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Category:E-Mail
MONTHYEARML23331A8922023-11-22022 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) 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 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 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 ML22129A0132022-05-0606 May 2022 NRR E-mail Capture - Draft RAIs for Requests for Alternatives I4R-17, I4R-23, ISI-05-018, I6R-10 ML22271A0772022-05-0606 May 2022 NRR E-mail Capture - Final RAIs 9.1.2021 Constellation Relief Request 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 ML21154A0142021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21154A0132021-05-28028 May 2021 NRR E-mail Capture - Extension of Comment Period for the Exelon Generation Company, LLC License Transfer Application ML21144A2132021-05-24024 May 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding License Transfer Application ML21123A2442021-05-0303 May 2021 NRR E-mail Capture - NRC Acceptance Review of Braidwood/Byron/Ginna - Application to Address the Issues Identified in Westinghouse Documents NSAL-09-5 and NSAL-15-1 (L-2021-LLA-0066) ML21117A0442021-04-26026 April 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21084A2532021-03-24024 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Acceptance of License Transfer Application ML21062A0652021-03-0101 March 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Proposed Fleet Alternative to Documentation Requirements for Pressure Retaining Bolting ML21049A2572021-02-18018 February 2021 Request for Additional Information Byron/Dresden Proposed Changes to Site Emergency Plans to Support Post-Shutdown and Permanently Defueled Conditions (EPID-2020-LLA-0240 & EPID-2020-LLA-0237) ML21033A8552021-02-0202 February 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Alternative Request to Expand the Use ASME Codes Cases N-878 and N-880 ML21029A3302021-01-29029 January 2021 NRR E-mail Capture - Exelon Generation Company, LLC - Request for Additional Information Regarding Fleet Alternative Request to Use ASME Code Case N-885 ML21004A1452020-12-30030 December 2020 NRR E-mail Capture - Request for Additional Information Regarding Relief Requests Braidwood I4R-11 and Byron I4R-18 ML20350B5582020-12-14014 December 2020 NRR E-mail Capture - Exelon Generation Company, LLC -Alternative Request for Documentation of Replacement of Pressure Retaining Bolting ML20346A1012020-12-11011 December 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Request for an Alternative to Use ASME Code Case N-893 (EPIDs L-2020-LLR-0147 and L-2020-LLR-0148) ML20289A1142020-10-0909 October 2020 NRR E-mail Capture - Preliminary RAIs for LAR Regarding Non-conservative TS EDG Frequency Tolerance ML20266G3032020-09-22022 September 2020 NRR E-mail Capture - Exelon Generation Company, LLC - Fleet Request to Use Paragraph IWA-5120 of the 2017 Edition of the ASME B&PV Code, Section XI ML20261H4122020-09-11011 September 2020 NRR E-mail Capture - (External_Sender) License Amendment to Braidwood Station, Units 1 and 2, Technical Specification 3.7.9, Ultimate Heat Sink ML21145A0572020-08-18018 August 2020 NRR E-mail Capture - NRC Acceptance Review for Braidwood Relief Request I4R-11 2023-07-06
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Anne Boland - Fwd: Questions from Bwd semi-public mtg on tritium 12/12e From: Wayne Slawinski / Jig To: Anne Boland Date: Tue, Dec 13, 2005 5:07 PM
Subject:
- Fwd: Questions from Bwd semi-public mtg on tritium 12/12 Attachei are the Q & A's from the Braidwood meeting last evening as transcribed by Nick Shah. This was the one document you did not have.
Anne Boland - Questions from Bwd semi~-public rntg on tritiumn 12112 j ]g From: Nirodh Shah / 11 To: Jan Strasma Date: Tue,'Dec 13, 2005 4:02 AM Subjec-t: Questions from Bwd semi-public mtg on tritium 12/12 Jan, here are the questions asked by the local residents (and the answers provided by the licensee) that I wrote down during the meeting. Please take a look and let me know if you remember a different answer or if there were some questions that I missed.
thanks...
CC: Gregory Roach; John House; Richard Skokowski; Steven Orth
!Anne Boland - Questions from 12.wpdf Page 1 11 Anne Boland Questions from 12.wpd
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Page 11 Questions from 12/12 Tritium Meeting at Braidwood Unless stated, all answers are those provided by the licensee (John Moser).
- 1. When did the licensee dig the sampling wells ?
The wells were dug in Nov and Dec 2005.
- 2. Is there any tritium in the blowdown pipe today ?
There is no tritium in the pipe since liquid radwaste releases were suspended. The pipe contains normal blowdown from the lake.
