Frequent Questions

How do I address plumes of contaminated groundwater that originate from off-site sources in making a Migration of Contaminated Groundwater under Control EI determination at a RCRA facility?

As stated in the February 5, 1999 guidance (PDF File, 52 KB) from the Office of Resource Conservation and Recovery (ORCR) on how to determine if a facility has met the RCRA Environmental Indicators (EI), the Migration of Contaminated Groundwater under Control EI determination applies site-wide for all contaminated groundwater "subject to corrective action at or from the identified facility." Therefore, plumes that originate from off-site sources would not be subject to a RCRA groundwater EI determination for the RCRA facility in question. The overseeing agency, however, should ensure that such plumes are addressed as necessary through other regulatory actions.

For more information, see http://www.epa.gov/epawaste/hazard/correctiveaction/eis/index.htm.

Have more questions? Submit a request