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Category:INTERNAL OR EXTERNAL MEMORANDUM
MONTHYEARML20217N4611999-10-22022 October 1999 Forwards Revised Pages 11,14 & 71 of Rept & Order Dtd 990608.Revs Are Textual Changes to Clarify & Confirm Action Taken by Nuclear Decommissioning Financing Committee ML20216F5061999-09-16016 September 1999 Forwards Monthly Rept on Status of 10CFR2.206 Petitions as of 990831.During August,Director'S Decision (DD-99-10) on Seabrook Issued & Petition Closed.Six Petitions Open,Five in NRR & One in Nmss.Attachment 2 Withheld ML20210K4141999-08-0404 August 1999 Forwards Signed Originals of DD Issued Under 10CFR2.206. Without Encl ML20210C1631999-07-19019 July 1999 Forwards Monthly Rept Which Gives Status of 10CFR2.206 Petitions as of 990630.Six Open NRR,1 OE & 2 NMSS Petitions Available.Attachment 2 Withheld ML20206U9631999-05-18018 May 1999 Notification of Significant Licensee Meeting 99-27 with Util on 990602 to Discuss Predecisional Enforcement Conference - NRC Investigation ML20206R1691999-05-0707 May 1999 Rev 1 to Notification of 990602 Significant Licensee Meeting with Listed Attendees in King of Prussia,Pa Re Predecisional Enforcement Conference Concerning NRC Investigation.Rev Sighted Date Change ML20207G5681999-03-0808 March 1999 Informs That Commission Memorandum & Order (CLI-99-06), Issued on 990305,appointed TS Moore as Presiding Officer for Seabrook License Transfer Proceeding.With Certificate of Svc.Served on 990309 ML20197H1211998-12-0808 December 1998 Forwards Exam Rept with as Given Written Exam for Test Administered at Facility on 981019-23 ML20195C7641998-11-13013 November 1998 Forwards Pages That Were Faxed to J Peschel on 981113 in Preparation for Telcon That Will Be Scheduled Wk of 981116. Info in Attached Pages Based on Info Obtained from Licensee & Includes Specific Subjects to Be Discussed with Licensee ML20153E4211998-09-24024 September 1998 Informs That Ofc of Secretary Experienced Problems with Listed e-mail Address.Alternate Mailbox Has Been Created in Effort to Maintain Electronic Mailbox for Parties Filing by e-mail.With Certificate of Svc.Served on 980924 ML20153G0231998-09-24024 September 1998 Informs That Office of Secretary Experienced Problems with Dedicated e-mail Address.In Effort to Maintain Electronic Mailbox for Parties Filing by e-mail,alternate Mailbox Created.With Certificate of Svc.Served on 980924 ML20239A3361998-09-0404 September 1998 Forwards Request for Hearing & Submitted by RA Backus on Behalf of Seacoast Anti-Pollution League & New England Coalition on Nuclear Pollution Re Proposed License Amend for Seabrook Unit 1 ML20249A6691998-06-15015 June 1998 Forwards Request for Hearing, & Submitted by RA Backus on Behalf of Seacoast Anti-Pollution League. Petition Was Filed in Response to Notice of Proposed Determination by Staff ML20217M7161998-04-0303 April 1998 Notification of 980219 Meeting W/North Atlantic Energy Svc Corp in Rockville,Md to Discuss Great Power Corp Response to RAI Re Decommissioning Funding Assurance ML20216G5891998-03-0606 March 1998 Notification of Significant Licensee Meeting 98-25 W/Util on 980324 Predecisional Enforcement Conference to Discuss Apparent Violation in Insp Rept 50-443/97-08 (EA-98-073) ML20198S4161998-02-26026 February 1998 Submits Impact of New Decommissioning Funding Rule on Great Bay.Staff Intends to Propose Some Addl Mechanisms That Appear to Offer Assurance Equivalent to What Existing Mechanisms Provide ML20203B9021998-02-0909 February 1998 Notification of 980219 Meeting W/North Atlantic Energy Service Corp in North Bethesda,Md to Discuss Proposed License Amends to Support Current Operating Cycle & Plans for Conversion to Improved Standard TSs ML20199E8881998-01-23023 January 1998 Notification of 980204 