The Tehama-Colusa Canal Authority (TCCA) is a Joint Powers Authority comprised of 17 Central Valley Project water contractors. The service area spans four counties (Tehama, Glenn, Colusa, and Yolo) along the west side of the Sacramento Valley, providing irrigation water to farmers growing a variety of permanent and annual crops. TCCA operates and maintains the 140 mile Tehama-Colusa and Corning canals irrigation water supply system. The service area is approximately 150,000 acres, producing over $250 million in crops per year, and contributing $1 billion to the regional economy annually.
The mission of the Tehama-Colusa Canal Authority is to secure, protect and develop dependable and affordable sources of water, and to operate, maintain and deliver the works essential to deliver such water.