[Federal Register Volume 90, Number 84 (Friday, May 2, 2025)]
[Notices]
[Pages 18851-18852]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-07608]
[[Page 18851]]
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ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OAR-2024-0309; FRL-12689-01-OAR]
Planned Change Request for Waste Isolation Pilot Plant
Replacement Panels 11 and 12; Closing of Public Comment Period
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice of availability with request for public comment; closing
of public comment period.
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SUMMARY: On July 16, 2024, the Environmental Protection Agency (EPA or
the Agency) announced for public comment the availability of a Planned
Change Request (PCR) submitted by the U.S. Department of Energy (DOE)
to modify the Waste Isolation Pilot Plant (WIPP). The proposed change
will involve adding two additional waste panels west of the current
repository to replace lost disposal capacity resulting from the 2014
radiological incident and ground control issues throughout WIPP's
operational history. A 60-day comment period was provided for the PCR
that expired on September 16, 2024. After requests from stakeholders
for an extension, the EPA reopened the public comment period
indefinitely on October 22, 2024. The Agency is now announcing the
closure of the public comment period.
DATES: With this notice, the Agency is closing the public period for
the documents published on July 16, 2024 at 89 FR 57887 and extended on
October 22, 2024 at 89 FR 74348 on June 2, 2025.
ADDRESSES: You may send comments, identified by Docket ID No. EPA-HQ-
OAR-2024-0309, by any of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov
(our preferred method). Follow the online instructions for submitting
comments.
Email: a-and-r-Docket@epa.gov. Include Docket ID No. EPA-
HQ-OAR-2024-0309 in the subject line of the message.
U.S. Postal Service Mail: U.S. Environmental Protection
Agency, EPA Docket Center, Air and Radiation Docket, Mail Code 28221T,
1200 Pennsylvania Avenue NW, Washington, DC 20460.
Hand Delivery/Courier: EPA Docket Center, WJC West
Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004.
The Docket Center's hours of operations are 8:30 a.m.-4:30 p.m.,
Monday-Friday (except Federal holidays).
Instructions: All submissions received must include the Docket ID
No. EPA-HQ-OAR-2024-0309. Comments received may be posted without
change to https://www.regulations.gov, including any personal
information provided. For detailed instructions on sending comments,
see the SUPPLEMENTARY INFORMATION section of this document. A copy of
the DOE's 2024 PCR is linked on EPA's WIPP website (https://www.epa.gov/system/files/documents/2024-03/24-0168-wipp-pcr-panels-letter-enclosures.pdf).
FOR FURTHER INFORMATION CONTACT: Ray Lee, Radiation Protection
Division, Office of Radiation and Indoor Air, Mail Code 6608T,
Environmental Protection Agency, 1200 Pennsylvania Avenue NW,
Washington, DC 20460; telephone number: (202) 343-9463; email address:
lee.raymond@epa.gov.
SUPPLEMENTARY INFORMATION: Submit your comments, identified by Docket
ID No. EPA-HQ-OAR-2024-0309, at https://www.regulations.gov (our
preferred method), or the other methods identified in the ADDRESSES
section.
Once submitted, comments cannot be edited or removed from the
docket. EPA may publish any comment received to its public docket. Do
not submit electronically any information you consider to be
Confidential Business Information (CBI) or other information whose
disclosure is restricted by statute. The written comment is considered
the official comment and should include discussion of all points you
wish to make. EPA will generally not consider comments or comment
contents located outside of the primary submission (i.e., on the web,
cloud, or other file sharing system). For additional submission
methods, the full EPA public comment policy, information about CBI or
multimedia submissions, and general guidance on making effective
comments, please visit https://www.epa.gov/dockets/commenting-epa-dockets.
Tips for preparing your comments. When submitting comments,
remember to:
Identify the document by docket number, subject heading,
Federal Register date, and page number.
Provide a brief description of yourself and your role or
organization.
Explain why you agree or disagree; suggest alternatives
and substitute language for your requested changes.
Describe any assumptions and provide any technical
information and/or data that you used.
Illustrate your concerns with specific examples and
suggest alternatives.
Explain your views as clearly as possible, avoiding the
use of profanity or personal threats.
Make sure to submit your comments by the comment period
deadline identified.
I. Background
The Waste Isolation Pilot Plant (WIPP) is a transuranic (TRU)
radioactive waste disposal system developed by the DOE that is located
near Carlsbad in southeastern New Mexico. TRU radioactive waste is
emplaced about 650 meters (2,150 feet) underground in an ancient layer
of salt that will eventually ``creep,'' encapsulate, and isolate the
waste from the surrounding environment. The 1992 WIPP Land Withdrawal
Act (Pub. L. 102-579) (LWA) limits radioactive waste disposal in the
WIPP to TRU radioactive wastes generated by defense-related
activities.\1\ The WIPP LWA provides EPA with authority to oversee and
regulate the WIPP. The WIPP must meet EPA's generic radioactive waste
disposal standards at 40 CFR part 191, subparts B and C. These
standards limit releases of radioactive materials from disposal systems
for radioactive waste and require implementation of measures to provide
confidence for compliance with the radiation release limits.
