PetroFix Achieves UST Site Closure at NAAS Edenton

Case study highlights:

• NCDEQ issued a No Further Action Status for the site
• Application of PetroFix effectively mitigated benzene and other petroleum hydrocarbons to below regulatory thresholds
• Project exemplifies the successful adaptation of PetroFix in a complex post-military context

Historical firefighting activities at the former Naval Air Station (NAS) Alameda resulted in high PFAS (per- and polyfluoroalkyl substances) concentrations in the groundwater, threatening the Oakland Inner Harbor. In response, the project team, comprising Bayside Engineering, Construction, Inc. (Bayside), APTIM Federal Services (APTIM), and REGENESIS®, collaboratively implemented a 720-foot in situ permeable reactive barrier (PRB) using PlumeStop® colloidal activated carbon (CAC) technology. This innovative approach created an adsorptive barrier within the polluted aquifer, effectively capturing PFAS and preventing their migration. After one year, the target PFAS compounds were reduced by more than 99% in the treatment zone with significant decreases in the downgradient wells. The strategic application of PetroFix, along with ongoing monitoring and adjustments, highlights the effectiveness of innovative remediation technologies in overcoming significant environmental challenges