USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

313243094034600 WT-37-32-504

San Augustine County, Texas

Hydrologic Unit Code 12010004

Latitude 31°32'45", Longitude 94°03'47" NAD83

Spring discharges from the Texas coastal uplands aquifer system (S100TXCLUP) national aquifer.

Spring discharges from the Carrizo Sand (124CRRZ) local aquifer.

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Texas Water Data Support Team
Page Last Modified: 2026-01-03 18:38:26 EST
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