The Groundwater Environmental Indicator (EI) is strictly a resource protection measure and not a direct measure of human risk, and may include the assessment of the impacts of groundwater discharges to surface waters and surface water ecosystems. For more information see http://www.epa.gov/wastes/hazard/correctiveaction/eis/faqs.htm.
How does the Groundwater Environmental Indicator (EI) differ from the Human Exposures EI?
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