Members of the BEI team attended a seminar recently on the new “Commingled Plume Technical Guidance Document” that was issued by the New Jersey Department of Environmental Protection (NJDEP) in April of this year. A commingled plume occurs when two or more plumes of contaminated ground water combine, a relatively common condition in urban or commercial locations. The new document provides LSRPs and other interested parties with technical methods to determine the presence of a commingled plume and assess its impact on both current and future decisions regarding remediation. Click here to view or download the document.