National Oil and Hazardous Substances Pollution Contingency Plan; National Priorities List: Deletion of the Sola Optical U.S.A., Inc. Superfund Site, 44455-44459 [2013-17828]
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Federal Register / Vol. 78, No. 142 / Wednesday, July 24, 2013 / Rules and Regulations
Transfer and Advancement Act of 1995
(NTTAA) (15 U.S.C. 272 note).
ENVIRONMENTAL PROTECTION
AGENCY
VII. Congressional Review Act
40 CFR Part 300
Pursuant to the Congressional Review
Act (5 U.S.C. 801 et seq.), EPA will
submit a report containing this rule and
other required information to the U.S.
Senate, the U.S. House of
Representatives, and the Comptroller
General of the United States prior to
publication of the rule in the Federal
Register. This action is not a ‘‘major
rule’’ as defined by 5 U.S.C. 804(2).
[EPA–HQ–SFUND–1990–0010; FRL 9836–9]
List of Subjects in 40 CFR Part 180
SUMMARY:
Environmental protection,
Administrative practice and procedure,
Agricultural commodities, Pesticides
and pests, Reporting and recordkeeping
requirements.
Dated: July 16, 2013.
Lois Rossi,
Director, Registration Division, Office of
Pesticide Programs.
Therefore, 40 CFR chapter I is
amended as follows:
PART 180—[AMENDED]
1. The authority citation for part 180
continues to read as follows:
■
Authority: 21 U.S.C. 321(q), 346a and 371.
2. In § 180.176, add alphabetically the
following commodities and the footnote
to the table in paragraph (a) to read as
follows:
■
§ 180.176 Mancozeb; tolerances for
residues.
(a) * * *
Parts per
million
Commodity
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Walnut .........................................
*
0.70
*
*
*
*
10
*
are no U.S. registrations for use of
mancozeb on tangerine.
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Environmental Protection
Agency.
ACTION: Direct final rule.
AGENCY:
The Environmental Protection
Agency (EPA) Region 9 is publishing a
direct final Notice of Deletion of the
Sola Optical U.S.A., Inc. Superfund Site
(Site), located in Petaluma, California,
from the National Priorities List (NPL).
The NPL, promulgated pursuant to
section 105 of the Comprehensive
Environmental Response,
Compensation, and Liability Act
(CERCLA) of 1980, as amended, is an
appendix of the National Oil and
Hazardous Substances Pollution
Contingency Plan (NCP). This direct
final deletion is being published by EPA
with the concurrence of the State of
California, through the California
Regional Water Quality Control Board—
San Francisco Bay Region, because EPA
has determined that all appropriate
response actions under CERCLA have
been completed. However, this deletion
does not preclude future actions under
Superfund.
DATES: This direct final deletion is
effective September 23, 2013, unless
EPA receives adverse comments by
August 23, 2013. If adverse comments
are received, EPA will publish a timely
withdrawal of the direct final deletion
in the Federal Register informing the
public that the deletion will not take
effect.
Submit your comments,
identified by Docket ID no. EPA–HQ–
SFUND–1990–0010, by one of the
following methods:
• https://www.regulations.gov. Follow
on-line instructions for submitting
comments.
• Email: rodriguez.dante@epa.gov.
• Fax: (415)947–3528.
• Mail: Dante Rodriguez, U.S. EPA
Region 9, mail code SFD–8–2, 75
Hawthorne Street, San Francisco, CA
94105.
• Hand delivery: U.S. EPA Region 9,
75 Hawthorne Street, mail code SFD–8–
2, San Francisco, CA 94105.
Such deliveries are only accepted
during the Docket’s normal hours of
operation, and special arrangements
ADDRESSES:
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1 There
National Oil and Hazardous
Substances Pollution Contingency
Plan; National Priorities List: Deletion
of the Sola Optical U.S.A., Inc.
Superfund Site
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should be made for deliveries of boxed
information.
Instructions: Direct your comments to
Docket ID no. EPA–HQ–SFUND–1900–
0010. EPA’s policy is that all comments
received will be included in the public
docket without change and may be
made available online at https://
www.regulations.gov, including any
personal information provided, unless
the comment includes information
claimed to be Confidential Business
Information (CBI) or other information
whose disclosure is restricted by statute.
Do not submit information that you
consider to be CBI or otherwise
protected through https://
www.regulations.gov or email. The
https://www.regulations.gov Web site is
an ‘‘anonymous access’’ system, which
means EPA will not know your identity
or contact information unless you
provide it in the body of your comment.
If you send an email comment directly
to EPA without going through https://
www.regulations.gov, your email
address will be automatically captured
and included as part of the comment
that is placed in the public docket and
made available on the Internet. If you
submit an electronic comment, EPA
recommends that you include your
name and other contact information in
the body of your comment and with any
disk or CD–ROM you submit. If EPA
cannot read your comment due to
technical difficulties and cannot contact
you for clarification, EPA may not be
able to consider your comment.
Electronic files should avoid the use of
special characters, any form of
encryption, and be free of any defects or
viruses.
Docket
All documents in the docket are listed
in the https://www.regulations.gov index.
Although listed in the index, some
information is not publicly available,
e.g., CBI or other information whose
disclosure is restricted by statue. Certain
other material, such as copyrighted
material, will be publicly available only
in the hard copy. Publicly available
docket materials are available either
electronically in https://
www.regulations.gov or in hard copy at:
Superfund Records Center, 95
Hawthorne St., Room 403, Mail Stop
SFD–7C, San Francisco, CA 94105,
(415) 536–2000, Mon–Fri: 8:00 a.m. to
5:00 p.m.;
or the Site Repository at
Petaluma Public Library, 100
Fairgrounds Drive, Petaluma, CA
94952, (707) 763–9801, Mon, Thurs,
Fri, Sat: 10:00 a.m. to 6:00 p.m., Tues,
Wed: 10:00 a.m. to 9:00 p.m.
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Federal Register / Vol. 78, No. 142 / Wednesday, July 24, 2013 / Rules and Regulations
FOR FURTHER INFORMATION CONTACT:
Dante Rodriguez, Remedial Project
Manager, U.S. Environmental Protection
Agency, Region 9, SFD–8–2, 75
Hawthorne Street, San Francisco, CA
94105, (415) 972–3166, email:
rodriguez.dante@epa.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents:
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I. Introduction
II. NPL Deletion Criteria
III. Deletion Procedures
IV. Basis for Site Deletion
V. Deletion Action
I. Introduction
EPA Region 9 is publishing this direct
final Notice of Deletion of the Sola
Optical U.S.A., Inc. Superfund site
(Site), from the National Priorities List
(NPL). The NPL constitutes Appendix B
of 40 CFR part 300, which is the Oil and
Hazardous Substances Pollution
Contingency Plan (NCP), which EPA
promulgated pursuant to section 105 of
the Comprehensive Environmental
Response, Compensation and Liability
Act (CERCLA) of 1980, as amended.
