BACT / TBACT Workbook

Notifying Permit Applicants of a Regulatory Requirement to Use BACT for Emergency Backup Engines greater than or equal to 1000 BHP
The Air District is notifying permit applicants of achieved-in-practice BACT for large emergency backup engines. This would potentially affect engine permit applications under Air District review by requiring engines meet EPA Tier 4 emissions standards. To view the 3/29/2021 webinar, slides, and FAQs, visit the Workshops and Events web page.

The Air District’s Best Available Control Technology and Best Available Control Technology for Toxics Workbook (PDF) is designed to provide guidance on the BACT(83 Kb PDF, 2 pgs, revised 06/09/15) and TBACT(83 Kb PDF, 2 pgs, revised 06/09/15) requirements for commonly permitted sources subject to New Source Review in the Bay Area.  Each source subject to these requirements in analyzed on a “case by case” basis to determine compliance with these requirements and not all cases are covered by the guidance.

This workbook serves as a guide for permit applicants, Air District engineers, and others interested in understanding emissions limits, control devices, and techniques needed to meet the BACT(83 Kb PDF, 2 pgs, revised 06/09/15) New Source Review Rule and TBACT(83 Kb PDF, 2 pgs, revised 06/09/15) New Source Review of Toxic Air Contaminants Rule.

Section 1: BACT/TBACT Policy and Implementation

• Introduction(88 Kb PDF, 3 pgs, revised 06/09/15)
• Definition of BACT and TBACT(83 Kb PDF, 2 pgs, revised 06/09/15)
• Policy and Implementation Procedure(115 Kb PDF, 6 pgs, revised 06/09/15)
• User's Guide to BACT/TBACT Workbook(84 Kb PDF, 2 pgs, revised 06/09/15)
• Figure 1: Using the Workbook: Step A(86 Kb PDF, 1 pg, revised 06/09/15)
• Figure 2: Using the Workbook: Step B(91 Kb PDF, 1 pg, revised 06/09/15)

Section 2: Combustion Sources

Boilers, Commercial, Industrial, Institutional

• Boiler, Rental: On-site < 6 consecutive months(94 Kb PDF, 1 pg, revised 12/22/20) 
• Boiler: 5 to <33.5 MMBtu/hr(19 Kb PDF, 2 pgs, revised 12/22/20) 
• Boiler: ≥33.5 to <50 MMBtu/hr(19 Kb PDF, 2 pgs, revised 12/22/20)
• Boiler: ≥50 MMBtu/hr (21 Kb PDF, 2 pgs, revised 12/22/20)
• Boiler, CO - Refinery (95 Kb PDF, 1 pg, revised 12/22/20)
• Boiler or Water Heater - Landfill or Digester Gas Fired(95 Kb PDF, 1 pg, revised 12/22/20)
• Boiler - Municipal Refuse Fired(94 Kb PDF, 1 pg, revised 12/22/20)
• Boiler - Wood Fired(94 Kb PDF, 1 pg, revised 12/22/20)

Internal Combustion Engines

• I. C. Engine - Compression Ignition, Prime > 50 hp(120 Kb PDF, 2 pgs, revised 12/22/20)
• I. C. Engine - Compression Ignition, Emergency > 50 hp and < 1000 hp(129 Kb PDF, 2 pgs, revised 12/22/20)
• I.C. Engine - Compression Ignition, Emergency >= 1000 hp(125 Kb PDF, 2 pgs, posted 12/22/20)
• I. C. Engine - Biogas Fired ≥ 50 hp(74 Kb PDF, 2 pgs, revised 12/22/20)
• I. C. Engine - Spark Ignition, Natural Gas Fired Rich Burn Engine(191 Kb PDF, 1 pg, revised 12/22/20)
• I. C. Engine - Spark Ignition, Natural Gas Fired Lean Burn Engine(190 Kb PDF, 1 pg, revised 12/22/20)
• I. C. Engine - Spark Ignition, Natural Gas Fired Emergency Engine(136 Kb PDF, 1 pg, revised 12/22/20)
• I. C. Engines - Spark Ignition, Alternative Fuels(95 Kb PDF, 1 pg, revised 12/22/20)

