IR 05000424/1987040
| ML20235S358 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/07/1987 |
| From: | Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20235S320 | List: |
| References | |
| 50-424-87-40, 50-425-87-28, NUDOCS 8707210636 | |
| Download: ML20235S358 (5) | |
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UNITED STATES g#e Mo
'o NUCLEAR REGULATORY COMMISSION
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REGloN 81
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101 MARIETTA STREET, N.W.
g ATL AflT A, GEORGI A 30323
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Report Nos..
50-424/87-40 and 50-425/87-28 Licensee: Georgia Power Company P. O. Box 4545 Atlanta, GA 30302 Docket Nos..
50-424 and 50-425 License Nos.:
NPF-68 and CPPR-109 Facility Name:
Vogtle 1 and 2
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Inspection Conducted: June 15-18, 1987
-[W 7-7-F7 Inspector C
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J. R. Harris Date Signed
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Approved Q D
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kWF47F 2-7 - f[
T. E. ConTon, Section Chief Date Signed Engineering Branch l
Division of Reactor Safety
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SUMMARY t
Scope:
This routine, unannounced inspection was in the areas of structural i
concrete, foundations, coatings, structural steel and penetration seals.
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Results:
No violations were identified.
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8707210636 070707 PDR ADDCK 05000424 G
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I REPORT DETAILS i
1.
Persons Contacted Licensee Employees
- L. N. Brooks, Civil Discipline Manager
- E. D. Groover, QA Site Manager Construction
- C. W. Hayes, QA Assurance Manager
- G. A. McCarley, Project Compliance Coordinator
- R. H. Pinson, Vice President, Construction
- P. D. Rice, Vice President, Project Director
- C. W. Whitney, General Manager, Project Support Other licensee employees contacted included construction craftsmen, engineers, and technicians.
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NRC Resident Inspector t
- H. H. Livermore, Senior Resident Jnspector Construction
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on June 18, 1987, with those persons indicated in paragraph 1 above. The inspector described the areas inspected and discussed in detail the inspection findings.
No
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dissenting commants were received from the licensee.
The licensee did not identify as proprietary any of the materials provided to or reviewed by the inspector during this inspection.
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Licensee Action on Previous Enforcement Matters This subject was not addressed in the inspection.
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Unresolved Items Unresolved items were not identified during this inspection.
5.
Independent Inspection Effort (92706) - Units 1 and 2 The inspector conducted a general inspection of coatings, grouting and bolting on Unit 2 and installation of penetration seals in Unit 1.
Inspection of coatings involved a walkdown inspection and observation of ongoing coating application in the Unit 2 containment building.
Examination of completed coatings and observation of ongoing coating applications showed that surface preparation, application, and inspection
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of coatings were being done in accordance with specification and procedure requirements.
Inspection of bolting activities included observation of installation and torquing of 3/4 and 7/8 inch diameter ASTM A-325 bolts in a monorail at elevation 220 in the auxiliary building and calibration of torque wrenches used to check the torque of the bolts. Observations showed that the bolts were installed in accordance with drawing A x 2 D11-G012 and Procedure CD-i-16, Structural Steel and Q Decking.
Inspection of penetration seals included a visual examination of penetration seals in the Unit I diesel generator building, control building, and auxiliary building.
The penetration seals being used consist of Dow Corning 3-65ii8 Silicone RTV Foam, Dow Corning.Sylgard 170 Silicone Elastomer, and ICMS P-90, High Density Silicone Elastomer.
The Dow Corning 3-6548 Silicone RTV Foam and Dow Corning 170 Silicone i
Elastomer are used as pressure, fire or water stops around electrical conduits and mechanical penetration in walls and floors. The ICMS product 90 is used for attenuating radiation, pressure, fire protection and flooding.
