Toxic Emissions Inventory Plan

Under AB 2588, facilities are required to prepare and submit a Toxic Emission Inventory Plan to air districts within 150 days of being notified. The plan should identify all sources of toxic emissions at the facility and provide a comprehensive and detailed description of the methods that will be used to quantify air releases of these substances. The plan must include quantification methods which will produce an accurate and comprehensive characterization of releases and must comply with all other applicable requirements in this regulation.

The AB 2588 Plan must include the following information:

Facility location and description.
A description of all devices operated routinely and predictable at the facility that emit air toxics. This includes District permitted equipment, permit-exempt equipment registration (PEER) equipment, non-permitted equipment, and non-permitted fugitive emission sources.
Listed substances expected to be emitted from each source.
The calculation methodology that will be used to estimate toxic emissions for each source.
Source testing plan (if applicable).
Process flow diagram characterizing the release of emissions for each source.
Facility maps identifying the location of the emitting sources, facility boundary, and nearest receptors.
Any additional supporting documentation (e.g., Safety Data sheets).

Please reference the Section VI of the EICG for a complete description of the elements that must be included in the plan. The District also has a plan template that facilities can use as a starting point when preparing their plan for District submittal and review.

Certain types of facilities and emitting sources are required to perform toxic source tests per the regulation (see EICG Appendix D). If the facility is required to perform a source test under the program, the District requires that a source test protocol be submitted and approved by the District before the test is performed.

Resources

CARB’s Emission Inventory Criteria and Guidelines (EICG) Regulation↗

District Toxic Emission Inventory Plan Template↗

District Policy APR 1965 Aggregation Methodology↗

District Approved Toxic Emission Speciation Profiles↗

CARB's California Air Toxics Emission Factor (CATEF) Database↗

CARB's 1989 Technical Guidance Document for EI Guidelines↗

EPA’s AP-42: Compilation of Air Emissions Factors ↗

Air Toxics Program