- 978, C32, B20, B60 -

the Voice of the Merrimack the Voice of the Merrimack the Voice of the Merrimack the Voice of the Merrimack what we do Merrimack River Watershed Council is a local nonprofit that focuses on making the Merrimack River cleaner healthier and more accessible. Our vision is aMerrimack River Watershed where community and nature flourish together. Our mission is to improve and protect the health of the Merrimack River Watershed for all people and wildlife. Upcoming Events Spring Event Current News 2 new reports highlight CSO impact on Merrimack Two newly released reports are shedding new light on the impact that Combined Sewer Overflows are having on the.