Pilarcitos Lk Nr Hillsborough Ca
RESERVOIR REPORT
September 22 2023691 ft
0% today100% of Normal • Normal
Water lake or reservoir water surface elevation above ngvd 1929, ft levels at Pilarcitos Lk Nr Hillsborough Ca are currently 691 ft, about 100% of normal. The average for this time of year is approximately 687.56ft. Maximum recorded Lake or reservoir water surface elevation above NGVD 1929, ft since record keeping began in 2007 was 2017-01-11 when levels reached 697.06 ft. Lowest recorded Lake or reservoir water surface elevation above NGVD 1929, ft was 2021-10-20 when levels receded to 675.75 ft. View historical levels.
Pilarcitos Lake, located near Hillsborough, California, has a rich history dating back to the early 1900s when it was constructed as a source of drinking water for San Francisco. The lake is fed by a system of streams and has a capacity of approximately 13 billion gallons. The hydrology of the lake is unique as it relies heavily on snowpack in the surrounding mountains for its water supply. Specific surface flows are controlled by a network of dams and pipelines that carry the water to San Francisco. In addition to its importance as a water source, the lake also serves as a recreational area for activities such as fishing and hiking. Agricultural uses are limited due to the lake's designation as a protected watershed.

Geolocation | -122.422, 37.549 |
Elevation | 736.38 ft |
Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change | 0% |
Percent of Normal | 100% |
Minimum |
675.75 ft
2021-10-20 |
Maximum |
697.06 ft
2017-01-11 |
Average | 688 ft |
AREA SURFACE FLOWS
Streamgauge | Streamflow | Stage |
---|---|---|
ALAMEDA C AB DIV DAM NR SUNOL CA | 0 cfs | 1.7 ft |
ARROYO HONDO NR SAN JOSE CA | 3 cfs | 3.3 ft |
SANTA ROSA C A WILLOWSIDE RD NR SANTA ROSA CA | 2 cfs | 57.4 ft |
RECLAMATION DITCH NR SALINAS CA | 1 cfs | 0.7 ft |
PESCADERO C NR PESCADERO CA | 4 cfs | 1.6 ft |
SAN GREGORIO C A SAN GREGORIO CA | 3 cfs | 3.7 ft |
CALAVERAS C NR SUNOL CA | 13 cfs | 4.5 ft |