Upcoming Drinking Water Regulations
Adopted Drinking Water-Related Regulations
Annual Division of Drinking Water Regulatory Priority Board Resolutions
Regulations in Process or Planned
- Maximum Contaminant Levels (MCL)
- Perfluorooctanoic acid (PFOA) and Perfluorooctane sulfonic acid (PFOS)
- Arsenic
- N-nitroso-dimethylamine (NDMA)
- Styrene
- Cadmium and Mercury
- Disinfection Byproducts (DBPs)
- Lead and Copper Rule (LCR)
- Detection Limits for Purposes of Reporting
- Primacy Package Approvals
- Public Notification Rule
- Consumer Confidence Reports (CCRs).
- Rulemaking page coming soon. More information on CCRs.
- Water Quality Standards for On-site Treatment and Reuse
- Notification and Response Levels (NL/RL)
- Electronic Reporting of Drinking Water Quality Data
- Quinquennial Maximum Contaminant Levels Review
- Financial Assurances. Rulemaking page coming soon.
Other Regulations and Policy Handbooks of Interest
Upcoming Federal Rules
Other Information
- Division of Drinking Water
- Information for Public Water Systems
- Adopted Regulations
- Annual Division of Drinking Water Regulatory Priority Board Resolutions
- 2024: State Water Board Resolution No. 2024-0009
- 2023: State Water Board Resolution No. 2023-0007
- 2022: State Water Board Resolution No. 2022-0007
- 2021: State Water Board Resolution No. 2021-0009
- 2020: State Water Board Resolution No. 2020-0005
- 2019: State Water Board Resolution No. 2019-0009
- 2018: State Water Board Resolution No. 2018-0009
- Office of Administrative Law Rulemaking Training and Resources
Stay informed
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Subscribe to the Drinking Water Program Announcements email topic to receive notifications and the latest updates.
Contact Information
Melissa Hall, P.E.
Senior Water Resource Control Engineer
(916) 323-0373
Melissa.Hall@waterboards.ca.gov
Randy Barnard, P.E.
Supervising Water Resource Control Engineer
(619) 525-4022
Randy.Barnard@waterboards.ca.gov
