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Category:Drawing
MONTHYEARML21137A2072021-05-17017 May 2021 Byron/Braidwood Stations - Amendment 29 to Fire Protection Report, Chapter 2.3, Figures, Part 1 of 2-Redacted ML17255A8512017-09-0101 September 2017 Units 1 and 2 - Figures 700 - 749, Part 12 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 600 - 649, Part 10 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 600 - 649, Part 10 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 650 - 699, Part 11 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 650 - 699, Part 11 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 700 - 749, Part 12 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 700 - 749, Part 12 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 750 - 799, Part 13 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 750 - 799, Part 13 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 800 - 849, Part 14 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 800 - 849, Part 14 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 850 - 904, Part 15 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 850 - 904, Part 15 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 151 - 200, Part 1 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 151 - 200, Part 1 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 201 - 250, Part 2 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 201 - 250, Part 2 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 251 - 300, Part 3 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 251 - 300, Part 3 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 301 - 350, Part 4 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 301 - 350, Part 4 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 301 - 350, Part 5 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 301 - 350, Part 5 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 401 - 450, Part 6 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 401 - 450, Part 6 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 451 - 499, Part 7 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 451 - 499, Part 7 of 15 RS-17-119, Braidwood and Byron, Units 1 and 2 - Figures 500 - 549, Part 8 of 152017-09-0101 September 2017 Braidwood and Byron, Units 1 and 2 - Figures 500 - 549, Part 8 of 15 ML17255A8502017-09-0101 September 2017 Units 1 and 2 - Figures 650 - 699, Part 11 of 15 ML17255A8522017-09-0101 September 2017 Units 1 and 2 - Figures 750 - 799, Part 13 of 15 ML17255A8542017-09-0101 September 2017 Units 1 and 2 - Figures 850 - 904, Part 15 of 15 ML17255A8532017-09-0101 September 2017 Units 1 and 2 - Figures 800 - 849, Part 14 of 15 ML17255A8592017-09-0101 September 2017 Units 1 and 2 - Figures 251 - 300, Part 3 of 15 ML17255A8662017-09-0101 September 2017 Units 1 and 2 - Figures 500 - 549, Part 8 of 15 ML17255A8652017-09-0101 September 2017 Units 1 and 2 - Figures 451 - 499, Part 7 of 15 ML17255A8612017-09-0101 September 2017 Units 1 and 2 - Figures 301 - 350, Part 4 of 15 RS-17-119, Units 1 and 2 - Figures 550 - 599, Part 9 of 152017-09-0101 September 2017 Units 1 and 2 - Figures 550 - 599, Part 9 of 15 ML17255A8492017-09-0101 September 2017 Units 1 and 2 - Figures 600 - 649, Part 10 of 15 ML17255A8632017-09-0101 September 2017 Units 1 and 2 - Figures 301 - 350, Part 5 of 15 ML17255A8572017-09-0101 September 2017 Units 1 and 2 - Figures 201 - 250, Part 2 of 15 ML17255A8642017-09-0101 September 2017 Units 1 and 2 - Figures 401 - 450, Part 6 of 15 ML17255A8552017-09-0101 September 2017 Units 1 and 2 - Figures 151 - 200, Part 1 of 15 RS-14-338, Byron/Braidwood Nuclear Stations, Updated Final Safety Analysis Report (Ufsar), Revision 15, Chapter 2.0 Figures - Braidwood - Part 2 of 22014-12-15015 December 2014 Byron/Braidwood Nuclear Stations, Updated