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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 2024
50059050 RIO GRANDE DE LOIZA BELOW DAMSITE, PR
LOCATION - Lat 18°20'32.17", long 66°00'21.51" referenced to North American Datum of 1927, Trujillo Alto Municipio, PR, Hydrologic Unit 21010005, on left bank of State Road 175 and 1.1 mi (1.8 km) downstream of Lago Loíza Dam.
DRAINAGE AREA - 209 mi². (541 km2).
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1986 to current year.
GAGE - Water-stage recorder and crest-stage gage, satellite telemetry at station. Elevation of gage is 49 ft (15 m) above National Geodetic Vertical Datum (NGVD) of 1929, from topographic map. (Corrected).
REMARKS - Flow regulated at all stages by Lago Loíza Dam approximately 1.20 mi (1.931 km) upstream.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - June 2018 to current year.
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform – 15 minutes interval.
