USGS Water-Year Summary 2020
50090500 RIO MAUNABO AT LIZAS, PR
LOCATION - Lat 18°01'38", long 65°56'24" referenced to North American Datum of 1927, Maunabo Municipio, PR, Hydrologic Unit 21010005, on right bank off State Road 759 at Lizas, about 1 mi (1.6 km) downstream from Quebrada Coroco, and about 3 mi (4.8 km) northwest of Maunabo.
DRAINAGE AREA - 5.38 mi². (13.9 km2).
Revisions: The maximum gage height and discharge for water years 1985 and 1991 were removed on Oct. 16, 2019 due to incomplete record.
The maximum discharge for water years 1994 and 1996 were revised on Dec. 4, 2019, based on updated stage-discharge rating.
Discharge for the period Sep 20, 2017, was revised on Aug 2, 2018, based on an indirect measurement.
PERIOD OF RECORD - February 9, 1971 to January 29, 1985, February 15, 1991 to September 30, 2008, October 2008 to September 2010; discharge measurements only. October 1, 2010 to current year.
GAGE - Water-stage recorder, crest stage gage, and satellite telemetry at station. Datum of gage is 188.5 ft. (57.5 m) above Puerto Rico Vertical Datum of 2002 (PRVD02). Elevation or datum of gage was previously reported as 230 ft. (70 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.
PERIOD OF RECORD - March 12, 1971 to June 20, 2007; discontinued.