Expansion of the water treatment plant in San Diego began in 2008. The project is expected to take 20 years and will be completed in five phases. The new facility will have a daily filtration capacity of 800,000 m³, approximately double the current size. The upgraded facility is expected to meet the needs of San Diego’s growing population through at least 2030 and the facility has an expected lifetime of 75 years.
The Alvarado plant is one of three that serve San Diego residents. The first phase was to enhance chemical treatment facilities and pumping systems at a cost of $65 million. Phase 2 includes installation of the plant’s flocculation and sedimentation basins and an upgrade of the electrical and control systems of the plant’s eight original filters. Phase 3 increases plant capacity from 150 MGD to 200 MGD (million gallons a day).
The remaining phases will add major ozone treatment facilities, including ozone generators. The fifth and final phase will involve shoreline landscaping, storm water management facilities, and backup pumps and generators.
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