ML13260A253: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(StriderTol Bot change)
 
Line 1: Line 1:
{{Adams
#REDIRECT [[ET 13-0029, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident - 1.5 Year Response for CEUS Sites]]
| number = ML13260A253
| issue date = 09/12/2013
| title = Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident - 1.5 Year Response for CEUS Sites
| author name = Broschak J
| author affiliation = Wolf Creek Nuclear Operating Corp
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000482
| license number =
| contact person =
| case reference number = ET 13-0029
| document type = Letter
| page count = 7
| project =
| stage = Response to RAI
}}
 
=Text=
{{#Wiki_filter:A W4 LF CREEK    'NUCLEAR OPERATING CORPORATION September 12, 2013 John P. Broschak Vice President Engineering ET 13-0029 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
 
==Reference:==
: 1)  Letter dated March 12, 2012, from E. J. Leeds and M. R. Johnson, USNRC, to M. W. Sunseri, WCNOC, "Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f)
Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force (NTTF) Review of Insights from the Fukushima Dai-ichi Accident"
: 2)  Letter dated February 15, 2013, from D. L. Skeen, USNRC, to J. E.
Pollock, NEI, "Endorsement of EPRI Final Draft Report 1025287, "Seismic Evaluation Guidance""
: 3)  Electric Power Research Institute Report 1025287, "Seismic Evaluation Guidance: Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic"
: 4)  Letter dated April 9, 2013, from A. R. Pietrangelo, NEI, to D. L. Skeen, USNRC, "Proposed Path Forward for NTTF Recommendation 2.1:
Seismic Reevaluations"
: 5)  Letter dated May 7, 2013, from E. J. Leeds, USNRC, to J. E. Pollock, NEI, "EPRI Final Draft Report XXXXXX, "Seismic Evaluation Guidance: Augmented Approach for the Resolution of Near-Term Task Force Recommendation 2.1: Seismic," as an Acceptable Alternative to the March 12, 2012, Information Request for Seismic Reevaluations"
 
==Subject:==
Docket No. 50-482: Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident - 1.5 Year Response for CEUS Sites Gentlemen:
On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status.
P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HC/VET
 
ET 13-0029 Page 2 of 3  of Reference 1 requested each addressee in the Central and Eastern United States (CEUS) to submit a written response consistent with the requested seismic hazard evaluation information (items 1 through 7) within 1.5 years. On February 15, 2013, NRC issued Reference 2, endorsing the Reference 3 industry guidance for responding to Reference 1.
Section 4 of Reference 3 identifies the detailed information to be included in the seismic hazard evaluation submittals.
On April 9, 2013, Nuclear Energy Institute (NEI) submitted Reference 4 to NRC, requesting NRC agreement to delay submittal of some of the CEUS seismic hazard evaluation information so that an update to the Electric Power Research Institute (EPRI) (2004, 2006) ground motion attenuation model could be completed and used to develop that information. NEI proposed that descriptions of subsurface materials and properties and base case velocity profiles (items 3a and 3b in Section 4 of Reference 3) be submitted to NRC by September 12, 2013, with the remaining seismic hazard and screening information submitted to NRC by March 31, 2014. In Reference 5, NRC agreed with this recommendation.
The attachment contains the requested descriptions of subsurface materials and properties and base case velocity profiles for WCNOC. The information provided in the attachment to this letter is considered an interim product of seismic hazard development efforts being performed for the industry by EPRI. The complete and final seismic hazard reports for WCNOC will be provided to the NRC in our seismic hazard submittals by March 31, 2014 in accordance with Reference 5.
This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4085, or Mr. Michael J. Westman at (620) 364-4009.
Sincerely, John P. Broschak JPB/rlt Attachment cc:    C. F. Lyon (NRC), w/a N. F. O'Keefe (NRC), w/a S. A. Reynolds (NRC), w/a Senior Resident Inspector (NRC), w/a
 
