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

A Public Health Goal (PHG) of 0.7 mg/L (700 ppb) for trichlorofluoromethane (FC-11) is developed.

A Public Health Goal (PHG) of 0.3 mg/L (300 ppb) is developed for ethylbenzene in drinking water.

A Public Health Goal (PHG) of 2 ppb is developed for lead in drinking water based on the neurobehavioral effects of lead in children and the hypertensive effects of lead in adults.

A Public Health Goal (PHG) of 20 ppb is developed for antimony and its compounds in drinking water.

: 1,4-Dioxane Action Level

An Action Level of 3 parts per billion (ppb) is developed for 1,4-dioxane in drinking water.