PFAS Evaluations for Alaska DOT&PF

CLIENT Department of Transportation & Public Facilities

Location Various airports in Alaska (Fairbanks, Gustavus, King                              Salmon and Naknek)

The Alaska Department of Transportation and Public Facilities (DOT&PF) is evaluating per- and polyfluoroalkyl substances (PFAS) in groundwater and soil at current and former Part 139 certified airports. 

The Federal Aviation Administration (FAA) requires the use of aqueous film-forming foam (AFFF) for training and systems testing at these airports, in case there is an emergency.

PFAS are persistent, mobile, and toxic when ingested at low parts per trillion levels. They are an emerging contaminant with evolving regulatory levels. Shannon & Wilson is well versed in these changes as they are happening and assists our client in navigating frequent project changes.

Due to our technical expertise and experience with other Alaskan PFAS sites, Shannon & Wilson was awarded the Statewide PFAS contract with DOT&PF to evaluate DOT&PF-managed airports across Alaska for the presence of PFAS. Our scope of services spans all aspects of emergency response, public and private water-supply assessments, provision of alternative water supplies, design of water-treatment systems, source area assessment, plume investigation, remediation, design of municipal water-supply and distribution systems, and long-term monitoring. Shannon & Wilson’s team is known for excellent public relations with respect to environmental projects and assists our clients with communication materials preparation and public meetings.


Christopher Darrah
Vice President, Fairbanks Office Manager

Kristen Freiburger
Senior Associate

Ashley Jaramillo
Senior Chemist

Mark Lockwood
Senior Associate

Amber Masters
Environmental Scientist

Dan McMahon
Vice President

Russ Schwab
Vice President, Chief Technology Officer

Meg Strong
Vice President

Rachel Willis
Environmental Scientist

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