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Alvarado Water Treatment Plant - San Diego, CA

- General Contractor
- New construction and upgrades to existing structures
- Design-assist resulting in cost and schedule savings



The Alvarado WTP has served as the “heart” of San Diego City’s drinking water system for more than fifty years. Plant capacity which was 120 million gallons per day (mgd) will be increased to 200 mgd with the completion of the Upgrade and Expansion Project. This project required partial demolition of both flocculation basins and associated systems and structures, along with construction of new influent, effluent and overflow channels, flocculation basins and flocculation systems. The contract also included modification of the settled water conduit to accommodate conveyance of ozonated settled water. In addition, the Stanek-Penick-Triton team performed a rehabilitation of Sedimentation Basins 1 & 2; removal and replacement of the chain and flight system, replacement of weir plates, and an upgrade of the sludge collection and conveyance system.