The U.S. Navy is preparing to sample drinking water wells near Naval Air Station (NAS) Whiting Field’s Outlying Landing Fields (OLFs) in Florida and Alabama beginning in June. The investigation includes OLFs Evergreen, Brewton, Silverhill, Summerdale, Barin and Wolf in Alabama.

The Navy will be sampling drinking water wells within a designated sampling area at each OLF for certain per- and polyfluoroalkyl substances, or PFAS. PFAS have been used nationwide since the 1950s in products that resist heat, stains, grease and water. They have been used in a variety of products and substances such as non-stick cookware, food packaging such as microwaveable popcorn bags, water-resistant textiles and sprays used to treat carpets and fabrics. PFAS are key components in aqueous film forming foam (AFFF).

The Navy would like to sample drinking water wells to determine if AFFF or other PFAS-containing materials used at a NAS Whiting Field OLF have migrated through groundwater into off-base drinking water wells at levels greater than U.S. Environmental Protection Agency’s health advisory levels for two specific PFAS, perfluorooctanoic acid (PFOA) and

perfluorooctane sulfonate (PFOS).

In May 2016, the EPA announced a lifetime health advisory level of 70 parts per trillion (ppt) for both PFOS and PFOA. Although these health advisory levels are not enforceable regulatory standards, the Navy is proactively seeking to identify drinking water wells that may contain levels of PFOA and/or PFOS greater than the EPA lifetime health advisory. To do this, the Navy needs to sample drinking water wells in the designated sampling area.

The Navy has mailed a letter to property owners in the designated sampling area, for each OLF, to provide further information and to request permission to sample their drinking water. Sampling will be available to property owners within the designated sampling area at no cost.

To schedule a drinking well sampling appointment, please call 844-NASWFLD (844-627-9353).