Ottawa-Stony HUC8 04100001
A 1,812 km² sub-basin of the Great Lakes region in MI, OH. 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
77
Healthy
Drought index
31
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
295%
p86 of record
Water assets
304
4 springs · 136 wells
USGS gauges (2)
- Ottawa River at University of Toledo, Toledo OH0417700041 cfsp86 · above normal
- MUDDY CREEK AT BELLETERRE RD NR ERIE, MI041766178 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 31 | 0 | 0/1 | p86 |
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