ML20005A465

Fourth Interim Deficiency Rept Re Min/Max Soil Density Tests on Essential Cooling Water Pipeline Backfill Matl, Initially Reported on 800620.Backfill Bedding Was Compacted & Accepted on 810521.Next Rept Will Be Submitted by 811127

ML20005A465
Person / Time
Site:	South Texas
Issue date:	06/24/1981
From:	Oprea G HOUSTON LIGHTING & POWER CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, ST-HL-AE-688, V-0530, V-530, NUDOCS 8106300365
Download: ML20005A465 (3)

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I The Light Company n .,,, ueiniim- m a.,x m n ,-<,,i.Tms mo m m-mu June 24,1981 - I ST-HL-AE-688 -

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N; Mr. Karl Seyf rit y , $#(:, Q Oirector, Region IV J ,; v. Q/

Nuclear Regulatory Commission e + ,/

611 Ryan Plaza Drive, Suite 1000 N-

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Arlfngton, Texas 76012 'M

Dear Mr. Seyfrit:

South Texas Project Units 1 & 2 Docket Nos. STN 50-498, STN 50-499 Fourth Interim Report Concerning Minimum / Maximum S7il Density Tests on ECW Backfill 3n June 20, 1980,* pursuant to 10CFR50.55(e), Houston Lighting & Power Company notified your office of an item concerning soil density tests on the Essential Cooling' Water (ECW) pipeline backfill material. The atcached report will provide a status of the prograss conDieted to date, The next interim report concerning this item will be provided to your office by November 27, 1981.

If you have any questions concerning this item, please contact Mr. Michael E. Powell at (713) 676-8592.

Very truly ynurs, J f

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Exectrti ve ce President RRH/amj I

Attachment i

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Houston cc: J.Lightinkoldberg&

H.- Power Compan June 24, 1981 D. G.. Barker ST-HL-AE-688 C. G. Robertson SFN: V-0530 Howard Pyle Page 2 R. L. Waldrop H. R. Dean

0. R. Beeth J. D. Parsons J. W. Williams J. W. Briskin R. A. Frazar STP RMS H. S. Phillips (NRC)

J. O. Read (Read-Poland,Inc.)

M. D. Schwarz (Baker & Botts)

R. Gordon Gooch (Baker & Botts)

J. R. Newman (Lowenstein, Newman, Reis, 3 Axelrad)

Director, Office of Inspection & Enforcement Nuclear Regulatory Commission Washington, D. C. 20555 M. L. Borchelt Charles Bechhoefer, Esquire President Chairman, Atomic Safety & Licensing Board Central Power & Light Company U. S. Nuclear Regulatory Commission P. O. Box 2121 Washington, D. C. 20555 Corpus Christi, Texas 78403 R. L. Range Dr. James C. Lamb, III ,

Central Power & Light 313 Woodhaven Road P. O. Box 2121 Chacel Hill, North Carolina 27514 Corpus Christi, Texas 78403 R. L. Hancock Mr. Ernest E. Hill Director of Electrical Utilities Lawrence Livermore Laboratory City of Austin University of California P. O. Box 1088 P. O. Box 308, L-123 Austin, Texas 78767 Livermore, California 94550 T. H. Muehlenbeck William S. Jordan, III City of Austin Harmon & Weiss P. O. Box 1088 1725 I Street, N. W.

Austin, Texas 78767 Suite 506 Washington, D. C. 20006 J. B. Poston Lanny Sinkin Assistant General Manager of Goerations Citizens Concerned About Nuclear Power City Public Service Board 5106 Casa Oro P. O. Box 1771 San Antonio, Texas 78233 San Antonio, Texas 78296 A. vonRosenberg Citizens for Equitable Utilities, Inc.

City Public Service Board c/o Ms. Peqqy Buchorn l P. O. Box 1771 Route 1, Box 1684 San Antonio, Texas 78296 Brazoria, Texas 77422 Brian E. Berwick, Esquire Jay Gutierrez, Esquire Assistant Attorney for the State of Texas Hearing Attorney P. O. Box 12548 Office of the Executive Legal Director Capitol Station U. S. Nuclear Regulatory Commission Austin, Texas 78711 Washington, D. C. 20555 6-9-81

Fourth Interim Report Concerning Minimum / Maximum Soil Density Tests on ECW Backfill The following information provides a status of the progress completed to date regarding the ECW pipeline backfill.

1. The construction procedure for conducting the ECW pipeline excavation and backfill has been develoDed, and the personnel training required by this procedure was completed on March 5, 1981.

2. The ECW System pipeline backfill bedding in the areas adjacent to ECW System Intake and Discharge Structures was requalified anu accepted by April 8,1981. Backfill within the cells of these structures containing the ECW piping has been excavated to allow the pipe weld repair program to proceed. The bedding was requalified by April 14, 1981.

3. Backfill bedding for the STP Unit II, 10-inch ECW System pipeline was initally requalified and accepted by May 18, 1981.

However, additional bedding Dreparation is required in this area due to the surface disturbance and contamination of the backfill bedding due to heavy raits. The 10-inch pipes have been removed to allow the rework af the bedding.

4 The 3-inch ECW System pipeline east of the STP Unit Il Mechanical - El6ctrical Auxilliary Building was removed fron .

the excavaticn, and the previous backfill bedding excavated and replaced with TXI Category I backfill. The backfill bedding was compacted and accepted by May 21, 1981, and the Dipes are now being replaced.

Additionally, information regarding this item has been transmitted to your office in response to Item 2, Appendix A, of the Order to Show Cause issued on April 30, 1980.

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