Expertise for Communities

Deer Island Tour

  • Friday, October 16, 2015
  • 12:30 PM - 2:30 PM
  • Winthrop, MA

Do you know where the water goes after you flush? Perhaps all too well. But if you are in one of the 43 communities in the Boston Region served by MWRA, you may never have to concern yourself with that question. The Deer Island Waste Water Treatment Plant is the nation's second largest, cleans the sewage waste stream generated within a region with a combined population of 2.5 million. Protecting against the daily onslaught of sewage that had once contaminated waters and fouled beaches, Deer Island now helps welcome visitors to the restored richness and beauty of Boston Harbor and its islands. 

MACP members are invited to join a scheduled tour of the Deer Island Wastewater Treatment Facility on Friday, October 16. Beginning at 12:30, the tour is expected to last approximately 2 hours

RSVP required by Friday, October 2 in order to register for security clearance. Friends and family are welcome (children must be age 12+ to attend the tour), however space is limited.  RSVP by sending an email to:

For more information:

Following are directions to Deer Island:

Deer Island, which connects to the town of Winthrop, Masschusetts, is accessible by car and public transportation.

  • For GPS, the address to use is 190 Tafts Avenue, Winthrop, MA 02152.
  • From Boston, the Callahan or the Ted Williams Tunnel, follow Route 1A North, McClellan Highway, until first traffic light.
  • Take right on Boardman Street to rotary, go half way around and continue on Saratoga Street
  • After passing “Entering Winthrop” sign take first right onto Pleasant Street (Route 145)
  • Discontinue following Route 145.
  • At “Stop” sign take a right on Shirley Street
  • Follow Shirley Street to Elliot Street take a right and follow Elliot Street around to the left.
  • Take a right on to Tafts Avenue and follow to the end. (Please note the speed limit is 20 MPH)
  • Check in at Security Gate.

Note:  Deer Island Security requires that International guests submit advanced registration two weeks in advance. Please RSVP earlier than October 2 if this restriction will apply.

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