ML19269C190
| ML19269C190 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 11/21/1979 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML19269C191 | List: |
| References | |
| 50-312-78-19, NUDOCS 7901290297 | |
| Download: ML19269C190 (1) | |
Text
'
APPENDIX A Sacramento Municipal Utility District P. O. Box 15830 Sacramento, California 95813 Docket No. 50-312 License No. DPR-54 Notice of Violation Based upon the results of a NRC inspection conducted on October 26-27, and 30, 1978, it appears that certain of your activities were not con-ducted in full compliance with NRC requirements as indicated below.
A.
Title 10 CFR 20.101(b), " Exposure of individuals to radiation in restricted areas," limits exposures to the head, trunk, and the lens of the eyes to 3 rems per caleridar quarter when certain other requirements are satisfied.
Contrary to the above, on October 23, 1978, an individual received a radiation exposure of 3.45 rems of gamma radiation to the head, upper trunk and lens of the eyes during the removal of a pre-filter in the Miscellaneous Liquid Waste System. The radiation dose was detected on a pocket dosimeter, and later verified by the assigned film badge. This exposure, when added to the pre-vious exposures gave a total of 3.70 rems for the calendar quarter.
This is an infraction.
B.
Appendix A, Technical Specification 6.13.1.a, states that any individual or group of individuals permitted to enter a high radiation area shall be provided with a radiation monitoring device which continuously indicates the radiation dose rate in the area.
Contrary to the above, on October 23, 1978, a welder who was working in the cubicle containing the miscellaneous liquid waste filters, which was a high radiation area, was not provided with a radiation monitoring device which would continuously indicate the radiation dose rate in the work area.
This is an infraction.
9 0 t 2 _ct o 3Ji1
Appendix A (Con't.) C.
10 CFR 20.201(b), " Surveys," requires that you make, or cause to be made, such surveys as may be necessary for you to comply with the regulations of Part 20.
As used in the regulations in this part, " survey" means an evaluation of the radiation hazards incident to the production, use, release, disposal or presence of radioactive materials or other sources of radiation under a specific set of conditions.
Contrary to the above, on October 23, 1978, a survey was not made as was necessary to assure compliance with 10 CFR 20.101(b)(1),
in that an employee received a radiation dose in excess of the specified limit.
Specifically, after disconnecting plumbing connection! from the prefilter housing and associated piping, the filter housing and piping unexpectantly rotated and fell against the wall and thereby substantially changed working conditions from those evaluated in a pre-job briefing.
In addition, the prefilter housing was unexpectantly found to be filled with water. Despite these changes in working conditions, a re-evaluation of the radiation hazards incident to the job was not performed.
This is an infraction.