Storage Levels Hydrology Weather

California South Fork American Watershed

Union Valley

June 6 2023

239,427 acre-ft

-0.05% today
97% of Normal Normal

Water storage levels at Union Valley are currently 239,427 acre-ft, about 97% of normal. The average for this time of year is approximately 249,205.26acre-ft.

Maximum recorded Storage since record keeping began in 2003 was 2005-07-02 when levels reached 275,518 acre-ft. Lowest recorded Storage was 2021-10-22 when levels receded to 90,130 acre-ft.

Union Valley is a reservoir located in El Dorado County, California. The reservoir was created in 1963 with the construction of the Union Valley Dam, which is part of the American River watershed. The hydrology of Union Valley is primarily fed by the Rubicon River, and the reservoir provides water for hydroelectric power generation, irrigation, and municipal use. The area is also popular for recreational activities such as fishing, boating, camping, and hiking. The surrounding forests and hills are home to a diverse range of wildlife, including deer, elk, and black bears. The Union Valley Snowpack, which is a significant provider of water to the region, is particularly important for the agricultural community, with crops such as potatoes, grapes, and apples requiring water from the snowpack for irrigation.

Geolocation -120.438, 38.864
Elevation 4,870 ft
Storage 24hr Change -0.05%
Percent of Normal 97%
Minimum 90,130 acre-ft
Maximum 275,518 acre-ft
Average 249,205 acre-ft
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