State Water Interconnection Project

The State Water Interconnection Project, identified by solicitation number 2025100013512, is a forecast project led by the City of San Buenaventura in California. The project involves the construction of an approximately 7-mile pipeline originating at Henderson Road in the City of Ventura, traversing unincorporated Ventura County, and ending near the intersection of Camino Tierra Santa and Via Zamora in the City of Camarillo. The primary objective is to create an interconnection pipeline to enable the delivery of State Water Project water by wheeling it through the Metropolitan Water District of Southern California and Calleguas Municipal Water District systems. This infrastructure will facilitate direct or in-lieu delivery to the United Water Conservation District and Casitas Municipal Water District, while also allowing the City of Ventura to provide water to Calleguas during imported water supply outages. The project is governed by the State Water Interconnection Project Final Environmental Impact Report certified in August 2019. Recent updates via Addendum No. 2, approved on October 21, 2025, have modified and added transportation mitigation measures to avoid significant construction traffic impacts and introduced a new biological resources mitigation measure to minimize the removal of vegetation. These updates ensure compliance with the California Environmental Quality Act. The project falls under NAICS code 237110, and the primary point of contact is Associate Engineer William Trax.