Final Safety Analysis Report (Ufsar), Revision 15, Chapter 2.0 Figures - Braidwood - Part 2 of 2 ML15055A3902014-12-15015 December 2014 Byron/Braidwood Nuclear Stations, Updated Final Safety Analysis Report (Ufsar), Revision 15, Chapter 2.0 Figures - Braidwood - Part 2 of 2 ML13154A2182013-05-29029 May 2013 License Renewal Boundary Drawings ML0609605122006-03-17017 March 2006 Figure 1 Site Plan and Well Locations Braidwood Station ML0609605042006-03-17017 March 2006 Drawing Showing Braidwood Station, Essex Road, Blowdown Structure at Rive Screen House and 11 Ocw Numbered Items ML0609605022006-03-17017 March 2006 Figure 2.5-25 Geologic Section H-H Braidwood Station Updated Final Safety Analysis Report ML0610204282006-01-31031 January 2006 Drawing Figure 2, Draft Average Groundwater Contours Shallow - January 2006 ML0618400862006-01-30030 January 2006 Figure 5 - Estimated Tritium Results Deep Groundwater Zone - Braidwood Station ML0618400872006-01-30030 January 2006 Figure 4 - Estimated Tritium Results Shallow Groundwater Zone - Braidwood Station ML0610705292006-01-30030 January 2006 Drawing 1, Groundwater Monitoring Locations ML0610705262006-01-30030 January 2006 Drawing 6, Site Specific Hydrogeologic Profile January 2006 (A-A) ML0610106882005-12-16016 December 2005 Tritium Concentrations in the Deeper Monitoring Wells ML0610106762005-12-16016 December 2005 Potential Source Release and Transport Theories ML0610106942005-12-16016 December 2005 Schematic of Regional Hydrogeology ML0618400692005-12-0909 December 2005 E-mail from Habighorst to Lynch, Braidwood Tritium - Recent Contamination Contours, Etc ML0618400592005-12-0808 December 2005 E-mail from Orth to Braidwood Communication Team, Braidwood Tritium - Recent Contamination Contours, Etc ML0609706062005-12-0606 December 2005 Draft - Figure Version 2 Select Locations - Hand Contours December 6, 2005 Braidwood Station ML0609706052005-12-0606 December 2005 Figure Estimated Tritium Concentrations December 6, 2005, Braidwood Station ML0609706032005-12-0606 December 2005 Figure Estimated Tritium Concentration December 6, 2005, Braidwood Station ML0609706022005-12-0606 December 2005 Figure Estimated Tritium Concentrations December 6, 2005, Braidwood Station 2021-05-17
[Table view] Category:E-Mail
MONTHYEARML25024A0122025-01-23023 January 2025 NRR E-mail Capture - Multiple Dockets - Request for Additional Information (Insert Description of Request) ML24362A0022024-12-26026 December 2024 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, Calvert Cliffs, and Ginna - Adoption of TSTF-475 (L-2024-LLA-0164) ML24325A4222024-11-20020 November 2024 NRR E-mail Capture - Byron/Braidwood Reschedule and Revised Resource Estimate for Spent Fuel Pool Criticality Amendment - L-2023-LLA-0136 ML24298A0202024-10-24024 October 2024 NRR E-mail Capture - Braidwood Station, Units 1 and 2, Byron Station, Units 1 and 2, Relief Request I4R-19 and I4-26, Associated with the Fourth and Fifth Inservice Inspection Intervals ML24282A7042024-10-0808 October 2024 NRR E-mail Capture - Acceptance Reviews of Relief Requests Associated with the Fifth Inservice Inspection Interval at Byron and Braidwood Stations 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) ML24197A0162024-07-12012 July 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - License Amendment Request to Adopt TSTF-591 ML24180A0042024-06-28028 June 2024 NRR E-mail Capture - Acceptance Review for Braidwood and Byron - Request for Exemption from 10 CFR 50.46 and Appendix K (L-2024-LLE-0019) ML24180A0032024-06-28028 June 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment for Transition to Framatome Gaia Fuel (L-2024-LLA-0072) ML24176A0182024-06-20020 June 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment to Remove Extraneous Detail Related to Beacon ML24170A3912024-06-18018 June 2024 NRR E-mail