In the Matter of Entergy Nuclear Vermont Yankee, LLC and Entergy Nuclear Operations, Inc.; Vermont Yankee Nuclear Power Station; Director's Decision, 14997-15001 [2011-6401]
Download as PDF
Federal Register / Vol. 76, No. 53 / Friday, March 18, 2011 / Notices
Dated: March 15, 2011.
Susanne E. Bolton,
Committee Management Officer.
[FR Doc. 2011–6397 Filed 3–17–11; 8:45 am]
BILLING CODE 7555–01–P
NUCLEAR REGULATORY
COMMISSION
[NRC–2011–0060; Docket No. 50–271;
License No. DPR–28]
Emcdonald on DSK2BSOYB1PROD with NOTICES
In the Matter of Entergy Nuclear
Vermont Yankee, LLC and Entergy
Nuclear Operations, Inc.; Vermont
Yankee Nuclear Power Station;
Director’s Decision
I. Introduction
By letters dated January 12, 2010,
from Mr. Michael Mulligan, February 8,
2010, from Mr. Raymond Shadis, and
February 20, 2010, from Mr. Thomas
Saporito, these individuals (collectively
‘‘Petitioners’’) filed separate petitions
pursuant to Title 10 of the Code of
Federal Regulations (10 CFR), Section
2.206, requesting the Nuclear Regulatory
Commission (NRC or the Commission)
take actions with regard to the Vermont
Yankee Nuclear Power Station (VY).
Mr. Mulligan requested in his petition
that: (1) The radioactive leak into the
environment of VY be immediately
stopped, VY be immediately shut down,
and all leaking paths be isolated; and (2)
VY disclose its preliminary ‘‘root cause
analysis,’’ and the NRC release its
preliminary investigative report on that
analysis before plant startup.
Mr. Shadis on behalf of New England
Coalition (NEC) requested in his
petition that the NRC: (1) Require VY to
go into cold shutdown and depressurize
all systems in order to slow or stop the
leak; (2) act promptly to stop or mitigate
the leak(s); (3) require VY to reestablish
its licensing basis by physically tracing
records and reporting physical details of
all plant systems that would be within
scope as ‘‘Buried Pipes and Tanks,’’ in
NUREG–1801, ‘‘Generic Aging Lessons
Learned (GALL) Report,’’ and under the
requirements of 10 CFR 50.54,
‘‘Conditions of licenses’’; (4) investigate
and determine why Entergy has been
allowed to operate VY since 2002
without a working knowledge of all
plant systems and why the NRC’s
Reactor Oversight Process (ROP) and
review process for license renewal
amendment did not detect this
dereliction; (5) take notice of VY’s many
maintenance and management failures
(from 2000–2010) and the ROP’s failure
to detect them early and undertake a full
diagnostic evaluation team inspection
using NRC Inspection Procedure 95003,
VerDate Mar<15>2010
18:30 Mar 17, 2011
Jkt 223001
‘‘Supplemental Inspection for Repetitive
Degraded Cornerstones, Multiple
Degraded Cornerstones, Multiple
Yellow Inputs or One Red Input’’; and
(6) require VY to apply for an
amendment to its license renewal
application that would address both
aging analysis and aging management of
all buried piping carrying or with the
potential to carry radionuclides and/or
the potential to interact with any safety
or safety-related system.
Mr. Saporito requested in his petition
that the NRC: (1) Order a cold shutdown
mode of operation for VY because of
leaking radioactive tritium; and (2) issue
a confirmatory order modifying the
NRC-issued license for VY so that the
licensee must bring the nuclear reactor
to a cold shutdown mode of operation
until the licensee can provide definitive
reasonable assurance to the NRC, under
affirmation, that the reactor will be
operated in full compliance with the
regulations in 10 CFR Part 50, ‘‘Domestic
Licensing of Production and Utilization
Facilities,’’ and Appendix A, ‘‘General
Design Criteria for Nuclear Power
Plants,’’ to 10 CFR Part 50, Criterion 60,
‘‘Control of Releases of Radioactive
Materials to the Environment,’’ and
Criterion 64, ‘‘Monitoring Radioactivity
Releases,’’ and other NRC regulations
and authority.
Mr. Shadis stated during a public
teleconference with the PRB on March
3, 2010, that the tritium leak is just one
example of many maintenance and
management failures at VY. All three
petitioners raised a concern regarding
what they perceive as the NRC’s failure
to examine the deficiencies at VY in an
integrated manner. This concern has
met the criteria for review in accordance
with NRC’s Management Directive (MD)
8.11 ‘‘Review Process for 10 CFR 2.206
Petitions.’’
In an acknowledgment letter dated
June 25, 2010, the petitioners were
informed of the PRB’s decision to deny
the request for an immediate cold
shutdown of VY because the PRB did
not identify any urgent safety concerns.
The NRC also informed the petitioners
that their petitions were consolidated
per the guidance in MD 8.11. The
consolidated petition was accepted for
review for the following specific issues
and concerns stated by the petitioners in
the petitions and/or supplemented
during the teleconferences:
(1) Increasing concentrations of
radiocontaminants in the soil and
groundwater at VY, as well as an
increasing area of contamination, are
manifest on a daily basis. VY risks
aggravating the contamination by
continuing to run the reactor at full
power while attempting over a period of
PO 00000
Frm 00104
Fmt 4703
Sfmt 4703
14997
a month to triangulate the location of a
presumed leak by drilling a series of test
wells in the affected area.
(2) During the license renewal
application proceeding, the licensee
averred that it was unaware of the
existence of some buried pipes, now
uncovered, and it has yet to discover
their path and purpose.
(3) Entergy has, in 8 years of
ownership, failed to learn and
understand VY’s design, layout, and
construction. This failure to
comprehend and understand the layout,
function, and potentially the interaction
of the plant’s own piping systems
constitutes a loss of design basis.
(4) The NRC’s ROP has apparently
failed to capture, anticipate, and prevent
ongoing maintenance, engineering,
quality assurance, and operation issues
that have manifested themselves in a
series of high-profile incidents since
Entergy took over VY. The agency has
repeatedly failed to detect root cause
trends until they have, as in this
instance, become grossly self-revealing.
(5) The NRC should ensure that
Entergy has adequate decommissioning
funds. The tritium leak will increase
decommissioning costs because of the
need for site radiological examination
and soil remediation.
Copies of the petitions are available
for inspection at the Commission’s
Public Document Room (PDR) at One
White Flint North, Room O1–F21, 11555
Rockville Pike (first floor), Rockville,
Maryland 20852, and from the NRC’s
Agencywide Documents Access and
Management System (ADAMS) Public
Electronic Reading Room on the NRC
Web site at https://www.nrc.gov/readingrm/adams.html under ADAMS
Accession Nos. ML100190688,
ML100470430, and ML100621374. Refer
to NRC’s Management Directive 8.11,
‘‘Review Process for 10 CFR 2.206
Petitions,’’ (ADAMS Accession No.
ML041770328), for a description of the
petition review process. Persons who do
not have access to ADAMS or who have
problems in accessing the documents in
ADAMS should contact the NRC PDR
reference staff by telephone at 1–800–
397–4209 or 301–415–4737, or by e-mail
to pdr.resource@nrc.gov.
II. Discussion
On January 7, 2010, Entergy reported
to the NRC that water samples taken
from groundwater monitoring well GZ–
3 onsite at VY showed tritium levels
above background. GZ–3 is about 70 feet
from the Connecticut River. Tritium is
another name for the radioactive
nuclide hydrogen-3. Tritium occurs
naturally in the environment because of
cosmic ray interactions. It is also
E:\FR\FM\18MRN1.SGM
18MRN1
Emcdonald on DSK2BSOYB1PROD with NOTICES
14998
Federal Register / Vol. 76, No. 53 / Friday, March 18, 2011 / Notices
produced by nuclear reactor operations,
and can be legally discharged as a
radioactive effluent under NRC
regulations. Tritium is chemically
identical to normal hydrogen (hydrogen1), and, like normal hydrogen, tends to
combine with oxygen to form water,
which is referred to as tritiated water.
