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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.

Hydrological Unit: Maine Coastal

HUC Name
0105000201 Round Lake-East Machias River
0105000202 East Machias River
0105000203 Upper Machias River
0105000204 Middle Machias River
0105000205 Old Stream
0105000206 Lower Machias River
0105000207 Machias Bay-Frontal Atlantic Ocean
0105000208 Roque Bluffs-Frontal Atlantic Ocean
0105000209 Pleasant River-Frontal Atlantic Ocean
0105000210 Narraguagus River-Frontal Atlantic Ocean
0105000211 Schoodic Point-Frontal Atlantic Ocean
0105000212 Graham Lake
0105000213 Union River Bay
0105000214 Frenchman Bay-Frontal Atlantic Ocean
0105000215 Blue Hill Bay-Frontal Atlantic Ocean
0105000216 Bagaduce River-Frontal Penobscot Bay
0105000217 Eggemoggin Reach-Frontal Atlantic Ocean
0105000218 Passagassawakeag River-Frontal Belfast Bay
0105000219 Penobscot Bay-Frontal Atlantic Ocean
Monitoring Locations