Water

OEHHA performs major risk assessment and hazard evaluation activities relating to chemical contaminants in drinking water. These activities include developing health advisories, Public Health Goals for chemical substances in drinking water, Notification Levels, and providing toxicological assistance for chemical monitoring activities for the drinking water supply. The program also provides education to the public and other governmental agencies on drinking water contamination and drinking water regulatory standards development.

Public Health Goals

Level of a chemical contaminant in drinking water that does not pose a significant risk to health

Notices

Legal notices for Public Health Goals and Notification Levels

Notification Levels

Health-based advisory levels for chemicals in drinking water

Reports

Reports focusing on water

Human Right to Water

OEHHA’s assessment framework and data tool related to drinking water quality, accessibility, and affordability

Reports, Notices, Documents

The completion of this Public Health Goal is a first step in California's efforts to address the presence of perchlorate in our state's drinking water supplies.

OEHHA announced that the public health goal (PHG) for perchlorate in drinking water was identified as 6 ppb (parts per billion).

The Public Health Goal for perchlorate was finalized and the technical support document was made available.

Three scientific peer reviews on the draft Public Health Goal for perchlorate are available.

OEHHA announces a second public comment period for the revised draft Public Health Goal for arsenic in drinking water.