Mgt Meeting W/North Atlantic Energy Svc Corp in Rockville,Maryland to Discuss SALP for Period Covering 960505-971206 as Documented in SALP Rept 50-443/97-99 ML20198N0191998-01-0909 January 1998 Forwards Draft Rept, ,to Docket for Seabrook Station,Unit 1.Draft Rept Provides Licensee Preliminary Root Cause Analysis for Leaks in Piping of B Train of RHR System.Leakage Reported by Licensee on 971205 ML20203D2971997-12-0909 December 1997 Notification of 971216 Meeting W/Utils in Rockville,Md to Discuss Decommissioning Funding Assurance ML20211E7301997-09-23023 September 1997 Notification of 971028 Meeting W/North Atlantic Energy Service Corp in Rockville,Md to Discuss Approach for Extending Surveillances to 24-month Intervals ML20217B0471997-09-11011 September 1997 Notification of 970924 Meeting W/Eastern Utility Associates & North Atlantic Energy Service Corp in Rockville,Md to Discuss Proposed Electric Generating Asset Divestiture Plan ML20141D8191997-06-26026 June 1997 Forward 970624 Memo from P Milano to C Hehl Re Response to TIA Concerning Vantage 5H ZIRLO Fuel Problems at Plant,To Be Placed on Docket 50-443 & Made Publicly Available ML20141C9921997-06-24024 June 1997 Responds to 970605 TIA Re VANTAGE-5H ZIRLO Fuel Problems at Seabrook.Staff Has Not Identified Any Restart Concerns Re Reloading of VANTAGE-5H ZIRLO Fuel Used During Cycle 5 & W/Fresh VANTAGE-5H ZIRLO Fuel for Cycle 6 at Plant ML20136C1031997-03-0606 March 1997 Forwards Correspondence Transmitted Via Internet to J Zwolinski from P Blanch During 970102-31.Requests Correspondence Be Placed in PDR ML20134H7931996-11-0606 November 1996 Partially Deleted Memo Re 950502 Meeting W/Northeast Utilities Re Listed Topics ML20129K2561996-11-0505 November 1996 Notification of Significant Licensee Meeting 96-109 W/Listed Attendees on 961202-03 in Philadelphia,Pa to Provide Training,Resolve Interagency Exercise Scheduling Conflicts & Discuss Current Issues in Emergency Preparedness ML20134D7161996-10-24024 October 1996 Requests That Encl Internet Mail Received from PM Blanch,Dtd Through 960930,be Placed in Pdr.No Distribution Outside of PDR Necessary ML20129C0271996-10-11011 October 1996 Notification of 961030 Public Meeting of Nuclear Decommissioning Committee ML20129E2011996-09-25025 September 1996 Notification of 960930 Meeting W/Util in Rockville,Md to Discuss Status of Great Bay Power Corp as Electric Util ML20147J3281996-07-10010 July 1996 Discusses Staff Response to SRM M960612, Briefing on Part 100 Final Rule on Reactor Site Criteria. Staff Believes That Draft Final Rule Language May Be Misinterpreted as Implicity Overruling in Conflict W/Seabrook Decision ML20129D1831996-07-10010 July 1996 Informs of 960716 Visit W/B Patricelli,Cm Cleveland & Gw Davis of Northeast Utilities,Inc Re Introductions & Discussions of Millstone Point & Haddam Neck Issues ML20134B6681995-10-13013 October 1995 Forwards Briefing Package on Status of Listed Plant Units,As Background for Visit by Northeast Utils on 951018-19 ML20087B8531995-07-25025 July 1995 Forwards State of Nh Nuclear Decommissioning Finance Committee Third Supplemental Order Approving Revised Funding Schedule by North Atlantic Energy Svc Corp ML20134B5861995-06-0101 June 1995 Forwards Briefing Package on Status of Plants as Background for Util Visit on 950608 ML20134B5721995-04-26026 April 1995 Forwards Briefing Package on Status of Listed Plants,As Background for Visit by Util on 950502.Supporting Documentation Encl ML20078S9391994-12-23023 December 1994 Forwards State of Nh Nuclear Decommissioning Finance Committee (Ndfc) Ndfc 93-1, Brief of Nh Public Utilities Commission Staff NUREG-1299, Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl1994-06-29029 June 1994 Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl