Amistad Reservoir HUC8 13040212
A 7,162 km² sub-basin of the Rio Grande region in MX, TX. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
51
Moderate
Drought index
211
Severe
Area in D2+
11.09%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
13
7 springs · 5 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 211 | 11.09 | — | — |
| 2026-10-18 | 211 | 11.09 | — | — |
| 2026-10-17 | 211 | 11.09 | — | — |
| 2026-10-16 | 211 | 11.09 | — | — |
| 2026-10-15 | 200 | 0 | — | — |
| 2026-10-14 | 200 | 0 | — | — |
| 2026-10-13 | 200 | 0 | — | — |
| 2026-10-12 | 200 | 0 | — | — |
| 2026-10-11 | 200 | 0 | — | — |
| 2026-10-10 | 200 | 0 | — | — |
| 2026-10-09 | 200 | 0 | — | — |
| 2026-10-08 | 299 | 99.4 | — | — |
| 2026-10-07 | 299 | 99.4 | — | — |
| 2026-10-06 | 299 | 99.4 | — | — |
Top water assets
- 54Yr-71-22-501well
- 53Yr-71-12-502well
- 47Yr-71-23-502well
- 43YR-71-11-6xx (TH1 Borehole)well
- 42YR-71-12-501spring
- 42YR-71-12-504spring
- 42Goodenough Spgs nr Comstock, TXspring
- 42RP-70-36-102spring
- 42Rio Grande At Foster Rh Nr Langtry, Txriver
- 42Yr-71-23-506well