Amendments to the BACT Guidelines are proposed that would update the Overview, plus Parts A, B, C, and D to maintain consistency with recent changes to South Coast AQMD rules and regulations and state requirements.
The following amendments are proposed: 1) update the Overview to change the name of the division overseeing the BACT Guidelines from “Science and Technology Advancement” to “Engineering and Permitting” in accordance with Governing Board direction; 2) update the hyperlink to the list of current BACT Scientific Review committee (SRC) members in the Overview; 3) add a section in the Overview, Part A – Policy and Procedures for Major Polluting Facilities, and Part C – Policy and Procedures for Non-Major Polluting Facilities, to address the limited BACT exemption in Rule 1304 – Exemptions, which is applicable to new or modified permit units located at any facility currently or formerly subject to Regulation XX – Regional Clean Air Incentives Market (RECLAIM), for emission increases of particulate matter sized 10 microns or less (PM10) and sulfur oxides (SOx) associated with the installation or modification of add-on air pollution control equipment for controlling nitrogen oxide (NOx) emissions to comply with NOx Best Available Retrofit Control Technology (BARCT) emission limits.
The following amendments to Part B – Lowest Achievable Emission Rate (LAER) Determinations for Major Polluting Facilities, are proposed: 1) revise Section I – South Coast AQMD LAER/BACT Determinations, to add one new listing for Internal Combustion (I.C.) Engine– Stationary, Non-Emergency with Selective Catalytic Reduction (SCR), Natural Gas (NG) Fired, and to update three listings for: a) Boiler, Fire-tube, NG Fired less than (<) 20 million British Thermal Unit per hour (mmBTU/hr), b) Rotary Dryer-Aggregate Facility, NG Fired, and c) Roller Coater – Paper and Film, with Regenerative Thermal Oxidizer (RTO) for Volatile Organic Compound (VOC) Control; and 2) revise Section II – Other LAER/BACT Determinations, to add one new listing for Fumigation - Methyl Bromide (CH3Br) Fumigation Chamber greater than or equal to (=) 100,000 pounds (lbs) of CH3Br per year, and to update one listing for I.C. Engine-Compression Ignition = 1,000 brake horsepower (BHP) - Stationary Emergency including Non-Agricultural and Non-Direct Drive Fire Pump.
In addition, an amendment to Part C is proposed that would make the Maximum Cost-Effectiveness Values in Table 5 consistent with the third quarter 2021 Marshall and Swift equipment index in accordance with BACT Guidelines policy.
The following amendments to Part D – BACT Determinations for Non-Major Polluting Facilities, are proposed that would reflect equipment and processes which have been achieved in practice and to maintain consistency with recent changes to South Coast AQMD rules and state requirements by: 1) adding one new listing for I.C. Engine– Stationary, Non-Emergency, Electrical with SCR, NG Fired; and 2) updating four listings for: a) Composting, b) I.C. Engine, Stationary, Emergency, c) Open Process Tanks: Chemical Milling (Etching) and Plating, and d) Printing (Graphic Arts).