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Pilgrim Decommissioning

Home > Company > Divisions & Affiliates > Holtec Decommissioning International > Our Fleet > Pilgrim Decommissioning

Pilgrim Nuclear Power Station was shut down permanently by Entergy on May 31, 2019, after providing electricity safely to the region for more than 46 years.  In August of 2019, Pilgrim Nuclear Power Station was purchased by Holtec International in a deal that allowed the site to enter immediate decommissioning. The deal enables decommissioning and site release for alternate uses decades sooner than previously anticipated. As Pilgrim enters into this new chapter, its commitment to safety, the community and the environment remains unchanged.

Decommissioning Update, May 2022

Decommissioning Update, May 2022

Pilgrim Fuel Transfer

Pilgrim Fuel Transfer

Pilgrim Decommissioning

Pilgrim Decommissioning

Our Goals for Decommissioning Pilgrim

Achieving excellence in the health and safety of personnel

Protecting the environment now and for future generations

Ensuring a safe, respectful and equal opportunity workplace

Demanding the highest level of individual and corporate integrity

Continually improving upon our robust quality assurance program

Employing financially sustainable business practices

Maintaining transparent and ongoing communication with stakeholders

Fulfilling our promise to be a trusted steward of legacy nuclear materials


Decommissioning Nuclear Power Plants

Decommissioning is the process by which nuclear power plants are safely retired from service. The progression involves decontaminating the facility to reduce residual radioactivity, dismantling the structures, removing contaminated materials to appropriate disposal facilities and releasing the property for other uses. The owner remains accountable to the NRC until decommissioning has been completed and the agency has terminated its license.


Here’s a brief look at what will occur at Pilgrim:

  1. Pilgrim shut down its reactor for the final time on Friday, May 31, at 5:28 p.m. This removed 670 megawatts of electricity from the regional grid.
  2. Pilgrim’s fuel has been removed from the reactor vessel and placed in the spent fuel pool to cool.
  3. Once cooled, the fuel will be placed in stainless steel canisters and transported to the Independent Spent Fuel Storage Facility (ISFSI) on station property. 
  4. Radioactive equipment and components are dismantled per an approved decommissioning plan.
  5. Contaminated components are dismantled, securely packaged and transported to a licensed off-site facility.
  6. The site is inspected by state and federal agencies to ensure the property has been returned to conditions outlined in the decommissioning plans. Both the State and Federal agencies will continue to monitor the site.


Our Decommissioning Team:

After Pilgrim Nuclear Power Station ceased operations, many of the operations employees transferred into a decommissioning organization. Throughout the decommissioning lifecycle, many of the same employees will assist in the safe dismantlement of Pilgrim Station. Here’s a look at what we will be doing. 

Protecting the facility and the public:

A security force will safeguard the facility until all nuclear fuel has been removed from the site.

Engineers, technicians & craftworkers:

A highly qualified, skilled staff of experts will oversee and conduct the entire dismantlement process.

Environmental Scientists:

Using company employees and contracted experts, we will continue a strong environmental monitoring program through decommissioning.

Emergency Responders:

Teams of qualified employees, both on and off-site, will be on-call all day, every day to work to protect the plant and the public in an unlikely emergency situation.


Overview of Decommissioning Process

  • To decommission a nuclear power plant, the licensee must submit A Post‐Shutdown Decommissioning Activities Report (PSDAR) to the NRC. This report provides a description of the planned decommissioning activities, a schedule for accomplishing them, and an estimate of the expected costs.
  • The licensee has to reduce the residual radioactivity to levels that permit release of the property and termination of the facility’s operating license. The site must be decommissioned within 60 years of the plant ceasing operations.
  • The decommissioning process involves removing the used nuclear fuel from the reactor; dismantling systems or components containing radioactive products (e.g. the reactor vessel); and cleaning up or dismantling contaminated materials from the facility.
  • Contaminated materials can be disposed of in two ways: decontaminated on site or removed and shipped to a waste processing, storage or disposal facility.

Decommissioning Options

(Companies can choose one or both options)

  • SAFSTOR (Safe Storage) ‐ Plant is kept intact, all fuel is placed in spent fuel pool or dry storage casks and time is used as a decontaminating agent. Plant is then dismantled similar to DECON once radioactivity has decayed to lower levels.
  • DECON (Decontamination) ‐ Contaminated equipment and materials are removed (used nuclear fuel rods and equipment account for over 99 percent of the plant’s radioactivity). Plant is then dismantled ‐ this phase can take five years or longer.

