Superfund Information Systems: Site Profile

Superfund Site:

HOOKER (HYDE PARK)
NIAGARA FALLS, NY

Cleanup Progress

On this page:

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

Site Milestones

Milestone Date(s)
Initial Assessment Completed 12/01/1979
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Remedial Investigation Started 01/19/1981
Final Remedy Selected 11/26/1985
Final Remedial Action Started 08/15/1987
Construction Completed 07/18/2003
Deleted from National Priorities List 10/23/2013
Most Recent Five-Year Review 08/23/2016
Site Ready for Reuse and Redevelopment 05/08/2012

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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
Consent Decree (EPA Performed) OU 00 - SITEWIDE 04/30/1982 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/29/1994 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/28/2001 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/27/2006 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/27/2011 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 08/23/2016 00
Five-Year Review OU 00 - SITEWIDE Estimated Aug - Oct 2021 00
Combined Remedial Investigation/Feasibility Study (PRP Performed, EPA Oversight) OU 01 - M 01/19/1981 11/26/1985 01
Record of Decision (EPA Performed) OU 01 - M 11/26/1985 01
Explanation of Significant Differences (EPA Performed) OU 01 - M 05/07/2012 01
Remedial Design (PRP Performed, EPA Oversight) OU 01 - M 08/15/1986 08/15/1986 01
Remedial Action (PRP Performed, EPA Oversight) OU 01 - M 08/15/1987 09/29/2004 01
Operation and Maintenance (PRP Performed, EPA Oversight) OU 01 - M 09/29/2004 01

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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