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Category:Letter
MONTHYEARDCL-24-075, Response to Request for Additional Information for License Amendment Request 23-02, Application to Adopt 10 CFR 50.69, “Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power React2024-08-0808 August 2024 Response to Request for Additional Information for License Amendment Request 23-02, Application to Adopt 10 CFR 50.69, “Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power React IR 05000275/20240022024-08-0606 August 2024 Integrated Inspection Report 05000275/2024002 and 05000323/2024002 DCL-24-070, License Amendment Request 24-03 Revision to Technical Specification 5.5.16 for Permanent Extension of Type a and Type C Leak Rate Test Frequencies2024-07-31031 July 2024 License Amendment Request 24-03 Revision to Technical Specification 5.5.16 for Permanent Extension of Type a and Type C Leak Rate Test Frequencies DCL-24-071, Core Operating Limits Report for Unit 2 Cycle 252024-07-22022 July 2024 Core Operating Limits Report for Unit 2 Cycle 25 DCL-2024-523, Submittal of Report on Discharge Self-Monitoring2024-07-18018 July 2024 Submittal of Report on Discharge Self-Monitoring ML24187A1352024-07-16016 July 2024 Letter to Paula Gerfen - Diablo Canyon Units 1 and 2 - Summary of June 2024 Audit Related to the License Renewal Application Severe Accident Mitigation Alternatives Review IR 05000275/20240142024-07-11011 July 2024 Age-Related Degradation Inspection Report 05000275/2024014 and 05000323/2024014 IR 05000275/20243012024-07-10010 July 2024 NRC Initial Operator Licensing Examination Approval 05000275/2024301; 05000323/2024301 IR 05000275/20244012024-07-0808 July 2024 Security Baseline Inspection Report 05000275/2024401 and 05000323/2024401 (Full Report) IR 05000323/20240112024-07-0303 July 2024 License Renewal Phase Report 05000323/2024011 DCL-2024-527, Sea Turtle Stranding Report (Loggerhead Sea Turtle) Diablo Canyon Power Plant2024-07-0101 July 2024 Sea Turtle Stranding Report (Loggerhead Sea Turtle) Diablo Canyon Power Plant DCL-24-066, Request to Extend the Nrg Approval of Alternative for Use of Full Structural Weld Overlay, REP-RHR-SWOL2024-06-27027 June 2024 Request to Extend the Nrg Approval of Alternative for Use of Full Structural Weld Overlay, REP-RHR-SWOL ML24155A2182024-06-18018 June 2024 OEDO-23-00350-NRR - (LTR-23-0228-1) - Closure Letter - 10 CFR 2.206 Petition from Mothers for Peace and Friends of the Earth Regarding Diablo Canyon ML24129A1762024-06-14014 June 2024 National Historic Preservation Act Section 106 Consultation – Results of Identification and Evaluation (Docket Number: 72-026) ML24200A2052024-06-0707 June 2024 Fws to NRC, List of Threatened and Endangered Species That May Occur in Your Proposed Project Location or May Be Affected by Your Proposed Project for Diablo Canyon License Renewal ML24099A2192024-05-29029 May 2024 Plants, Units 1 and 2 Issuance of Amendment Nos. 245 and 247 Revision to TSs to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b ML24117A0132024-05-20020 May 2024 Letter to Paula Gerfen-Diablo Canyon Units 1 and 2-Regulatory Audit Regarding Severe Accident Mitigation Alternatives for the License Renewal Application DCL-24-052, Responses to NRC Requests for Additional Information on the Diablo Canyon Power Plant License Renewal Application Environmental Report2024-05-16016 May 2024 Responses to NRC Requests for Additional Information on the Diablo Canyon Power Plant License Renewal Application Environmental Report DCL-24-051, One Hundred Eighty Day Steam Generator Report for Twenty-Fourth Refueling Outage2024-05-0808 May 2024 One Hundred Eighty Day Steam Generator Report for Twenty-Fourth Refueling Outage ML24127A2042024-05-0202 May 2024 02May2024 Ltr - California Coastal Commission to Pg&E, Coastal Development Permit Needed for Pg&E’S Proposed Relicensing of Diablo Canyon Nuclear Power Plant DCL-24-049, 2023 Annual Radiological Environmental Operating Report2024-05-0101 May 2024 2023 Annual Radiological Environmental Operating Report DCL-24-047, 2023 Annual Non-radiological Environmental Operating Report2024-05-0101 May 2024 2023 Annual Non-radiological Environmental Operating Report DCL-24-048, O CFR 50.59 