MassDEP's Southeast Regional Office serves 84 towns and cities (listed below) from the southern suburbs of Boston to the Rhode Island border along with Cape Cod, Martha's Vineyard, Nantucket and the Elizabeth chain.
Location, Hours and Contact Information
20 Riverside Drive
Lakeville, MA 02347
Main telephone: 508-946-2700
Service Center / Permit Assistance: 508-946-2714
8:45 a.m. - 5:00 p.m., Monday through Friday.
Additional Resources for Location, Hours and Contact Information
File Review Southeast Region
The public may review the MassDEP Southeast Region's non-confidential files in Lakeville on Tuesdays and Wednesdays from 9:00 a.m. to 11:30 a.m. and 2:00 p.m. to 4:30 p.m. (except state holidays ). Please review the File Review Procedures below and then request an appointment either by:
- Submitting your request online
- Calling 508-946-2718; or
- Mailing or faxing a file review request form to MassDEP
File Review telephone: 508-946-2718
Service Center Main telephone: 508-946-2714
Service Center fax: 508-946-2865
Service Center email: Service.Center@state.ma.us
File Review Procedures
Important Information: You may request up to eight file folders during one appointment. The request should be organized and complete to ensure the correct files are provided, so please research your site(s) before requesting an appointment.
Appointments are only established once you receive a confirmation from Service Center. If the Service Center does not respond to your inquiry within a reasonable time, please re-submit your request.
For phone requests, the voice messaging system will prompt you to leave specific information. We will locate the requested files and confirm the date and time of your appointment within 10 days as required by regulation.
For online, written and faxed requests, your appointment will be confirmed by a phone call or email within 10 days.
Seats are limited and customers are served on a first come - first served basis.
Photo copies and faxes are available for 20 cents per 8" x 11" page. Fees vary for other size pages.
Only checks will be accepted and should be made payable to Commonwealth of Massachusetts. There is a $15 fee for returned checks.
Arrangements can be made to have files sent out to a copy service, which is recommended for any large documents.
If you are unable to keep your appointed time, you must call and cancel your appointment by 12 noon the previous business day.
All requests must include:
1. Your name
2. Company name
3. Telephone number
4. Relevant information as detailed below:
For spills of oil and hazardous material and contaminated sites regulated under MGL Chapter 21E
- You may find the site(s) you are interested in online at the
Look-up for Waste Sites and Reportable Releases
If not, the please provide:
- Street address
- Site name (if applicable)
- DEP Site/RTN # (if known)
For All Others (RCRA, Solid Waste, Right to Know, TURA, Air Quality, Wetlands, Water Supply, Water Pollution) be as specific as possible and supply the
- File # if known
- Complete name
- Complete address (business or residence)
Facilities, Projects & Sites of Interest
- 2003 Buzzards Bay Fuel Oil Spill
- Algonquin Natural Gas Compressor Station, Weymouth
- Attleboro Landfill Inc. Capping Project
- Former Aerovox Facility Assessment & Cleanup
- Massachusetts Military Reservation, Cape Cod
- NRG Canal 3 Development LLC, Sandwich
- Restoring Estuaries
- TLA-Holbrook LLC Municipal Solid Waste Transfer Station, Holbrook
Available from Internet Archive
Southeast Region Features
The Southeast Region is home to 84 towns and cities and the major islands of Martha's Vineyard, Nantucket and the Elizabeth chain. It stretches from the southern suburbs of Boston to the Rhode Island border to Cape Cod.
The region boasts more than two-thirds of the Massachusetts coastline; Assawompset Pond, the largest natural body of fresh water in the state; and the Taunton River, one of only three Massachusetts waterways to have obtained a Scenic River Designation.
The regional office regulates more than 9,000 facilities - including the largest fossil fuel power plant in New England, more than 200 landfills, and 50 wastewater treatment plants - and oversees the cleanup of approximately 1,500 hazardous waste sites.
Cities and Towns in the Southeast Region