USGS Water-Year Summary 2018
01175500 SWIFT RIVER AT WEST WARE, MA
LOCATION - Lat 42°16'04", long 72°19'59" referenced to North American Datum of 1927, Hampshire County, MA, Hydrologic Unit 01080204, on left bank at West Ware, 1.4 mi downstream from Quabbin Reservoir, 3.5 mi east of Belchertown, and 8.0 mi upstream from mouth.
DRAINAGE AREA - 189 mi². includes 1.6 mi² drained by Beaver Brook, flow of which is diverted from Ware River Basin.
- WSP 451: 1916. WSP 871: 1919. WSP 1031: 1944 (changes in reservoir contents and adjusted figures only). WSP 1301: 1925(M). WDR MA-RI-84-1: Drainage area.
PERIOD OF RECORD - Discharge: July 1910 to September 1912 (twice-daily gage heights and corresponding discharge), October 1912 to current year. Water-quality records: Water years 1952-54.
GAGE - Water-stage recorder with satellite telemeter. Datum of gage is 365.18 ft above National Geodetic Vertical Datum of 1929. Prior to Aug. 25, 1912, nonrecording gage at site 400 ft upstream at same datum.
COOPERATION - Massachusetts Department of Conservation and Recreation, Division of Water Supply Protection, Office of Watershed Management.
EXTREMES FOR PERIOD PRIOR TO REGULATION - Maximum discharge prior to construction of Quabbin Reservoir in 1939, 7,590 ft³/s, Mar. 19, 1936, gage height, 15.00 ft.
AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - Average discharge for period prior to construction of Quabbin Reservoir during water years 1913-39 (27 years), 314 ft³/s, 22.56 in/yr.
DATUM - Land-surface datum is 365.18 ft above National Geodetic Vertical Datum of 1929. Measuring point: MEASURINGPOINT.
PERIOD OF RECORD - Water-quality records: Water years 1952-54.