Capture - Revision of Estimated Hours to Complete Review of Byron/Braidwood Amendment to Revise TS 3.7.15, 3.7.16, and 4.3.1 (L-2023-LLA-0136) ML24141A2452024-05-20020 May 2024 NRR E-mail Capture - NRC Acceptance Review of Byron/Braidwood Amendment to Delete Technical Specification 5.6.5.b.5 (L-2024-LLA-0055) 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) ML24122B5072024-05-0101 May 2024 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of License Amendment Request to Adopt TSTF-591, Revision 0 ML24053A3382024-02-22022 February 2024 NRR E-mail Capture - Final RAI - Constellation Energy Generation, LLC - Fleet Request - Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML24030A0022024-01-30030 January 2024 NRR E-mail Capture - NRC Acceptance Review for Braidwood Station, Units 1 and 2, Proposed Alternative to the Distribution Requirements of ASME Code Table IWC-2411-1 for the Steam Generators ML24039A0412024-01-30030 January 2024 NRR E-mail Capture - Request for Additional Information Regarding Braidwood Request for Alternative (I4R-18) ML23331A8922023-11-22022 November 2023 Supplement - Braidwood Security Rule Exemption Request – ISFSI Docket No. Reference ML23321A2012023-11-17017 November 2023 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request - Acceptance of Proposed Alternative for Examination of Pressurizer Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Vessel Welds (L-2023-LLR-0062) ML23311A1692023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Exam Categories B-B, B-D, and C-A SG Pressure Retaining Welds and Full Penetration Welded Nozzles (L-2023-LLR-0055 and L-2023-LLR-00 ML23311A1682023-11-0707 November 2023 NRR E-mail Capture - Constellation - Fleet Request - Acceptance of Proposed Alternative for Examinations of Examination Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections (L-2023-LLR-0053 and L-2023-LLR-005 ML23304A0222023-10-30030 October 2023 NRR E-mail Capture - Final RCI - Constellation Energy Generation, LLC - Braidwood 1 & 2 - Exemption from Security Rule (L-2023-LLE-0030) ML23187A0092023-07-0606 July 2023 NRR E-mail Capture - NRC Acceptance Review of Byron and Braidwood Request to Adopt TSTF-370 ML23103A4692023-04-12012 April 2023 NRR E-mail Capture - NRC Acceptance Review of Braidwood Request for Amendment to Revise TS 3.7.9 ML23069A0332023-03-0606 March 2023 Email to K. Lueshen Byron and Braidwood Commitment 10 - Request for Additional Information Set 1 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 NRC-2100-2022, EN 55999 Valcor Coil Shell Assemblies Final Notification (004)2022-09-12012 September 2022 EN 55999 Valcor Coil Shell Assemblies Final Notification (004) ML22255A0132022-09-0909 September 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, Calvert Cliffs, Ginna - License Amendment Request to Adopt TSTF-577 ML22200A0782022-07-19019 July 2022 NRR E-mail Capture - Constellation Energy Generation, LLC - Fleet Request to Use Honeywell Mururoa V4F1 R Supplied Air Suits NRC 2110-2022, EN 55999 - Valcor Engineering Corporation (009)2022-07-18018 July 2022 EN 55999 - Valcor Engineering Corporation (009) ML22189A0602022-07-0707 July 2022 NRR E-mail Capture - Draft RAI for Byron/Braidwood TSTF-501 ML22136A2722022-05-16016 May 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood and Byron Adoption of TSTF-501 ML22271A0772022-05-0606 May 2022 NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request ML22129A0132022-05-0606 May 2022 NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10 ML22116A0242022-04-25025 April 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood, Byron, and Ginna Request to Adopt TSTF-246 ML22105A0722022-04-15015 April 2022 NRR E-mail Capture - Braidwood/Byron Verbal Authorization for Proposed Alternative I4R-15/I4R-21 ML22091A0852022-04-0101 April 2022 NRR E-mail Capture - Braidwood