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Water-Year Summary for Site 50047560

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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.
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Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

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

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USGS Water-Year Summary 2021
LOCATION - Lat 18°12'10", long 66°08'21" referenced to North American Datum of 1927, Cidra Municipio, PR, Hydrologic Unit 21010005, 0.2 mi (0.3 km) downstream of Lago de Cidra Dam on right bank and 2.1 mi (3.4 km) northwest of Cidra plaza.
DRAINAGE AREA - 8.32 mi². (21.5 km2).
PERIOD OF RECORD - November 1, 1990 to September 30, 2004; continuous discharge. October 2004 to September 2013; miscellaneous discharge measurements only. October 2013 to current year.
GAGE - Water-stage recorder and satellite telemetry at station. Datum of gage is 1237.9 ft. (377.3 m) above Puerto Rico Vertical Datum of 2002 (PRVD02). Elevation or datum of gage was previously reported as 1,280 ft. (390 m) above mean sea level and NGVD 29 and was established via topographic map and a new GNSS survey was used to establish a PRVD02 datum because the topographic datum did not meet the new accuracy requirements.
REMARKS - Regulation at all stages by the Puerto Rico Aqueduct and Sewer Authority (PRASA) reservoir upstream from gage.
PERIOD OF RECORD - April 7, 1993 to August 23, 2000; discontinued.
REMARKS - SEDIMENT DATA: October 1, 1990 to September 30, 2000; discontinued.