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Category:E-Mail
MONTHYEARML24271A0282024-09-26026 September 2024 E-Mail - Dresden Nuclear Power Station, Unit 1 - Site Visit Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations ML24250A1062024-09-0606 September 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24249A1362024-09-0404 September 2024 EN 57304 - Westinghouse Electric Company, LLC, Final Report - No Embedded Files. Notification of the Potential Existence of Defects Pursuant to 10 CFR Part 21 ML24233A2472024-08-20020 August 2024 Acceptance of Requested Licensing Action Request for Alternative Schedule to Complete Decommissioning Beyond 60 Years of Permanent Cessation of Operations ML24176A0232024-06-21021 June 2024 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance Review of the Amendment Request to Adopt 10 CFR 50.69 ML24159A0122024-06-0606 June 2024 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance of Licensing Amendment to Adopt TSTF-505 and TSTF-591 ML24131A0612024-05-10010 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative to Utilize Code Case OMN-32 (L-2024-LLR-0030) ML24066A0802024-04-0101 April 2024 Email to Christian Williams Decision on the Exemption Request for Dresden Nuclear Power Station Unit 2 and Unit 3 Independent Spent Fuel Storage Installation in Morris, Illinois ML24065A4892024-03-28028 March 2024 Email to Christian Williams Availability of Environmental Assessment for the Exemption Request for Dresden Nuclear Power Station Unit 2 and Unit 3 Independent Spent Fuel Storage Installation in Morris, Illinois ML24078A3772024-03-15015 March 2024 Email to the State of Illinois Requesting Review of the Dresden Exemption Request Environmental Assessment ML24066A0872024-03-0404 March 2024 NRR E-mail Capture - Dresden 2 and 3 - Request for Additional Information for Alternative Request I5R-22 ML24067A1242024-03-0101 March 2024 Email to Christian Williams: Request for Additional Information Regarding Dresden Relief Request Dated February 23, 2024 ML24065A2922024-02-28028 February 2024 2/28/24 Email from Constellation: Clarifying Information Regarding Dresden Relief Request Dated February 23, 2024 ML23339A0882023-12-0404 December 2023 NRR E-mail Capture - NRC Acceptance Review Re Dresden, Units 2 and 3 Request for Relief I5R-22 ML23328A0092023-11-22022 November 2023 Supplement - Dresden Security Rule Exemption Request ISFSI Docket No. Reference (EPID L-2023-LLE-0031) (Email) ML23304A0172023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Dresden 1, 2 & 3 - Exemption from Security Rule (L-2023-LLE-0031) ML23268A0022023-09-22022 September 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-264-A, Revision 0 ML23264A7992023-09-21021 September 2023 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC Fleet Request License Amendment Request to Adopt TSTF-580, Revision 1 ML23263A9932023-09-20020 September 2023 NRR E-mail Capture - Dresden Nuclear Power Station, Units 2 and 3 - Acceptance of Licensing Action Submittal Re Amendment to Adopt TSTF-564 ML23163A2292023-06-12012 June 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-580, Revision 1 ML23052A0652023-02-21021 February 2023 NRR E-mail Capture - Dresden Units 2 and 3 - Request for Additional Information for Alternative Request RV-23H ML23026A0172023-01-23023 January 2023 NRR E-mail Capture - (External_Sender) IEMA Response Action - Request for Comments on the Proposed Issuance of Amendment to Technical Specification 4.3.1 for Dresden Nuclear Power Station, Units 2 and 3 ML23019A0132023-01-12012 January 2023 NRR E-mail Capture - Final RAI Dresden 2 and 3 - License Amendment Pertaining to GNF3 Fuel Transition ML22354A2622022-12-20020 December 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Request to Use Certain Provisions of the 2019 Edition of the ASME BPV Code, Section XI ML22325A1212022-11-21021 November 2022 NRR E-mail Capture - NRC Acceptance Review Re Dresden, Units 2 and 3 Request for Relief RV-02D (EPID L-2022-LLR-0075), RV-03 (EPID L-2022-LLR-0076), and RV-23H ML22301A0902022-10-28028 October 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-301, Revision 2 ML22290A0842022-10-13013 October 2022 NRR E-mail Capture - Dresden 2 and 3 - RAI License Amendment Request Regarding New Fuel Storage Vault and Spent Fuel Storage Pool Criticality Methodologies ML22258A1882022-09-15015 September 2022 NRR E-mail Capture - Acceptance Review: Dresden 2 and 3 License Amendment Request to Revise Technical Specification 3.1.4, ML22258A1872022-09-13013 September 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3, Amendment Request - Transition