ML13308B431
| ML13308B431 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 08/09/1978 |
| From: | Head J SOUTHERN CALIFORNIA EDISON CO. |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-78-08, IEB-78-8, NUDOCS 8102190132 | |
| Download: ML13308B431 (2) | |
Text
4 Southern California Edison Company O.
- 0. BOX 800 2244 WALNUT GROVE AVENUE J. T. HEAD, JR.
ROSEMEAD, CALIFORN1A 91770 TELEPHONE VICE PRESIDENT 213-572-1472 August 9, 1978 U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region V Suite 202, Walnut Creek Plaza 1990 North California Boulevard Walnut Creek, California 94596 Attention: Mr. R. H. Engelken Docket No 50-20 San Onofre 1
Dear Sir:
IE Bulletin No. 78-08 Radiation Levels from Fuel Element Transfer Tubes Reference is made to your correspondence of June 19, 1978, forwarding the subject IE Bulletin.
Discussed therein was an incident involving the over exposure of two radiation protection technicians at the Trojan Nuclear Plant during a radiation survey adjacent to an exposed section of the fuel element transfer tube.
In response to the action items delineated in the subject Bulletin, the following information is provided.
Item:
"1. Perform a thorough review of shielding design of plant areas adjacent to the fuel transfer tube to identify potential high radiation areas, both continuous and transient, as defined in 10 CFR 20.202(b)."
Response
A thorough review of the shielding adjacent to the fuel transfer tube has confirmed the absence of any potential continuous or transient high radiation areas.
I Bulletin No.
78-08 August 9, 1978 Page Two (2)
Item:
"2. Assure that positive control of access exists or is included in the facility design for entryways into potential high radiation areas where a portion of a fuel transfer tube is accessible in an unshielded condition."
Response
There are no entryways into areas where a portion of the fuel transfer tube is accessible in an unshielded condition.
Item:
"3.
Assure that points of access to potential high radiation areas asso ciated with accessible unshielded portions of a fuel transfer tube are conspicuously posted in accordance with 10 CFR 20.203(c)."
Response
No such areas exist.
Item:
"4. If the action for Paragraph 1 above identifies the potential for radia tion streaming from shielded spaces, plan and conduct special radiation surveys during the next refueling to identify and control such areas.
It is not necessary to survey in areas where the transfer tube is exposed, but if it is found desirable, extreme care should be exercised to control and limit personnel exposure.
Care should be taken in planning surveys and fuel movements such that survey requirements do not override any technical limitations on fuel movement."
Response
There are no areas which have the potential for radiation streaming from shielded spaces adjacent to the fuel transfer tube.
Should you have any further questions, please contact me.
Sincerely,