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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.
USGS Water-Year Summary 2025
50011000 CANAL PRINCIPAL DE DERIVACION AT LAGO DE GUAJATACA, PR
LOCATION - Lat 18°23'58.26", long 66°55'39.02" referenced to North American Datum of 1927, Quebradillas Municipio, PR, Hydrologic Unit 21010002, off State Road 476 at Lago Guajataca outlet, 3 mi (4.8 km) southwest of Segunda Unidad Baldorioty de Castro School, and 5.3 mi (8.5 km) south of Quebradillas plaza.
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1959 to May 1964; annual measurements only, June 1969 to February 1971; discontinued, March 2006 to September 2011. October 2011 to September 30, 2013; gage heights and miscellaneous discharge measurements only. October 1, 2013 to September 30, 2016; gage height only. October 1, 2016 to current year.
GAGE - Water-stage recorder, satellite telemetry at station. Datum of gage is 588.69 ft. (179.4 m) above Puerto Rico Vertical datum of 2002 (PRVD02). Elevation or datum was previously reported as 591 ft (180 m), above National Geodetic Vertical Datum (NGVD) of 1929 was established via topographic map and a new GNSS survey was used to establish a PRVD02 datum because the topographic map datum did not meet the new accuracy requirements.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1958-64, 1974 to September 2012, discontinued.
