ML043620015

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Trojan Nuclear Plant Final Survey Report for the Fuel Building Interior
ML043620015
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 12/15/2004
From: Quennoz S
Portland General Electric Co
To:
Document Control Desk, NRC/FSME
References
+sispmjr200507, VPN-073-2004
Download: ML043620015 (11)
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Text

1/N e PGE Portland General Electric Company Trojan Nuclear Plant 71760 ColumbiaRizer If a December 15, 2004

\ / Rainier,OR 97048 (503) 556-3713 VPN-073-2004 Trojan Nuclear Plant License NPF-1 Docket 50-344 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 Trojan Nuclear Plant Final Survey Report for the Fuel Building Interior The enclosure to this letter provides Portland General Electric Company's Final Survey Report for the Trojan Nuclear Plant Fuel Building Interior. The report is presented in two volumes. The first volume is the main report documenting the results and conclusions of the final survey of the Fuel Building Interior. The second volume is a supplement to the main report that provides scan measurement data and survey maps documenting where scan surveys were performed in each survey unit.

Data collection for the final survey of these areas began in July 2002 and was completed in October 2004. The report documents the results and conclusions of the survey, and was prepared in accordance with guidance and requirements contained in the following:

  • Portland General Electric Topical Report PGE 1061, Trojan Nuclear Plant Defueled Safety Analysis Report and License Termination Plan (PGE-1 078),

[Superceded by NUREG 1757 in September 2003],

  • NUREG 1575, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM), Section 8.6, and
  • NUREG 1757, Volume 2, ConsolidatedNMSS DecommissioningGuidance -

Characterization,Survey, andDetermination ofRadiological Criteria, Section 4.5 The attachment to this letter indicates where each of the requirements in the documents listed above is addressed.

  • ~A Am\5 Connecting People, Power and Possibilities

VPN-073-2004 December 15,2004 Page2of2 The data collected during final survey demonstrate that each survey unit of the Fuel Building Interior meets the radiological criteria for unrestricted use specified in 10 CFR 20.1402. On that basis, Portland General Electric Company has concluded that each of these areas meets regulatory requirements for release to unrestricted use.

To support Portland General Electric Company's plans to have its Trojan Nuclear Plant license terminated in 2005 per 10 CFR 50.82(a)(I 1), it is requested that the Nuclear Regulatory Commission review this data package for acceptance of this portion of the site final radiological survey.

Should you have any questions concerning this matter, please contact Mr. Jerry D. Reid of my staff at (503) 556-6474.

Sincerely, Stephen M. Quennoz Vice President, Generation Attachment Enclosure c: Director, NRC Region IV/DNMS J. T. Buckley, NMSS/DWM/DCB (3 Copies)

R. J. Evans, NRC Region IV/DNMS/FCDB D. Stewart-Smith, ODOE A. Bless, ODOE M. Dibblee, EFSC

Attachment VPN-073-2004 December 15, 2004 Page 1 of 8 Guidance/Requirement Source Where Addressed

... a final survey report will be prepared PGE 1061 -Trojan License Final Survey Report - Section 1.1, Section 5 which summarizes the data and documents Termination Plan - Section 4.1.3 the conclusion that the TNP facility and site meet the 10 CFR 20.1402 release criteria and can be released for unrestricted use.

... and in the final survey report. The PGE 1061 - Trojan License Final Survey Report - Section 1.1, Section 5 final survey report is prepared which Termination Plan - Section 4.2.5.5 summarizes the data and states the conclusions.

The report will provide a summary of the PGE 1061 - Trojan License Final Survey Report - Section 4.2.4, Table 4-2 ALARA evaluations. Termination Plan - Section 4.7.3 The report will provide a summary of the PGE 1061 -Trojan License Final Survey Report-Section 3, Table 3-1, survey data results. Termination Plan - Section 4.7.3 Table 3-2 The report will provide a summary of the PGE 1061 - Trojan License Final Survey Report -Section 5, Table 4-2 overall conclusions. Termination Plan - Section 4.7.3 Information such as the number and type PGE 1061 - Trojan License Final Survey Report - Section 3, of measurements ...will be included in the Termination Plan - Section 4.7.3 Table 3-1, Appendices B through E report.

Information such as basic statistical PGE 1061 - Trojan License Final Survey Report - Appendices B through E quantities.. .will be included in the report. Termination Plan - Section 4.7.3 Information such as statistical test PGE 1061 - Trojan License Final Survey Report - Appendices B through E results .. will be included in the report. Termination Plan - Section 4.7.3 The information should include: NUREG 1727 - NMSS Final Survey Report -Section 3, Table 3-1 An overview of the results of the final Decommissioning Standard Review status survey. Plan, Rev 0, Section 14.5

Attachment VPN-073-2004 December 15, 2004 Page2of8 Guidance/Requirement Source Where Addressed The information should include: NUREG 1727 - NMSS N/A. Survey performed in accordance with A discussion of any changes that were Decommissioning Standard Review PGE 1061 - Trojan License Termination Plan.

made in the final status survey from what Plan, Rev 0, Section 14.5 was proposed in the Decommissioning Plan or other prior submittals.

