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Water-Year Summary for Site 50029000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00045 Precipitation(Sum)  
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
50029000 RIO GRANDE DE ARECIBO AT CENTRAL CAMBALACHE, PR
LOCATION - Lat 18°27'19.92", long 66°42'08.83" referenced to North American Datum of 1927, Arecibo Municipio, PR, Hydrologic Unit 21010002, at bridge on unimproved road, about 500 ft (152 m) upstream from Central Cambalache, near Highway 2, 13.9 mi (22.4 km) downstream from Lago Dos Bocas reservoir, 1.9 mi (3.1 km) downstream from Río Tanamá junction, and 1.6 mi (2.6 km) southeast of Arecibo.
DRAINAGE AREA - 200 mi². (520 km2).
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1963 to January 1965; monthly measurements only, February 1965 to April 1969; occasional measurements only. May 1969 to September 1983, October 1996 to October 2018.
GAGE - Water-stage recorder and satellite telemetry at station. Datum of gage is 2.4 ft. (0.7 m) above Puerto Rico Vertical Datum of 2002 (PRVD02). Elevation or datum of gage was previously reported as 10 ft. (3 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 did not meet the new accuracy requirements.
REMARKS - Flow regulated by Lago Dos Bocas dam since 1942, located 13.9 mi (22.4 km) upstream.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - October 2016 to December 2019
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform – 15 minutes interval.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1963-66, 1969 to 2020.