The most heavily contaminated soils were excavated and treated off-site. After evaluating several final, long term remedial solutions for residual petroleum in groundwater, phytoremediation was selected as the most effective and cost-efficient.

In 2002, approximately 200 hybrid poplar trees were planted on the site directly atop the residual petroleum groundwater contamination plume. The trees have flourished, and are capturing and treating an estimated 600,000 gallons of contaminated groundwater annually, which is approximately equal to the groundwater flux through the site.

The phytoremediation remedy cost 95% less than a traditional well-and-pump style pump and treat system. The phytoremediation system is solar powered, reducing energy input necessary for other forms of remediation.