Water-surface elevation
492.2 ftOlder report · 2026-09-25Texas Water Development Board
Published or effective 2026-09-25. Water Around last checked 2026-09-26T06:48:15.885161+00:00. This report may not describe conditions today.
RESERVOIR
Lake Austin
A source connected to a public-water supply network. Conditions at the source do not establish water availability at your home.
Open in the atlas →Latest available measurements
Latest measurements
TWDB estimated daily averages, reported as provisional. Storage is derived from source rating curves or supplied by the operator; total and conservation storage are different quantities. Percent full uses the capacity reported for that day. Source estimates may include upstream interpolation. Water Around adds no interpolation. Datum and capacity changes can affect comparisons; these are water-quantity records, not tests of drinking-water safety.
Observed 2026-09-25 · Provisional estimated daily average; source datum: NGVD29 -0.04Texas Water Development Board
Total stored water
23,690 acre-ftOlder report · 2026-09-25Texas Water Development Board
Published or effective 2026-09-25. Water Around last checked 2026-09-26T06:48:15.885161+00:00. This report may not describe conditions today.
Conservation storage
23,081 acre-ftOlder report · 2026-09-25Texas Water Development Board
Published or effective 2026-09-25. Water Around last checked 2026-09-26T06:48:15.885161+00:00. This report may not describe conditions today.
Conservation capacity filled
96.3 %Older report · 2026-09-25Texas Water Development Board
Published or effective 2026-09-25. Water Around last checked 2026-09-26T06:48:15.885161+00:00. This report may not describe conditions today.
Lake Austin measurement history
Daily source records from 1966-01-01 through 2026-09-25. Explore how these measurements changed over time. These measurements describe water quantity, not drinking-water safety.
Download the published daily history · 1.1 MB