The detection of tritiated water in the
monitoring well indicated abnormal
leakage from the nuclear plant. The
Environmental Protection Agency’s
(EPA’s) regulatory standard for tritium
in drinking water is 20,000 picocuries
per liter (pCi/L). Tritium was initially
measured at levels up to about 17,000
pCi/L in monitoring well GZ–3, which
is not used for drinking water. Samples
at other monitoring wells have also
shown some tritium. The highest
reading from any monitoring well has
been about 2.5 million pCi/L, from
monitoring well GZ–10. Entergy
immediately started an investigation to
identify the source of the tritium, and
later installed additional monitoring
wells to help locate the source.
Upon notification on January 7, 2010,
of the detection of tritium in the
monitoring well, the NRC’s staff
initiated actions to review and assess
the condition, by reviewing all available
sampling data, hydrologic information,
and analyses; conducting an onsite
inspection and assessment of Entergy’s
plans and process for investigating the
condition; and making an independent
determination of public health and
safety consequence based on available
information. NRC inspectors provided
close regulatory oversight of Entergy’s
investigation in order to independently
assure conformance with applicable
NRC regulatory requirements, assess
licensee performance, and evaluate the
condition with respect to NRC’s
radiological release limits.
On February 27, 2010, following
excavation and leak testing of the
Advanced Off Gas (AOG) system pipe
tunnel, Entergy reported that it had
identified leakage into the surrounding
soil, and therefore to the groundwater,
from an unsealed joint in the concrete
tunnel wall. The AOG pipe tunnel is
located about 15 feet underground.
Also, piping inside the tunnel had
previously been found to be leaking,
and the drain inside the tunnel had
been found to be clogged. Soil samples
in the vicinity showed traces of
radioactive isotopes. Entergy reported
that the leakage to the environment had
been stopped by isolating piping and
containing the water leaking from the
AOG pipe tunnel. However, on May 28,
2010, Entergy reported a second leak
from AOG piping into the soil. Entergy
quickly isolated this leak and has sealed
VerDate Mar<15>2010
18:30 Mar 17, 2011
Jkt 223001
off that piping to prevent further leaks
in that area. The contaminated soil was
removed from the excavated area and is
being stored in containers onsite for
eventual disposal in accordance with
NRC regulatory requirements.
As part of its oversight effort, NRC
staff conducted an evaluation in
accordance with NRC Manual Chapter
0309, ‘‘Reactive Inspection Decision
Basis for Reactors,’’ from January 25 to
April 10, 2010, to determine if the
occurrence with the AOG piping
constituted a significant operational
event (i.e., a radiological, safeguards, or
other safety-related operational
condition) that posed an actual or
potential hazard to public health and
safety, property, or the environment.
The evaluation reviewed the condition
against the specified deterministic
criteria that are based on regulatory
safety limits, and determined that none
of the criteria were met.
Notwithstanding that determination, the
NRC staff continued its review,
oversight, and assessment of the
condition, including an independent
evaluation of any potential public
health and safety consequences. The
staff’s activities included:
1. Several onsite inspections and
reviews to assess radiological and
hydrological data to establish reasonable
assurance that members of the public
were not, nor were they expected to be,
exposed to radiation in excess of the
dose limits for individual members of
the public specified in 10 CFR 20.1301,
(i.e., 100 millirem in a year) or the As
Low As Is Reasonably Achievable
(ALARA) dose objectives specified in 10
CFR Part 50, Appendix I.
2. Engagement of hydrological
scientists from NRC’s Office of Nuclear
Reactor Regulation, Office of Regulatory
Research, and the U.S. Geological
Survey to independently assess the
licensee’s hydrological and geological
data and conclusions on groundwater
flow characteristics of the area.
3. Inspection in accordance with NRC
Temporary Instruction TI–2515/173,
‘‘Review of the Implementation of the
Industry Ground Water Protection
Voluntary Initiative,’’ to determine the
licensee’s implementation of the
specifications in the industry’s
groundwater initiative document NEI–
07–07, ‘‘Industry Ground Water
Protection Initiative—Final Guidance
Document,’’ (ADAMS Accession No.
ML072610036).
4. Confirmation of the basis,
calculational methodology, and results
obtained by the licensee to estimate a
contaminated groundwater effluent
release and off-site dose consequence to
members of the public.
PO 00000
Frm 00105
Fmt 4703
Sfmt 4703
5. Analysis of selected ground water
and environmental samples to aid in
determining the adequacy of the
licensee’s analytical methods.
6. Approval for additional NRC
inspection resources above the baseline
inspection program to fully evaluate and
provide continuing regulatory oversight
of the licensee’s investigation and
remediation activities.
7. Documentation of the inspection
scope and conclusions in publicly
available NRC Inspection Reports.
As a result of these activities, the NRC
established reasonable assurance, in a
timely manner, that this groundwater
condition would not result in any dose
consequence that would jeopardize
public health and safety. To date,
information and data continue to
support that the dose consequence
attributable to the groundwater
condition at VY remains well below the
‘‘As Low As Reasonably Achievable’’
(ALARA) dose objectives specified in 10
CFR Part 50, Appendix I; and that the
NRC regulatory criteria of 10 CFR
20.1301, ‘‘Dose limits for individual
members of the public,’’ was never
approached.
In addition, representatives from the
State of Vermont observed NRC
inspection activities and conducted
independent analyses of collected
groundwater samples.
As discussed in Section I, the specific
concerns raised by the petitioners which
are used as the basis for their requests
are discussed in the following
paragraphs.
A. NRC Response to the Consolidated
Petition
1. Concern 1—Increasing
Concentrations of Radiocontaminants in
the Soil and Groundwater at VY
In order to address/remove the onsite
contamination, Entergy installed an
extraction well (GZ–EW1) on March 23,
2010. On April 7, 2010, Entergy placed
into service a second extraction well
(GZ–EW1A), with a higher flow
capacity. As the plume progressed
toward the Connecticut River, the
extraction wells were sited accordingly,
with GZ–15 being utilized for
groundwater extraction at various times
starting on July 28, 2010, followed by
installation of extraction well EW–2
which began operation along with GZ–
14 on September 13, 2010. As of
December 21, 2010, Entergy has
pumped approximately 307,000 gallons
of groundwater out of these wells in
order to reduce the amount of tritiated
water in the groundwater. About 9,000
gallons of the extracted water was
recycled to the facility, and about
E:\FR\FM\18MRN1.SGM
18MRN1
Emcdonald on DSK2BSOYB1PROD with NOTICES
Federal Register / Vol. 76, No. 53 / Friday, March 18, 2011 / Notices
298,000 gallons of the extracted water
has been shipped off-site for processing.
Data indicates that the remaining
residual plume of tritiated groundwater
is currently migrating from the source of
the leak to the Connecticut River, which
is the direction of flow for the
groundwater in this location.
Notwithstanding the hydrology, no
detectable tritium has been found in the
Connecticut River. The NRC’s
inspections to date confirm that no
Federal regulatory limits have been
exceeded, and public health and safety
remain unaffected.
The soil in the vicinity of the leak was
contaminated with small amounts of
radioactive particulates associated with
nuclear plant operations, including
manganese-54, cobalt-60, zinc-65,
strontium-90, and cesium-137.
