USGS Water-Year Summary 2023
50055000 RIO GRANDE DE LOIZA AT CAGUAS, PR
LOCATION - Lat 18°14'33.70", long 66°00'34.52" referenced to North American Datum of 1927, Caguas Municipio, PR, Hydrologic Unit 21010005, on right bank 250 ft (76 m) upstream from bridge on State Road 189, 1.2 mi (1.9 km) downstream from Río Turabo, and 1.8 mi (2.9 km) east of Caguas plaza.
DRAINAGE AREA - 89.8 mi², (233 km2).
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 4, 1945 to February 25, 1959; low-flow and peak flow measurements only, February 25 to November 17, 1959; monthly measurements only. November 17, 1959 to current year.
GAGE - Water-stage recorder, satellite telemetry at station. Elevation of gage is 164 ft (50.0 m) above National Geodetic Vertical Datum (NGVD) of 1929, from topographic map.
WATER-QUALITY RECORDS
PERIOD OF RECORD - February 25, 1959 to current year.
PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: October 1, 1983 to September 30, 2004; discontinued.