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2009 draft technical support document for the proposed Public Health Goal (PHG) for antimony in drinking water

Public workshop for the purpose of discussing the draft regulatory amendments and gathering input from interested parties concerning providing warnings to consumers for exposures to listed chemicals in foods purchased at retail stores.

OEHHA has provided a number of comments on the risk characterization methodology and conclusions on the draft RCD for Metam Sodium. These comments and our recommendations, as well as suggested clarifications, additions and corrections, are contained in this report.

This document establishes a PHG of 0.0007 parts per billion for the solvent 1,2,3-trichloropropane in drinking water.

Draft public health goal for hexavalent chromium in drinking water and announcement of public comment period and workshop.

OEHHA announces a public comment period and workshop for the draft Public Health Goal for hexavalent chromium in drinking water.

Adoption of changes to the Safe Use Determination regulations to delete existing language in subsection (a) providing that Safe Use Determinations are advisory only and replace it with language providing that the Safe Use Determinations shall have presumptive effect, increase the filing fee for a Safe Use Determination request from $500.00 to $1000.00 in subsection (d)(1), and to create in subsection (g) a time limit of sixty (60) days for submission of additional material requested by OEHHA.

This memorandum represents an update of the literature review and evaluation of the existing PHG for 1,2-dichlorobenzene.  Our re-evaluation supports the previous PHG derivation.

OEHHA released proposed revisions to its Technical Support Document for Cancer Potency Factors Appendix C - Use of Toxicity Equivalence Factors Scheme for Estimating Toxicity of Mixtures of Dioxin-like Chemicals to the public for comment.

Amsacrine, toxins derived from Fusarium moniliforme (Fusarium verticillioides) and zalcitabine are being added to the list as known to the state to cause cancer.  n-Butyl glycidyl ether, carbaryl, 2-chloropropionic acid, diglycidyl ether, 2‑ethylhexanoic acid, methyl n-butyl ketone, p,p'-oxybis(benzenesulfonyl hydrazide), phenylphosphine, 1,3,5-triglycidyl-s-triazinetrione are being added as known to the state to cause reproductive toxicity.  Additional endpoints are being added for chemicals that are already on the Proposition 65 list.