Santa Ynez HUC8 18060010
A 2,322 km² sub-basin of the California region in CA. 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
65
Moderate
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
70%
of 10 reporting
Median flow
350%
p10 of record
Water assets
2,667
30 springs · 2,565 wells
USGS gauges (15)
- GIBRALTAR DAM RELEASE WEIR A GIBRALTAR DAM CA111220100 cfsp10 · below normal
- SANTA YNEZ R BL GIBRALTAR DAM NR SANTA BARBARA CA111230000 cfsp10 · below normal
- SANTA YNEZ R BL LOS LAURLS CYN NR SNTA YNEZ CA111235000 cfsp10 · below normal
- SANTA CRUZ C NR SANTA YNEZ CA111245000 cfsp10 · below normal
- ALAMO PINTADO C NR SOLVANG CA111282500 cfsp10 · below normal
- ZACA C NR BUELLTON CA111298000 cfsp10 · below normal
- GIBRALTAR DAM DIV WEIR A GIBRALTAR DAM CA111219000 cfsp14 · below normal
- SALSIPUEDES C NR LOMPOC CA111325001 cfsp61 · normal
- SANTA YNEZ R A SOLVANG CA1112850017 cfsp78 · above normal
- SANTA YNEZ R A NARROWS NR LOMPOC CA111330006 cfsp82 · above normal
- HILTON CYN C NR SANTA YNEZ CA111256000 cfsno long-term record
- HILTON CYN C 0.25 MI BL BRADBURY DAM NR SANTA YNEZ111256056 cfsno long-term record
- SANTA YNEZ R NR SANTA YNEZ CA1112600012 cfsno long-term record
- SANTA YNEZ R A HWY 154 NR SANTA YNEZ CA1112640021 cfsno long-term record
- SANTA YNEZ R A H ST NR LOMPOC CA111340000 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 7/10 | p10 |
Top water assets
- 67Cachuma Creekriver
- 67Juncalreservoir
- 67Mono Creekriver
- 67Indian Creekriver
- 67Bradbury Damreservoir
- 67Mono Creekriver
- 65Santa Ynez R A H St Nr Lompoc Cariver
- 65Santa Ynez R Bl Los Laurls Cyn Nr Snta Ynez Cariver
- 65Hilton Cyn C 0.25 Mi Bl Bradbury Dam Nr Santa Ynezriver
- 65Santa Ynez R Nr Santa Ynez Cariver