Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins
Click to hide state-specific text

To view real-time groundwater levels in New Hampshire. click here

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.

Search Results. -- No data were found using your search criteria


The data you requested may be available offline.
    For more information on these data, contact USGS Water Data Support Team

Links to other data for the requested sites follows:

USGS 01088400 MERRIMACK RIVER AT CONCORD, NH
Data Type Begin Date End Date Count
 Field measurements 1979-04-09  2001-04-20  11 
 Field/Lab water-quality samples 1979-04-09  1982-09-15  43 
 Revisions  Loading...