Process Heaters

• Heater - Refinery Process, Natural or induced Draft, <50 MMBtu/hr(98 Kb PDF, 2 pgs, revised 12/22/20)
• Heater - Refinery Process, Forced Draft, <50 MMBtu/hr(98 Kb PDF, 2 pgs, revised 12/22/20)
• Heater - Refinery Process, >50 MMBtu/hr(91 Kb PDF, 2 pgs, revised 12/22/20)

Gas Turbines

• Simple Cycle (< 2 .0 MW)(95 Kb PDF, 1 pg, revised 12/22/20)
• Simple Cycle (>= 2 MW and < 40 MW)(95 Kb PDF, 1 pg, revised 12/22/20)
• Simple Cycle (>= 40 MW)(96 Kb PDF, 1 pg, revised 12/22/20)
• Combined Cycle (>= 2 MW and < 40 MW)(95 Kb PDF, 1 pg, revised 12/22/20)
• Combined Cycle (>= 40 MW)(99 Kb PDF, 2 pgs, revised 12/22/20)
• Landfill Gas-Fired(95 Kb PDF, 1 pg, revised 12/22/20)

Steam Generators

• Steam Generator - Oil Field, 5 to <33.5 MMBtu/hr(95 Kb PDF, 1 pg, revised 12/22/20)
• Steam Generator - Oil Field, >=33.5 to <50 MMBtu/hr(95 Kb PDF, 1 pg, revised 12/22/20)
• Steam Generator - Oil Field, >=50 MMBtu/hr(95 Kb PDF, 1 pg, revised 12/22/20)

Cement Kilns

• Cement Kiln(94 Kb PDF, 1 pg, revised 12/22/20)

Section 3: Petroleum Industry

Bulk Loading Facilities

• Marine, Loading(94 Kb PDF, 1 pg, revised 06/12/15)
• Tank Truck & Rail Car Bulk Loading (except Gasoline Bulk Terminals)(94 Kb PDF, 1 pg, revised 06/12/15)
• Tank Truck & Rail Car Bulk Loading - Gasoline Bulk Terminals(93 Kb PDF, 1 pg, revised 06/12/15)

Gasoline Dispensing Facilities

•  Gasoline Dispensing Facility(94 Kb PDF, 1 pg, revised 06/12/15)

Oil-water Separators

Water Treating - Oil/Water Separator

•  < 250 Gallons/min(94 Kb PDF, 1 pg, revised 06/12/15)
•  >= 250 Gallons/min(94 Kb PDF, 1 pg, revised 06/12/15)
• Water Treating - Sour Water Stripping(94 Kb PDF, 1 pg, revised 06/12/15)

Petroleum Refinery Fugitive Emissions

• Flare - Refinery(98 Kb PDF, 2 pgs, revised 06/12/15)
• Flanges(94 Kb PDF, 1 pg, revised 06/12/15)
• Pressure Relief Valves, Emergency - Process Units(95 Kb PDF, 1 pg, revised 06/12/15)
• Process Valves(95 Kb PDF, 1 pg, revised 06/12/15)
• Pumps(97 Kb PDF, 2 pgs, revised 06/12/15)
• Compressors(97 Kb PDF, 2 pgs, revised 06/12/15)

Sulfur Recovery Plant

• Sulfur Recovery Plant(94 Kb PDF, 1 pg, revised 06/12/15)

Section 4: Organic Liquid Storage Tanks

Orgainc Liquid Storage Tanks

Storage Tanks (20,000 gallons or greater)
Storage Tanks < 20,000 gallon capacity

• Storage Tanks - External Floating Roof, Organic Liquids(13 Kb PDF, 1 pg, revised 06/12/15)
• Storage Tanks - Fixed Roof, Organic Liquids, <20,000 gal(94 Kb PDF, 1 pg, revised 06/12/15)
• Storage Tanks - Fixed Roof, Organic Liquids, >=20,000 gal(94 Kb PDF, 1 pg, revised 06/12/15)
• Storage Tanks - Internal Floating Roof, Organic Liquids(95 Kb PDF, 1 pg, revised 06/12/15)

Section 5: Coating Sources

Aerospace Assembly & Component Coating Ops.