ML20134B4931994-02-16016 February 1994 Forwards Updated Briefing Package for Visit by Util Officials W/Nrc Chairman,Commission,Edo,Director OI & Director Oe.Requests Replacement of Encls 1 & 2 in 940215 Package,Retaining Supporting Attachment 1 Documentation ML20059J8371994-01-0606 January 1994 Notification of Significant Licensee Meeting 94-05 W/Util Emergency Preparedness Mgt Working Group on 940210 ML20058L9281993-12-15015 December 1993 Notification of 931221 Meeting W/North Atlantic Energy Svc Corp,Yaec & Intl Tech Svcs,Inc in Rockville,Md to Discuss Application of YAEC-1856P Methodology to Plant ML20058C9681993-11-19019 November 1993 Notification of Significant Licensee Meeting 93-147 W/Util on 931208 Re SALP Mgt Meeting for Period of 920301-930828 ML20059J2321993-11-0505 November 1993 Forwards Safety Evaluation Accepting LAR 92-14,submitted Via for TS Changes to Allow Independent Fixed Incore Detector Sys at Facility to Be Used for Periodic in-core Power Distribution TS SRs ML20128K8601993-02-0202 February 1993 Notification of Significant Licensee Meeting 93-13 W/Util on 930210 to Discuss General Engineering Programs ML20126K1461993-01-0505 January 1993 Notification of 930106 Meeting W/Util in Rockville,Md to Discuss Transfer of Control of Interest of Eua Power in Plant ML20126J6211992-12-24024 December 1992 Forwards LER 88-009-01 Issued on 921113,discussing Increased Thrust Bearing Loading for RHR Pumps When Pumps Run at Reduced Flows.Concern Raised That Inservice Testing May Not Detect Problem Soon Enough to Avoid Failure ML20125B4461992-11-30030 November 1992 Notification of 921203 Licensee Meeting in King of Prussia, PA to Discuss Auxiliary Operator re-licensing Plans ML20128C2131992-11-16016 November 1992 Notification of Postponement of 921124 Meeting W/Util in King of Prussia,Pa to Discuss Process for Reissuing Reactor Operator Licenses Terminated After Auxiliary Operator Performance Review ML20128C0271992-11-13013 November 1992 Notification of Significant Licensee Meeting 92-168 W/Util on 921124 to Discuss Process for Reissuing RO Licenses That Have Been Terminated After an AO Performance Review ML20097B5821992-05-27027 May 1992 Recommends That Methodology Specified in Order 20,475 Be Revised to Require Util to Include in Base Rates,Amounts Required by Nuclear Decommission Financing Committee 17th Supplemental Order 1999-09-16
[Table view] Category:MEMORANDUMS-CORRESPONDENCE
MONTHYEARML20217N4611999-10-22022 October 1999 Forwards Revised Pages 11,14 & 71 of Rept & Order Dtd 990608.Revs Are Textual Changes to Clarify & Confirm Action Taken by Nuclear Decommissioning Financing Committee ML20217J8951999-10-21021 October 1999 Staff Requirements Memo Re Affirmation Session on 991021, Rockville,Md (Open to Public Attendance) ML20216F5061999-09-16016 September 1999 Forwards Monthly Rept on Status of 10CFR2.206 Petitions as of 990831.During August,Director'S Decision (DD-99-10) on Seabrook Issued & Petition Closed.Six Petitions Open,Five in NRR & One in Nmss.Attachment 2 Withheld ML20210K4141999-08-0404 August 1999 Forwards Signed Originals of DD Issued Under 10CFR2.206. Without Encl ML20210C1631999-07-19019 July 1999 Forwards Monthly Rept Which Gives Status of 10CFR2.206 Petitions as of 990630.Six Open NRR,1 OE & 2 NMSS Petitions Available.Attachment 2 Withheld ML20206U9631999-05-18018 May 1999 Notification of Significant Licensee Meeting 99-27 with Util on 990602 to Discuss Predecisional Enforcement Conference - NRC Investigation ML20206R1691999-05-0707 May 1999 Rev 1 to Notification of 990602 Significant Licensee Meeting with Listed Attendees in King of Prussia,Pa Re Predecisional Enforcement Conference Concerning NRC Investigation.Rev Sighted Date Change ML20207G5681999-03-0808 March 1999 Informs That Commission Memorandum & Order (CLI-99-06), Issued on 990305,appointed TS Moore as Presiding Officer for Seabrook License Transfer Proceeding.With Certificate of Svc.Served on 990309 ML20207F5021999-03-0505 March 1999 Staff Requirements Memo Re 990305 Affirmation Session, Rockville,Md (Open to Public Attendance).Commission Approved Memo & Order Which Granted Util Intervention Petition & Request for Hearing ML20197H1211998-12-0808 December 1998 Forwards Exam Rept with as Given Written Exam for Test Administered at Facility on 981019-23 ML20195C7641998-11-13013 November 1998 Forwards Pages That Were Faxed to J Peschel on 981113 in Preparation for Telcon That Will Be Scheduled Wk of 981116. Info in Attached Pages Based on Info Obtained from Licensee & Includes Specific Subjects to Be Discussed with Licensee ML20153G0231998-09-24024 September 1998 Informs That Office of Secretary Experienced Problems with Dedicated e-mail Address.In Effort to Maintain Electronic Mailbox for Parties Filing by e-mail,alternate Mailbox Created.With Certificate of Svc.Served on 980924 ML20153E4211998-09-24024 September 1998 Informs That Ofc of Secretary Experienced Problems with Listed e-mail Address.Alternate Mailbox Has Been Created in Effort to Maintain Electronic Mailbox for Parties Filing by e-mail.With Certificate of Svc.Served on 980924 ML20239A3361998-09-0404 September 1998 Forwards Request for Hearing & Submitted by RA Backus on Behalf of Seacoast Anti-Pollution League & New England Coalition on Nuclear Pollution Re Proposed License Amend for Seabrook Unit 1 ML20249A6691998-06-15015 June 1998 Forwards Request for Hearing, & Submitted by RA Backus on Behalf of Seacoast Anti-Pollution League. Petition Was Filed in Response to Notice of Proposed Determination by Staff ML20217M7161998-04-0303 April 1998 Notification of 980219 Meeting W/North Atlantic Energy Svc Corp in Rockville,Md to Discuss Great Power Corp Response to RAI Re Decommissioning Funding Assurance ML20216G5891998-03-0606 March 1998 Notification of Significant Licensee Meeting 98-25 W/Util on 980324 Predecisional Enforcement Conference to Discuss Apparent Violation in Insp Rept 50-443/97-08 (EA-98-073) ML20198S4161998-02-26026 February 1998 Submits Impact of New Decommissioning Funding Rule on Great Bay.Staff Intends to Propose Some Addl Mechanisms That Appear to Offer Assurance Equivalent to What Existing Mechanisms Provide ML20203B9021998-02-0909 February 1998 Notification of 980219 Meeting W/North Atlantic Energy Service Corp in North Bethesda,Md to Discuss Proposed License Amends to Support Current Operating Cycle & Plans for Conversion to Improved Standard TSs ML20199E8881998-01-23023 January 1998 Notification of 980204 Mgt Meeting W/North Atlantic Energy Svc Corp in Rockville,Maryland to Discuss SALP for Period Covering 960505-971206 as Documented in SALP Rept 50-443/97-99 ML20198N0191998-01-0909 January 1998 Forwards Draft Rept, ,to Docket for Seabrook Station,Unit 1.Draft Rept Provides Licensee Preliminary Root Cause Analysis for Leaks in Piping of B Train of RHR System.Leakage Reported by Licensee on 971205 ML20203D2971997-12-0909 December 1997 Notification of 971216 Meeting W/Utils in Rockville,Md to Discuss Decommissioning Funding Assurance ML20211E7301997-09-23023 September 1997 Notification of 971028 Meeting W/North Atlantic Energy Service Corp in Rockville,Md to Discuss Approach for Extending Surveillances to 24-month Intervals ML20217B0471997-09-11011 September 1997 Notification of 970924 Meeting W/Eastern Utility Associates & North Atlantic Energy Service Corp in Rockville,Md to Discuss Proposed Electric Generating Asset Divestiture Plan ML20141D8191997-06-26026 June 1997 Forward 970624 Memo from P Milano to C Hehl Re Response to TIA Concerning Vantage 5H ZIRLO Fuel Problems at Plant,To