SER Accepting Core Stratification Sample Acquisition Program (Rev 3).Program Can Be Implemented| ML20211A324 |
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Three Mile Island  |
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| Issue date: |
05/28/1986 |
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| From: |
NRC |
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| To: |
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| Shared Package |
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| ML20211A308 |
List: |
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| References |
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| NUDOCS 8606110132 |
| Download: ML20211A324 (3) |
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Category:SAFETY EVALUATION REPORT--LICENSING & RELATED ISSUES
MONTHYEARML20209G0011999-07-0909 July 1999
Staff Evaluation of Individual Plant Exam of External Events Submittal on Plant,Unit 1
ML20207B6621999-05-27027 May 1999
SER Finding That Licensee Established Acceptable Program to Periodically Verify design-basis Capability of safety-related MOVs at TMI-1 & That Util Adequately Addressed Actions Required in GL 96-05
ML20206D4201999-04-20020 April 1999
Safety Evaluation Granting Exemption from Technical Requirements of 10CFR50,App R,Section III.G.2.c for Fire Areas/Zones AB-FZ-4,CB-FA-1,FH-FZ-1,FH-FZ-6,FH-FZ-6, IPSH-FZ-1,IPSH-FZ-2,AB-FZ-3,AB-FZ-5,AB-FZ-7 & FH-FZ-2
ML20196K3561999-01-22022 January 1999
Safety Evaluation Concluding That Although Original Licensee Thermal Model Was Unacceptable for Ampacity Derating Assessments Revised Model Identified in 970624 Submittal Acceptable for Installed Electrical Raceway Ampacity Limits
ML20196F6861998-12-0202 December 1998
Safety Evaluation Accepting Licensee Second 10-yr Interval ISI Program Plan Request for Alternative to ASME B&PV Code Section XI Requirements Re Actions to Be Taken Upon Detecting Leakage at Bolted Connection
ML20195C6921998-11-12012 November 1998
Safety Evaluation Supporting Amend 52 to License DPR-73
ML20153A9941998-09-16016 September 1998
Safety Evaluation Denying Request to Remove Missile Shields from Plant Design
ML20151U8821998-09-0808 September 1998
SER on Revised Emergency Action Levels for Gpu Nuclear,Inc, Three Mile Island Nuclear Plant Units 1 & 2
ML20237A8331998-08-12012 August 1998
Safety Evaluation Accepting USI A-46 Program Implementation at Plant,Unit 1
ML20199G8371998-01-22022 January 1998
SER Accepting Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Three Mile Island Nuclear Station,Unit 1
ML20210Q9991997-08-28028 August 1997
Safety Evaluation Concluding That Since 25th Tendon Surveillance on Few Yrs Away,Adequacy of Remaining Prestressing Force Will Be Critical to Verify
ML20149F9961997-07-18018 July 1997
Safety Evaluation Re Gpu Nuclear Operational Quality Assurance Plan,Rev 10 for Three Mile Island Nuclear Generating Station,Unit 1 & Oyster Creek Nuclear Generating Station
ML20138H6671996-12-19019 December 1996
Safety Evaluation Accepting Util IPE Submittal in Response to GL 88-20
ML20134D7811996-10-24024 October 1996
Safety Evaluation Supporting Amend 51 to License DPR-73
ML20128L6741996-10-11011 October 1996
Safety Evaluation Accepting Third ten-year Interval for Pump & Valve Inservice Testing Program for Facility
ML20128K1981996-10-0808 October 1996
Safety Evaluation Supporting Amend 50 to License DPR-73
ML20059D1771993-12-28028 December 1993
Safety Evaluation Supporting Amend 48 to License DPR-73
ML20062K1041993-12-0606 December 1993
Safety Evaluation Supporting Amend 47 to License DPR-73
ML20058F0311993-11-16016 November 1993
SE Informing That Changes to Pdms Requirements & Commitments List of 930115,does Not Constitute Unreviewed Safety Question,Nor Do They Involve Significant Hazard or an Environmental Impact
ML20059K3001993-11-0808 November 1993
Safety Evaluation Supporting Amend 46 to License DPR-73
