Yamhill HUC8 17090008
A 1,999 km² sub-basin of the Pacific Northwest region in OR. 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
61
Moderate
Drought index
131
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
548%
p92 of record
Water assets
466
58 springs · 219 wells
USGS gauges (1)
- SOUTH YAMHILL RIVER AT MCMINNVILLE, OR14194150148 cfsp92 · much above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 131 | 0 | 0/1 | p92 |
Top water assets
- 73A Spring — Domesticspring
- 73A Well — Nursery Useswell
- 73A Well — Nursery Useswell
- 73Baker Creek — Supplemental Irrigationspring
- 73Berry Creek — Supplemental Irrigationspring
- 73A Reservoir — Irrigationspring
- 66A Well — Irrigationwell
- 66A Well — Irrigationwell
- 66Marx Brothers Reservoirreservoir
- 66Well 1 — Irrigationwell