5-2024(B) - Raw Water Conveyance Tunnel Inspection

The District utilizes a 70-mile raw water conveyance system that continuously supplies two, three million gallon per day water treatment plants and delivers raw water to seasonal irrigation customers. The system is constructed with open (unlined and lined canal), pipe, culverts, natural features, syphons, and a tunnel. The tunnel located generally between the communities of Quinette and Volcanoville spans approximately 4,900 feet and is identified a critical District infrastructure. District’s objective is for qualified professional to inspect the tunnel and provide a report detailing any findings, condition assets and repair or rehabilitation recommendations.