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Water-Year Summary for Site 16604500

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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
16604500 Wailuku Stream at Kepaniwai Park near Wailuku, Maui, HI
LOCATION - Lat 20°52'56.6", long 156°32'21.4" referenced to North American Datum of 1983, Maui County, HI, Hydrologic Unit 20020000, on left bank of Maniania and Waikapu Ditch intake, 0.3 mi upstream from Kepaniwai Park, 0.5 mi downstream from Iao Valley State Park, and 2.3 mi west of Wailuku Post Office.
DRAINAGE AREA - 6.13 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-10-1: Drainage Area.
PERIOD OF RECORD - May 1983 to current year.
GAGE - Water-stage recorder. Elevation of gage is 780 ft above mean sea level (from topographic map).
REMARKS - No appreciable diversion upstream of station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 6,260 ft³/s, January 28, 1988, gage height, 9.0 ft, from rating curve extended above 181 ft³/s on basis of slope-area measurements at gage heights 6.48 ft and 9.0 ft; minimum, 5.3 ft³/s on Jan. 26, 2009.