USGS Water-Year Summary for Site 16244000

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	Available Parameters
	00060 Discharge(Mean)
	63680 Turbidity, Form Neph(Mean) [ANALITE]
	63680 Turbidity, Form Neph(Mean) [DTS-12]
	63680 Turbidity, Form Neph(Mean) [OBS]
	80154 Suspnd sedmnt conc(Mean)
	80155 Suspnd sedmnt disch(Mean)

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

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USGS Water-Year Summary 2023

16244000 Pukele Stream near Honolulu, Oahu, HI

LOCATION - Lat 21°18'24", long 157°47'18" referenced to North American Datum of 1983, Honolulu County, HI, Hydrologic Unit 20060000, on right bank of Pukele Stream, 200 ft. upstream of confluence from highway bridge on Palolo Ave, 0.6 mi. upstream from confluence with Waiomao Stream.

DRAINAGE AREA - 1.15 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 835: 1930(M). WSP 1569: Drainage area. WSP 1639: 1927-29(M), 1931(M), 1932(M), 1933-34(M). WSP 1719: 1935(M), 1937-40(M), 1942(M), 1948-59(P). WDR HI-10-1: Drainage Area. Turbidity data on June 30, 2023 was revised on October 25, 2023.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1926 to September 1982, October 2002 to September 2005, April 2010 to current year.

GAGE - Water-stage recorder and concrete V-notch weir. Datum of gage is 344.78 ft above mean sea level (Honolulu Board of Water Supply benchmark).

REMARKS - No diversion upstream.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,600 ft³/s, April 11, 1930, gage height, 7.75 ft, from floodmarks, from rating curve extended above 71 ft³/s by test of model of station site; minimum, 0.08 ft³/s, Oct. 31, 1929.

WATER-QUALITY RECORDS

PERIOD OF RECORD - 1970, 1973, 1976 to 1981, 2010 to current year.

PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT CONCENTRATION AND SUSPENDED-SEDIMENT DISCHARGE: October 2012 to current year. TURBIDITY, water, unfiltered, monochrome near infa-red LED light, 780-900 nm, detection angle 90 +/- 2.5 degrees: Maximum, 1,780 formazin nephelometric units (FNU), : November 2015 to current year.

INSTRUMENTATION - Automatic pumping sediment sampler October 2012 to current year. Turbidity sensor November 2015 to current year.

EXTREMES FOR PERIOD OF RECORD - SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily mean 368 mg/L, July 20, 2014; minimum, 2 mg/L on many days. SUSPENDED-SEDIMENT DISCHARGE: Maximum daily, 474 tons, July 20, 2014; minimum, 0 tons on many days. TURBIDITY, water, unfiltered, monochrome near infa-red LED light, 780-900 nm, detection angle 90 +/- 2.5 degrees: Maximum, 5,890 formazin nephelometric units (FNU), December 6, 2021; minimum, 0.0 FNU on many days.