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Water-Year Summary for Site 01179500

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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
01179500 WESTFIELD RIVER AT KNIGHTVILLE, MA
LOCATION - Lat 42°17'16", long 72°51'53" referenced to North American Datum of 1927, Hampshire County, MA, Hydrologic Unit 01080206, on left bank at Knightville, 0.2 mi downstream from Knightville Dam, 0.2 mi upstream from Sykes Brook, 2.4 mi upstream from Middle Branch Westfield, 3.5 mi north of Huntington, and at river mile 29.7.
DRAINAGE AREA - 161 mi².
REVISIONS HISTORY - WSP 415: 1909-12. WSP 1001: 1941-43. WSP 1231: 1910, 1912, 1913(M), 1914-15, 1916-19(M), 1921-23(M), 1925-27(M), 1929-33(M), 1935(M). WDR MA-RI-84-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge: August 1909 to September 1990, October 1995 to current year. Water-quality records: Water year 1953.
GAGE - Data Collection Platform with satellite telemeter. Datum of gage is 460.62 ft above NAVD 1988, from levels by U.S. Army Corps of Engineers. Prior to May 11, 2020, datum reported as 461.25 ft above NGVD 1929, from levels by U.S. Army Corps of Engineers, obtained from elevation of RM-2 used as 466.88 ft above mean sea level by Corps of Engineers (The source of this elevation is B.M. P-6, U.S.C. & G.S. at Huntington, elevation, 381.91 ft, datum of 1929). Prior to Jan. 11, 1936, non-recording gage at site 0.5 mi upstream at different datum. Jan. 11, 1935, to May 20, 1940, water-stage recorder at site 700 ft upstream at datum 10.57 ft higher. May 21 to Dec. 19, 1940, non-recording gage at site 700 ft upstream at datum 18.75 ft higher.
COOPERATION - U.S. Army Corps of Engineers.
REMARKS - Records fair except those for estimated discharge and those for discharges greater than 2,000 ft³/s, which are poor. Flow regulated by Knightville Reservoir since 1941.

Maximum peak flow 37,900 ft³/s Sept 21, 1938 from rating curve extended above 3,800ft³/s on basis of slope-area measurement at gage heights 24.07 ft and 29.58 ft.

Maximum peak stage 29.58 ft Sept 21, 1938 from floodmarks, site and datum then is use.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water-quality records: Water year 1953.