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Watershed Summary more >>
Current Conditions more >>
J-17 Well 663.5 msl (+0.0)
Guadalupe @ Spring Branch 83 cfs (+0)
Canyon Reservoir 905.31 msl (-0.03)
Guadalupe @ Sattler 87 cfs (+0)
Comal Springs 297 cfs (+11)
San Marcos Springs 161 cfs (+1)
Guadalupe @ Gonzales 802 cfs (+17)
Guadalupe @ Victoria 851 cfs (+57)
Coleto Reservoir 96.82 msl (+0.04)
Guadalupe @ Tivoli 1440 cfs (+70)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 10.24%
Comal Springs 34.90%
San Marcos Springs 18.92%
Natural Base Flow 35.95%
Percentages reflect sources. Losses and diversions not included.
Last 28 days at:

Preservation Matters

The Guadalupe-Blanco River Trust was founded in 2001 to conserve land in the Guadalupe River Watershed.

San Antonio Bay Foundation

Founded in 2008 to protect and preserve the Bay and Estuary at the end of the Guadalupe River Basin.

Canyon Lake Gorge

Within days following the Flood of 2002, the floodwaters carved a gorge into the landscape below the Canyon Lake Spillway.

Guadalupe River Foundation

Formed to establish a system for funding construction, operation and maintenance of environmental learning centers and programs.

© 1998 Guadalupe-Blanco River Authority

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