ML19254D036
| ML19254D036 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 08/15/1979 |
| From: | Fay C WISCONSIN ELECTRIC POWER CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7910220035 | |
| Download: ML19254D036 (8) | |
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9 231 W. MICHIGAN, P.O. BOX 2046. MILWAUKEE. WI 53201 August 15, 1979
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Mr. iiarold R. Denton, Director ar fi'rtiz Office of Huclear Reactor Regulation 7
U. S.11UCLEAR RECULATORY CC:;11SSIO :
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Attention: !!r. Olan D. Parr, Chief g M; Operating Reactors Granch No. 3 cG.g
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COCKET f!0. ST': 50-501 ADDI' flu..r.L I.ao J w.. - PS AR htw t e n,
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Enclosed herewith are Applicants' responses to your requests for additional information r ;arding your review of the Preliminary Safety Analysis Report for the !!aven Nuclear Plant.
The rec.uest.; for this informatica were transmitted by your letter dated July 11, 1975. We are providing 25 copics of these responses. The full size copies of geophysical infomnion requested by Item 361.14 and 361.16 are being provided separately.
If you have any questior.s regarding this infomation, please contact us.
Very trUly yours,,
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C. W. Fay, 'Di rcctor i;uclear Power Ocpartment Enclosure Copy to Service List Blind Copies to itessrs. C. S. Mctieer P. D. Ziemer Sol Burstein R. H. Gorske/A. W. Finke D. K. Porter Gerald Charnoff D. E. Beckwith ii. A. Ricci 7 910220 C) 3E F. R. Boucher/S. T. Su W. C. Craig and J. R. Underkofler j}CfJ l28 j
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Before the Atomic Safety and Licensino Boar d
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In the 11atter of UISC0;tSIll ELECTRIC P0'.lER Docket No. STN 50-502 COMPAilY, ET AL.
Haven lluclear Plant SERVICE LIST Chairman Robert H. Gorske, Esq.
Atomic Safety and Licensing Board llisconsin Electric Pcwer Company U. S. I;uclear Regulatory Commission 231 West Michigan Street
!!ashington, J. C.
20555 Milwaukee, Wisccasin 53201 Mr. Glenn 0. Bright Mr. Sol Burstein Atomic Safety and Licensing Board Executive Vice P: esident U. S. liuclear Regulatory Commission Wisconsin Electri c Powe r Company tlashington, D. C.
20555 231 West liichigan Street Miluaukee, Wisconsin 5.3201 Dr. E. Leonard Cheatum Route f3 Mr. Uilliam Charl es Hanley Box 350-A President Watkinsville, Georgia 30677 Safe Haven Ltd.
P. O. Box 40 Steven C. Goldberg, Esq.
Kohler, Wisconsi:n.
530?4 Office of the Executive Legal Director David E. Beckwith, Esq.
U. S. !!uclear Regulatory Commission Foley & Lardner Washington, D. C.
20555 First Wisconsin Center 777 E. Uisconsir. Avenue Docketing and Service Section Milwaukee, Wisconsin 53202 Office of the Secretary U. S. fluclear Regulatory Commission Mr. Richard U. Kenneger Washington, D. C.
20555 Bureau of Legal Services Department of Natural Resources Thomas A. Lockycar, Esq.
Box 7921 Assistant Chief Counsel Madison, Wisconcin 53707 Public Service Commission of Wisconsin Hill Farms State Office Building Madison, Wisconsin 53702 Gerald Charnoff, Esq.
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Shau, Pittman, Potts & Tro< bridge Q
19 1023 " Street, f!.U.
9 llashington, D. C.
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HAVEf1 fiUCLEAR PLAriT cm i APPLICAt!TS' RESP 0t4SE TO U. S. I?UCLEAR REGULATORY C0 'IISS: Oil REQUEST FOR ADDITIO!?AL If1FOR :ATI0t?
Dated July 11, 1979 1190 130
iiRC OUESTIOlt 361.13 Accendix 2P (fiRC Letter dated July 11, 1979)
On page 23 of PSAR Appendix 2P the following statements are made:
"These terraces appear to be associated with channels on the bedrock surface.