EPA maintains the NPL as the list of
sites that appear to present a significant
risk to public health, welfare, or the
environment. Sites on the NPL may be
the subject of remedial actions financed
by the Hazardous Substance Superfund
(Fund). As described in 300.425(e)(3) of
the NCP, sites deleted from the NPL
remain eligible for Fund-financed
remedial actions if future conditions
warrant such actions.
Because EPA considers this action to
be noncontroversial and routine, this
action will be effective September 23,
2013 unless EPA receives adverse
comments by August 23, 2013. Along
with this direct final Notice of Deletion,
EPA is co-publishing a Notice of Intent
to Delete in the ‘‘Proposed Rules’’
section of the Federal Register. If
adverse comments are received within
the 30-day public comment period on
this deletion action, EPA will publish a
timely withdrawal of this direct final
Notice of Deletion before the effective
date of the deletion, and the deletion
will not take effect. EPA will, as
appropriate, prepare a response to
comments and continue with the
deletion process on the basis of the
Notice of Intent to Delete and the
comments already received. There will
be no additional opportunity to
comment.
Section II of this document explains
the criteria for deleting sites from the
NPL. Section III discusses procedures
that EPA is using for this action. Section
IV discusses the Sola Optical U.S.A.,
Inc. Superfund Site and demonstrates
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how it meets the deletion criteria.
Section V discusses EPA’s action to
delete the Site from the NPL unless
adverse comments are received during
the public comment period.
II. NPL Deletion Criteria
The NCP establishes the criteria that
EPA uses to delete sites from the NPL.
In accordance with 40 CFR 300.425(e),
sites may be deleted from the NPL
where no further response is
appropriate. In making such a
determination pursuant to 40 CFR
300.425(e), 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;
ii. all appropriate Fund-financed
response under CERCLA has 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, the taking
of remedial measures is not appropriate.
III. Deletion Procedures
The following procedures apply to
deletion of the Site:
(1) EPA consulted with the State of
California prior to developing this direct
final Notice of Deletion and the Notice
of Intent to Delete co-published today in
the ‘‘Proposed Rules’’ section of the
Federal Register.
(2) EPA has provided the state 30
working days for review of this notice
and the parallel Notice of Intent to
Delete prior to their publication today,
and the state, through the California
Regional Water Quality Control Board—
San Francisco Bay Region, has
concurred on the deletion of the Site
from the NPL.
(3) Concurrently with the publication
of this direct final Notice of Deletion, a
notice of the availability of the parallel
Notice of Intent to Delete is being
published in a major local newspaper,
the Petaluma Argus-Courier. The
newspaper notice announces the 30-day
public comment period concerning the
Notice of Intent to Delete the Site from
the NPL.
(4) The EPA placed copies of
documents supporting the proposed
deletion in the deletion docket and
made these items available for public
inspection and copying at the Site
information repositories identified
above.
(5) If adverse comments are received
within the 30-day public comment
period on this deletion action, EPA will
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publish a timely notice of withdrawal of
this direct final Notice of Deletion
before its effective date and will prepare
a response to comments and continue
with the deletion process on the basis of
the Notice of Intent to Delete and the
comments already received.
Deletion of a site from the NPL does
not itself create, alter, or revoke any
individual’s rights or obligations.
Deletion of a site from the NPL does not
in any way alter EPA’s right to take
enforcement actions, as appropriate.
The NPL is designed primarily for
informational purposes and to assist
EPA management. Section 300.425(e)(3)
of the NCP states that the deletion of a
site from the NPL does not preclude
eligibility for future response actions,
should future conditions warrant such
actions.
IV. Basis for Site Deletion
The following information provides
EPA’s rationale for deleting the Site
from the NPL:
Site Background and History
The Site (CAD981171523) is located
at 1500 Cader Lane in the City of
Petaluma in Sonoma County, California.
The Site’s main property contains a
manufacturing building and adjoining
administration office building. Six
underground storage tanks (USTs) were
formerly located behind the north
corner of the manufacturing facility. The
Site building is currently occupied by
three companies, which utilize the main
facility building. There is a fence
located along the eastern Site boundary.
Since 2005, an asphalt parking lot and
four building pads with the associated
below grade infrastructure (i.e.,
electrical and plumbing) have been
constructed on the auxiliary 11 acre lot,
adjacent to the main property.
Sola manufactured ophthalmic lenses
at the facility from 1978 through 2001.
The manufacturing process involved the
injection of a catalyzed, thermosetting
resin into a cavity between polished
glass molds. The mold assembly was
then placed in an air oven to cure the
resin. The assembly was removed from
the oven and subsequently put through
a cleaning process before the production
was repeated. The six USTs were used
to store solvents such as 1,1,1trichloroethane (1,1,1-TCA), acetone,
and methanol.
In May 1982, Sola found low
concentrations of volatile organic
compound (VOC) contamination in the
groundwater beneath the Site, near the
six USTs. In 1983, the San Francisco
Regional Water Quality Control Board
(Regional Board) directed Sola to
investigate the contamination, and 1,1-
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dichloroethane (1,1-DCA), 1,1dichloroethene (1,1-DCE), methylene
chloride, and 1,1,1-TCA were identified
in the groundwater. In July 1985, Sola
excavated and removed the six USTs.
When the tanks were removed, there
were no signs of leakage from the tanks;
however, observations of the tank fill
pipes and surrounding backfill showed
staining on the pipes and in the adjacent
backfill. It was concluded that the
groundwater contamination might be a
result of accidental spillage adjacent to,
or leakage from, the fill pipes.
The tank removal included excavation
of gravel backfill materials and three to
five feet of native soil from the sides and
bottom of the excavation pit.
Confirmation sampling identified the
presence of three contaminants: acetone,
1,1-DCE, and trans-1,2-dichloroethene.
Based on these findings, an additional
two feet of soil was excavated from the
eastern wall of the former tank area.
Further confirmation sampling
demonstrated the presence of VOCs,
including acetone. No additional
excavation was performed.
In July 1986, soil gas samples were
collected from 40 locations, ranging
from three to five feet bgs, to determine
if VOCs were migrating from shallow
groundwater and to aid in selection of
locations for groundwater monitoring
and extraction wells. Chemicals
detected in the soil gas included:
chloroform, carbon tetrachloride, 1,1DCA, 1,1-DCE, tetrachloroethene (PCE),
and 1,1,1-TCA. Maximum
concentrations were found
approximately 70 feet downgradient
from the location of the former USTs.
In 1987, the Regional Board ordered
Sola to construct and operate a
groundwater extraction and treatment
system (GWTS). Sola conducted the
activities, with the treated groundwater
being discharged into Adobe Creek, just
northwest of the Site, under a permit
from the Regional Board. The extraction
and treatment system began operating in
1988. Sola also arranged to have the City
of Petaluma shut down the nearby
municipal water supply well, to avoid
interference with the groundwater
clean-up efforts and prevent potential
use of Site-impacted groundwater.
