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Water-Year Summary for Site 50028000

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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
00045 Precipitation(Sum)  
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
50028000 RIO TANAMA NEAR UTUADO, PR
LOCATION - Lat 18°18'02.61", long 66°46'58.85" referenced to North American Datum of 1927, Utuado Municipio, PR, Hydrologic Unit 21010002, on downstream side of left abutment of bridge on State Road 111, 1.2 mi (1.9 km) upstream from natural tunnel, 1.5 mi (2.4 km) northeast of Angeles, and 5.8 mi (9.3 km) northwest of Utuado.
DRAINAGE AREA - 18 mi². (47.0 km2).
REVISIONS HISTORY -

Revisions: Discharge for the period Aug 14, 2017, to Feb 20, 2018, was revised on Jul 31, 2018, based on changes to the stage-discharge rating.

Drainage area revised in 2021 based on ArcHydro 2020, more detailed topo used.

SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1944 to June 1958; daily stage and two to four measurements per month by the Puerto Rico Aqueduct and Sewer Authority (PRASA). November 1959 to current year.
GAGE - Water-stage recorder, crest-stage gage, and satellite telemetry at station. Elevation of gage is 948 ft (289 m) above National Geodetic Vertical Datum (NGVD) of 1929. Elevation of gage was increased by 3.00 ft (0.914 m) on October 1978.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - October 2016 to current year.
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform – 15 minutes interval.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1958 to current year.
PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: January 1968 to September 2012.
INSTRUMENTATION - US D-59 sediment sampler since October 1968. Sediment pumping sampler since 1990
EXTREMES FOR PERIOD OF DAILY RECORD - SEDIMENT CONCENTRATIONS: Maximum daily mean, 20,400 mg/L November 27, 1968; minimum daily mean, 1 mg/L during water year 1985 to September 2012. (Discontinued). SEDIMENT LOADS: Maximum daily, 240,000 tons (218,000 tonnes) September 22, 1998, minimum daily, <0.01 ton (<0.01 tonne) several days during many years.