USGS 01130000 UPPER AMMONOOSUC RIVER NEAR GROVETON, NH

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DESCRIPTION:: Latitude 44°37'30", Longitude 71°28'10" NAD27; Coos County, New Hampshire, Hydrologic Unit 01080101; Drainage area: 232 square miles; Datum of gage: 916.43 feet above NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations (availability statement)	2010-10-01	2025-03-11
Daily Data
Discharge, cubic feet per second	1940-08-10	2025-03-09	28496
Daily Statistics
Discharge, cubic feet per second	1940-08-10	2024-11-06	28373
Monthly Statistics
Discharge, cubic feet per second	1940-08	2024-11
Annual Statistics
Discharge, cubic feet per second	1940	2025
Peak streamflow	1936-03	2023-12-19	78
Field measurements	1942-04-28	2024-12-12	278
Field/Lab water-quality samples	1954-10-09	1999-08-02	168
Water-Year Summary	2010	2024	15
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

U.S. Department of the Interior | U.S. Geological Survey
Title: NWIS Site Information for USA: Site Inventory
URL: https://staging.waterdata.usgs.gov/nwis/inventory?

Page Contact Information: New Hampshire Water Data Support Team
Page Last Modified: 2025-03-11 01:11:14 EDT
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