RS-09-100, Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency

Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency

ML092100162
Person / Time
Site:	LaSalle
Issue date:	07/27/2009
From:	Simpson P Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-09-100
Download: ML092100162 (32)

Text

Exelon Nuclear www.exeloncorp.com 4300 Winfield Road Warrenville, IL 60555 RS-09-100 10 CFR 50.90 July 27, 2009 U. S. Nuclear Regulatory Commission ATTN : Document Control Desk Washington, DC 20555-0001 LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-11 and NPF-18 NRC Docket Nos. 50-373 and 50-374 Exelon.0 Nuclear

Subject:

Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency

References:

1.

Letter from Mr. P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency," dated July 25, 2008

2.

Letter from U. S. NRC to Mr. C. G. Pardee (Exelon Generation Company, LLC), "LaSalle County Station, Units 1 and 2 - Request for Additional Information Related to License Amendment Request to Revise Local Power Range Monitor Calibration Frequency (TAC Nos. MD9414 and MD9415)," dated October 1, 2008

3.

Letter from Mr. P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency," dated October 31, 2008

4.

Letter from Mr. P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency," dated February 17, 2009

5.

Letter from Mr. P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency," dated May 8, 2009

July 27, 2009 U. S. Nuclear Regulatory Commission Page 2 In Reference 1, Exelon Generation Company, LLC (EGC) requested an amendment to the facility operating license for LaSalle County Station (LSCS), Units 1 and 2.

Specifically, the proposed changes will revise Technical Specification (TS) 3.3.1.1, "Reactor Protection System (RPS) Instrumentation," Surveillance Requirement (SR) 3.3.1.1.8 and TS 3.3.1.3, "Oscillation Power Range Monitor (OPRM) Instrumentation,"

SR 3.3.1.3.2 to increase the frequency interval between Local Power Range Monitor (LPRM) calibrations from 1000 effective full power hours (EFPH) to 2000 EFPH.

In Reference 2, the NRC requested that EGC provide additional information in support of their review of Reference 1. The response to this NRC request was provided in Reference 3. Following their review of the responses provided in Reference 3, the NRC requested by email that EGC provide additional information to support their review of Reference 1. The response to that request was provided in Reference 4. In an email dated May 13, 2009, the NRC requested additional clarification of the responses provided in Reference 4. EGC provided the requested clarification in Reference 5.

Based on their review of the responses to these requests, the NRC requested by email, additional clarification of the responses provided in References 3 through 5. The additional clarification is provided in the Attachment 1 to this letter. contains information AREVA considers to be proprietary. AREVA requests that the proprietary information in Attachment 2 be withheld from public disclosure in accordance with the requirements of paragraph (a)(4) of 10 CFR 2.390, "Public inspections, exemptions, requests for withholding." The original signed affidavit supporting this request is provided in Attachment 3 to this letter. Attachment 4 to this letter provides a non-proprietary version of Attachment 2.

EGC has reviewed the information supporting a finding of no significant hazards consideration that was previously provided to the NRC in Reference 1. The additional information provided in this submittal does not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration. No new regulatory commitments are established by this submittal.

If you have any questions concerning this letter, please contact Mr. Timothy A. Byam at (630) 657-2804.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 27

`" day of July 2009.

Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC

July 27, 2009 U. S. Nuclear Regulatory Commission Page 3 Attachments:

1.

Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency

2.

LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information (Proprietary) 3.

AREVA Affidavit

4.

LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information (Non-Proprietary)

Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency NRC RAI :

The response to RAI SRXB-1 does not provide the requested analysis using decay constants specific to the LPRM detectors used in LSCS. It states that "due to the similarity in the characteristics behavior of the detectors used in Grand Gulf and LSCS, the conclusions presented by Grand Gulf showing the fixed decay constant bounds the specific decay constant is applicable to LSCS." It also indicates that the GE LPRM detectors used in Grand Gulf are NA-250 detectors, while the GE LPRM detectors used in LSCS are NA-300 detectors.

Request 1 :

Discuss the differences of the NA-250 and NA-300 detectors.

