Superfund Information Systems: Site Profile

Superfund Site:

PORTSMOUTH NAVAL SHIPYARD
KITTERY, ME

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 SITES 10 & 21 (OU1) Record of Decision
September 27, 2010
Disposal (offsite)
Excavation
Institutional Controls
Monitoring
02 DRMO AREA - SITES 6 & 29 (OU2) Record of Decision
September 29, 2011
Cover (soil)
Disposal (offsite)
Excavation
Institutional Controls
Monitoring
No Further Action
Revegetation
03 JILF SOURCE CONTROL (OU3) Record of Decision
August 29, 2001
Bottom Liner
Cap (engineered cap)
Consolidate (onsite)
Drainage/Erosion Control (other, NOS)
Excavation
Institutional Controls
Operations & Maintenance (O&M)
Revegetation
Vertical Engineered Barrier (other)
Wetlands Replacement
03 JILF SOURCE CONTROL (OU3) Explanation of Significant Differences
September 17, 2003
Consolidate (onsite)
Excavation
Wetlands Replacement
03 JILF SOURCE CONTROL (OU3) Explanation of Significant Differences
October 27, 2005
Data not available
04 OFF-SHORE (OU4) Record of Decision
May 21, 1999
Monitoring
Sampling
04 OFF-SHORE (OU4) Record of Decision
August 15, 2013
Dewatering
Disposal (offsite)
Dredging
No Further Action
05 SITE 32 TOPEKA PIER (OU5/7) Record of Decision
September 30, 2013
Disposal (offsite)
Excavation
Institutional Controls
Sampling
06 SITE 31 WEST TIMBER BASIN (OU6/8) Record of Decision
September 25, 2017
Institutional Controls
07 SITE 34 OIL GASIFICATION PLANT (OU7/9) Record of Decision
September 30, 2013
Institutional Controls
07 SITE 34 OIL GASIFICATION PLANT (OU7/9) Explanation of Significant Differences
September 20, 2017
ESD/Amd - ICs - Implement or Change
ESD/Amd - RAO(s) Change

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