Proposed Regulation 12, Rule 11 would require refiners to:

• Continuously monitor vent gas flow for each flare;
• Monitor vent gas composition either by (1) taking samples manually or with an auto sampler, or by (2) using continuous analyzers;
• Submit monthly reports that include vent gas flow and composition, pilot and purge gas flow and composition, estimates of hydrocarbon and sulfur emissions, descriptions of all flaring (duration, time, cause, measures to reduce or eliminate), and explanations for any monitor downtime;
• Monitor flare operation by video camera and record flare images.

The rule is expected to lead to much more accurate estimates of flare emissions and will provide information that is likely to lead to reductions in flaring.

The District has prepared a draft initial study analyzing the environmental impacts of the proposed rule. Based on the draft document, no adverse impacts from the rule are expected.

The District recently held three community meetings to explain rule concepts. The District also circulated a draft of the rule (dated 3/25/03). The District has now revised that draft and is circulating the revised draft for written comment.

Proposed Regulation 12, Rule 11, a strikethrough/underline copy showing changes since the 3/25/03 draft, a draft staff report, the draft initial study, and this notice are available on the District’s website at www.baaqmd.gov. Written comments should be directed to Alex Ezersky, BAAQMD, 939 Ellis St., San Francisco 94109, or by email to aezersky@baaqmd.gov. To be considered for incorporation in a rule draft for public hearing, comments must be received by 5:00 p.m. on Thursday, April 17, 2003. Please direct questions to Alex Ezersky at (415) 749-4650.