IR 05000498/1978008
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U. S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION IV
Report No. 50-498/78-08; 50-499/78-08
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Docket No. 50-498; 50-499 Category A2 Licensee: Houston Lighting and Power Company Post Office Box 1700
Houston, Texas 77001 Facility Name: South Texas Project, Units 1 & 2 Inspection at: South Texas Project, Matagorda County, Texas Inspection conducted: May 16-19, 1978 Inspectors: M. M.C[L d S/2 6/W W. G. Hubacek, Reactor Inspector, Projects Section Date W --
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5/Z&f'18 W. A. Crossman, Chief, Projects Section Date 8 /2 4 /76 Approved:
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W. A. Crossman, Chief, Projects Section D&te Inscection Summary:
Inscection on May 16-19, 1978 (Recort No. 50-498/78-08; 50-499/78-08)
Areas Inscectea: Unannounced inspection of _ construction activities including review of the status of an item reported in accordance with 50.55(e), review
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of the status of quality procedure development, and review of records related i
to concrete placement in Unit I containment. The inspection involved twenty-four inspector-hours by two NRC inspectors.
Resul ts: No items of noncompliance or deviations were identified.
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DETAILS 1.
Persons Contacted Principal Licensee Employees
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- W. N. Phillips, Project QA Manager
- S. A. Viaclovsky, QA Supervisor
- F. D. Asbeck, Construction Supervisor
- T. K. Logan, Lead Engineer
- M. H. Smith, Electrical QA Specialist
- J. R. Monroe, Construction Project Manager, Brown & Root (B&R)
- C. W. Vincent, Project QA Manager, B&R
- A. L. Smith, Construction Quality Engineer, B&R J. R. Rosso, QA Enginear, B&R The IE inspectors also contacted other licensee and contractor per-sonnel including members of the QA/QC staffs.
- denotes those attending the exit interview.
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2.
Site Tour The IE inspectors walked through various areas of the site to observe constructier, activities in progress and to inspect housekeeping and equipment storage.
No items of noncompliance or deviations were identified.
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3.
Voids in Slab in the Unit 1 Fuel Handling Building The IE inspectors reviewed the status of the voids in the slab at EL +21'11" in the Unit 1 Fuel Handling Building whi.ch had been previ-ously reported in accordance with the requirements of 10 CFR 50.55(e).
The major activity in progress was evaluation of the shielding :apa-bility of the void areas by Gamma Industries who have been contracted to perform radiation transmission measurements of the affected areas.
Measurements were being made by means of a 200 curie cobalt 60 source placed on the top surface of the slab with a crystal datector placed
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directly below on the bottom surface. A grid system for the top and bottom surfaces has been developed to insure adequate coverage of the-2-
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void areas. Approximately 275 points on a 2'x 2' grid will be checked.
Measurements are to be compared with those obtained using a step wedge fabricated from the same type of concrete mix used for the slab but without embedded reinforcing steel.
Sufficient data were not yet available to substantiate a conclusion
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regarding the shielding capability of the slab.
No items of noncompliance or deviations were identified.
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4.
Brown & Root Procedure Revisions The IE inspector was 11 formed, by a licensee representative, that the issuance of Quality Construction Procedures (QCPs) originally scheduled for April 30, 1978, has been delayed until May 31, 1978.
Implementation of the procedures is scheduled to occur on June 19, 1978. A joint training program related to use of the procedures is p}anned for QC and construction personnel.
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Review of Quality Records Related to Structural Concrete
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The IE inspectors reviewed quality records related to placements of concrete on April 18-19,1978, at EL +19.0 inside the Unit No.1 containment. Records reviewed included the following:
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Curing Inspection Card Concrete Inspection Book Cadwelder Test Records (for 16 Cadwelds)
Tests of Cement (for grind 164)
Daily Aggregate Test Reports Daily Batch Plant Operation Batch Record Sunnary Batch Plant Equipment Inspection Concrete Test Load Ticket Moisture Content of Aggregates Moisture Adjustment and Batch Weights Batch Plant Surveillance Report Laboratory Surveillance Report Field Testing Summary Concrete Compressive Strength Reports The IE inspectors also reviewed seven surveillance checklists related to concrete activities performed by the licensee and qualification records of seven QC inspectors involved with this placement.
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No items of noncompliance or deviations were identified.
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6.
Exit Interview The IE inspectors met'with licensee representatives (denoted in para-graph 1) at the conclusion of the inspection on May 19, 1978. The inspectors sunnarized the purpose and scope of the inspection and the findings.
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