IR 05000424/1980007
| ML19329G069 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 05/01/1980 |
| From: | Canlon L, Lenahan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19329G053 | List: |
| References | |
| 50-424-80-07, 50-424-80-7, 50-425-80-07, 50-425-80-7, NUDOCS 8007110536 | |
| Download: ML19329G069 (5) | |
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UNITED STATES 8'
7, NUCLEAR REGULATORY COMMISSION
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eE REGION il
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o, 101 MARIETTA ST., N.W., SulTE 3100
%,..... n ATLANTA, GEORGIA 3C3o3
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MAY-1580
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Report Nos. 50-424/80-07 and 50-425/80-07 Licensee: Georgia Power Company
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270 Peachtree Street Atlanta, GA 30303 Facility Name: Vogtle Nuclear Plant, Units 1 & 2
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Docket Nos. 50-424 and 50-425
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License Fos. CPPR-108 and CPPR-109
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Inspection at Vogtle site near Waynesboro, Georgia Inspector:
f Mo 4~// /fo J.J.Lenahanf(/'
Date Signed
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Approved by:
O eM4 hr 5///N
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T.E.Conlp,SectionChief,RCESBranch Date Signed
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SUMMARY Inspection on April 14-16, 1980 Areas Inspected
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This routine, unannounced inspection involved 18 inspector-hours on site in the arear of foundations work activities and quality records, licensee action on previous inspection findings, licensee identified items, and the soils and concrete laboratory.
Results Of the four areas inspected, no items of noncompliance or deviations were iden-
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i tified in three areas; one item of non cmpliance was found in one area (Infrac-tion - Failure to evaluate moisture check test results paragraph 7).
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8007110536
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I DETAILS 1.
Persons Contacted Licensee Employees
- H. H. Gregory, III, Assistar+. Project Manager
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- D. M. Figuett, Manager, Field Operations
- E. D. Groover, Site QA Supervisor
- R. Allen, Manager, QC B. Harbin, Supervisor, Project Engineering R. W. McManus, Civil QC Supervisor A. N. Lankford, Civil QC Inspector J. E. Seagraves, Assistant Civil QC Supervisor J. F. D'Amico, Senior QA Field Representative Other licensee employees contacted included 6 civil QC inspectors.
Other Organizations J. E. Mah1meister, Resident Engineer, Bechtel F. R. McCarty, Project Manager, Walsh Construction Company
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on April 16, 1980 with those persons indicated in paragraph I above. The licensee acknowledged the noncompliance discussed in paragraph 7.
3.
Licensee Action on Previous Inspection Findings (Closed) Infraction (424/79-13-02): Improper Concrete Consolidation.
The inspector examined records of training sessions held for the construction craftsmen on an approximately monthly basis during which the craftsman are instructed in proper concrete consolidation practices. The inspector v-
nessed partial placement of pour number 1-05D-004, a wall in nuclear service water tower IA. Based on the observation of concrete consolidation practices during this placement, and observation by the inspector during previous inspections, this item is closed.
s 4.
Unresolved Items Unresolved items were not identified during this inspection.
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5.
Independent Inspection Effort The inspector examined the following areas:
a.
Level D storage areas.
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Construction status.
c.
Concrete and soils laboratory and currentness of c #1ibration of labora-tory equipment.
d.
Concrete batch plant.
No deviations or items of noncompliance were identified.
6.
Foundations - Observation of Work and Work Activities - Units 1 & 2 The inspector witnessed placement and inspection of fill between the Unit 2 tendon gallery wall and the west electric tunnel and between the tendon gallery wall and reactor cavity in the Unit I containment building. Accept-ance criteria examined by the inspector appear in the following documents:
a.
Section 2C of the PSAR.
b.
Bechtel Specification X2AB01, " Site Preparation and Earthwork".
Georgia Power Procedure number CD-T-01, " Earth Work Quality Control".
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Dewatering is being controlled by well points and ditches. The fill material was placed and compacted at the specified moisture content. Lift thicknesses did not exceed the maximum alJowed by the specifications. All fill operations were continuously monitored by QC inspectors.
No deviations or items of noncompliance were identified.
7.
Foundations - Review of Quality Records - Units 1 and 2 The f aspector reviewed the following quality records relating to fill placement in the powerblock area:
Civil daily inspection reports for January through March,1980.
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b.
Results of field density tests and proctor tests rerformed in March, 1980, c.
Results of daily moisture correlation check tests performed f rom September 13, 1979 through April 5,1980.
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Training and qualification records of 6 QC inspectors.
Acceptance criteria examined by the inspector are listed in paragraph 6.
Examination of the above records disclosed the following noncompliance:
Appendix F to procedure number CD-T-01 requires that daily correlation check tests be performed to verify that the moisture content determined c
by use of the rapid (open pan) method correlates with the moisture
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i-3-content determined by the ASTM D 2216 (oven) method. Review of the check test results and discussions with responsible inspectors and engineers disclosed that these test results had not been evaluated to verify that the rapid method correlates with the ASTM D 2216 method, Criterion XI of Appendix B to 10 CFR 50 requires that test results be evaluated to assure that test requirement have been satisfied. The failure to evaluate the moisture check test results was identified to the licensee as Infraction item 424, 425/80-07-01, " Failure to evaluate soils moisture test results".
No deviations were identified.
8.
Licensee Identified Items (10 CFR 50.55(e))
Prior to this inspection the licensee identified the following items under 10 CFR 50.55(e):
a.
(0 pen) Item (424, 425/79-18-01): Erosion of Category I Backfill. The inspector toured the power block. The measures which have been taken to stabilize the slopes from further erosion have been effective. The licensee has completed installation of well point systems within the Unit I and Unit 2 containment tendon gallery areas and north of and parallel to the auxiliary building. The inspector examined the revised criteria for testing of water removed by the wellpoint systems. The purpose of the testing is to verify that fines are not being removed (pumped) from the foundation. The inspector examined water samples collected from the we11 point system, the recults of tests which have been performed on water samples, and civil daily inspection reports which document QC inspection of the wellpoint system. 1he ihapector witnessed removal of a portion of mud mat for unit I containment tendon gallery and observed performance of in place (sand cone) density testing of the foundation material under the mud mat. The licensee plans to remove a portion of the mud mat from the Unit 2 containment tendon gallery and perform in place density testing of the foundation material below the mud mat in the near future. Region II and NRR will be notified prior to start of this testing.
b.
(Closed) Item (424, 425/79-19-01): Voids in auxiliary building concrete.
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The licensee notified Region II on December 20, 1979, of a deficiency involving voids in concrete in the wall of the auxiliary building. The voids occurred in walls which were heavily congested with reinforcing steel, embedments, pipe sleeves and blockouts. The inspector toured the auxiliary building area and examined walls in which concrete had been placed since this deficiency was identified. Based on observations of the completed pours, the corrective actions taken by the licensee to minimize the occurrences of voids in the concrete appear to have been effective. The inspector reviewed the licensee's final report received in Region II office on March 3,1980 concerning this deficiency, and discussed the problem and corrective action with licensee engineers.
This item is closed.
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(Open) Item 425/80-04-01: Undermining of the control building Unit 2 electric tunnel foundation. The inspector reviewed the disposition of nonconformance report number CD-780 which. documents the corrective action for repair of the erosion damaged foundation. The corrective action included removal of loose foundation' materials, in place density testing to verify foundation materials remaining in place conform to design and specification requirements, and placement of fill concrete or grout to replace foundation materials which were eroded or excavated.
This item remains open pending review of the licensee's final report.
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