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). 

The Department solicited both written and oral public comment on these proposals.  Four public hearings were held between May 20 - 29, 2019. The public comment period ended July 19, 2019.

The Department is currently  reviewing and revising the proposed regulations before promulgating them as final.  

Note that, In the interest of coordinating the implementation of the PFAS-related MCP provisions with the regulatory process to establish PFAS Maximum Contaminant Levels for public water supplies under the Massachusetts Drinking Water Regulations, 310 CMR 22.00, MassDEP is moving forward with finalizing the PFAS-related MCP provisions at this time; the balance of the proposed MCP amendments will be addressed in a subsequent final amendments package.

Table of Contents

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@mass.gov
For specific questions about waste site cleanup regulations and requirements: BWSC.Regulations@mass.gov

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