Superfund Information Systems: Site Profile

Superfund Site:

NAVAL INDUSTRIAL RESERVE ORDNANCE PLANT
FRIDLEY, MN

Operable Units

Below, EPA has provided a list of the remedial actions selected pertaining to each operable unit.

EPA issues Records of Decision (RODs) to explain which cleanup methods will be used at Superfund National Priorities List sites. EPA has two primary documents that it may use to identify changes to the remedies selected in RODs. EPA uses a ROD Amendment when it needs to make a fundamental change to the remedy. EPA publishes an Explanation of Significant Differences (ESD) for significant changes.

During cleanup, complex sites may be divided into several distinct areas to make the response more efficient. These areas, called operable units (OUs), may address geographic areas, specific problems, or medium (e.g., groundwater, soil) where a specific action is required.

EPA is working to improve data quality. The information presented on this page is undergoing review for accuracy and completeness, and may be subject to change.

OU ID Name Decision Document Cleanup Technologies Selected
in the Decision Document
00 SITEWIDE No decision document
01 GROUNDWATER Record of Decision
September 28, 1990
Air Stripping (P&T, exsitu)
Carbon Adsorption (liquid phase, P&T, exsitu)
Discharge (POTW)
Discharge (surface water/NPDES discharge)
Extraction (recovery/vertical well)
01 GROUNDWATER Explanation of Significant Differences
September 26, 2014
ESD/Amd - ICs - Implement or Change
02 SOURCES OUTSIDE BLDG Record of Decision
September 17, 2003
Institutional Controls
03 SOURCES BENEATH THE BUILDING Record of Decision
September 17, 2003
Institutional Controls
03 SOURCES BENEATH THE BUILDING Explanation of Significant Differences
July 19, 2017
Data not available
04 SEMS No decision document

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