Proposed Amendments to 'New Source Review of Toxic Air Contaminants'

The Bay Area Air Quality Management District (BAAQMD) is accepting comments through this Thursday, December 3, on proposed amendments to Regulation 2, Rule 5, New Source Review of Toxic Air Contaminants and the Health Risk Screening Analysis (HRSA) Guidelines for this rule.

Regulation 2, Rule 5 prevents significant increases in health risks resulting from new and modified sources of toxic air contaminants based on preconstruction permit review. The program also reduces existing health risks by requiring updated control requirements when older, more highly polluting sources are modified or replaced.

The proposed amendments incorporate revised California Office of Environmental Health Hazard Assessment (OEHHA) health risk assessment methodologies for proposed projects throughout the district. The proposed amendments revise Table 2-5-1 to incorporate changes to risk assessment guidelines that have been adopted by OEHHA as of June 1, 2009. These revisions include cancer potency factors, RELs, and emission trigger levels. The proposed amendments contain a toxics tracking provision for each Priority Community under the BAAQMD’s Community Air Risk Evaluation program. Under this provision, the BAAQMD will track and report emissions changes of toxic air contaminants from permitted stationary sources, mobile sources, and area-wide source over time.

On Wednesday, December 16, 2009, the BAAQMD Board of Directors will conduct a public hearing to consider the proposed amendments and to consider adoption of a CEQA Negative Declaration. The hearing will be held in the 7th floor Board Room of the BAAQMD office, 939 Ellis Street, San Francisco, commencing at 9:45 am.