The information should include: A NUREG 1727-NMSS Final Survey Report-Section 2.3.2.3, Section description of the method by which the Decommissioning Standard Review 4.1.3.3 number of samples was determined for Plan, Rev 0, Section 14.5 each survey unit.

The information should include: A NUREG 1727 -NMSS PGE 1061 - Trojan License Termination Plan -

summary of the values used to determine Decommissioning Standard Review Section 4.4.3.1, Appendix 4-2 the number of samples and a justification Plan, Rev 0, Section 14.5 for these values.

The information should include: NUREG 1727 - NMSS Final Survey Report - Appendices B through E The survey results for each survey unit Decommissioning Standard Review including: The number of samples taken Plan, Rev 0, Section 14.5 for each survey unit.

The information should include: NUREG 1727 - NMSS Final Survey Report - Appendices B through E The survey results for each survey unit Decommissioning Standard Review including: A map or drawing of the Plan, Rev 0, Section 14.5 survey unit showing the reference system and random start systematic sample locations for Class I and Class 2 survey units, and random locations shown for Class 3 survey units and reference areas.

Attachment VPN-073-2004 December 15, 2004 Page 3 of 8 Guidance/Requirement Source Where Addressed The information should include: The NUREG 1727 - NMSS Final Survey Report - Appendices B through E survey results for each survey unit Decommissioning Standard Review including: The measured sample Plan, Rev 0, Section 14.5 concentrations.

The information should include: NUREG 1727 - NMSS Final Survey Report - Appendices B through E The survey results for each survey unit Decommissioning Standard Review including: The statistical evaluation of the Plan, Rev 0, Section 14.5 measured concentrations.

The information should include: NUREG 1727 - NMSS Final Survey Report - Appendices B through E, The survey results for each survey unit Decommissioning Standard Review Supplements including: Judgmental and miscellaneous Plan, Rev 0, Section 14.5 sample data sets reported separately from those samples collected for performing the statistical evaluation.

The information should include: NUREG 1727 - NMSS Final Survey Report - Section 2.4.2, Table 3-1, The survey results for each survey unit Decommissioning Standard Review Table 3-2, Appendices B through E including: A discussion of anomalous Plan, Rev 0, Section 14.5 data including any areas of elevated direct radiation detected during scanning that exceeded the investigation level or measurement locations in excess of the DCGLW.__

Attachment VPN-073-2004 December 15, 2004 Page4of8 Guidance/Requirement Source Where Addressed The information should include: NUREG 1727 - NMSS Final Survey Report - Section 5, Table 4-2 The survey results for each survey unit Decommissioning Standard Review including: A statement that a given Plan, Rev 0, Section 14.5 survey unit satisfied the DCGL, and the elevated measurement comparison if any sample points exceeded the DCGL~v.

The information should include: A NUREG 1727 - NMSS Final Survey Report - N/A description of any changes in initial Decommissioning Standard Review survey unit assumptions relative to the Plan, Rev 0, Section 14.5 extent of residual radioactivity.

The information should include: NUREG 1727 - NMSS N/A If a survey unit fails, a description of the Decommissioning Standard Review investigation conducted to ascertain the Plan, Rev 0, Section 14.5 reason for the failure and a discussion of the impact that the failure has on the conclusion that the facility is ready for final radiological surveys.

The information should include: NUREG 1727- NMSS N/A If a survey unit fails, a discussion of the Decommissioning Standard Review impact that the reason for the failure has Plan, Rev 0, Section 14.5 on other survey unit information.

Documentation of the final status survey NUREG 1575 MARSSIM - Section Final Survey Report - Table 4-2 should provide a complete and 8.6 unambiguous record of the radiological status of the survey unit relative to the established DCGLs.

Attachment VPN-073-2004 December 15, 2004 Page 5 of 8 Guidance/Requirement Source Where Addressed Sufficient data and information should be NUREG 1575 MARSSIM - Section Final Survey Report - Appendices B through E, provided to enable an independent 8.6 Supplements evaluation of the results of the survey including repeating measurements at some future time.

The document should describe the NUREG 1575 MARSSIM - Section Final Survey Report - Section 2.2 instrumentation or analytical methods 8.6 used.

The document should describe how the NUREG 1575 MARSSIM - Section Final Survey Report - Section 2.4.3 data were converted into DCGL units. 8.6 The document should describe the process NUREG 1575 MARSSIM - Section Final Survey Report - Section 4.2 of comparing the results to the DCGLs. 8.6 The document should describe the process NUREG 1575 MARSSIM - Section Final Survey Report - Section 4.1 of determining that the data quality 8.6 objectives were met.