Spray Booth - Coating of Aerospace Components

• <25 lb/day Emissions (Uncontrolled)(95 Kb PDF, 1 pg, revised 06/12/15)
• >=25 lb/day Emissions (Uncontrolled)(96 Kb PDF, 2 pgs, revised 06/12/15)

Spray Booth - Coating of Flatwood Paneling & Wood Flat Stock

• <50 lb/day Emissions (Uncontrolled)(96 Kb PDF, 1 pg, revised 06/12/15)
• >=50 lb/day Emissions (Uncontrolled)(96 Kb PDF, 2 pgs, revised 06/12/15)

Spray Booth - Coating of Wood Products

• Spray Booth - Coating of Wood Products(97 Kb PDF, 2 pgs, revised 06/12/15)

Graphic Arts Printing and Coating Operations

• Flexographic Printing Line(97 Kb PDF, 2 pgs, revised 06/12/15)
• Lithographic Offset Printing - Heatset(99 Kb PDF, 2 pgs, revised 06/12/15)
• Lithographic Offset Printing - Non-Heatset(99 Kb PDF, 2 pgs, revised 06/12/15)
• Rotogravure Printing - Publication and Packaging(95 Kb PDF, 1 pg, revised 06/12/15)
• Screen Printing and Drying (96 Kb PDF, 2 pgs, revised 06/12/15)

Metal Container, Closure, and Coil Coating

• Metal Container, Closure, and Coil Coating Operation(95 Kb PDF, 1 pg, revised 06/12/15)

Misc. Metal Parts and Products coating

Spray Booth - Coating of Misc. Metal Parts and Products

• <50 lb/day Emissions (Uncontrolled)(95 Kb PDF, 1 pg, revised 06/12/15)
• >=50 lb/day Emissions (Uncontrolled)(96 Kb PDF, 2 pgs, revised 06/12/15)

Misc. Solvent & Surface Coating Operations

Flow Coater, Dip Tank and Roller Coater

• <36 lb/day Emissions (Uncontrolled)(95 Kb PDF, 1 pg, revised 06/12/15)
• >=36 lb/day Emissions (Uncontrolled)(97 Kb PDF, 2 pgs, revised 06/12/15)

Motor Vehicle and Mobile Equipment Coating

Spray Booth - Coating of Motor Vehicle & Mobile Equipment,Rework or Bodyshop

• <40 lb/day Emissions (Uncontrolled)(96 Kb PDF, 1 pg, revised 06/12/15)
• >=40 lb/day Emissions (Uncontrolled)(97 Kb PDF, 2 pgs, revised 06/12/15)

Ovens (Surface Coating)

Paper, Fabric, and film Coating

Plastic Parts and Products Coating
Spray Booth - Coating of Misc. Plastic Parts and Products

• <50 lb/day Emissions (Uncontrolled)(96 Kb PDF, 1 pg, revised 06/12/15)
• >=50 lb/day Emissions (Uncontrolled)(96 Kb PDF, 2 pgs, revised 06/12/15)

Spray Booth - Coating of Misc. Plastic Parts and Products

Motor Vehicle Assembly Plant Coating

Spray Booth - Coating of Motor Vehicles, Assembly Plant

• Spray Booth (Manual Zones)(95 Kb PDF, 1 pg, revised 06/12/15)
• Spray Booth (Automatic Zones)(97 Kb PDF, 2 pgs, revised 06/12/15)
• Oven (Topcoat and/or Primer)(96 Kb PDF, 2 pgs, revised 06/12/15)
• Oven (Sealer and/or Elpo)(96 Kb PDF, 2 pgs, revised 06/12/15)

