Since 1978, Caliagua is a leader in General Contracting for Southern California’s water, wastewater, and stormwater treatment industry. We build water treatment plants, pumping stations, sewage lifting stations, and more. We have expertise in PFAS water filtration project and are currently in completion stages on the Tustin PFAS Treatment Facility and Orange Wells, #20, #21 and #22. Our proven skills in engineering, analysis, budgeting, cost accounting and project management lead to consistently reliable construction. We deliver on-budget and on-time. Privately owned, we’ve earned our reputation for the highest quality projects. This has been rewarded by repeat projects with most of Southern California’s largest water districts.