Public Health Goals in Drinking Water for Perfluorohexane Sulfonic Acid (PFHxS) and Arsenic
The Calderon-Sher California Safe Drinking Water Act of 1996 requires the Office of Environmental Health Hazard Assessment (OEHHA) to post a notice on its website when initiating the development or update of public health goals (PHGs) for contaminants in drinking water. PHGs are concentrations of chemicals in drinking water that pose no significant risk to health. PHGs are non-regulatory in nature but are used as the health basis to support California's primary drinking water standards (Maximum Contaminant Levels, or MCLs) established by the State Water Resources Control Board (SWRCB) for chemicals subject to regulation.
This public notice announces the initiation of reviews for two chemicals:
The development of a PHG for PFHxS and update of the PHG for arsenic are both being initiated at the request of SWRCB. The PHG development/update will incorporate relevant new data. OEHHA is requesting information on these contaminants that could assist in conducting the risk assessments and in calculating the PHGs.
Public Comments
The 30-day public comment period will start on October 03, 2025 and end on November 03, 2025. All information submitted to OEHHA in response to this request is considered public. Please do not submit proprietary information. Electronic submission of information via OEHHA’s website (https://oehha.ca.gov/comments) is encouraged. Information submitted in paper form may be mailed or delivered in person to the address below:
Pesticide and Environmental Toxicology Branch
Office of Environmental Health Hazard Assessment
P. O. Box 4010, MS-12B
Sacramento, California 95812-4010
Attention: PHG Program
If you have any questions, please email PHG.Program@oehha.ca.gov.
Link to Public Comments
Chemical Reference
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