- 3. What is being done with the liquid radwaste since the licensee has suspended radwaste releases ?
It is being stored on-site in tanks.
- 4. How much liquid radwaste is currently being stored on-site ?
About 80,000 gal.
- 5. How much liquid radwaste is normally discharged from the site ?
About 250,000 gal/year. The radwaste is held in tanks and periodically discharged into the blowdown line.
- 6. When did you start suspending liquid radwaste discharges ?
About 2 weeks ago.
- 7. Since you stopped discharging have you seen an Increase or decrease in the tritium levels ?
Have not collected many duplicate samples, as still doing characterization. However, samples to date show no significant variation.
- 8. Since you can't store forever, does this mean you have to fix this problem this year ?
We have obtained additional tanks and we are reviewing our options for future discharges.
- 9. What is the blowdown line made of ?
Stainless Steel.
- 10. Do you plan to do a pressure test on the blowdown line ? How long will your evaluation take ?
- Anne Boland - Questions from 12.wpd Page 2 1 Ann.Bo-and_ ue.sti f om 1 w _n- _ __ __- P- I 2_
irk A pressure test was one of several options considered, but we decided that acoustical monitoring of the piping was the best choice. We expect this monitoring to take 3-4 days and begin next Monday. If you wish, we will share the results of the monitoring with you.
- 11. If a vacuum valve fails where does the water go ? Into the water table ?
The water will collect in the valve pit and then overflow into the environment.
- 12. When did you start inspecting the blowdown line and valves ? Did you start after the 2000 event ?
We had performed walkdowns of the blowdown line and valves prior to the 2000 event, but we increased our inspection frequency after the event.
- 13. What is the normal concentration of tritium in the blowdown line ?
About 90,000 pCVL in 2000, but since then about 30,000 pCiL.
- 14. This concentration Is higher than the EPA limit. Is this ok ?
Yes. The release is diluted by the river. Before each release we monitor both river flow and level to assure adequate dilution.
- 15. How often did you test the liquid radwaste for tritium ?
Before each discharge and on a 30 day average.
- 16. What do you mean by "background levels ?"
Background levels are those levels of tritium that can be attributed to natural sources or as fallout from atomic bomb testing.
- 17. What is the EPA limit based on (dose to adult or child)? I have an 18 month old baby and expensive show horses--do I need to be concerned ?
The EPA limit is based on an adult. If you were to imbibe water having a tritium concentration equal to this limit, you would get a dose of 4 mrem/yr. The highest well sample measured so far, would equate to a dose of 0.3 mrem/yr.
- 18. Which well had the highest tritium sample ?
The highest well water sample result was 1524 pCVL. We cannot divulge whose well had that sample due to personal privacy concerns.
- 19. What should I do with my horses if you see >20,000 pCi/L in the residential well samples?
We do not expect to see these tritium levels in the samples.
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- Anne Boland - Questions from 12.WDd Pacie 31
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- 20. What testing frequency do you plan for the future ?
That has yet to be determined.
- 21. Do you plan to do sampling in the vicinity of the blowdown piping by the river ?
Yes.
- 22. What are the EPA standards/requirements for future testing ?
Don't know. We will get back to you.
- 23. Why are you concerned if the well samples are below the EPA drinking water limits ?
Even though the levels are below the EPA limits, because the tritium migrated offsite we are concerned.
- 24. Ifthe spill occurred in 1998, why are you concerned so many years after the fact ?
What did you do for the 1998 event ?
This question will be reviewed during the root cause evaluation.
- 25. Was any testing done for tritium during site construction ? What were the results
? Was any testing done for the 1998 spill ? Who was responsible for sampling the 1998 event?
Yes, testing was done in 1976, but I don't know the results. Don't know what was done for the 1998 spill. This will be evaluated as part of the root cause.
- 26. How many gallons of water were spilled in the 2000 event ? How come nobody noticed the leakage for so long ?
About 3 million gallons were spilled during the 2000 event. -Why it went undetected will also be evaluated as part of the root cause evaluation.
- 27. Did the leakage (1998 and 2000) occur from the 8 Inch diameter vent piping ?
No. The leakage occurred in the valve pit and escaped through the manhole.
- 28. What caused the failure of the vacuum breaker valve ? Is there a way to stop the water flow if the valve failed ?
A leak detection system was being evaluated, but does not appear to be very reliable.
- 29. What else Is In the water besides tritium? Is Co-60 present ?
Besides tritium, the samples were analyzed for radioactive particulates; none were found. 0o-60 is a particulate and, as stated, was not identified.