In 1989, EPA became the lead
regulatory agency for remedial activities
at the Site. On June 24, 1988, the Site
was proposed for NPL Listing (53
Fed.Reg. 23987). On February 21, 1990,
EPA added the Site to the National
Priorities List of Superfund sites (55
Fed.Reg. 6153). Soon thereafter, EPA
issued an administrative order directing
Sola to conduct further environmental
sampling and to prepare a remedial
investigation report and a feasibility
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study of clean-up options, both of which
Sola completed in 1991.
Ongoing or Potential Redevelopment
The 35-acre Sola property is zoned for
industrial use. Land-use in the
surrounding area is industrial,
commercial, residential, and
undeveloped land. The adjacent
property to the west of the Site was
previously owned by Stero Company, a
manufacturer of dishwashers. There are
residential subdivisions to the north and
northwest of the Site, approximately
200 feet away. Property east of the Site
is used for office space and the Harvest
Christian School.
The approximately 11-acre (889,060
square feet) previously undeveloped
auxiliary lot in the southwest portion of
the Site was purchased by RNM Cader,
L.L.C. (RNM) for development in
approximately 2001. An asphalt parking
lot and four building pads with the
associated below grade infrastructure
were constructed between 2005 and
2010. The approximately 24-acre main
lot of the Sola property, including the
buildings, was sold to Kland, L.L.C. in
2002. The buildings include the original
manufacturing building, the adjoining
administration office building, and a
parking lot surrounding the buildings.
Three commercial tenants currently
occupy the Site building: Petaluma
Poultry, Reynolds Packaging, and Scott
Laboratories. Petaluma Poultry conducts
sales and distribution of poultry;
Reynolds Packaging conducts storage
and distribution of food packaging
materials; and Scott Laboratories
conducts manufacturing and finishing
of cork for the wine industry.
Remedial Investigation and Feasibility
Study (RI/FS)
Twelve chemicals of potential
concern were cited in the Record of
Decision for the Site in 1991 (1991
ROD): acetone, butanone, 1,1-DCA, 1,2dichloroethane (1,2-DCA), 1,1-DCE,
Freon 113, 4-methyl-2-pentanone, PCE,
toluene, 1,1,1-TCA, 1,1,2trichloroethane (1,1,2-TCA), and
trichloroethene (TCE). Contamination
was found in the soil (acetone ranging
up to 54 milligrams per kilogram (mg/
kg) and 1,1-DCE at 0.051 mg/kg), and in
the groundwater (primarily 1,1-DCA,
1,1-DCE, 1,1,1-TCA, and Freon-113).
The highest contaminant concentration
in groundwater was 1,1-DCE (3,300
micrograms per liter [mg/L]), detected in
shallow well W–14 located
downgradient of the former UST area.
The wells on the downgradient edge of
the Site indicated that the VOC
contamination at the edge of the Sola
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44457
property was at or below the clean-up
standards.
The risk assessment presented in the
1991 ROD indicated an excess lifetime
cancer risk based on use of on-site
contaminated groundwater for drinking
water of 1 × 10¥4 (1 person out of
10,000 people), primarily from 1,1-DCE.
The non-carcinogenic risk estimate for
contaminated groundwater indicated
that no adverse non-carcinogenic health
effects were expected.
The ecological assessment identified
Adobe Creek as the closest surface water
body to the Site and as a site of a local
project to reintroduce anadromous
steelhead trout to the creek. However,
water quality samples from groundwater
monitoring wells installed between the
Sola property and Adobe Creek did not
detect any contaminants, indicating that
discharge of contaminants to surface
water had not occurred. In addition,
contaminants detected in groundwater
at the Site were below their
corresponding federal surface water
quality criteria for the protection of
aquatic life.
Selected Remedy
EPA issued the ROD on September 27,
1991. The Remedial Action Objective
(RAO) was to restore groundwater to its
beneficial use, which is drinking water.
The 1991 ROD determined that an
expanded GWTS was the most
appropriate method for remediating
contamination at the Site. The selected
site remedy consisted of the following
elements:
• Groundwater monitoring to assure
capture of contaminated groundwater
and to demonstrate restoration of
groundwater to cleanup standards
throughout the aquifer
• Operation of existing extraction
wells (8)
• Construction and operation of two
additional shallow extraction wells
• Conversion of monitoring wells LF–
13 and LF–17 to deep extraction wells
• Construction and operation of
additional piping for the new and
converted wells
• On-site treatment and discharge offsite or to the City of Petaluma sewage
treatment system.
A ROD Amendment was signed on
March 30, 2007, modifying the 1991
ROD but leaving intact its remedial
action objective of restoring
groundwater to its beneficial use as
drinking water. The 2007 ROD
Amendment addressed two issues:
(1) groundwater clean-up, and (2)
Institutional Controls (ICs). The ROD
Amendment includes the following
elements:
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• Monitored Natural Attenuation
(MNA) to achieve groundwater clean-up
standards
• ICs to protect against inappropriate
use of the contaminated groundwater
until the clean-up standards are
achieved
• Monitoring of both components
until clean-up standards are achieved
and sustained.
Response Actions
Sola expanded the system in 1992,
pursuant to the 1991 ROD and a
Unilateral Administrative Order issued
by EPA, and continued its operations.
EPA signed an ‘‘Interim Close-out
Report’’ in 1992 to document
completion of the construction and
operability of the system. This report
served as the Preliminary Close-out
Report and as the Remedial Action
Report.
The system was expected to restore
the shallow groundwater to clean-up
standards within 15–20 years. Initially,
concentrations of the VOC
contamination decreased significantly.
By 1997, however, the rate of
contaminant reduction had decreased.
Groundwater monitoring data at four
wells showed that concentrations of two
contaminants, 1,1-DCE and 1,1,-DCA,
appeared to have stabilized and reached
an asymptote at levels above the cleanup standards. Continued monitoring
reflected no further reductions in
contaminant concentrations. Some areas
of the contaminated aquifer had
achieved the clean-up standard of 5
parts per billion for 1,1-DCA but not the
entire plume. The extraction and
treatment system was no longer
effectively removing these lower
concentrations of contaminants from the
groundwater. As a result, Sola shut off
the extraction and treatment system and
monitored the groundwater.
The concentrations of the two
remaining contaminants slowly
declined. In 2001, Sola analyzed the
data gathered since system shut-down
in 1997 and presented its evaluation of
MNA, following EPA guidance. Sola’s
evaluation concluded that extraction
and treatment alone would not be
capable of achieving the clean-up
standard for the remaining areas, but
MNA likely would be. EPA indicated it
would proceed with amending the 1991
ROD to establish MNA as the new
remedy. The extraction and treatment
system was decommissioned in 2002.
Sampling results showed
concentrations of the two contaminants
continuing to decline. In March 2007,
EPA signed the ROD Amendment that
formally selected MNA and ICs. No
additional facilities were constructed for
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the implementation of the ROD
Amendment.