and 1 O CFR 72.48 Summary Report for the Period of January 1, 2022, Through December 31, 20232024-04-30030 April 2024 O CFR 50.59 and 1 O CFR 72.48 Summary Report for the Period of January 1, 2022, Through December 31, 2023 L-24-004, Independent Spent Fuel Storage Installation - Responses to NRC Requests for Additional Information on the Diablo Canyon Independent Spent Fuel Storage Installation License Renewal Application (Cac/Epid 001028/L-2022-RNW-0007)2024-04-30030 April 2024 Independent Spent Fuel Storage Installation - Responses to NRC Requests for Additional Information on the Diablo Canyon Independent Spent Fuel Storage Installation License Renewal Application (Cac/Epid 001028/L-2022-RNW-0007) DCL-24-027, 2023 Annual Radioactive Effluent Release Report2024-04-28028 April 2024 2023 Annual Radioactive Effluent Release Report DCL-24-045, Annual Report of Occupational Radiation Exposure for 20232024-04-24024 April 2024 Annual Report of Occupational Radiation Exposure for 2023 IR 05000275/20240012024-04-23023 April 2024 Integrated Inspection Report 05000275/2024001 and 05000323/2024001 ML24114A2032024-04-22022 April 2024 Request for Information for EP Program and Performance Indicator Verification Inspection (Wolf Creek Nuclear Generating Station) Inspection Report 05000482/2024003 ML24106A2882024-04-18018 April 2024 License Renewal Application Environmental Review RCIs and RAIs ML24106A2892024-04-18018 April 2024 Letter to Paula Gerfen - Diablo Canyon Units 1 and 2 - Summary of March 2024 Audit Regarding the Environmental Review of the License Renewal Application DCL-24-042, Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations2024-04-17017 April 2024 Response to NRC Regulatory Issue Summary 2024-01, Preparation and Scheduling of Operator Licensing Examinations ML24108A1122024-04-15015 April 2024 License Amendment Request 24-02 Request for Approval of DCPP Early Warning System to Meet 10 CFR 73.55(i)(2) and 10 CFR 73.55(e)(9)(vi)(A) DCL-24-023, Revised Certification of Permanent Cessation of Power Operations2024-04-0202 April 2024 Revised Certification of Permanent Cessation of Power Operations DCL-24-022, Notification of Changes to Decommissioning Schedule2024-04-0202 April 2024 Notification of Changes to Decommissioning Schedule DCL-24-032, 2024 Annual Statement of Insurance for Pacific Gas and Electric Company’S Diablo Canyon Power Plant2024-03-27027 March 2024 2024 Annual Statement of Insurance for Pacific Gas and Electric Company’S Diablo Canyon Power Plant DCL-24-031, Decommissioning Funding Report2024-03-27027 March 2024 Decommissioning Funding Report ML24082A2592024-03-25025 March 2024 Notice of Enforcement Discretion for Diablo Canyon Power Plant, Unit 2 (EPID L-2024-LLD-0002) - March 25, 2024 ML24081A0462024-03-22022 March 2024 Audit Summary in Support of the License Amendment Request to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b ML24081A4052024-03-21021 March 2024 Request for Enforcement Discretion Regarding Compliance with Technical Specification 3.0.3, Limiting Condition for Operation Applicability DCL-24-028, Request for Enforcement Discretion Regarding Compliance with Technical Specification 3.0.3, Limiting Condition for Operation Applicability2024-03-21021 March 2024 Request for Enforcement Discretion Regarding Compliance with Technical Specification 3.0.3, Limiting Condition for Operation Applicability ML24065A1312024-03-20020 March 2024 ISFSI Renewal RAI Transmittal Letter IR 05000275/20244032024-03-12012 March 2024 Cyber Security Inspection Report 05000275/2024403 and 05000323/2024403 (Cover Letter) ML24071A1742024-03-0404 March 2024 Email - (External_Sender) Shutdown Petition to NRC Commissioners ML24065A3662024-03-0404 March 2024 Notification of Site Inspection for License Renewal and Request for Information Inspection (05000323/2024011) IR 05000275/20230062024-02-28028 February 2024 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2023006 and 05000323/2023006) DCL-24-018, License Amendment Request 24-01 Revision to Technical Specification 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR)2024-02-28028 February 2024 License Amendment Request 24-01 Revision to Technical Specification 5.6.6, Reactor Coolant System (RCS) Pressure and Temperature Limits Report (PTLR) DCL-2024-507, 2023 Annual Report on Discharge Self-Monitoring2024-02-27027 February 2024 2023 Annual Report on Discharge Self-Monitoring ML24056A0022024-02-27027 February 2024 – License Renewal Regulatory Audit Regarding the Environmental Review of the License Renewal Application ML24058A2552024-02-22022 February 2024 Formal Acceptance from Sy Chumash Re Regarding Consultation on the DC NPP ML24058A2562024-02-22022 February 2024 Santa Ynez Band or Chumash Tribe - Consultation Request Diablo Canyon NPP Units 1 and 2 2024-08-08
