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

April 1, 2005: State's Drinking Water Goal for Perchlorate Consistent With Findings of Major Federal Study

OEHHA announced that the state's Public Health Goal (PHG) for perchlorate in drinking water is consistent with the findings of a recent report on the chemical by the National Academy of Sciences (NAS).

November 16, 2004: Update of the Thallium Public Health Goal

The Public Health Goal for thallium was updated in 2004.

November 5, 2004: Draft Technical Support Document on the Public Health Goal for Water Soluble Polychlorinated Biphenyls (PCBs)

OEHHA announces a public comment period for the draft Public Health Goal for water soluble polychlorinated biphenyls (PCBs) in drinking water.

July 23, 2004: Initiation of Risk Assessments for Chemicals in Drinking Water (2004)

OEHHA announced intention to initiate risk assessments in 2004 for the following chemicals: bromate, chlorite, haloacetic acids, and nitrosodimethylamine (NMDA). Additionally, OEHHA announced intention to update reviews for the following chemicals: cadmium, copper, glyphosate, lindane, mercury, methoxychlor, oxamyl, pentachlorophenol, thallium, and trichloroethylene.

July 2, 2004: Public Comment Period for Draft Public Health Goals for Radium-226 and -228, Strontium-90, and Tritium in Drinking Water

OEHHA announces a public comment period for the draft Public Health Goals for radium-226 and -228, strontium-90, and tritium in drinking water.