Sola conducted the semi-annual
sampling through December 2009,
followed by one groundwater
monitoring event conducted in 2010,
none in 2011, and one in 2012. In 2012,
EPA determined that the clean-up
standards had been achieved and
sustained, as documented in a Remedial
Action Report for the MNA remedy,
signed on May 11, 2012.
Institutional Controls
The 2007 ROD Amendment added a
requirement that ICs be implemented to
protect against inappropriate use of the
contaminated groundwater until the
clean-up standards are achieved.
The IC that has been implemented at
the Site involves the local well
permitting department, the County of
Sonoma Permit and Resource
Management Department (CSPRMD)
placing a note within its system,
indicating that the parcel is part of a
Superfund site and that well permits
should not be issued before consulting
with the CSPRMD and EPA. If anyone
requests a permit for the Sola Site
parcel, this note would appear. This
control was implemented in October
2011 (Sonoma County, 2011).
Cleanup Goals
Site closure criterion was agreed upon
by the Site team in January 2006, in
response to recommendations presented
in the five-year review report. It was
agreed that groundwater monitoring at
well W–27 would be continued until it
was demonstrated that the cleanup goal
for 1,1-DCA (i.e., the California
Maximum Contaminant Limit (MCL) of
5 mg/l) and other VOCs had been
maintained for four consecutive
semiannual sampling events, or a
minimum of two years. At that time,
1,1-DCA was the only constituent whose
concentration in groundwater remained
above the MCL.
The 1,1-DCA concentrations in well
W–27 have been below the MCL in three
of the last four monitoring events, and
have remained below the MCL since
June 2010 (greater than two years). In
addition, the July 2012 1,1-DCA
concentration is the lowest ever
detected in this well, indicating the
continued attenuation of 1,1-DCA. The
1,1-DCE concentration has also
decreased from the June 2010
concentration to below the laboratory
reporting limit of 0.5 mg/l.
The decreasing trend of 1,1-DCA
concentrations in well W–27 was
assessed using both the concentrationversus-time graph and a Mann-Kendall
trend analysis.
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Based on the two consecutive years of
VOC concentrations below their
respective MCLs and the decreasing
concentration trend, EPA believes the
groundwater cleanup standards have
been achieved and the Site can be
closed-out.
Operation and Maintenance
No operation and maintenance (O&M)
activities are required at this site. All
clean-up goals have been met,
consisting of attaining drinking water
MCL standards in the groundwater. No
further remedial actions or O&M thereof
are required. No ICs are required to
remain in place.
Five-Year Review
No further five-year reviews will be
conducted, as they are no longer
required. No wastes were left in place
above an unlimited use, unrestricted
exposure level. To date, three five-year
reviews have been conducted. These
reviews were conducted because
contaminant levels in the groundwater
exceeded the ROD clean-up standards.
The groundwater has since attained all
clean-up standards.
Summary of Last Five-Year Review
The most recent five-year review was
completed in September 2010 and
contained the following Protectiveness
Statement: ‘‘The remedy at the Sola Site
currently protects human health and the
environment because the groundwater
contamination has been reduced below
drinking water standards (MCLs) in all
but a very limited area around one well,
no exposure pathways to the remaining
contamination exist, and no one is using
the groundwater resource. However, in
order for the remedy to be protective in
the long-term, the following actions
need to be taken: The well permitting
restriction IC within the CSPRMD
Permits Plus system must be properly
implemented to ensure the
protectiveness of the remedy. Determine
whether the restrictive covenant IC is
required to protect human health in the
short-term, and implement it if so.’’ As
a result, EPA has insured proper
implementation of the well permitting
restriction IC and has determined that
the restrictive covenant IC was not
needed because the groundwater cleanup standard had been attained.
Community Involvement
Public participation activities have
been satisfied as required in CERCLA
Section 113(k), 42 U.S.C. 9613(k), and
CERCLA section 117, 42 U.S.C. 9617.
Community involvement activities were
conducted at the site, as required,
during major steps of the CERCLA
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process, including the 1991 Record of
Decision, 2007 Record of Decision
Amendment, and the 2000, 2005 and
2010 Five Year Reviews. Such
community involvement activities
included making site documents
available to the public, publishing
public notices in local newspapers, and
providing public comment
opportunities.
EPA’s community involvement
activities associated with this deletion
will consist of placing the deletion
docket in the local site information
repository and placing a public notice
(of EPA’s intent to delete the site from
the NPL) in a local newspaper of general
circulation.
List of Subjects in 40 CFR Part 300
Environmental protection, Air
pollution control, Chemicals, Hazardous
waste, Hazardous substances,
Intergovernmental relations, Penalties,
Reporting and recordkeeping
requirements, Superfund, Water
pollution control, Water supply.
Dated: July 15, 2013.
Jane Diamond,
Director, Water Division, U.S. EPA Region
9.
For the reasons set out in this
document, 40 CFR part 300 is amended
as follows:
The implemented remedy achieves
the degree of cleanup specified in the
ROD and ROD Amendment for all
pathways of exposure. All selected
remedial action objectives and clean-up
goals are consistent with agency policy
and guidance. No further Superfund
responses are needed to protect human
health and the environment at the Site.
The NCP (40 CFR 300.425(e)) states
that a site may be deleted from the NPL
when no further response action is
appropriate. EPA, in consultation with
the State of California, has determined
that all required response actions have
been implemented, and no further
response action by the responsible
parties is appropriate.
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.
ehiers on DSK2VPTVN1PROD with RULES
VerDate Mar<15>2010
17:00 Jul 23, 2013
Jkt 229001
1. The authority citation for part 300
continues to read as follows:
2. Table 1 of Appendix B to part 300
is amended by removing the entry ‘‘Sola
Optical U.S.A., Inc.’’, ‘‘Petaluma’’.
■
[FR Doc. 2013–17828 Filed 7–23–13; 8:45 am]
BILLING CODE P
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
Public Health Service
42 CFR Part 5
Designation of Health Professional(s)
Shortage Areas
CFR Correction
In Title 42 of the Code of Federal
Regulations, Parts 1 to 399, revised as of
October 1, 2012, on page 80, in
Appendix C to Part 5, in Part III,
paragraph c.1., following the phrase ‘‘as
having a mental health professional(s)’’,
insert the word ‘‘shortage’’ before the
comma.
■
[FR Doc. 2013–17858 Filed 7–23–13; 8:45 am]
BILLING CODE 1505–01–D
DEPARTMENT OF HEALTH AND
HUMAN SERVICES
Public Health Service
42 CFR Part 137
Tribal Self-Governance
CFR Correction
In Title 42 of the Code of Federal
Regulations, Parts 1 to 399, revised as of
October 1, 2012, on page 932, in the
second column, the heading ‘‘Subpart
PO 00000
Frm 00041
Fmt 4700
Sfmt 4700
[FR Doc. 2013–17859 Filed 7–23–13; 8:45 am]
BILLING CODE 1505–01–D
DEPARTMENT OF TRANSPORTATION
Surface Transportation Board
49 CFR Part 1141
[Docket No. EP 715]
Rate Regulation Reforms
ACTION:
■
The EPA, with concurrence of the
State of California through the
California Regional Water Quality
Control Board—San Francisco Bay
Region, has determined that all
appropriate response actions under
CERCLA have been completed.
