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Upper Guadalupe HUC8 12100201

A 3,711 km² sub-basin of the Texas-Gulf region in TX. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.

Health score
75
Healthy
Drought index
14
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
25%
of 8 reporting
Median flow
109%
p52 of record
Water assets
1,807
259 springs · 637 wells

USGS gauges (9)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-09-071402/8p52

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