Water: Laboratory Certification
State Certification Officers for Drinking Water Laboratories
Updated September 2nd, 2014
Frequently Asked Question
If you want to...
- Know what contaminants are in your drinking water, check your Annual Water Quality Report from your water supplier or call the water supplier directly.
- Obtain additional tests on your water, EPA recommends that you use a laboratory certified by the state. Call the state certification officer or click the map or list below to identify a certified laboratory.
To report an update to this list, please call EPA's Safe Drinking Water Hotline (1-800-426-4791)
or send a report electronically.