IR 05000404/1981003
| ML20040C406 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 12/23/1981 |
| From: | Conlon T, Linahan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20040C363 | List: |
| References | |
| 50-404-81-03, 50-404-81-3, NUDOCS 8201270607 | |
| Download: ML20040C406 (4) | |
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NUCLEAR REGULATORY COMMISSION o
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E REGION 11 f
101 MARIETTA ST., N.W., SUITE 3100 o
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ATLANTA, GEORGIA 30303 G
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t Report No. 50-404/81-03 Licensee:
Virginia Electric and Power Company Post Office Box 26666 Richmond, VA 23261 Facility Name:
North Anna Unit 3 Docket No. 50-404 License No. CPPR-114 Inspection at North Anna site near ineral, Virginia 1nspector:
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u J. J. Lenahan g g O' ate Signed Approved b me d
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T. E. Conlon, Section Chief Date Signed Engineering Inspection Branch Engineering and Technical Inspection Division SUMMARY Inspection on December 8-10,-'1981 Areas Inspected This routine, unannounced inspection involved 16 inspector-hours on site in the areas of foundation preparation QA/QC controls, work activities, quality records, and the soils and concrete laboratory.
Results j
Of the areas inspected, no violations or deviations were identified.
0201270607 811224
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REPORT DETAILS 1.
Persons Contacted Licensee Employees
- P. G. Perry, Site Manager, Unit 3
- G. Helm, QA Manager, Engineering and Construction
- S. B. Riggs, Resident QC Engineer
- D. S. Hart, Civil QC Engineer J. Anderson, Area Engineer B. Brookman, Senior QC Inspector J. Nedza, QC Inspector R. Hollins, QC Inspector Other Organizations A. Brown, Civil Engineer, Stone and Webster D. Creger, Engineering Geologist, Stone and Webster
- Attended exit interview
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2.
Exit Interview The inspection scope and findings were summarized on December 10, 1981 with those persons indicated in paragraph I above.
3.
Licensee Action on Previous Inspection Findings
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Not Inspected 4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Independent Inspection Effort The inspector examined the following areas:
a.
Construction Status b.
Soils and concrete laboratory and currentness of calibration of labora-tory equipment.
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Curing and testing of grout cubes and concrete cylinders, d.
Receiving inspection records and certified material test reports for reinforcing steel heat numbers 208N097, 208N869, and 209P677.
No violations or deviations were identifie,
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6.
Foundations - Review of QA Implementing Procedures - Unit 3 The inspector examined drawings, specifications, and quality control proce-dures for foundation preparation work for the Unit 3 Service Building, Safeguards Area, and Mainsteam and Quench Spray Area. The following docu-ments were examined to determine if work activities and quality control and ouality assurance functions were provided for as stipulated in NRC require-ments and PSAR Sections 2 and 15:
a.
Specification NAS-30120, Placing Concrete and Reinforcing Steel b.
Specification NAS-30188, Recirculation Spray and Pump Shaft Excavation c.
Specification NAS-30192, Rock Dowel Test Program d.
Specification NAS 30193, Rock Anchor Drilling and Installation e.
Specification NAS-30194, Installation of Orilled Caissons and Tieback Caisson Retaining Wall f.
Quality Control Procedure CQCM No.10.2, " Concrete Quality Control" g.
Quality Control Procedure CQCM No.10.6, Rock Anchor Inspection h.
Quality Control Procedure CQCM No.10.2.2, Concrete Removal and Rebar Cutting Processes 1.
Quality Control Procedure CQCM No.10.2.3, Drilled Caissons and Tieback Caissons J.
Quality Control Procedure CQCM No.10.2.4, Rock Dowel Inspection k.
Quality Control Procedure CQCM No.10.2.6, Rock Bolt Inspection 1.
Drawing number 12180-EC-1C, Caisson Layout and Details, Service Building m.
Drawing number 12180-EC-31Q, Plans and Sections, Rock Anchor Galleries, Main Steam Valve and Quench Spray Areas n.
Drawing number 12180-EC-31R, Sections and Details, Main Steam Valve and Quench Spray Area f
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Drawing number 12180-EC-313, Rock Anchor Details, Main Steam Valve, Quench Spray, & Safeguards Areas p.
Drawing number 12180-FY-30, Containment Structure Excavation q.
Specification NAS 30115, Reinforcing Steel No viclations or deviations were identifie....
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6.
Site Preparation and Foundation - Observation of Work and Work Activities -
Unit 3 The inspector observed excavation (drilling) and cleanout by use of an air lift of caisson numbers S-7 and R-12.
The inspector observed stone and Webster (S&W) engineers where they made in-hole inspections of these
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caissons. After the S&W engineers had completed their preliminary in-hole inspection of caisson S-7, the inspector made an in-hole inspection of this caisson. Based on this in-hole inspection, the inspector concluded that the S&W engineers were performing their caisson inspections in accordance with site procedures, and good engineering practice. The inspector examined
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reinforcing steel cages which had been preassembled for placement in caissons. The size, number and spacing of reinforcing steel and lap splices conformed to the drawing requirements.
The inspector interviewed three licensee QC inspectors concerning the caisson inspection requirements and verified that they were cognizant of their inspection duties. The inspector also witnessed drilling of rock anchor holes in the mainsteam valve area.
Acceptance criteria examined by the inspector are those applicable proce-dures listed in paragraph 5.
No violation or deviations were identified.
7.
Foundations - Review of Quality Records - Unit 3 The inspector examined the following records relating to Unit 3 foundation construction activities:
a.
Results of falling head permeability tests performed on rock anchor hole numbers RA-1 through RA-14 b.
Drilled caisson inspection reports for caisson numbers R-4, R-5, S-13, and S-16 c.
Concrete curing and placement records for Caisson numbers R-4, R-5, and S-16 d.
Nonconformance report numbers 3-0085, 3-0086, 3-0092 through 3-0094, 3-0097, 3-0098, 3-0101 and 3-102 Acceptance criteria examined by the. inspector are those applicable proce-dures listed in paragraph 5.
No violations or deviations were identified.
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