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DESCRIPTION:

Latitude 29°13'19",   Longitude 98°21'20"   NAD27

Bexar County, Texas, Hydrologic Unit 12100301

Drainage area: 1,743 square miles

Contributing drainage area: 1,743 square miles,

Datum of gage: 380.00 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1986-10-14	2026-01-24
Daily Data
Temperature, water, degrees Celsius	1987-07-13	2026-01-23	40746
Precipitation, total, inches	2023-01-25	2026-01-23	1094
Discharge, cubic feet per second	1962-10-01	2026-01-23	36432
Gage height, feet	1986-10-01	2026-01-23	27434
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-07-13	2026-01-23	40454
Dissolved oxygen, water, unfiltered, milligrams per liter	1987-07-13	2026-01-23	37389
pH, water, unfiltered, field, standard units	1987-08-31	2026-01-23	26234
pH, water, unfiltered, field, standard units	1987-07-13	1999-09-30	4148
Daily Statistics
Temperature, water, degrees Celsius	1987-07-13	2025-08-29	13439
Discharge, cubic feet per second	1962-10-01	2025-03-12	22809
Gage height, feet	1986-10-01	2025-03-12	13375
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-07-13	2025-08-29	13561
Dissolved oxygen, water, unfiltered, milligrams per liter	1987-07-13	2025-08-29	12347
pH, water, unfiltered, field, standard units	1987-07-13	1999-09-30	4148
Monthly Statistics
Temperature, water, degrees Celsius	1987-07	2025-08
Discharge, cubic feet per second	1962-10	2025-03
Gage height, feet	1986-10	2025-03
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987-07	2025-08
Dissolved oxygen, water, unfiltered, milligrams per liter	1987-07	2025-08
pH, water, unfiltered, field, standard units	1987-07	1999-09
Annual Statistics
Temperature, water, degrees Celsius	1987	2025
Discharge, cubic feet per second	1963	2025
Gage height, feet	1987	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1987	2025
Dissolved oxygen, water, unfiltered, milligrams per liter	1987	2025
pH, water, unfiltered, field, standard units	1987	1999
Peak streamflow	1963-02-18	2024-01-24	62
Field measurements	1962-05-16	2025-12-11	569
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1964-11-04	2023-12-20	668
Water-Year Summary	2005	2024	20
Revisions	Loading...

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