Sampling indicated very little migration
in the immediate area, which is typical
for these radionuclides. Entergy has
removed about 150 cubic feet of
contaminated soil and packaged it for
eventual disposal in accordance with
NRC regulatory requirements. Although
some minor amounts of contaminated
soil may remain, NRC inspections
indicate that this soil poses no threat to
public health and safety. Areas of
remaining minor contamination are
expected to be evaluated, and as
appropriate, remediated during plant
decommissioning. The NRC’s
experience with decommissioned
nuclear plants such as Maine Yankee,
Haddam Neck, and Yankee Rowe
indicates that these areas can be
successfully remediated during
decommissioning. The NRC’s
inspections indicate that no Federal
regulatory limits have been exceeded,
and there are no health or safety
concerns for members of the public or
plant workers. The initial NRC
inspection covered the period of January
25 through April 14, 2010. Inspection
results were initially discussed in an
NRC inspection report with preliminary
results, dated April 16, 2010 (ADAMS
Accession No. ML101060419). The NRC
issued its completed report on May 20,
2010 (ADAMS Accession No.
ML101400040), and continued to
inspect the licensee’s actions in these
areas. The follow-up NRC Inspection
Report 05000271/2010010 was issued
on January 7, 2011, ADAMS Accession
No. ML110070085.
As part of its corrective action
program, Entergy performed a root cause
analysis (RCA) of the leakage event. The
NRC assessed the comprehensiveness of
this analysis and documented this
review in NRC Inspection Report
05000271/2010009 dated October 13,
2010 (ADAMS Accession No.
VerDate Mar<15>2010
18:30 Mar 17, 2011
Jkt 223001
ML102860037). The NRC concluded
that Entergy’s root and apparent cause
evaluations for the tritium ground water
leakage events were appropriate and no
violation of NRC requirements was
identified.
As discussed, Entergy has identified
the source of the leak and stopped it,
and has reduced the onsite
contamination by pumping out
contaminated groundwater and
removing about 150 cubic feet of
contaminated soil. The NRC’s
inspections confirm that no Federal
regulatory limits have been exceeded,
and the public health and safety
remains unaffected. Thus, no
enforcement action is warranted for this
concern.
2. Concern 2—VY Was Unaware of the
Existence of Some Buried Pipes During
License Renewal Application
Proceeding
On February 24, 2010, Entergy
informed the NRC that some employees
at VY had been removed from their site
positions and placed on administrative
leave. Entergy took these actions as a
result of Entergy’s independent internal
investigation into alleged contradictory
or misleading information provided to
the State of Vermont that was not
corrected. On May 27, 2010, an NRC
audit team completed an onsite audit to
independently verify that information
provided by Entergy material to the
renewal of the VY operating license was
complete and accurate. The NRC staff
reviewed the VY yard piping drawings
to independently identify buried and
underground piping located onsite. The
NRC staff performed walk-downs of
yard areas and conducted interviews
with the buried piping program
engineer. The NRC staff also reviewed
the results of system walk-downs
previously performed by NRC
inspectors during the performance of
NRC Inspection Procedure (IP) 71002,
‘‘License Renewal Inspection,’’ as
documented in NRC Inspection Report
05000271/2007006, dated June 4, 2007
(ADAMS Accession No. ML071550330).
Additionally, the NRC staff had the
opportunity to observe exposed portions
of buried piping that had been
previously excavated by Entergy in
conjunction with actions taken to
investigate the cause of a leak from an
underground portion of piping in the
AOG system. The NRC staff compared
the results of this review to a list of
buried and underground piping Entergy
had provided in preparation of the
audit. The NRC staff did not find any
discrepancies between Entergy’s current
accounting of buried and underground
safety-related piping and the description
PO 00000
Frm 00106
Fmt 4703
Sfmt 4703
14999
contained in the license renewal
application, and so concluded that all
information provided to the NRC in the
license renewal application was
complete and accurate in accordance
with 10 CFR 50.9. Note that non-safety
underground piping is excluded from
the license renewal process. The
complete audit report dated September
3, 2010, may be found under ADAMS
Accession No. ML102070412. Because
the NRC staff did not identify a
violation of NRC requirements, no
enforcement action is warranted for this
concern.
3. Concern 3—Entergy’s Failure To
Comprehend and Understand the
Layout, Function, and Potentially the
Interaction of the Plant’s Own Piping
Systems Constitutes a Loss of Design
Basis
The design basis for VY is the
information that ‘‘identifies the specific
functions to be performed by a
structure, system or component of a
facility, and the specific values or
ranges of values chosen for controlling
parameters as reference bounds for
design.’’ The design basis is submitted to
the NRC and is approved by the NRC by
issuance of the facility operating
license. Any changes to the facility as
described in the final safety analysis
report (FSAR) must be either submitted
to the NRC for approval through a
license amendment, or changed in
accordance with the provisions of 10
CFR 50.59. Licensees are required under
10 CFR 50.71(e) to update the FSAR,
which was originally submitted as part
of the application for the license, to
assure that the information included in
the FSAR contains the latest
information developed. These
submittals contain all the changes
necessary to reflect information and
analyses submitted to the Commission
since the last update to the FSAR. The
submittal includes the effects of all
changes made in the facility or
procedures as described in the FSAR
and all safety analyses and evaluations
performed by the licensee in support of
approved license amendments or in
support of conclusions that the plant
design change did not require a license
amendment.
As discussed in previous Section A.2,
an NRC audit team compared the
information Entergy provided in the
license renewal application to the VY
Technical Specifications and the FSAR.
The NRC staff determined that the
information in the FSAR would meet
the requirements of 10 CFR 50.71(e)
regarding maintenance of design basis
information, consistent with the
definition of ‘‘design bases’’ in 10 CFR
E:\FR\FM\18MRN1.SGM
18MRN1
15000
Federal Register / Vol. 76, No. 53 / Friday, March 18, 2011 / Notices
Emcdonald on DSK2BSOYB1PROD with NOTICES
50.2, and reflects current plant design.
Both safety and non-safety underground
yard piping are depicted on drawings in
the VY’s controlled drawings system.
The staff concluded that the information
reviewed was accurate and complete
and the NRC staff did not identify any
loss of the design basis. Because no
violations of NRC requirements were
identified, enforcement action is not
warranted for this concern.
4. Concern 4—The NRC’s ROP Failure
To Detect Root Cause Trends of a Series
of High-Profile Incidents
While a failure of the NRC’s ROP is
not something for which the NRC could
take enforcement action against VY, the
NRC staff is responding to the
petitioners’ concern. Objectives of the
ROP include: (1) Improving the
objectivity of reactor oversight so that
subjective decisions and judgment are
not central process features; (2)
improving the scrutability of reactor
oversight so that NRC actions have a
clear tie to licensee performance; and (3)
risk-informing reactor oversight so that
NRC and licensee resources are focused
on those aspects of performance having
the greatest impact on safe plant
operation.
The ROP evaluates plant performance
using objective, risk-informed
thresholds, which include the safety
significance of inspection findings and
performance indicators (PIs). Objective
performance thresholds are intended to
help determine the level of regulatory
engagement appropriate to licensee
performance in each cornerstone area.
The thresholds were established so that
sufficient margin existed between
nominal performance bands to allow for
licensee initiatives to correct
performance problems before they
warrant escalated regulatory
involvement. Sufficient margin exists to
allow for both NRC and licensee
corrective actions to be taken in
response to declining performance
before plant operation becomes unsafe.
Under the ROP, performance
deficiencies that have no impact on
safety are considered minor and are
entered into a licensee’s corrective
action program for appropriate
attention, but they do not result in any
specific action by the NRC. However,
the NRC reviews the licensee’s
corrective action program on a routine
basis while performing the baseline
inspection program, and the staff
performs more in-depth reviews on a
periodic basis while performing the
inspection procedure, ‘‘Problem
Identification and Resolution.’’
