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Water-Year Summary for Site 50095800

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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
00045 Precipitation(Sum)  
62614 Elevation, lake/res, NGVD29(Obs.)  

Water year 2021: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2021
LOCATION - Lat 17°58'53", long 66°08'43" referenced to North American Datum of 1927, Guayama Municipio, PR, Hydrologic Unit 21010004, on right bank in a concrete intake tower at damsite, 2.1 mi (3.379 m) east from Villodas, 1.4 mi (2.253 km) north from Antena de Radio (WXRF), and 2.5 mi (4.022 km) northeast from Jobos School.
PERIOD OF RECORD - October 2004 to current year.
GAGE - Water-stage recorder, satellite and radio telemetry at station. Elevation of gage is above National Geodetic Vertical Datum (NGVD) of 1929, feet.
REMARKS - Transbasin diversion from Río Guamaní through the Canal de Guamaní Oeste. The Lago Melanía dam structure, an earthfill embankment, was completed in 1914. The dam originally had a length of 1,144 ft (348.7 m) and a height of 30 ft (9.14 m). In 1997 was rehabilitated and its height was increased to 36 ft (10.97 m). At its normal pool elevation of 131.74 ft (40.15 m), the reservoir has a storage capacity of 312 acre-ft (0.38 hm3).
EXTREMES FOR PERIOD OF RECORD - Maximum elevation 132.17 ft (40.29 m), September 20, 2017; minimum elevation, 109.02 ft (33.23 m), July 18, 2008.
PERIOD OF RECORD - October 2016 to current year.
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform – 15 minutes interval.