The upgrades to the Goleta Sanitary District Wastewater Treatment Plant increased the treatment level and quality of wastewater exiting the facility. The improvements to the plant’s primary and secondary water treatment processes ensure safe recreational uses of Goleta’s coastal water and increase the reliability of recycled water supplies for reuse in the community.
PCL replaced aged, outdated equipment with newer equipment and constructed a new secondary treatment train, including a solids-handling building and a waste-activated sludge-thickening tank. The team also completed upgrades to several of the plant’s existing facilities, including the headworks and odor-reduction tower.
When PCL began construction, the team discovered numerous unforeseen conflicts between existing utilities, new underground pipes, and new concrete structures. One such structure, a bio-filter, needed to be relocated from the position originally outlined in the design to avoid interference with one of the plant’s main power feeds. As a solution provider, PCL modeled each of the conflicts and advised the client and engineer on where to relocate the bio-filter. This relocation saved the owner additional costs they would have otherwise incurred had PCL not noticed the filter’s interference with the power feed.