ML20057A3641993-09-0101 September 1993
SER Denying Licensee 930216 & 0416 Requests for Relief from Certain Requirements of ISI Program
ML20056F0171993-08-0505 August 1993
Safety Evaluation Accepting Proposed Changes to Pdms Requirements & Commitments List of 930115
ML20128P7321993-02-19019 February 1993
Safety Evaluation Supporting Amend 171 to License DPR-50
ML20126M2861993-01-0505 January 1993
Safety Evaluation Granting Relief from ISI Post Repair Hydrostatic Schedule Requirements
ML20058G1331990-11-0606 November 1990
Safety Evaluation Supporting Amend 39 to License DPR-73
ML20058P4681990-08-0909 August 1990
Safety Evaluation Accepting Changes to Table 4.3-3 of Recovery Operations Plan
ML20247L0681989-09-11011 September 1989
Safety Evaluation Supporting Amend 35 to License DPR-73
ML20245J4411989-06-23023 June 1989
Safety Evaluation Supporting Util 850823 Response to Generic Ltr 83-28,Item 4.5.3, Reactor Trip Reliability - On-Line Functional Testing of Reactor Trip Sys
ML20247E8141989-05-18018 May 1989
Safety Evaluation Accepting Proposed Changes to Recovery Operations Plan
ML20247G4131989-05-15015 May 1989
Safety Evaluation Supporting Amend 34 to License DPR-73
ML20245J1201989-04-27027 April 1989
Safety Evaluation Supporting Amend 149 to License DPR-50
ML20245A6521989-04-12012 April 1989
Safety Evaluation Supporting Amend 33 to License DPR-73
ML20196B3071988-12-0101 December 1988
Safety Evaluation Supporting Approval of Lower Core Support Assembly & Lower Head Defueling
ML20153E6861988-08-31031 August 1988
Safety Evaluation Accepting Request for Exemption from Lecture Requirements of 10CFR55.59(c)(2) & for Exceptions to Control Manipulations Required by 10CFR55.59(c)(3)(i), Subsections (a) to (AA)
ML20153E8471988-08-30030 August 1988
Safety Evaluation Approving Request for Mod of Recovery Operations Plan Table 4.3.3
ML20195B6991988-05-27027 May 1988
Safety Evaluation Supporting Amend 30 to License DPR-73
ML20155B3151988-05-25025 May 1988
Safety Evaluation Supporting Amend 30 to License DPR-73
ML20151D5611988-03-31031 March 1988
Sser of Util 870917 & 1103 Justifications for Proposals & & Relief Requests Re Pump & Valve Inservice Testing Program Denied in 870319 Ser.Exclusion of Stated Valves Accepted
ML20150D5101988-03-18018 March 1988
Safety Evaluation Supporting Util 871027 Submittal Re Reconfiguring Main Steam Line Rupture Detection Sys Bypass Indicating Lamp During Cycle 8 Refueling Outage
ML20147D9721988-02-26026 February 1988
Supplemental Safety Evaluation Supporting Util Use of Rochester Instrument Sys Model SC-1302 Isolation Devices,Per NUREG-0737,Suppl 1
ML20147E2491988-01-0808 January 1988
Safety Evaluation Supporting Util 871203 & 28 Requests to Use Core Bore Machine to Dismantle Lower Core Suport Assembly
ML20237B1501987-12-10010 December 1987
SER Supporting Util Response to Generic Ltr 83-28,Item 2.1 (Part 2), Vendor Interface Programs (Reactor Trip Sys Components)
ML20236T5611987-11-18018 November 1987
SER Accepting Util 831108,850805 & 870529 Responses to Generic Ltr 83-28,Item 2.2.1, Equipment Classification Programs for All Safety-Related Components
ML20236M9221987-11-0505 November 1987
Safety Evaluation Supporting Util Proposal Re Elimination of Postulated Primary Loop Pipe Ruptures from Design Basis
ML20235S3241987-10-0101 October 1987
Safety Evaluation Approving Util 870724 Request for Staging of Two Radwaste Solidification Liners in Waste Handling & Packaging facility.TMI-2 Svc List Encl
ML20237G5301987-08-12012 August 1987
Safety Evaluation of Util Response to Item 2.1 (Part 1) of Generic Ltr 83-28, Equipment Classification (Reactor Trip Sys Components) TMI-1. Util Response Acceptable
ML20234B9701987-06-25025 June 1987
Safety Evaluation Supporting Amend 28 to License DPR-73
ML20212Q7341987-04-17017 April 1987
Safety Evaluation Supporting Amend 27 to License DPR-73
ML20206B4131987-04-0303 April 1987
