The price tag for Sites Reservoir, proposed to be located in the rural ranchlands of Colusa County 70 miles northwest of Sacramento, has increased from $4.5 billion to at least $6.2 billion, and potentially as much as $6.8 billion, the project’s planners confirmed Wednesday.

The plan to build one of California's largest reservoirs in decades may now cost billions more dollars than expected, planners say. Sites Reservoir, set to be located near Maxwell in the Sacramento Valley,

The price tag for Sites Reservoir, proposed to be located in the rural ranchlands of Colusa County 70 miles northwest of Sacramento, have increased from $4.5 billion to at least $6.2 billion, and potentially as much as $6.