Westchester County Airport, as part of its effort to protect the environment, has undertaken an unprecedented voluntary hydrogeological study, groundwater investigation and groundwater monitoring program at the airport, to insure that the Kensico Reservoir and other water bodies near the airport are not adversely impacted by activities at the airport. 

Beginning in 1999, the airport developed and implemented an airport-wide Site Investigation Report and Groundwater Monitoring Program to determine the impact of Airport operations on groundwater. 

This study and ongoing monitoring program, which was developed voluntarily and in cooperation with pertinent government agencies, including the New York State Attorney General and Department of Environmental Conservation, the New York City Department of Environmental Protection, which operates the Kensico Reservoir, and participation of environmental organizations and the public, was completed in 2001.

The study found that “…there is no …groundwater pollution threat to Rye Lake [Kensico Reservoir] or the surrounding environment emanating from the Airport.”

In August 2001, the airport implemented the recommended groundwater monitoring program. Twice a year, until 2011 the airport’s qualified consultant collected samples from a monitor well network that ultimately consisted of 57 monitoring wells located across the airport. The groundwater monitoring program was reinstituted in 2018. There are over 50 groundwater wells currently being sampled.

The collected groundwater samples are analyzed at a certified laboratory.

Dec. 2019 Groundwater Monitoring Program Semiannual Report