Be Placed on Docket 50-443 & Made Publicly Available ML20141C9921997-06-24024 June 1997 Responds to 970605 TIA Re VANTAGE-5H ZIRLO Fuel Problems at Seabrook.Staff Has Not Identified Any Restart Concerns Re Reloading of VANTAGE-5H ZIRLO Fuel Used During Cycle 5 & W/Fresh VANTAGE-5H ZIRLO Fuel for Cycle 6 at Plant ML20136C1031997-03-0606 March 1997 Forwards Correspondence Transmitted Via Internet to J Zwolinski from P Blanch During 970102-31.Requests Correspondence Be Placed in PDR ML20134H7931996-11-0606 November 1996 Partially Deleted Memo Re 950502 Meeting W/Northeast Utilities Re Listed Topics ML20129K2561996-11-0505 November 1996 Notification of Significant Licensee Meeting 96-109 W/Listed Attendees on 961202-03 in Philadelphia,Pa to Provide Training,Resolve Interagency Exercise Scheduling Conflicts & Discuss Current Issues in Emergency Preparedness ML20134D7161996-10-24024 October 1996 Requests That Encl Internet Mail Received from PM Blanch,Dtd Through 960930,be Placed in Pdr.No Distribution Outside of PDR Necessary ML20129C0271996-10-11011 October 1996 Notification of 961030 Public Meeting of Nuclear Decommissioning Committee ML20129E2011996-09-25025 September 1996 Notification of 960930 Meeting W/Util in Rockville,Md to Discuss Status of Great Bay Power Corp as Electric Util ML20147J3281996-07-10010 July 1996 Discusses Staff Response to SRM M960612, Briefing on Part 100 Final Rule on Reactor Site Criteria. Staff Believes That Draft Final Rule Language May Be Misinterpreted as Implicity Overruling in Conflict W/Seabrook Decision ML20129D1831996-07-10010 July 1996 Informs of 960716 Visit W/B Patricelli,Cm Cleveland & Gw Davis of Northeast Utilities,Inc Re Introductions & Discussions of Millstone Point & Haddam Neck Issues ML20134B6681995-10-13013 October 1995 Forwards Briefing Package on Status of Listed Plant Units,As Background for Visit by Northeast Utils on 951018-19 ML20087B8531995-07-25025 July 1995 Forwards State of Nh Nuclear Decommissioning Finance Committee Third Supplemental Order Approving Revised Funding Schedule by North Atlantic Energy Svc Corp ML20134B5861995-06-0101 June 1995 Forwards Briefing Package on Status of Plants as Background for Util Visit on 950608 ML20134B5721995-04-26026 April 1995 Forwards Briefing Package on Status of Listed Plants,As Background for Visit by Util on 950502.Supporting Documentation Encl ML20078S9391994-12-23023 December 1994 Forwards State of Nh Nuclear Decommissioning Finance Committee (Ndfc) Ndfc 93-1, Brief of Nh Public Utilities Commission Staff NUREG-1299, Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl1994-06-29029 June 1994 Forwards Continuation of Curtiss Papers to Be Filed Under Commission Correspondence in Pdr.Advanced Copy Sent to Pdr. List of Documents Included in Four Boxes Encl ML20134B4931994-02-16016 February 1994 Forwards Updated Briefing Package for Visit by Util Officials W/Nrc Chairman,Commission,Edo,Director OI & Director Oe.Requests Replacement of Encls 1 & 2 in 940215 Package,Retaining Supporting Attachment 1 Documentation ML20059J8371994-01-0606 January 1994 Notification of Significant Licensee Meeting 94-05 W/Util Emergency Preparedness Mgt Working Group on 940210 ML20058L9281993-12-15015 December 1993 Notification of 931221 Meeting W/North Atlantic Energy Svc Corp,Yaec & Intl Tech Svcs,Inc in Rockville,Md to Discuss Application of YAEC-1856P Methodology to Plant ML20058C9681993-11-19019 November 1993 Notification of Significant Licensee Meeting 93-147 W/Util on 931208 Re SALP Mgt Meeting for Period of 920301-930828 ML20059J2321993-11-0505 November 1993 Forwards Safety Evaluation Accepting LAR 92-14,submitted Via for TS Changes to Allow Independent Fixed Incore Detector Sys at Facility to Be Used for Periodic in-core Power Distribution TS SRs