Terminating the NRC License, Releasing the Site

As the DECON phase nears completion, the company must submit a license termination plan to the NRC. This needs to occur within two years of the proposed license termination date. After the NRC receives the license termination plan, affected states, local communities and tribes may submit comments on the plan at a public meeting near the facility. The public also has the opportunity to request an adjudicatory hearing. Members of the public may observe any meeting the NRC holds with the company, unless the discussion involves proprietary, sensitive, safeguarded or classified information.

Once public concerns are addressed, the NRC will terminate the license if all work has followed the approved license termination plan and the final radiation survey shows that the site is suitable for release. Most plans envision releasing the site to the public for unrestricted use, meaning any residual radiation would be below NRC’s limits of 25 millirem per year. This completes the decommissioning process. 


FAQs

  • How long will it take to decommission Pilgrim?
    As stated in the PSDAR, Holtec plans to decommission Pilgrim (with the exception of the Independent Spent Fuel Storage Installation) on an eight-year schedule to permit NRC partial site release.
  • How can Holtec complete Pilgrim’s decommissioning in the schedule timeframe?

    Part of decommissioning is moving the spent nuclear fuel from storage in the spent fuel pool to the dry storage facility called an Independent Spent Fuel Storage Installation (or ISFSI) which used to take five or more years after reactor shutdown. Holtec has dry storage systems, which allow the transfer to be safely completed in less than three years. The rest of the decommissioning activities can be safely started sooner and be performed more efficiently with the spent nuclear fuel on the ISFSI.

  • How will materials be removed from the site during decommissioning?

    Holtec continues to explore all options for the safe and efficient removal of materials from the site including trucking and barging of waste. Once shipping decisions are finalized this will be shared with the local community. All shipping decisions will put safety first and would be done to minimize impact on the local community and environment.

  • Is Holtec using non-union labor to decommission Pilgrim?

    Holtec’s decommissioning team has a National Labor Agreement (NLA) in place with the Operating Engineers of North America; the International Brotherhood of Electrical Workers; the United Brotherhood of Carpenters and Joiners of America; and the International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers. Working through these unions, local union halls near Pilgrim have been identified to provide the necessary skilled labor needed to safely execute and complete decommissioning.

  • What is Holtec’s plan for the Pilgrim site and adjacent property after it has completed decommissioning?

    Holtec has no immediate plans for any of the property at this time. As decommissioning proceeds further along, Holtec looks forward to partnering with the local community about possible future uses.

  • How can I learn about Pilgrim decommissioning?

    To learn more about Pilgrim decommissioning, visit www.pilgrimdecom.com.

  • How many casks will be used to hold all of Pilgrim’s spent nuclear fuel?

    Sixty-one casks will be used to store Pilgrim’s spent nuclear fuel.

  • What are the Aging Management Plans for Independent Spent Fuel Storage Installations and Dry Cask Storage Systems at Pilgrim?

    The design, manufacturing, deployment, monitoring and maintenance activities for the HI-STORM 100 system are all conducted to ensure the safe storage of spent nuclear fuel. The aging management plan is under currently (July 2020) review by the NRC. Generally speaking, the first, baseline, inspection will occur within 365 days of the 20th anniversary of the initial overpack loading at the site; in the case of Pilgrim, the first inspection will occur in 2034. While the timeframe for actual inspection is some time away, the operations department performs daily visual inspections of the casks on the pad. In addition, we continue to collect and analyze new information on aging effects based on inspection findings and/or industry operating experience to ensure the continued safe storage of spent nuclear fuel. For more information, click here for a non-proprietary version of the renewal application for the casks. Finally, the Energy Power Research Institute Dry Canister Storage Canister Inspection from Diablo Canyon can be found here, as well as an update on Inspections of Dry Storage Canisters here.

  • What are the safety implications of leaving spent fuel in casks located near Cape Cod Bay? Are there any concerns for flooding?

    There are no safety concerns with leaving the HI-STORM systems where they are currently located (the current spent fuel storage pad is located at 25.5 feet above mean sea level). Holtec’s dry storage systems are extremely robust and can withstand all kinds of unusual and accident conditions including events from natural phenomena like flooding, earthquakes, burial under debris, lightning strikes, and other phenomena (e.g., seiches, tsunamis, and hurricanes). Holtec is currently building a new, larger pad to accommodate a complete defueling of the Pilgrim spent fuel pool by 2022. This pad will be located at 75 feet above mean sea level. The new location was chosen for a number of reasons, including environmental concerns, but is focused on allowing prompt decommissioning in a safe and efficient manner.

  • The new pad is located adjacent to Rocky Hill Road and may be visible during certain seasons because of the changes in foliage. Is this safe?

    As long as used fuel remains on site, a highly trained security force and a fortified security perimeter will remain in place according to Nuclear Regulatory Commission regulations. In addition, Holtec is committed to working with the community to provide additional screening from the roadway.