Additionally, the regulations limit radiation doses to members of the
public and protect ground water resources by establishing maximum
concentrations for radionuclides in ground water.
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\1\ TRU waste is defined as waste containing more than 100 nano-
curies per gram of alpha-emitting radioactive isotopes, with half-
lives greater than twenty years and atomic numbers greater than 92.
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In 1996, the Agency issued the WIPP Compliance Criteria, which are
located at 40 CFR part 194, as mandated by WIPP LWA, section 8(c).\2\
DOE submitted the initial WIPP Compliance Certification Application
(CCA) in 1996. The Agency then issued the certification decision on May
18, 1998, determining that the WIPP met the standards for radioactive
waste disposal. Since the 1998 certification decision, EPA has
conducted ongoing independent technical reviews, certification/
recertifications, and inspections of all WIPP activities related to
compliance with the Agency's disposal regulations. The WIPP has been
recertified four times since the initial CCA in 1996, with the most
recent recertification decision occurring in 2022.\3\
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\2\ 61 FR 5224-5245 (February 9, 1996).
\3\ 87 FR 26126 (May 3, 2022).
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As part of the original design of the WIPP repository in the
initial CCA, the underground waste disposal region at
[[Page 18852]]
WIPP is divided into panels. A panel is a group of rooms mined into the
salt, connected by tunnels called drifts. EPA certified the WIPP in
1998 and most recently recertified the WIPP in 2022 based on a planned
footprint of 10 waste panels.
On March 14, 2024, EPA received a planned change request (PCR) from
DOE per 40 CFR 194.4(b)(3) that seeks the Agency's approval to add two
replacement waste panels to the west of the current repository. These
two panels, 11 and 12, are being constructed to replace waste disposal
volume that was lost in panels 7 and 9 due to the 2014 radiological
release that contaminated the south end of the repository.\4\
Additionally, panels 1 and 2 were not completely filled due to ground
control issues from being kept open so long before waste was emplaced.
DOE has calculated that to replace the volume lost, 1.7 panels of waste
volume will be needed, rounded up to 2 panels for construction.\5\ DOE
also states that the waste volume with panels 11 and 12 will not exceed
the LWA waste disposal volume limit. The PCR contains a performance
assessment DOE has conducted to support a demonstration that the
repository will continue to meet the numeric release limits of EPA's
disposal regulations for the WIPP. As part of the performance
assessment, DOE calculated releases based on a repository design of 19
panels, which is the anticipated WIPP repository configuration at the
time of closure.
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\4\ For a discussion of the 2014 incidents at the WIPP, see
EPA's third recertification determination. 82 FR 33106, 33107 (July
19, 2017).
\5\ Knerr, R. (DOE/CBFO), Dunagan, S. (NWP LLC). Class 3 Permit
Modification Request [Letter to Maestas, R. (NMED)] (July 30, 2021).
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With this PCR, DOE is only seeking EPA's approval of the two new
planned panels and provided documentation to address the two new panels
within the context of the 19-panel design. However, after additional
review the Agency requested \6\ DOE to submit a subsequent performance
assessment using a 12-panel configuration as a sensitivity study to
supplement the calculations already provided with the initial
submission. DOE provided its last set of responses to EPA questions on
April 21, 2025. The Department would have to submit a separate request
for approval of any additional panels beyond panels 11 and 12.
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\6\ Peake, T. (EPA). Re: Twelve-Panel PA sensitivity study for
EPA's review of the Waste Isolation Pilot Plant Replacement Panel
Planned Change Request (November 26, 2024).
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II. Request for Comments/Closure of Public Comment Period
Over the past year, EPA has solicited public comment on DOE's
documentation of its PCR to add two new waste panels--panels 11 and
12--at the WIPP facility, and the demonstration of compliance with
EPA's disposal regulations. EPA has now received and posted for public
review all information requested from DOE. Additional background
information related to the Agency's review of DOE's application--
including an electronic copy of the PCR itself--is available in the
public docket \7\ established for this action and on the EPA WIPP
website.\8\
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\7\ Docket ID No. EPA-HQ-OAR-2024-0309 (https://www.regulations.gov).
\8\ https://www.epa.gov/radiation/wipp-news#WIPP-PCR.
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As outlined in this notice, the Agency will continue to accept
comment until June 2, 2025. Upon completion of EPA's evaluation of the
PCR, the Agency will announce a decision on the proposed two new panels
along with a response to comments document and related technical
support documents.
Jonathan D. Edwards,
Director, Office of Radiation and Indoor Air.
[FR Doc. 2025-07608 Filed 5-1-25; 8:45 am]
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