The results of actions taken as a NUREG 1575 MARSSIM - Section Final Survey Report - Section 2.4.2, Table 3-2, consequence of individual measurements 8.6 Appendices B through E or sample concentrations in excess of the investigation levels should be reported together with any additional data, remediation, or re-surveys performed to demonstrate that issues concerning potential areas of elevated activity were resolved.

Attachment VPN-073-2004 December 15, 2004 Page 6 of 8 Guidance/Requirement Source Where Addressed The results of the data evaluation using NUREG 1575 MARSSIM - Section Final Survey Report- Section 4.1.3 statistical methods to determine if release 8.6 criteria were satisfied should be described.

The information should include: An NUREG 1757 Volume 2 Consolidated Final Survey Report - Section 3, Table 3-1 overview of the results of the FSS. NMSS Decommissioning Guidance -

Section 4.5 The information should include: A NUREG 1757 Volume 2 Consolidated Final Survey Report - Section 1.3.2 (Appendices B summary of the DCGLs for the facility (if NMSS Decommissioning Guidance - through E also list the DCGL for each survey unit.)

DCGLs are used). Section 4.5 The information should include: A NUREG 1757 Volume 2 Consolidated N/A. Survey performed in accordance with discussion of any changes that were made NMSS Decommissioning Guidance - PGE 1061 - Trojan License Termination Plan.

in the FSS from what was proposed in the Section 4.5 DP or other prior submittals.

The information should include: A NUREG 1757 Volume 2 Consolidated Final Survey Report - Section 2.3.2.3, Section description of the method by which the NMSS Decommissioning Guidance - 4.1.3.3 number of samples was determined for Section 4.5 each survey unit.

The information should include: A NUREG 1757 Volume 2 Consolidated PGE 1061 -Trojan License Termination Plan-summary of the values used to determine NMSS Decommissioning Guidance - Section 4.4.3.1, Appendix 4-2 the number of samples and a justification Section 4.5 for these values.

The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Appendices B through E survey results for each survey unit NMSS Decommissioning Guidance -

including the following: The number of Section 4.5 samples .taken for each survey unit. III

Attachment VPN-073-2004 December 15, 2004 Page7of8 Guidance/Requirement Source Where Addressed The information should include: NUREG 1757 Volume 2 Consolidated Final Survey Report - Sections 3.1, 3.2, 3.3, and 3.4, The survey results for each survey unit NMSS Decommissioning Guidance - Appendices B through E, Supplements including the following: a description of Section 4.5 the survey unit, including (a) a map or drawing of the survey unit showing the reference system and random start systematic sample locations for Class 1 and Class 2 survey units, and random locations shown for Class 3 survey units and reference areas, (b) discussion of remedial actions and unique features, and (c) areas scanned for Class 2 and 3 survey units.

The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Appendices B through E survey results for each survey unit NMSS Decommissioning Guidance -

including the following: the measured Section 4.5 sample concentrations, in units that are comparable to the DCGLs.

The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Appendices B through E survey results for each survey unit NMSS Decommissioning Guidance -

including the following: the statistical Section 4.5 evaluation of the measured concentrations.

The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Appendices B through E, survey results for each survey unit NMSS Decommissioning Guidance - Supplements including the following: judgmental and Section 4.5 miscellaneous sample data sets reported separately from those samples collected for performing the statistical evaluation.

Attachment VPN-073-2004 December 15, 2004 Page 8 of 8 Guidance/Requirement Source Where Addressed The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Section 2.4.2, Table 3-2, survey results for each survey unit NMSS Decommissioning Guidance - Appendices B through E, Supplements including the following: a discussion of Section 4.5 anomalous data including any areas of elevated direct radiation detected during scanning that exceeded the investigation level or any measurement locations in excess of DCGLw.

The information should include: The NUREG 1757 Volume 2 Consolidated Final Survey Report - Table 4-2 survey results for each survey unit NMSS Decommissioning Guidance -

including the following: a statement that a Section 4.5 given survey unit satisfied the DCGLw and the elevated measurement comparison if any sample points exceeded the DCGLw.

The information should include: A NUREG 1757 Volume 2 Consolidated Final Survey Report - N/A description of any changes in initial NMSS Decommissioning Guidance -

survey unit assumptions relative to the Section 4.5 extent of residual radioactivity (e.g.,

material not accounted for during site characterization).

The information should include: A NUREG 1757 Volume 2 Consolidated Final Survey Report - Section 4.2.4, Table 4-2 description of how ALARA practices NMSS Decommissioning Guidance -

were employed to achieve final activity Section 4.5 levels.

Enclosure to VPN-073-2004 December 15, 2004

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