Sac Metro Air District's permitted sources are required to report emission information for various state and local purposes. The emission information helps state and local air agencies understand the type and quantity of pollution emitted. Information collected helps us protect the public from unhealthy air and obtain air quality goals. The different reporting requirements that permitted sources must follow are listed below.
Larger permitted sources and certain source types are required to report emissions of criteria pollutants and toxic pollutants that are regulated by their permit to Sac Metro Air District quarterly or annually depending on their permit conditions.
Sources that are required to submit quarterly or annual emission reports include the following:
Sources with a Title V Operating Permit
Synthetic Minor Sources
Soil Vapor Extraction Systems
Permitted sources that emit 10 tons per year (TPY) or greater of any one criteria pollutant (Stationary Point Sources) are required to submit their annual emissions or data needed to calculate their emissions on a survey form provided by the District. The annual emissions from each Stationary Point Source are reported individually to the State and then transmitted to EPA.
Permitted sources that emit below 10 TPY (Aggregate Point Sources) are surveyed approximately every 3 years. Their combined emissions are reported to the State as Area Source categories.
Assembly Bill 2588 (AB 2588) is a program that helps to determine the risk from air toxic emissions:
Assembly Bill 617, approved in 2017, requires the establishment of a uniform system of reporting criteria and toxic emissions. To achieve this mandate, the California Air Resources Board (CARB) approved the Criteria Pollutants and Toxic Air Contaminants Reporting regulation (CTR). The CTR requires major sources of air pollution, sources designated as high priority under the AB 2588 program and large greenhouse gas emitters to annually report their criteria and toxic emissions.
Details about the CTR are available on CARB's website (LINK).