Safety Evaluation Supporting Util 850416 Request for Deletion of Constraint of 20-ft Square Modified Penetrations Between Reactor & Auxiliary/Fuel Handling Bldgs.Expanding of Limit to 40-ft Square Acceptable
ML20205C6161987-03-20020 March 1987
Safety Evaluation Re Util 860820 & 1020 Requests for Relief from ASME Code Section XI Requirements for Class 1,2 & 3 Components.Relief Should Be Granted Except for Requests 4 & 7.Insufficient Info Provided for Request 7
1999-07-09
[Table view]
Category:TEXT-SAFETY REPORT
MONTHYEARML20217K4701999-09-30030 September 1999
Monthly Operating Rept for Sept 1999 for TMI-1.With
ML20211H5111999-08-31031 August 1999
Non-proprietary Rev 1 to MPR-1820(NP), TMI Nuclear Generating Station OTSG Kinetic Expansion Insp Criteria Analysis
ML20211Q3551999-08-31031 August 1999
Monthly Operating Rept for Aug 1999 for Tmi,Unit 1.With
ML20210R4791999-08-13013 August 1999
Update 3 to Post-Defueling Monitored Storage SAR, for TMI-2
ML20210U4791999-07-31031 July 1999
Monthly Operating Rept for July 1999 for TMI-1.With
ML20209G0011999-07-0909 July 1999
Staff Evaluation of Individual Plant Exam of External Events Submittal on Plant,Unit 1
ML20210K7651999-07-0909 July 1999
Rev 2 to 86-5002073-02, Summary Rept for Bwog 20% Tp Loca
ML20209H8251999-07-0101 July 1999
Provides Commission with Evaluation of & Recommendations for Improvement in Processes Used in Staff Review & Approval of Applications for Transfer of Operating Licenses of TMI-1 & Pilgrim Station
ML20209H1421999-06-30030 June 1999
Monthly Operating Rept for June 1999 for TMI-1.With
ML20195H0751999-06-0808 June 1999
Drill 9904, 1999 Biennial Exercise for Three Mile Island
ML20195H9261999-05-31031 May 1999
Monthly Operating Rept for May 1999 for TMI-1.With
ML20209G0351999-05-31031 May 1999
TER on Review of TMI-1 IPEEE Submittal on High Winds,Floods & Other External Events (Hfo)
ML20207B6621999-05-27027 May 1999
SER Finding That Licensee Established Acceptable Program to Periodically Verify design-basis Capability of safety-related MOVs at TMI-1 & That Util Adequately Addressed Actions Required in GL 96-05
ML20206R0571999-04-30030 April 1999
Monthly Operating Rept for Apr 1999 for Tmi,Unit 1.With
ML20206D4201999-04-20020 April 1999
Safety Evaluation Granting Exemption from Technical Requirements of 10CFR50,App R,Section III.G.2.c for Fire Areas/Zones AB-FZ-4,CB-FA-1,FH-FZ-1,FH-FZ-6,FH-FZ-6, IPSH-FZ-1,IPSH-FZ-2,AB-FZ-3,AB-FZ-5,AB-FZ-7 & FH-FZ-2
ML20209G0071999-03-31031 March 1999
Submittal-Only Screening Review of Three Mile Island,Unit 1 Individual Plant Exam for External Events (Seismic Portion)
ML20205K6851999-03-31031 March 1999
Monthly Operating Rept for Mar 1999 for Tmi,Unit 1.With
ML20210C0161999-03-0101 March 1999
Forwards Corrected Pp 3 of SECY-98-252.Correction Makes Changes to Footnote 3 as Directed by SRM on SECY-98-246
ML20207M8461999-02-28028 February 1999
Monthly Operating Rept for Feb 1999 for TMI-1.With
ML20196K3561999-01-22022 January 1999
Safety Evaluation Concluding That Although Original Licensee Thermal Model Was Unacceptable for Ampacity Derating Assessments Revised Model Identified in 970624 Submittal Acceptable for Installed Electrical Raceway Ampacity Limits
ML20207A9291998-12-31031 December 1998
1998 Annual Rept for TMI-1 & TMI-2
ML20196G4661998-12-31031 December 1998
British Energy Annual Rept & Accounts 1997/98. Prospectus of British Energy Share Offer Encl
ML20196F6861998-12-0202 December 1998
Safety Evaluation Accepting Licensee Second 10-yr Interval ISI Program Plan Request for Alternative to ASME B&PV Code Section XI Requirements Re Actions to Be Taken Upon Detecting Leakage at Bolted Connection
ML20198B8641998-11-30030 November 1998
Monthly Operating Rept for Nov 1998 for TMI-1.With
ML20195C6921998-11-12012 November 1998
Safety Evaluation Supporting Amend 52 to License DPR-73
ML20195J8591998-11-12012 November 1998
Rev 11 to 1000-PLN-7200.01, Gpu Nuclear Operational QA Plan
ML20196B7191998-10-31031 October 1998
