USGS 08150700 Llano Rv nr Mason, TX

PROVISIONAL DATA SUBJECT TO REVISION

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Funding for this site is provided by the cooperators / programs below:
Click to go to the Lower Colorado River Authority web page

Lower Colorado River Authority

 Click to go to the Cooperative Matching Funds web page

Cooperative Matching Funds
 
Rainfall Disclaimer

retransmission, forecasts and summary of this location by the National Weather Service
Retransmission, forecasts and summary by the National Weather Service

Datum of gage has been determined to be 1225.60 feet above NAVD 1988. To obtain water-surface elevations in NAVD 1988 add 1225.60 feet to gage height values.

This station managed by the San Angelo Field Unit.

Available Parameters Available Period
  
2025-11-20  2026-03-20
1997-10-02  2026-03-20
2007-10-01  2026-03-20







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: 65.2 03-20-2026   07:00 CDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Mar 20 based on 54 water years of record more
Min
(2025)		 Most Recent
Instantaneous
Value Mar 20		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(2020)
51.0 65.2 104 173 237 243 1480

Gage height, feet, [Gage Height - Primary]
Most recent instantaneous value: 5.28 03-20-2026   07:00 CDT
Graph of Gage height, feet, [Gage Height - Primary]

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