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Water-Year Summary for Site 16415600

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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)  
80154 Suspnd sedmnt conc(Mean)  
80155 Suspnd sedmnt disch(Mean)  

Water year 2023: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2023
16415600 Kawela Gulch near Moku, Molokai, HI
LOCATION - Lat 21°04'11.9", long 156°56'54.0" referenced to North American Datum of 1983, Maui County, HI, Hydrologic Unit 20050000, on left bank 1,200 ft upstream of Highway 450, and 5 mi southeast of Kaunakakai.
DRAINAGE AREA - 5.28 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-2009: 2008, WDR HI-12-1: Drainage Area.
PERIOD OF RECORD - Annual maximum 2002 to 2004, water-stage recorder October 2004 to September 2011, annual maximum 2012 to 2015, water-stage recorder December 2015 to present. 
GAGE - Water-stage recorder. Elevation of gage is 70 feet above mean sea level (from topographic map).
REMARKS - Flow on the East and West forks is affected by diversion to Molokai Irrigation System pipeline at elevation 3,625 ft.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,190 ft³/s, November 27, 2001, gage height, 6.76 ft, site and datum then in use; minimum discharge, no flow on many days.
PERIOD OF DAILY RECORD - Suspended sediment discharge and concentrations:  October 2004 to September 2011, January 2016 to current year.
EXTREMES FOR PERIOD OF RECORD - SUSPENDED-SEDIMENT CONCENTRATION: maximum, 84,800 mg/L, October 24, 2017; minimum, 0 mg/L on many days.
SUSPENDED-SEDIMENT DISCHARGE: maximum, 73,300 tons/day, October 24, 2017; minimum, 0 tons/day on many days.
EXTREMES FOR PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT CONCENTRATION: maximum, 13,800 mg/L, January 13, 2011; minimum, 0 mg/L on many days. 
SUSPENDED-SEDIMENT DISCHARGE: maximum, 7,280 tons/day, January 13, 2011; minimum, 0 tons/day on many days.