IR 05000553/1979016
| ML19211D053 | |
| Person / Time | |
|---|---|
| Site: | Phipps Bend  |
| Issue date: | 11/19/1979 |
| From: | Conlon T, Lenahan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19211D039 | List: |
| References | |
| 50-553-79-16, 50-554-79-15, NUDOCS 8001160188 | |
| Download: ML19211D053 (5) | |
Text
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o UNITED STATES l ' )#(#f.a f( o NUCLEAR REGULATORY COMMISSION
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101 MARIETTA ST., N.W., SulTE 3100
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ATLANTA, GEORGIA 30303 o
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NOV 211979 Report Nos. 50-553/79-16 and 50-554/79-15 Licensee: Tennessee Valley Authority 500A Chestnut Street Tower II Chattanooga, Tennessee 37401
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Facility Name:
Phipps Bend Nuclear Plant, Units 1 & 2 Docket Nos. 50-553 and 50-554 License Nos. CPPR-162 and CPPR-163 Inspected at Phipps Bend Site near Kingsport, Tennessee Inspected pet y
//-/T*7f J. J. Lenahin Date Signed
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Approved by M
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T. E. Tonlon, Section Chief, RCES Branch Date Signed SUM 1ARY Inspected on November 5-8, 1979 Areas Inspected This routine, unannounced inspection involved 30 inspector-hours onsite in the areas of structural concrete quality records, Level B and C storage, soils and concrete laboratory, and construction status.
Results of the four areas inspected, no apparent items of noncompliance or deviations were identified in three areas; one apparent item of noncompliance was found in one area (Improper curing and testing of concrete cylinder - Details para-graph 5).
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DETAILS 1.
Persons Contacted Licensee Employees
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- W. P. Kelleghan, Project Manager
- G. W. Wadewitz, Construction Engineer
- J. C. Cofield, Asst. Construciton Engineer, Project Engineering
- G. W. Hogg, Supervisor, Materials and Civil QC
- R. C. Young, Civil QA Engineer
- L. G. Hubert, OEDC QA Staff Engineer A. P. Avel, Project Geologist Other licensee employees contacted included 8 civil QC inspectors.
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on November 8, 1979 with those persons indicated in Paragraph 1 above. The licensee acknowledged the noncompliance discussed in Paragraph 5.
In addition, the requirements of reporting of construction deficiencies was discussed briefly with the licensee.
The inspector noted that the licensee is presently meeting these requirements.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Independent Inspection Effort The inspector examined the following areas:
a.
Overall construction status b.
Level B and C storage areas c.
Fabrication of embedment plates d.
Application of protective coating materials to embedments 1756 346
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Reinforcing steel laydown area f.
Receiving inspection reports and results of physical and chemical tests (certified material test reports) performed on reinforcing steel - heat numbers C9-2904, C9-2907, C9-2908, C9-3539, C9-3540 39-3426, 39-3427, 39-3428, 39-3436, and 39-3437
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g.
Partial placement of concrete pour number Al-AD01-10A, a wall in the Unit I auxiliary building, and partial placement of pour number R1 AM01-1F, grouting of weir wall and dry well plates in Unit I reactor buildfug.
h.
Partial placement of concrete pour number T1-BF02-11, an interior wall and columns in the Unit I turbine building. High slump concrete batched using super plasticizer admixtures was used in this pour i.
Soils and concrete laboratory and currentness of calibration of laboratory equipment j.
Concrete batch plant k.
Curing and unconfined compression testing of concrete cylinders.
Examination of the curing and testing of concrete cylinders in the soils and concrete laboratory disclosed the following noncompliance:
Procedure QCI-C-208 specifies that concrete cylinders be stored in accor-dance with the requirements of ASTM C-31.
ASTM C-31 requires cylinders to be moist cured until time of testing. ASTM C-31 defines moist curing as a condition in which the concrete cylinders have free water maintanined on their entire surface at all times. Procedure QCl-C-209 specifies that concrete cylinders be tested in accordance with requirements of ASTM C-39.
ASTM C-39 requires that the rate of loading during testing of the concrete cylinder be applied within the range of 20 to 50 psi per second. On November 7, 1979, during inspection of the curing room, the inspector observed that the surfaces of cylinders number 1308F, 1371E, 1371F, P ^I, 1378F, and 1434F were dry. On the same date, during observation of unconfined compression testing of concrete cylinders, the inspector noted that the rate of loading was applied in the range of 60 to 70 psi per second during testing of cylinder numbers 1174E, 1174F, 1175E, 1175F, 1176E, 1176F, and 1170E. The above examples of failure to follow procedure were identified to the licensee as deficiency items 553/79-16-01 and 554/79-15-01. The inspector reviewed the concrete cylinder log and noted that concrete cylinder strength test results were approximately 50 percent higher than the strengths required by design.
No deviations were identified.
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6.
Containment (Structural Concrete I) - Review of Quality Records - Units 1 and 2 The inspector examined quality records for pour numbers R1-AM01-1A, R1-AM01-1B, R1-AM01-IC, ID, IE, R2-AM01-1A, and R2-AM01-1B.
Pour number R1-AM01-1A was placed on December 19-20; pour number R1-AM01-1B on February 6-7, 1979; pour number R1-AM01-16, ID, 1E on September 24-26,
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1979; pour number R2-AM01-1A on June 13-14, 1979; and pour number R2-AM01-1B on August 24, 1979. Records examined were as follows:
Resulta of mixer efficiency tests performed on Februay 21, 1979, a.
June 1, 1979, and September 12, 1979.
b.
Batch plant scale calibration records for months of February 1979 through October 1979.
Results of inprocess testing of concrete including slump, air content, c.
unit weight and temperature for pour numbers R1-AM01-1C, ID, IE and R2-AM01-1B.
d.
Preplacement inspection records (pour cards), batch plant inspecticn records, and curing records for pour numbers R1-AM01-1C, ID, 1E and R2-AM01-1B.
Results of unconfined compression testing of concrete cylinders listed e.
below.
Pour Number Age at Time of Testing R1-AM01-1A 90 and 180 days R1-AM01-1B 90 and 180 days R1-AM01-1C, ID, 1E 7 and 28 days R2-AM01-1A 28 and 90 days R2-AM01-1B 3, 7, and 28 days f.
Certifications and training records of 10 Civil QC inspectors.
g.
QA audits listed below.
Audit Number Title PB-L-79-01 Receipt, Inspection Storage and Documentation of Concrete Materials PB-L-79-02 Receipt, Inspection, Storage, and Documentation of Concrete Materials.
1756 348 PB-L-79-03 Concrete Placement and Documentation
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Acceptance criteria examined by the inspector were TVA specification G-2, C. F. Braun specification 300-01, procedures QCI-C-201, QCI-C-202, QCI-C-208 through QCI-C-210, QCI-C-212, and SOP No. 14.
No deviations or items of noncompliance were identified.
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