Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 16508000

Click to hide Water-Year Summary instructions and information
  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

Print this page
USGS Water-Year Summary 2023
16508000 Hanawi Stream near Nahiku, Maui, HI
LOCATION - Lat 20°48'24.7", long 156°06'51.2" referenced to North American Datum of 1983, Maui County, HI, Hydrologic Unit 20020000, on left bank 200 ft upstream from Koolau Ditch intake and trail, 1.9 mi southwest of Nahiku, and 4.5 mi southeast of Keanae.
DRAINAGE AREA - 3.29 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 - WSP 1045: 1922-43(M). WSP 1569: Drainage Area. WSP 1719: 1915(M), 1922, 1924-25, 1927, 1930-35, 1937, 1939-40, 1942-43. WDR HI-10-1: Drainage Area.
PERIOD OF RECORD - January 1914 to January 1916, November 1921 to current year. Monthly discharge only April to June 1915, published in WSP 1319.
GAGE - Water-stage recorder. Datum of gage is 1,318 ft above mean sea level (by vertical angles). Prior to November 1, 1921, at site 50 ft downstream at datum 0.12 ft lower.
REMARKS - No diversion upstream of station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 5,850 ft³/s, August 24, 2018, gage height, 12.05 ft; minimum, 0.90 ft³/s, October 28 to November 1, 1984.