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Peak Streamflow for the Nation

USGS 01100000 MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA

Middlesex County, Massachusetts
Hydrologic Unit Code 01070006
Latitude  42°38'45", Longitude  71°17'56" NAD27
Drainage area 4,635  square miles
Contributing drainage area 4,421  square miles
Gage datum 4.37 feet above NAVD88

Period of record
Begin Date End Date Peaks
1852-04-23 2019-12-16 98

 
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