IR 05000518/1979022
| ML19210D438 | |
| Person / Time | |
|---|---|
| Site: | Hartsville  |
| Issue date: | 09/28/1979 |
| From: | Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19210D417 | List: |
| References | |
| 50-518-79-22, 50-519-79-22, 50-520-79-22, 50-521-79-22, NUDOCS 7911270069 | |
| Download: ML19210D438 (4) | |
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101 MARIETTA sT N.W., SUITE 3100 ATLANTA, G EoRGIA 30303 Report Nos-- 50-518/79-22, 50-519/79-22, 50-520/79-22 and 50-521/79-22 Licensee: Tennessee Valley Authority 500A Chestnut Street Chattancc,ga, Tennessee 37401 Facility Name: Hartsville Docket Nos. 50-518, 50-519, 50-520 and 50-521 License Nos. CPPR-150, CPPR-151, CPPR-152, and CPPR-153 Inspection at Hartsville site _near Hartsville, Tennessee f/M/7/
Inspector:
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%W J. R Harris Date Signed
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Approved by: c- -
M 9 -.2. P-77 T. E. Conlon, Section Chief, RCES Branch Date Signed
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SUMMARY Inspection on September 5-7, 1979 Areas Inspected This routine inspection involved 21 inspector-hours onsite in the areas of construction status; structural concrete and spray ponds.
Results Of the three areas inspected, no apparent items of noncompliance or deviations were identified in two areas; one apparent iten of noncompliance was found in one area (Infraction-Spray pond support fill testing-paragraph 7).
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DETAILS 1.
Persons Contacted Licensee Employees
- R. T. Hathcote, Project Manager
- W. T. Quinn, Construction Engineer, BOP
- R. E. Young, Assistant Construction Engineer, BOP
- L. H. Jackson, Assistant Construction Engineer, STRIDE
- J. W. Davenport, Materials Engineer Supervisor, STRIDE
- B. E. Huffaker, Materials Engineer Supervisor, B0P R. L. Long, Materials Engineer
- W. R. Brown, Construction Engineer, STRIDE R. C. Nixon, Document Control Supervisor.
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on September 7,1979, with those persons indicated in Paragraph I above.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Item 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 paragraphs 5 and 7.
5.
Independent Inspection The inspector examined the following areas:
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a.
Batch plant b.
Soils and concrete laboratory c.
Records on concrete placement number A 2R-2A in the Unit A-2 Shield building.
d.
Certification records of six QC earthwork inspectors 1799
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In examining records on placement A 2R-2A, the inspector was unable to determine if the required sampling interval of one sample for each 150 cubic yards had been met. A similar problem was encountered in examining records on earth fill in the spray pond, see paragraph 7.
The present scheme of documenting test data does not appear to show if required sampling intervals are being met for inprocess testing on concrete and earthfill.
This was identified to the licensee as Unresolved Item 518/79-22-01, 519/
79-22-01, 520/79-22-01 521/79-22-01, " Documentation of Inprocess Test Data On Concrete and Earthfill".
No deviations or items of noncompliance were identified.
6.
Lakes, Dams and Canals - Observation of Work and Work Activities, Units A-1 and B-2.
The inspector observed placement of Support fill for the spray ponds.
Acceptance criteria examined by the inspector were:
a.
TVA Construction Specification, N6C-875, " Earth and Rock Foundations and Fills" TVA Construction Specification G-9, " General Construction Specification c.
for Rolled Earthfill Dams and Power Plants" d.
QCI-C-101, "Earthfill Daily Inspection" e.
QCI-C-102, " Excavation and Fill, Percent Compaction and Moisture Content" Observations showed that specified materials were being placed in designated areas and that the required frequency of tests were being made by QC inspectors.
No deviations or items of noncompliance were identified.
7.
Lakes, Dams and Canals - Review of Quality Records, Units A-1 and B-2 The inspector examined quality records for the support fill placed around the A-1 and B-2 spray ponds. The records covered 44,260 cubic yards of material placed during August 3 to August 31, 1979. Acceptance criteria examined by the inspector are the same as those listed in paragraph 6.
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Examination of records and acceptance criteria disclosed the following noncompliance and unresolved items:
Specification N6C-875 requires that earthfill operations be conducted a.
in accordance with the requirements of TVA Specification G-9.
Specifi-cation G-9, paragraph 11.2 states, "To confirm correlation with the central laboratory compaction curves, at least once for each 50 routine tests on each soil type being used, a 3 point moisture compaction test 1799 717)
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shall be made on each soil type". Discussions with responsible engineers and further examination of records by the inspector disclosed that since July 1978 more than 50 routine tests have been performed on CL type soils which have been placed in the central and support fill areas of the Units A-1, A-2, B-1, and B-2 spray ponds and that no 3-point compaction tests have been made to date. This was identified to the licensee as Noncom-pl.ance Item 518/79-22-02, 519/79-22-02 520/79-22-02 and 521/79-22-02,
" Spray Pond Support Fill Testing".
b.
In examining inspection test data, the inspector was unable to determine if the requirement of one density test for each 2000 cubic yards placed was being met. This was included as part of the unresolved item dis-cussed in paragraph 5.
c.
Procedure QCI-C-102, " Excavation and Fill, Percent Compaction and Moisture Content", appears to be inadequate.
Specifications N6C-875 and G-9 require that Atteberg limits'and one point compaction tests be performed at specified intervals. Procedure QCI C-102 does not appear to address these tests. Discussions with responsible engineers disclosed that one point compaction and Atteberg limits test are being performed and that a revised procedure clarifying these items is currently being drafted.
This was identified to the licensee as Unresolved Item 518/79-22-03, 519/79-22-03, 520/79-22-03 and 521/79-22-03 " Revision of Procedure QCI-C-102".
8.
Containment (Structural Concrete II) - Observation of Work and Work Activities, Unit A-2 The inspector observed form removal and curing operations on placement A 2R-2A in the Unit A-2 Shield Building. Acceptance criteria examined by the inspector were:
a.
PSAR, Section 3.8.3.1.6.1 b.
TVA Specification G-2 " Plan And Reinforced Concrete" c.
C. F. Braun Specification, " Concrete TVA STRIDE" d.
Procedure QCI-C-202, " Concrete Curing" Observations showed that form removal and curing operations were being controlled in accordance with acceptance criteria.
No deviations or items of noncompliance were identified.
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