An Explanation of Significant Differences (or ESD) is a CERCLA (or Superfund) decision document prepared when there has been a significant change in cost, performance, or cost of a remedy selected in a Record of Decision (ROD). The significant change to the remedy may be as a result of new information. In 2002, EPA issued an Explanation of Significant Differences […]

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A Consent Decree (CD) is a legal document, approved by a judge, that formalizes an agreement reached between EPA and Potentially Responsible Parties (PRPs) through which PRPs will conduct all or part of a cleanup action at a Superfund site; cease or correct actions or processes that are polluting the environment; or otherwise comply with EPA initiated regulatory enforcement actions […]

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