[Table view] Category:Inspection Plan
MONTHYEARML24114A2032024-04-22022 April 2024 Request for Information for EP Program and Performance Indicator Verification Inspection (Wolf Creek Nuclear Generating Station) Inspection Report 05000482/2024003 ML24065A3662024-03-0404 March 2024 Notification of Site Inspection for License Renewal and Request for Information Inspection (05000323/2024011) IR 05000275/20230062024-02-28028 February 2024 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2023006 and 05000323/2023006) ML23249A2782023-09-0606 September 2023 Inservice Inspection Request for Information IR 05000275/20230052023-08-22022 August 2023 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2023005 and 05000323/2023005) - Mid Cycle Letter IR 05000275/20220062023-03-0101 March 2023 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2022006 and 05000323/2022006) ML23005A1732023-01-0909 January 2023 Notification of Commercial Grade Dedication Inspection IR 05000275/20220052022-08-23023 August 2022 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2022005 and 05000323/2022005) ML22194A8872022-07-11011 July 2022 September 2022 Emergency Preparedness Exercise Inspection - Request for Information Email ML22068A2312022-03-17017 March 2022 Notification of NRC Design Bases Assurance Inspection (Team) 05000275/2022011 and 05000323/2022011 and Initial Request for Information IR 05000275/20210062022-03-0202 March 2022 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2021006 and 05000323/2021006) ML22019A0412021-12-29029 December 2021 RFI ML21230A3902021-09-0101 September 2021 DC Mid-Cycle Inspection Plan Transmittal Letter 2021 ML21229A2242021-08-17017 August 2021 Notification of NRC Triennial Heat Exchanger/Heat Sink Performance Inspection (05000275/2021004 and 05000323/2021004) and Request for Information ML21130A3642021-06-21021 June 2021 DC 2021401 Information Request ML21069A2102021-03-12012 March 2021 Notification of Inspection (NRC Inspection Report 05000275/2021002, 05000323/2021002) and Request for Information IR 05000275/20200062021-03-0303 March 2021 DC 2020 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 & 2 (Report 05000275/2020006 & 05000323/2020006) ML21061A3302021-02-25025 February 2021 Request for Information: Diablo Canyon Power Plant, Dated January 6, 2021; IR 05000275/323/2021-001 Occupational Radiation Safety Inspection - 2, 4 ML20301A2212020-10-27027 October 2020 Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000275/2021010 and 05000323/2021010) and Request for Information IR 05000275/20200052020-09-0101 September 2020 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2020005 and 05000323/2020005) ML20280A5432020-06-0303 June 2020 DC 2020 PIR Request for Information ML20055E1082020-03-0303 March 2020 DC 2019006 Annual Assessment Letter IR 05000275/20190052019-08-30030 August 2019 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2, Report 05000275/2019005 and 05000323/2019005 IR 05000275/20180062019-03-0404 March 2019 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2018006 and 05000323/2018006) ML19043A9452019-02-20020 February 2019 Notification of Inspection (NRC Inspection Report 05000275/2019002, 05000323/2019002 and Request for Information IR 05000275/20180052018-08-31031 August 2018 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2018005 and 05000323/2018005) IR 05000275/20170062018-03-0101 March 2018 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2017006 and 05000323/2017006) IR 05000275/20170052017-08-28028 August 2017 Updated Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2017005 and 05000323/2017005) ML17243A3022017-08-28028 