Therefore, EPA is deleting the Site from
the NPL.
Because EPA considers this action to
be noncontroversial and routine, EPA is
taking it without prior publication. This
action will be effective September 23,
2013 unless EPA receives adverse
comments by August 23, 2013. If
adverse comments are received within
the 30-day public comment period, EPA
will publish a timely withdrawal of this
direct final notice of deletion before the
effective date of the deletion, and it will
not take effect. EPA will prepare a
response to comments and continue
with the deletion process on the basis of
the notice of intent to delete and the
comments already received. There will
be no additional opportunity to
comment.
P—Secretarial Responsibilities’’ is
corrected to read ‘‘Subpart O—
Secretarial Responsibilities’’.
Surface Transportation Board.
Final rules.
AGENCY:
PART 300—[AMENDED]
Determination That the Site Meets the
Criteria for Deletion in the NCP
V. Deletion Action
44459
The Surface Transportation
Board (Board) changes some of its
existing regulations and procedures
concerning rate complaint proceedings.
The Board previously created two
simplified procedures to reduce the
time, complexity, and expense of rate
cases. The Board now modifies its rules
to remove the limitation on relief for
one simplified approach, and to raise
the relief available under the other
simplified approach. The Board also
makes technical changes to the full and
simplified rate procedures; changes the
interest rate that railroads must pay on
reparations if they are found to have
charged unreasonable rates; and
announces future proceedings on
options for addressing cross-over traffic
and on proposals to address the
concerns of small agricultural shippers.
The purpose of these actions is to
ensure that the Board’s simplified and
expedited processes for resolving rate
disputes are more accessible.
DATES: These rules are effective on
August 17, 2013.
ADDRESSES: Information or questions
regarding these final rules should
reference Docket No. EP 715 and be in
writing addressed to: Chief, Section of
Administration, Office of Proceedings,
Surface Transportation Board, 395 E
Street SW., Washington, DC 20423–
0001.
SUMMARY:
FOR FURTHER INFORMATION CONTACT:
Lucille Marvin, The Board’s Office of
Public Assistance, Governmental
Affairs, and Compliance at (202) 245–
0238. Assistance for the hearing
impaired is available through the
Federal Information Relay Service
(FIRS) at (800) 877–8339.
SUPPLEMENTARY INFORMATION: The Board
modifies some of its existing regulations
and procedures regarding rate complaint
proceedings and announces two future
proceedings. The Board’s actions are
E:\FR\FM\24JYR1.SGM
24JYR1
Agencies
[Federal Register Volume 78, Number 142 (Wednesday, July 24, 2013)]
[Rules and Regulations]
[Pages 44455-44459]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-17828]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 300
[EPA-HQ-SFUND-1990-0010; FRL 9836-9]
National Oil and Hazardous Substances Pollution Contingency Plan;
National Priorities List: Deletion of the Sola Optical U.S.A., Inc.
Superfund Site
AGENCY: Environmental Protection Agency.
ACTION: Direct final rule.
-----------------------------------------------------------------------
SUMMARY: The Environmental Protection Agency (EPA) Region 9 is
publishing a direct final Notice of Deletion of the Sola Optical
U.S.A., Inc. Superfund Site (Site), located in Petaluma, California,
from the National Priorities List (NPL). The NPL, promulgated pursuant
to section 105 of the Comprehensive Environmental Response,
Compensation, and Liability Act (CERCLA) of 1980, as amended, is an
appendix of the National Oil and Hazardous Substances Pollution
Contingency Plan (NCP). This direct final deletion is being published
by EPA with the concurrence of the State of California, through the
California Regional Water Quality Control Board--San Francisco Bay
Region, because EPA has determined that all appropriate response
actions under CERCLA have been completed. However, this deletion does
not preclude future actions under Superfund.
DATES: This direct final deletion is effective September 23, 2013,
unless EPA receives adverse comments by August 23, 2013. If adverse
comments are received, EPA will publish a timely withdrawal of the
direct final deletion in the Federal Register informing the public that
the deletion will not take effect.
ADDRESSES: Submit your comments, identified by Docket ID no. EPA-HQ-
SFUND-1990-0010, by one of the following methods:
https://www.regulations.gov. Follow on-line instructions
for submitting comments.
Email: rodriguez.dante@epa.gov.
Fax: (415)947-3528.
Mail: Dante Rodriguez, U.S. EPA Region 9, mail code SFD-8-
2, 75 Hawthorne Street, San Francisco, CA 94105.
Hand delivery: U.S. EPA Region 9, 75 Hawthorne Street,
mail code SFD-8-2, San Francisco, CA 94105.
Such deliveries are only accepted during the Docket's normal hours
of operation, and special arrangements should be made for deliveries of
boxed information.
Instructions: Direct your comments to Docket ID no. EPA-HQ-SFUND-
1900-0010. EPA's policy is that all comments received will be included
in the public docket without change and may be made available online at
https://www.regulations.gov, including any personal information
provided, unless the comment includes information claimed to be
Confidential Business Information (CBI) or other information whose
disclosure is restricted by statute. Do not submit information that you
consider to be CBI or otherwise protected through https://www.regulations.gov or email. The https://www.regulations.gov Web site
is an ``anonymous access'' system, which means EPA will not know your
identity or contact information unless you provide it in the body of
your comment. If you send an email comment directly to EPA without
going through https://www.regulations.gov, your email address will be
automatically captured and included as part of the comment that is
placed in the public docket and made available on the Internet. If you
submit an electronic comment, EPA recommends that you include your name
and other contact information in the body of your comment and with any
disk or CD-ROM you submit. If EPA cannot read your comment due to
technical difficulties and cannot contact you for clarification, EPA
may not be able to consider your comment. Electronic files should avoid
the use of special characters, any form of encryption, and be free of
any defects or viruses.
Docket
All documents in the docket are listed in the https://www.regulations.gov index. Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statue. Certain other material, such
as copyrighted material, will be publicly available only in the hard
copy. Publicly available docket materials are available either
electronically in https://www.regulations.gov or in hard copy at:
Superfund Records Center, 95 Hawthorne St., Room 403, Mail Stop SFD-7C,
San Francisco, CA 94105, (415) 536-2000, Mon-Fri: 8:00 a.m. to 5:00
p.m.;
or the Site Repository at
Petaluma Public Library, 100 Fairgrounds Drive, Petaluma, CA 94952,
(707) 763-9801, Mon, Thurs, Fri, Sat: 10:00 a.m. to 6:00 p.m., Tues,
Wed: 10:00 a.m. to 9:00 p.m.
