USGS Water-Year Summary 2023

010965852 BEAVER BROOK AT NORTH PELHAM, NH

LOCATION - Lat 42°46'58", long 71°21'15" referenced to North American Datum of 1927, Rockingham County, NH, Hydrologic Unit 01070002, on right bank, 10 ft downstream from State Highway 128 bridge at the Windham-Pelham town line, 0.7 mi north of North Pelham, 1.3 mi south of State Highways 128 and 111 intersection in West Windham, and 4.7 mi north of Pelham.

DRAINAGE AREA - 47.8 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - Discharge records: October 1986 to current year. Peak streamflow: Water years 1987 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 148.55 ft above North American Vertical Datum of 1988.

COOPERATION - New Hampshire Department of Environmental Services and USGS Cooperative Water Program.

REMARKS - WATER YEARS 2014-16 and 2018-22: Records good except those for estimated discharges, which are poor.
WATER YEAR 2017: Records good except those for August 11-30, which are fair, and those for estimated discharges which are poor.
Some regulation at low- and medium-flows.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,940 ft³/s, May 15, 2006, gage height, 14.90 ft; minimum discharge, 0.11 ft³/s, September 16, 2016.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water-quality discrete samples: Water years 1988 to 2000.