The MassDEP Bureau of Waste Site Cleanup (BWSC) has released its revised Policy for “Off-Gas Treatment of Point-Source Remedial Air Emissions” (formerly Policy #WSC-94-150), with a public comment period ending on June 30, 2025.

This Policy concerns air emissions that occur as a result of air stripping of contaminated groundwater, vacuum extraction of soil gases, or any other remedial activity conducted pursuant to MGL Chapter 21E that creates a point-source discharge of contaminants to air. The intent of this Policy is to articulate when off-gas treatment of point-source remedial air emissions may not be necessary to protect human health, safety, public welfare, and the environment.

Read the revised policy here.

How to Submit Your Comments:

1. The LSPA Regulations Committee is soliciting comments on this revised policy. Comments can be emailed to [email protected] by June 18, 2025.
2. In addition to providing comments to the LSPA, comments can be sent to John Fitzgerald, PE, at MassDEP.

Thank you,
John Harvey, LSP
Shawn Rising, LSP
Co-Chairs, LSPA Regulations Committee