[[Page 44456]]
FOR FURTHER INFORMATION CONTACT: Dante Rodriguez, Remedial Project
Manager, U.S. Environmental Protection Agency, Region 9, SFD-8-2, 75
Hawthorne Street, San Francisco, CA 94105, (415) 972-3166, email:
rodriguez.dante@epa.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents:
I. Introduction
II. NPL Deletion Criteria
III. Deletion Procedures
IV. Basis for Site Deletion
V. Deletion Action
I. Introduction
EPA Region 9 is publishing this direct final Notice of Deletion of
the Sola Optical U.S.A., Inc. Superfund site (Site), from the National
Priorities List (NPL). The NPL constitutes Appendix B of 40 CFR part
300, which is the Oil and Hazardous Substances Pollution Contingency
Plan (NCP), which EPA promulgated pursuant to section 105 of the
Comprehensive Environmental Response, Compensation and Liability Act
(CERCLA) of 1980, as amended. EPA maintains the NPL as the list of
sites that appear to present a significant risk to public health,
welfare, or the environment. Sites on the NPL may be the subject of
remedial actions financed by the Hazardous Substance Superfund (Fund).
As described in 300.425(e)(3) of the NCP, sites deleted from the NPL
remain eligible for Fund-financed remedial actions if future conditions
warrant such actions.
Because EPA considers this action to be noncontroversial and
routine, this action will be effective September 23, 2013 unless EPA
receives adverse comments by August 23, 2013. Along with this direct
final Notice of Deletion, EPA is co-publishing a Notice of Intent to
Delete in the ``Proposed Rules'' section of the Federal Register. If
adverse comments are received within the 30-day public comment period
on this deletion action, EPA will publish a timely withdrawal of this
direct final Notice of Deletion before the effective date of the
deletion, and the deletion will not take effect. EPA will, as
appropriate, prepare a response to comments and continue with the
deletion process on the basis of the Notice of Intent to Delete and the
comments already received. There will be no additional opportunity to
comment.
Section II of this document explains the criteria for deleting
sites from the NPL. Section III discusses procedures that EPA is using
for this action. Section IV discusses the Sola Optical U.S.A., Inc.
Superfund Site and demonstrates how it meets the deletion criteria.
Section V discusses EPA's action to delete the Site from the NPL unless
adverse comments are received during the public comment period.
II. NPL Deletion Criteria
The NCP establishes the criteria that EPA uses to delete sites from
the NPL. In accordance with 40 CFR 300.425(e), sites may be deleted
from the NPL where no further response is appropriate. In making such a
determination pursuant to 40 CFR 300.425(e), 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;
ii. all appropriate Fund-financed response under CERCLA has 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,
the taking of remedial measures is not appropriate.
III. Deletion Procedures
The following procedures apply to deletion of the Site:
(1) EPA consulted with the State of California prior to developing
this direct final Notice of Deletion and the Notice of Intent to Delete
co-published today in the ``Proposed Rules'' section of the Federal
Register.
(2) EPA has provided the state 30 working days for review of this
notice and the parallel Notice of Intent to Delete prior to their
publication today, and the state, through the California Regional Water
Quality Control Board--San Francisco Bay Region, has concurred on the
deletion of the Site from the NPL.
(3) Concurrently with the publication of this direct final Notice
of Deletion, a notice of the availability of the parallel Notice of
Intent to Delete is being published in a major local newspaper, the
Petaluma Argus-Courier. The newspaper notice announces the 30-day
public comment period concerning the Notice of Intent to Delete the
Site from the NPL.
(4) The EPA placed copies of documents supporting the proposed
deletion in the deletion docket and made these items available for
public inspection and copying at the Site information repositories
identified above.
(5) If adverse comments are received within the 30-day public
comment period on this deletion action, EPA will publish a timely
notice of withdrawal of this direct final Notice of Deletion before its
effective date and will prepare a response to comments and continue
with the deletion process on the basis of the Notice of Intent to
Delete and the comments already received.
Deletion of a site from the NPL does not itself create, alter, or
revoke any individual's rights or obligations. Deletion of a site from
the NPL does not in any way alter EPA's right to take enforcement
actions, as appropriate. The NPL is designed primarily for
informational purposes and to assist EPA management. Section
300.425(e)(3) of the NCP states that the deletion of a site from the
NPL does not preclude eligibility for future response actions, should
future conditions warrant such actions.
IV. Basis for Site Deletion
The following information provides EPA's rationale for deleting the
Site from the NPL:
Site Background and History
The Site (CAD981171523) is located at 1500 Cader Lane in the City
of Petaluma in Sonoma County, California. The Site's main property
contains a manufacturing building and adjoining administration office
building. Six underground storage tanks (USTs) were formerly located
behind the north corner of the manufacturing facility. The Site
building is currently occupied by three companies, which utilize the
main facility building. There is a fence located along the eastern Site
boundary. Since 2005, an asphalt parking lot and four building pads
with the associated below grade infrastructure (i.e., electrical and
plumbing) have been constructed on the auxiliary 11 acre lot, adjacent
to the main property.
Sola manufactured ophthalmic lenses at the facility from 1978
through 2001. The manufacturing process involved the injection of a
catalyzed, thermosetting resin into a cavity between polished glass
molds. The mold assembly was then placed in an air oven to cure the
resin. The assembly was removed from the oven and subsequently put
through a cleaning process before the production was repeated. The six
USTs were used to store solvents such as 1,1,1-trichloroethane (1,1,1-
TCA), acetone, and methanol.
In May 1982, Sola found low concentrations of volatile organic
compound (VOC) contamination in the groundwater beneath the Site, near
the six USTs. In 1983, the San Francisco Regional Water Quality Control
Board (Regional Board) directed Sola to investigate the contamination,
and 1,1-
[[Page 44457]]
dichloroethane (1,1-DCA), 1,1-dichloroethene (1,1-DCE), methylene
chloride, and 1,1,1-TCA were identified in the groundwater. In July
1985, Sola excavated and removed the six USTs. When the tanks were
removed, there were no signs of leakage from the tanks; however,
observations of the tank fill pipes and surrounding backfill showed
staining on the pipes and in the adjacent backfill. It was concluded
that the groundwater contamination might be a result of accidental
spillage adjacent to, or leakage from, the fill pipes.
The tank removal included excavation of gravel backfill materials
and three to five feet of native soil from the sides and bottom of the
excavation pit. Confirmation sampling identified the presence of three
contaminants: acetone, 1,1-DCE, and trans-1,2-dichloroethene. Based on
these findings, an additional two feet of soil was excavated from the
eastern wall of the former tank area. Further confirmation sampling
demonstrated the presence of VOCs, including acetone. No additional
excavation was performed.
