[Federal Register Volume 63, Number 178 (Tuesday, September 15, 1998)]
[Proposed Rules]
[Pages 49321-49323]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-24473]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 300
[FRL-6159-5]
National Oil and Hazardous Substances Pollution Contingency Plan;
National Priorities List
AGENCY: Environmental Protection Agency.
ACTION: Notice of intent to delete Operable Unit 2 of the South Andover
Salvage Yards site from the National Priorities List; request for
comments.
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SUMMARY: The United States Environmental Protection Agency (U.S. EPA)
Region 5 announces its intent to delete operable unit OU2 of the South
Andover Salvage Yards Site (the Site) from the National Priorities List
(NPL) and requests public comment on this action. The NPL constitutes
Appendix B of 40 CFR part 300 which is the National Oil and Hazardous
Substances Pollution Contingency Plan (NCP), which the U.S. EPA
promulgated pursuant to section 105 of the Comprehensive Environmental
Response, Compensation, and Liability Act of 1980 (CERCLA) as amended.
This action is being taken by the U.S. EPA, because it has been
determined that Responsible Parties have implemented all response
actions required and the U.S. EPA, in consultation with the State of
Minnesota, has determined that no further response is appropriate for
this particular operable unit. This action constitutes a partial
delisting of the Site from the NPL. Moreover, the U.S. EPA and the
State have determined that remedial activities conducted at the Site to
date have been protective of public health, welfare, and the
environment.
DATES: Comments concerning the proposed deletion of the Site's OU2 from
the NPL may be submitted on or before October 15, 1998.
[[Page 49322]]
ADDRESSES: Comments may be mailed to John O'Grady, Remedial Project
Manager, or Gladys Beard, Associate Remedial Project Manager, Superfund
Division, U.S. EPA, Region 5, 77 W. Jackson Blvd. (SR-6J), Chicago, IL
60604. Comprehensive information on the site is available at the U.S.
EPA's Region 5 office and at the local information repository located
at: Andover City Hall, 1685 N. W. Crosstown Blvd., Andover, MN 55303.
Requests for comprehensive copies of documents should be directed
formally to the Region 5 Docket Office. The address and phone number
for the Regional Docket Officer is Jan Pfundheller (H-7J), U.S. EPA,
Region 5, 77 W. Jackson Blvd., Chicago, IL 60604, (312) 353-5821.
FOR FURTHER INFORMATION CONTACT: John O'Grady, Remedial Project Manager
at (312) 886-1477 or Gladys Beard (SR-6J), Associate Remedial Project
Manager, Superfund Division, U.S. EPA, Region 5, 77 W. Jackson Blvd.,
Chicago, IL 60604, (312) 886-7253 or Don DeBlasio (P-9J), Office of
Public Affairs, U.S. EPA, Region 5, 77 W. Jackson Blvd., Chicago, IL
60604, (312) 886-4360.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Introduction
II. NPL Deletion Criteria
III. Deletion Procedures
IV. Basis for Intended Site Deletion
I. Introduction
The U.S. EPA Region 5 announces its intent to delete OU2 of the
South Andover Salvage Yards Site from the NPL, which constitutes
Appendix B of the (NCP), and requests comments on the proposed
deletion. The U.S. EPA identifies sites that appear to present a
significant risk to public health, welfare or the environment, and
maintains the NPL as the list of those sites. Sites on the NPL may be
the subject of remedial actions financed by the Potentially Responsible
Parties or the Hazardous Substance Superfund Response Trust Fund
(Fund). Pursuant to section 300.425(e)(3) of the NCP, any site or
portion of a site deleted from the NPL remains eligible for Fund-
financed remedial actions if the conditions at the Site warrant such
action.
The U.S. EPA will accept comments on this proposal for thirty (30)
days after publication of this document in the Federal Register.
Section II of this document explains the criteria for deleting
sites or portions of sites from the NPL. Section III discusses
procedures that U.S. EPA is using for this action. Section IV discusses
the history of this site and explains how the Site meets the deletion
criteria.
