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Merrimack River Watershed StoryMap

The Merrimack River and its watershed is one of New England’s iconic waterways. The watershed is a recreational resource for nearly 200 communities and 2.6 million people and is the primary drinking water source for about 550,000 people in Massachusetts and New Hampshire. The vast two-state watershed covers 5,010 square miles and is home to a variety of sensitive species and habitats.

EPA created an interactive StoryMap that highlights maps and important themes such as flooding risk, water quality risks from developed land, and a new section on water quality monitoring resources for the Merrimack River Watershed.