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Water-Year Summary for Site 16284200

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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
16284200 Waihee Stream near Kahaluu, Oahu, HI
LOCATION - Lat 21°26'53.4", long 157°51'23.8" referenced to North American Datum of 1983, Honolulu County, HI, Hydrologic Unit 20060000, on right bank, 0.2 mi downstream from forest-reserve boundary, 1.0 mi south of Kahaluu School, and 1.6 mi west of Ahuimanu sewage treatment plant.
DRAINAGE AREA - 0.97 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-11-1: 2008-2010
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1974 to current year.
GAGE - Water-stage recorder and concrete control. Elevation of gage is 170 ft above mean sea level (from topographic map).
REMARKS - Water is diverted into the Waihee basin upstream from the gage.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,800 ft³/s, June 4, 2011, gage height 9.40 ft., from rating curve 5.0 drawn on basis of critical-depth analysis up to gage height 9.78 ft.; minimum, 1.1 ft³/s, April 7, 1977.