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

OEHHA announces the availability of six Public Health Goals for chemicals in drinking water.  These chemicals are: carbofuran, carbon tetrachloride, dichloromethane, diquat, thiobencarb, and vinyl chloride

OEHHA recommends a Notification Level of 15 ppb (ug/L) for vanadium in drinking water.

OEHHA recommends an action level of 140 ppb (ug/L) for o-chlorotoluene in drinking water.

OEHHA recommends a Notification Level of 170 ppb (ug/L) for naphthalene in drinking water.

OEHHA announces the availability of a second draft of 12 draft technical support documents for Public Health Goals (PHGs) for chemicals in drinking water.  These chemicals are: aluminum, benzene, carbofuran, carbon tetrachloride, dichloromethane, diquat, nickel, simazine, tetrachloroethylene, thiobencarb, uranium, and vinyl chloride.