ML20083A292
| ML20083A292 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 04/27/1995 |
| From: | Rehn D DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9505100148 | |
| Download: ML20083A292 (4) | |
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D Nuclear _ Regulatory Commission i
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Subject:
Catawba N.uclear Station Dockets 50-413 and 50-414 i
Reply to Notice of Violation
.j Inspection Report 50-413,414/95-05 i
Attached is Duke Power Company's response to the one (1) Level IV violation' cited in-Inspection Report 50-413, 414/95-05, dated. March.31, 1995. This ^
j violation was identified. during a routine: radiation protection inspection-conducted by Fred Wright.--
lg if them are any1 questions concerning this response, please contact Kay, q
- Nicholson at (803) 831-3237.1 l
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- i Sincerely i
D. L Rehn
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S. D. Ebneter, Regional Administrator R. E. Martin, ONRR
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R.-J. Fmudenberger, SRI
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- C CATAWBA NUCLEAR STATION
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- REPLY TO NOTICE OF VIOLATION 50413,41495-05-02 j
Notice of Violation 10 CFR Part 20.1501(a) states each licensee shall snake or cause to be inade surveys that nsay be newssary for the licensee to cornply toith the regulations in this part are reasonable under the circurnslanws to evaluate the extent of radiation lettis,.
concentrations or quantities of radioactive analerial and the potential radiological hazards that could le present.
10 CFR Part 20.1003 depnes a radiation area as an area, accessible to individuals, in which radiation letwls could result in an individual rewiving a dose equivalent in excess of 0.005 rein in one hour at 30 centimeters pons the radiation source or frorn any surface that the radiation Jenetrales.
10 CFR Part 20.1902 ' states the licensee shall post each radiation area with a.
Y wnspicuous sign or signs bearing the radiation syrnici and the nords " Caution Radiation Area."
r Contrary to the alvie, on February 28,1995. the licenseefailed to snake radiological curitys necessary to detect and post a radiation area in acmrdanw with the posting requirernents of10 CR 20.1902, in that, an area accessible to an individual on the 594 foot elevation of the licensee's Auxiliary Building and itaving a dose eqs.ivalent of 0.020 rern in one hout at 30 wntinietersfront afuel,ao! cooling line was identifed which was not posted as a radiation area.
This is a Seierity Letel IV Violation (Supplernent 1).
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CATAWBA NUCLEAR STATION REPLY TO NOTICE OF VIOLATION 50-413,414/95-05-02 i
1.
Reason for Violation The'594 foot' elevation is posted by individual areas due to the small number of radiation areas rather than posting the entire elevation. All j
other elevations are posted as Radiation Areas due to the number or configuration of areas meeting the requirement for posting.
j Surveys and posted areas are documented in routine surveys performed by Radiation Protection. The area in question was surveyed on February 18,1995, and found not to meet the requirement for posting. During recent refueling outage (1EOCd), unexpected crudburst conditions elevated plant dose rates significantly higher than normal due to activity j
carried in primary coolant systems. Upon entering the refueling mode, this activity transferred to refueling systems. With the exception of the 594 foot elevation, these systems were properly monitored and posted as
.l noted in paragraph 5.d. of the inspection report details.
The root cause for this violation is attributed to inadequate procedure for surveying plant areas under changing conditions.
2.
Corrective Actions Taken and Results Achieved The 594 foot elevation was immediately surveyed by Radiation Protection. The inspector identified area and one licensee identified area (Spent Fuel Cooling system in the same vicinity) were psted to comply with regulations.
In addition, other changes in plant configuration that could potentially affect radiation levels were evaluated for possible revision to radiation protection ro itine survey procedures. This evaiuation determined that no changes are required. Step 5.1.2.3, in Radiation Protection Manual Directive III-2, states that if any area shows unexpected changes in radiation levels since the last routine survey was performed, to attempt to determine the cause and notify Radiation Protection supervision.
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CATAWBA NUCLEAR STATION REPLY TO NOTICE OF VIOLATION 5M13,41495-05 02 3.
Corrective Actions to be Taken to Avoid Future Violations E
. Procedure HP/0/B/1000/43, Radiation Protection Control of Work in Upper Containment, shall be revised to require surveys on the 594 foot elevation in and around the area of the spent fuel pool cooling piping upon commencement of refuel activities. This revision shall be complete -
,I by September 1,1995. This is prior to our next scheduled refueling.
outage in October,1995.
4.
Date of Full Compliance Duke Power Company is now in full compliance.
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