ML20055B709
| ML20055B709 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 07/19/1982 |
| From: | Oprea G HOUSTON LIGHTING & POWER CO. |
| To: | Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ST-HL-AE-852, NUDOCS 8207230100 | |
| Download: ML20055B709 (2) | |
Text
The Light NE Mf flouston Lighting & Power P.O. Box 1700 flouston, Texas 77001 (713)228-9211 JuTi~T9719&
ST-HL-AE-852 File Number: G12.121 Mr. John T. Collins Regional Administrator, Region IV
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'5 Nuclear Regulatory Commission
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611 Ryan P1aza Dr.. Suite 1000 lv !
Arlington, Texas 76012 1
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Dear Mr. Collins:
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Units 1 & 2 Docket Nos. STN 50-498, STN 50-499 First Interim Report Concerning the Diesel Generator Building Design On June 23, 1982, pursuant to 10CFR50.55(e), Houston Lighting & Power Company (HL&P) notified your office of an item concerning the design of the Diesel Generator Building (DGB) on Unit #1 of the South Texas Project (STP).
The item concerns discrepancies between calculations and drawings for the DGB and was identified as a result of the review of Bechtel Power Corporation (BPC) Work Package EC-138. The findings in this work package review revealed that in isolated areas of the DGB, the rebar shown on the engineering drawings is less than that required by the calculations, anchor bolts were found to be smaller on the engineering drawing than what the calculations called for, and in an isolated case, an inconsistency was found in the specification of a structural steel connection.
Ti.e resolution by BPC of these discrepancies is planned through a details i investigation of reinforcement detail drawings, responses by Brown &
Root, Inc. (B&R) to the discrepancies, and by the preparation of parallel calculations, where required, in order to establish the adequacy of the "as-built" condition.
To date, all related reinforcement detail drawings have been obtained and are being reviewed.
Preliminary background infonnation relative to the discrepancies has been received from B&R and is being reviewed.
A preliminary assessment of the existing condition is that adequate conservatism exists in the structural design to account for the identified discrepancies, and that no safety hazard will exist upon final evaluation. Our next report concerning this item will be submitted to your office by September 17, 1982.
If you should have any questions concerning this matter, please contact Mr. M. E. Powell at (713) 877-3281.
Very tr ly yours,
,/
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Exe utiveAT ce President MEP/kr 8207230100 820719 PDR ADOCK 05000498 S
flouston Lighting & Power Company cc:
G. W. Oprea, Jr.
July 19, 1982 J. H. Goldberg ST-HL-AE-852 J. G. Dewease File Number: G12.121 J. D. Parsons Page 2 D. G. Barker C. G. Robertson R. A. Frazar J. W. Williams J. W. Briskin J. E. Geiger R. L. Ulrey S. M. Dew J. T. Collins NRC)
D. E. Sells NRC)
W. M. Hill, Jr.
NRC)
M. D. Schwarz (Baker &Botts)
R. Gordon Gooch (Baker & Botts)
J. R. Newman (Lowenstein, Newman, Reis, & Axelrad)
STP RMS Director, Office of Inspection & Enforcement Nuclear Regulatory Comission Washington, D. C. 20555 G. W. Muench/R. L. Range Charles Bechhoefer, Esquire Central Power & Light Company Chairman, Atomic Safety & Licensing Board P. O. Box 2121 U. S. Nuclear Regulatory Commission Corpus Christi, Texas 78403 Washington, D. C.
20555 H. L. Peterson/G. Pokorny Dr. James C. Lamb, III City of Austin 313 Woodhaven Road P. O. Box 1088 Chapel Hill, North Carolina 27514 Austin, Texas 78767 l
J. B. Poston/A. vonRosenberg Mr. Ernest E. Hill City Public Service Board Lawrence Livemore Laboratory P. O. Box 1771 University of California San Antonio, Texas 78296 P. O. Box 808, L-46 Livermore, California 94550 Brian E. Berwick, Esquire William S. Jordan, III Assistant Attorney General Hamon & Weiss for the State of Texas 1725 I Street, N. W.
P. O. Box 12548 Suite 5%
Capitol Station Washington, D. C.
