PFAS Water Testing Labs in Washington (21 state-certified labs)
Labs on Washington's official certification list that test drinking water for PFAS, with the ones that take homeowner samples first.
21 named for PFAS itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Washington but on its list.
USGS estimate for Washington.
How many labs test for PFAS in Washington
21 labs on Washington's official drinking-water lab list are certified to test for PFAS. All 21 are named for PFAS on the list. 21 of them are marked as taking samples from the public. They are listed first. 19 are located outside Washington.
The list is published by the Washington State Department of Ecology - Lab Accreditation Program (with WA DOH). List version on file: Information current as of 11/13/2026. Fetched 2026-11-15 (UTC).
Washington labs certified for PFAS
Marked as taking public samples (21)
| Lab | Location | PFAS certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| Advanced Environmental Laboratories, Inc.- Jacksonville | Jacksonville, FL | Named on the official list | Public samples: yes (per state) | 03/05/2027 |
| Alliance Technical Group, LLC-Akron | Cuyahoga Falls, OH | Named on the official list | Public samples: yes (per state) | 01/04/2027 |
| ALS Environmental - Kelso | Kelso, WA | Named on the official list | Public samples: yes (per state) | 07/08/2027 |
| Anatek Labs, Inc - Moscow | Moscow, ID | Named on the official list | Public samples: yes (per state) | 03/20/2027 |
| Battelle Analytical Chemistry Services Laboratory | Norwell, MA | Named on the official list | Public samples: yes (per state) | 03/01/2027 |
| BSK Associates | Fresno, CA | Named on the official list | Public samples: yes (per state) | 03/10/2027 |
| Bureau Veritas Canada (2019) Inc. | Mississauga, ON | Named on the official list | Public samples: yes (per state) | 12/16/2026 |
| EMSL Analytical, Inc. - Cinnaminson | Cinnaminson, NJ | Named on the official list | Public samples: yes (per state) | 07/14/2027 |
| Energy Laboratories, Inc.-Billings, Mt | Billings, MT | Named on the official list | Public samples: yes (per state) | 12/05/2027 |
| Eurofins Lancaster Laboratories Environmental Testing, LLC | Lancaster, PA | Named on the official list | Public samples: yes (per state) | 04/11/2027 |
| Eurofins Pomona | Pomona, CA | Named on the official list | Public samples: yes (per state) | 03/13/2027 |
| Eurofins Sacramento | West Sacramento, CA | Named on the official list | Public samples: yes (per state) | 05/05/2027 |
| Eurofins South Bend | South Bend, IN | Named on the official list | Public samples: yes (per state) | 01/01/2027 |
| IEH Analytical Laboratories | Seattle, WA | Named on the official list | Public samples: yes (per state) | 06/17/2027 |
| Onterris Laboratories, LLC - El Dorado Hills | El Dorado Hills, CA | Named on the official list | Public samples: yes (per state) | 02/26/2027 |
| Onterris Laboratories, LLC - Wilmington | Wilmington, NC | Named on the official list | Public samples: yes (per state) | 02/06/2027 |
| Pace Analytical Services, LLC - Mansfield, MA (320 Forbes) | Mansfield, MA | Named on the official list | Public samples: yes (per state) | 11/07/2027 |
| Pace Analytical Services, LLC-Ormond Beach FL | Ormond Beach, FL | Named on the official list | Public samples: yes (per state) | 12/30/2026 |
| RJ Lee Group, Inc. - PA | Monroeville, PA | Named on the official list | Public samples: yes (per state) | 12/30/2026 |
| SGS - Orlando | Orlando, FL | Named on the official list | Public samples: yes (per state) | 03/04/2027 |
| SGS North America Inc. | Wilmington, NC | Named on the official list | Public samples: yes (per state) | 08/13/2027 |
How the Washington list marks public samples (whole list). Yes/no from Ecology's 'Search labs that accept public samples' list, where the label is 'Accepts Commercial/Public Samples'. That is broader than 'homeowner' and includes some utility labs, so call before you send a sample.
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for PFAS in Washington
EPA's 4.0 ng/L limits for PFOA and PFOS cover public water, not private wells, and its May 2026 proposals to roll back four other PFAS limits are not final. Read our PFAS explainer.
About 1,023,853 people in Washington used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [1] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: Washington.
Other tests in Washington
WA Ecology - Environmental Laboratories Accredited for Drinking Water Analyses (with scopes).
Official source