and Byron - Final RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) ML22088A1562022-03-0202 March 2022 NRR E-mail Capture - Byron, Braidwood, Calvert Cliffs, and Ginna - Non-acceptance of Application to Revise Technical Specifications 5.6.5.b, the Core Operating Limits Report (COLR) ML22091A0842022-02-24024 February 2022 NRR E-mail Capture - Braidwood and Byron - Withdrawal of Draft RAI Regarding Proposed Alternative for Various Pressurizer Welds (EPID L-2021-LLR-0035 and 0036) 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 ML23089A0172022-01-0505 January 2022 NRR E-mail Capture - NRC Acceptance Review of Braidwood - Proposed Alternative for Examinations of Categories B-B, B-D, and C-A SG Welds and Nozzles ML21301A0672021-10-28028 October 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-541 ML21272A1492021-09-29029 September 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood and Byron - Proposed Alternative for Examinations of Category C-B Steam Generator Nozzle-to-Shell Welds and Nozzle Inside Radius Sections ML21256A1902021-09-10010 September 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21252A0172021-09-0303 September 2021 NRR E-mail Capture - NRC Acceptance Review - Braidwood - License Amendment to Revise Technical Specification 3.7.9, Ultimate Heat Sink ML21252A0042021-08-26026 August 2021 NRR E-mail Capture - NRC Acceptance Review - Braidwood/Byron/Clinton - Adoption of TSTF-273, Safety Function Determination Program Clarifications ML21215A3502021-08-0303 August 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Amendment Request to Adopt TSTF-554 ML21189A1602021-07-0808 July 2021 NRR E-mail Capture - Request for Additional Information - Braidwood, Byron, and Ginna - Amendment to Address the Issues in Westinghouse NSALs ML21154A0162021-06-0202 June 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood - Proposed Alternative for Exam of Pzr Circumferential and Longitudinal Shell-to-Head Welds and Nozzle-to-Shell Welds ML21154A0112021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application 2025-01-23
[Table view] |
Text
Stephen Klementowicz - Braidwood Tritium -- Recent Contamination Contours, etc.
Page 1]
From:
Steven Orth To:
Braidwood Communications Team Date:
12/8/05 8:37AM
Subject:
Braidwood Tritium -- Recent Contamination Contours, etc.
Greetings, The licensee provided the attached map this morning, which provides a cumulative diagram of onsite and offsite sample results. However, no residential wells are included.
Residential Wells -
Region III contacted four of the residents whose wells were sampled by the licensee to offer to provide an independent sample and analysis. Three of the four have accepted the Region III offer, and samples are being obtained (yesterday afternoon and this morning). The person who's well (shallow well < 30') had the positive H-3 result of about 1150 picoCuries per liter declined our offer. From our conversation, he appeared to be very content with the licensee's communications and the split sample that the NRC had been provided.
Licensee Sampling Plan -- Licensee has reported to Region III that it will continue well sampling in all directions to ensure that they have identified the extent of the contamination. In addition, they are also installing wells to characterize the vertical component of the aquifer. From this information, they will be developing options for potential remediation.
Meetings -- The licensee has scheduled a meeting on Monday, December 12 at the site (7:00 pm Central Time) to discuss the matter with nearby residents. This meeting has not been opened to the general pubic. The meeting attendees include the licensee, residents who have been contacted by the licensee, and State personnel (Illinois EPA, EMA, Public Health).
PN -- Region Ill issued an update to the PN, which is also attached.
