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 Water - Public Health Goals (PHGs)

Public Workshop: Discussion of Draft Technical Support Documents for Proposed Public Health Goals for 12 Chemicals In Drinking Water

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The Office of Environmental Health Hazard Assessment (OEHHA) of the California Environmental Protection Agency (Cal/EPA) announces a public workshop to discuss the scientific basis and recommendations in 12 draft technical support documents for Public Health Goals (PHGs) for chemicals in drinking water. This one-day workshop will be held November 5, 1999 at the auditorium in the Elihu Harris Building, 1515 Clay Street, First Floor, Oakland, California 94612. The workshop will begin at 9:30 a.m. and will last until all business for the day is concluded or 4:30 p.m. OEHHA follows the requirements set forth in Health and Safety Code Section 57003(a) for this workshop and public input. To facilitate discussion at the workshop, OEHHA is also providing the draft documents for preview. These are posted on the OEHHA web site.

PHGs proposed for the following 12 chemicals will be discussed at the workshop: aluminum, benzene, carbofuran, carbon tetrachloride, dichloromethane, diquat, nickel, simazine, tetrachloroethylene, thiobencarb, uranium, and vinyl chloride. The workshop is planned to encourage a dialogue between OEHHA scientists and the public, to discuss the PHG recommendations and to receive comments. Following the workshop, OEHHA will revise the documents as appropriate, and make them available for a 30-day public review and scientific comment period. This second review and comment period will be published in the California Regulatory Notice Register and posted on the OEHHA web site.

The PHG technical support documents provide information on the health effects from contaminants in drinking water. PHGs are levels of drinking water contaminants at which adverse health effects are not expected to occur from a lifetime of exposure. The California Safe Drinking Water Act of 1996 (Health and Safety Code Section 116365) requires OEHHA to adopt PHGs based exclusively on public health considerations. PHGs adopted by OEHHA will be considered by the California Department of Health Services in establishing drinking water standards (State Maximum Contaminant Levels, or MCLs).

Printed copies may be obtained for a fee from:

Instant Copying and Laser Printing
2015 Shattuck Avenue
Berkeley, California 94720
Phone: (510) 704-9700

Fax : (510) 704-9970

Oral and written comments received at the workshop will be considered during revision of the documents. Written comments must be received at OEHHA by 5:00 p.m. November 5, 1999, to be considered during the revision of the documents. If you would like to receive further information on this workshop or have questions, please contact our office at (510) 622-3170 or the address below. Written comments should be addressed to:

Dr. Yi Wang
Pesticide and Environmental Toxicology Section
Office of Environmental Health Hazard Assessment
California Environmental Protection Agency
1515 Clay Street, 16th Floor
Oakland, California 94612

FAX: (510) 622-3218


Click on the hyperlinks below to either view or download the documents.

You will need the FREE program Acrobat Reader to view or print PDF files. 

Go to Adobe download site

Notice! All documents have been finalized. Follow this link to the final documents

Download a copy of this notice.

Download the draft document for Aluminum

View the draft summary for Aluminum

Final document available. Follow this link to view the Final Technical Support Document for Benzene

View the draft summary for Carbofuran

Download the draft document for Carbon tetrachloride

View the draft summary for Carbon tetrachloride

Download the draft document for Dichloromethane

View the draft summary for Dichloromethane

Download the draft document for Diquat

View the draft summary for Diquat

Download the draft document for Nickel

View the draft summary for Nickel

Download the draft document for Simazine

View the draft summary for Simazine

Download the draft document for Tetrachloroethylene

View the draft summary for Tetrachloroethylene

Download the draft document for Thiobencarb

View the draft summary for Thiobencarb

Download the draft document for Uranium

View the draft summary for Uranium

Download the draft document for Vinyl chloride

View the draft summary for Vinyl Chloride


For technical assistance or comments, please contact our Web mistress

Last Updated October 8, 1999




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List of All Public Health Goals

Notification Levels for Chemicals in Drinking Water

Public Health Goals

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Current Proposition 65 List of Chemicals

Toxicity Criteria Database