Events & Updates

Thanks to everyone who made our 2025 Summer Social so successful
A grand time was had by all!
Down Island Coastal Ponds Speaker Series
Join us for our last talk of 2025
Advisory Update: October 09: Cyanobacteria Bloom in Upper Lagoon Pond

This is an updated Town of Oak Bluffs Health Department map indicating the cyano bacteria advisory as of date of map. The map noted 10.09.25 illustrates those locations. The area at the head of the lagoon has continued to show varying degrees of cyano bacteria presence. The original algal mat noted in mid-August disappeared. As of now the alerts indicated are in affect. The remaining areas of the Lagoon have not been re-tested since August 26, but we have no reason to believe there are any issues elsewhere in the pond. At this time, we have a yellow alert for the area just north and south of the Herring Run.

Get Involved

We welcome new members, both individual and business, to the Lagoon Pond Association (LPA). The LPA is a public interest group dedicated to improving the quality of the environment around Lagoon Pond on the island of Martha’s Vineyard. LPA members have the opportunity to keep up to date on critical issues influencing the water quality in the Lagoon through both our own programs and more generally by affecting the policies and actions of several governmental entities that have influence on the environment around the pond.

Become a Member

We need your voice. Sign up to become a Lagoon Pond Association Member.

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How You Can Help

We welcome members who would like to get more involved with the LPA.

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Make a Donation

Make a donation today and help protect the pond! 100% tax deductible.

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Our Impact

30+

Years Serving Communities

The LPA was formed 1n 1989 by the merging of two similar organizations: the Oklahoma Association in Tisbury and the Eastville-Lagoon Association in Oak Bluffs. Both had the same essential mission—to protect and preserve Lagoon Pond. In 1989 they “came to their senses” and merged to become a single, stronger voice.

573+

Acres impacted

The Lagoon Pond estuarine system is a simple estuary with a single armored inlet through the barrier beach. Its 3,889 acre watershed is situated along the eastern edge of Martha’s Vineyard and is bounded by the Sengekontacket Pond watershed to the east. Lagoon Pond itself is 573 acres and lies in a north/south orientation with one small tributary cove referred to as the West Arm, and the main tidal reach consisting of a lower , middle and upper basin based upon geomorphologic features.