An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Certified Drinking Water Laboratories for Systems in Wyoming and on Tribal Lands in EPA Region 8

EPA Region 8 Certified Drinking Water Laboratories

EPA Region 8 directly audits and certifies the primary state laboratories in Colorado, Montana, Utah, North Dakota and South Dakota. Additionally, EPA Region 8 Lab personnel perform on-site evaluations and certify Wyoming laboratories for particular drinking water analytes and analytical methods.

The first list below contains the laboratories in Wyoming that are routinely certified by EPA Region 8.

The second table below is a list of laboratories that were previously certified for the analytes shown, either by EPA R8 or by other state labs through reciprocal agreement.

TABLE DISCLAIMER: It is the responsibility of the water system to ensure that the laboratory certification is current for the analyte of interest.

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