MassDEP has just posted a new Public Comment Draft document for your review at https://www.mass.gov/lists/policies-guidance-technical-support-for-site-cleanup#draft-policies-      

“Guidance for Persons Performing Response Actions at Massachusetts Contingency Plan Disposal Sites Who May be Generators of Hazardous Waste.”

The purpose of this guidance document is to assist persons performing response actions at MCP disposal sites in determining whether they are a generator of one or more hazardous wastes. 

Comments can be sent to the LSPA at [email protected] by May 18, 2026, for inclusion in our comment letter or directly to MassDEP at [email protected] by May 29, 2026.