Lanny Sinkin Citizens for Equitable Utilities, Inc.
l Citizens Concerned About Nuclear Power c/o Ms. Peggy Buchorn 5106 Casa Oro Route 1, Box 1684 San Antonio, Texas 78233 Brazoria, Texas 77422 Jay Gutierrez, Esquire earing Attorney u
j Office of the Executive Legal Director U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Revision Date 04-19-82
4 The Light NE E
Houston Lighting & Power P.O. Box 1700 Houston, Texas 77001 (713)228-9211
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July 19, 1982 ST-HL-AE-852 File Number: G12.121 Mr. John T. Collins Regional Administrator, Region IV
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Nuclear Regulatory Commission I
611 Ryan Plaza Dr., Suite 1000 Arlington, Texas 76012 i
J1. 2 0 IT2
' l
Dear Mr. Collins:
South Texas Project Units 1 & 2 Dock 2t Nos. STN 50-498, STN 50-499 First Interim Report Concerning the Diesel Generator Building Design On June 23, 1982, pursuant to 10CFR50.55(e), Houston Lighting & Power Company (HL&P) notified your office of an item concerning the design of the Diesel Generator Building (DGB) on Unit #1 of the South Texas Project (STP).
The item concerns discrepancies between calculations and drawings for the DGB and was identified as a result of the review of Bechtel Power Corporation (BPC) Work Package EC-138. The findings in this work package review revealed that in isolated areas of the DGB, the rebar shown on the engineering drawings is less than that requimd by the calculations, anchor bolts were found to be smaller on the engineering drawing than what the calculations called for, and in an isolated case, an inconsistency was found in the specification of a structural steel connection.
The resolution by BPC of these discrepancies is planned through a detailed investigation of reinforcement detail drawings, responses by Brown &
Root, Inc. (B&R) to the discrepancies, and by the preparation of parallel calculations, where required, in order to establish the adequacy of the "as-built" condition.
To date, all related reinforcement detail drawings have been obtained and l
are being reviewed.
Preliminary background infonnation relative to the discrepancies has been received from B&R and is being reviewed.
A preliminary assessment of the existing condit.lon is that adequate conservatism exists in the structural design to account for the identified discrepancies, and that no safety hazard will exist upon final evaluation. Our next report concerning this item will be submitted to your office by September 17, 1982.
If you should have any questions concerning this matter, please contact Mr. M. E. Powell at (713) 877-3281.
Very tru y yours,
/
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~
7 n.
w-gg Execu ve Vic President MEP/kr
.,,a flouston Lighting & Power Company cc:
G. W. Oprea, Jr.
July 19, 1982 J. H. Goldberg ST-HL-AE-852 J. G. Dewease File Number: G12.121 J. D. Parsons Page 2 D. G. Barker C. G. Robertson R. A. Frazar J. W. Williams J. W. Briskin J. E. Geiger R. L. Ulrey S. M. Dew J. T. Collins NRC)
D. E. Sells NRC)
W. M. Hill,Jr.
NRC)
M. D. Schwarz (Baker &Botts)
R. Gordon Gooch (Baker & Botts)
J. R. Newman (Lowenstein, Newman, Reis, & Axelrad)
STP RMS Director, Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D. C. 20555 G. W. Muench/R. L. Range Charles Bechhoefer, Esquire Central Power & Light Company Chairman, Atomic Safety & Licensing Board P. O. Box 2121 U. S. Nuclear Regulatory Commission Corpus Christi, Texas 78403 Washington, D. C.
20555 H. L. Peterson/G. Pokorny Dr. Janes C. Lamb, III City of Austin 313 Woodhaven Road P. 0. Box 1088 Chapel Hill, North Carolina 27514 Austin, Texas 78767 J. B. Poston/A. vonRosenberg Mr. Ernest E. Hill City Public Service Board Lawrence Livermore Laboratory P. O. Box 1771 University of California San Antonio, Texas 78296 P. O. Box 808, L-46 Livermore, California 94550 Brian E. Berwick, Esquire William S. Jordan, III Assistant Attorney General Harnon & Weiss for the State of Texas 1725 I Street, N. W.
P. O. Box 12548 Suite 506 Capitol Station Washington, D. C.
20006 Austin, Texas 78711 Lanny Sinkin Citizens for Equitable Utilities, Inc.
Citizens Concerned About Nuclear Power c/o Ms. Peggy Buchorn 5106 Casa Oro Route 1, Box 16B4 San Antonio, Texas 78233 Brazoria, Texas 77422 Jay Gutierrez, Esquire Hearing Attorney Office of the Executive Legal Director U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Revision Date 04-19-82
-.