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Water-Year Summary for Site 16720000

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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
16720000 Kawainui Stream near Kamuela, HI
LOCATION - Lat 20°05'07.2", long 155°40'52.2" referenced to North American Datum of 1983, Hawaii County, HI, Hydrologic Unit 20010000, on left bank 125 ft upstream from Upper Hamakua ditch intake, and 4.5 mi north of Kamuela.
DRAINAGE AREA - 1.54 mi². from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated September 2006 and Watershed Boundary Dataset dated May 2008, using UTM Zone 4 projection, NAD 83 horizontal datum.
REVISIONS HISTORY - WDR HI-95-1: 1965-90 (m), 1970, 1971, 1979, 1984, 1990. WDR HI-10-1: Drainage Area.  Discharge from January 9-29, 2020 was revised on April 5, 2020.
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1964 to current year.
GAGE - Water-stage recorder. Elevation of gage is 4,060 ft above mean sea level (from topographic map).
REMARKS - No diversion upstream.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,160 ft³/s, November 18, 1979, gage height, 10.03 ft, from rating curve extended above 53 ft³/s on basis of computations of peak flow over dam and slope-area measurement at gage height 10.03 ft; minimum, 0.01 ft³/s, January 23-28, February 20-21, 1977, December 16-19, February 23, 24, 1980.