Superfund Information Systems: Site Profile

Superfund Site:

COLORADO SMELTER
PUEBLO, CO

Cleanup Progress

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

Site-Wide Milestones

Milestone Date(s)
Preliminary Assessment/Site Investigation Completed 10/11/2011
Proposed to the National Priorities List 05/12/2014
Finalized on the National Priorities List 12/11/2014
Remedy Selected 09/25/2017
Remedial Action Started 09/29/2017
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review Not Yet Achieved
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 01 - OU 01 - COMMUNITY PROPERTIES 06/20/2016 08/08/2017 01
Combined Remedial Investigation/Feasibility Study OU 01 - OU 01 - COMMUNITY PROPERTIES 07/29/2014 01
Record of Decision OU 01 - OU 01 - COMMUNITY PROPERTIES 09/25/2017 01
Remedial Design OU 01 - OU 01 - COMMUNITY PROPERTIES 08/09/2017 01
Remedial Action OU 01 - OU 01 - COMMUNITY PROPERTIES 09/29/2017 01
Removal OU 02 - OU 02 - FORMER SMELTER AREA 01/07/2016 01/07/2016 02
Removal OU 02 - OU 02 - FORMER SMELTER AREA 12/12/2017 02
Combined Remedial Investigation/Feasibility Study OU 02 - OU 02 - FORMER SMELTER AREA 07/29/2014 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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