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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.

USGS 302610098213101 AZ-57-38-407

Blanco County, Texas
Hydrologic Unit Code 12090206
Latitude  30°26'10", Longitude  98°21'31" NAD83
Spring discharges from the Edwards-Trinity aquifer system (S500EDRTRN) national aquifer.
Spring discharges from the Pearsall Formation (218PRSL) local aquifer.

Period of record
Begin Date End Date Count
1941-01-01 1941-01-01 1

 
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