August 2017 Updated Non-Public Security Inspection Plan for Diablo Canyon Power Plant, Units 1 and 2 IR 05000275/20160062017-03-0101 March 2017 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2016006 and 05000323/2016006) ML17037D1232017-02-0606 February 2017 Notification of Inspection (NRC Inspection Report 05000275/2017002; 05000323/2017002) and Request for Information ML16239A2532016-08-31031 August 2016 Mid-Cycle Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2016005 and 05000323/2016005) IR 05000275/20160052016-08-31031 August 2016 Mid-Cycle Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2016005 and 05000323/2016005) IR 05000275/20164012016-08-31031 August 2016 Non-Public Security Inspection Plan for Diablo Canyon Nuclear Power Plant, Units 1 and 2 (NRC Physical Security Inspection Report Number 05000275/2016401 and 05000323/201640) IR 05000275/20150062016-03-0202 March 2016 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2015006 and 05000323/2015006) IR 05000275/20154012015-09-0101 September 2015 Non-Public Security Inspection Plan for Diablo Canyon Nuclear Power Plant, Units 1 and 2 (NRC Physical Security Inspection Report Number 05000275/2015401 and 05000323/2015401) IR 05000275/20150052015-09-0101 September 2015 Mid-Cycle Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2015005 and 05000323/2015005) IR 05000275/20140012015-03-0404 March 2015 Annual Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2, (Report 05000275/2014001 and 05000323/2014001) IR 05000275/20140062014-09-0202 September 2014 Mid-Cycle Assessment Letter for Diablo Canyon Power Plant, Units 1 and 2 (Report 05000275/2014006 and 05000323/2014006) IR 05000275/20144022014-09-0202 September 2014 Non-Public Security Inspection Plan for Diablo Canyon Nuclear Power Plant, Units 1 and 2 (NRC Physical Security Inspection Report Number 05000275/2014402 and 05000323/2014402) IR 05000275/20130012014-03-0404 March 2014 IR 05000275-13-001 & 05000323-13-001, 02/12/2014, Diablo Canyon, Unit 1 & 2, Annual Assessment Inspection Plan ML13246A2882013-09-0303 September 2013 Midcycle Assessment Letter 2013 ML13206A1892013-07-25025 July 2013 IR 05000275-13-004, and 05000323-13-004, Diablo Canyon Power - Notification of NRC Triennial Heat Sink Performance Inspection IR 05000275/20128012013-03-0404 March 2013 Annual Assessment Letter for Diablo Canyon Power Plant Units 1 & 2 (IR 05000275-12-801 and 05000323-12-801) ML13032A3142013-02-0101 February 2013 IR 05000275-13-007, 05000323-13-007, on 05/20/2013, Diablo Canyon - Notification of NRC Component Design Bases Inspection and Initial RAI IR 05000275/20120062012-09-0404 September 2012 Mid-Cycle Performance Review and Inspection Plan - Diablo Canyon Power Plant (05000275/2012006, 05000323/2012006) IR 05000275/20120012012-03-0505 March 2012 Annual Assessment Letter for Diablo Canyon Power Plant - Units 1 and 2 (Report 05000275/2012001 and 05000323/2012001) ML1124401692011-09-0101 September 2011 Mid-Cycle Performance Review and Inspection Plan - Diablo Canyon Power Plant - Units 1 and 2 ML1029503242010-10-21021 October 2010 Notification of NRC Triennial Heat Exchanger Inspection 05000275-10-005 & 05000323-10-005 ML1024403362010-09-0101 September 2010 Mid-Cycle Performance Review and Inspection Plan - Diablo Canyon Power Plant 2024-04-22
[Table view] |
See also: IR 05000275/2010005
Text
UNITED STATES
NU C LE AR RE G UL AT O RY C O M M I S S I O N
R E GI ON I V
612 EAST LAMAR BLVD , SU I TE 400
AR LI N GTON , TEXAS 76011-4125
October 21, 2010
John T. Conway
Senior Vice President-Energy &
Supply and Chief Nuclear Officer
Pacific Gas and Electric Company
Diablo Canyon Power Plant
77 Beale Street, Mail Code B32
San Francisco, CA 94105
SUBJECT: DIABLO CANYON- NOTIFICATION OF NRC TRIENNIAL HEAT
EXCHANGER INSPECTION 05000275/2010005;O5000323/2010005
Dear Mr. Conway:
The purpose of this letter is to notify you that the U.S. Nuclear Regulatory Commission
(NRC) Region IV staff will conduct a triennial heat sink inspection at your facility. The
inspection will be comprised of one reactor inspector from the NRC Region IV office.
The inspection will be conducted in accordance with Inspection Procedure 71111.07T,
"Heat Sink Performance."