Response 1 :

The NA-250 detectors (i.e., bottom entry in-core LPRM detectors) are used in BWR-6 reactors (such as Grand Gulf Nuclear Station, River Bend Station, and Clinton Power Station), and the NA-300 detectors (i.e., top entry LPRM assemblies) are used in all other BWR/ABWR reactors (i.e., LaSalle County Station). However, there are some differences between these two types of LPRM's as shown below.

ATTACHMENT 1 The regenerative characteristic is similar between the two LPRM detector types because the blend of U-234 and U-235 is the same. The difference in expected lifetime arises due to the lower initial sensitivity of the NA-250 and the difference in neutron/gamma flux ratio.

Finally, the NA-250 LPRM detectors are individually replaceable from under the reactor vessel. NA-300 LPRM assemblies must be removed from the top, replacing all 4 detectors in the LPRM assembly at the same time.

Request 2:

Address the effects of differences on the uncertainty analysis, and justify that with the different GE LPRM detectors, the Grand Gulf sensitivity study identifying the effects of the fixed and the specific decay constants on the results of uncertainty analysis is applicable to LSCS.

Parameter NA-250 NA-300 Sensitivity (A/nv) 4.8 E-18 7.2 E-18 Perturbation factor 0.629 0.714 ("C" lattice) 0.694 ("D" lattice)

Lifetime Thermal 1.5 E22 1.9 E22 Neutron Fluence (nvt)

ATTACHMENT 1 Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency Response 2 :

Based on discussions with the NRC, it was verified that the intent of this request was to obtain additional clarification on the Exelon Generation Company, LLC (EGC) response to RAI SRXB-1 provided in Reference 1. Specifically, the NRC requested the following information.

"RAI-1 requested the licensee to provide an uncertainty analysis using decay constants specific to the LPRM detectors at the LSCS. The results should demonstrate that the uncertainties based on a fixed decay factor bound that based on the LPRM specific decay factors for the LSCS. In the response, the licensee did not provide the requested analysis. Instead, it summarized the results of its analysis and indicated that : (1) the analysis used in support of the LAR was based on a fixed decay factor of -0.092, which is based on manufacture's data ; and (2) the decay constant used in the CMS will be adjusted to -0.100 to assure that the evaluated LPRM uncertainty is within the bounds of SLMCPR analysis.

With the results of the analysis with the fixed decay constants of either -0.092 or

-0.100, the NRC staff is not sure whether the results are adequate to represent the actual data with values of the decay constants specific to various LPRM detectors at the LSCS. To resolve this RAI satisfactorily, the licensee should provide a discussion or an analysis (such as the requested detector specific decay constant analysis) to show that the assumption used in the analysis in support of the LAR is valid, i.e., the uncertainties based on a fixed decay factor bound that based on the LPRM specific decay factors for the LSCS.

If the licensee uses an existing analysis to support the RAI response, it should address applicability of the existing analysis to the LAR. The RAI response should identify the effects of any plant specific deviations, such as the LPRM exposure data that may be collected from different models of LPRM detectors, or methods for the uncertainty analysis that may be based on different ranges of the LPRM exposures to represent a nominal exposure value."

AREVA NP has completed a calculation of the LPRM specific decay constants (A) for LaSalle County Station (LSCS) Units 1 and 2. These decay constants were calculated based on calibration data provided by EGC.

The LPRM specific decay constants were calculated by AREVA NP based on calibration data provided by EGC for LSCS Units 1 and 2. The same calibration data was previously provided to the NRC in Reference 1. The results of the analysis summarized in Table 1 of Attachment 2 show that for the fixed decay constant, the standard deviations are similar to those for LPRM specific decay constants and bounded by the decay constants assumed for SLMCPR calculations using AREVA NP's NRC approved methods (Reference 2). The results summarized in Table 2 of Attachment 2, show that for the fixed decay constant the changes in standard deviation from short to long calibration interval are similar to that for the LPRM specific decay values and bounded by the limit derived from the change in SLMCPR uncertainties when going from short to long calibration intervals.

References :

ATTACHMENT 1 Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency A summary of the LPRM specific decay constants is provided in Tables 3 and 4 of. LPRM specific decay constant calculated uncertainties were found to be similar to those for a fixed decay constant of -0.1. The uncertainties used in SLMCPR calculations using AREVA NP's NRC approved methodology bound the calculated uncertainties based on both the fixed and the LPRM specific decay constants, thereby supporting extended calibration intervals out to 2675 MWd/MTU with the use of a fixed decay constant of -0.1 for all LPRMs. Therefore, as supported by the AREVA analyses provided in Attachment 2, LSCS will continue to utilize fixed decay constants as described in Reference 1.