ML20128K8601993-02-0202 February 1993 Notification of Significant Licensee Meeting 93-13 W/Util on 930210 to Discuss General Engineering Programs ML20126K1461993-01-0505 January 1993 Notification of 930106 Meeting W/Util in Rockville,Md to Discuss Transfer of Control of Interest of Eua Power in Plant ML20126J6211992-12-24024 December 1992 Forwards LER 88-009-01 Issued on 921113,discussing Increased Thrust Bearing Loading for RHR Pumps When Pumps Run at Reduced Flows.Concern Raised That Inservice Testing May Not Detect Problem Soon Enough to Avoid Failure ML20125B4461992-11-30030 November 1992 Notification of 921203 Licensee Meeting in King of Prussia, PA to Discuss Auxiliary Operator re-licensing Plans ML20128C2131992-11-16016 November 1992 Notification of Postponement of 921124 Meeting W/Util in King of Prussia,Pa to Discuss Process for Reissuing Reactor Operator Licenses Terminated After Auxiliary Operator Performance Review 1999-09-16
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DISTRIBUTION:
Docket File 50-443 Docket File 50-444 (w/o en:1)
METB Docket Files !
METB Reading File I ADRP Reading File Docket Mos. 50 443/444 M 13 B83 ,
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?tFMOR ANDtti FOR Thomas M. Novak Assistant hirector '
for Licensing DL FROM Oaniel R. Muller Assistant Director for Radiation Protection DSI SUBJECT SiETB INPUT FOR SilPPLEMENT TO SEARR00K SER Attached is input fron the Ef fluent Treatment Systens Section METB which covers the monitoring requirements for the service water and RG4S for Seabrook. This input should be included in Sections 11.5 and 11.3 of the next supplement to the Seabrook SER. If thare are any questions contact J. Hayes (x27649) who is the cognizant reviewer for Seabrook.
Origiral signed by Daniel R. Muller j Paniel R. Muller Assistant Director for Radiation Protection Divi sion of Systens Integration Attachment As stated J
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I 11.3 Gaseous Waste Management System The staf f expressed concern in the SER as to' the manner in which the applicant would handle concentrations greater than 4". H2 in cubicles con-l taining components of the radioactive gaseous waste system (RGWS). The applicant in response to a staff question, stated that some cubicles of the RGWS would be monitored for H and if concentrations approached 4",
2 (a) the affected components of the process stream will.be isolated l and/or the af fected component purged with N 25 (b) the af fetted cubicle will be ventilated to reduce the H2 concentra-tion; and (c) unnecessary personnel will be evacuated f rom the area.
The staf f's concern was that the affected cubicle was not ventilated on a routine basis and that, with a H concentration greater than 4",, to 2
begin ventilation would present an 02 source and pote .:ially an explosive mixture. The staff's position was that the cubicle should not be ventilated unless the cubicle's concentration of H i2 s reduced. This could be done by_ j purging the af fected compor.ent with N2 ' j The applicant has revised it's response to the staf f's original question on the H2 concentrations in cubicles of.the RGWS co p;r.ents. This revised response stated that potential leakage from the RGWS components is vented along with normal building exhaust air to Unit 1 plant vent and that this ventilation flow is c.aintained in the event of abnor. al levels of H2 pastenuD ORICITE
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within the cubicles of the RGWS. For abnormal levels of H2 within the H 2 surge tank cubicle, an additional 20,000 scfm purge systen will auto-matica11y activate on high Hp concentrations. Tne normal and supplemental ventilation flows will dilute and reduce the H2 concentration in the af fected compartments.
