This project will demolish the existing Reservoir Management System (RMS) facilities and construct new RMS facilities at the East Aliso Creek, Mathis-Nellie Gail, and Seville reservoir sites.
The 2017-18 Valve Replacements Project provides funding for the replacement of valves by District staff and outside contract services. The outside contract for construction services will replace key valves that have been identified by District staff and prioritized as part of the system wide valve replacement program.
This project will provide a secondary operations yard utilized for material bins, pipe storage and spoils material to accommodate the Districts current needs.
Orange County Transportation Authority (OCTA) will be constructing a passing siding track parallel to the existing main track between Camino Capistrano and Oso Creek in the area of Saddleback Church Rancho Capistrano in the City of San Juan Capistrano. In some locations, the new passing siding track will be located in closer proximity to the Oso-Trabuco pipeline.
This project is a result of the improvement recommendations from Staff’s condition assessment of the Central Intertie Pipeline. MFL (Magnetic Flux Leakage) inspection was utilized for the detection and verification of repairs that will be needed.
The project includes the demolition of the existing pumps, mechanical piping and electrical equipment, including hazardous material abatement; rehabilitation of the wet well, including removal of the existing lining; concrete repairs and application of a new spray-on lining system; and the installation of new pumps, mechanical piping and electrical equipment.
This program encompasses on-call services agreement to rehabilitate manholes throughout the District.
The project installs approximately 1,000 linear feet of 12-inch PVC pipe along Medical Center Road in the City of Mission Viejo. The project also installs a new pressure reducing station, service connections, and related valve replacements.
Work at the Aliso Hills Reservoir includes structural and corrosion repairs, tank operation and safety improvements (including spiral stairways and full perimeter guardrails), installation of a cathodic protection system, and re-coating of the interior and exterior of the reservoir.
Work at the El Dorado Reservoir includes structural and corrosion repairs, tank operation and safety improvements (including spiral stairways and full perimeter guardrails), installation of a cathodic protection system, and re-coating of the interior and exterior of the reservoir.
The Vault Removals project abandons twelve vaults within the potable water distribution system and two vaults within the recycled water distribution system. These vaults were initially used to meter flow or regulate pressure throughout the distribution system. District staff determined that the flow meters and pressure regulating valves within the vaults are no longer required for system operation. However, the piping and appurtenances within the vaults are necessary and due for replacement.
In 2016, a District-wide electrical system assessment was conducted at its pump and lift stations. Based on this assessment, Staff prioritized the recommended electrical work, determined these stations to be priorities, and scheduled replacement of the appropriate facilities.
In preparation for the upcoming Caltrans I-5 Widening project, the District is required to relocate its utilities that are in conflict with the project. This pipeline adjustment project will abandon and replace fire hydrants, water services, and sewer laterals within the widening area of the 5 Freeway and Avery Parkway.
This project will demolish the existing Reservoir Management Systems (RMS) facilities and construct new RMS facilities at these five reservoir sites. The new RMS facilities will consist of new block buildings, sodium hypochlorite and ammonia storage and metering pumps, reservoir mixing systems, sampling stations, safety eyewashes/showers, HVAC, electrical, instrumentation, and controls.
This project will replace the Supervisory Control and Data Acquisition (SCADA) communications network. Newer antennas will provide a significant improvement in reliability as technical support, replacement parts, and manufacturer’s maintenance are available. The upgrade will include “mesh” technology, where radios communicate through multiple paths to provide the highest level of redundancy.