1. Letter from Mr. P. R. Simpson (Exelon Generation Company, LLC) to U. S. NRC, "Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency," dated May 8, 2009

2. ANF-524(P)(A) Revision 2 and Supplements 1 and 2, ANF Critical Power Methodology for Boiling Water Reactors, Advanced Nuclear Fuels Corporation, November 1990

ATTACHMENT 3 AREVA Affidavit

STATE OF WASHINGTON )

ss.

COUNTY OF BENTON

)

AFFIDAVIT 1.

My name is Alan B. Meginnis.

I am Manager, Product Licensing, for AREVA NP Inc. and as such I am authorized to execute this Affidavit.

2.

I am familiar with the criteria applied by AREVA NP to determine whether certain AREVA NP information is proprietary.

I am familiar with the policies established by AREVA NP to ensure the proper application of these criteria.

3.

I am familiar with the AREVA NP information contained in the report 51-9116107-001, entitled, "LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information," dated July 2009 and referred to herein as "Document." Information contained in this Document has been classified by AREVA NP as proprietary in accordance with the policies established by AREVA NP for the control and protection of proprietary and confidential information.

4.

This Document contains information of a proprietary and confidential nature and is of the type customarily held in confidence by AREVA NP and not made available to the public. Based on my experience, I am aware that other companies regard information of the kind contained in this Document as proprietary and confidential.

5.

This Document has been made available to the U.S. Nuclear Regulatory Commission in confidence with the request that the information contained in this Document be withheld from public disclosure. The request for withholding of proprietary information is made in accordance with 10 CFR 2.390. The information for which withholding from disclosure is

requested qualifies under 10 CFR 2.390(a)(4) "Trade secrets and commercial or financial information."

6.

The following criteria are customarily applied by AREVA NP to determine whether information should be classified as proprietary :

(a)

The information reveals details of AREVA NP's research and development plans and programs or their results.

(b)

Use of the information by a competitor would permit the competitor to significantly reduce its expenditures, in time or resources, to design, produce, or market a similar product or service.

(c)

The information includes test data or analytical techniques concerning a process, methodology, or component, the application of which results in a competitive advantage for AREVA NP.

(d)

The information reveals certain distinguishing aspects of a process, methodology, or component, the exclusive use of which provides a competitive advantage for AREVA NP in product optimization or marketability.

(e)

The information is vital to a competitive advantage held by AREVA NP, would be helpful to competitors to AREVA NP, and would likely cause substantial harm to the competitive position of AREVA NP.

The information in the Document is considered proprietary for the reasons set forth in paragraphs 6(b), 6(d) and 6(e) above.

7.

In accordance with AREVA NP's policies governing the protection and control of information, proprietary information contained in this Document have been made available, on a limited basis, to others outside AREVA NP only as required and under suitable agreement providing for nondisclosure and limited use of the information.

8.

AREVA NP policy requires that proprietary information be kept in a secured file or area and distributed on a need-to-know basis.

9.

The foregoing statements are true and correct to the best of my knowledge, information, and belief.

SUBSCRIBED before me this day of

~^

'2009.

Susan K. McCoy NOTARY PUBLIC, STATE OF WAS MY COMMISSION EXPIRES: 1/10/12

~' NOTA s

%till 00

% s gUB ~C,:

