IR 05000338/1986023

Insp Repts 50-338/86-23 & 50-339/86-23 on 860902-05.No Violation or Deviation Noted.Major Areas Inspected:Mods to Svc Water Intake Structure

ML20215C462
Person / Time
Site:	North Anna
Issue date:	09/26/1986
From:	Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20215C460	List: IR 05000338/1986023 ML20215C457
References
50-338-86-23, 50-339-86-23, NUDOCS 8610100293
Download: ML20215C462 (5)

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"i^ NUCLEAR REGULATORY COMMISSION

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. ATt.ANTA GEORGI A 30323

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Report Nos.: 50-338I86-23 and 50-339/86-23

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Licensee: ' Virginia Electric and Power _'Compa'ny Richmond, VA 23261 ,

Docket Nos.: 50-338 and 50-339 License Nos.: NPF-4 and NPF-7 Facility Name: North Anna 1 and 2 Inspection Conducted: September 2-5, 1986 Inspeetor #7/ N 9 - 24. ~ E4>

J. R. Harris Date Signed Approved by rp 7~ %-~ M T. Conlon, Section Chief Date Signed

. Engineering Branch Division of Reactor Safety SUMMARY Scope: This routine, unannounced inspection was conducted in the areas of modifications to the service water intake structur Results: No violations or deviations were identifie .

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8610100293gg@O338 PDR ADOCK PDR G

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REPORT DETAILS Persons Contacted Licensee Employees

• E. W. Harrell, Station Manager

• E. R. Smith, Assistant Station Manager

• R. F. Driscoll, Manager, Quality Assurance

• J. Lebesstien, Licensing Engineer

• G. Harkness, Licensing Coordinator

• S. Dzialo, Engineering & Construction Project Manager B. Hargrave, Supervisor, Quality Control D. Hart, Staff Engineer, QC R. Sprouse, Construction Engineer Other licensee employees contacted included construction craftsmen, engineers, and technician Other Organization

• D. Zitio, Stone & Webster, Civil Engineer NRC Resident Inspector

• J. L. Caldwell

• Attended exit interview Exit Interview

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The inspection scope and findings were summarized on September 5, 1986, with

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those persons indicated in paragraph 1 above. The inspector described the areas inspected and discussed in detail the inspection finding No dissenting comments were received from the licensee.

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l The licensee did not identify as proprietary any of the materials provided l to or reviewed by the inspector during this inspection.

i Licensee Action on Previous Enforcement Matters The following violations were identified in inspection report 338/339-85-28 during an inspection of modifications to the service water intake structure conducted on October 28 - November 1,198 Evaluation of the licensee's corrective actions on these items are as follows:

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(Closed) Violation 338,339/85-28-01, Failure to Control Temperature of Concrete. Test Cylinders. During the referenced inspecition, the

inspector observed that -concrete test- cylinders in the field and laboratory curing room were not being controlled in accordance with the temperature requirements of ASTM C.3 Review of records during this inspection.showed that concrete design ,

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. strengths were achieved even though temperatures were not being i controlled in accordance with ASTM C.31 requirements. Observations during this inspection showed that corrections to the laboratory curing

, room- water and cooling systems has resulted in proper temperature controls for laboratory cured test cylinders.- Observations also showed

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that the licensee has placed curing boxes in the field which have heating and cooling controls and high-low thermometers for monitoring temperature controls. These corrections assure that curing of test

! cylinders will meet ASTM C.31 requirements. This item is closed.

l (Closed) Violation 338, 339/85-28-02, Failure to Control Moisture i

Content of Select Fill. Review of records during the NRC inspection conducted during October 28 - November 1,1985, indicated that the select fill moisture was not controlled to 3 percent of the optimum moisture requirements as specified by Specification NAS3003, Excavation Fill and Backfill Service Water Buried Piping Installation.

