Thousand Oaks Reservoir Replacement

Calleguas Municipal Water District is replacing the above-ground  7 million gallon steel tank at 568 Lone Oak Drive in Thousand Oaks with two buried concrete reservoirs. The steel tank was built in the early 1960s, has begun to corrode, and needs to be upgraded to meet new seismic standards. In order to coordinate the project with the local scenic vistas, the tank will be removed and the new reservoirs will be buried. Calleguas needs a certain amount of storage in order to provide adequate water supplies to our customers, which are the retail water providers in the City of Thousand Oaks. In order to maintain necessary storage during construction, Calleguas needs to build one reservoir, remove the existing tank, and then build the second reservoir.  The two reservoirs together will have the same storage capacity as the existing tank.

 The project also includes installation of a new 20-inch drain line in Lone Oak Drive, which will allow the tank to drain into a storm drain in Hillcrest should the need arise. When completed, the exposed above-ground steel tank will be replaced with two buried reservoirs, which will be covered with soil and landscaped. The completed site will be more attractive and will fit in with the surrounding hillside community.       

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Thousand Oaks Reservoir  Brochure

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Salinity Management Pipeline

The Calleguas Salinity Management Project (SMP) is a regional pipeline that will collect salty water generated by groundwater desalting facilities and excess recycled water and convey that water for re-use. Any unused salty water will be safely discharged to the ocean, where natural salt levels are much higher.   

This phase of the SMP will be 48 inches in diameter and comprised of steel pipe.  The pipeline will connect to a previously-completed segment at Edison Dr. and Hueneme Rd. just outside the City of Oxnard boundary.  The pipeline will proceed westward along Hueneme Rd. through the Cities of Oxnard and Port Hueneme to Surfside Dr., where the pipeline will turn southward along Surfside Dr. The pipeline will terminate at its connection with the Hueneme Outfall near Port Hueneme Beach Park Parking Lot “A.”  A 12 inch diameter steel pipe segment will connect the SMP with the Port Hueneme Water Agency’s Brackish Water Reclamation Demonstration Facility along Perkins Rd. in Oxnard. Crossings of railroads, flood control channels, and certain congested intersections will be accomplished via a tunneling method.

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SMP Brochure
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SMP Construction Brochure

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Update

Turnout Automation and Vault Improvements

Calleguas delivers water to its retail purveyors via nearly 100 turnouts, which are essentially meter stations. Many of the turnouts are more than 40 years old and have not been upgraded since their initial construction.  Currently, the turnouts are equipped with paper circular pen charts that track water deliveries.  These charts must be manually collected weekly and then manually interpreted to calculate water usage and bill the purveyors. The project consists of replacing those outdated circular charts and accompanying obsolete electronic equipment with new programmable logic controller (PLC)-based equipment at each of the turnouts. The PLC-based equipment at each turnout will communicate with the Supervisory Control and Data Acquisition (SCADA) system via cellular modem. The project also includes an internet-based interface from which individual purveyors can monitor their water usage in near real-time.

 The project also includes replacing concrete pads, access hatches, manholes, and ladders at turnout sites where those facilities are in need of repair or do not meet current safety standards.  Additionally, at six locations in Thousand Oaks, additional structural rehabilitation and repair will be performed at the turnout vaults.

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Turnout Automation & Vault Improvements Brochure