The Western Municipal Water District is seeking a qualified construction contractor to design‑build and install a new PFAS (per‑ and poly‑fluoroalkyl substances) treatment system at the Arlington Desalter Plant. The work includes demolition of existing granular‑activated‑carbon vessels, installation of two new ion‑exchange pressure vessels, pretreatment filtration, associated civil works (foundations, grading, paving, drainage), mechanical installations (pumps, valves, bag filters), electrical power distribution, instrumentation, and SCADA integration. The contractor must also provide commissioning, training, O&M manuals, and a 12‑month warranty, while complying with state and federal environmental, safety, and Buy‑America requirements.
• Demolition of existing GAC equipment and associated site earthwork.
• Installation of ion‑exchange vessels, pretreatment filters, new pipelines (above‑ and below‑grade), and supporting structural steel.
• Full electrical, instrumentation, and SCADA upgrades, plus testing, commissioning, and operator training.