Superfund Information Systems: Site Profile

Superfund Site:

KEARSARGE METALLURGICAL CORP.
CONWAY, NH

Cleanup Progress

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Cleaning up Superfund sites is a complex, multi-phase process. Learn more:

Site Milestones

Milestone Date(s)
Initial Assessment Completed 01/01/1983
Proposed to the National Priorities List 09/08/1983
Finalized on the National Priorities List 09/21/1984
Remedial Investigation Started 01/21/1985
Final Remedy Selected 09/28/1990
Remedial Action Started 07/09/1992
Final Remedial Action Started 04/14/2015
Construction Completed 09/24/1993
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 09/05/2018
Site Ready for Reuse and Redevelopment 09/14/2011

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Cleanup Schedule by Operable Unit

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

Milestone OU Start Date Completion Date OU ID
Administrative Order of Consent (State Performed) OU 00 - SITEWIDE 07/26/1985 00
Consent Decree (EPA Performed) OU 00 - SITEWIDE 08/19/2000 00
Removal (EPA Performed) OU 00 - SITEWIDE 09/26/1990 04/17/1991 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 07/08/1998 00
Five-Year Review (State Performed) OU 00 - SITEWIDE 09/30/2003 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/26/2008 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/05/2013 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/05/2018 00
Remedial Investigation (PRP Performed, EPA Oversight) OU 01 - WASTE PILE 01/21/1985 07/22/1988* 01
Feasibility Study (State Performed) OU 01 - WASTE PILE 07/22/1988* 09/28/1990 01
Proposed Plan (EPA Performed) OU 01 - WASTE PILE 05/22/2012 05/22/2012 01
Record of Decision (EPA Performed) OU 01 - WASTE PILE 09/28/1990 01
Record of Decision Amendment (State Performed) OU 01 - WASTE PILE 09/18/2012 01
Explanation of Significant Differences (EPA Performed) OU 01 - WASTE PILE 08/31/1992 01
Explanation of Significant Differences (EPA Performed) OU 01 - WASTE PILE 09/29/2003 01
Explanation of Significant Differences (EPA Performed) OU 01 - WASTE PILE 04/19/2010 01
Explanation of Significant Differences (EPA Performed) OU 01 - WASTE PILE 03/29/2016 01
Remedial Action (EPA Performed) OU 01 - WASTE PILE 07/09/1992 12/30/1992 01
Remedial Design (EPA Performed) OU 02 - GROUNDWATER, MISC. 09/27/1991 02/18/1993 02
Remedial Action (EPA Performed) OU 02 - GROUNDWATER, MISC. 12/22/1992 04/01/1993* 02
Remedial Action (EPA Performed) OU 02 - GROUNDWATER, MISC. 02/18/1993* 05/09/1994 02
Remedial Action (State Performed) OU 02 - GROUNDWATER, MISC. 04/14/2015 02/26/2016 02
Long-Term Response Action (State Performed) OU 02 - GROUNDWATER, MISC. 05/09/1994 05/31/2004 02
Operation and Maintenance (State Performed) OU 02 - GROUNDWATER, MISC. 05/31/2004 02

*NOTE: This date may not reflect the actual start or actual completion of the milestone. Either the lead for this activity changed, the project was phased, or the project did not fit the normal definitions of activities tracked in this table.

NOTE: Dates and estimated dates will not display for all milestones. Estimated dates only display for milestones planned within the next three fiscal years. Estimated dates and start dates will not display for the following enforcement milestones: Administrative Order of Consent, Consent Decree and Unilateral Administrative Order. Start dates will not display for the following document milestones: Five-Year Review, Record of Decision, Record of Decision Amendment, Explanation of Significant Differences and Partial NPL Deletion.

DISCLAIMER: The data on this page are derived from the Superfund Enterprise Management System and are solely for informational purposes. The data cannot be relied upon to create any substantive or procedural rights or requirements enforceable by any party in litigation with any member of the public, states, tribes, the United States or any federal agency. EPA reserves the right to change these data at any time without public notice.

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