President’s Letter
By Don Williams, President

“With your help, we have accomplished so much in the last several years building community, devising a strategy to deal with watershed pollution and the resultant algae and…”

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Innovative and Alternative Septic Systems
Upcoming program with Bryan Horsley

Sep 20, 2023 07:00 PM SEMPBA Headquarters, 158 Center Hill Rd. and via zoom

 – Details – 


Tree Swallows
By Brian Harrington

“Now, in September, huge flocks of tree swallows from the northeast are gathering, sometimes in swarms of thousands, and typically at or near Atlantic coastal locations…”

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Geri’s Fall Gardening Tips
By Geri Williams

“Fall is a good time to divide and replant perennials such as daylily, iris, hosta and bee balm.”

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Tradition Recreated with a Mishoon Burn
From Melissa Ferretti, Herring Pond Wampanoag Tribe Chairwoman

“The Herring Pond Wampanoag Tribe celebrated its rich and diverse culture, traditions, values, and histories of the Wampanoag People of Plymouth Massachusetts with a traditional Mishoon burn on the banks of Great Herring Pond.”  

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Water Quality Report
By Don Williams

“…we have been able to choose installation of a Permeable Reactive Barrier (PRB) in the Carters River between Little Herring Pond (LHP) and Great Herring Pond (GHP) as an interim-term way to remove some of the phosphorus that causes our cyanobacteria blooms.”

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Items of Interest

Wildlands Trust 50th Anniversary Celebration; Mass Audubon Events; Another Appalachian Trail Through Hiker; 

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