to GNF3 Fuel ML22229A0752022-08-16016 August 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief 16R-09 ML22229A0762022-08-16016 August 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief 16R-10 ML22203A0442022-07-21021 July 2022 Request for Additional Information (RAI) ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits ML22199A2412022-07-18018 July 2022 NRR E-mail Capture - Acceptance Review: Dresden Units 2 and 3 - License Amendment Request New Fuel Vault Storage and SFP Criticality Safety Analysis Methodology ML22199A2422022-07-13013 July 2022 NRR E-mail Capture - Draft RAI Dresden 2 and 3 Proposed Alternative Related to Sblc Nozzle Inspection for the Sixth Inservice Inspection Interval ML22103A2112022-04-12012 April 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief (16R-01) - EPID L-2022-LLR-0037 ML22103A2132022-04-12012 April 2022 NRR E-mail Capture - NRC Acceptance Review Dresden, Units 2 and 3 Request for Relief (16R-02) - EPID L-2022-LLR-0038 ML22041B5362022-02-10010 February 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Request for Additional Information Regarding Fleet License Amendment Request to Adopt TSTF-541 ML22039A2042022-02-0808 February 2022 NRR E-mail Capture - Public Meeting Dresden/Quad Cities - Proposed Alternative to Use ASME Code Case N-921 ML22027A3592022-01-26026 January 2022 U1: CY2022 Inspection Plan, Docket No. 05000010, License No. DPR-2 ML22020A0642022-01-13013 January 2022 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21321A3802021-11-17017 November 2021 NRR E-mail Capture - NRC Acceptance Review of Dresden Nuclear Power Station, Units 2 and 3, Request for Exemption from 10 CFR 2.109(b) ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21252A0482021-09-0707 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Alternative Request for Repair of Water Level Instrumentation Partial Penetration Nozzles ML21244A4012021-08-10010 August 2021 (Final) Request for Information (RAI) Dresden, Units 1, 2, 3, and ISFSI Request for Exemptions from Portions of 10 CFR 50.47 and 10 CFR 50 Appendix E ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21190A0192021-07-0808 July 2021 NRR E-mail Capture - Exelon Fleet - Request for Additional Information Regarding Adoption of TSTF-582 and TSTF-583-T ML21154A0112021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0142021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application 2024-09-06
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(~.4h ~ir~r~ III Tritisum ~ Ine- P*nt, 1 I From: Jan StrasmaV To: Steven Orth Date: 3/2/06 4:07PM
Subject:
Region III Tritium Background Info Steve -
Let me know what the accession number for the document is when you have it entered into ADAMS so I can provide it to NRR to be included in the tritium web page.
Jan Jan Strasma NRC Office of Public Affairs Region III, Lisle IL PH630/829-9663 FX630/515-1096 rjs2@nrc.gov CC: Anne Boland
I Steven Orth - tritiumbackaroundinfoO30206-WDd Page 11l I tvnOt -=iimakronif0006wdPg N
RCNEWS U.S. NUCLEAR REGULATORY COMMISSION 2443 Warrenville Road Lisle IL 60532 Web Site: http://www.nrc.gov E-mail: opa3@nrc.gov March 2, 2006 NRC REGION III TRITIUM INSPECTION ACTIVITIES NRC Region Ill (Chicago) is reviewing tritium-related issues at Illinois nuclear power plants after groundwater contaminated with tritium was discovered offsite at the Braidwood Nuclear Power Station in November 2005. Braidwood and the other nuclear plants in Illinois are operated by Exelon Generation Co.
Tritium is a radioactive form of hydrogen. Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules. Tritium is also produced as a byproduct of the operation of nuclear power reactors and during nuclear weapons explosions. According to the Environmental Protection Agency, tritium is one of the least dangerous radioactive materials because it emits very weak radiation and leaves the body relatively quickly. The EPA has established drinking water standards for tritium to minimize the risk of exposure to water containing tritium.
Braidwood I" Exelon has collected groundwater samples from numerous monitoring wells on and near the Braidwood site which confirm the migration of tritium-containing water from an area.where leaks have occurred in a 42-inch diameter pipe which carries cooling water discharge to the Kankakee River. This pipe, though usually carrying non-radioactive water, has been used periodically for the release of low-level radioactive effluent from the plant, which is permitted under limits and conditions imposed by the NRC. Significant leaks in the pipeline occurred in 1996, 1998, and 2000.
