Glenn-Colusa Irrigation District (GCID) is a non-profit agricultural water distribution and management company serving about 175,000 acres, with around 140,000 acres being farmed. Established in 1883, GCID has been responsible for managing the largest irrigation district in the Sacramento Valley while prioritizing sustainability, habitat preservation, and water conservation. The district's water supply is managed through a complex system of canals, pumps, and distribution lines, ensuring a reliable water supply to its members. In addition to its core business, GCID also offers a variety of services, including water rights management, water storage, and wildlife habitat preservation.