I As a result of this finding, test pits were excavated into the backfill and the material was retested. Test results showed that the inplace fill met the requirements of Specification NAS3003. Procedures were also revised to control the testing of the backfil Review of procedures and inspection records during this inspection showed that specification requirements are being adhered to and that problems with l

the backfill is being controlled in accordance with requirements. This I item is close (Closed) Violation 338, 339/85-28-03, Failure to Meet Specified Concrete Test Requirements for Slump, Air Content, Temperature and Aggregates and Document Correct Quantities of Concrete Mix Ingredients on Batch Tickets. Review of records during the October - November 1985 inspection showed that tests for slump, air content and temperature were not being made for each truck of concrete delivered as required by Specification NAS2014, Supply of Materials, Batching, Mixing, and Delivery of Ready Mix Concrete. The review also showed that the amount

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of fine and course aggregate and water was not always shown on batch i tickets and that gradations tests were not being performed as required

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by Specification NAS201 In response to this item, the licensee revised specifications to

! eliminate confusion in test frequencies. Procedure were also issued to control testing activities, additional staff was hired to perform inspections at the batch plant, at pour placements and testing laborator Observation of placement activities and examination of procedures, specifications, and inspection records during this

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inspection showed the specification and procedure requirements were being met. This item is close (Closed) Violation 338,339/85-28-04, Failure to Have a Procedure Which Implements Current Specification Procedure QC101.1, Civil Inspections, which was written to implement specifications for Unit 3 (which has been cancelled) was being used to control the inspection and documentation of work related to modifications of the service water intake structure. This procedure was not appropriate in that it did not reference the current specifications being used to control the ongoing modification Review of procedures during this inspection showed that adequate procedures have been developed to control work and inspection activities for modifications to the service water intake structur This item is closed. Unresolved Items Unresolved items were not identified during the inspection. Modifications to Service Water Intake Structure This inspection covered examination of specifications, procedures, and records, and observation of work activities for ongoing modifications to the Service Water Intake Structure in the areas of structural concrete and foundations. Controlling specifications and procedures examined by the inspector are as follows:

Specification NAS2014, Supply of Materials, Batching, Mixing, and Delivery of Ready Mix Concrete

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Specification NAS2029, Placement of Concrete and Reinforcing Steel Specification NAS3006, Fill and Backfill of the Expansion Joint Access Pit Specification NAS3003, Excavation, Fill and Backfill, Service Water Buried Piping Installation Specification NAS3008, Installing Support Structures for DC 84-31 Specification NAS3011, Excavation Fill and Backfill, Electrical Ductbank Work Procedure WP105, Engineering and Construction Work Procedure, Concrete

Work Procedure WP106, Engineering and Construction Work Procedure, Excavation and Backfill

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Work Procedure WP107, Engineering and Construction Work Procedure, Grouting

Quality Assurance Department Instructions QADI 10.3.1, Excavation and Backfill Testing

Quality Assurance Department Instruction QADI'10.3.3, Concrete Testing

Quality Assurance Department Instruction QADI 10.3.4, Concrete Inspection

Quality Assurance Department Instruction QADI 11.1, Calibration of Soils, Concrete and Aggregate Testing Equipment

Records examined included inspection reports, concrete test data, backfill test results, nonconformance reports, concrete aggregate test data, certification records for cement, admixtures and rein forcing steel and calibration records for concrete and soils testing. equipment and the concrete batch plant. Examination of these records showed that inspections, testing, calibration of equipment, and receipt inspection of materials were being documented in accordance with specifications and procedures and that j problems were being identified and correcte Observation of work activities included ongoing concrete and grout place-ments, slump air and temperature tests on concrete mixes, making of concrete test cylinders, temperature controls for concrete test cylinders, vibration of concrete placements and batch plant operations. The inspector also observed inspection activities being conducted by construction engineers, and QC inspector Observations showed that construction work and inspection activities and documentation of work activities were being performed in accordance with specification and procedure requirements, that adequate specifications and procedures were in place for the control of these activities, and that management staff was actively involved in assuring that ongoing modifications were being conducted in accordance with requirements.

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