IR 05000263/1998003
| ML20217E192 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/21/1998 |
| From: | Grobe J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Wadley M NORTHERN STATES POWER CO. |
| References | |
| 50-263-98-03, 50-263-98-3, NUDOCS 9804270228 | |
| Download: ML20217E192 (2) | |
Text
April 21, 1998
SUBJECT:
NOTICE OF VIOLATION (NRC INSPECTION REPORT 50-263/98003(DRS))
Dear Mr. Wadley:
This will acknowledge receipt of Mr. Hammer's letter dated April 1,1998, in response to our letter dated March 6,1998, transmitting a Notice of Violation associated with a personnel resin contamination event during a gauge calibration at Monticello. The plant's corrective l
actions were reviewed by my staff during a recent radiation protection inspection (inspection Report 50-263/98008(DRS)) at your facility and were found to be adequate. We have no i
further questions regarding this matter at this time.
Sincerely,
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original signed by J. A. Grobe
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John A. Grobe, Director Division of Reactor Safety Docket No. 50-263 License No. DPR-22 Enclosure:
Lir did 4/1/98 Michael F. Hammer Northern States Power Company to US NRC cc w/o encl:
Plant Manager, Monticello cc w/ encl:
State Liaison Officer, State
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of Minnesota I b.b.s I l
s DOCUMENT NAME:G:DRS\\ MON 04318.DRS To receive a copy of thee document, Indicate in the bor "C* = Copy w/o att/enci"E' = Copy w/att/end "N" s No copy OFFICE Rlli E
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NAME WWest:JgMy GShear 6 65 JMcCormiclMaiger JGr$P DATE 04/I7/98
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04//3/98 04/,f98 04 4/h8 9804270228 980421
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CAC (E-Mail)
Project Mgr., NRR w/ encl A. Beach w/enci J. Caldwell w/enci
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B. Clayton w/ encl SRI Monticello w/enci DRP w/enci TSS w/enci DRS w/ encl l
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Docket File w/o enci
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GREENS LEO (E-Mail)
DOCDESK (E-Mail)
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Northern states Power Company
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Monticello Nuclear Generating Plant
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2807 West County Road 75
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Monticello, MN 55362 April 1,1998 10 CFR Part 2 Section 2.201
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US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Reply to Notice of Violation Contained in
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NRC Inspection Report No. 50-263/98003 Pursuant to the provisions of 10 CFR Part 2, Section 2.201, our reply to the notice of violation contained in your letter of March 6,1998, is provided in Attachment A.
This letter does not contain any new commitments to the NRC, not does it modify any existing NP,C commitments. Please contact Marcus Voth, Project Manager - Licensing, (612)-271-5116 if you require further information.
144tb V Michael F. Hammer Plant Manager Monticello Nuclear Generating Plant
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Regional Administrator-lil, NRC NRR Project Manager, NRC Sr Resident inspector, NRC State of Minnesota Attn: Kris Sanda J Silberg Attachments A - Reply to Notice of Violation
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REPLY TO NOTICE OF VIOLATION Attachment A
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Pzge 1
April 1,1998
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Violation:
During an NRC inspection conducted on February 9 - 13,1998, a vlolation of NRC requirements was identified. In accordance with the " General Statement of Policy and Procedure for NRC Enforcement Actions," NUREG-1600, the violation is listed below:
10 CFR 20.1501 requires that each licensee make or cause to be made surveys that may be necessary for the licensee to comply with the regulations in Part 20 and that are reasonable under the circumstances to evaluate the extent of radiation levels, concentrations or quantities of radioactive materials, and the j
potential radiological hazards that could be present.
j Pursuant to 10 CFR 20.1003, survey means an evaluation of the radiological
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conditions and potential hazards incident to the production, use, transfer,
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release, disposal, or presence of radioactive material or other sources of radiation.
Contrary to the above:
On October 28,1997, the licensee did not make surveys to assure compliance with 10 CFR 20.1201 (a), which limits occupational radiation exposure. Specifically, the licensee did not adequately evaluate the radiologicalharords associated with an instrument calibration on an instrument line connected to the radwaste resin transfer system. As a result, a plant employee performing an instrument calibration was contaminated by radioactive resin which was present in the line.
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Violation Response NSP Response to Violation NSP acknowledges the above Notice of Violation.
Reason For Violation:
An l&C (instrument and control) Specialist and the immediate work area were contaminated when an inadequate isolation caused pressure to build in an instrument line and eject a plug of radioactive resin and water.
The I&C Specialist was performing routine preventive maintenance on a condensate service line pressure gauge connected to the solid radwaste system. After attempting
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REPLY TO NOTICE OF VIOLATION Attachment A
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Pega 2
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April 1,1998 to isolate the instrument line, and mistakenly concluding that he was successful, he proceeded to remove the pressure gauge. When the gauge was removed, the resin plug and a quantity of water sprayed out of the line and contaminated the area.
The I&C Specialist, in requesting the RWP, was not familiar with the history of the instrument and did not expect that there would be resin in the line. Based on the discussion with the I&C Specialist, the RP Coordinator (RPC) assigned the job to a general radiation work permit and, in accordance with procedures, did not require a
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radiological survey. As a result, the radiation work permit for the work did not require
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protective clothing.
Corrective Action Taken and Results Achieved:
The procedure for processing resin to the dewatering system was revised to include a flush of the deadleg section of instrument line at the conclusion of each resin processing campaign. This action will prevent the accumulation of resin in the line and eliminate the possibility of this event recurring.
A valve and calibration tee were installed to allow calibration of the pressure gauge i
without removing the gauge.
The event was reviewed with Radiation Protection and Instrument Maintenance personnel. The importance of maintaining a questioning attitude while assessing the potential for radiological hazards of an activity was communicated.
The event was reviewed in the course of advanced radiation worker training provided to job supervisors. The importance of understanding the radiological nature of systems when assigning radiation work permits to work orders and procedures was emphasized.
Corrective Action to be Taken to Avoid Further Violations:
No further corrective action is required.
Date When Full Compliance Will Be Achieved Full compliance has been achieved.