Reagan-Sanderson HUC8 13040208
A 6,332 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
57
Moderate
Drought index
183
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
40
6 springs · 19 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 183 | 0 | — | — |
| 2026-10-20 | 183 | 0 | — | — |
| 2026-10-19 | 183 | 0 | — | — |
| 2026-10-18 | 183 | 0 | — | — |
| 2026-10-17 | 183 | 0 | — | — |
| 2026-10-16 | 183 | 0 | — | — |
| 2026-10-15 | 183 | 0 | — | — |
| 2026-10-14 | 183 | 0 | — | — |
| 2026-10-13 | 183 | 0 | — | — |
| 2026-10-12 | 183 | 0 | — | — |
| 2026-10-11 | 183 | 0 | — | — |
| 2026-10-10 | 183 | 0 | — | — |
| 2026-10-09 | 183 | 0 | — | — |
| 2026-10-08 | 263 | 63.15 | — | — |
Top water assets
- 66Sanderson Canyon Ws Scs Site 9 Damreservoir
- 66Sanderson Canyon Ws Scs Site 4 Damreservoir
- 66Sanderson Canyon Ws Scs Site 3 Damreservoir
- 66Sanderson Canyon Ws Scs Site 5 Damreservoir
- 66Sanderson Canyon Ws Scs Site 10 Damreservoir
- 66Sanderson Canyon Ws Scs Site 7 Damreservoir
- 66Sanderson Canyon Ws Scs Site 2 Damreservoir
- 66Sanderson Canyon Ws Scs Site 1 Damreservoir
- 66Sanderson Canyon Ws Scs Site 11 Damreservoir
- 66Sanderson Canyon Ws Scs Site 6 Damreservoir