Site Location: Wilmington, North Carolina

Contaminants: Nitrate and Ammonium in Soil and Ground Water that is 10 to 15 feet below ground surface.

Project Objective: Prevention of off-site migration of nitrate and ammonium plume.

Implementation Program: A TreeMediation site assessment was performed by collecting and evaluating soil and ground water data and reviewing previously developed site environmental data. The TreeMediation program was implemented to create a zone of interception that would limit the off-site migration of the nitrogen contamination in the ground water.

Results to Date: Trees have consistently grown at a rate of between 6 and 8 feet per year. Nitrogen levels in the well downgradient of the trees have steadily fallen following the implementation of the TreeMediation program. Trees not rooted to the aquifer have grown at half the rate of the majority of aquifer-rooted trees on the site.