In addition to continuous inspection
and assessment of VY performance,
VerDate Mar<15>2010
18:30 Mar 17, 2011
Jkt 223001
annual and mid-cycle assessments of
VY performance are conducted. Annual
and mid-cycle assessments involve
review of the safety significance and
common factors associated with
inspection findings, and review of
licensee objective performance
indicators. The results associated with
the last several reviews indicate that VY
is being operated in a manner which
preserves public health and safety. The
high profile events referenced by the
petitioners were inspected by a
combination of specialist inspectors
from both the NRC regional office and
NRC headquarters, and by the onsite
resident inspector staff. These events
were determined to either not involve
systems important to plant safety, or
involved performance deficiencies of
very low safety significance. In June
2009, the NRC conducted a Problem
Identification and Resolution inspection
at VY. The results of this inspection
indicated that VY was generally
effective in the implementation of its
corrective action program; additionally,
the safety culture of station employees,
including station management,
indicated that personnel had a
willingness to identify, evaluate, and
resolve plant deficiencies. The current
and past performance information,
including the Mid-Cycle and Annual
Assessment Letters and inspection
reports issued to VY and other
licensees, are publically available and
presented on the NRC’s public Web site.
The ROP Action Matrix is used to
determine the level of regulatory
oversight warranted for varying levels of
performance. VY is in Column 1
(Licensee Response Column) of the ROP
Action Matrix because all inspection
findings and PIs at this site have very
low (i.e., green) safety significance. In
accordance with Inspection Manual
Chapter (IMC) 0305, ‘‘Operating Reactor
Assessment Program,’’ plants in Column
1 meet all cornerstone objectives and
receive the NRC’s baseline inspection
program.
The deviation process described in
IMC 0305 is used to address unique
situations where the oversight defined
by the ROP Action Matrix column might
not be appropriate or sufficient. Even
though performance at VY had not
crossed any thresholds warranting
additional regulatory oversight, the staff
considered it appropriate to apply
additional resources to monitor the
licensee’s efforts to address the onsite
groundwater contamination and to
follow up on the licensee’s response to
the NRC’s Demand for Information
dated March 1, 2010 (ADAMS
Accession No. ML100570237). The staff
requested and received authorization
PO 00000
Frm 00107
Fmt 4703
Sfmt 4703
from the NRC’s Executive Director for
Operations (EDO) on April 5, 2010
(ADAMS Accession No. ML100960321),
to deviate from the ROP Action Matrix
to apply additional resources in these
areas of licensee performance.
Although tritium has been found in
onsite monitoring wells, the staff has
not identified a hazard to public health
and safety, and the staff expects any offsite radiological releases to be very
small (i.e., off-site doses, if any, would
be negligible with respect to those
received from normal background
radiation levels). Nevertheless, as noted
in the Action Matrix deviation
memorandum, increased NRC oversight
of the characterization, mitigation, and
remediation of the tritium
contamination was warranted given the
extraordinary level of interest and
concern by stakeholders. Although there
is not currently, nor is there likely to be,
a public health and safety issue, the
NRC is conducting additional
independent inspections and
assessments of the licensee’s activities,
and has increased external stakeholder
communications and outreach, to
respond to stakeholder concerns and
maintain public confidence.
The NRC staff considers the ROP
adequate for ensuring public health and
safety and notes that the groundwater
contamination at VY does not pose a
public health or safety hazard.
The staff further notes that it has
exercised its authority to deviate from
the ROP Action Matrix to be responsive
to unique circumstances and
stakeholder concerns. The NRC staff
conducts annual ROP self-assessments,
which include evaluations of deviations
from the Action matrix to see if
improvements are warranted in the
ROP. The results of the calendar year
2010 self-assessment will be included in
the annual Commission paper and
metric report, which will be issued in
early April of 2011 and discussed
during the Agency Action Review
Meeting (AARM): a meeting of senior
NRC managers to confirm the results
and effectiveness of the ROP. The
results of the AARM will be presented
to the Commission in a public meeting
in May 2011.
5. Concern 5—VY’s Decommissioning
Fund Is Inadequate Due to the Increase
in Decommissioning Costs
NRC establishes requirements for
licensees to provide reasonable
assurance that funds will be available
for the decommissioning process.
Reasonable assurance consists of a
series of steps outlined in 10 CFR 50.75,
‘‘Reporting and record keeping for
decommissioning planning.’’ VY must
E:\FR\FM\18MRN1.SGM
18MRN1
Federal Register / Vol. 76, No. 53 / Friday, March 18, 2011 / Notices
Emcdonald on DSK2BSOYB1PROD with NOTICES
file an annual report to the NRC
containing a certification that financial
assurance for decommissioning will be
or has been provided in an amount
which may be more, but not less than,
the amount stated in the regulations,
adjusted as appropriate for changes in
labor, energy, and waste burial costs.
The formula for adequate
decommissioning funds includes an
estimated waste disposal volume based
on the plant design. The actual waste
disposal volume may increase due to a
leak or spill at a level that requires
remediation. The licensee is responsible
for payment of any increased waste
disposal costs, whether paid for out of
the allocated funds from the
decommissioning fund or other assets.
The current remediation of the tritium
in soil and groundwater at VY has been
funded as an operating expense and no
money was used from the
decommissioning trust fund. VY
previously submitted a site-specific
decommissioning cost analysis, which
was approved by the NRC by letter
dated February 3, 2009 (ADAMS
Accession No. ML083390193). VY must
address any required changes in their
next annual report. Because no
violations of NRC requirements were
identified, enforcement action is not
warranted for this concern.
B. Additional NRC Actions Pertaining to
Groundwater Contamination
In March of 2010, NRC’s EDO
established a Groundwater Task Force
(GTF) to review the NRCs approach to
ground water contamination conditions,
given the recent incidents of leaking
buried pipes at commercial nuclear
power plants. The charter of the Task
Force was to reevaluate the
recommendations made in the Liquid
Radioactive Release Lessons Learned
Task Force Final Report dated
September 1, 2006 (ADAMS Accession
No. ML062650312); review the actions
taken in Commission Paper SECY–09–
0174 ‘‘Staff Progress in Evaluation of
Buried Piping at Nuclear Reactor
Facilities’’ (ADAMS Accession No.
ML093160004); and review the actions
taken in response to recent releases of
tritium into groundwater by nuclear
facilities.
The GTF completed its work in June
2010 and provided its report to the EDO.
The report characterized a variety of
issues ranging from policy issues to
communications improvement
opportunities. The complete report may
be found under ADAMS Accession No.
ML101740509. The GTF determined
that the NRC is accomplishing its stated
mission of protecting public health,
safety, and protection of the
VerDate Mar<15>2010
18:30 Mar 17, 2011
Jkt 223001
environment through its response to
groundwater leaks/spills. Within the
current regulatory structure, the NRC is
correctly applying requirements and
properly characterizing the relevant
issues. However, the GTF reported that
there are further observations,
conclusions, and recommendations that
the NRC should consider in its oversight
of groundwater contamination
incidents.
The EDO appointed a group of NRC
senior executives to review the report
and consider its findings. The group
reviewed the GTF final report, including
the conclusions, recommendations, and
their bases. They identified conclusions
and recommendations that do not
involve policy issues, and tasked the
NRC staff to address them. They have
also identified policy issues, and a
policy paper has been sent to the
Commission discussing those issues.
A public workshop was held on
October 4, 2010, with external
stakeholders to discuss the findings of
the GTF Report and to receive input on
the potential policy issues. In addition,
a request for public comment was
published in the Federal Register (75
FR 57987). These efforts help to ensure
the NRC is considering the right issues
on which to focus its attention as it
moves forward. The transcript from this
meeting is available on the NRC’s Web
site at: https://www.nrc.gov/reading-rm/
doc-collections/fact-sheets/buriedpipes-tritium.html.
III. Conclusion
As summarized above, the NRC staff
did not identify any violations and the
public health and safety remains
reasonably assured. Thus, no
enforcement action against VY is
warranted. The NRC staff concludes that
the petitioners’ concerns have been
addressed and resolved such that no
further action is needed in response to
the petitions.
