LIC-22-0006, Reactor Head Disposition Project Overview
| ML22080A234 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 03/17/2022 |
| From: | Allan Barker Omaha Public Power District |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| LIC-22-0006 | |
| Download: ML22080A234 (45) | |
Text
444 SOUTH 16TH STREET MALL
- OMAHA, NE 68102-2247 10 CFR 50.82(a)
LIC-22-0006 March 17, 2022 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Fort Calhoun Station, Unit No. 1 Renewed Facility Operating License No. DPR-40 NRC Docket No. 50-285
Subject:
Fort Calhoun Station (FCS) Reactor Head Disposition Project Overview
References:
- 1. Letter from NRC (J. Rubenstone) to OPPD (M. Fisher), Fort Calhoun Nuclear Generating Station Foreign Obligations Compliance during Decommissioning, dated August 9, 2018 (ML18201A999).
- 2. OPPD Letter (T. Burke) to USNRC (Document Control Desk), "Fort Calhoun Station, Unit No. 1, Post-Shutdown Decommissioning Activities Report," dated December 16, 2019 (LIC-19-0007)
(ML19351E355).
In a letter dated August 9, 2018 letter (Reference 1), the NRC recommended that OPPD provide a Regulatory Commitment, or some similar method, to ensure the U.S. Government can fulfill its international obligations with the Government of Japan. As a result, in a letter to the NRC on December 16, 2019 (Reference 2), OPPD committed to:
Notify the NRC of the final disposition of the reactor closure vessel head (RCVH) which was obtained from Mitsubishi Heavy Industries in Japan when the RCVH is removed from the FCS site, by transfer to another facility, sold as scrap metal, or any other pathway implemented during the decommissioning process.
It is anticipated that the RCVH will be disposed of as part of the FCS decommissioning process sometime in 2020. The above actions have been entered into the FCS commitment tracking system.
The purpose of this letter is to inform the NRC the final disposition of the OPPD RCVH obtained from Mitsubishi Heavy Industries, in compliance with OPPDs obligations under the August 9, 2018 letter (reference 1). On November 1, 2021, the RCHV physical decommissioning was commenced and segmented into ten (10) pieces for efficient handling and disposal. The RCHV segments were shipped via railcars on February 2, 2022 from OPPDs FCS to Energy Solutions Clive Disposal Facility in Clive, Utah. On February 10, 2022 the Clive facility received and accepted the RCVH shipment. The RCVH segments were unloaded and placed in a disposal cell with a Certificate of Disposal documenting the compliant disposal provided to OPPD. The attachments and associated scrap were also included with this disposal. Attachment 1 documents the disposal of the RCVH and contains the Certificate of Disposal.
LIC-22-0006 Page 2 This disposal did not affect the portion of the treaty requiring tracking associated with the nuclear fuel utilized during the operation of this RCVH.
Having complied with the obligations under the August 9, 2018 letter, OPPD deems the issue closed.
If you disagree or should have any questions regarding this report, please contact Andrea K Barker at 531-226-6051. There are no regulatory commitments contained in this letter.
Respectfully, Andrea K. Barker. CHP. MHP Regulatory Assurance & Emergency Planning Manager AKB/cac
Enclosure:
Attachment 1, Reactor Head Disposition Project Overview c:
S. A. Morris, NRC Regional Administrator, Region IV J. D. Parrott, NRC Senior Project Manager S. Anderson, NRC Health Physicist, Region IV
EnergySolutions, LLC Reactor Head Disposition Project Overview OPPD Decommissioning Project Fort Calhoun Station Blair, Nebraska Date IssuedMarch 8, 2022 Prepared by James A. Miller
Page 2 of 43 EXECUTIVE
SUMMARY
On November 1, 2021, the Reactor Vessel Head (RVH) disposition process on the Fort Calhoun Decommissioning Project commenced. The RVH disposition process was a multi-phased approach that included the removal of the RVH from the vessel, segmentation of the RVH, surveying and weighing of the RVH, characterization of the RVH, packaging for transport of the RVH, transportation of the RVH to an approved licensed disposal facility, and final and permanent disposal of the RVH.
Upon commencing this project, the RVH was removed from the Reactor Vessel and relocated to the segmentation laydown area within Containment Building. The RVH was segmented into ten pieces with the goal to ensure each piece weighed less than 10,000 lbs. The ten RVH pieces weighed a total 82,719 lbs. The segmentation process utilized a thermal cutting technique (i.e., oxygen-acetylene cutting torches). The segmentation operations, including housekeeping activities, took ten calendar days to complete and was completed on November 11, 2021. The housekeeping activities resulted in collection of cutting slag as a result of the thermal cutting activities. Cutting slag was packaged into two soft-sided sacrificial disposal containers weighing ~7,100 lbs total.
Prior to relocating the RVH pieces and cutting slag containers to the Waste Processing Structure (WPS), each RVH piece was radiologically surveyed and encapsulated with fixative to meet the off-site disposal facility Waste Acceptance Criteria (WAC) for radiological contamination of less than 50,000 dpm/100cm2 (beta-gamma) and 500 dpm/100cm2 (alpha). The radiological survey results and 10 CFR 61 (Part 61) Analysis were used to properly characterize the RVH pieces and cutting slag to demonstrate compliance with the disposal facilitys (Clive Disposal Facility) WAC and Radioactive Material License and the Department of Transportation regulations. Additionally, this information was utilized to determine waste classification (i.e., Class A).
