Buffalo-Eighteenmile HUC8 04120103
A 1,850 km² sub-basin of the Great Lakes region in NY. 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
75
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
225%
p82 of record
Water assets
748
2 springs · 483 wells
USGS gauges (6)
- BUFFALO CREEK AT GARDENVILLE NY0421450043 cfsp81 · above normal
- CAZENOVIA CREEK AT EBENEZER NY0421550043 cfsp82 · above normal
- CAYUGA CREEK NEAR LANCASTER NY0421500038 cfsp92 · much above normal
- BIG SISTER CREEK AT EVANS CENTER NY042140606 cfsno long-term record
- EIGHTEENMILE CREEK AT HAMBURG NY042142221014 cfsno long-term record
- S BR EIGHTEENMILE CR AT BLEY RD AT EDEN VALLEY042142318 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/3 | p82 |
Top water assets
- 66Green Lake Damreservoir
- 65Cazenovia Creek At Ebenezer Nyriver
- 65Hickory Lake Damreservoir
- 65Buffalo Creek At Gardenville Nyriver
- 65Eighteenmile Creek At Hamburg Nyriver
- 65Camp Holland Hills #2 Damreservoir
- 65S Br Eighteenmile Cr At Bley Rd At Eden Valleyriver
- 65Mckinley Mall Retention Pond Damreservoir
- 65Camp Schoellkopf #2 Damreservoir
- 65Warren Bippert Pond Damreservoir