OR

~~~~11111111 111

ATTACHMENT 4 LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information (Non-Proprietary)

AREVA AREVA N P Inc.,

an AREVA and Siemens company Engineering Information Record Document No:

51

- 9117825 -

000 20004-015 (09/30/2008)

LaSalle LPRIVI Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Page 1 of 21

!A Ft E:VA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Safety Related?

YES 0 NO Does this document contain assumptions requiring verification?

[j YES NO Signature Block 20004-015 (09100/2008)

Note: PILP designates Preparer (P), Lead Preparer (LP)

RILR designates Reviewer (R) ; Lead Reviewer (LR)

AIA-CRF designates Approver (A), Approver of Customer Requested Format A-CRF Name and Title/Discipline Signature P/LP, RILR, AIA-CRF Date Pages/Sections Prepared/Reviewed/

Approved or Comments P. J. Halvorson

Engineer, Core Monitoring P

f All R. G. Grummer Supervisor, Core Monitoring R

2YS~ I All D. E. Garber

Manager, Neutronics Richland A

liv All

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Record of Revision 20004-015 (09/30/2008)

Revision Pages/Sections/

No.

Date Paragraphs Changed 000 7/24/2009 Brief Description / Change Authorization New Document

A R E VDr Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table of Contents 20004-015 (09/30/2008)

Page SIGNATURE BLOCK................................................................................................................................2 RECORD OF REVISION.......................................................................................................................... 3 LIST OF TABLES.....................................................................................................................................5 1.0 INTRODUCTION...........................................................................................................................6

2.0 REFERENCES

..............................................................................................................................6 APPENDIX A :

ADDITIONAL INFORMATION SUPPORTING THE REQUEST FOR A LICENSE AMENDMENT TO REVISE LOCAL POWER RANGE MONITOR CALIBRATION FREQUENCY

......... 7 APPENDIX B :

CALCULATED LPRM SPECIFIC DECAY CONSTANTS

................................................. 10

A R E VGr Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary List of Tables 20004-015 (09/30/2008)

Page TABLE 1 :

SUMMARY

OF THE STANDARD DEVIATIONS....................................................................8 TABLE 2: CHANGE IN STANDARD DEVIATION...................................................................................9 TABLE 3: LASALLE UNIT 1 LPRM SPECIFIC DECAY CONSTANTS...........................................

..10 TABLE 4: LASALLE UNIT 2 LPRM SPECIFIC DECAY CONSTANTS.................................................16

A R E VAS Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company 1.0 INTRODUCTION LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary The proprietary version of this document is 51-9116107-001 (Reference 1).

Appendix A provides the AREVA NP response to the NRC Request for Additional Information (RAI) provided by Exelon Generation Company, LLC (Reference 2). The response is based on calculations performed by AREVA NP (Reference 3).

Appendix B provides the AREVA NP calculated LPRM specific decay constants from Reference 3.

2.0 REFERENCES

1.

51-9116107-001, "LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information", July 2009.

2.

Email from U. S. NRC to Exelon Generation Company, LLC, mentioned in Exelon letter from P.

