Notices
Legal notices and other information about Public Health Goals, Notification Levels and other water-related content.
Water-related Notices
Jul 29, 2016: Second Public Comment Period - Draft Technical Support Document on the Proposed Updates of Public Health Goals for Carbofuran, Diquat, Endrin, Picloram, and Thiobencarb in Drinking Water
2nd public comment period proposed updated PHGs for Carbofuran (0.7 ppb), Diquat (6 ppb), Endrin (0.3 ppb), Picloram (166 ppb), and Thiobencarb (42 ppb) in drinking water.
Jul 22, 2016: Public Comment Period - Draft Public Health Goal for Antimony in Drinking Water
Announcement of the second public comment period on the draft Public Health Goal (PHG) for antimony in drinking water. The draft PHG would revise the PHG from 20 ppb to 1 ppb.
Jul 22, 2016: Draft Technical Support Document on the Proposed Update of the Public Health Goal for Antimony in Drinking Water
2nd public comment period on the draft Public Health Goal (PHG) for antimony in drinking water. The draft PHG would revise the PHG from 20 ppb to 1 ppb.
Jan 29, 2016: Health Risk Information for Public Health Goal Exceedance Reports
OEHHA's 2016 report of water contaminants that exceed Public Health Goals.
Sep 28, 2015: Public Health Goal Workshop for Carbofuran, Diquat, Endrin, Picloram, and Thiobencarb
Workshop to discuss the scientific basis of the proposed PHG updates outlined in the Draft Technical Support Document for the Public Health Goals for Carbofuran, Diquat, Endrin, Picloram, and...
Aug 14, 2015: Draft Technical Support Document for the Public Health Goals for Carbofuran, Diquat, Endrin, Picloram, and Thiobencarb
Draft technical support document on proposed updates of the public health goals (PHGs) for carbofuran, diquat, endrin, picloram, and thiobencarb.
Aug 14, 2015: Comment Period on the Draft PHG updates for Carbofuran, Diquat, Endrin, Picloram, and Thiobencarb
September 28, 2015 workshop to discuss the draft technical support document for proposed updates of the Public Health Goals (PHGs) for carbofuran, diquat, endrin, picloram, and thiobencarb in...
Feb 27, 2015: Final Technical Support Document on the Public Health Goal for Perchlorate in Drinking Water
The updated PHG for perchlorate is one part-per-billion (1 ppb) based on the inhibition of iodide uptake into the thyroid gland and the consequent disruption of thyroid hormone production.
Feb 27, 2015: OEHHA Adopts Updated Public Health Goal for Perchlorate
OEHHA has adopted an updated public health goal (PHG) of 1 part per billion (ppb) for perchlorate in drinking water. This PHG updates the 2004 perchlorate value of 6 ppb. Perchlorate is known to...
Feb 2, 2015: Public Health Protective Concentration for para-Chlorobenzene Sulfonic Acid
The 2015 public health protective concentration is 3 parts per million (ppm) for the chemical para-chlorobenzene sulfonic acid (pCBSA) in drinking water.
Oct 17, 2014: Initiation of Risk Assessments for Chemicals in Drinking Water (2014)
Initiation of reviews for nine chemicals: Carbofuran, Diquat, Endrin, Radium-226, Radium-228, Strontium-90, Thiobencarb, Toxaphene and Tritium.
Apr 24, 2014: Final Technical Support Document on Public Health Goals for: Chlorobenzene, Endothall, Hexachlorocyclopentadiene, Silvex, and Trichlorofluoromethane in Drinking Water
The Public Health Goals for chlorobenzene, endothall, hexachlorocyclopentadiene, silvex, and trichlorotrifluoromethane were finalized and made available.
Mar 7, 2014: Updated Public Health Goals for Chlorobenzene, Endothall, Hexachlorocyclopentadiene, Silvex, and Trichlorofluoromethane
Updated second draft Public Health Goals for chlorobenzene, endothall, hexachlorocyclopentadiene, silvex, and trichlorofluoromethane are now available.
Dec 7, 2013: Draft Technical Support Document on Proposed Public Health Goal for Perchlorate in Drinking Water
OEHHA announced release of the revised draft Public Health Goal for perchlorate in drinking water, and public comment period.
Nov 1, 2013: Draft Public Health Goals for Chlorobenzene, Endothall, Hexachlorocyclopentadiene, Silvex, and Trichlorofluoromethane
Draft Public Health Goals for five chemicals are now available for public comment. These chemicals are: chlorobenzene, endothall, hexachlorocyclopentadiene, silvex, and trichlorofluoromethane.
Feb 25, 2013: PHG Exceedance Reports 2013
OEHHA's 2013 report of water contaminants that exceed Public Health Goals is available.
Sep 25, 2012: Initiation of Process to Update Public Health Goals for Three Chemicals in Drinking Water (2012)
OEHHA announced the initiation of updating Public Health Goals for three chemicals in drinking water: chlorobenzene, 1,1-dichloroethane, and trichloroethylene.
Nov 10, 2011: External Peer Review of the Draft Public Health Goal for Perchlorate in Drinking Water
OEHHA posted the external peer review comments on the draft Public Health Goal for perchlorate in drinking water.
Jul 29, 2011: Final Technical Support Document on Public Health Goal for Hexavalent Chromium in Drinking Water
The PHG for hexavalent chromium is established at 0.02 parts per billion (ppb). The health-protective level is based on avoidance of potential carcinogenic effects.
Jul 27, 2011: OEHHA Adopts First-in-the-Nation Public Health Goal For Hexavalent Chromium in Drinking Water
The PHG for chromium 6 reflects research documenting that young children and other sensitive subpopulations are more susceptible than the general population to health risks from exposure to...