ET 13-0029 Page 3 of 3 STATE OF KANSAS              ))ss COUNTY OF COFFEY John P. Broschak, of lawful age, being first duly sworn upon oath says that he is Vice President Engineering of Wolf Creek Nuclear Operating Corporation; that he has read the foregoing document and knows the contents thereof; that he has executed the same for and on behalf of said Corporation with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.
By Jo      . Broschak Vi    resident Engineering SUBSCRIBED and sworn to before me this        12-    day of 1,                  2013.
Notary Public 4?          Th~2/~4 4~;~    RHONDA L.TIEMEYER o-FICIALS  MY COWSSION EXPIRES I ...SEA :.."
Expiration Date (_OA  / ./?A),f        /"
 
Attachment to ET 13-0029 Page 1 of 4 Near Term Task Force Recommendation 2.1: Seismic - 1.5 Year Response of Central and Eastern United States (CEUS) Plants On April 9, 2013, Nuclear Energy Institute (NEI) submitted Reference 1 to NRC, requesting NRC agreement to delay submittal of some of the CEUS seismic hazard evaluation information so that an update to the Electric Power Research Institute (EPRI) (2004, 2006) ground motion attenuation model could be completed and used to develop that information. NEI proposed that descriptions of subsurface materials and properties and base case velocity profiles (items 3a and 3b in Section 4 of Reference 2) be submitted to NRC by September 12, 2013, with the remaining seismic hazard and screening information submitted to NRC by March 31, 2014. In Reference 3, NRC agreed with this recommendation.
Wolf Creek Generating Station (WCGS) Subsurface Materials and Properties and Base Case Velocity Profiles The basic information used to create the site geologic profile at WCGS was the Updated Safety Analysis Report (USAR) material for the site. The Safe Shutdown Earthquake (SSE) Control Point was assumed to be at the top of the highest soft rock layer, and the profile was modeled up to this layer, without including overlying topsoil, sand, silt, and clay. For dynamic properties of soft rock layers, modulus and damping curves were represented with 2 models. The first model used rock curves taken from Reference 4, the second model assumed linear behavior.
These dynamic property models were weighted equally.
The 3 base-case shear-wave velocity profiles used to model amplification at WCGS are shown in Figure 1. Profiles 1, 2, and 3 are weighted 0.4, 0.3, and 0.3, respectively. Thicknesses, depths, and shear-wave velocities (Vs) corresponding to each profile are shown in Table 1.
Shear-Wave Velocities (Vs) for WCGS Vs (ft/sec) 0  1000  2000  3000 4000    5000    6000 7000  8000  9000  10000 500                                                        __      _
1000 1500                -                                                    - Profile 1 F. 2000                            -Profile                                            2
                                                                    -                  - Profile 3 2500 3500                                                _
4000                                      -
4500 Figure 1 Shear Wave Velocities (Vs) Profile for WCGS
 
