ML19296C835
| ML19296C835 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 01/08/1980 |
| From: | Stello V NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Wiglesworth J RAINEY & WIGLESWORTH |
| Shared Package | |
| ML19296C836 | List: |
| References | |
| NUDOCS 8002280646 | |
| Download: ML19296C835 (2) | |
Text
s' JAN 8 1930 Mr. James T. Wiglesworth, Esq.
Rainey and Wiglesworth Suite 400, General Square Center 9800 Metcalf Overland Park, Kansas 66212
Dear Mr. Wiglesworth:
This is in response to your letter of November 13, 1979 which alleged that there existed "a void in the concrete of the primary reactor wall, the wall closest to the pressure vessel, which was discovered in mid July, 1979."
At the time of the receipt of your letter we had no knowledge of any such void. The description of the location of the void indicates to us that you are referring' to the reactor cavity / primary shield wall region.
During the period of November 28 through Novem'oer 30, 1979 a Region IV inspector was on site and we specifically pursued the quertion of a void in the primary shield wall.
Our inspector searched the noncompliance reports, questioned the qua',ity assurance personnel and then viewed the wall itself.
We could find no record of a void but site personnel recalled a void which was not considered report-able.
The void was a surface area void which had been repaired under the licensee's procedures.
The repaired area consisted of voiding and honeycomb over a distance of 18" on the circumference of the primary shield wall and was 3 to 4" in height and 1" deep. This void did not expose reinforcing steel but existed only in the outer concrete cover.
The steps that were taken by the licensee's contractors have been reviewed and were in conformance with acceptable procedures and specifica-tions.
The type of void or honeycombing in this instance is of no structural concern and occurs occasionally during the course of construction.
The void described here did not require engineering review on the part of the licensee and certainly would not be a void which the NRC would consider reportable under 10 CFR 50.55(e).
The cause of the void was most likely due to inadequate vibration of the plastic concrete.
We appreciate your concern for quality during the construction of the Wolf.
Creek facility and hope that this answers your concern.
If the information you have is not consistent with the description of the surface void please provide additional cetail.
/
$1 W" p
y3cy n d Victor Stello, Jr.
hhh Director Office of Inspection and forcement SEE PREVIOUS YELLOW FOR CONCURRENCES WPU/DLM/SM Office RCI:IE RCI:IE RC E
ELD A:DD:IE 0:IE 1/7/80 Surname Shewmaker Reinmuth Th surg Murray Thompson Stello Job T Date 1/ /80 1/ /80 1/}180 1/ /80 1/' /80 1/ /80
t Mr. James T. Wiglesworth, Esq. JAN 8 1930 Distribution:
H. D. Thornburg, IE G. W. Reinmuth, IE H. R. Denton, NRR D. Vassallo, NRR S. Varga, NRR M. Lictria, NRR K. V. Seyfrit, RIV Central Files POR)1es IE F LPDR SECY OGC bec:
Kansas Gas and Electric Company ATTN:
Mr. G. L. Koster Post Office Box 208 Wihica, Kansas 67201 Mr. Jay Silberg, Esq.
Shaw, Pittman, Potts and Trowbridge 1800 M. Street, N.W.
Washington, D.C.
20036 w y ma
.