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September 2010 proposed amendments to Sections 25801 and 25803 of the California Code of Regulations, Title 27. These regulations set out the procedures and criteria for determining an exposure level where there would be no observable effect.

Announcement of a September 21st and 22nd, 2010 CIC meeting.  The committee will consider 1,3-Dichloro-2-propanol (1,3-DCP), 3-Monochloropropane-1,2-diol (3-MCPD) and prioritization of 27 chemicals.

Peer-reviewed comments on the draft Public Health Goal for hexavalent chromium have been received and are available.

The PHG for benzo(a)pyrene is established at 0.007 parts per billion (ppb), based on carcinogenic effects in rats and mice. The PHG for methoxychlor is established at 0.09 ppb, based on effects in male offspring of female mice treated with methoxychlor during pregnancy. The PHG for TCDD is established at 0.00005 parts per trillion (ppt), based on tumors in multiple sites in female rats.

Second extension of the public comment period related to OEHHA’s intent to list S,S,S-tributyl Phosphorotrithioate (Tribufos, DEF) under Proposition 65 as a chemical known to the state to cause cancer.

OEHHA announces a second public comment period for the draft Public Health goals for trihalomethanes (THMs) in drinking water.

 September 2, 2010 seventh CIPA meeting

Meeting materials for the seventh meeting of the cumulative impacts and precautionary approaches (CIPA) workgroup.

Notice of intent to list S,S,S-tributyl phosphorotrithioate as known to the state to cause cancer under the Safe Drinking Water and Toxic Enforcement Act of 1986.

Notice of adoption of the No Significant Risk Levels (NSRLs) for the chemicals p-chloroaniline and p-chloroaniline hydrochloride and amendment to Title 27, California Code of Regulations, Section 25705(b) (27 CCR Section 25705(b) effective August 12, 2010.