Williamson HUC8 18010201
A 3,726 km² sub-basin of the California region in OR. 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
49
Stressed
Drought index
233
Severe
Area in D2+
32.68%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
87%
p10 of record
Water assets
328
73 springs · 111 wells
USGS gauges (7)
- WILLIAMSON RIVER NEAR KLAMATH AGENCY, OR114935000 cfsp10 · below normal
- WILLIAMSON RIVER BLW SPRAGUE RIVER NR CHILOQUIN,OR11502500529 cfsp10 · below normal
- IRVING CREEK NEAR LENZ, OR114914501 cfsno long-term record
- JACKSON CREEK NEAR LENZ, OR114914701 cfsno long-term record
- MILLER CREEK NEAR BEAVER MARSH, OR114919502 cfsno long-term record
- SAND CREEK BLW SAND CREEK CANAL NR CHINCHALO, OR114925509 cfsno long-term record
- SCOTT CREEK BLW SAND CREEK CANAL NR CHINCHALO, OR114931001 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-21 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-20 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-19 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-18 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-17 | 233 | 32.68 | 2/2 | p10 |
| 2026-10-16 | 233 | 32.68 | 2/2 | p11 |
| 2026-10-15 | 233 | 32.68 | 2/2 | p11 |
| 2026-10-14 | 233 | 32.68 | 2/2 | p11 |
| 2026-10-13 | 233 | 32.68 | 2/2 | p12 |
| 2026-10-12 | 233 | 32.68 | 2/2 | p13 |
| 2026-10-11 | 233 | 32.68 | 2/2 | p14 |
| 2026-10-10 | 233 | 32.68 | 2/2 | p15 |
| 2026-10-09 | 233 | 32.68 | 2/2 | p14 |
Top water assets
- 76A Well — Irrigationwell
- 76Jack Creek — Irrigationspring
- 76Jack Creek — Irrigationspring
- 76Jack Creek — Irrigationspring
- 76Jack Creek — Irrigationspring
- 73Sprague River — Irrigationspring
- 73A Well — Irrigation And Domesticwell
- 73A Well — Irrigationwell
- 69Sink Creekriver
- 69Jack Creekriver