Good evidence of the association of the terraces with a bedrock channel is observed on Lines 26 and 28 (Figure 100). On these lines ~ a zone of channeling is observed on the bedrock as well as in glacial tills in the immediate vicinity of the terraces. These terraces appear as,,hannel walls on Lines 26 and 28 where the bedrock erosion is more pronounced relative to the erosion on Lines 24, 20 and 32.
The bedrock channel trends north-south and extends to Line 44 in the north.
In the south it appears to extend to Line 14 with the exception that no channeling was observed on intermediate Lines 22 anc 20 (Figure 6). The absence of channeling on Lines 22 and 20 suggests that the bedrock channel may have been eroded away in this area by glacial scouring."
PSAR, Apoendix 2P, Figure 6 (Bedrock Features Map) does not reflect the bedrock ch:nnel as described above.
Specifically, the figure does not reflect the channels extend northward to Line 44 or the southern extension to Line 14.
Provice tne necessary data and discussion to clarify this apparent discrepancy.
RES PO.15E The description of the bedrock channels on page 23 and 24 of Apoendix 2P is based on a preliminary draft of the bedrock contours and the bedrock features maps. The final figures are provided in Appendix 2P, Figures 5 and 6.
In order to correct this discrepancy the following should be deleted on page 23:
The bedrock channel trends north-south and extends to Line 44 in the north.
In the south it appears to extend to Line 14 with the exception that no channeling was cbserved on intermediate Lines 22 and 20 (Figure 6).
The absence of cnsnneling on Lines 22 and 20 suggests that the bedrock channel may have been erodec away in this area by giacial scouring.
A tributary to tnis bedrock cnannel was located in the northwestern part of tne survey area.
The following should be substituted for the deleted portion of page 23:
Several bedrock channels have been identified on the bedrock surface.
They generally trend easterly but swing northerly in the eastern most portion of the survey area (Figure 6).
fiRC OUESTIOl1 361.14 Accendices 2P and 20 (t:RC Letter dated July 11, 1979)
Provide full size copies of the following offshore Fairfield geophysical lines:
Area I - Lines 15, 17 Area II - Lines 58, 60, 25, 27 RESP 0i;SE Five full-size copies of the h mil and 1 mil data from geophysical lines 15 and 17, Area I, and lines 25, 27, 58 and 60, Area II, are being transmitted separately.
1190 132 NRC OUESTION 361.15 Accendix 2R (URC Letter dated July 11, 1979)
On page 8 of PSAR Appendix 2R, Weston Geophysical discusses t:fo mapped escarpment like features that they felt could be interpreted as faults.
The first feature occurs on Fairfield Lines 18, 26, and 28.
It is further discussed in the Fairfield Industries report included as PSAR Appendix 2P.
The second feature described by Weston as occurring on Fairfield geophysical lines 44, 15,17 and 21, is not discussed in the remainder of the PSAR.
Discuss in detail all data available concerning this feature, including fault parameters and relationsnip to the regional geology.
RESPONSE
Pages 3 and 4 of the Supplement to Engineering Gecphysical Report Lake Michigan Area I (Appendix 2P) discuss these escarpments.
A discussion of these escarp-ments is also provided in Appendix 2M, Page 2M-15.
\\\\40 \\h5 flRC OUESTIOri 361.16 Accendix 20 (flRC Letter dated July 11, 1979)
Pages 21 thru 24 of PSAR Appendix 20 discuss four ragnetic ancmalies, numbered 1, 2, 3 and 4.
The PSAR references Appendix 2Q, Figure 8 for the anomalies location in the Fairfield Study Area II.
The location and areal extent of anomalies 1, 2, 3 and 4 is unclear as shown on Figure 8, Acpa ix 2Q.
Please modify Figure 8 to clarify the location and areal extent of tt.ese anomalies.
RESP 0l1SE Figure 8, attached, has been reproduced to show the location and extent of the four magnetic anomalies discussed in Appendix 20.
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