Attachment to ET 13-0029 Page 2 of 4 Table 1 Layer Thicknesses, Depths, and Velocities (Vs) for 3 Profiles Profile I  ____Profile                  2          _____Profile 3 Thickness    depth        Vs    Thickness  depth  Vs      Thickness depth      Vs 0      1450                    0    924    ____            0  2276 10.0      10.0      1450        10.0      10.0  924          10.0      10.0 2276 10.0      20.0      1450        10.0      20.0  924          10.0    20.0  2276 10.0      30.0      4512        10.0      30.0  2888          10.0      30.0 7084 10.0      40.0      4517        10.0      40.0  2891          10.0    40.0  7092 10.0      50.0      4522        10.0      50.0  2894          10.0      50.0 7100 10.0      60.0      4527        10.0      60.0  2897          10.0    60.0  7108 10.0      70.0      4532        10.0      70.0  2901          10.0    70.0  7116 10.0      80.1      4537        10.0      80.1  2904          10.0    80.1  7123 10.0      90.1      4542        10.0      90.1  2907          10.0    90.1  7131 10.0      100.1      4547        10.0    100.1  2910          10.0    100.1 7139 10.0      110.1      4552        10.0    110.1  2913          10.0    110.1 7147 10.0      120.1      4557        10.0    120.1  2917          10.0    120.1 7155 10.0      130.1      4562        10.0    130.1  2920          10.0    130.1 7163 10.0      140.1      4567        10.0    140.1  2923          10.0    140.1 7171 10.0      150.1      4572        10.0    150.1  2926          10.0    150.1 7178 10.0      160.1      4577        10.0    160.1  2929          10.0    160.1 7186 10.0      170.1      4582        10.0    170.1  2933          10.0    170.1 7194 10.0      180.1      4587        10.0    180.1  2936          10.0    180.1 7202 10.0      190.1      4592        10.0    190.1  2939          10.0    190.1 7210 10.0      200.1      4597        10.0    200.1  2942          10.0    200.1 7218 10.0      210.1      4602        10.0    210.1  2945          10.0    210.1 7226 10.0      220.1      4607        10.0    220.1  2949          10.0    220.1 7233 10.0      230.2      4612        10.0    230.2  2952          10.0    230.2 7241 10.0      240.2      4617        10.0    240.2  2955          10.0    240.2 7249 10.0      250.2      4622        10.0    250.2  2958          10.0    250.2 7257 10.0      260.2      4627        10.0    260.2  2961          10.0    260.2 7265 10.0      270.2      4632        10.0    270.2  2965          10.0    270.2 7273 10.0      280.2      4637        10.0    280.2  2968          10.0    280.2 7280 10.0      290.2      4642        10.0    290.2  2971          10.0    290.2 7288 10.0      300.2      4647        10.0    300.2  2974          10.0    300.2 7296 10.0      310.2      4652        10.0    310.2  2977          10.0    310.2 7304 10.0      320.2      4657        10.0    320.2  2981          10.0    320.2 7312 10.0      330.2      4662        10.0    330.2  2984          10.0    330.2 7320 10.0      340.2      4667        10.0    340.2  2987          10.0    340.2 7328 10.0      350.2      4672        10.0    350.2  2990          10.0    350.2 7335 10.0      360.2      4677        10.0    360.2  2993          10.0    360.2 7343
 
Attachment to ET 13-0029 Page 3 of 4 Profile I ____Profile                2                Profile 3 Thickness    depth      Vs    Thickness depth  Vs  Thickness    depth  Vs 10t0      370.2    4682s      10.0    370.2 2997s    10.0      370. 7351 10.0      380.2    4687        10.0    380.2 3000      10.0    380.2  7359 10.0      390.3    4692        10.0    390.3 3003      10.0    390.3  7367 10.0      400.3    4697        10.0    400.3 3006      10.0    400.3  7375 10.0      410.3    4702        10.0  410.3  3009    10.0      410.3  7383 10.0      420.3    4707        10.0    420.3 3013      10.0    420.3  7390 10.0      430.3    4712        10.0  430.3  3016      10.0    430.3  7398 10.0      440.3    4717        10.0    440.3 3019      10.0    440.3  7406 10.0      450.3    4722        10.0    450.3 3022      10.0    450.3  7414 10.0      460.3    4727        10.0    460.3 3025      10.0    460.3  7422 10.0      470.3    4732        10.0    470.3 3029      10.0    470.3  7430 10.0      480.3    4737        10.0    480.3 3032      10.0    480.3  7438 10.0      490.3    4742        10.0    490.3 3035      10.0    490.3  7445 9.6      500.0    4779        9.6    500.0 3058      9.6      500.0  7502 100.1      600.0    4835      100.1    600.0 3095    100.1    600.0  7592 100.1      700.1    4893      100.1    700.1 3131    100.1    700.1  7681 100.1      800.2    4950      100.1    800.2 3168    100.1    800.2  7771 100.1      900.2    5007      100.1    900.2 3204    100.1    900.2  7861 100.1    1000.3    5064      100.1  1000.3 3241    100.1    1000.3  7951 100.1    1100.4    5121      100.1  1100.4 3278    100.1    1100.4  8040 100.1    1200.4    5179      100.1  1200.4 3314    100.1    1200.4  8130 100.1    1300.5    5236      100.1  1300.5 3351    100.1    1300.5  8220 100.1    1400.6    5293      100.1  1400.6 3387    100.1    1400.6  8310 100.1    1500.6    5350      100.1  1500.6 3424    100.1    1500.6  8400 100.1    1600.7    5407      100.1  1600.7 3461    100.1    1600.7  8489 100.1    1700.8    5464      100.1  1700.8 3497    100.1    1700.8  8579 100.1    1800.8    5522      100.1  1800.8 3534    100.1    1800.8  8669 100.1    1900.9    5579      100.1  1900.9 3570    100.1    1900.9  8759 100.1    2000.9    5636      100.1  2000.9 3607    100.1    2000.9  8848 100.1    2101.0    5693      100.1  2101.0 3644    100.1    2101.0  8938 100.1    2201.1    5750      100.1  2201.1 3680    100.1    2201.1  9028 100.1    2301.1    5807      100.1  2301.1 3717    100.1    2301.1  9118 100.1    2401.2    5865      100.1  2401.2 3753    100.1    2401.2  9208 100.1    2501.3    5922      100.1  2501.3 3790    100.1    2501.3  9285 100.1    2601.3    5979      100.1  2601.3 3827    100.1    2601.3  9285 100.1    2701.4    6036      100.1  2701.4 3863    100.1    2701.4  9285 100.1    2801.5    6093      100.1  2801.5 3900    100.1    2801.5  9285 100.1    2901.5    6151        100.1  2901.5 3936    100.1    2901.5  9285 100.1    3001.6    6208      100.1  3001.6 3973    100.1    3001.6  9285 100.1    3101.7    6265      100.1  3101.7 4010    100.1    3101.7  9285
 