  • When will Pilgrim’s spent fuel be removed from site?

    The federal government has the obligation to take receipt of used fuel located at nuclear stations across the industry. At this time, there is no clear timeline for that action. Holtec has submitted its license application to build a consolidated interim storage facility for spent fuel called HI-STORE in New Mexico. Pilgrim’s used fuel could be relocated to this facility.

  • How is “damaged” fuel (sometimes referred to as “degraded” and “defective”) defined?

    The Division of Spent Fuel Storage and Transportation, Interim Staff Guidance (ISG) – 1, Revision 2, Classifying the Condition of Spent Nuclear Fuel for Interim Storage and Transportation Based on Function (ML071420268), provides guidance on classifying spent nuclear fuel as either (1) damaged, (2) undamaged, or (3) intact, before interim storage or transportation. View ISG-1, Rev. 2 here.

  • Please provide NRC rules/guidance on treating damaged fuel before placing it within a dry cask storage system at Pilgrim.

    The HI-STORM 100 storage system and the HI-STAR 100 transportation system are each licensed to store and transport damaged fuel and fuel debris, respectively. Damaged fuel and fuel debris must be loaded into a Damaged Fuel Container (DFC) for storage in the MPC and subsequent transportation in the HI-STAR 100 overpack. The MPC-68 is qualified to accommodate up to 16 DFCs in each MPC-68 canister.

  • How does Holtec detect that a fuel assembly is damaged?

    In accordance with ISG-1 Rev. 2., for Pilgrim, Holtec was provided a report of the spent fuel classification program conducted by the previous owner. Holtec has validated the accuracy of the data and concurs with the classification. A summary of the spent fuel classification program follows:

    • In accordance with the definition in ISG-1 Rev. 2, review of reactor operating records was conducted to determine suspect assemblies.
    • Fuel sipping was conducted to determine if a fuel assembly has damage that exceeds the classification of undamaged fuel.
    • If the fuel sipping could not positively determine if a fuel assembly has damage that exceeds the classification of undamaged fuel, then it was conservatively classified as a damaged assembly.
  • How many fuel assemblies at Pilgrim has Holtec determined are damaged?

    It has been determined that there are 296 damaged fuel assemblies at Pilgrim. No fuel debris has been identified.

  • How does Holtec treat damaged fuel? Please explain any additional special packaging used for a degraded assembly within the dry storage system.

    To provide the secondary containment that is required by ISG-1 Rev. 2, Holtec uses Damaged Fuel Containers (DFC) for damaged fuel (see photo below). If fuel debris is encountered, the DFC would also be used for fuel debris.

  • What are NRC’s rules on storing and transporting damaged fuel?

    Damaged fuel and fuel debris are placed in a Damaged Fuel Container (DFC) for storage and transport in the MPC. The DFC is licensed for storage in the HI-STORM 100, HI-STORM FW and HI-STORM UMAX and for transport in the HI-STAR 100 and HI-STAR 190.

  • Why is the Emergency Planning Zone (EPZ) being reduced? Do the communities still receive funding for emergency preparedness?

    The emergency planning zone will be reduced to the site boundary on April 1, 2020. This allowance is determined based on careful review and consideration of scientific data related to the risks associated with a potential issue with the spent fuel pool. With the reactor no longer in operation, and the multiple defense in depth options to maintain adequate level in the spent fuel pool, the scientific basis for the reduction is warranted. The change was consistent with other decommissioning plants and was approved by the Nuclear Regulatory Commission.

    Pilgrim has reached agreements with the former EPZ communities for demobilization of the program, while continuing to maintain an agreement with the host community of Plymouth through fuel on the pad which is projected to occur in 2021. Safety and security remain our #1 focus at Pilgrim Station.

  • How will Holtec keep the community informed?

    Keeping neighbors and stakeholders informed has always been a priority at Pilgrim. Holtec regularly attends and provides information to local and state boards. The Massachusetts Nuclear Decommissioning Citizens Advisory Panel (NDCAP), as well as the Plymouth Select Board routinely receive updates on the project. Past NDCAP meetings and information can be found here. In addition PACTV, the local cable access channel, posts each meeting on their YouTube channel for viewing, which can be found here.

Contact Us

  • At Holtec International (“Holtec”), we are committed to protecting and respecting your privacy.

    This Policy explains what personal information we collect, when and why we collect personal information about people who visit our website, how we use it, the conditions under which we may disclose it to others and how we keep it secure.

    We may change this Policy from time to time and may do so for any reason, without notice to you, other than the posting of the amended Policy on our Site. You should check our Site frequently to see the current Policy that is in effect and any changes that may have been made to it.

    The effective date of this Policy is May 25, 2018.

