Torrance Refinery Water Recycling Plant Programmable Logic Controller Replacements

West Basin Municipal Water District is seeking a qualified System Integrator to replace three obsolete programmable logic controllers (PLCs) at the Torrance Refinery Water Recycling Plant. The contractor will design, program, install, and commission new Modicon M580 PLCs, integrate them with the existing Emerson Ovation DCS, perform factory and site acceptance testing, provide updated drawings and documentation, and train plant personnel. The effort includes network/fiber infrastructure, HMI screen development, and coordination of plant shutdowns to minimize operational impact. • Scope: Design, procurement, installation, programming, testing, and documentation for three process‑level PLC replacements. • Required deliverables: Updated control logic, HMI screens, network diagrams, panel layouts, training materials, and as‑built documentation. • Mandatory pre‑proposal conference and site walk on Oct 7, 2026; questions due Oct 15, 2026; proposal due Nov 5, 2026. • Contract will be awarded to the most responsive and technically qualified bidder; award date not specified. • Small, local, and veteran‑owned business incentives are available.