IR 05000491/1980005
| ML19323G889 | |
| Person / Time | |
|---|---|
| Site: | Cherokee  |
| Issue date: | 04/29/1980 |
| From: | Conlon T, Harris J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19323G880 | List: |
| References | |
| 50-491-80-05, 50-491-80-5, 50-492-80-05, 50-492-80-5, 50-493-80-05, NUDOCS 8006090156 | |
| Download: ML19323G889 (4) | |
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UNITED STATES O !'
i nuc'e^a aeou'Aroav co==issios r
REGION 11
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o 101 MARIETTA ST N.W SUITE 3100 ATLANTA, GEORGIA 30303
APR 2 91980 Report Nos. 50-491/80-05, 50-492/80-05 and 50-493/80-05 Licensee: Duke Power Company 422. South Church Street Charlotte, NC 28242 Facility Name:
Cberokee Nuclear Station Docket Nos. 50-491, 50-492, and 50-493 License Nos. CPPR-167, CPPR-168 and CPPR-169 Inspection at Cherokee site near Gaffney, South Carolina Inspector:
O 9/hlr/MM J.R.parris'
Dat'e Signed
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pff f;fM E7 Approved by:
J T. E. Conlod', Section Chief, RCES Branch Datd Sigbed SUMMARY Inspection on April 15-17, 1980 Areas Inspected This routine, unannounced inspection involved 18 inspector-hours on-site in the areas of sturctural concrete, nuclear service water dam, licensee action on previous inspection findings and construction status.
Results
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Of the three areas inspected, no items of noncompliance or deviations were identified in two areas; one item of noncompliance was found in one area (Deficiency - Settlement monitoring program paragraph 3).
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DETAILS 1.
Persons Contacted Licensee Employees
- J. T. Moore, Project Manager
- J. W. Willis, Project Senior QA Engineer
- W. H. Lindsay, Project Geotechnical Engineer
- K. W. Schmidt, QA Engineer D. Mason, Supervising Technician, Civil G. Williams, Layout Supervisor Other licensee employees contacted included three civil technicians.
- Attended exit interview.
2.
Exit Interview The inspection scope and findings were summarized on April 17, 1980 with
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those persons indicated in Paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings a.
(0 pen) Unresolved Item 491/79-05-01, 492/79-05-01 and 493/79-05-01:
Use Of Curing Compounds To Which Concrete Is To Be Bonded. Discussions
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with licensee representatives disclosed that use of a curing compound on construction joints has been discontinued. This item remains open pending further evaluation by NRC of the acceptability of the past use,
of a curing compound on construction joints.
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b.
(0 pen) Noncompliance 491/79-10-01, 492/79-10-01, 493/79-10-01, " Place-ment Of NSW Dam Filter Materials At Densities Less Than Specified".
The inspector examined results of cleaning of the blanket drain prior to testing and records of testing on areas of the blanket drain which had been uncovered, recompacted and retested. This item remains open pending completion of the licensee's corrective-action.
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c.
(Closed) Unresolved Item 491/80-03-01, 492/80-03-01 and 493/80-03-01,
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" Settlement Monitoring Program".. Survey loop closure data and settle-ment monitoring on the-unit one reactor and auxiliary building appar-
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ently were not being documented and performed as required. Examination of records and discussions with responsible licensee representatives disclosed that survey loop' closure data was not available on surveys prior to March 10, 1980 and that: settlement monitoring of the auxiliary building and reactor building were not performed as required. Procedure CKB-15, " Settlement Monitoring", paragraph IV.B states, " Settlement
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measurements shall be taken at each monument located on concrete structures within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after ~ removal of concrete forms to establish
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monument elevation". Records disclosed that settlement monitoring on the reactor and auxiliary building was not initiated until three months after removal of forms. This item is closed as unresolved item 491/80-03-01, 492/80-03-01 and 493/80-03-01 and upgraded to Deficiency number 491/80-05-01, 492/80-05-01 and 493/80-05-01 Settlement Monitoring.
Examination of records showed that the licensee has taken proper corrective action on the above items. Documentation forms have been revised to include survey loop closure data and settlement monitoring on the reactor and auxiliary building was performed on March and April 10, 1980. Procedure CKB-15 is being revised to clarify settlement monitoring requirements.
In view of the above actions taken by the licensee no response is required to this item.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Independent Inspection The inspector examined the following areas:
a.
Construction status.
b.
Soils and concrete laboratory and currentness of calibration of laboratory equipment.
Results of concrete placement in the nuclear service water dam spillway.
c.
d.
Records of remedial work on the nuclear service water dam.
No deviations or items of noncompliance were identified.
6.
Containment (Structural Concrete II) - Observations of Work and Work Activities, Unit 1 The inspector observed placement preparation and control of concrete materials for radial wall pour numbers W-331, W-333, W-336 and shell wall pour number W-52 in the unit one reactor building.
3r Acceptance criteria examined by the inspector appear in the following documents:
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PSAR section 3.8.1.6.
b.
Specification number P81S-1109.00-00-0001, Specification For Concrete For Category I Structures.
. Specification number CKS-1162.00-00-001, Reinforcing Steel.
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M-2 Inspection of Design Concrete.
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Drawing numbers P81-1080-13 and P81-1081-19.
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Forms were properly secured,_ leak tight and clean and rebar was properly placed, secured, free of concrete and excessive rust. Concrete materials were being adequately controlled.
No deviations or items of noncompliance were identified.
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