On Nov. 30, 2005, Exelon informed the NRC that it had detected elevated tritium levels in recently installed monitoring wells on the site and that tritium-bearing groundwater may have migrated off the site to the north.
The NRC promptly began inspection activities to asses the groundwater conditions and review Exelon's activities in response to the problem. These inspection activities were carried out by radiation specialists from the Region III office as well as the two NRC resident inspectors assigned to the
I Steven Orth - tritiurnbackaroundinfo030206.wpd I Steven Orth tritiumbackaroundinfoO3O206.wod
- - - - ~'. .-*-.*- Pa~Ie 221ll Page Braidwood site. The NRC collected and analyzed independent samples of some area residential wells and, in addition, analyzed "split" samples of groundwater collected by Exelon. The results of the NRC "split" sample analysis have been consistent with Exelon's laboratory results. Initial inspection findings, throughlDec. 31, are contained in Inspection Report 05-10, which is available on the NRC web site.
In mid-February the NRC began an additional inspection focusing on the leaks from the circulating water discharge line beginning in 1996 - what information was available at the time, what actions Exelon took, and what followup activities occurred. This inspection is scheduled to be C completed in early March with the inspection report expected to be issued in early April.
Braidwood, like most nuclear plants, has been releasing water containing low levels of radioactivity under controlled and monitored conditions. These releases have be halted since late November while the company reviews its release procedures and verifies the integrity of the pipeline to the Kankakee River. In addition to liquid effluents, nuclear plants also release gaseous radioactivity after it has been filtered and monitored.
Byron Because the Byron Nuclear Power Station has a circulating water discharge line similar to that at Braidwood, the NRC resident inspectors are monitoring Exelon's activities there to determine what leakage may have occurred there and if there has been any possible groundwater contamination.
Exelon has identified measurable levels of tritium in water standing in the concrete vaults surrounding the vacuum breakers, the same types of valves which caused the leaks at Braidwood. The company is installing monitoring wells nearby to determine if there has been any migration of tritium-bearing water outside the vaults.
The NRC will be collecting independent samples and "split" samples of residential drinking water wells in the Byron plant area to determine if there is any measurable tritium.
Dresden The NRC inspectors at the Dresden Nuclear Power Station are assessing a leak in an underground pipe which resulted in tritium-bearing water being released to a small area on the plant site - about 30 feet square. This leak, which was reported to the NRC on Feb. 10, was in an underground pipe from a large water storage tank into the plant. Exelon replaced a portion of the pipe in 2004 when it developed a leak, and planned to replace the remained of the pipe in June. The leaking pipe was isolated by closing valves and drained to prevent further leakage.
Other Illinois Nuclear Plants NRC's resident inspectors at the other nuclear power plant sites in Illinois - LaSalle, Quad Cities, and Clinton - are also gathering information about how tritium-bearing water is handled on each site and whether there have been leaks or unplanned releases of tritium-bearing water in the past.
The NRC will also observe Exelon's collection of certain groundwater samples at these plants and collect "split" samples for analysis by the NRC's independent laboratory. These reviews and sample collection are part of the day-to-day NRC inspection activities at the plant and will not result in a separate inspection report. Any inspection findings will be documented in the resident inspector's quarterly reports which will be available on the NRC web site.
rth - tritiumbal-k-1 1nrIinfnn30206.WDd Haae *i u I Steven Urtfl - trItIumDacKarounaIntOUiU~U~.wDd racie ;i a NRC Documents Online:
Preliminary Notifications with additional details on Braidwood, Dresden, and Byron:
http://www.nrc.gov/reading-rm/doc-collections/event-status/prelim-notice/ - Select 2005 for Braidwood, 2006 for Dresden and Byron NRC Inspection Reports http://www.nrc.gov/info-finder/reactor/ - Select the reactor site from the alphabetical list, and then select inspection reports from the list of links.
For additional information:
Jan Strasma, Public Affairs Officer 630/829-9663 - ris2anrc.gov Victoria Mitlyng, Public Affairs Officer 630/829-9663 - vtm(anrc.aov Roland Lickus, Chief, State and Government Affairs 630/829-9660 - rml2(dnrc.gov US Nuclear Regulatory Commission Office of Public Affairs 2443 Warrenville Rd Lisle IL 60532