[Federal Register Volume 71, Number 232 (Monday, December 4, 2006)]
[Rules and Regulations]
[Pages 70318-70319]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-20293]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 300

[EPA-HQ-SFUND-1990-0011; FRL-8249-8]


National Oil and Hazardous Substances Pollution Contingency Plan; 
National Priorities List

AGENCY: Environmental Protection Agency.

ACTION: Notice of partial deletion of the Ellsworth Air Force Base 
National Priorities List Site from the National Priorities List.

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SUMMARY: The Environmental Protection Agency, Region 8 (EPA) announces 
the deletion of portions of the Ellsworth Air Force Base (AFB) Site 
located in Meade and Pennington Counties, South Dakota, from the 
National Priorities List (NPL). All areas originally proposed for 
deletion under the Notice of Intent to Partially Delete published in 
the Federal Register on June 28, 2006 (71 FR 36736) are being deleted. 
The NPL constitutes Appendix B to the National Oil and Hazardous 
Substances Pollution Contingency Plan, 40 CFR Part 300, which EPA 
promulgated pursuant to Section 105 of the Comprehensive Environmental 
Response, Compensation, and Liability Act (CERCLA).
    EPA has determined, with the concurrence of the State of South 
Dakota through the Department of Environment and Natural Resources that 
the parcels pose no significant threat to public health, welfare or the 
environment and, therefore, no further response action pursuant to 
CERCLA is appropriate. This partial deletion pertains to surface soil, 
unsaturated subsurface soil, surface water, and sediments at Operable 
Units 2, 3, 4, 5, 6, 7, 8, 9, 10 and 12, and excludes the ground water 
medium at these parcels. The ground water medium at the Ellsworth AFB 
Site (OU-11, Basewide Ground Water), and the soil medium (surface and 
unsaturated subsurface soils) at OU-1, Fire Protection Training Area, 
will remain on the NPL and response activities will continue for those 
OUs. Two additional areas not associated with an operable unit, the 
Gateway Lake Ash Study Area and the Pride Hangar Study Area, are 
currently under investigation and are also not part of this partial 
deletion.

DATES: Effective Date: This rule is effective on December 4, 2006.

FOR FURTHER INFORMATION CONTACT: Mr. Jeff Mashburn, P.E., Remedial 
Project Manager (8EPR-F), U.S. EPA, Region 8, 999 18th Street, Suite 
300, Denver, CO 80202-2466, Phone: (303) 312-6665.

SUPPLEMENTARY INFORMATION: Ellsworth AFB is a U.S. Air Force Air Combat 
Command installation located 12 miles east of Rapid City, South Dakota, 
and adjacent to the small community of Box Elder. The main Air Force 
Base covers approximately 4,858 acres within Meade and Pennington 
counties and includes runways, airfield operations, industrial areas, 
housing, and recreational facilities.
    On June 28, 2006 EPA published a Notice of Intent of Partial 
Deletion in the Federal Register (71 FR 36736) and local newspapers 
which proposed to delete the surface soil, unsaturated subsurface soil, 
surface water and sediment media at OU-2, OU-3, OU-4, OU-5, OU-6, OU-7, 
OU-8, OU-9, OU-10 and OU-12 (approximately 542 acres) and the surface 
soil, unsaturated subsurface soil, surface water and sediment media of 
an additional 4,300 acres which are not associated with an operable 
unit and are not identified as posing a risk to human health or the 
environment. EPA received one comment from the State of South Dakota in 
support of the partial deletion. EPA agrees that the completion of the 
remedy requirements and ongoing monitoring programs adequately 
demonstrate that these parcels do not present a threat to the 
environment or human health and the deletion from the NPL is 
appropriate.
    EPA identifies sites that appear to present a significant risk to 
public health, welfare and the environment and maintains the NPL as the 
list of those sites. Deletion from the NPL does not preclude further 
remedial action. If a significant release occurs at a facility deleted 
from the NPL, that facility is restored to the NPL without application 
of the Hazard Ranking System. Deletion of the site from the NPL does 
not affect responsible party liability for further remedial actions, in 
the unlikely event that future conditions warrant such actions.

List of Subjects in 40 CFR Part 300

    Environmental protection, Air pollution control, Chemicals, 
Hazardous substances, Hazardous waste, Intergovernmental relations, 
Penalties, Reporting and recordkeeping requirements, Superfund, Water 
pollution control, Water supply.

    Dated: November 22, 2006.
Kerrigan Clough,
Acting Regional Administrator, Region 8.

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For reasons set out in the preamble, 40 CFR part 300 is amended as 
follows:

[[Page 70319]]

PART 300--[AMENDED]

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1. The authority citation for part 300 continues to read as follows:

    Authority: 33 U.S.C. 1321(c)(2); 42 U.S.C. 9601-9657; E.O. 
12777, 56 FR 54757, 3 CFR 1991 Comp., p. 351; E.O. 12580, 52 FR 
2923, 3 CFR 1987 Comp., p. 193.

Appendix B--[Amended]

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2. Table 2 of Appendix B to part 300 is amended by revising the entry 
under South Dakota for ``Ellsworth Air Force Base'' to read as follows:

Appendix B to Part 300--National Priorities List

                                      Table 2.--Federal Facilities Section
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           State                       Site name                   City/County                 Notes (a)
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                                                  * * * * * * *
SD........................  Ellsworth Air Force Base......  Rapid City...............  P
 
                                                  * * * * * * *
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* * * * *
    P = Sites with partial deletion(s).

[FR Doc. E6-20293 Filed 12-1-06; 8:45 am]
BILLING CODE 6560-50-P