Lagoon Pond

Check out our 2019 state of the pond report!


The 3968-acre watershed is located mainly in Oak Bluffs, Tisbury, and West Tisbury with a small area in Edgartown.


The pond has an area of 544 acres, a mean depth of 9.3 feet, and a tidal range of 1.8 feet.

Water Quality

The MVC categorized this pond as Impaired. Water quality is seriously deteriorated, especially in the upper basin. There is still some patchy eelgrass.

Massachusetts Estuaries Project

The Lagoon Pond MEP Reportwas completed September 2012. DEP determined the Total Maximum Daily Load to be (74kg/day) for the entire system. A 40% reduction in nitrogen is required to support eelgrass restoration.


  • Oak Bluffs set up a committee to prepare recommendations about how to meet the Total Maximum Daily Load.
  • Oak Bluffs and Tisbury are working jointly to determine strategies to reduce nitrogen.
  • Oak Bluffs had MEP do an attenuation study of the freshwater pond at the south end of the pond.
  • Shellfish aquaculture is implemented.
  • Oak Bluffs is also doing studies to sewer areas in the watershed.
  • A ribbed mussel and salt marsh restoration project is proposed with a pilot project currently in Mud Creek.
  • A pilot oyster reef project has been installed in West Arm.
  • A “Floating Islands” pilot project is currently underway. 

Pond Associations

Office location:

Office location:

The Stone Building
33 New York Avenue
Oak Bluffs, MA 02557

Telephone: 508-693-3453
Fax: 508-693-7894

Mailing Address

Mailing address:

Martha's Vineyard Commission
P.O. Box 1447
Oak Bluffs, MA 02557

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