Drinking Water Analytical Methods
Announcements and Updates
- ELAP accreditation for EEA-Agilent Method 521.1 for determination of nitrosamines in drinking water coming soon.
Statutory Requirement and Authority
California law (Health and Safety Code § 116350) states that the State Water Board has the responsibility to “[c]onduct research, studies, and demonstration projects relating to the provision of a dependable, safe supply of drinking water,” to include on the “[i]mproved methods to identify and measure the existence of contaminants in drinking water and to identify the source of the contaminants.”
Methods Currently in Development or Validation
- 1,4-Benzotriazole – Method Optimization and Validation
- Broad Spectrum PFAS – Method Comparison and Validation
- Saxitoxin – Method Validation
- Trifluoroacetic Acid/Trifluoroacetate (TFA) – Method Optimization and Validation
Methods Approved for Accreditation
- 1,2,3-Trichloropropane
- Microplastics
- Method SWB-MP1-rev1 (Infrared Spectroscopy)
- Method SWB-MP2-rev1 (Raman Spectroscopy)
- Microplastics Program Page
- Nitrosamines
Recommendations
To recommend an analyte or analytical method for method development or validation, or if interested in participating in a multi-laboratory method validation study, please contact the following:
- Drinking water: DDWRegUnit@waterboards.ca.gov
- Recycled water: ddwrecycledwater@waterboards.ca.gov
Stay informed
Join the Mailing List
Subscribe to the Drinking Water Program Announcements email topic to receive notifications and the latest updates.
Contact Us
State Water Resources Control Board
Division of Drinking Water
Regulatory Development Unit
Mailing Address:
P.O. Box 100
Sacramento, CA 95812-0100
Street Address:
1001 I Street
Sacramento, CA 95814
E-mail us at DDWRegUnit@waterboards.ca.gov.
