At the Western Regional Symposium – Air Quality & GHG Credits

March 26, 2025

At the SWANA Western Regional Symposium

Current State of the Regulation of Composting Facilities under Air Quality Programs with Pat Sullivan

Composting facilities are becoming increasingly regulated across the country, particularly for air quality permitting requirements. It is important to know where these requirements stand in the various jurisdictions in the U.S., so facility developers can properly plan any new facilities or expansions.  Further, estimating air emissions is an integral part of the air permitting process, and many of the emission factors currently in use, and being prescribed regulatory agencies, are dated and based solely on data from open windrow composting.

The proposed presentation would include a survey of how compost facility air permitting is presently handled in various states and local jurisdictions across the country with focus on the western U.S.  The types of information to be covered would include whether air permits are required and under what circumstances, how emissions are regulated and whether they are considered fugitive or not, how ancillary equipment is permitted (e.g., grinders, windrow turners, etc.), whether controls are required and what levels of control are deemed necessary, what is best available control technology (BACT) for composting, and if the agency has any specific rules for composting.  The presentation will include a summary of the current state of emission factors for composting.

As part of the presentations, more detailed air permitting information would be supplied for several example air jurisdictions in California, including the Bay Area AQMD and San Joaquin Valley APCD.  The examples would cover the range of complexities from the most stringent air permitting requirements to the simplest and most basic requirements.

The attendees to this presentation will learn about:

  • How compost facilities are regulated in different jurisdictions in the western U.S.
  • The key air quality issues that must be addressed to get permits for composting operations.
  • The types of air requirements that can be imposed in permits.
  • What are best management practices and BACT for emissions reductions?
  • Case studies that illustrate examples of how several jurisdictions handle air quality permits for composting.
  • The emitting sources at a compost facility.
  • The effect feedstocks can have on emissions.
  • The test methods in use and general costs.
  • The difference in emissions by compost technology.
  • The control technologies in use and expected emission reductions.
  • The major pollutants emitted by compost facilities.

 

Can We Get Credit for That? with Victoria Evans and Erik Martig

To reduce GHG emissions to meet climate goals, numerous strategies encourage lowering the carbon intensity of operations and supply chains. Here, Victoria and Erik answer the question of ‘Can we get carbon credit for that?” by addressing offsetting and insetting projects applicable to waste related commodities. They focus upon compost and biochar providing relevant examples for both offsetting and insetting. Insetting involves directly reducing emissions within the company’s own operations and value chain. Victoria and Erik will provide examples of carbon accounting quantification for both project types.

 

Explore the full list of sessions from SCSer’s at the SWANA Western Regional Symposium, we look forward to seeing you! Register today!

  • Pat Sullivan – “Current State of the Regulation of Composting Facilities under Air Quality Programs”
  • Michelle Leonard – “Regional Food Recovery Hubs”
  • Eric Martig and Victoria Evans – “Can I Get Credit For That? presented by Victoria Evans and Erik Martig”
  • Srividhya Viswanathan and Ray Huff – “‘L’ is for Landfill Redevelopment – From Golf Courses to Graveyards, Adventures in Landfill Redevelopment”
  • William Haley and Evan Guignon – “Landfill Construction for integrated Gas Systems”
  • Lauren Romanazzi – “Are You Going to Eat That? A Crash Course in Kitchen Conservation”
  • Phil Carrillo and Melissa Russo – “Advancing Drone Technologies for the Solid Waste Industry: Safer, Smarter, and More Efficient Data Collection”

 

 

 

Posted by Diane Samuels at 6:00 am
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