Observation of ongoing work and cortpleted work indicated that the penetration seals were being installed in accordance with requirements specified in procedures QC-10.1, Quality Control Inspection Silicone Foam, QC-10.10, Quality Control Inspection Silicone Elastomer, and QC-10,13, Quality Control Inspection ICMS Product 90 and Specification X1AG11, Penetration Sealing.
Inspection of grouting included grouting four 1-3/8 inch diameter rock bolts for hanger number V2-1301-008-H039 in Room 59, level one of the auxiliary building. The inspection included observation of mixing, flow cone tests, and placing of the grout. Observations showed that the mixing and placing was done in accordance with procedure and specification requirements.
Within the areas examined, no violations or deviations were identified.
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Structural Concrete, Work Observation (46053) - Unit 2 The inspctor observed concrete placement number A-081-009C which was placed in a floor slab of the Auxiliary building in Room 139.
The placement consisted of 43 cubic yards of concrete mix number 510.
Acceptance criteria examined by the inspector appear in the following documents:
Specification X2AP01, Forming, Placing Finishing and Curing Concrete
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Procedure CD-T-02, Concrete Quality Control
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FSAR Section 3 and 17 l
Observation of the placement sho.ved that forms were tight and clean and that rebar was properly installed and clean.
Placement activities i
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l pertaining to delivery time, free fall, flow distance, layer thickness, and consolidation conformed to specification requirements.
Concrete placement activities were continuously monitored by QC inspectors.
Examination of batch tickets showed that the specified design mix was delivered.
Samples of plastic concrete were obtained from designated
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sampling points and were tested in accordance with specification requirements. Tests results showed that the plastic concrete being placed
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met requirements for slump, air content, and temperature.
Examination of
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the testing laboratory and batch plant showed that the batching and
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testing equipment were in calibration and that test cylinders were being
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cured properly.
i Within the areas inspected, no violations or deviations were identified.
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Structural Concrete Record Review (46055) - Unit 2 l
The inspector examined quality records for the following grout and concrete placements:
A-08A-083-AX4 A-082-006-X1 A-08A-083-X3X4X6 A-088-012-G A-08A-071A-X3 A-081-0085 l
A-08A-067-X3 2-051-008A A-08A-065A-X1 2-448-040, 041 A-08A-065-CX1 2-1201-B6-004-G Acceptance criteria examined by the inspector appear in Specification X2AP01, Forming, Placing, Finishing and Curing Concrete, and Procedure CD-T-02, Concrete Quality Control.
Records examined by the inspector included batch tickets, batch plant inspection reports, replacement inspection tert data for air slump and temperature, strength test results, curing, rebar splicing, aggregate and
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l cement storage and nonconformance reports.
Within the areas examined, no violations or deviations were identified.
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Geotechnical/ Foundation Activities - Work Activities (45053) - Unit 2 The inspector examined controls on backfilling in the Unit 2 powerblock i
l and observed compaction, sampling, and testing of backfill. Controls for the backfill are specified in Specification X2AP01 C2.2 Rev.17, Earthwork
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I and Related Site Activities, and Procedure CD-T-01 Rev.17, Earthwork l
Quality Control.
Observation of work activities and review of test results showed that the backfill was being controlled in accordance with specification and procedure requirements.
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Geotechnical/ Foundation Activities-Record Review (45055) - Unit 2 The inspector examined records for Compaction Controls for backfill placed
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in the Unit 2 powertiock.
Records examined were for backfill placed I
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during May and June of 1987.
Records examined included Sandcone density tests, moisture tests, laboratory proctor tests, and calibration controls i
for laboratory test equipment.
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Examination of records showed that the backfill is being compacted to the l
9'! percent of the maximum dry density as determined by ASTM 1557.
The records reviewed also showed that the moisture control of the placed fill is being maintained within the plus two percent and minus three percent of the average laboratory optin.um moisture.
Review of calibration data on
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the test equipnent showed that the calibration requirements were being maintained.
Within the areas examined, no violations or deviations were identified.
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