The RVH pieces and cutting slag containers were relocated from Containment Building to the WPS on January 5th and 6th, 2022, in preparation of packaging into low-sided mill gondola railcars. On January 26th and 27th, 2022, the RVH pieces and cutting slag containers were loaded into three separate railcars commingled with construction debris (i.e., concrete rubble). Two of the three railcars were packaged with three RVH pieces and one cutting slag container while the third railcar was loaded with four RVH pieces. Prior to shipment, all required regulatory paperwork (e.g., Bill of Lading, Manifest, etc) were generated and submitted to the carrier (Union Pacific) and the disposal facility (Clive). The three railcars departed the OPPD site on February 2, 2022.
The railcars traveled seven days from the OPPD site to the Clive Facility located in Clive, Utah, arriving on February 9, 2022. On February 10, 2022, the Clive facility received and accepted the three railcar shipments. On February 11, 2022, the Clive facility unloaded the RVH pieces and cutting slag containers and placed them in the disposal cell for final disposition. The Clive Facility provided Certificates of Disposal (CODs) certifying the waste has been compliantly disposed. The RVH disposition process was conducted over a fourteen-week period.
Attached are pictures, summary reports, and trackers throughout the RVH disposition process.
Page 3 of 43 Reactor Vessel Head Disposition Process Summary Reporting
Page 4 of 43 Reactor Vessel Head disposition routine updates to OPPD January 5th thru February 11th, 2022.
Page 5 of 43 Reactor Vessel Head Removal
Page 6 of 43 Reactor Vessel Head relocated from reactor vessel to the segmentation area within the Containment Building on November 1, 2021.
Page 7 of 43 Reactor Vessel Head Segmentation
Page 8 of 43 Reactor Vessel Head segmentation activities within the Containment Building, November 1st thru 11th, 2021.
Page 9 of 43 Reactor Vessel Head Relocate to WPS
Page 10 of 43 Reactor Vessel Head pieces relocated from Containment Building to WPS, January 5th and 6th, 2022.
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Page 15 of 43 Reactor Vessel Head Cutting Slag Relocate to WPS
Page 16 of 43 Reactor Vessel Head cutting slag containers relocated from Containment Building to WPS, January 6th, 2022.
Page 17 of 43 Reactor Vessel Head Pieces and Cutting Slag Containers Loading into Railcar at WPS
Page 18 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars, January 26th, 2022.
FURX322300 with pieces 1, 4, 5 and Bag #2
Page 19 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars, January 26th, 2022.
FURX322355 with pieces 3, 6, 8 and Bag #1
Page 20 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars, January 27th, 2022.
FURX322336 with pieces 2, 7, 9, 10
Page 21 of 43 Reactor Vessel Head Pieces and Cutting Slag Containers Railcars prior to Departing OPPD
Page 22 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars prior to departing OPPD, February 2nd, 2022.
FURX322300 with pieces 1, 4, 5 and Bag #2
Page 23 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars prior to departing OPPD, February 2nd, 2022.
FURX322355 with pieces 3, 6, 8 and Bag #1
Page 24 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars prior to departing OPPD, February 2nd, 2022.
FURX322336 with pieces 2, 7, 9, 10
Page 25 of 43 Reactor Vessel Head Pieces and Cutting Slag Containers Reporting to OPPD Summary
Page 26 of 43 Reactor Vessel Head pieces and cutting slag containers railcar tracking post departing OPPD, February 2nd thru 9th, 2022.
Page 27 of 43 Reactor Vessel Head Pieces and Cutting Slag Containers Arrive at Clive
Page 28 of 43 Reactor Vessel Head pieces and cutting slag containers railcars arrive at Clive, February 9th, 2022.
FURX322300 with pieces 1, 4, 5 and Bag #2
Page 29 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars prior to departing OPPD, February 2nd, 2022.
FURX322355 with pieces 3, 6, 8 and Bag #1
Page 30 of 43 Reactor Vessel Head pieces and cutting slag containers loaded in railcars prior to departing OPPD, February 2nd, 2022.
FURX322336 with pieces 2, 7, 9, 10
Page 31 of 43 0
Reactor Vessel Head Pieces and Cutting Slag Containers Received and Accepted at Clive
Page 32 of 43 Reactor Vessel Head pieces and cutting slag containers railcars received and accepted at Clive, February 10th, 2022, signed NRC Form 540.
FURX322300 with pieces 1, 4, 5 and Bag #2
Page 33 of 43 Reactor Vessel Head pieces and cutting slag containers railcars received and accepted at Clive, February 10th, 2022, signed NRC Form 540.
FURX322355 with pieces 3, 6, 8 and Bag #1
Page 34 of 43 Reactor Vessel Head pieces and cutting slag containers railcars received and accepted at Clive, February 10th, 2022, signed NRC Form 540.
FURX322336 with pieces 2, 7, 9, 10
Page 35 of 43 1
Reactor Vessel Head Pieces and Cutting Slag Containers Processed at Clive
Page 36 of 43 Reactor Vessel Head pieces and cutting slag containers railcars processed at Clive, February 11th, 2022, unloading of material inside the railcar roll-over facility.
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Page 41 of 43 Reactor Vessel Head pieces and cutting slag containers railcars processed at Clive, February 11th, 2022, material placed in disposal cell.
Page 42 of 43 2
Reactor Vessel Head Pieces and Cutting Slag Containers Certificate of Disposal
Page 43 of 43 Reactor Vessel Head pieces and cutting slag containers Certificate of Disposal, February 11th, 2022, certifying waste has been disposed