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 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.

Health score

Moderate

Drought index

100

Moderate

Area in D2+

0% exceptional (D4)

Gauges below normal

29%

of 7 reporting

Median flow

87%

p32 of record

Water assets

652

5 springs · 181 wells

USGS gauges (12)

CACHE C A YOLO CA
114525000 cfsp10 · below normal
NF CACHE C A HOUGH SPRING NR CLEARLAKE OAKS CA
114511000 cfsp13 · below normal
BEAR C AB HOLSTEN CHIMNEY CYN NR RUMSEY CA
114517151 cfsp30 · normal
KELSEY C NR KELSEYVILLE CA
114495004 cfsp32 · normal
NF CACHE C NR CLEARLAKE OAKS CA
1145130011 cfsp50 · normal
CACHE C A RUMSEY CA
11451800118 cfsp79 · above normal
CACHE C NR LOWER LAKE CA
11451000136 cfsp95 · much above normal
SF SCOTTS C NR LAKEPORT CA
11448750no readingno long-term record
SCOTTS C BL SF SCOTTS C NR LAKEPORT CA
11448800no readingno long-term record
CLOVER C BYPASS A ELK MTN RD NR UPPER LAKE CA
114492350 cfsno long-term record
SCOTTS C AB STATE ROUTE 29 A UPPER LAKE CA
114492555 cfsno long-term record
COLE C A KELSEYVILLE CA
114498200 cfsno long-term record

Recent conditions

Date	DSCI	Gauges low	Flow pct
2026-10-19	100	2/7	p32
2026-10-18	100	2/7	p33
2026-10-17	100	2/7	p35
2026-10-16	100	1/7	p41
2026-10-15	100	1/7	p44
2026-10-14	100	1/7	p44
2026-10-13	100	1/7	p43
2026-10-12	100	2/7	p41
2026-10-11	100	2/7	p35
2026-10-10	100	2/7	p34
2026-10-09	100	2/7	p39
2026-10-08	100	2/7	p42
2026-10-07	100	2/7	p42
2026-10-06	100	2/7	p40

Top water assets

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