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Water-Year Summary for Site 01183500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 42°06'24", long 72°41'58" referenced to North American Datum of 1927, Hampden County, MA, Hydrologic Unit 01080206, on left bank 0.7 mi downstream from Great Brook, 3 mi east of Westfield, and 8.1 mi upstream from mouth.
DRAINAGE AREA - 497 mi².

WSP 601: 1924(M). WSP 756: Drainage area. WSP 1051: 1919-21(M), 1925(M). WSP 1231: 1915-16(M), 1920.

Dec 27-30 2017 Jan 5-8, Jan 12-13 2018 had revised discharge values due to ice. 

PERIOD OF RECORD - Discharge: June 1914 to current year. Water Quality: Water years 1952-53, 1957, 1967-74, 1994.
GAGE - Data Collection Platform with satellite telemeter. Datum of gage is 97.52 ft above NAVD 1988. Prior to May 11, 2020, datum reported as 98.25 ft above NGVD 1929. Prior to Nov. 3, 1933, on right bank at same datum.
COOPERATION - Massachusetts Department of Conservation and Recreation, Office of Water Resources.
REMARKS - Records fair except those for estimated daily discharges and those for discharges greater than 2,000 cfs, which are poor. Flow regulated by Borden Brook Reservoir, Cobble Mountain Reservoir since 1931, Knightville Reservoir since 1941, and Littleville Lake since 1965. High flow slightly affected by retarding reservoirs since 1963. Diversion from Little River for municipal water supply of Springfield.

The historical peak flow of 70,300 cfs on Aug. 19, 1955 is based on rating curve extended above 18,000 ft³/s on basis of computations of flow over dam at gage heights 27.20 ft, 29.40 ft, and 34.20 ft. The maximum peak stage of 34.20 ft is from floodmarks.
PERIOD OF RECORD - Water Quality: Water years 1952-53, 1957, 1967-74, 1994.