Data Call-In Extended: Announcement of Process to Develop And Update Public Health Goals For Chemicals In Drinking Water And Data Call-In

May 21, 2020

Data call-in period for 1,4-dioxane extended to June 11.
15-Day Extension of Data Submission Period

The Calderon-Sher California Safe Drinking Water Act of 1996^[1] 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 are not anticipated to produce adverse health effects. PHGs are non-regulatory in nature but are to be 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 PHG development for 1,4-dioxane and an update of the PHG for n-nitrosodimethylamine.

Development and update of PHGs for these chemicals are being initiated at the request of SWRCB. OEHHA is requesting information on these contaminants that could assist in conducting the risk assessments and in calculating the PHGs. A more detailed notice, available for download below, provides a limited list of information OEHHA has identified to date as relevant to the preparation of the PHGs.

All information submitted to OEHHA in response to this request is considered public. Please do not submit proprietary information. In order to be considered during the PHG development or update process, OEHHA must receive information by June 11, 2020. 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
California Environmental Protection Agency
P.O. Box 4010, MS-12B
Sacramento, California 95812-4010
Attention: PHG Program

If you have any questions, please contact Hermelinda Jimenez at (916) 324-7572 or email PHG.Program@oehha.ca.gov.