As provided in 10 CFR 2.206(c), a
copy of this Director’s Decision will be
filed with the Secretary of the
Commission for the Commission to
review. As provided for by this
regulation, the Decision will constitute
the final action of the Commission 25
days after the date of the Decision
unless the Commission, on its own
motion, institutes a review of the
Decision within that time.
Dated at Rockville, Maryland, this 11th day
of March 2011.
PO 00000
Frm 00108
Fmt 4703
Sfmt 4703
15001
For the Nuclear Regulatory Commission.
Eric J. Leeds,
Director, Office of Nuclear Reactor
Regulation.
[FR Doc. 2011–6401 Filed 3–17–11; 8:45 am]
BILLING CODE 7590–01–P
NUCLEAR REGULATORY
COMMISSION
[Docket No. 50–271; NRC–2011–0060]
Entergy Nuclear Operations, Inc,.
Entergy Nuclear Vermont Yankee, LLC,
Vermont Yankee Nuclear Power
Station; License No. DPR–28, Receipt
of Request for Action
Notice is hereby given that petitions
dated January 12, 2010, from Mr.
Michael Mulligan, February 8, 2010,
from Mr. Raymond Shadis, and
February 20, 2010, from Mr. Thomas
Saporito, have requested that, under
Title 10 of the Code of Federal
Regulations (10 CFR) 2.206, ‘‘Requests
for Action under this Subpart,’’ the U.S.
Nuclear Regulatory Commission (NRC)
take action with regard to the Vermont
Yankee Nuclear Power Station (VY).
Mr. Mulligan requested in his petition
that (1) the radioactive leak into the
environment of VY be immediately
stopped, VY be immediately shut down,
and all leaking paths be isolated, and (2)
VY disclose its preliminary root cause
analysis and the NRC release its
preliminary investigative report on this
analysis before plant startup.
Mr. Shadis requested in his petition
that the NRC (1) require VY to go into
cold shutdown and depressurize all
systems in order to slow or stop the
leak, (2) act promptly to stop or mitigate
the leak(s) and not wait until all issues
raised by New England Coalition are
resolved, (3) require VY to reestablish
its licensing basis by physically tracing
records and reporting physical details of
all plant systems that would be within
scope as ‘‘buried pipes and tanks’’ in
NUREG–1801, ‘‘Generic Aging Lessons
Learned (GALL) Report,’’ and under the
requirements of 10 CFR 50.54,
‘‘Conditions of Licenses,’’ (4) investigate
and determine why Entergy has been
allowed to operate VY since 2002
without a working knowledge of all
plant systems, and why the NRC’s
Reactor Oversight Process (ROP) and
review process for license renewal
amendment did not detect this
dereliction, (5) take notice of Entergy
Nuclear Vermont Yankee’s many
maintenance and management failures
(from 2000 to 2010) and the ROP’s
failure to detect them early and
undertake a full diagnostic evaluation
team inspection or NRC Inspection
E:\FR\FM\18MRN1.SGM
18MRN1
Agencies
[Federal Register Volume 76, Number 53 (Friday, March 18, 2011)]
[Notices]
[Pages 14997-15001]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-6401]
=======================================================================
-----------------------------------------------------------------------
NUCLEAR REGULATORY COMMISSION
[NRC-2011-0060; Docket No. 50-271; License No. DPR-28]
In the Matter of Entergy Nuclear Vermont Yankee, LLC and Entergy
Nuclear Operations, Inc.; Vermont Yankee Nuclear Power Station;
Director's Decision
I. Introduction
By letters dated January 12, 2010, from Mr. Michael Mulligan,
February 8, 2010, from Mr. Raymond Shadis, and February 20, 2010, from
Mr. Thomas Saporito, these individuals (collectively ``Petitioners'')
filed separate petitions pursuant to Title 10 of the Code of Federal
Regulations (10 CFR), Section 2.206, requesting the Nuclear Regulatory
Commission (NRC or the Commission) take actions with regard to the
Vermont Yankee Nuclear Power Station (VY).
Mr. Mulligan requested in his petition that: (1) The radioactive
leak into the environment of VY be immediately stopped, VY be
immediately shut down, and all leaking paths be isolated; and (2) VY
disclose its preliminary ``root cause analysis,'' and the NRC release
its preliminary investigative report on that analysis before plant
startup.
Mr. Shadis on behalf of New England Coalition (NEC) requested in
his petition that the NRC: (1) Require VY to go into cold shutdown and
depressurize all systems in order to slow or stop the leak; (2) act
promptly to stop or mitigate the leak(s); (3) require VY to reestablish
its licensing basis by physically tracing records and reporting
physical details of all plant systems that would be within scope as
``Buried Pipes and Tanks,'' in NUREG-1801, ``Generic Aging Lessons
Learned (GALL) Report,'' and under the requirements of 10 CFR 50.54,
``Conditions of licenses''; (4) investigate and determine why Entergy
has been allowed to operate VY since 2002 without a working knowledge
of all plant systems and why the NRC's Reactor Oversight Process (ROP)
and review process for license renewal amendment did not detect this
dereliction; (5) take notice of VY's many maintenance and management
failures (from 2000-2010) and the ROP's failure to detect them early
and undertake a full diagnostic evaluation team inspection using NRC
Inspection Procedure 95003, ``Supplemental Inspection for Repetitive
Degraded Cornerstones, Multiple Degraded Cornerstones, Multiple Yellow
Inputs or One Red Input''; and (6) require VY to apply for an amendment
to its license renewal application that would address both aging
analysis and aging management of all buried piping carrying or with the
potential to carry radionuclides and/or the potential to interact with
any safety or safety-related system.
Mr. Saporito requested in his petition that the NRC: (1) Order a
cold shutdown mode of operation for VY because of leaking radioactive
tritium; and (2) issue a confirmatory order modifying the NRC-issued
license for VY so that the licensee must bring the nuclear reactor to a
cold shutdown mode of operation until the licensee can provide
definitive reasonable assurance to the NRC, under affirmation, that the
reactor will be operated in full compliance with the regulations in 10
CFR Part 50, ``Domestic Licensing of Production and Utilization
Facilities,'' and Appendix A, ``General Design Criteria for Nuclear
Power Plants,'' to 10 CFR Part 50, Criterion 60, ``Control of Releases
of Radioactive Materials to the Environment,'' and Criterion 64,
``Monitoring Radioactivity Releases,'' and other NRC regulations and
authority.
Mr. Shadis stated during a public teleconference with the PRB on
March 3, 2010, that the tritium leak is just one example of many
maintenance and management failures at VY. All three petitioners raised
a concern regarding what they perceive as the NRC's failure to examine
the deficiencies at VY in an integrated manner. This concern has met
the criteria for review in accordance with NRC's Management Directive
(MD) 8.11 ``Review Process for 10 CFR 2.206 Petitions.''
In an acknowledgment letter dated June 25, 2010, the petitioners
were informed of the PRB's decision to deny the request for an
immediate cold shutdown of VY because the PRB did not identify any
urgent safety concerns. The NRC also informed the petitioners that
their petitions were consolidated per the guidance in MD 8.11. The
consolidated petition was accepted for review for the following
specific issues and concerns stated by the petitioners in the petitions
and/or supplemented during the teleconferences:
(1) Increasing concentrations of radiocontaminants in the soil and
groundwater at VY, as well as an increasing area of contamination, are
manifest on a daily basis. VY risks aggravating the contamination by
continuing to run the reactor at full power while attempting over a
period of a month to triangulate the location of a presumed leak by
drilling a series of test wells in the affected area.
(2) During the license renewal application proceeding, the licensee
averred that it was unaware of the existence of some buried pipes, now
uncovered, and it has yet to discover their path and purpose.
(3) Entergy has, in 8 years of ownership, failed to learn and
understand VY's design, layout, and construction. This failure to
comprehend and understand the layout, function, and potentially the
interaction of the plant's own piping systems constitutes a loss of
design basis.