Deletion of sites from the NPL does not itself create, alter, or
revoke any individual's rights or obligations. Furthermore, deletion
from the NPL does not in any way alter the U.S. EPA's right to take
enforcement actions, as appropriate. The NPL is designed primarily for
informational purposes and to assist in Agency management.
II. NPL Deletion Criteria
The NCP establishes the criteria that the Agency uses to delete
sites from the NPL. In accordance with 40 CFR 300.425(e), sites or
portions of a site may be deleted from the NPL where no further
response is appropriate. In making this determination, the U.S. EPA
will consider, in consultation with the State, whether any of the
following criteria have been met:
(i) Responsible parties or other persons have implemented all
appropriate response actions required; or
(ii) All appropriate Fund-financed responses under CERCLA have been
implemented, and no further response action by responsible parties is
appropriate; or
(iii) The Remedial investigation has shown that the release poses
no significant threat to public health or the environment and,
therefore, remedial measures are not appropriate.
III. Deletion Procedures
Upon determination that at least one of the criteria described in
Sec. 300.425(e) has been met, the U.S. EPA may formally begin deletion
procedures once the State has concurred. This Federal Register notice,
and a concurrent notice in the local newspaper in the vicinity of the
Site, announce the initiation of a 30-day comment period. The public is
asked to comment on the U.S. EPA's intention to delete a portion of the
Site from the NPL. All critical documents needed to evaluate the U.S.
EPA's decision are included in the information repository and the
deletion docket.
Upon completion of the public comment period, if necessary, the
U.S. EPA Regional Office will prepare a Responsiveness Summary to
evaluate and address comments that were received. The public is welcome
to contact the U.S. EPA Region 5 Office to obtain a copy of this
responsiveness summary, if one is prepared. If the U.S. EPA then
determines the deletion from the NPL is appropriate, final notice of
deletion will be published in the Federal Register.
IV. Basis for Intended Site Deletion
The Site is located in the city of Andover, Anoka County,
Minnesota, approximately 16 miles north-northwest of Minneapolis and 3
miles northeast of the City of Anoka. The Site is situated at 45
degree, 16 minutes N Latitude, and 93 degrees, 12 degrees West
Longitude, in the south half of Section 32, Township 32 North, Range 24
West of Grow Township.
The Site is comprised of approximately 50 acres. Bunker Lake
Boulevard defines the northern extent of the Site. The eastern site
boundaries roughly 500 feet west of Jay Street.
Small businesses and new residential developments are located near
the Site. For many years the area's population was minimal, however,
residential development has encroached the Site since the early 1970s.
Development continues to occur around the Site.
There are several small recreational lakes in the area. Crooked
Lake is one mile west of the Site and Bunker Lake is 1\1/4\ miles to
the east. The Site is in the Coon Creek watershed which supports an oak
savanna plant community.
The remediation effort for the Site has been divided into two units
or discrete actions, referred to as ``operable units'' (OUs). They are
as follows:
OU 1: Remediation of contaminated groundwater.
OU 2: Remediation of contaminated soil.
The operable unit under consideration for deletion from the NPL is
Operable Unit 2: Contaminated Soil. The Remedial Investigation (RI),
Feasibility Study (FS) and Proposed Plan for OU2 of the Site were
released to the public for comment on October 9, 1991. The RI
determined that the nature and extent of soil and buried contamination
at the Site is distributed in localized ``hot spots''. Seven hot spots
were found at the Site which presented a risk to human health. These
hot spots were generally found in surface soils at a depth of six feet
or less.
The remedial action objective for the soil OU was to clean-up the
contaminants of concern to a level which is protective by biologically
treating contaminated soil or transporting it off-site where it is
contained in a secured, permitted landfill.
