IR 05000424/1979004
| ML19263E412 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/30/1979 |
| From: | Herdt A, Hunt M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19263E410 | List: |
| References | |
| 50-424-79-04, 50-424-79-4, 50-425-79-04, 50-425-79-4, NUDOCS 7906180098 | |
| Download: ML19263E412 (4) | |
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UNITED ST ATES e' #8 00 9'o,,
NUCLEAR REGULATORY COMMISSION g
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Report Nos. 50-424/79-4 and 50-425/79-4 Licensee: Georgia Power Company 270 Peachtree Street, N. W.
Atlanta, Georgia 30303 Facility Name Alvin W. Vogtle Nuclear Plant Docket Nos.
50-424 and 50-425 License Nos.
CPPR-108 and CPPR-109 Inspection at Vogtle Site near Waynesboro, Georgia
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Inspector:
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Date Signeu M. D. Hunt'
Approved by:
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A. R. Herdt,lection Chief, RC&ES Branch Dat e 5'i gned SLM1ARY Inspection on March 6-8, 1979 Areas Inspected This routine unannounced inspection involved 18 inspector-hours on site in the areas of 10 CFR 50.55(e) items, previous inspection findings, water quality, QC inspector training and steel f abrication shop material control.
Results Of the five areas inspected, no apparent items of noncompliance or deviations were ident i f ned.
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DETAILS t
1.
Persons Contacted Licensee Employees
- H. H. Gregory, 111, Assistant Construction Project Manager
- C. R. Miles, Jr., QA Field Supervisor
- D. M. Figuett, Manager, Field Operations
- E.
D. Groover, QA Site Supervisor Other Organizations
- F. R. McCarty, Walsh Construction Company
- G. S. Wisen, Walsh Construction Company
- Attended Exit Interview.
2.
Exit Interview The inspection scope and findings were summarized on March 8, 1979 with those persons indicated in Paragraph I above. The licensee was advised that no items of noncompliance or deviations were identificu in the areas inspected.
3.
Licensee Action on Previous in3; ection Findings r ilure to calibrate fine aggregate (0 pen) Inf raction, 424-425/79-01-01, a
test sieves - The licensee's response to RII dated February 23, 1979 advised that a sieve inspection unit had been obtained with fu'l compliance expected by March 9,1979. However, the licensee is awaiting receipt of calibrated sieves to certify the inspection unit.
(0 pen) Unresolved Item 424-425/79-01-02 - Admixture metering control, The licensee is developing a calibration procedure for the metering controls. RII will continue to follow development of this procedure.
(0 pen) Infraction 425/78-09-01.
Failure to f ollow procedures during conc rete placement.
The licensee is revising construction procedure CD-T-02, Concrete Quality Control. The procedure will address the use of vibrators and in process concrete testing.
4.
Unresolved Items Unresolved items were not identified during this inspection.
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Independent Inspection Effort a.
QC Inspector Training
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i The inspector reviewed the schedule for training of QC inspectors in the various construction disciplines. The courses included in the schedule are to be used for new inexperienced personnel. The personnel now at the site who have been certified will be assigned to the QC inspection staff as the work load in the various disci-plines increases.
b.
Water Wells The licensee will use two deep wells for the site water supply, both potable and general. The inspector reviewed a report of the analysis of water samples taken from each well. As of April 24, 1978 well No. I had a chloride content of 2.77 ppm; well No. 2 as of September 19, 1978 had a chloride content of 3.13 ppm.
The inspector reviewed the drawings of the site water system piping.
The system is designed such that water treated with chlorine (potable water) can not be used for construction purposes.
Within the areas examined, no items of noncompliance or deviation were identified.
c.
Steel Fabrication Shop.
The inspector reviewed the material control methods used by the licensee to maintain traceability of QA items that are site fabricated.
Material is moved into the fabrication shop storage area in heat number lots, in that only material of a certain type having the same heat number will be in that area at any time.
All material of one heat must be consumed before additional like material is moved into the area.
A records checkoff system has been established to assure that all items fabricated are properly identified and inspected.
All welding will have the welder's ID stamped on the item.
Within the areas examined, no items of noncompliance or deviation were ioentified.
6.
Licensee Identified items (Lil) 10 CFR 50.55(e)
(Open) LII 424/78-09-02 and 425/78-09-03 - Improper Fabrication of imbeds.
The inspector reviewed the Ult rasonic Testing (UT) methods for examining the imbeds which were installed prior to the licensee's submittal of this Construction Deficiency Report. Mock-up imbeds'were fabricated with known imperfections. Under close control these mock-up 2355 264
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-3-imbeds were examined by the UT method to ensure that the imperfections could be detected.
Once the method was proven adequate,these imbeds were instaltea in a test block having rebar to simulate a$tual designed s
installation.
Concrete was then placed in the block and allowed to cure.
The UT inspectors who would perform the test on the field installed imbeds, tested the mock-up imbeds in the test block and recorded the results. Their ability to identify the imperfections is being eval-uated by a Level III UT inspector.
Within the areas examined, no items of noncompliance or deviations were identified.
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