(4) The NRC's ROP has apparently failed to capture, anticipate, and
prevent ongoing maintenance, engineering, quality assurance, and
operation issues that have manifested themselves in a series of high-
profile incidents since Entergy took over VY. The agency has repeatedly
failed to detect root cause trends until they have, as in this
instance, become grossly self-revealing.
(5) The NRC should ensure that Entergy has adequate decommissioning
funds. The tritium leak will increase decommissioning costs because of
the need for site radiological examination and soil remediation.
Copies of the petitions are available for inspection at the
Commission's Public Document Room (PDR) at One White Flint North, Room
O1-F21, 11555 Rockville Pike (first floor), Rockville, Maryland 20852,
and from the NRC's Agencywide Documents Access and Management System
(ADAMS) Public Electronic Reading Room on the NRC Web site at https://www.nrc.gov/reading-rm/adams.html under ADAMS Accession Nos.
ML100190688, ML100470430, and ML100621374. Refer to NRC's Management
Directive 8.11, ``Review Process for 10 CFR 2.206 Petitions,'' (ADAMS
Accession No. ML041770328), for a description of the petition review
process. Persons who do not have access to ADAMS or who have problems
in accessing the documents in ADAMS should contact the NRC PDR
reference staff by telephone at 1-800-397-4209 or 301-415-4737, or by
e-mail to pdr.resource@nrc.gov.
II. Discussion
On January 7, 2010, Entergy reported to the NRC that water samples
taken from groundwater monitoring well GZ-3 onsite at VY showed tritium
levels above background. GZ-3 is about 70 feet from the Connecticut
River. Tritium is another name for the radioactive nuclide hydrogen-3.
Tritium occurs naturally in the environment because of cosmic ray
interactions. It is also
[[Page 14998]]
produced by nuclear reactor operations, and can be legally discharged
as a radioactive effluent under NRC regulations. Tritium is chemically
identical to normal hydrogen (hydrogen-1), and, like normal hydrogen,
tends to combine with oxygen to form water, which is referred to as
tritiated water. The detection of tritiated water in the monitoring
well indicated abnormal leakage from the nuclear plant. The
Environmental Protection Agency's (EPA's) regulatory standard for
tritium in drinking water is 20,000 picocuries per liter (pCi/L).
Tritium was initially measured at levels up to about 17,000 pCi/L in
monitoring well GZ-3, which is not used for drinking water. Samples at
other monitoring wells have also shown some tritium. The highest
reading from any monitoring well has been about 2.5 million pCi/L, from
monitoring well GZ-10. Entergy immediately started an investigation to
identify the source of the tritium, and later installed additional
monitoring wells to help locate the source.
Upon notification on January 7, 2010, of the detection of tritium
in the monitoring well, the NRC's staff initiated actions to review and
assess the condition, by reviewing all available sampling data,
hydrologic information, and analyses; conducting an onsite inspection
and assessment of Entergy's plans and process for investigating the
condition; and making an independent determination of public health and
safety consequence based on available information. NRC inspectors
provided close regulatory oversight of Entergy's investigation in order
to independently assure conformance with applicable NRC regulatory
requirements, assess licensee performance, and evaluate the condition
with respect to NRC's radiological release limits.
On February 27, 2010, following excavation and leak testing of the
Advanced Off Gas (AOG) system pipe tunnel, Entergy reported that it had
identified leakage into the surrounding soil, and therefore to the
groundwater, from an unsealed joint in the concrete tunnel wall. The
AOG pipe tunnel is located about 15 feet underground. Also, piping
inside the tunnel had previously been found to be leaking, and the
drain inside the tunnel had been found to be clogged. Soil samples in
the vicinity showed traces of radioactive isotopes. Entergy reported
that the leakage to the environment had been stopped by isolating
piping and containing the water leaking from the AOG pipe tunnel.
However, on May 28, 2010, Entergy reported a second leak from AOG
piping into the soil. Entergy quickly isolated this leak and has sealed
off that piping to prevent further leaks in that area. The contaminated
soil was removed from the excavated area and is being stored in
containers onsite for eventual disposal in accordance with NRC
regulatory requirements.
As part of its oversight effort, NRC staff conducted an evaluation
in accordance with NRC Manual Chapter 0309, ``Reactive Inspection
Decision Basis for Reactors,'' from January 25 to April 10, 2010, to
determine if the occurrence with the AOG piping constituted a
significant operational event (i.e., a radiological, safeguards, or
other safety-related operational condition) that posed an actual or
potential hazard to public health and safety, property, or the
environment. The evaluation reviewed the condition against the
specified deterministic criteria that are based on regulatory safety
limits, and determined that none of the criteria were met.
Notwithstanding that determination, the NRC staff continued its review,
oversight, and assessment of the condition, including an independent
evaluation of any potential public health and safety consequences. The
staff's activities included:
1. Several onsite inspections and reviews to assess radiological
and hydrological data to establish reasonable assurance that members of
the public were not, nor were they expected to be, exposed to radiation
in excess of the dose limits for individual members of the public
specified in 10 CFR 20.1301, (i.e., 100 millirem in a year) or the As
Low As Is Reasonably Achievable (ALARA) dose objectives specified in 10
CFR Part 50, Appendix I.
2. Engagement of hydrological scientists from NRC's Office of
Nuclear Reactor Regulation, Office of Regulatory Research, and the U.S.
Geological Survey to independently assess the licensee's hydrological
and geological data and conclusions on groundwater flow characteristics
of the area.
3. Inspection in accordance with NRC Temporary Instruction TI-2515/
173, ``Review of the Implementation of the Industry Ground Water
Protection Voluntary Initiative,'' to determine the licensee's
implementation of the specifications in the industry's groundwater
initiative document NEI-07-07, ``Industry Ground Water Protection
Initiative--Final Guidance Document,'' (ADAMS Accession No.
ML072610036).
4. Confirmation of the basis, calculational methodology, and
results obtained by the licensee to estimate a contaminated groundwater
effluent release and off-site dose consequence to members of the
public.
5. Analysis of selected ground water and environmental samples to
aid in determining the adequacy of the licensee's analytical methods.
6. Approval for additional NRC inspection resources above the
baseline inspection program to fully evaluate and provide continuing
regulatory oversight of the licensee's investigation and remediation
activities.
7. Documentation of the inspection scope and conclusions in
publicly available NRC Inspection Reports.
As a result of these activities, the NRC established reasonable
assurance, in a timely manner, that this groundwater condition would
not result in any dose consequence that would jeopardize public health
and safety. To date, information and data continue to support that the
dose consequence attributable to the groundwater condition at VY
remains well below the ``As Low As Reasonably Achievable'' (ALARA) dose
objectives specified in 10 CFR Part 50, Appendix I; and that the NRC
regulatory criteria of 10 CFR 20.1301, ``Dose limits for individual
members of the public,'' was never approached.
In addition, representatives from the State of Vermont observed NRC
inspection activities and conducted independent analyses of collected
groundwater samples.
As discussed in Section I, the specific concerns raised by the
petitioners which are used as the basis for their requests are
discussed in the following paragraphs.
A. NRC Response to the Consolidated Petition
1. Concern 1--Increasing Concentrations of Radiocontaminants in the
Soil and Groundwater at VY
In order to address/remove the onsite contamination, Entergy
installed an extraction well (GZ-EW1) on March 23, 2010. On April 7,
2010, Entergy placed into service a second extraction well (GZ-EW1A),
with a higher flow capacity. As the plume progressed toward the
Connecticut River, the extraction wells were sited accordingly, with
GZ-15 being utilized for groundwater extraction at various times
starting on July 28, 2010, followed by installation of extraction well
EW-2 which began operation along with GZ-14 on September 13, 2010. As
of December 21, 2010, Entergy has pumped approximately 307,000 gallons
of groundwater out of these wells in order to reduce the amount of
tritiated water in the groundwater. About 9,000 gallons of the
extracted water was recycled to the facility, and about
[[Page 14999]]
298,000 gallons of the extracted water has been shipped off-site for
processing. Data indicates that the remaining residual plume of
tritiated groundwater is currently migrating from the source of the
leak to the Connecticut River, which is the direction of flow for the
groundwater in this location. Notwithstanding the hydrology, no
detectable tritium has been found in the Connecticut River. The NRC's
inspections to date confirm that no Federal regulatory limits have been
exceeded, and public health and safety remain unaffected.