The staff considers this revised response to have satisfied its concerns on the adequacy of diluting Hp cnntentrations in various cubicles housing l
RGWS components. With the resolution of this item, the staff concludes I that the design of the gaseous waste management systems is acceptable and meets the requirements of 10 CFR Part 20 and 20.106,10 CFR Part 50 and 50.34a, General Design Criteria 3, 60 and 61, and 10 CFR Part 50 Appendix 1. This conclusion is based on the following:
- 1. The applicant has net the requirements of GDC 60 and 61 with respect to controlling releases of radioactive na.erial to t're environ.~ent by assuring that the design of the caseous waste management systems include the equipnent and instruments necessary to detect and to control the release of radioactive materials in gaseous ef fluents.
- 2. The applicant has met the requirements of Appendix I of 10 CFR Part 50 by meeting "as low as is reasnnably achievable" criterion as follows:
(a) Regarding Sections ll.B and II.C of Appendix 1, the staff has considered releases of radioactive caterial (noble gases, radiciodine and particulate) in gaseous ef fluents for nornal
3 operation including anticipated operational occurrences based on expected radwaste inputs over the life of the plant for each reactor on the Seabrook site. Tne staf f nas determined that the proposed gaseous waste management systems are capable of maintaining releases of radioactive materials in gaseous effluents such that the calculated individual doses in an unrestricted area from all pathways of exposure are less than 5 mrem to the total body or 15 mrem to the skin and less than 15 mrem to any organ f rom releases of radiciodine and radio-active material in particulate form.
(b) Regarding Section ll.D of Appendix :. the staff has considered the potential ef festiveness of aug snting the proposed gaseous waste management systems using iters of reasonably demonstrated technology and has determined that 'arther ef fluent treatment will not ef fect reductions in the c. .uiative proulation dose within a 50-mile radius of the reactor at a cost of less than
$1.000 per man-rem or $1000 per me -thyroid-rem.
- 3. The applicant has met the requirements of 10 CFR Part 20 since the staff considered the potential consequences resulting from reactor operation with "1% of the operating fission product inventory in the core being released to the primary coolant" for a Pw'R. and determined that under these conditions the concentrations of radioactive )
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I materials in gaseous ef fluents in unrestricted areas will be a small f raction of the limits specified in 10 CFR Part 20 Appendix B, Table II, Column 1.
- 4. Tne staff has considered the capability of the proposed gaseous waste management systems to meet the anticipated demands of the plant due to anticipated operational occurrences and has concluded that the system capacity and design flexibility are adequate to meet the I
anticipated needs of the plant. '
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- 5. The staf f has reviewed the applicant's quality assurance provisions for the gaseous waste management systems, the quality group classi-fications used for systems components, the seismic design applied to the design of the systems, and of structures housing the radwaste systens. The design of the system and structures 'bousing these systems meet the criteria as set forth in Regulatory Guide 1.143.
- 6. The staf f has reviewed the provisions incorporated in the applicant's design to control releases due to hydrogen explosions in the gaseous waste management systems and concluded that the measures proposed by the applicant are adequate to prevent the occurrence of an explosion or to withstand the ef fects of an explosion in accordance with General Design Criterion 3 of Appendix A to 10 CFR rart 50.
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- 1.5 Process and Ef fluent Monitoring in the Seabrook SER (NOREG-0896) the staf f indicated that the applicant had committed to incorporating into plant proceoures a requirement to obtain periodic grab samples of the service water whenever a leak between the primary component cooling water (PCCW) system and the service water system is confirned and the PCCW is radioettively contaminated. In the SER the l
staff stated that such a proposal did not satisfy the intent of Table 2 of SRP 11.5 and that the staf f will require either a radiation monitor or a continuous sampler of the service water.
