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DESCRIPTION:

Latitude 29°15'50",   Longitude 98°29'26"   NAD27

Bexar County, Texas, Hydrologic Unit 12100302

Drainage area: 1,317 square miles

Contributing drainage area: 1,317 square miles,

Datum of gage: 439.03 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2025-11-16
Daily Data
Temperature, water, degrees Celsius	1987-10-01	2024-07-16	34922
Precipitation, total, inches	2009-11-19	2025-11-15	5462
Discharge, cubic feet per second	1939-07-27	2025-11-16	46874
Gage height, feet	1988-12-13	2025-11-16	30234
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-10-01	2024-07-16	34778
pH, water, unfiltered, field, standard units	1987-10-01	2024-07-16	22872
pH, water, unfiltered, field, standard units	1987-10-01	2000-09-30	4563
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2005-03-11	2024-07-16	20562
Daily Statistics
Temperature, water, degrees Celsius	1987-10-01	2024-07-16	11642
Discharge, cubic feet per second	1939-07-27	2025-03-16	31280
Gage height, feet	1988-12-13	2025-03-16	13050
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-10-01	2024-07-16	11730
pH, water, unfiltered, field, standard units	1987-10-01	2000-09-30	4563
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2005-03-11	2024-07-16	6854
Monthly Statistics
Temperature, water, degrees Celsius	1987-10	2024-07
Discharge, cubic feet per second	1939-07	2025-03
Gage height, feet	1988-12	2025-03
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-10	2024-07
pH, water, unfiltered, field, standard units	1987-10	2000-09
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2005-03	2024-07
Annual Statistics
Temperature, water, degrees Celsius	1988	2024
Discharge, cubic feet per second	1939	2025
Gage height, feet	1989	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1988	2024
pH, water, unfiltered, field, standard units	1988	2000
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2005	2024
Peak streamflow	1940-06-30	2024-01-22	85
Field measurements	1939-07-28	2025-09-15	847
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1965-06-07	2021-06-28	242
Water-Year Summary	2005	2024	20
Revisions	Loading...

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