Superfund Information Systems: Site Profile

Superfund Site:

TAR CREEK (OTTAWA COUNTY)
OTTAWA COUNTY, OK

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 08/01/1982
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Remedial Investigation Started 06/16/1982
Remedy Selected 06/06/1984
Remedial Action Started 06/29/1984
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 09/29/2015
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
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 04/30/1994 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 04/11/2000 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 09/28/2005 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 09/29/2010 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 09/29/2015 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE - OU00 Estimated Sep - Nov 2020 00
Consent Decree (EPA Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 06/10/1991 01
Removal (EPA Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 08/17/1985 10/12/1985 01
Remedial Investigation (State Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 06/16/1982 03/31/1983* 01
Feasibility Study (EPA Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 03/31/1983 06/06/1984 01
Record of Decision (EPA Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 06/06/1984 01
Remedial Design (State Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 06/29/1984 08/31/1984 01
Remedial Action (State Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 06/29/1984 12/17/1986 01
Remedial Action (State Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 04/25/1986 12/31/1986 01
Operation and Maintenance (State Performed) OU 01 - SITEWIDE - (OU1 - SURFACE/GROUND WATER) 08/25/2014 01
Removal (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 09/12/1995 09/28/2006 02
Remedial Investigation (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 03/20/1995 08/27/1997 02
Combined Remedial Investigation/Feasibility Study (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 08/25/1994 02/07/1997 02
Record of Decision (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 08/27/1997 02
Explanation of Significant Differences (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 08/30/2007 02
Remedial Design (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 03/14/1996 09/04/2003 02
Remedial Design (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 11/01/2003* 12/31/2004 02
Remedial Design (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 09/30/2005* 09/27/2011 02
Remedial Design (State Performed) OU 02 - RESIDENTAIL SOIL (OU2) 03/10/2015 02
Remedial Action (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 09/22/1997* 05/02/2002 02
Remedial Action (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 06/27/2005 09/25/2013 02
Remedial Action (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 06/27/2005* 09/25/2013 02
Remedial Action (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 06/24/2011 09/21/2012 02
Remedial Action (EPA Performed) OU 02 - RESIDENTAIL SOIL (OU2) 09/25/2013 09/29/2014 02
Remedial Action (State Performed) OU 02 - RESIDENTAIL SOIL (OU2) 06/28/2016 02
Removal (EPA Performed) OU 03 - TAR CREEK E-P LAB CHEM.(OU-03) 03/28/2000 05/23/2000 03
Administrative Order of Consent (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 12/09/2003 04
Consent Decree (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 12/15/2014 04
Consent Decree (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/26/2017 04
Consent Decree (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/13/2019 04
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 12/09/2003 02/20/2008 04
Combined Remedial Investigation/Feasibility Study (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/25/2006 01/30/2009 04
Proposed Plan (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/30/2007 07/30/2007 04
Proposed Plan (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/30/2007 10/01/2007 04
Record of Decision (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 02/20/2008 04
Remedial Design (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/05/2008 09/10/2012 04
Remedial Design (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 02/23/2009 08/31/2011 04
Remedial Design (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/26/2018 Estimated Sep - Nov 2019 04
Remedial Design OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) Estimated Oct - Dec 2020 04
Remedial Action (State Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/05/2008 11/22/2011 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/05/2008 04
Remedial Action (State Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 12/01/2009 09/20/2012 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 03/04/2010 09/13/2010 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 03/29/2010 10/26/2010 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/01/2010 06/07/2011 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/06/2010 07/27/2011 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 10/01/2010 08/15/2016 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 01/02/2011 12/25/2011 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 03/07/2011 09/22/2015 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 04/21/2011 08/08/2011 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/06/2011 09/22/2015 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 08/01/2011 09/27/2017 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 08/01/2011 11/30/2011 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/05/2011 09/22/2015 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 02/06/2012 09/22/2015 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 02/13/2012 04/05/2013 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/01/2013 09/22/2015 04
Remedial Action (State Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/01/2014 11/23/2016 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 08/29/2014 Estimated Apr - Jun 2021 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 03/16/2015 09/22/2016 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 07/23/2015 09/14/2016 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 08/21/2015 09/23/2016 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 08/28/2015 08/28/2019 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/02/2015 08/28/2019 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 03/23/2016 09/12/2016 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 06/29/2016 Estimated Jul - Sep 2020 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 11/23/2016 04
Remedial Action (State Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/25/2017 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/28/2018 08/28/2019 04
Remedial Action (EPA Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/28/2018 Estimated Jan - Mar 2021 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/28/2018 Estimated Jul - Sep 2020 04
Remedial Action (Tribe Performed) OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) 09/28/2018 04
Remedial Action OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) Estimated Mar - May 2019 04
Remedial Action OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) Estimated Jul - Sep 2020 04
Remedial Action OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) Estimated Apr - Jun 2021 04
Remedial Action OU 04 - MINING WASTES (OU4 - NONRESIDENTIAL) Estimated Jul - Sep 2021 04
Combined Remedial Investigation/Feasibility Study (EPA Performed) OU 05 - TAR CREEK (OU5 - SEDIMENT) 07/16/2015 05
Proposed Plan OU 05 - TAR CREEK (OU5 - SEDIMENT) Estimated Jan - Mar 2021 05

*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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