Region 10 Cleanup: Bunker Hill Mining & Metallurgical Serving the people of Alaska, Idaho, Oregon, Washington and 270 Native Tribes Recent Additions | Contact Us | Print Version Search: EPA Home > Region 10 > Cleanup Sites > Bunker Hill > Box Documents

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Decision Documents RODs, ESDs and Proposed Plans - Information gathered is used to develop a Proposed Plan, which describes the various cleanup options under consideration and identifies the option EPA prefers. EPA invites community members to a public meeting to express their views and to discuss the plan with EPA officials. The Record of Decision (ROD) is a public document that explains which cleanup alternatives will be used to clean up a Superfund site. The ROD for sites listed on the NPL is created from information generated during the RI/FS.  Read more about Records of Decisions (RODs).   EPA can formally amend the ROD or can issue what is called an Explanation of Significant Differences (ESD). Additional information about how RODs may be modified. Five Year Reviews - Section 121 of CERCLA, as amended by SARA, requires that remedial actions which result in any hazardous substances, pollutants, or contaminants remaining at the site be subject to a five-year review. The NCP further provides that remedial actions which result in any hazardous substances, pollutants, or contaminants remaining at the site above levels that allow for unlimited use and unrestricted exposure be reviewed every five years to ensure protection of human health and the environment. Mine Water RI/FS (PDF) (22 p. 120K) - After a site is listed on the NPL, a remedial investigation/feasibility study (RI/FS) is performed at the site. The remedial investigation serves as the mechanism for collecting data to: characterize site conditions; determine the nature of the waste; assess risk to human health and the environment; and conduct treatability testing to evaluate the potential performance and cost of the treatment technologies that are being considered. Read more about RI/FS. The Reasibility Study (FS) is the mechanism for the development, screening, and detailed evaluation of alternative remedial actions. [ Main Cleanup | Brownfields ] [ Superfund | FOIA | Records Center ] Point of contact: Debra Sherbina E-Mail: sherbina.debra@epa.gov Phone Number: (206) 553-0247 Last Updated: 10/27/2009