Welcome!
Lake Massapoag is a 392-acre, natural, stream and spring-fed lake, located in Sharon, MA. It is one of the Town's most valuable natural resources.
The name Massapoag is Algonquin, meaning "large water". The lake is the headwaters of the Massapoag Brook, which flows from the north end of the lake at the flume house, through Hammer Shop Pond, Mann's Pond, then Trowel Shop Pond and eventually into the Neponset River.
On these pages you will find up-to-date information on lake status and test results for E. coli, cyanobacteria, and nutrients, how you can protect the lake from excess nutrient influx that feeds cyanobacteria and E. coli, and links to lake-related events and recreational opportunities.
Lake Massapoag's Memorial Beach and other swimming beaches had good water quality in 2023, with the exception of Community Center Beach.
This dashboard shows the progress we are making in identifying hot spots for E. coli and phosphorus, which will help inform future recommendations for source reduction, plans for mitigation, and infrastructure projects to improve lake health.
The name Massapoag is Algonquin, meaning "large water". The lake is the headwaters of the Massapoag Brook, which flows from the north end of the lake at the flume house, through Hammer Shop Pond, Mann's Pond, then Trowel Shop Pond and eventually into the Neponset River.
On these pages you will find up-to-date information on lake status and test results for E. coli, cyanobacteria, and nutrients, how you can protect the lake from excess nutrient influx that feeds cyanobacteria and E. coli, and links to lake-related events and recreational opportunities.
Lake Massapoag's Memorial Beach and other swimming beaches had good water quality in 2023, with the exception of Community Center Beach.
This dashboard shows the progress we are making in identifying hot spots for E. coli and phosphorus, which will help inform future recommendations for source reduction, plans for mitigation, and infrastructure projects to improve lake health.
Protecting Lake Massapoag
To address the environmental challenges that face the lake, the Lake Massapoag Advisory Committee (LMAC) applied for and received two state grants, the Municipal Vulnerability Preparedness (MVP) Action Grant and MassDEP 604(b), to develop a Watershed-Based Plan for a Resilient Lake Massapoag 2025-2050.
These grants enable in-depth study to guide specific plans to improve the lake’s water quality in the face of years of accumulated development, and climate change impacts. Our consultants are the Neponset River Watershed Association and TRC.
We plan to engage in educational outreach to residents, schools, camps, community groups, businesses, and stakeholders in a variety of ways.
These grants enable in-depth study to guide specific plans to improve the lake’s water quality in the face of years of accumulated development, and climate change impacts. Our consultants are the Neponset River Watershed Association and TRC.
We plan to engage in educational outreach to residents, schools, camps, community groups, businesses, and stakeholders in a variety of ways.
About the Lake Massapoag Advisory Committee (LMAC)
The LMAC was created by the Town of Sharon, MA in 1969 and updated at 2022 Town Meeting to expand its membership and scope, with additional resources to address the challenges facing Lake Massapoag. Lake Massapoag is a Great Pond, by state definition, and thus overseen by the Select Board. It is managed under the orders of conditions set by the Town of Sharon Conservation Commission.
Its seven members are appointed by the Conservation Commission, Select Board, Planning Board, and Recreation Advisory Committee. The LMAC provides recommendations to the Conservation Commission on matters pertaining to lake management. The Lake Massapoag website is sponsored by the LMAC. The public is welcome to attend the meetings.
For more info, email [email protected]
Its seven members are appointed by the Conservation Commission, Select Board, Planning Board, and Recreation Advisory Committee. The LMAC provides recommendations to the Conservation Commission on matters pertaining to lake management. The Lake Massapoag website is sponsored by the LMAC. The public is welcome to attend the meetings.
For more info, email [email protected]