The East Contra Costa Irrigation District (ECCID) is an independent special district established in 1926 under the Irrigation District Law (California Water Code §20500 et seq.). The District’s boundaries encompass approximately 40 square miles and include the City of Brentwood, the unincorporated community of Knightsen, portions of the Cities of Oakley and Antioch, and some unincorporated area south of Antioch and east of Brentwood.

The District supplies irrigation water for agricultural, landscape and recreational use as well as raw water for treatment and delivery to urban areas. ECCID has a 1912 appropriative right to divert water from Indian Slough on Old River, and therefore has infrastructure and delivery costs The District diverts water from the Indian Slough on Old River. Water is conveyed through the Main Canal that extends from the Indian Slough intake area northwest of Discovery Bay to approximately 8,000 feet west of Walnut Boulevard in Brentwood. A total of seven pump stations are located along the canal. A grid of canals, pipelines, and ditches runs throughout the District. Deliveries to approximately 50 percent of the agricultural accounts are measured. The District has an ongoing program to add measuring devices to all customers eventually.

For non-agricultural accounts, the District provides a single delivery point to each customer.The customer is responsible to install, operate, and maintain water conveyance facilities to the property to be irrigated. All non-agricultural accounts must be metered.

The District retains the right to conduct periodic testing of wastewater discharged into the District’s system at the expense of the discharger.

The original irrigation and drainage system was built in 1911. The District provides regular maintenance activities such as pipeline and structural repairs, canal cleaning, and pest control for squirrels and weeds.

The District identifies capital projects in its annual budget in order to maintain the system and ensure reliability. the District has the resources to support additional infrastructure. The District’s water system infrastructure includes wells, pump stations and a conveyance system of canals, ditches, and pipelines. Water is conveyed through the Main Canal for delivery to agricultural accounts. For non-agricultural accounts, the District provides a single delivery point to each customer and the customer is responsible to install, operate, and maintain water conveyance facilities to the property to be irrigated.