Section 6: Solvent Cleaning Sources

Cold Solvent Cleanin

• Degreaser - Cold Solvent Tank(95 Kb PDF, 1 pg, revised 06/12/15)

Vapor Solvent Cleaning

• Degreaser - Film Cleaning Machine(94 Kb PDF, 1 pg, revised 06/12/15)
• Degreaser - Solvent Spray Booth(94 Kb PDF, 1 pg, revised 06/12/15)
• Degreaser - Vapor, Conveyorized(96 Kb PDF, 2 pgs, revised 06/12/15)
• Degreaser - Vapor, Open Top(97 Kb PDF, 2 pgs, revised 06/12/15)

Wipe Cleaning

• Wipe Cleaning Operation(96 Kb PDF, 2 pgs, revised 06/12/15)
• Solvent Reclamation(94 Kb PDF, 1 pg, revised 06/12/15)

Section 7: Electronic and Semiconductor Industry

Circuit Board Manufacturing

• Circuit Board Etcher - Batch Immersion Type, Subtractive Process(93 Kb PDF, 1 pg, revised 06/12/15)
• Circuit Board Etcher _ Conveyorized Spray Type, Subtractive Process(93 Kb PDF, 1 pg, revised 06/12/15)

Electronic Assembly & Wave Soldering Operations

• Wave Solder Operation - Flux Application and Finger Cleaning (97 Kb PDF, 2 pgs, revised 06/12/15)

Flexible and Rigid Disk Manufacturing

Magnetic Media Manufacturing - Disc Coating, Oxide

• <15 lb/day Emissions (Uncontrolled)(94 Kb PDF, 1 pg, revised 06/12/15)
• >=15 lb/day Emissions (Uncontrolled)(94 Kb PDF, 1 pg, revised 06/12/15)

Magnetic Media Manufacturing - Disc Coating, Lubricant

• Dip Luber(95 Kb PDF, 1 pg, revised 06/12/15)
• Gravity Drop (Drain) Luber(96 Kb PDF, 2 pgs, revised 06/12/15)
• Spray Luber(94 Kb PDF, 1 pg, revised 06/12/15)

Magnetic Media Manufacturing - Disc Polishing/Texturing

• <22 lb/day Emissions (Uncontrolled)(94 Kb PDF, 1 pg, revised 06/12/15)
• >=22 lb/day Emissions (Uncontrolled)(94 Kb PDF, 1 pg, revised 06/12/15)

Semiconductor Manufacturing Operations

• Semiconductor Fab - Photoresist Operations
  (95 Kb PDF, 1 pg, revised 06/12/15)
• Semiconductor Fab - Solvent Cleaning Stations(96 Kb PDF, 2 pgs, revised 06/12/15)
• Semiconductor Fab - Siliconizing Reactors,Furnace Chambers, Vapor Deposition(94 Kb PDF, 1 pg, revised 06/12/15)

Section 8: Waste Processing Industry

Landfills

• Flare - Digester Gas or Landfill Gas from Non-Hazardous Waste Landfill(94 Kb PDF, 1 pg, revised 06/12/15)
• Flare - Digester Gas or Landfill Gas from Hazardous Waste Landfill(94 Kb PDF, 1 pg, revised 06/12/15)
• Landfill Gas Gathering System(93 Kb PDF, 1 pg, revised 06/12/15)
• Gas Turbine - Landfill Gas-Fired(94 Kb PDF, 1 pg, revised 06/12/15)

Organic Waste Processing

• Composting(382 Kb PDF, 1 pg, posted 08/18/16)

Sewage Treatment Facilities Works (POTWs)

