A city consultant recently discovered PFAS chemicals in the soil and groundwater of the Livermore Municipal Airport, spurring the regional water board to call for additional evaluation of the site. The PFAS Investigation Report published Oct. 13 by Geosyntec Consultants, Inc. was meant to determine whether PFAS — an abbreviation for perfluoroalkyl and polyfluoroalkyl substances — have been released at the airport and whether a discharge has contributed to PFAS plumes in the Livermore Valley Main Basin or contamination in municipal drinking water supply wells operated by the Zone 7 Water Agency.

Other groundwater news:

• The Durango Herald (Colo.): New Mexico officials, Mora residents say feds should respond to groundwater contamination
• Arizona Capitol Times (Phoenix): New groundwater irrigation suspended in the Ranegras Plain
• California Department of Water Resources: News release: Wrap-up of Nov 4 draft California’s groundwater: bulletin 118 – update 2025 public webinar
• Nature Scientific Reports: AI-based forecasting of groundwater corrosion and scaling indices in semi-arid regions using 25-year data analysis