After a series of meetings and telephone conversations, the applicant and the staf f have agreed to an approach which will satisfy the intent of Table 2 of SRP 11.5. The applicant has made commitments which will ensure that the potential releases from the service water system are known. ]
These commitments are summarized below:
- 1. Weekly sample and analysis of the PCCW and the service water system.
Daily sampling and analysis of the PCCW and service water system if
- 2. Daily sample and analysis of the service water discharge when the PCCW concentration is > 10-3 uCi/cc.
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- 3. Sampling and analysis of the service water once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the activity level in the PCCW is > 10~ uCi/cc and leakege is confirmed from the PCCW system t.o the service water system.
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I 4 Installation of a rate-of-change alarm 5 'ch will indicate a decreas-ing liquid level in the PCCW head tank 015ed upon detecting an LLD
~b of 10 uCi/cc.
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The aoove commitments, which will be incorporated into the technical specifications' sampling analysis requirements for the service water system, extend over various operating ranges with the 'ncreased sampling and analysis at times when leakage f rom the PCCW to the service water is occurring and/or the activity level in the PCS is high.
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l The rate-of-change alarm would work in conjunc* ion with the PCCW radiation mor,itor to alert the operator in the main con: ol room of a leak to the service water system from the PCCW, For the rzte-of-change alarm, the applicant will select a set point based upon :stecting an activity level of 10' uti/cc in the combined discharge of t s service water system. This activity level was selected because it is the 'nimum detectable level of a service water monitor if such a monitor tre installed.
1 Weekly sanpling and analysis of the service water system will provide ef fluent data when confirmed leakage from the ::CW system exists and the PCCW activity level is less than 10- uti/cc. "t will also provide a check of the operability of rate-of-change nor*: ors function. Weekly l
sanpling and analysis of the PCCW will confirn the operability of the PCCW radiation monitor.
l Should tne PCCW radiation monitor be inoperable, daily sampling and analysis of the service water and the PCCW will ensure that any release will be cetermined within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and that a record of effluents from the service water may be maintained if a leak exists from the PCCW to the service water.
The intent of daily sampling and analysis of the service water when the PCCW activity level is > 10~3 uCi/cc is to cover those situations where the responsiveness of the rate-of-change alarm nay be slow indicating a f leak due to equal inleakage and outleakage f rom the PCCW. With this sanpling and analysis requirement, the time period before a leak is determined is minimized (24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> versus 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br />) and the potential consequences of such a leak are reduced. The PCCW activity level of 10-3 uCi/cc was chosen because release of activity above this level would be unacceptable if allowed to continue for 7 days. The rate-of-change alarm would provide the operator with an alert should a leak j I
develop during this period of tine.
For those occasins where confirned leakage f rcn the PCCW system exists and the radioactivity level in the PCCW is > 10 uCi/cc, sanples will be taken and ar.alyzed of the service water once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. The l l
requirement to sample and analyze once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> is the standard l l
action statement for the service water system if its radiation nonitor l is inoperable. The staf f finds the concentration level of 10 uCi/cc
. ,r J
acceptable for initiating this twice daily sanoling because at this 1
concentration the leak rate f rom the pCCW would have to be at least l
1.1 gpm ir, order f or a service water monitor to detect. At concentrations below 10 ', the weekly sample and analysis is sufficient.
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The rate-of-change alarm provides a reasonable approach to determine leakage f rr the PCCW system. It's alarn set point will be established
~0 at a concentration of 10 uCi/cc. This translates to leak rate of I approximately 1.1 gpm at a concentration of 10 uCi/cc. With the i
incorporation of the PCCW radiation monitor and the rate-of-change in PCCW head level, the fluctuation in the PCCW can be seen in a short period of time. ~he methodology establishing the set point for this alarm will be included in the applicant's ODCM.
Based upor the staf f's review of the proposed technical specifications for the sa pling and analysis of the service ater system, PCCW, and utili:atice of the rate-of-change alann, the applicant's proposed approach 1
for deterr'ning ef fluents from the service water system, in lieu of a j l
service water nonitor, is acceptable and meets the intent of Table 2 of SRP 11.5. j 1
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