• Headworks and Primary Treatment(94 Kb PDF, 1 pg, revised 06/12/15)
• Conventional Air Activated Sludge(94 Kb PDF, 1 pg, revised 06/12/15)
• High Purity Oxygen Activated Sludge(94 Kb PDF, 1 pg, revised 06/12/15)
• Secondary Clarifiers and Tertiary Treatment(94 Kb PDF, 1 pg, revised 06/12/15)
• Solids Handling Equipment(94 Kb PDF, 1 pg, revised 06/12/15)
• Digesters and Sludge Holding Tanks(94 Kb PDF, 1 pg, revised 06/12/15)

Section 9: Soil/Water Remediation Sources

Airstripping

• Air Stripper - Ground Water Treatment(96 Kb PDF, 2 pgs, revised 06/12/15)

Soil Vapor Extraction

• Soil Vapor Extraction(96 Kb PDF, 2 pgs, revised 06/12/15)

Section 10: Toxic Sources

Chrome Plating

• Chrome Plating - Decorative Chrome
  (93 Kb PDF, 1 pg, revised 06/12/15)

Chrome Plating - Hard Chrome

• Rectifier throughput 0 to 6,053,333^amp-hr/yr(94 Kb PDF, 1 pg, revised 06/12/15)
• Rectifier throughput 6,053,333 to 151,333,333^amp-hr/yr(95 Kb PDF, 1 pg, revised 06/12/15)
• Rectifier throughput >= 151,333,333^amp-hr/yr(95 Kb PDF, 1 pg, revised 06/12/15)

Ethylene Oxide Sterilizers

• Ethylene Oxide Sterilization (95 Kb PDF, 1 pg, revised 06/12/15)

Petroleum Solvent Drycleaning

• Drycleaner - Perchloroethylene
  (95 Kb PDF, 1 pg, revised 06/12/15)
• Drycleaner - Petroleum Solvent(94 Kb PDF, 1 pg, revised 06/12/15)

Synthetic Solvent Drycleaning

• Drycleaner - Valclene & Other Synthetic Solvents(95 Kb PDF, 1 pg, revised 06/12/15)

Incinerators

Hazardous Waste Incineration
Incinerator - Infectious Waste

• < 300 lb/hr(94 Kb PDF, 1 pg, revised 06/12/15)
• >= 300 lb/hr(95 Kb PDF, 1 pg, revised 06/12/15)

Incinerator - Non-Infectious Waste

• < 300 lb/hr
  (95 Kb PDF, 1 pg, revised 06/12/15)
• >= 300 lb/hr to < 750 hr(95 Kb PDF, 1 pg, revised 06/12/15)
• >= 750 lb/hr(95 Kb PDF, 1 pg, revised 06/12/15)

Section 11: Miscellaneous Sources

Abrasive Blasting

• Abrasive Blasting - Enclosed (93 Kb PDF, 1 pg, revised 06/12/15)

Coffee Roaster

• Coffee Roasting < 110,000 Btu/hr(95 Kb PDF, 1 pg, revised 06/12/15)
• Coffee Roasting 110,000 Btu/hr to 3.5 MM Btu/hr(94 Kb PDF, 1 pg, revised 06/12/15)
• Coffee Roasting Handling Equipment < 1,590 lb/hr(94 Kb PDF, 1 pg, revised 06/12/15)
• Coffee Roasting Handling Equipment >= 1,590 lb/hr(94 Kb PDF, 1 pg, revised 06/12/15)

Crematories

• Crematory(76 Kb PDF, 1 pg, revised 06/12/15)

Crushing and Grinding

• Rock - Aggregate Processing(94 Kb PDF, 1 pg, revised 06/12/15)
• Solid Material Handling - Dry(94 Kb PDF, 1 pg, revised 06/12/15)
• Solid Material Handling - Wet(93 Kb PDF, 1 pg, revised 06/12/15)
• Solid Material Storage - Enclosed(93 Kb PDF, 1 pg, revised 06/12/15)
• Solid Material Storage - Open(93 Kb PDF, 1 pg, revised 06/12/15)
• Wood Processing Equipment(93 Kb PDF, 1 pg, revised 06/12/15)

