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Calls for a comprehensive statewide water management system (complementing the extensive, but primarily irrigation-based Central Valley Project) led to the creation of the California Department of Water Resources in 1956. The following year, the preliminary studies were compiled into the extensive California Water Plan, or Bulletin No. 3.
In time, this resulted in major land subsidence by the 1970s with local areas having 0.30 to 8.5 m (1 to 28 ft) of subsidence. With the creation and use of the California Aqueduct along these regions, surface water being transported put a halt on significant compaction and a recovery in ground water levels now with less ground water pumping. [22]
California's Department of Water Resources set its initial water allocation for the State Water Project at 5% — a level that could change in the coming months depending on the weather.
California American Water Company: 1949 Earth 148 45 1,775 [8] 2,189 Los Vaqueros Reservoir (expanded) Los Vaqueros Dam: off stream reservoir storing Delta diversions:
The dam forms a reservoir called Shasta Lake, which is the largest man-made lake and third largest body of water in California with its capacity of 4,552,000 acre-feet (5,615 GL) [48] and surface area of 29,740 acres (12,040 ha) at maximum pool. The lake extends for 15.3 miles (24.6 km) up the Sacramento River and branches for more than 21 ...
Lake Oroville, the State Water Project's largest reservoir, was at 134% of its average amount to date, but the department noted that the Northern California headwaters of the State Water Project ...
Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley.At 770 feet (235 m) high, it is the tallest dam in the U.S. [8] and serves mainly for water supply, hydroelectricity generation, and flood control.
The total volume of construction materials is 326,000 cubic yards (249,000 m 3). [3] The capacity of the reservoir is 1,602,000 acre⋅ft (1.976 × 10 9 m 3), with a full surface area of 20,700 acres (8,400 ha). The maximum operating elevation is 440 ft (130 m); any higher water levels will flow over the dam's spillway.