Attachment to ET 13-0029 Page 4 of 4 Profile I                        Profile 2                    Profile 3 Thickness      depth      Vs    Thickness      depth      Vs  Thickness    depth      Vs 1001(ft)            (f3s)        (ft)        (ft)    (f30. 10.1 (ft)    3(f0s) 100.1      3201.7    6322        100.1    3201.7    4046    100.1    3201.7    9285 100.1      3301.8    6379        100.1    3301.8    4083    100.1    3301.8    9285 100.1      3401.9    6436        100.1    3401.9    4119    100.1    3401.9    9285 100.1      3501.9    6494        100.1    3501.9    4156    100.1    3501.9    9285 100.1      3602.0    6551        100.1    3602.0    4193    100.1    3602.0    9285 100.1      3702.1    6608        100.1    3702.1    4229    100.1    3702.1    9285 100.1      3802.1    6665        100.1    3802.1    4266    100.1    3802.1    9285 100.1      3902.2    6719        100.1    3902.2    4300    100.1    3902.2    9285 100.1      4002.3    6791        100.1    4002.3    4346    100.1    4002.3    9285 3280.8      7283.1    9285      3280.8    7283.1    9285    3280.8    7283.1    9285
 
==References:==
: 1. Letter from A. R. Pietrangelo, NEI, to D. L. Skeen, USNRC, "Proposed Path Forward for NTTF Recommendation 2.1: Seismic Reevaluations" April 9, 2013. ADAMS Accession No. ML13107B386.
: 2. Electric Power Research Institute Report 1025287, "Seismic Evaluation Guidance:
Screening, Prioritization and Implementation Details (SPID) for the Resolution of Fukushima Near-Term Task Force Recommendation 2.1: Seismic." ADAMS Accession No. ML12333A170.
: 3. Letter from E. J. Leeds, USNRC, to J. E. Pollock, NEI, "EPRI Final Draft Report XXXXXX, "Seismic Evaluation Guidance: Augmented Approach for the Resolution of Near-Term Task Force Recommendation 2.1: Seismic," as an Acceptable Alternative to the March 12, 2012, Information Request for Seismic Reevaluations," May 7, 2013.
ADAMS Accession No. ML13106A331.
: 4. Electric Power Research Institute Report, TR-102293, Vol. 1 - 5, "Guidelines for DeterminingDesign Basis Ground Motions," 1993.}}

Latest revision as of 13:37, 1 March 2020

Redirect to:

Retrieved from "https://kanterella.com/w/index.php?title=ML13260A253&oldid=2520671"