Hassayampa HUC8 15070103
A 3,810 km² sub-basin of the Lower Colorado region in AZ. 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
60
Moderate
Drought index
189
Moderate
Area in D2+
23.88%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
60%
p20 of record
Water assets
1,844
15 springs · 811 wells
USGS gauges (2)
- HASSAYAMPA RIVER NEAR MORRISTOWN, AZ095165000 cfsp10 · below normal
- HASSAYAMPA RIVER NEAR ARLINGTON, AZ0951700028 cfsp30 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 189 | 23.88 | 1/2 | p20 |
| 2026-10-19 | 189 | 23.88 | 1/2 | p30 |
| 2026-10-18 | 189 | 23.88 | 1/2 | p27 |
| 2026-10-17 | 189 | 23.88 | 1/2 | p24 |
| 2026-10-16 | 189 | 23.88 | 2/2 | p10 |
| 2026-10-15 | 219 | 32.4 | 2/2 | p16 |
| 2026-10-14 | 219 | 32.4 | 2/2 | p8 |
| 2026-10-13 | 219 | 32.4 | 1/2 | p46 |
| 2026-10-12 | 219 | 32.4 | 0/2 | p76 |
| 2026-10-11 | 219 | 32.4 | 1/2 | p31 |
| 2026-10-10 | 219 | 32.4 | 1/2 | p34 |
| 2026-10-09 | 219 | 32.4 | 1/2 | p41 |
| 2026-10-08 | 287 | 75.8 | 1/2 | p18 |
| 2026-10-07 | 287 | 75.8 | 1/2 | p23 |
Top water assets
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 69Hassayampa Riverriver
- 67Hassayampa Riverriver
- 67Hassayampa Riverriver