R. Simpson to NRC, titled "Additional Information Supporting the Request for a License Amendment to Revise Local Power Range Monitor Calibration Frequency", dated May 8, 2009.

3.

32-9115520-000, °LPRM Calibration Uncertainty Analysis for LaSalle - LPRM Specific Decay Coefficients", July 2009.

4. AREVA NP Inc Document Number 38-9088314-000, based on Exelon SEAG 08-000136, "LaSalle Unit 1 and Unit 2 LPRM Data" from 7/29/2008.

5. ANF-524(P)(A) Revision 2 and Supplements 1 and 2, ANF Critical Power Methodology for Boiling Water Reactors, Advanced Nuclear Fuels Corporation, November 1990.

A R E VA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company SRXB-1 LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary APPENDIX A :

ADDITIONAL INFORMATION SUPPORTING THE REQUEST FOR A LICENSE AMENDMENT TO REVISE LOCAL POWER RANGE MONITOR CALIBRATION FREQUENCY RAI-1 requested the licensee to provide an uncertainty analysis using decay constants specific to the LPRM detectors at the LSCS. The results should demonstrate that the uncertainties based on a fixed decay factor bound that based on the LPRM specific decay factors for the LSCS. In the response, the licensee did not provide the requested analysis. Instead, it summarized the results of its analysis and indicated that: (1) the analysis used in support of the LAR was based on a fixed decay factor of -0.092, which is based on manufacture's data; and (2) the decay constant used in the CMS will be adjusted to

-0.100 to assure that the evaluated LPRM uncertainty is within the bounds of SLMCPR analysis.

With the results of the analysis with the fixed decay constants of either -0.092 or -0.100, the NRC staff is not sure whether the results are adequate to represent the actual data with values of the decay constants specific to various LPRM detectors at the LSCS. To resolve this RAI satisfactorily, the licensee should provide a discussion or an analysis (such as the requested detector specific decay constant analysis) to show that the assumption used in the analysis in support of the LAR is valid, i.e.,

the uncertainties based on a fixed decay factor bound that based on the LPRM specific decay factors for the LSCS. If the licensee uses an existing analysis to support the RAI response, it should address applicability of the existing analysis to the LAR. The RAI response should identify the effects of any plant specific deviations, such as the LPRM exposure data that may be collected from different models of LPRM detectors, or methods for the uncertainty analysis that may be based on different ranges of the LPRM exposures to represent a nominal exposure value.

A: R E VA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company

RESPONSE

LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary LPRM specific decay constants were calculated by AREVA NP based on calibration data provided by Exelon for LSCS units 1 and 2 (Reference 4). The results of the analysis summarized in Table 1 show that for the fixed -0.1 A value, the standard deviations are similar to those for LPRM specific A values and less than that assumed for SLMCPR calculations (4.3% for extended calibration intervals) using AREVA NP's NRC approved methods (Reference 5),

Table 1 : Summary of the Standard Deviations

Ft R E VA Document No. : 51-911.7825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary The results summarized in Table 2 show that for the fixed -0.1 A value, the changes in standard deviation from short to long calibration interval are similar to that for LPRM specific A values and less than 0.9% (a limit derived from the change in SLMCPR uncertainties when going from short to long calibration intervals).

