IR 05000321/1980026

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IE Insp Repts 50-321/80-26 & 50-366/80-26 on 800625-26. No Noncompliance Noted.Major Areas Inspected:Settling of Structural Backfill Around RHR & Plant Svc Water Intake Structure & Piping
ML19344F526
Person / Time
Site: Hatch  Southern Nuclear icon.png
Issue date: 07/22/1980
From: Conlon T, Harris J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML19344F493 List:
References
50-321-80-26, 50-366-80-26, NUDOCS 8009150370
Download: ML19344F526 (3)


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'o, UNITED STATES

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NUCLEAR REGULATORY COMMISSION n

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101 MARIE 1TA ST., N.W., SUITE 3100

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ATLANTA, G EORGIA 30303

JUL 2 31980 Report Nos. 50-321/80-26 and 50-366/80-26

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Licensee: Georgia Fower Company 270 Peachtree Street Atlanta, GA 30303 Facility Name: Hatch Nuclear Plant I and 2 Docket Nos. 50-321 and 50-366 License Nos. DPR-57 and NPF-5 Inspection at Hatch site near Baxley, Georgia Inspector:

  1. 1< rid 7 - 2 M - [O J. R. Harris Date Signed Approved by
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'Date Signed SUMMARY Inspection on June 25-26, 1980 Areas Inspected This special, unannounced inspection involved 9 inspector-hours on site in the area of a licensee identified item concerning settling of structural backfill around the RHR and plant service water intake structure aad piping.

Results l

Of the one area inspected, no item of noncompliance or deviation were identified in one area.

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DETAILS

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1.

Persons Contacted.

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Licensee Employees

  • M. Manry, Project Manager
  • C. Belflower, Site QA Manager
  • D. McCusker, QC Supervisor -
  • T. Greene, Assistant Plant Manager M. Meeks, Senior Design Engineer
  • L. Summer, Engineering Supervisor C. Miles, QA Field Supervisor
  • C. Moore, Assistant Plant Manager NRC Resident Inspector R. Rogers
  • Attended exit interview 2.

Exit Interview The inspection scope and findings were summarized on June 26, 1980 with j

those persons indicated in Paragraph I above.

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3.

Licensee Action on Previous Inspection Findings Not inspected.

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Unresolved Items Unresolved items are matters about which more information is required to determine whether they are acceptable or may involve noncompliance or deviations.

New unresolved items identified during this inspection are discussed in paragraph 5.

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Licensee Identified Item (LER)

(0 pen) Item (50-321/80-062):

Settling of Fill Under Plant Service Water and RHR Service Water Piping The inspector performed a special unannounced inspection to examine the licensee's investigation on LER 50-321/80-062 which was reported to NRC, RII on June 12, 1980.

Investigative excavations adjacent to the plant service water intake structure following deflection of asphalt pavement-under a crane outrigger pad revealed settlement. separation of the fill from underneath piping and~the existence of a temporary support under a 36-inch

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diameter plant service water pipe line. The licensee is currently investiga-ting the extent of'the problem and will submit a resolution when results of

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. 6 the. investigation are analysed and the appropriate course of action is

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determined. Examination of backfill controls used by the licensee in the

. original placement of the earthfill disclosed the following unresolved aspects of backfill controls:

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Procedures did not appear to be specific with regard to test frequency a.

and acceptance criteria b.

The specified lift thickness of two feet for fill around the intake structure appeared to be too excessive for good compaction control Preliminary testing iadicates that the fill was not placed in accordance c.

with acceptance criteria d.

Acceptance criteria for backfill around the intake structure are not clear-Records documenting that the fill around piping was placed in accordance e.

with acceptance criteria do not appear to be available The above aspects of backfill control were identified to the licensee as Unresolved Item 50-321/80-26-01 and 50-366/80-26-01, Plant Service Water and RHR Service Water Intake Structure and Associated Piping Backfill

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