Washington State requires labs that analyze environmental samples and monitoring data to be accredited by Department of Ecology’s Laboratory Accreditation Unit (LAU). This ensures labs follow approved methods when analyzing samples, therefore providing accurate and defensible analytical data. Once a lab is certified, they receive an Ecology laboratory ID number. After LAU assigns a number, the Department of Health Office of Drinking Water (ODW) assigns a separate three-digit ODW specific ID number that labs use when reporting data to the state.
For Laboratories
To start the accreditation process contact the LAU at:
Ruth Powers-Piccone rpic461@ecy.wa.gov
360-871-8840
More Information
Ecology Lab Accreditation:
Helpful ODW Links for accredited laboratories:
ODW Contacts
Andy Schut 360-236-3197
Accredited Laboratory Information For The General Public
To find an accredited laboratory, use the Department of Ecology's Interactive Lab Search Page
To search by Analyte (what you’re looking for in your water sample)
- Select “Search by Analyte”
- From the drop-down menu, choose the analyte you want
- Click to select “Show only labs that accept public samples”