

Data Analysis

Statistical Methods in Water Resources: Techniques and Methods 4-A3
Statistical methods for the analysis of water resources data.

Subsurface Characterization and Monitoring Techniques: A Desk Reference Guide

Field methods for characterizing, sampling and monitoring the subsurface saturated and unsaturated zones at contaminated waste sites.