Lower Canadian-Walnut HUC8 11090202
A 4,747 km² sub-basin of the Arkansas-White-Red region in OK. 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
31
Stressed
Drought index
352
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
100%
of 6 reporting
Median flow
3%
p4 of record
Water assets
4,053
11 springs · 2,709 wells
USGS gauges (7)
- Canadian River at Norman, OK072290501 cfsp2 · much below normal
- Canadian River at Bridgeport, OK072285001 cfsp3 · much below normal
- Walnut Creek at Purcell, OK072293000 cfsp3 · much below normal
- Canadian River at Purcell, OK072292004 cfsp4 · much below normal
- Canadian River at Calvin, OK0723150012 cfsp14 · below normal
- Canadian River near Mustang, OK072289407 cfsp16 · below normal
- Canadian River near Cogar, Ok07228650no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 352 | 100 | 6/6 | p4 |
Top water assets
- 76Mustang, City Ofwell
- 76Braum Family, Lp, W Hwell
- 76Norman, City Of,well
- 76Mustang, City Ofwell
- 76Braum Family, Lp, W Hwell
- 76Mustang, City Ofwell
- 76Whb Cattle Lpriver
- 76Braum Family, Lp, W Hwell
- 76Lexington Assessment Reception Ctrwell
- 76Purcell Public Works Authoritywell