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Ponca HUC8 10170104

A 2,137 km² sub-basin of the Missouri region in NE, SD. Drought coverage is from the US Drought Monitor; streamflow classes place each USGS gauge's latest reading against its own day-of-year record.

Health score
76
Healthy
Drought index
—
—
Area in D2+
—
Gauges below normal
0%
of 1 reporting
Median flow
60%
p38 of record
Water assets
910
7 springs · 404 wells

USGS gauges (1)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-10-21——0/1p38
2026-10-20——0/1p40
2026-10-19——0/1p40
2026-10-18——0/1p39
2026-10-17——0/1p43
2026-10-16——0/1p42
2026-10-15——0/1p42
2026-10-14——0/1p45
2026-10-13——0/1p45
2026-10-12——0/1p48
2026-10-11——0/1p50
2026-10-10——0/1p51
2026-10-09——0/1p51
2026-10-08——0/1p51

Top water assets