The soil in the vicinity of the leak was contaminated with small
amounts of radioactive particulates associated with nuclear plant
operations, including manganese-54, cobalt-60, zinc-65, strontium-90,
and cesium-137. Sampling indicated very little migration in the
immediate area, which is typical for these radionuclides. Entergy has
removed about 150 cubic feet of contaminated soil and packaged it for
eventual disposal in accordance with NRC regulatory requirements.
Although some minor amounts of contaminated soil may remain, NRC
inspections indicate that this soil poses no threat to public health
and safety. Areas of remaining minor contamination are expected to be
evaluated, and as appropriate, remediated during plant decommissioning.
The NRC's experience with decommissioned nuclear plants such as Maine
Yankee, Haddam Neck, and Yankee Rowe indicates that these areas can be
successfully remediated during decommissioning. The NRC's inspections
indicate that no Federal regulatory limits have been exceeded, and
there are no health or safety concerns for members of the public or
plant workers. The initial NRC inspection covered the period of January
25 through April 14, 2010. Inspection results were initially discussed
in an NRC inspection report with preliminary results, dated April 16,
2010 (ADAMS Accession No. ML101060419). The NRC issued its completed
report on May 20, 2010 (ADAMS Accession No. ML101400040), and continued
to inspect the licensee's actions in these areas. The follow-up NRC
Inspection Report 05000271/2010010 was issued on January 7, 2011, ADAMS
Accession No. ML110070085.
As part of its corrective action program, Entergy performed a root
cause analysis (RCA) of the leakage event. The NRC assessed the
comprehensiveness of this analysis and documented this review in NRC
Inspection Report 05000271/2010009 dated October 13, 2010 (ADAMS
Accession No. ML102860037). The NRC concluded that Entergy's root and
apparent cause evaluations for the tritium ground water leakage events
were appropriate and no violation of NRC requirements was identified.
As discussed, Entergy has identified the source of the leak and
stopped it, and has reduced the onsite contamination by pumping out
contaminated groundwater and removing about 150 cubic feet of
contaminated soil. The NRC's inspections confirm that no Federal
regulatory limits have been exceeded, and the public health and safety
remains unaffected. Thus, no enforcement action is warranted for this
concern.
2. Concern 2--VY Was Unaware of the Existence of Some Buried Pipes
During License Renewal Application Proceeding
On February 24, 2010, Entergy informed the NRC that some employees
at VY had been removed from their site positions and placed on
administrative leave. Entergy took these actions as a result of
Entergy's independent internal investigation into alleged contradictory
or misleading information provided to the State of Vermont that was not
corrected. On May 27, 2010, an NRC audit team completed an onsite audit
to independently verify that information provided by Entergy material
to the renewal of the VY operating license was complete and accurate.
The NRC staff reviewed the VY yard piping drawings to independently
identify buried and underground piping located onsite. The NRC staff
performed walk-downs of yard areas and conducted interviews with the
buried piping program engineer. The NRC staff also reviewed the results
of system walk-downs previously performed by NRC inspectors during the
performance of NRC Inspection Procedure (IP) 71002, ``License Renewal
Inspection,'' as documented in NRC Inspection Report 05000271/2007006,
dated June 4, 2007 (ADAMS Accession No. ML071550330). Additionally, the
NRC staff had the opportunity to observe exposed portions of buried
piping that had been previously excavated by Entergy in conjunction
with actions taken to investigate the cause of a leak from an
underground portion of piping in the AOG system. The NRC staff compared
the results of this review to a list of buried and underground piping
Entergy had provided in preparation of the audit. The NRC staff did not
find any discrepancies between Entergy's current accounting of buried
and underground safety-related piping and the description contained in
the license renewal application, and so concluded that all information
provided to the NRC in the license renewal application was complete and
accurate in accordance with 10 CFR 50.9. Note that non-safety
underground piping is excluded from the license renewal process. The
complete audit report dated September 3, 2010, may be found under ADAMS
Accession No. ML102070412. Because the NRC staff did not identify a
violation of NRC requirements, no enforcement action is warranted for
this concern.
3. Concern 3--Entergy's Failure To Comprehend and Understand the
Layout, Function, and Potentially the Interaction of the Plant's Own
Piping Systems Constitutes a Loss of Design Basis
The design basis for VY is the information that ``identifies the
specific functions to be performed by a structure, system or component
of a facility, and the specific values or ranges of values chosen for
controlling parameters as reference bounds for design.'' The design
basis is submitted to the NRC and is approved by the NRC by issuance of
the facility operating license. Any changes to the facility as
described in the final safety analysis report (FSAR) must be either
submitted to the NRC for approval through a license amendment, or
changed in accordance with the provisions of 10 CFR 50.59. Licensees
are required under 10 CFR 50.71(e) to update the FSAR, which was
originally submitted as part of the application for the license, to
assure that the information included in the FSAR contains the latest
information developed. These submittals contain all the changes
necessary to reflect information and analyses submitted to the
Commission since the last update to the FSAR. The submittal includes
the effects of all changes made in the facility or procedures as
described in the FSAR and all safety analyses and evaluations performed
by the licensee in support of approved license amendments or in support
of conclusions that the plant design change did not require a license
amendment.
As discussed in previous Section A.2, an NRC audit team compared
the information Entergy provided in the license renewal application to
the VY Technical Specifications and the FSAR. The NRC staff determined
that the information in the FSAR would meet the requirements of 10 CFR
50.71(e) regarding maintenance of design basis information, consistent
with the definition of ``design bases'' in 10 CFR
[[Page 15000]]
50.2, and reflects current plant design. Both safety and non-safety
underground yard piping are depicted on drawings in the VY's controlled
drawings system. The staff concluded that the information reviewed was
accurate and complete and the NRC staff did not identify any loss of
the design basis. Because no violations of NRC requirements were
identified, enforcement action is not warranted for this concern.
4. Concern 4--The NRC's ROP Failure To Detect Root Cause Trends of a
Series of High-Profile Incidents
While a failure of the NRC's ROP is not something for which the NRC
could take enforcement action against VY, the NRC staff is responding
to the petitioners' concern. Objectives of the ROP include: (1)
Improving the objectivity of reactor oversight so that subjective
decisions and judgment are not central process features; (2) improving
the scrutability of reactor oversight so that NRC actions have a clear
tie to licensee performance; and (3) risk-informing reactor oversight
so that NRC and licensee resources are focused on those aspects of
performance having the greatest impact on safe plant operation.
The ROP evaluates plant performance using objective, risk-informed
thresholds, which include the safety significance of inspection
findings and performance indicators (PIs). Objective performance
thresholds are intended to help determine the level of regulatory
engagement appropriate to licensee performance in each cornerstone
area. The thresholds were established so that sufficient margin existed
between nominal performance bands to allow for licensee initiatives to
correct performance problems before they warrant escalated regulatory
involvement. Sufficient margin exists to allow for both NRC and
licensee corrective actions to be taken in response to declining
performance before plant operation becomes unsafe. Under the ROP,
performance deficiencies that have no impact on safety are considered
minor and are entered into a licensee's corrective action program for
appropriate attention, but they do not result in any specific action by
the NRC. However, the NRC reviews the licensee's corrective action
program on a routine basis while performing the baseline inspection
program, and the staff performs more in-depth reviews on a periodic
basis while performing the inspection procedure, ``Problem
Identification and Resolution.''
