Director, Environmental Practice | Licensed Professional Engineer | Environmental Engineering Expert Witness

Mr. Purcell has evaluated hundreds of contaminated properties across the U.S. and Canada, including manufactured gas plants, refineries, Superfund sites, dry cleaners, landfills, rail yards, pipeline release sites, and commercial/industrial spill sites. His evaluations span both soil and groundwater contamination involving petroleum hydrocarbons, chlorinated solvents, metals, PCBs, pesticides, and herbicides.

Yes — determining the cause, origin, and timing of hazardous releases is a core component of Mr. Purcell's practice. He applies environmental forensic methodologies to identify the source of contamination and, where applicable, to identify potentially responsible parties (PRPs).

Mr. Purcell is an experienced environmental cost modeler who has developed remediation cost estimates and allocation models for complex and mega-Superfund sites. He utilizes industry-standard tools including the RS Means Construction Costs database and groundwater plume modeling software.

Yes — Mr. Purcell has extensive experience evaluating Natural Resource Damages, including the assessment of impacts to soil, groundwater, and surface water bodies and the quantification of associated damages for regulatory and litigation purposes.

Mr. Purcell holds an active P.E. license in Texas (License #87025) and maintains an NCEES Council Record (Record #24583) that facilitates licensure recognition across multiple jurisdictions.

Yes — Mr. Purcell has directed emergency spill response efforts and provided regulatory coordination for chemical releases at facilities and during transport across highway, rail, maritime, and pipeline modes.