In July 1986, soil gas samples were collected from 40 locations,
ranging from three to five feet bgs, to determine if VOCs were
migrating from shallow groundwater and to aid in selection of locations
for groundwater monitoring and extraction wells. Chemicals detected in
the soil gas included: chloroform, carbon tetrachloride, 1,1-DCA, 1,1-
DCE, tetrachloroethene (PCE), and 1,1,1-TCA. Maximum concentrations
were found approximately 70 feet downgradient from the location of the
former USTs.
In 1987, the Regional Board ordered Sola to construct and operate a
groundwater extraction and treatment system (GWTS). Sola conducted the
activities, with the treated groundwater being discharged into Adobe
Creek, just northwest of the Site, under a permit from the Regional
Board. The extraction and treatment system began operating in 1988.
Sola also arranged to have the City of Petaluma shut down the nearby
municipal water supply well, to avoid interference with the groundwater
clean-up efforts and prevent potential use of Site-impacted
groundwater.
In 1989, EPA became the lead regulatory agency for remedial
activities at the Site. On June 24, 1988, the Site was proposed for NPL
Listing (53 Fed.Reg. 23987). On February 21, 1990, EPA added the Site
to the National Priorities List of Superfund sites (55 Fed.Reg. 6153).
Soon thereafter, EPA issued an administrative order directing Sola to
conduct further environmental sampling and to prepare a remedial
investigation report and a feasibility study of clean-up options, both
of which Sola completed in 1991.
Ongoing or Potential Redevelopment
The 35-acre Sola property is zoned for industrial use. Land-use in
the surrounding area is industrial, commercial, residential, and
undeveloped land. The adjacent property to the west of the Site was
previously owned by Stero Company, a manufacturer of dishwashers. There
are residential subdivisions to the north and northwest of the Site,
approximately 200 feet away. Property east of the Site is used for
office space and the Harvest Christian School.
The approximately 11-acre (889,060 square feet) previously
undeveloped auxiliary lot in the southwest portion of the Site was
purchased by RNM Cader, L.L.C. (RNM) for development in approximately
2001. An asphalt parking lot and four building pads with the associated
below grade infrastructure were constructed between 2005 and 2010. The
approximately 24-acre main lot of the Sola property, including the
buildings, was sold to Kland, L.L.C. in 2002. The buildings include the
original manufacturing building, the adjoining administration office
building, and a parking lot surrounding the buildings. Three commercial
tenants currently occupy the Site building: Petaluma Poultry, Reynolds
Packaging, and Scott Laboratories. Petaluma Poultry conducts sales and
distribution of poultry; Reynolds Packaging conducts storage and
distribution of food packaging materials; and Scott Laboratories
conducts manufacturing and finishing of cork for the wine industry.
Remedial Investigation and Feasibility Study (RI/FS)
Twelve chemicals of potential concern were cited in the Record of
Decision for the Site in 1991 (1991 ROD): acetone, butanone, 1,1-DCA,
1,2-dichloroethane (1,2-DCA), 1,1-DCE, Freon 113, 4-methyl-2-pentanone,
PCE, toluene, 1,1,1-TCA, 1,1,2-trichloroethane (1,1,2-TCA), and
trichloroethene (TCE). Contamination was found in the soil (acetone
ranging up to 54 milligrams per kilogram (mg/kg) and 1,1-DCE at 0.051
mg/kg), and in the groundwater (primarily 1,1-DCA, 1,1-DCE, 1,1,1-TCA,
and Freon-113). The highest contaminant concentration in groundwater
was 1,1-DCE (3,300 micrograms per liter [[mu]g/L]), detected in shallow
well W-14 located downgradient of the former UST area. The wells on the
downgradient edge of the Site indicated that the VOC contamination at
the edge of the Sola property was at or below the clean-up standards.
The risk assessment presented in the 1991 ROD indicated an excess
lifetime cancer risk based on use of on-site contaminated groundwater
for drinking water of 1 x 10-4 (1 person out of 10,000
people), primarily from 1,1-DCE. The non-carcinogenic risk estimate for
contaminated groundwater indicated that no adverse non-carcinogenic
health effects were expected.
The ecological assessment identified Adobe Creek as the closest
surface water body to the Site and as a site of a local project to
reintroduce anadromous steelhead trout to the creek. However, water
quality samples from groundwater monitoring wells installed between the
Sola property and Adobe Creek did not detect any contaminants,
indicating that discharge of contaminants to surface water had not
occurred. In addition, contaminants detected in groundwater at the Site
were below their corresponding federal surface water quality criteria
for the protection of aquatic life.
Selected Remedy
EPA issued the ROD on September 27, 1991. The Remedial Action
Objective (RAO) was to restore groundwater to its beneficial use, which
is drinking water. The 1991 ROD determined that an expanded GWTS was
the most appropriate method for remediating contamination at the Site.
The selected site remedy consisted of the following elements:
Groundwater monitoring to assure capture of contaminated
groundwater and to demonstrate restoration of groundwater to cleanup
standards throughout the aquifer
Operation of existing extraction wells (8)
Construction and operation of two additional shallow
extraction wells
Conversion of monitoring wells LF-13 and LF-17 to deep
extraction wells
Construction and operation of additional piping for the
new and converted wells
On-site treatment and discharge off-site or to the City of
Petaluma sewage treatment system.
A ROD Amendment was signed on March 30, 2007, modifying the 1991
ROD but leaving intact its remedial action objective of restoring
groundwater to its beneficial use as drinking water. The 2007 ROD
Amendment addressed two issues: (1) groundwater clean-up, and (2)
Institutional Controls (ICs). The ROD Amendment includes the following
elements:
[[Page 44458]]
Monitored Natural Attenuation (MNA) to achieve groundwater
clean-up standards
ICs to protect against inappropriate use of the
contaminated groundwater until the clean-up standards are achieved
Monitoring of both components until clean-up standards are
achieved and sustained.
Response Actions
Sola expanded the system in 1992, pursuant to the 1991 ROD and a
Unilateral Administrative Order issued by EPA, and continued its
operations. EPA signed an ``Interim Close-out Report'' in 1992 to
document completion of the construction and operability of the system.
This report served as the Preliminary Close-out Report and as the
Remedial Action Report.
The system was expected to restore the shallow groundwater to
clean-up standards within 15-20 years. Initially, concentrations of the
VOC contamination decreased significantly. By 1997, however, the rate
of contaminant reduction had decreased. Groundwater monitoring data at
four wells showed that concentrations of two contaminants, 1,1-DCE and
1,1,-DCA, appeared to have stabilized and reached an asymptote at
levels above the clean-up standards. Continued monitoring reflected no
further reductions in contaminant concentrations. Some areas of the
contaminated aquifer had achieved the clean-up standard of 5 parts per
billion for 1,1-DCA but not the entire plume. The extraction and
treatment system was no longer effectively removing these lower
concentrations of contaminants from the groundwater. As a result, Sola
shut off the extraction and treatment system and monitored the
groundwater.
