Category Archives: Chemical Contamination

Committee to Bridge the Gap’s Comments on DTSC’s Proposed Regulations for Toxicity Criteria for Human Health Risk Assessment

Re:  DTSC Reference Number R-2016-8 20 September 2017
CBG Toxicity Criteria Rule Comments. (pdf)
DTSC Toxicity Criteria Excel Sheet Comparison. (pdf)

Appropriate toxicity criteria for human health risk assessments are critical for protecting the public from toxic materials. The federal government establishes minimum levels of protection, a floor so to speak, and California policy has long required the use of California standards when more protective than the federal ones. Consistent with this, on 11 November 2016, DTSC proposed regulations, which would have required the use of the most protective toxicity criteria.

DTSC has now, however, backed off from …

DOE’s Draft EIS Violates Federal Law, DOE’s Written Agreement with California and Leaves Up to 94% of Contamination at SSFL Not Cleaned Up

On January 6, 2017 the Department of Energy (DOE) released its draft environmental impact statement (DEIS) for its proposed cleanup of Area IV of the Santa Susana Field Laboratory (SSFL), the site of a partial nuclear meltdown and numerous other radioactive and toxic chemical releases. In the DEIS, DOE has proposed three alternative cleanup plans. All three of DOE’s cleanup plans violate the legally binding agreement DOE signed with California in 2010. All three options call for leaving vast amounts of contamination at SSFL without being cleaned up, so it will continue to migrate offsite to people living nearby. One …