Superfund Information Systems: Site Profile

Superfund Site:

CHEVRON QUESTA MINE
QUESTA, NM

Cleanup Progress

On this page:

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

Site-Wide Milestones

Milestone Date(s)
Preliminary Assessment/Site Investigation Completed 06/01/1981
Proposed to the National Priorities List 03/10/2011
Finalized on the National Priorities List 09/16/2011
Remedy Selected 12/20/2010
Remedial Action Started 07/09/2012
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 06/28/2017
Site Ready for Reuse and Redevelopment Not Yet Achieved

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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
Removal OU 00 - SITEWIDE 07/09/2012 03/30/2016 00
Five-Year Review OU 00 - SITEWIDE 06/28/2017 00
Combined Remedial Investigation/Feasibility Study OU 01 - SOURCE 09/27/2001 12/20/2010 01
Record of Decision OU 01 - SOURCE 12/20/2010 01
Remedial Design OU 01 - SOURCE 01/17/2013 01
Remedial Design OU 01 - SOURCE 02/09/2016 01
Remedial Design OU 01 - SOURCE 05/09/2017 01
Remedial Design OU 01 - SOURCE 09/25/2012 06/01/2015 01
Remedial Design OU 01 - SOURCE 09/25/2012 09/08/2016 01
Remedial Design OU 01 - SOURCE 09/25/2012 09/29/2016 01
Remedial Design OU 01 - SOURCE 09/25/2012 01
Remedial Design OU 01 - SOURCE 09/30/2014 01/27/2016 01
Remedial Design OU 01 - SOURCE 09/30/2014 05/25/2018 01
Remedial Design OU 01 - SOURCE 09/30/2014 08/19/2015 01
Remedial Design OU 01 - SOURCE 11/06/2014 05/25/2018 01
Remedial Design OU 01 - SOURCE 11/06/2014 01
Remedial Action OU 01 - SOURCE 05/03/2017 12/06/2017 01
Remedial Action OU 01 - SOURCE 06/30/2017 01
Remedial Action OU 01 - SOURCE 07/16/2017 01
Remedial Action OU 02 - REMOVAL 01 01/05/2015 03/30/2016 02
Remedial Action OU 02 - REMOVAL 01 07/09/2012 04/19/2013 02
Remedial Action OU 02 - REMOVAL 01 09/29/2014 02

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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