In addition to continuous inspection and assessment of VY
performance, annual and mid-cycle assessments of VY performance are
conducted. Annual and mid-cycle assessments involve review of the
safety significance and common factors associated with inspection
findings, and review of licensee objective performance indicators. The
results associated with the last several reviews indicate that VY is
being operated in a manner which preserves public health and safety.
The high profile events referenced by the petitioners were inspected by
a combination of specialist inspectors from both the NRC regional
office and NRC headquarters, and by the onsite resident inspector
staff. These events were determined to either not involve systems
important to plant safety, or involved performance deficiencies of very
low safety significance. In June 2009, the NRC conducted a Problem
Identification and Resolution inspection at VY. The results of this
inspection indicated that VY was generally effective in the
implementation of its corrective action program; additionally, the
safety culture of station employees, including station management,
indicated that personnel had a willingness to identify, evaluate, and
resolve plant deficiencies. The current and past performance
information, including the Mid-Cycle and Annual Assessment Letters and
inspection reports issued to VY and other licensees, are publically
available and presented on the NRC's public Web site.
The ROP Action Matrix is used to determine the level of regulatory
oversight warranted for varying levels of performance. VY is in Column
1 (Licensee Response Column) of the ROP Action Matrix because all
inspection findings and PIs at this site have very low (i.e., green)
safety significance. In accordance with Inspection Manual Chapter (IMC)
0305, ``Operating Reactor Assessment Program,'' plants in Column 1 meet
all cornerstone objectives and receive the NRC's baseline inspection
program.
The deviation process described in IMC 0305 is used to address
unique situations where the oversight defined by the ROP Action Matrix
column might not be appropriate or sufficient. Even though performance
at VY had not crossed any thresholds warranting additional regulatory
oversight, the staff considered it appropriate to apply additional
resources to monitor the licensee's efforts to address the onsite
groundwater contamination and to follow up on the licensee's response
to the NRC's Demand for Information dated March 1, 2010 (ADAMS
Accession No. ML100570237). The staff requested and received
authorization from the NRC's Executive Director for Operations (EDO) on
April 5, 2010 (ADAMS Accession No. ML100960321), to deviate from the
ROP Action Matrix to apply additional resources in these areas of
licensee performance.
Although tritium has been found in onsite monitoring wells, the
staff has not identified a hazard to public health and safety, and the
staff expects any off-site radiological releases to be very small
(i.e., off-site doses, if any, would be negligible with respect to
those received from normal background radiation levels). Nevertheless,
as noted in the Action Matrix deviation memorandum, increased NRC
oversight of the characterization, mitigation, and remediation of the
tritium contamination was warranted given the extraordinary level of
interest and concern by stakeholders. Although there is not currently,
nor is there likely to be, a public health and safety issue, the NRC is
conducting additional independent inspections and assessments of the
licensee's activities, and has increased external stakeholder
communications and outreach, to respond to stakeholder concerns and
maintain public confidence.
The NRC staff considers the ROP adequate for ensuring public health
and safety and notes that the groundwater contamination at VY does not
pose a public health or safety hazard.
The staff further notes that it has exercised its authority to
deviate from the ROP Action Matrix to be responsive to unique
circumstances and stakeholder concerns. The NRC staff conducts annual
ROP self-assessments, which include evaluations of deviations from the
Action matrix to see if improvements are warranted in the ROP. The
results of the calendar year 2010 self-assessment will be included in
the annual Commission paper and metric report, which will be issued in
early April of 2011 and discussed during the Agency Action Review
Meeting (AARM): a meeting of senior NRC managers to confirm the results
and effectiveness of the ROP. The results of the AARM will be presented
to the Commission in a public meeting in May 2011.
5. Concern 5--VY's Decommissioning Fund Is Inadequate Due to the
Increase in Decommissioning Costs
NRC establishes requirements for licensees to provide reasonable
assurance that funds will be available for the decommissioning process.
Reasonable assurance consists of a series of steps outlined in 10 CFR
50.75, ``Reporting and record keeping for decommissioning planning.''
VY must
[[Page 15001]]
file an annual report to the NRC containing a certification that
financial assurance for decommissioning will be or has been provided in
an amount which may be more, but not less than, the amount stated in
the regulations, adjusted as appropriate for changes in labor, energy,
and waste burial costs. The formula for adequate decommissioning funds
includes an estimated waste disposal volume based on the plant design.
The actual waste disposal volume may increase due to a leak or spill at
a level that requires remediation. The licensee is responsible for
payment of any increased waste disposal costs, whether paid for out of
the allocated funds from the decommissioning fund or other assets. The
current remediation of the tritium in soil and groundwater at VY has
been funded as an operating expense and no money was used from the
decommissioning trust fund. VY previously submitted a site-specific
decommissioning cost analysis, which was approved by the NRC by letter
dated February 3, 2009 (ADAMS Accession No. ML083390193). VY must
address any required changes in their next annual report. Because no
violations of NRC requirements were identified, enforcement action is
not warranted for this concern.
B. Additional NRC Actions Pertaining to Groundwater Contamination
In March of 2010, NRC's EDO established a Groundwater Task Force
(GTF) to review the NRCs approach to ground water contamination
conditions, given the recent incidents of leaking buried pipes at
commercial nuclear power plants. The charter of the Task Force was to
reevaluate the recommendations made in the Liquid Radioactive Release
Lessons Learned Task Force Final Report dated September 1, 2006 (ADAMS
Accession No. ML062650312); review the actions taken in Commission
Paper SECY-09-0174 ``Staff Progress in Evaluation of Buried Piping at
Nuclear Reactor Facilities'' (ADAMS Accession No. ML093160004); and
review the actions taken in response to recent releases of tritium into
groundwater by nuclear facilities.
The GTF completed its work in June 2010 and provided its report to
the EDO. The report characterized a variety of issues ranging from
policy issues to communications improvement opportunities. The complete
report may be found under ADAMS Accession No. ML101740509. The GTF
determined that the NRC is accomplishing its stated mission of
protecting public health, safety, and protection of the environment
through its response to groundwater leaks/spills. Within the current
regulatory structure, the NRC is correctly applying requirements and
properly characterizing the relevant issues. However, the GTF reported
that there are further observations, conclusions, and recommendations
that the NRC should consider in its oversight of groundwater
contamination incidents.
The EDO appointed a group of NRC senior executives to review the
report and consider its findings. The group reviewed the GTF final
report, including the conclusions, recommendations, and their bases.
They identified conclusions and recommendations that do not involve
policy issues, and tasked the NRC staff to address them. They have also
identified policy issues, and a policy paper has been sent to the
Commission discussing those issues.
A public workshop was held on October 4, 2010, with external
stakeholders to discuss the findings of the GTF Report and to receive
input on the potential policy issues. In addition, a request for public
comment was published in the Federal Register (75 FR 57987). These
efforts help to ensure the NRC is considering the right issues on which
to focus its attention as it moves forward. The transcript from this
meeting is available on the NRC's Web site at: https://www.nrc.gov/reading-rm/doc-collections/fact-sheets/buried-pipes-tritium.html.
III. Conclusion
As summarized above, the NRC staff did not identify any violations
and the public health and safety remains reasonably assured. Thus, no
enforcement action against VY is warranted. The NRC staff concludes
that the petitioners' concerns have been addressed and resolved such
that no further action is needed in response to the petitions.
As provided in 10 CFR 2.206(c), a copy of this Director's Decision
will be filed with the Secretary of the Commission for the Commission
to review. As provided for by this regulation, the Decision will
constitute the final action of the Commission 25 days after the date of
the Decision unless the Commission, on its own motion, institutes a
review of the Decision within that time.
Dated at Rockville, Maryland, this 11th day of March 2011.
For the Nuclear Regulatory Commission.
Eric J. Leeds,
Director, Office of Nuclear Reactor Regulation.
[FR Doc. 2011-6401 Filed 3-17-11; 8:45 am]
BILLING CODE 7590-01-P