Innovative PFAS Barrier Installed at NAS Alameda with Bayside Support
Naval Air Station Alameda
Alameda, CA
Naval Facilities Engineering Systems Command
Bayside Supports Navy's PFAS Mitigation Efforts at Former Naval Air Station Alameda
Published in The Military Engineer, July–August 2025 Issue, pages 57-58
Read the full article
Bayside Environmental Construction (Bayside) was proud to serve as a key team member in the U.S. Navy’s innovative pilot project to address PFAS contamination at the former Naval Air Station Alameda (NAS Alameda). The effort—highlighted in the July–August 2025 issue of The Military Engineer in an article titled “Mitigating PFAS at Naval Air Station Alameda”—focused on the design, installation, and testing of a 720-ft in situ permeable adsorptive barrier using colloidal-activated carbon (CAC).
Bayside played a hands-on role throughout the project—from start to finish. The team began by analyzing validated data, then conducted a column study using actual site soil and groundwater. They installed passive flux meters to measure PFAS movement, added groundwater wells and pressure transducers to monitor tidal effects, and ran water injection tests to assess flow rates and pressure. After completing the planning documents and securing regulatory approval, Bayside constructed a 720-foot colloidal-activated carbon (CAC) barrier using dual injection rigs. Impressively, all of this was completed within just 11 months of contract award.
The CAC barrier represents a sustainable and cost-effective method to prevent PFAS from entering the Oakland Inner Harbor, protecting nearby ecosystems while advancing remediation technology for future applications.
“The design of the barrier was based on the results of laboratory column studies… and validated by the remedial investigation results.”