The schedule for the inspection is as follows:
Onsite inspection: December 6, 2010 - December 10, 2010
Experience has shown that this inspection is resource intensive for your staff. In order
to minimize the impact to your onsite resources and to ensure a productive inspection,
we have enclosed a request for documents needed for this inspection. Please note that
the documents are requested to be provided by November 15, 2010. We request that
during the onsite inspection week, you ensure that copies of analyses, evaluations, or
documentation regarding the implementation and maintenance of your heat exchanger
program are available. Of specific interest are those documents that establish that your
heat exchanger program satisfies NRC regulatory requirements and conforms to
applicable NRC guidance. Also, appropriate personnel knowledgeable of safety-related
heat exchangers should be available to support the inspector at the site during the
inspection.
We have discussed the schedule for this inspection activity with your staff and
understand that our regulatory contact for this inspection will be Michael McCoy of your
licensing organization. If there are any questions about this inspection or the material
requested, please contact the inspector, Paula Goldberg, at 817-860-8168 or by
Pacific Gas and Electric Company -2-
email, paula.goldberg@nrc.gov. In accordance with 10 CFR 2.390 of the NRCs Rules
of Practice, a copy of this letter and its enclosure will be available electronically for
public inspection in the NRC Public Document Room or from the Publicly Available
Records (PARS) component of NRC's document system (ADAMS). ADAMS is
accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the
Public Electronic Reading Room).
Sincerely,
/RA/
Thomas R. Farnholtz, Chief
Engineering Branch 1
Division of Reactor Safety
Docket: 50-275; 50-323
License: DPR-80; DPR-82
Enclosure: Heat Exchanger/Heat Sink
Inspection Documentation Request
cc w/enclosure:
Sierra Club Santa Lucia Chapter
ATTN: Andrew Christie
P.O. Box 15755
San Luis Obispo, CA 93406
Jane Swanson
San Luis Obispo
Mothers for Peace
P.O. Box 3608
San Luis Obispo, CA 93403
James Grant, County Administrative Officer
San Luis Obispo County Board of
Supervisors
1055 Monterey Street, Suite D430
San Luis Obispo, CA 93408
Truman Burns\Robert Kinosian
California Public Utilities Commission
505 Van Ness Ave., Rm. 4102
San Francisco, CA 94102
Pacific Gas and Electric Company -3-
Jennifer Post, Esq.
Pacific Gas & Electric Co.
77 Beale Street, Room 2496
Mail Code B30A
San Francisco, CA 94120
Gary Butner
Chief, Radiologic Health Branch
California Department of Public Health 3
P.O. Box 997414 (MS 7610)
Sacramento, CA 95899-7414
The City Editor of The Tribune
3825 South Higuera Street
P.O. Box 112
San Luis Obispo, CA 93406-0112
James D. Boyd, Commissioner
California Energy Commission
1516 Ninth Street (MS 31)
Sacramento, CA 95814
James R. Becker, Site Vice President
Pacific Gas and Electric Company
Diablo Canyon Nuclear Plant
P.O. Box 56, Mail Station 104/6/601
Avila Beach, CA 93424
Jennifer Tang
Field Representative
United States Senator Barbara Boxer
1700 Montgomery Street, Suite 240
San Francisco, CA 94111
Chief, Technological Hazards Branch
FEMA Region IX
1111 Broadway, Suite 1200
Oakland, CA 94607-4052
Pacific Gas and Electric Company -4-
Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov)
Deputy Regional Administrator (Chuck.Casto@nrc.gov)
DRP Director (Kriss.Kennedy@nrc.gov)
DRP Deputy Director (Anton.Vegel@nrc.gov)
DRS Director (Roy.Caniano@nrc.gov)
DRS Deputy Director (Troy.Pruett@nrc.gov)
Senior Resident Inspector (Michael.Peck@nrc.gov)
Resident Inspector (Tony.Brown@nrc.gov)
Acting Branch Chief, DRP/B (Don.Allen@nrc.gov)
Senior Project Engineer, DRP/B (Rick.Deese@nrc.gov)
Project Engineer, DRP/B (Greg.Tutak@nrc.gov)
Project Engineer, DRP/B (Nestor.Makris@nrc.gov)
Reactor Inspector, DRP/B (Christie.Denissen@nrc.gov)
DC Administrative Assistant (Agnes.Chan@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Project Manager (Fred.Lyon@nrc.gov)
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov)
Regional Counsel (Karla.Fuller@nrc.gov)
Acting Regional Counsel (David.Roth@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov)
OEMail Resource
OEDO RIV Coordinator (Geoffrey.Miller@nrc.gov)
File located:_R:/Reactors/2010/DC2010005 RFI-PAG ML
SUNSI Rev Compl. X Yes No ADAMS X Yes No Reviewer Initials
Publicly Avail X Yes No Sensitive Yes X No Sens. Type Initials
RIV: DRS/EB1/RI C: EB1
PGoldberg TRF for TFarnholtz
/RA/ by email /RA/
10/21/2010 10/21/2010
OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
Heat Exchanger/Heat Sink Inspection Documentation Request
The following heat exchangers/heat sinks have been selected for inspection:
- Component cooling water heat exchangers
Please provide the following documentation prior to the onsite inspection week,
preferably no later than November 22, 2010 .
