2019 Proposed MCP Revisions

Proposed changes to the Waste Site Cleanup regulations (310 CMR 40.0000) and supporting documentation.

MassDEP has prepared revisions to the Massachusetts Contingency Plan ("MCP", 310 CMR 40.0000), which are the regulations governing the notification, assessment, cleanup and closure of oil and hazardous material disposal sites.

The revisions address numerous aspects of the cleanup regulations, including new standards for per- and polyfluoroalkyl substances (PFAS). 

A Revised Public Hearing Notice, published on May 3, 2019, updates the Public Hearing Notice made by MassDEP in the Massachusetts Register on April 19, 2018 regarding the MCP amendments.  This Revised Public Hearing Notice is made to provide notice that certain typographical errors in the amendments to the MCP, as posted on MassDEP’s website prior to April 20, 2019, have been corrected.  The corrections pertain to certain RC and Method 1 standards for the six perfluoroalkyl substances referred to above. 

As indicated below, the Department is soliciting both written and oral public comment on these proposals.  Four public hearings will be held between May 20 - 29, 2019. The public comment period ends July 19, 2019.

Table of Contents

Public Hearing Notice

Proposed Regulations

PFAS-Specific Proposals (Extracted from the FULL set of proposed MCP changes above - does NOT cover ALL proposals)

Documentation of Revisions to the MCP Numerical Standards

More Information on the MCP Revisions Topics



To Report a Spill or Environmental Emergency 1-888-304-1133

(1) Call your local Fire Department, then (2) Call MassDEP - 24/7

For general information about how the Waste Site Cleanup program works 617-292-5500

MassDEP Boston Headquarters - ask for the Waste Site Cleanup program


For general program information, please email your questions to: BWSC.Information@state.ma.us
For specific questions about waste site cleanup regulations and requirements: BWSC.Regulations@state.ma.us