USGS Water-Year Summary 2023
50026200 RIO CAONILLAS BELOW LAGO CAONILLAS TUNNEL, PR
LOCATION - Lat 18°17'57", long 66°38'36" referenced to North American Datum of 1927, Utuado Municipio, PR, Hydrologic Unit 21010002, on left bank at RĂo Caonillas Tunnel 1.6 mi (2.6 km) downstream of Lago Caonillas Dam, 3.1 mi (5 km) southeast from Central HidroelĂ©ctrica of Lago Dos Bocas, 2.6 mi (4.2 km) west from Segunda Unidad de Mameyes School.
DRAINAGE AREA - 50.8 mi², (132 km2).
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 13, 2000 to September 30, 2006; discontinued.
GAGE - Elevation of gage 295 ft (90 m), above National Geodetic Vertical Datum (NGVD) of 1929, from topographic map.
WATER-QUALITY RECORDS
PERIOD OF RECORD - March 30, 2000 to August 13, 2003; discontinued.
PERIOD OF DAILY RECORD - SUSPENDED SEDIMENT DISCHARGE: January 1, 2001 to May 31, 2005; discontinued.