The U.S. EPA and the Minnesota Pollution Control Agency (MPCA)
determined that the South Andover Superfund Site contained hazardous
substances which posed a risk to human health. The hazardous substances
which posed such a threat are polycyclic aromatic hydrocarbons (PAHs),
[[Page 49323]]
polychlorinated biphenyls (PCBs), lead and antimony. The source of
these hazardous substances is contaminated soil which has come into
contact with leaking drums which were disposed of at the Site,
electrical transformers and/or salvaged automobiles.
PAHs are probable carcinogens that exhibit a low subsurface
mobility. PAHs also have a low water solubility. They originate as
constituents of crude oil fractions. Such crude oil fractions include
fuel and motor oils, as well as coal tar fractions. The highest PAH
concentration found at the Site was 30.3 ppm.
PCBs are probable carcinogens that also exhibit a relatively low
potential for subsurface mobility. PCBs are chemically inert and
insoluble in water. PCBs do adsorb strongly to soils, the amount of
PCBs adsorbed is proportional to the amount of organic material in the
soil. Based on their strong adsorption to soil organic matter and their
relative insolubility in water, PCBs can be persistent. PCBs can be
found in oils, greases, dielectric liquids, and thermostatic or
insulting fluids, especially in electrical equipment such transformers.
On December 24, 1991, a Record of Decision was signed for OU2 that
included:
Excavate and treat approximately 2,100 cubic yards of predominately
PAH-contaminated soils using an above-ground biological treatment unit.
Use clean fill from other areas of the site as backfill for the
excavated areas.
Biologically treated soil would be returned to the Site after
performance testing confirmed successful biodegradation of the PAHs.
Excavate and transport approximately 9,300 cubic yards of soils
contaminated with PCBs, PAHs, lead and antimony to an off-site soiled
waste landfill permitted to receive industrial and/or commercial
wastes. Included in this component is the replacement of excavated soil
with clean fill from other areas of the site.
Sample and remove approximately twenty drums located on the Site.
A ROD amendment for OU2 of the remedial action was signed on May
31, 1994. U.S. EPA amended its original decision so that the
predominately PAH-contaminated soils would be taken off-site for
thermal treatment in either a rotary kiln incinerator or a low-
temperature thermal desorption unit. Additionally, this amendment
served to update the Maximum Contaminant Levels (MCLs) for several
constituents which are currently being monitored in groundwater. The
need for groundwater monitoring would be assessed three years after all
excavation activities had been completed.
The amended remedy when used in conjunction with the contaminated
groundwater monitoring remedy (OU1) addressed the potential threat
posed to groundwater by eliminating or reducing the risks posed by the
Site.
Remedial Action (RA) construction began at the Site in July 1994.
The U.S. EPA and MPCA provided field approvals of construction quality
control and field modifications. The RA was constructed in accordance
with the Remedial Design report, which was approved on June 16, 1994.
A Prefinal Inspection of the RA was completed on September 30,
1994. 11A Prefinal Inspection Report was approved by U.S. EPA on
October 11, 1994. The punch list of items identified in the Prefinal
Inspection Report were completed by October 28, 1994. Preliminary Close
Out Report (PCOR) was signed on November 1, 1994.
The Final Inspection of the Site was completed on November 15,
1994. During the inspection, all items noted in the Pre-Final
Inspection Report were found to be complete. All contaminated soil was
either destroyed through thermal treatment or transported off-site
where it was contained in a secured, permitted landfill. No
contaminated soil identified in the RI was left on-site to pose a human
health or environmental risk. All remedial actions were deemed to be
completed.
The final Remedial Action Report for OU2 (Soil Remediation) was
signed and submitted to the U.S. EPA on December 2, 1994.
U.S. EPA, with concurrence from the State of Minnesota, has
determined that Responsible Parties implemented all appropriate
response actions required for OU2 at the Site. Therefore, the U.S. EPA
proposes to delete OU2 two from the NPL.
Dated: August 31, 1998.
Gail W. Ginsberg,
Acting Regional Administrator, Region V.
[FR Doc. 98-24473 Filed 9-14-98; 8:45 am]
BILLING CODE 6560-50-P
