DoD/EPA Derived Ecological Screening Values

DoD/EPA Derived Ecological Screening Values Home

Provided here is the Final Report that describes the ecological screening values (ESVs) that have been developed to support screening-level ecological risk assessments at U.S. Department of Defense (DOD) sites where per- and polyfluorinated alkyl substances (PFAS) have been detected in soils and surface waters. The ESVs, developed for a study set of eight PFAS compounds, represent PFAS concentrations in surface soil and surface water at or below which chronically exposed biota are not expected to be adversely affected and ecological impacts are unlikely.

These ESVs support the screening level steps of the U.S. Environmental Protection Agency's Ecological Risk Assessment Guidance for Superfund. They may be applied to sites undergoing investigation for the release or disposal of PFAS, to identify whether PFAS concentrations may pose unacceptable ecological risks.