Laboratories that analyze environmental samples must be capable of providing accurate and defensible analytical data. Many grant-based or legislatively-mandated scientific studies require the use of an accredited laboratory. In Washington, such labs must receive accreditation through Ecology to ensure they are conducting analyses according to prescribed methods. Many of these labs will accept samples from businesses or the public.
- Find a lab, and learn how to choose a lab to analyze your samples.
- Become an accredited lab, and learn more about laboratory quality assurance or the application and renewal process.
Find a lab
Lab Search database
— Find an accredited lab. Search by area, environmental parameter (analytes), and more. A printable list (PDF, below) of accredited labs is available, however, the most up-to-date information is in the Lab Search database.
How to choose an analytical laboratory
offers considerations to keep in mind when deciding which lab to hire for your analyses.
Printable lab lists
Information for laboratories