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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

QA/QC Guidance for Sampling and Analysis of Sediments, Water, and Tissues for Dredged Material Evaluations

The purpose of this document is as follows: 1) to provide guidance on the development of quality assurance project plans for ensuring the reliability of data gathered to evaluate dredged material proposed for discharge under the Clean Water Act or the Marine Protection, Research, and Sanctuaries Act; 2) to outline procedures that should be followed when sampling and analyzing sediments, water, and tissues; and 3) to provide recommended target detection limits for chemicals of concern.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.