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.

Reports, Notices, Documents

Mar 24, 1998: 1,4-Dioxane Action Level
An Action Level of 3 parts per billion (ppb) is developed for 1,4-dioxane in drinking water.
Jan 13, 1998: Public Comment Period for 19 Draft Technical Support Documents for Proposed Public Health Goals for 20 Chemicals in Drinking Water (1998)
OEHHA announces a public comment period for 19 draft technical support documents for Public Health Goals (PHGs) for the following chemicals: atrazine; bentazon; cadmium; chromium; 1,2-dibromo-3-chloropropane (DBCP); 1,2-dichloroethane; 1,1-dichloroethylene; 1,2-dichloropropane; 1,3-dichloropropene (Telone); endrin; heptachlor and heptachlor epoxide; g -hexachlorocyclohexane (lindane); hexachlorocyclopentadiene; inorganic mercury; methoxychlor; thallium; 1,2,4-trichlorobenzene; trichloroethylene; and toluene.
Dec 31, 1997: Technical Support Documents for Public Health Goals for 25 Chemicals in Drinking Water
OEHHA published technical support documents for Public Health Goals (PHGs) for 20 chemicals in drinking water.  These chemicals are: antimony, alachlor, benzo(a)pyrene, chlordane, copper, cyanide, dalapon, DEHP, dinoseb, endothall, ethylbenzene, FC-11, FC-113, fluoride, glyphosate, lead, nitrate and nitrite, oxamyl, pentachlorophenol, picloram, uranium (withdrawn June 29, 1998), xylene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, and 2,4-dichlorophenoxyacetic acid.
Nov 7, 1997: Announcement of Public Comment Period for 25 Draft Technical Support Documents for Proposed Public Health Goals for Chemicals in Drinking Water
OEHHA solicited external scientific peer review and public comments on 25 draft technical support documents for Public Health Goals (PHGs) for the following chemicals: alachlor, antimony, benzo[a]pyrene, chlordane, copper, cyanide, dalapon, 1,2-dichlorobenzene, 1,4-dichlorobenzene, 2,4-dichlorophenoxyacetic acid, diethylhexylphthalate, dinoseb, endothall, ethylbenzene, fluoride, glyphosate, lead, nitrate and nitrite (3 PHG values), oxamyl, pentachlorophenol, picloram, trichlorofluoromethane, trichlorotrifluoroethane, uranium and xylenes.
Sep 26, 1997: Public Workshop for Draft Public Health Goals for 25 Chemicals in Drinking Water
OEHHA announced a public workshop for the draft technical support documents for Public Health Goals for 25 chemicals in drinking water.  The chemicals are: antimony, benzo[a]pyrene, chlordane, cyanide, dalapon, 1,2-dichlorobenzene, 1,4-dichlorobenzene, dinoseb, endothall, ethylbenzene, trichlorofluoromethane, trichlorotrifluoroethane, uranium, alachlor, copper, diethylhexylphthalate, 2,4-dichlorophenoxyacetic acid, fluoride, glyphosate, lead, nitrate and nitrite (3 PHG values), oxamyl, pentachlorophenol, picloram, and xylenes.

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