Monthly Operating Rept for Oct 1998 for TMI-1.With
ML20203G1211998-10-30030 October 1998
Informs Commission About Staff Preliminary Views Concerning Whether Proposed Purchase of TMI-1,by Amergen,Inc,Would Cause Commission to Know or Have Reason to Believe That License for TMI-1 Would Be Controlled by Foreign Govt
ML20155E7511998-10-15015 October 1998
Rev 1 to Form NIS-1 Owners Data Rept for Isi,Rept on 1997 Outage 12R EC Exams of TMI-1 OTSG Tubing
ML20154L5541998-09-30030 September 1998
Monthly Operating Rept for Sept 1998 for TMI Unit 1.With
ML20153A9941998-09-16016 September 1998
Safety Evaluation Denying Request to Remove Missile Shields from Plant Design
ML20151U8821998-09-0808 September 1998
SER on Revised Emergency Action Levels for Gpu Nuclear,Inc, Three Mile Island Nuclear Plant Units 1 & 2
ML20151V2811998-08-31031 August 1998
Monthly Operating Rept for Aug 1998 for Tmi,Unit 1.With
ML20237A8331998-08-12012 August 1998
Safety Evaluation Accepting USI A-46 Program Implementation at Plant,Unit 1
ML20237C6411998-07-31031 July 1998
Monthly Operating Rept for July 1998 for Tmi,Unit 1
ML20236R2201998-06-30030 June 1998
Monthly Operating Rept for June 1998 for TMI-1
ML20236W9961998-06-0909 June 1998
1998 Quadrennial Simulator Certification Rept
ML20248F7441998-05-31031 May 1998
Reactor Vessel Working Group,Response to RAI Regarding Reactor Pressure Vessel Integrity
ML20249A1061998-05-31031 May 1998
Monthly Operating Rept for May 1998 for TMI-1
ML20247G0761998-04-30030 April 1998
Monthly Operating Rept for Apr 1998 for Three Mile Island Nuclear Station,Unit 1
ML20212A2191998-04-22022 April 1998
Rev 3 to Gpu Nuclear Post-Defueling Monitored Storage QAP for Three Mile Island Unit 2
ML20248H6991998-04-0808 April 1998
Requests,By Negative Consent,Commission Approval of Intent to Inform Doe,Idaho Operations Ofc of Finding That Adequate Safety Basis Support Granting Exemption to 10CFR72 Seismic Design Requirement for ISFSI to Store TMI-2 Fuel Debris
ML20216K1061998-03-31031 March 1998
Monthly Operating Rept for Mar 1998 for Three Mile Island Nuclear Station,Unit 1
ML20217E0811998-03-24024 March 1998
Rev 0 to TR-121, TMI-1 Control Room Habitability for Max Hypothetical Accident
ML20212E2291998-03-0404 March 1998
Rev 11 to 1000-PLN-7200,01, Gpu Nuclear Operational QAP, Consisting of Revised Pages & Pages for Which Pagination Affected
ML20216F0981998-02-28028 February 1998
Monthly Operating Rept for Feb 1998 for Three Mile Island Nuclear Station,Unit 1
ML20202F8121998-01-31031 January 1998
Monthly Operating Rept for Jan 1998 for TMI Nuclear Station, Unit 1
ML20199G8371998-01-22022 January 1998
SER Accepting Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves, for Three Mile Island Nuclear Station,Unit 1
ML20198N2901998-01-12012 January 1998
Form NIS-1 Owners' Data Rept for Isi
ML20199J3251997-12-31031 December 1997
Monthly Operating Rept for Dec 1997 for Three Mile Island Nuclear Station,Unit 1
1999-09-30
[Table view] |
Text
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SAFETY EVALUATION REPORT FOR CORE STRATIFICATION SAMPLE ACQUISITION, REVISION 3 INTRODUCTION On August 30, 1985, GPUN submitted the Safety Evaluation Report for Core Stratification Sample Acquisition (Reference 1). This encompassed drilling core samples down to the lower grid assembly. Upon review, the NRC staff requested additional information (Reference 2). In response, GPUN submitted Reference 3 which also revised the work activity to allow for the option of boring through the flow distributor plate, if necessary to permit TV camera access. The NRC staff approved the original scope of work activity, i.e.,
drilling to the lower grid assembly (Reference 4) and requested additional information on the revised work activity (Reference 5). In response, GPUN submitted Reference 6.
This safety evaluation addresses the revised work scope described in GPUN submittals, References 3 and 6.