Table 2 Change in Standard Deviation LPRM specific decay constant calculated uncertainties were found to be similar to those far fixed -0.1 decay constants. The uncertainties used in SLMCPR calculations using AREVA NP's NRC approved methodology bound the calculated uncertainties based on both the fixed -0.1 and the LPRM specific decay constants, thereby supporting extended calibration intervals out to 2675 MWd/MTU with the use of a fixed -0.1 decay constant for all LPRMs.

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary APPENDIX B:

CALCULATED LPRM SPECIFIC DECAY CONSTANTS The following LPRM specific decay constants were calculated by AREVA NP as part of Reference 3.

Note that when only one data point was available, a fixed -0.1 decay constant was assumed.

Table 3: LaSalle Unit 1 LPRM Specific Decay Constants String #

LPRM Leve 1

L-2693 A

-0.064536 1

L-2693 B

-0.106486 1

L-2693 C

-0.091594 1

L-2693 D

-0.095251 2

K-7089 A

-0.103161 2

K-7089 B

-0.118656 2

K-7089 C

-0.125343 2

K-7089 D

-0.113100 3

L-2689 A

-0.086421 3

L-2689 B

-0.094950 3

L-2689 C

-0.091229 3

L-2689 D

-0.095697 4

K-7091 A

-0.099445 4

K-7091 B

-0.117011 4

K-7091 C

-0.116669 4

K-7091 D

-0.086173 5

L-2692 A

-0.094847 5

L-2692 B

-0.094427 5

L-2692 C

-0.090860 5

L-2692 D

-0.097480 6

03s61368 A

-0.035989 6

03s61368 B

-0.032658 6

03s61368 C

-0.009494 6

03s61368 D

0.011154

6t R E VDr Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 3 : LaSalle Unit 1 LPRM Specific Decay Constants (continued)

Page 11 String #

LPRM Level A

7 OOs19542 A

-0.117702 7

OOs19542 B

-0.109943 7

OOs19542 C

-0.140575 7

OOs19542 D

-0.126615 8

OOs19547 A

-0.105861 8

OOs19547 B

-0.115672 8

OOs19547 C

-0.122204 8

OOs19547 D

-0.125258 9

03s61362 A

-0.050153 9

03s61362 B

-0.042240 9

03s61362 C

-0.017146 9

03s61362 D

-0.013969 10 05s105126 A

-0.183701 10 05s105126 B

-0.100000 10 05s105126 C

-0.100000 10 05s105126 D

-0.006328 11 01 s19549 A

-0.127609 11 01s19549 B

-0.139663 11 01s19549 C

-0.146763 11 01s19549 D

-0.074092 12 03s61367 A

-0.082153 12 03s61367 B

-0.087174 12 03s61367 C

-0.051989 12 03s61367 D

0.030138 13 04s82833 A

-0.100000 13 04s82833 B

-0.100000 13 04s82833 C

-0.100000 13 04s82833 D

-0.100000 14 K-7092 A

-0.096060 14 K-7092 B

-0.121862

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 3 : LaSalle Unit 1 LPRM Specific Decay Constants (continued)

Page 12 String #

LPRM Level J1 14 K-7092 C

-0.121134 14 K-7092 D

-0.122039 15 99SO6335 A

-0.092356 15 99SO6335 B

-0.104541 15 99SO6335 C

-0.087621 15 99SO6335 D

-0.112769 16 99SO6332 A

-0.095072 16 99SO6332 B

-0.087310 16 99SO6332 C

-0.097196 16 99SO6332 D

-0.128564 17 L-2703 A

-0.098261 17 L-2703 B

-0.099973 17 L-2703 C

-0.100135 17 L-2703 D

-0.103243 18 03s61361 A

-0.047674 18 03s61361 B

-0.028788 18 03s61361 C

-0.040312 18 03s61361 D

-0.024765 19 95SO1707 A

-0.104571 19 95SO1707 B

-0.115412 19 95SO1707 C

-0.118913 19 95SO1707 D

-0.107450 20 05s105131 A

-0.100000 20 05s105131 B

-0.100000 20 05s105131 C

0.054445 20 05s105131 D

-0.100000 21 99SO6333 A

-0.072533 21 99SO6333 B

-0.110906 21 99SO6333 C

-0.103025 21 99SO6333 D

-0.086343 22 00s10723 A

-0.115570

A R E VA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 3 : LaSalle Unit 1 LPRM Specific Decay Constants (continued)

Page 13 String #

LPRM Level 22 OOs10723 B

-0.124759 22 OOs10723 C

-0.136556 22 OOs10723 D

-0.134821 23 03s61364 A

-0.080289 23 03s61364 B

-0.055041 23 03s61364 C

-0.052231 23 03s61364 D

0.034800 24 L-2708 A

-0.084316 24 L-2708 B

-0.087613 24 L-2708 C

-0.089175 24 L-2708 D

-0.104492 25 OOs19544 A

-0.107273 25 OOs19544 B

-0.119338 25 OOs19544 C

-0.146700 25 OOs19544 D

