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Water-Year Summary for Site 50081000

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  • 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)  
00065 Gage height(Mean)  

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

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USGS Water-Year Summary 2023
LOCATION - Lat 18°10'26.61", long 65°52'09.98" referenced to North American Datum of 1927, Las Piedras Municipio, PR, Hydrologic Unit 21010005, on left bank at downstream side of bridge on State Road 921, 0.6 mi (1 km) southeast of junction with State Road 30, 0.8 mi (1.3 km) downstream from Quebrada Blanca, and 0.8 mi (1.3 km) south of Las Piedras.
DRAINAGE AREA - 6.65 mi², (17.2 km2).
PERIOD OF RECORD - September 1958 to December 1967; monthly discharge measurements. July 12, 1974 to September 30, 1977, October 1, 1987 to current year.
GAGE - Water-stage recorder, crest-stage gage, and satellite telemetry at station. Elevation of gage is 263 ft (80 m) above National Geodetic Vertical Datum (NGVD) of 1929, from topographic map. Prior to July 1974, crest-stage gage at different datum. July 1974 to September 1977 at site 90 ft (27 m) upstream at present datum.
REMARKS - Low-flow affected by domestic discharges from unknown source.
PERIOD OF RECORD - January 29, 1959 to September 10, 1979; discontinued.