Test Documents
Copies of the last two heat exchanger tests for the selected heat exchangers (original
test data in work orders or filled in test procedures) and copies of condition reports
associated with the heat exchanger testing
List of condition reports, with descriptions, associated with heat exchanger testing for
the past 3 years (all safety-related heat exchangers)
Copies of applicable heat exchanger test procedures for the selected heat exchangers
including test conditions and acceptance criteria
Copies of chemistry control procedures and results of chemistry sampling and a list of
condition reports concerning service water chemistry problems for the past 3 years
Documents that show the as-found results are recorded, evaluated, and appropriately
dispositioned such that the as-left condition is acceptable
Cleaning Documents
Copies of the last two heat exchanger cleaning results for the selected heat
exchangers, original data (found in filled test procedures or work orders) and condition
reports associated with heat exchanger cleaning
Cleaning procedures with acceptance criteria for the selected heat exchangers
List of condition reports, with descriptions, associated with heat exchanger cleaning for
the past 3 years (all safety-related heat exchangers)
Show that as-found results are recorded, evaluated, and appropriately dispositioned
such that the as-left condition is acceptable
-1- Enclosure
Design Documents
Copies of vendor data sheets and design basis data for the selected heat exchangers
The design margin of the heat exchangers (the maximum heat transfer rate achievable
at design basis conditions compared to the vendors design heat transfer rate)
Copies of calculations which show the heat exchangers will meet their design basis
requirements under worst case conditions. Calculation for the maximum allowable
number of tubes plugged and how many tubes are currently plugged
For room coolers, calculations of the maximum room temperature under accident
conditions and determination that the coolers can maintain less than the maximum
temperature under design conditions
Documents that show that the heat exchangers have been evaluated for potential water
hammer
Instrument uncertainties of the instruments used during testing
Corrective action reports concerning cavitation noise in any heat exchanger system
The most recent audit report of heat exchanger testing and cleaning
The most recent service water flow balance test results, both as-found and as-left
Documents for the Ultimate Heat Sink
Testing documents or other equivalent methods that verify the performance of the
ultimate heat sink and its components
Calculations which shows there is sufficient water capacity for the required 30-day
supply
Procedure or work order that show there is monitoring and trending of sediment build-up
Procedure for periodic performance monitoring of heat transfer capability
Procedures for the periodic performance of the ultimate heat sink structural integrity
Document that verifies adequate chemistry monitoring to ensure adequate pH, calcium,
etc. are maintained
Documents that explains the operation of the ultimate heat sink
-2- Enclosure
A description of the clean up system between the water supply and the ultimate heat
sink
If elements of the ultimate heat sink can freeze during cold weather, documentation or
calculations to show that there will still be sufficient water to meet design conditions
under the worst case freeze conditions
A description of the sump pump that circulates the water in the ultimate heat sink during
freeze conditions, and documentation which show that the sump pump and valves are
safety-related
Calculations of the maximum allowable amount of silt that can be in the ultimate heat
sink, and any condition reports written in the past three years about problems with silt
List of condition reports, with descriptions, of problems with the ultimate heat sink for the
past three years
Corrective Action Documents
List of corrective action documents, with descriptions, for the past 3 years for all
safety-related heat exchangers
Inspector Contact Information:
Paula Goldberg
Reactor Inspector
817-860-8168
paula.goldberg@nrc.gov
Mailing Address:
US NRC Region IV
Attn: Paula Goldberg
612 East Lamar Blvd., Suite 400
Arlington, TX 76011-4125
-3- Enclosure