-0.118752 26 050 05132 A

0.082693 26 050 05132 B

-0.100000 26 050 05132 C

0.026605 26 050 05132 D

-0.100000 27 03s61359 A

-0.044887 27 03s61359 B

-0.037792 27 03s61359 C

-0.025389 27 03s61359 D

0.019643 28 OOs19546 A

-0.102962 28 OOs19546 B

-0.120880 28 OOs19546 C

-0.129257 28 OOs19546 D

-0.117156 29 050 05134 A

-0.051082 29 05s105134 B

-0.001915 29 050 05134 C

-0.100000 29 050 05134 D

0.100000

Lt R E VA Document No.: 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 3: LaSalle Unit 1 LPRM Specific Decay Constants (continued)

Page 1 4 String #

LPRM Level A

30 05x105125 A

-0.080014 30 05x105125 B

-0.100000 30 05x105125 C

0.187149 30 05x105125 D

0.124960 31 95SO1703 A

-0.090085 31 95SO1703 B

-0.112169 31 95SO1703 C

-0.112621 31 95SO1703 D

-0.103891 32 05s105130 A

-0.100000 32 05x105130 B

-0.100000 32 05x105130 C

-0.100000 32 05x105130 D

-0.628003 33 OOs19545 A

-0.116050 33 OOs19545 B

-0.112784 33 OOs19545 C

-0.133068 33 OOs 19545 D

-0.120433 34 03x61360 A

-0.032412 34 03x61360 B

-0.028803 34 03x61360 C

-0.050897 34 03x61360 D

-0.000093 35 99SO6334 A

-0.085660 35 99SO6334 B

-0.103170 35 99SO6334 C

-0.123684 35 99SO6334 D

-0.132831 36 03x61365 A

-0.052479 36 03x61365 B

0.019160 36 03x61365 C

-0.043374 36 03x61365 D

-0.053376 37 OOs19548 A

-0.098922 37 OOs19548 B

-0.111215 37 OOs19548 C

-0.120284

AE R E VAc Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension -AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 3: LaSalle Unit 1 LPRM Specific Decay Constants (continued)

String #

LPRM Level A

37 OOs19548 D

-0.11836 38 95SO1706 A

-0.113298 38 95SO1706 B

-0.144629 38 95SO1706 C

-0.106089 38 95SO1706 D

-0.100603 39 05x105129 A

-0.020860 39 05x105129 B

-0.100000 39 05x105129 C

-0.100000 39 05x105129 D

-0.007733 40 9501704 A

-0.105916 40 95x01704 B

-0.124834 40 9501704 C

-0.118290 40 9501704 D

-0.066715 41 OOs19543 A

-0.104431 41 OOs19543 B

-0.127773 41 OOs19543 C

-0.145729 41 OOs19543 D

-0.145466 42 03x61363 A

-0.022097 42 03x61363 B

-0.042699 42 03x61363 C

-0.017005 42 03x61363 D

-0.003905 43 95SO1705 A

-0.081959 43 95SO1705 B

-0.106993 43 95SO1705 C

-0.114494 43 95SO1705 D

-0.101785

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4: LaSalle Unit 2 LPRM Specific Decay Constants String#

LPRM Level 1

96SO0501 A

-0.128402 1

96SO0501 C

-0.077116 1

96SO0501 D

-0.002917 2

04s82827 A

0.004877 2

04s82827 B

-0.100000 2

04s82827 C

0.000477 2

04s82827 D

-0.100000 3

02S41541 A

-0.032238 3

02S41541 B

-0.046920 3

02S41541 C

-0.062628 3

02S41541 D

-0.055267 4

M5419 A

-0.109844 4

M5419 B

-0.132587 4

M5419 C

-0.109462 5

04s82826 A

-0.018926 5

04s82826 B

-0.100000 5

04s82826 C

-0.100000 5

04s82826 D

-0.100000 6

02S41547 A

-0.031684 6

02S41547 B

-0.066373 6

02S41547 C

-0.068793 6

02S41547 D

-0.040241 7

02S41544 A

-0.025824 7

02S41544 B

-0.055191 7

02S41544 C

-0.069592 7

02S41544 D

0.009082

A R E V6ti Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4 : LaSalle Unit 2 LPRM Specific Decay Constants (continued)

Page 17 String #

LPRM Level 8

OOs10719 A

-0.096276 8

OOs10719 B

-0.106666 8

OOs10719 C

-0.123691 8

OOs10719 D

-0.134629 9

02S41555 A

-0.025624 9

02S41555 B

-0.048960 9

02S41555 C

-0.052324 9

02S41555 D

-0.043676 10 04s82829 A

-0.100000 10 04s82829 B

0.004690 10 04s82829 C

-0.100000 10 04s82829 D

-0.100000 11 02S41548 A

-0.042397 11 02S41548 B

-0.035969 11 02S41548 C

-0.059606 11 02S41548 D

-0.013613 12 02S41553 A

-0.058491 12 02S41553 B

-0.050528 12 02S41553 C

-0.072370 12 02S41553 D

-0.005328 13 04s82825 A

-0.020434 13 04s82825 B

-0.018217 13 04s82825 C

-0.007795 13 04s82825 D

