Upper Cache HUC8 18020116
A 3,017 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
73
Moderate
Drought index
94
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
20%
of 5 reporting
Median flow
121%
p48 of record
Water assets
652
5 springs · 181 wells
USGS gauges (12)
- CACHE C A YOLO CA114525000 cfsp10 · below normal
- NF CACHE C NR CLEARLAKE OAKS CA1145130012 cfsp25 · normal
- CACHE C A RUMSEY CA11451800379 cfsp48 · normal
- KELSEY C NR KELSEYVILLE CA114495004 cfsp66 · normal
- CACHE C NR LOWER LAKE CA11451000375 cfsp80 · above normal
- SF SCOTTS C NR LAKEPORT CA11448750no readingno long-term record
- SCOTTS C BL SF SCOTTS C NR LAKEPORT CA11448800no readingno long-term record
- CLOVER C BYPASS A ELK MTN RD NR UPPER LAKE CA11449235no readingno long-term record
- SCOTTS C AB STATE ROUTE 29 A UPPER LAKE CA11449255no readingno long-term record
- COLE C A KELSEYVILLE CA11449820no readingno long-term record
- NF CACHE C A HOUGH SPRING NR CLEARLAKE OAKS CA11451100no readingno long-term record
- BEAR C AB HOLSTEN CHIMNEY CYN NR RUMSEY CA11451715no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 94 | 0 | 1/5 | p48 |
Top water assets
- 67Rocky Creekriver
- 67Cole Creekriver
- 67Alley Creekriver
- 67West Fork Spanish Creekriver
- 67North Fork Cache Creekriver
- 67Indian Valleyreservoir
- 67South Fork Bartlett Creekriver
- 67Rocky Creekriver
- 67Twin Valley Creekriver
- 67Soap Creekriver