The concentrations of the two remaining contaminants slowly
declined. In 2001, Sola analyzed the data gathered since system shut-
down in 1997 and presented its evaluation of MNA, following EPA
guidance. Sola's evaluation concluded that extraction and treatment
alone would not be capable of achieving the clean-up standard for the
remaining areas, but MNA likely would be. EPA indicated it would
proceed with amending the 1991 ROD to establish MNA as the new remedy.
The extraction and treatment system was decommissioned in 2002.
Sampling results showed concentrations of the two contaminants
continuing to decline. In March 2007, EPA signed the ROD Amendment that
formally selected MNA and ICs. No additional facilities were
constructed for the implementation of the ROD Amendment.
Sola conducted the semi-annual sampling through December 2009,
followed by one groundwater monitoring event conducted in 2010, none in
2011, and one in 2012. In 2012, EPA determined that the clean-up
standards had been achieved and sustained, as documented in a Remedial
Action Report for the MNA remedy, signed on May 11, 2012.
Institutional Controls
The 2007 ROD Amendment added a requirement that ICs be implemented
to protect against inappropriate use of the contaminated groundwater
until the clean-up standards are achieved.
The IC that has been implemented at the Site involves the local
well permitting department, the County of Sonoma Permit and Resource
Management Department (CSPRMD) placing a note within its system,
indicating that the parcel is part of a Superfund site and that well
permits should not be issued before consulting with the CSPRMD and EPA.
If anyone requests a permit for the Sola Site parcel, this note would
appear. This control was implemented in October 2011 (Sonoma County,
2011).
Cleanup Goals
Site closure criterion was agreed upon by the Site team in January
2006, in response to recommendations presented in the five-year review
report. It was agreed that groundwater monitoring at well W-27 would be
continued until it was demonstrated that the cleanup goal for 1,1-DCA
(i.e., the California Maximum Contaminant Limit (MCL) of 5 [mu]g/l) and
other VOCs had been maintained for four consecutive semiannual sampling
events, or a minimum of two years. At that time, 1,1-DCA was the only
constituent whose concentration in groundwater remained above the MCL.
The 1,1-DCA concentrations in well W-27 have been below the MCL in
three of the last four monitoring events, and have remained below the
MCL since June 2010 (greater than two years). In addition, the July
2012 1,1-DCA concentration is the lowest ever detected in this well,
indicating the continued attenuation of 1,1-DCA. The 1,1-DCE
concentration has also decreased from the June 2010 concentration to
below the laboratory reporting limit of 0.5 [mu]g/l.
The decreasing trend of 1,1-DCA concentrations in well W-27 was
assessed using both the concentration-versus-time graph and a Mann-
Kendall trend analysis.
Based on the two consecutive years of VOC concentrations below
their respective MCLs and the decreasing concentration trend, EPA
believes the groundwater cleanup standards have been achieved and the
Site can be closed-out.
Operation and Maintenance
No operation and maintenance (O&M) activities are required at this
site. All clean-up goals have been met, consisting of attaining
drinking water MCL standards in the groundwater. No further remedial
actions or O&M thereof are required. No ICs are required to remain in
place.
Five-Year Review
No further five-year reviews will be conducted, as they are no
longer required. No wastes were left in place above an unlimited use,
unrestricted exposure level. To date, three five-year reviews have been
conducted. These reviews were conducted because contaminant levels in
the groundwater exceeded the ROD clean-up standards. The groundwater
has since attained all clean-up standards.
Summary of Last Five-Year Review
The most recent five-year review was completed in September 2010
and contained the following Protectiveness Statement: ``The remedy at
the Sola Site currently protects human health and the environment
because the groundwater contamination has been reduced below drinking
water standards (MCLs) in all but a very limited area around one well,
no exposure pathways to the remaining contamination exist, and no one
is using the groundwater resource. However, in order for the remedy to
be protective in the long-term, the following actions need to be taken:
The well permitting restriction IC within the CSPRMD Permits Plus
system must be properly implemented to ensure the protectiveness of the
remedy. Determine whether the restrictive covenant IC is required to
protect human health in the short-term, and implement it if so.'' As a
result, EPA has insured proper implementation of the well permitting
restriction IC and has determined that the restrictive covenant IC was
not needed because the groundwater clean-up standard had been attained.
Community Involvement
Public participation activities have been satisfied as required in
CERCLA Section 113(k), 42 U.S.C. 9613(k), and CERCLA section 117, 42
U.S.C. 9617. Community involvement activities were conducted at the
site, as required, during major steps of the CERCLA
[[Page 44459]]
process, including the 1991 Record of Decision, 2007 Record of Decision
Amendment, and the 2000, 2005 and 2010 Five Year Reviews. Such
community involvement activities included making site documents
available to the public, publishing public notices in local newspapers,
and providing public comment opportunities.
EPA's community involvement activities associated with this
deletion will consist of placing the deletion docket in the local site
information repository and placing a public notice (of EPA's intent to
delete the site from the NPL) in a local newspaper of general
circulation.
Determination That the Site Meets the Criteria for Deletion in the NCP
The implemented remedy achieves the degree of cleanup specified in
the ROD and ROD Amendment for all pathways of exposure. All selected
remedial action objectives and clean-up goals are consistent with
agency policy and guidance. No further Superfund responses are needed
to protect human health and the environment at the Site.
The NCP (40 CFR 300.425(e)) states that a site may be deleted from
the NPL when no further response action is appropriate. EPA, in
consultation with the State of California, has determined that all
required response actions have been implemented, and no further
response action by the responsible parties is appropriate.
V. Deletion Action
The EPA, with concurrence of the State of California through the
California Regional Water Quality Control Board--San Francisco Bay
Region, has determined that all appropriate response actions under
CERCLA have been completed. Therefore, EPA is deleting the Site from
the NPL.
Because EPA considers this action to be noncontroversial and
routine, EPA is taking it without prior publication. This action will
be effective September 23, 2013 unless EPA receives adverse comments by
August 23, 2013. If adverse comments are received within the 30-day
public comment period, EPA will publish a timely withdrawal of this
direct final notice of deletion before the effective date of the
deletion, and it will not take effect. EPA will prepare a response to
comments and continue with the deletion process on the basis of the
notice of intent to delete and the comments already received. There
will be no additional opportunity to comment.
List of Subjects in 40 CFR Part 300
Environmental protection, Air pollution control, Chemicals,
Hazardous waste, Hazardous substances, Intergovernmental relations,
Penalties, Reporting and recordkeeping requirements, Superfund, Water
pollution control, Water supply.
Dated: July 15, 2013.
Jane Diamond,
Director, Water Division, U.S. EPA Region 9.
For the reasons set out in this document, 40 CFR part 300 is
amended as follows:
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.
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2. Table 1 of Appendix B to part 300 is amended by removing the entry
``Sola Optical U.S.A., Inc.'', ``Petaluma''.
[FR Doc. 2013-17828 Filed 7-23-13; 8:45 am]
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