-0.013529 14 02S41542 A

-0.026554 14 02S41542 B

-0.027432 14 02S41542 C

-0.041304 14 02S41542 D

-0.058319 15 96SO0500 A

-0.108939 15 96SO0500 I B

-0.116905

1k R E VA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4 : LaSalle Unit 2 LPRM Specific Decay Constants (continued)

Page 18 String #

LPRM Level A

15 96SO0500 C

-0.104087 15 96SO0500 D

-0.140608 16 02S41549 A

-0.027717 16 02S41549 B

-0.050442 16 02S41549 C

-0.032585 16 02S41549 D

-0.030494 17 M5421 A

-0.113823 17 M5421 B

-0.111249 17 M5421 C

-0.113705 17 M5421 D

-0.125022 18 03s61366 A

0.006946 18 03s61366 B

0.004340 18 03s61366 C

0.033430 18 03s61366 D

-0.051786 19 02S41545 A

-0.021139 19 02S41545 B

-0.073859 19 02S41545 C

-0.044153 19 02S41545 D

-0.013193 20 OOs10717 A

-0.118184 20 OOs10717 B

-0.124194 20 OOs10717 C

-0.149457 20 OOs10717 D

-0.161501 21 96SO0497 A

-0.091203 21 96SO0497 B

-0.101009 21 96SO0497 C

-0.113382 21 96SO0497 D

-0.101506 22 OOs10720 B

-0.117029 22 OOs10720 C

-0.125709 22 OOs10720 D

-0.146380 23 02S41550 A

-0.028797 23 02S41550 B

-0.090929

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4: LaSalle Unit 2 LPRM Specific Decay Constants (continued)

Page 1 9 String #

LPRM Level 23 02S41550 C

-0.057405 23 02S41550 D

-0.039269 24 04s82831 A

0.033380 24 04s82831 B

-0.100000 24 04s82831 C

-0.001072 24 04s82831 D

-0.100000 25 99sO6337 A

-0.095995 25 99sO6337 B

-0.092305 25 99sO6337 C

-0.075206 25 99sO6337 D

-0.123675 26 02S41551 A

-0.043874 26 02S41551 B

-0.067674 26 02S41551 C

-0.047748 26 02S41551 D

-0.028564 27 96SO0498 A

-0.112542 27 96SO0498 B

-0.119067 27 96SO0498 C

-0.095677 27 96SO0498 D

-0.130485 28 OOs10718 A

-0.121753 28 OOs10718 B

-0.130258 28 OOs10718 C

-0.135660 28 OOs10718 D

-0.154431 29 02S41554 A

-0.032403 29 02S41554 B

-0.055617 29 02S41554 C

-0.060775 29 02S41554 D

-0.015547 30 OOs10722 A

-0.127022 30 OOs10722 B

-0.127304 30 OOs10722 C

-0.136776 30 00s10722 D

-0.162451 31 04s82828 A

0.009691

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4: LaSalle Unit 2 LPRM Specific Decay Constants (continued)

Page 20 String #

LPRM Level 31 04s82828 B

0.177377 31 04s82828 C

-0.022257 31 04s82828 D

-0.047554 32 04s82832 A

0.018973 32 04s82832 B

-0.100000 32 04s82832 C

-0.019143 32 04s82832 D

0.049807 33 02S41552 A

-0.025781 33 02S41552 B

-0.058490 33 02S41552 C

-0.006415 33 02S41552 D

-0.028016 34 OOs10716 A

-0.125433 34 OOs10716 B

-0.126516 34 OOs10716 C

-0.142778 34 OOs10716 D

-0.138240 35 96SO0496 A

-0.096850 35 96SO0496 B

-0.115608 35 96SO0496 C

-0.108348 35 96SO0496 D

-0.104640 36 04s82830 A

-0.061452 36 04s82830 B

-0.043099 36 04s82830 C

-0.100000 36 04s82830 D

0.015944 37 OOs10721 A

-0.128472 37 OOs10721 B

-0.137537 37 OOs10721 C

-0.146516 37 OOs10721 D

-0.172771 38 M5420 A

-0.116923 38 M5420 B

-0.094671 38 M5420 C

-0.092715 38 M5420 ~D

-0.063357

AREVA Document No. : 51-9117825-000 AREVA NP Inc.,

an AREVA and Siemens company LaSalle LPRM Calibration Extension - AREVA Responses to NRC Follow-up Request for Additional Information, Non-Proprietary Table 4: LaSalle Unit 2 LPRM Specific Decay Constants (continued)

String #

LPRM Level 1

39 04s82824 A

-0.062507 39 04s82824 B

-0.100000 39 04s82824 C

-0.100000 39 04s82824 D

0.002216 40 02S41546 A

-0.021861 40 02S41546 B

-0.098940 40 02S41546 C

-0.063741 40 02S41546 D

-0.035127 41 02S41543 A

-0.028083 41 02S41543 B

-0.086842 41 02S41543 C

-0.039777 41 02S41543 D

-0.058729 42 02S41540 A

-0.035301 42 02S41540 B

-0.094364 42 02S41540 C

-0.060642 42 02S41540 D

-0.030513 43 96SO0499 A

-0.147633 43 96SO0499 B

-0.096561 43 96SO0499 C

-0.080596 43 96SO0499 D

-0.007621