    The Data Controller

    The data controller in respect of our website is Holtec International, located at One Holtec Boulevard, Camden, New Jersey 08104. You can contact the data controller by writing to this address or by sending an email to webmaster@holtec.com.

    The data controller’s representative is Amy Grant. You can contact the data controller’s representative by writing to One Holtec Boulevard, Camden, New Jersey 08104 or sending an email to webmaster@holtec.com.

    Any questions regarding this Policy should be directed to the data controller.

    Data Processors

    Data processors are those individuals or entities that maintain and process personal data according to instruction from the data controller, or according to its own standards.

    Holtec uses the following third-parties to process personal data:

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    We encourage you to read the privacy policies of these data processers as their respective policies will govern the processing of your personal information.

    What personal information do we collect?

    The types of personal information we collect include the following:

    your name;
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    your payment information;
    information about your computer (e.g. your IP address); and
    information about how you use our website.
    Holtec does not collect sensitive personal information.

    How do we collect personal information from you?

    Holtec collects personal information from you when you provide it to us. For example, we collect personal information when you submit information to us (i) through email; (ii) by phone; (iii) in writing; (iv) an online form or other method (such as contacting us through our “Contact Us” website functions); (v) in person; (vi) when you order products and services; and (vii) when you register to receive our Company newsletters. Holtec may also collect personal information that is provided from third-parties.

    Why do we collect personal information from you?

    Holtec collects personal information because it uses this information to improve, maintain, provide and enhance its products and services. Further, Holtec has a legitimate business interest in improving, maintaining, providing and enhancing its products and services. Accordingly, Holtec collects personal information from you for its legitimate business interest. We will keep your personal information as long as we have a legitimate business or legal need to do so.

    How do we secure your personal information that we collect from you?

    Holtec has implemented and currently maintains an information security program that includes administrative, technical, and physical safeguards and other security measures necessary to help (a) ensure the security, confidentiality, and integrity of your personal information; (b) protect against any anticipated threats or hazards to the security, confidentiality, and integrity of your personal information; (c) protect against unauthorized access to, destruction, modification, disclosure or use of your personal information; and (d) detect and respond to security incidents involving your personal information. We permit persons working for us to access and use your personal information only to serve our legitimate business and our customers’ service needs, in accordance with this Policy.

    Sharing your Personal Information

    Holtec may share and disclose your personal information to the following types of third-parties for the purposes described in this privacy policy:

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    Individual Rights

    Under the General Data Protection Regulation (GDPR), the following individual rights are provided to data subjects within the EU and European Economic Area (EEA):

    The Right to be Informed: this Policy is intended to provide the necessary information to inform all data subjects.
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    Holtec’s website may contain links to other websites which are outside our control and are not covered by this Policy (“Third-Party Websites”). If you access Third-Party Websites using the links provided, the operators of such sites may collect information from you which will be used by them in accordance with their own privacy policies, which may differ from ours. We encourage you to review the privacy policies of those Third-Party Websites so that you understand if/how they collect and/or use information from you or your computer.

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HDI is Licensed Operator for Pilgrim

Holtec Decommissioning International (HDI) is a wholly owned subsidiary of Holtec International headquartered at the Krishna P. Singh Technology Campus, Camden, NJ. HDI functions as the licensed operator for Holtec owned nuclear power plants. HDI provides the licensee oversight of the decommissioning work that is performed.

Public Meetings

2021 Pilgrim Stakeholder Meeting

Defueled Emergency Plan

Overview of the Pilgrim Station Permanently Defueled Emergency Plan 

Public Documents and NRC Filings

NRC’s Frequently Asked Questions About Water Discharged at Pilgrim Nuclear Power Plant

EPA Region Presentation

Cape Cod Bay Sample Map and SW Testing Results

Pilgrim Water Inventory Characterization

Revised Environmental Site
Assessment Work Plan February 2022

Water Disposition Information Sheet

Environmental Site Assessment May 2021 Submittal to Commonwealth of Massachusetts

Press Release on Holtec-Commonwealth of Massachusetts Agreement

Settlement Agreement – Commonwealth of MA and Holtec

Pilgrim Nuclear Power Station License Transfer Application

Pilgrim Nuclear Power Station Transfer of License

Pilgrim Nuclear Power Station License Transfer Order

Pilgrim Nuclear Power Station Updated Spent Fuel Management Plan Letter

Pilgrim Nuclear Power Station Post-Shutdown Decommissioning Activities Report Decommissioning Cost Estimate Letter

Pilgrim Nuclear Power Station Commingled Funds Exemption Request Letter

Pilgrim HDI DECON Revised Post-Shutdown Decommissioning Activities Report and Decommissioning Cost Estimate


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