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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.
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USGS Water-Year Summary 2024
50050900 RIO GRANDE DE LOIZA AT QUEBRADA ARENAS, PR
LOCATION - Lat 18°07'12", long 65°59'19" referenced to North American Datum of 1927, San Lorenzo Municipio, PR, Hydrologic Unit 21010005, at intersection of State Roads 181 and 9990, 0.2 mi (0.3 km) upstream from confluence with Río Emajagua, and about 7.1 mi (11.4 km) southwest of San Lorenzo.
DRAINAGE AREA - 6 mi². (15.54 km2).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1977 to current year.
GAGE - Water-stage recorder, satellite telemetry at station. Datum of gage is 634.98 ft. (193.54 m) above Puerto Rico Vertical Datum of 2002 (PRVD02). Elevation or datum was previously reported as 640 ft. (195 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 map datum did not meet the new accuracy requirements.
WATER-QUALITY RECORDS
PERIOD OF RECORD - August 17, 1981 to March 10, 1982; discontinued.
REMARKS - SEDIMENT DATA: October 1, 1984 to September 30, 1986; discontinued.
