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Camanche Reservoir

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Camanche Reservoir

Camanche Reservoir is an artificial lake in the San Joaquin Valley in California in the United States, at the juncture of Amador, Calaveras, and San Joaquin counties. Its waters are impounded by Camanche Dam, which was completed in 1963. Camanche Reservoir is a source of water for industrial and municipal purposes and also provides flood control.

The lake was named after the former town of Camanche that now lies beneath its waters. The lake has also been called Camanche Lake and Lake Camanche. Camanche Reservoir has recreation areas throughout the lake, which are mainly located on the North and South shores.

Camanche Reservoir North Shore is located in Amador County. It contains a population of approximately 1,000 people. The North Shore hosts some of the recreation features of Camanche Reservoir, including close to 800 campsites. The North Shore also allows RV camping as well as tent camping. There is a North Shore Marina Store located here including a small café.

Camanche Reservoir South Shore also hosts a large portion of Lake Camanche's recreation features and amenities. The South Shore includes a store located in the middle of the recreation area. It also contains the two RV parks which offer full hook-ups, (water, electric, and sewer) and an amphitheater where numerous events are held.

The lake is fed by the headwaters of the Mokelumne River, including tributaries such as Rabbit Creek and Camanche Creek. The Camanche Reservoir is fed primarily from the Mokelumne River. The water entering Camanche Reservoir is influenced by the amount of water released from the Pardee Dam. Camanche reservoir typically fills to capacity prior to summer months. This occurs from the melting of snowpack during the months of May–July (melt flow season) which increase the amount of water flowing through the Mokelumne River. During summer months, Camanche Reservoir releases water continuously. This allows for constant reliable downstream irrigation.

The Camanche Reservoir has the ability to hold 417,120 acre feet (AF) of water at maximum capacity. Severe drought experienced in California lead to the water levels declining from the period of 2011 to 2015. The reservoir had the lowest water level since being filled in August, 2015, with the water volume in the reservoir decreasing to 81,940 AF, approximately 19.6% of the reservoirs maximum capacity. Water levels increased through the winter months of 2015-2016 reaching 240,340 AF during April, 2016. Record precipitation in Northern California during the late storm season of 2017 brought relief. Through the 2024 storm season, Lake Camanche, like most reservoirs in California at the time, remained above historical levels, with no expected drought conditions to worsen through 2026.

Ground water sources surrounding the reservoir typically flow in similar patterns to the surface streams. Due to the geology of the area the ground water sources typically do not exceed depths of 300 feet and rarely produce water near 600 feet.

With the creation of several reservoirs along the Mokelumne River many populations of fish species were impacted. Because of this the Mokelumne River Hatchery was created down river of the Camanche Reservoir. This hatchery was built in 1963 to help recover the fish spawning levels that traditionally existed in the river. The fish hatchery was remodeled and updated in 2002. This remodeling involved enlarging the rearing space located at the site. This was done to allow for the promotion of fish health and to increase the survival rates of the fish raised at the site. These improvements to the facility have allowed for the returning salmon to increase by 3,028 during the period of 1998-2003. There are two main species that are raised at the Mokelumne River Hatchery. These species are the Chinook salmon and the Steelhead trout.

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