USGS Home
Contact USGS
Search USGS

National Water Information System: Web Interface

USGS Water Resources   

Data Category:
Home Current Conditions Site Information Mapper Surface Water Groundwater Water Quality Water Use Revisions Geographic Area:
United States Alabama Alaska American Samoa Arizona Arkansas British Columbia California Canton and Enderbury Islands Colorado Connecticut Delaware Dist. of Columbia Florida Georgia Guam Hawaii Idaho Illinois Indiana Iowa Johnston Atoll Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Midway Islands Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Northern Mariana Islands Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island Ryukyu Islands, Southern South Carolina South Dakota Swan Islands Tennessee Texas Trust Territories, Pacific Is U.S.Misc Caribbean Islands U.S.Misc Pacific Islands Utah Vermont Virgin Islands Virginia Wake Island Washington West Virginia Wisconsin Wyoming

Page Loading - Please Wait...

DESCRIPTION:

Latitude 43°17'49",   Longitude 71°41'42"   NAD27

Merrimack County, New Hampshire, Hydrologic Unit 01070003

Drainage area: 129 square miles

Datum of gage: 431.17 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2024-10-01	2025-09-05
Daily Data
Discharge, cubic feet per second	1918-05-16	2025-09-06	24081
Daily Statistics
Discharge, cubic feet per second	1918-05-16	2025-04-01	23927
Monthly Statistics
Discharge, cubic feet per second	1918-05	2025-04
Annual Statistics
Discharge, cubic feet per second	1918	2025
Peak streamflow	1919-03-30	2016-02-27	92
Field measurements	1938-09-22	2025-08-13	213
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1956-12-18	1999-09-02	134
Water-Year Summary	2006	2013	8
Revisions	Loading...

OPERATION:

Record for this site is maintained by the USGS New Hampshire Water Science Center

Email questions about this site to New Hampshire Water Science Center Water-Data Inquiries