This project included the construction of lead-lag dual media pressure vessel systems with PFAS selective ion exchange resins, pre-treatment cartridge filters, and piping and appurtenances for PFAS treatment facilities at Pico Water District’s Wells 5A, 8, and 11. AKM prepared an Engineering Report to be reviewed by the CA Water Resources Control Board Division of Drinking Water and assisted the District with coordinating the required pilot study with the resin manufacturer at Well 11.

The improvements included the installation of new reinforced concrete foundation slabs, 2 to 4 ion exchange vessels, and 2 to 3 cartridge filters per site, along with new instrumentation, appurtenances, and the relocation of disinfection chemical injection locations. AKM also developed pre-purchase specifications for the dual media vessels, ion exchange resin, and cartridge filters to ensure compliance with project requirements. The project was awarded to AqueoUS Vets as a piggyback contract under the San Gabriel Valley Water Company and City of Pico Rivera projects.