Sites contaminated by chlorinated solvents present a daunting environmental challenge. Chlorinated solvents are prevalent and persistent groundwater contaminants, found at tens of thousands of sites worldwide. They also are among the most difficult groundwater contaminants to remediate, especially at sites with dense, nonaqueous-phase liquid (DNAPL) still present in the source zone.
The Integrated DNAPL Site Strategy (IDSS-1, 2011) guidance helps site managers develop an effective and flexible approach for cleaning up complex chlorinated-solvent sites. It assists site managers in developing a conceptual site model, setting remedial objectives and performance measures, selecting treatment technologies, and developing monitoring strategies. The guidance also emphasizes regularly reevaluating the strategy and modifying the approach when objectives are not met or another method may produce better results. This adaptive approach helps managers make meaningful progress toward cleanup goals over time.
The Integrated DNAPL Site Strategy (IDSS-2, 2020) guidance updated and expanded this document.
Topic(s): Chlorinated Solvents, DNAPL, Groundwater, Groundwater Monitoring, Remediation Technologies, Site Characterization, Water Quality
