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Learn about the Air District's proposed draft regulation to reduce health risks from toxic emissions from existing local facilities.
The Air District is developing a proposed draft regulation to reduce health risks from toxic emissions from existing facilities.
Draft Regulation 11, Rule 18: Reduction of Risk from Air Toxic Emissions at Existing Facilities would improve air quality and reduce toxic emissions from facilities ranging in size from large-scale plants like factories and oil refineries to smaller operations like back-up generators and gas stations. The Air District estimates that hundreds of facilities throughout the Bay Area may be subject to the proposed rule, which would incorporate recently adopted risk management guidelines and health risk values from the California Office of Environmental Health Hazard Assessment.
Under draft Rule 11-18, Air District staff would conduct site-specific health risk screening analyses for all facilities that report toxic air contaminant emissions, and calculate health prioritization scores based on the amount of toxic air pollution emitted, the degree of toxicity of these pollutants, and the proximity of these facilities to local communities. The Air District would conduct health risk assessments for facilities found to have priority scores above a certain value.
All facilities found to have a potential health risk in excess of 10 in a million or an acute hazard index greater than 1.0 would be required to reduce their risk below 10 in a million and their hazard index below 1.0, or install Best Available Retrofit Control Technology for Toxic Pollutants on all significant sources of toxic emissions.
The Air District has released a Notice of Preparation and Initial Study(3 Mb PDF, 92 pgs, posted 10/14/16) for Rule 11-18 (together with Rule 12-16, which sets limits on facility-wide petroleum refining emissions). On November 14 and November 16, 2016, the Air District hosted scoping meetings at its Bay Area Metro Center Headquarters and Martinez City Hall, respectively, to discuss this document and solicit public comment.
Materials related to Rule 11-18, such as the draft staff report(571 Kb PDF, 47 pgs, revised 03/25/17), can be found on the Regulatory Workshops web page.
The Air District anticipates releasing proposed rule language, a staff report, a socioeconomic analysis, and the CEQA Environmental Impact Report in Spring 2017. The agency anticipates that a proposed final draft will be presented to the Air District's Board of Directors in May 2017.
Principal Air Quality Specialist, Technical Services
No Spare the Air Alert in Effect
Air Quality Widgets
Last Updated: 3/20/2017