ML20054L084

Interim Part 21 Rept Concerning Deficiencies Left to Util & Bechtel by Brown & Root When Ae Changed.Three of Four Listed Deficiencies Already Resolved.Hvac Design Deficiency Undergoing Design Review

ML20054L084
Person / Time
Site:	South Texas
Issue date:	06/30/1982
From:	Oprea G HOUSTON LIGHTING & POWER CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
REF-PT21-82-672-000 10CFR-50.55E, PT21-82-672, PT21-82-672-000, ST-HL-AE-842, NUDOCS 8207070138
Download: ML20054L084 (3)

Text

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The Light company u_..,%,m,-_ im. moo u_..... i_ . .ooi -u June 30, 1982 ST-HL- AE- 842 File Number: G2.01/G2.02 Mr. John T. Collins Regional Administrator, Region IV cs - .3 _n) -

Nuclear Regulatory Commission '['f,dNNiIh\3Il { I i hjf'R 611 Ryan P1aza Dr. , Suite 1000 '! '

Arlington, Texas 76012 gg g g f'

Dear Mr. Collins:

k b South Texas Project Units 1 & 2 Docket Nos STN 50-498, STN 50-499 Status of Brown & Root 10CFR21 Items By letter dated June 11, 1982, Brown & Root, Inc. (B&R) notified the Nuclear Regulatory Commission (NRC) that the resolution of four (4) items which had previously been reported by B&R pursuant to 10CFR21, is now the responsibility of Houston Lighting & Power Company (HL&P) and Bechtel Power Corporation (BPC). The four (4) items identified in the B&R letters are as follows:

(1) Diesel Generator Fuel Oil Storage Tank Room Fan Motor Qualification (2) Essential Cooling Water Gantry Crane Tornado Design (3) Emergency Sump Recirculation Piping Design (4) Heating, Ventilation and Air Conditioning (HVAC) Design Please note that HL&P has previously reported all of the above items to the NRC pursuant to 10CFR50.55(e).

In regard to item (1) above, HL&P submitted a final report to your office on September 3, 1980. To correct the deficient condition, a conmitment was made to replace the fan motors with motors qualified to Class 1E requirements.

To date, replacement motors have not yet been procurred. Bechtel Power Corporation (BPC) is currently evaluating the design of the Diesel Generator Fuel Oil Storage Tank Room and will provide a recomendation regarding the replacement of the fan motors subsequent to the completion of transition Phase B activities.

In regard to item (2) above, HL&P submitted a Final Report to your office on October 9,1979. In our final report, HL&P stated that the crane rails would be extended a sufficient distance from the structure such that in the unlikely event of a tornado wind induced failure of the crane, none of the N

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Ilomion 1.ighting & Power Comiuny June 30, 1982 ST-HL-AE-842 File Number: G2.01/G2.02 Page 2 crane structure would impact the Essential Cooling Water Intake Structure (ECWIS). In addition, operational limitations will preclude the crane from being operated during adverse weather conditions and will provide for the crane to be stored in a locked position at the end of the extended rails. BPC is currently evaluating the B&R design modifications to the ECW Gantry Crane and will provide HL&P with a recommended dispostion during Phase B activities.

In regard to item (3) above, HL&P submitted a final report to your office on May 30, 1980 and a supplemental infonnation letter on August 22, 1980. Our letter of May 30, 1980 indicated that this item would be corrected by anchoring the process pipe to the guard pipe outside the containment building and adding an expansion joint to the process pipe inside the emergency sumps.

In addition, programmatic modifications were effected by B&R to correct a weakness in the B&R design verification activity to prevent recurrence of this i tem. As part of the transition activities, BPC is reevaluating the design modifications proposed by B&R and will provide HL&P with a recommendation regarding the design modifications. Regarding the previous weakness in the B&R design verification process, BPC has procedures in place to preclude a similar event from recurring.

Ldstly, regarding item (4) above, HL&P submitted a fourth interim report to your office on May 26, 1982. As identified in the subject report, a conceptual design was previously developed by B&R and forwarded to HL&P for consideration. In addition, in order to expedite the resolution of this item, two (2) consultants were engaged by B&R to perform system review, evaluation and design recommendation activities. The reports by the consultants have been received by B&R and transmitted to BPC as part of the transition activi ties . BPC is presently in the process of performing a detailed review of the South Texas Project (STP) HVAC design. The next interim report concerning this item will be submitted to your office by October 18, 1982.

If the BPC recommended corrective action for items (1) through (3) is different than that previously identified by B&R, HL&P will notify your office of these changes.

If you should have any questions concerning this letter, please contact Mr. Michael E. Powell at (713) 877-3281.

Very truly yours, Yk f G. W. Oprea, Jr Executive Vice President MEP/kr

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• Ilomton 1.ighting & Power Company cc: G. W. Oprea, Jr. June 30, 1982 J. H. Goldberg ST-HL-AE-842 J. G. Dewease File Number G2.01/2.02 J. D. Parsons Page 3 D. G. Barker C. G. Robertson R. A. Frazar J. W. Williams J. W. Briskin J. E. Geiger R. L. Ul rey 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. James C. Lamb, III City of Austin 313 Woodhaven Road P. O. 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 Harmon & 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 1684 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

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