EVALUATION The change in work scope to allow the option of boring through the flow distributor plate if necessary, does not change the criticality, pyrophoricity, or mechanical force considerations previously evaluated by the NRC. However, the operation could allow the drill string to approach the lower vessel head as close as six inches. Errors in drill string length or coupling could allow the bit to contact the lower vessel head. To prevent this possibility, core bore activities will be restricted to within a cylindrical envelope of approximately 8'1" in diameter centered on the reactor vessel centerline. Additionally, the licensee has committed to a program of measurements and verification of drill string length and coupling to insure that contact with the lower vessel head is not possible when the drill is fully extended into the reactor vessel. The staff finds that the licensee's system of control of the proposed activity is acceptable.
CCNCLUSION l
The staff has examined and evaluated the potential risks associated with the Core Stratification Sample Acquisition Program (Revision 3), and determined l that pyrophoricity, criticality, and mechanical force considerations do not differ from those previously reviewed and approved. The licensee's program to assure that the drill does not adversely affect reactor vessel integrity is acceptable. We therefore conclude that Core Stratification Sample Acquisition Activities (Revision 3) can be implemented without significant risk to the health and safety of the public.
8606110132 860528 0 DR ADOCK 0500
s References
- 1. GPUN letter with attached SER from F. R. Standerfer, 4410-85-L-0147, to B. J. Snyder dated August 30, 1985.
- 2. NRC letter, NRC/TMI 85-095, W. D. Travers to F. R. Standerfer, " Safety Evaluation Report (SER) for Core Stratification Sample Acquisition" dated November 26, 1985.
- 3. GPUN letter with attached SER from F. R. Standerfer, 4410-85-L-0248, to W. D. Travers dated December 31, 1985.
- 4. NRC letter with attached Safety Evaluation NRC/TMI 86-041, W. D. Travers to F. R. Standerfer dated May 5,1986.
- 5. NRC letter NRC/TMI 86-038, W. D. Travers to F. R. Standerfer, " Safety Evaluation Report for Core Stratification Sample Acquisition, Revision 3" dated April 23, 1986.
- 6. GPUN letter from F. R. Standerfer, " Safety Evaluation Report for Core Stratification Sample Acquisition, Revision 3", 4410-86-L-0077, to W. D.
Travers dated May 13, 1986.
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l Dr. Thomas Murley Willis Bisby. Site Manager Regional Administrator. Region I U.S. Department of Energy U.S. Nuclear Regulatory Cossaission P.O. Boa 88
. 631 Park Avenue Middletown, PA 17057 0311 King of Prussia. PA 19406 -
John F. Wolfe. Esq.. Chairman. Olvision of Three Mile Island Programs Adelnistrative Judge NE-23 340g Shepterd St. U.S. Department of Energy Chevy Chase. MD. 200]$ Washington. 0.C. 20545
- Dr. Oscar H. Paris William LOChstet .
Administrative Judge 104 Davey Laboratory Atomic Safety and Licensing Pennsylvania State University Board Panel University Park. PA 16802 -
U.S. Nuclear Regulatory Caission Washington. 0.C. 20555 Randy Myers. Editorial The Patriot
Administrative Judge Harrisburg, PA 17105 Atomic Safety and Licensing Board Panel Robert B. Borsum U.S. Nuclear Regulatory Conssission Babcock & Wilcon
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Washington. 0.C. 20555
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Karin W. Carter 7910 Woodmount Ave.
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-. Walter W. Cohen Consumer Advocate Secretary Department of Justice U.S. Nuclear Regulatory Coassission Strawberry Square. 14th Floor ATTN: Chief. 00Cheting & ServlCe Branch Harrisburg, PA 17127 Washington. 0.C. 20555 Edward O. Swart Mr. Larry Hochendoner Board of Supervisors Dauphin County Conseissioner Londonderry Township
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Ha rris burg.* PA 17108 1295 Middletown PA 17057
,. John E. Minnich. Chairperson. , Robert L. Knupp. Esquire Dauphin County Board of Cossaissioners
( Dauphin County Courthouse Assistant Solicitor Knupp and Andrews Front and Market Streets P.O. Boa P Harrisburg. PA 17101 407 N. Front St.
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U.S. Environmental Protection Agency Region Ill Office l
ATTN: [IS Coordinator Curtis Building (Stath Floor) s -
. 6th & Walnut Streets Philadelphia, PA 19106 Mr. Edwin Eintner' Esecutive Vice President Thomas M. Gerusky. Director General Public Utilities Nuclear Corp.
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