USGS Water-Year Summary 2024
50048580 UNNAMED CREEK AT FORT BUCHANAN, GUAYNABO, PR
LOCATION - Lat 18°25'19.88", long 66°06'59.20" referenced to North American Datum of 1927, Guaynabo Municipio, PR, Hydrologic Unit 21010005, on the left bank of creek at culvert, 5.16 mi west of Puerto Rico National Cemetery, and 5.81 mi east of the Roberto Clemente Stadium.
DRAINAGE AREA - 0.40 mi². Indeterminate.
REVISIONS HISTORY - Drainage Area revised in 2021 based on ArcHydro 2020; more detailed topo used.
SURFACE-WATER RECORDS
GAGE - Satellite data collection platform with multiparameter sonde.
WATER-QUALITY RECORDS
PERIOD OF RECORD - WATER TEMPERATURE: October 2015 to current year.
SPECIFIC CONDUCTANCE: October 2015 to current year.
DISSOLVED OXYGEN: October 2015 to current year.
pH: October 2015 to current year.
COOPERATION - United States Army Reserve (USAR)
INSTRUMENTATION - Water-quality monitor consisting of temperature, specific conductance, dissolved oxygen and pH sensors.
EXTREMES FOR PERIOD OF RECORD -
WATER TEMPERATURE: 2020 Water Year Temperature Max: 34.1°C on 09/12/2020; 2020 Water Year Temperature Min: 22.4°C on 1/10/2020.
SPECIFIC CONDUCTANCE: 2020 Water Year Specific Conductivity Max: 2600µS/cm on 05/25/2020; 2020 Water Year Specific Conductivity Min: 26µS/cm on 09/09/2020.
DISSOLVED OXYGEN: Maximum recorded, 15.0 mg/L Oct. 02, 2015 and 07/07/2018 ; minimum recorded, 0.1 mg/L many dates in 2019.
pH: Maximum recorded, 9.3 pH Units Dec. 30, 2015 and June 27, 2019; minimum recorded, 5.7 pH Units Nov. 6, 2016.