Thank you, Steven Orth US NRC Region III
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A VACUUM BREAKER LOCATION AND IDENTIFIER t TEMPOARY MONITORNGM WELL LOCATION AMC IDENTIFIER P-I 0 TEMPORARY MONITORRB4O WELL LOCATION ANIDIENTIFIER J2.4041ITRITIUJM RESULT IN GRCLOWNIATER TRITIUM REXULTS 50000 (PICOCUXRRIEXJTERI TRITIUM RESULTS 40,000 TRITIUM RESULTS IS 005 TRITIUM RESULTS X0XON TRITIUM RESULTS 9.000 TRITIUM RESULTS 3.000 RAFT figure ESTIMATED TRITIUM CONCENTRATIONS DECEMBER 6,2005 BRAIDWOOD STATION anfavlf Snb1
Stephen Klementowicz - PNO-RIII-05-016A.wpd Page 111 Stephen Klernentowicz
- PNO-RIII-05-01 6A.wpd Page 1]
December 7, 2005 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE --
PNO-RIII-05-016A This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region III staff on this date.
Facility Licensee Emergency Classification Braidwood 1 and 2
__ Notification of Unusual Event Exelon Generation Co.
__ Alert Braceville, Illinois Site Area Emergency Docket: 50-456 and 50-457 General Emergency License: NPF-72; NPF-77 X
Not Applicable
SUBJECT:
POTENTIAL OFF-SITE MIGRATION OF TRITIUM CONTAMINATION (UPDATE)
DESCRIPTION:
On December 6, 2005, the licensee notified the NRC that low levels of tritium had been found in a drinking water well at an off-site residence as it continues to evaluate and characterize the migration of tritium in groundwater near the plant. Tritium, which is the radioactive form of hydrogen, occurs in small quantities in nature and is also produced during reactor operations.
The licensee's initial evaluation indicated that the tritium in the groundwater was a result of past leakage from a pipe which carries normally non-radioactive circulating water discharge to the Kankakee River, about five miles from the site. Several millions gallons of water leaked from the discharge pipe in 1998 and 2000. The discharge pipe is also used for planned liquid radioactive effluent releases with the effluent mixing with the circulating water being discharged.
(Braidwood, like most nuclear plants, releases small concentrations of radioactive liquids under controlled and monitored conditions and within limits imposed by the NRC.) The licensee is continuing to evaluate the tritium contamination to assure they have identified all possible leakage paths from the circulating water discharge line.
Preliminary sampling results from the drinking water well at a residence about 1/4 mile from the site boundary showed a tritium level of 1,150 picocuries per liter, which is a small fraction of the EPA drinking water standard of 20,000 picocuries per liter. Samples have been collected at several other residential drinking water wells in the area and no measurable levels of tritium above background were found, according to licensee data.
Measurable levels of tritium have been found offsite in shallow monitoring wells drilled last week to assess the tritium movement and in a small pond. The offsite sampling program was initiated after the licensee has measured tritium levels in shallow onsite monitoring wells as high as 58,000 picocuries per liter. The highest level found in an offsite shallow monitoring well is CONTACTS:
John House Steven Orth
Stephen Klementowicz - PNO-RIII-05-016A.wpd Page 2:
630/829-9824 630/829-9827
Stephen Klementowicz - PNO-RIII-05-016A.wpd Page 31i PNO-RIII-05-016A 34,000 picocuries per liter. These levels of tritium are a small fraction of NRC limits for radioactive effluent releases to the environment and do not represent a health and safety hazard.
Region Ill dispatched a radiation specialist to the site on December 1, 2005, to assist the NRC resident inspectors in their review of the circumstances surrounding the elevated measurements and the licensee's activities addressing the elevated tritium levels. The NRC has also split samples with the licensee for both drinking water wells and monitoring wells and sent the samples to an NRC contract laboratory for independent analysis. The first results are expected on December 9, 2005. Additional NRC independent samples are planned, and this preliminary notification will be updated as NRC analytical results become available.
The licensee is continuing to evaluate the tritium movement and is developing plans for further monitoring and possible mitigation measures. The licensee issued a news release on December 1, 2005, and has contacted affected property owners as well as State and local officials.
Region III was notified of the initial elevated tritium measurements on November 30, 2005. The information in this preliminary notification has been reviewed with licensee management and is current as of 11 a.m. on December 7, 2005.