Concrete Batch Plant

• < 5 cubic yards per batch(94 Kb PDF, 1 pg, revised 06/12/15)
• >= 5 cubic yards per batch(81 Kb PDF, 2 pgs, posted 07/29/21)

Miscellaneous Operations

• Asphalt Batch Plant - Material Handling(94 Kb PDF, 1 pg, revised 06/12/15)
• Asphalt (Hot Mix) Batch Mix Facilities(98 Kb PDF, 2 pgs, revised 06/12/15)
• Asphalt (Hot Mix) Drum Mix Facilities(96 Kb PDF, 1 pg, revised 06/12/15)
• Asphalt (Hot Mix) Drum and Batch Mix Facilities, Asphalt Material Handling (Conveyors and Storage Silos; and Loadout Operations)(305 Kb PDF, 2 pgs, revised 06/12/15)
• Asphalt Roofing Line(94 Kb PDF, 1 pg, revised 06/12/15)
• Asphalt Storage Tank(93 Kb PDF, 1 pg, revised 06/12/15)
• Ball Mill(93 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Cement - Ship Unloading(93 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Material - Ship Loading (Non-White (Wet) Commodities)(94 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Material - Ship Loading (White (Dry) Commodities)(94 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Solid Material Ship Unloading - Except Cement(93 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Solid Material Storage - Non-White (Wet) Commodities(94 Kb PDF, 1 pg, revised 06/12/15)
• Bulk Solid Material Storage - White (Dry) Commodities(94 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Manufacturing - Reactor(93 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Manufacturing - Rotary Dryer(94 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Manufacturing - Spray Dryer(93 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Regeneration - Fluidized Catalyst Cracking Unit(94 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Regeneration - Hydrocarbon Removal(94 Kb PDF, 1 pg, revised 06/12/15)
• Catalyst Regeneration and Manufacturing - Calcining(87 Kb PDF, 1 pg, revised 06/12/15)
• Meat Broiler and Barbecue Oven(88 Kb PDF, 1 pg, revised 06/12/15)
• Smokehouse(88 Kb PDF, 1 pg, revised 06/12/15)

Polystyrene Foam Manufacturing

• Polystyrene Foam Sheet for Food Packaging(86 Kb PDF, 1 pg, revised 06/12/15)

Portable Equipment

Resin Manufacturing

• Polyester Resin Operations - Molding and Casting(88 Kb PDF, 1 pg, revised 06/12/15)
• Polyester Resin Operations - Hand and Spray Layup(88 Kb PDF, 1 pg, revised 06/12/15)
• Polyester Resin Operations - Panel Manufacturing(90 Kb PDF, 2 pgs, revised 06/12/15)
• Polyester Resin Operations - Pultrusion(88 Kb PDF, 1 pg, revised 06/12/15)

Appendices

• Appendix A - Glossary(82 Kb PDF, 2 pgs, revised 06/12/15)
• Appendix B1 - Toxics Risk Screening Levels - Carcinogenic, See Reg 2-5
• Appendix B2 - Toxics Risk Screening Levels - Non-carcinogenic, See Reg 2-5
• Appendix C1 -  Cost-Effectiveness Calculations: NOx(95 Kb PDF, 3 pgs, revised 06/12/15)
• Table C1-1(158 Kb PDF, 2 pgs, revised 06/12/15)
• Table C1-2(231 Kb PDF, 3 pgs, revised 06/12/15)
• Appendix C2 -  Cost-Effectiveness Calculations: POC(81 Kb PDF, 1 pg, revised 06/12/15)
• Figure C2-1(101 Kb PDF, 2 pgs, revised 06/12/15)
• Appendix D - References(82 Kb PDF, 1 pg, revised 06/12/15)