Listing of all communities included in each of the hydrologic unit code (HUC) 8, 10, and 12 boundaries for the Merrimack River Watershed and city locations for the EPA water quality monitoring stations.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Merrimack River Watershed Communities Listing (PDF)(34 pp, 279 K)