On March 19, 2025, Annual Certification letters were sent by MassDEP’s Bureau of Waste Site Cleanup to property owners where an Active Exposure Pathway Mitigation Measure (AEPMM) is required to maintain a Permanent Solution with Conditions under the Massachusetts Contingency Plan (MCP). The MCP requires that the current property owner submit an annual certification concerning the operation and maintenance of the AEPMM upon receipt of a form sent by MassDEP (310 CMR 40.1025(8)).

In addition to the annual certification, MassDEP is requesting that the property owner conduct a shutdown and restart test (310 CMR 40.1025(9)) to demonstrate the remote telemetry for the system is operating correctly. In total, seventy-four (74) letters were sent to property owners. Letters were also emailed when MassDEP had an email on file for the property owner. The deadline for returning the Annual Certification form is May 5, 2025. Annual Certification letters sent by MassDEP are publicly available on the Energy & Environmental Affairs Data Portal.  As MassDEP receives completed forms from property owners those letters will be added to the Data Portal as well. 

A MassDEP BWSC Advisory Committee meeting was held on February 15, 2024. This webpage has slides and video from the meeting. Some highlights are below.

In this video, Brian Roden, BWSC Audits and Enforcement Coordinator, provides a summary of the 2024 MCP Amendments for AEPMMs addressing Vapor Intrusion.

In anticipation of March 1, 2024, when the MCP Amendments go into effect, the LSPA’s Regulations Committee has been working on summarizing key changes to the MCP regulations. 

Provided below is a summary of the new regulations on the topic of Active Exposure Pathway Mitigation Measures (AEPMMS). This information was developed and is provided on behalf of the LSPA only; it does not represent MassDEP guidance or other input. MassDEP training is expected to take place in January 2024.