05000255/FIN-2010004-06

Finding

Title

Use of TLDs May Not Be Consistent With the Methods Used by the NVLAP Accreditation Process

Description

The inspectors identified that the licensees use of dosimeters (TLDs) may not be consistent with the methods used by the NVLAP accreditation process. As a result, the inspectors identified an Unresolved Item (URI) for the apparent non-compliance with 10 CFR 20.1501(c)(2) because the accreditation process for the types of radiation included in the NVLAP program may not approximate the types of radiations for which the individual wearing the dosimeter is monitored. The licensee uses a vendor to supply and process dosimeters used to measure radiation exposure for the monitored workers. This vendor is NVLAP accredited for beta, gamma, neutron, mixture of beta/gamma, and mixture neutron/gamma radiations. However, the licensee uses the dosimeters when workers may be exposed to beta, gamma, and neutron radiations within the same monitoring period. The inspectors determined that this mixture of three radiation types may not be aligned with the accreditation process. The licensee concluded that since the processor was accredited for all three types of radiation, the dosimeter could be used when all three types are encountered during the same monitoring period. During the inspection, the licensee contacted the dosimeter processor for clarification. The licensee indicated that the dosimeter processor makes some assumptions of the types of radiation that the worker was exposed to and selects an appropriate algorithm for processing the dosimeter. These assumptions consider whether the reactor is creating power, therefore creating neutron radiation. The inspectors agreed that workers are not generally exposed to neutron radiation during periods when the reactor is not creating power. However, the licensees program does not require a dosimeter change when the reactor is shut down for maintenance or when the reactor is returned to power. This created a condition where the same dosimeter could be used in a manner that is not consistent with the methods described by the dosimeter processor. The issue remains under review by the NRC pending completion of the licensee\\\'s testing and evaluation of dosimeters exposed to all three types of radiation. The issue is categorized as a URI pending completion of that revised evaluation and the NRCs review of it (URI 05000255/2010004-06 Use of TLDs May Not Be Consistent With the Methods Used by the NVLAP Accreditation Process).

06
Site:	Palisades
Report	IR 05000255/2010004 Section 2RS4
Date counted	Sep 30, 2010 (2010Q3)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71124.04
Inspectors (proximate)	J Cassidy J Ellegood J Giessner T Taylorc Zoias Sheldon M Phalen J Lennartz K Walton M Jones T Taylor A Scarbeary E Sanchez-Santiago D Alley
INPO aspect
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v • d • e

Finding - Palisades - IR 05000255/2010004

2(4)3(0)4(9)5(8)6(0)7(0)8(0)9(1)10(2)201(0)301(0)403(2)404(1)405(0)406(0)501(0)502(1)

IR 05000255/2010004: 1 2 3 4 5 6 7 8 9

Finding List (Palisades) @ 2010Q3

CCA Matrix: 2010Q3

	Q	CCA	Title
05000255/FIN-2009006-02	2009Q4	P.2	Failure to Translate the Design Basis for the CV-11 Control Room HVAC Chiller Into Specifications and Drawings
05000255/FIN-2009005-02	2009Q4		Adequacy of evaluation of interface with state and local governments
05000255/FIN-2009005-01	2009Q4		NOED for repair to service water pump P-7C
05000255/FIN-2009006-01	2009Q4	P.5	Agastat Time Delay Relays Design, Testing and Configuration Control Issues
05000255/FIN-2009005-03	2009Q4		Adequacy of building lightning protection
05000255/FIN-2009008-01	2009Q4		Loss of Spent Fuel Pool Neutron Absorption Capability
05000255/FIN-2010502-01	2010Q1	P.6	Inadequate Evaluation of Interface with State and Local Governments
05000255/FIN-2010002-03	2010Q1		Failure to Adequately Manage Changes to the ODCM
05000255/FIN-2010002-01	2010Q1		Inadequate Fire Barrier
05000255/FIN-2010002-02	2010Q1	H.5	Improper Construction of Scaffolding
05000255/FIN-2010004-04	2010Q3	H.7	Failure to Ensure Code Requirements Met When Performing VT-2 Exams
05000255/FIN-2010403-02	2010Q3		Security
05000255/FIN-2010403-01	2010Q3		Security
05000255/FIN-2010404-01	2010Q3		Security
05000255/FIN-2010004-05	2010Q3	H.12	Ground on Preferred AC Bus due to Improperly Installed Electrical Bushing
05000255/FIN-2010004-02	2010Q3	H.14	Failure to Complete Actions Required by LCO 3.0.3 and 3.3.1
05000255/FIN-2010004-01	2010Q3	H.7	Failure to Perform an Adequate Risk Assessment for Maintenance Activities
05000255/FIN-2010004-07	2010Q3		Description of Liquid Waste Incidents
05000255/FIN-2010004-06	2010Q3		Use of TLDs May Not Be Consistent With the Methods Used by the NVLAP Accreditation Process
05000255/FIN-2010004-03	2010Q3		Failure to Make 8 hour Report Pursuant to 10 CFR 50.72
05000255/FIN-2010009-01	2010Q3	P.2	Corrective Action to Prevent Recurrence Failed to Address Root Causes

Self-Identified List (Palisades)

	Q	Title
05000255/FIN-2010002-04	2010Q1	Licensee-Identified Violation
05000255/FIN-2010004-08	2010Q3	Licensee-Identified Violation
05000255/FIN-2010004-09	2010Q3	Licensee-Identified Violation

[Palisades Findings full list]

05000255/FIN-2010004-06

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