05000461/FIN-2008005-02

Finding

Title

Maintenance Rule Scoping Question for Liquid Effluent Process Radiation Monitors

Description

The inspectors reviewed equipment performance issues associated with radiation monitoring system instrumentation and found that Maintenance Rule evaluations were not being performed for liquid effluent process radiation monitor failures. The inspectors noted that liquid effluent process radiation monitors had not been included within the scope of the licensee s Maintenance Rule Monitoring Program and sufficient information or justification was not provided in the licensee s scoping determination documents to support the conclusion that was reached. The inspectors noted that in accordance with 10 CFR 50.65(b)(2)(i), non-safety-related SSCs that are used in plant Emergency Operating Procedures (EOPs) are required to be included in the scope of the licensee s Maintenance Rule Monitoring Program. The inspectors reviewed the plant s EOPs and discovered that the entry condition for EOP-9, Radioactivity Release Control, was any offsite liquid or gaseous release rate above the licensee s Emergency Plan Radiological Effluent Alert level. The inspectors reviewed EP-AA-1003, Exelon Nuclear Radiological Emergency Plan Annex for Clinton Station, Revision 13, and found that one of the three Emergency Action Level threshold values under the Emergency Plan Radiological Effluent Alert level was a valid reading on any effluent monitor > 200 times the high alarm setpoint established by a current radioactivity discharge permit for Y 15 minutes. The inspectors discussed this criterion with two licensed senior reactor operators at the plant (the Shift Operations Superintendent and a Shift Manager) to understand which liquid effluent monitors would be used by operators to evaluate this criterion since no specific monitors were listed in the Emergency Action Level Matrix. The following liquid effluent radiation monitors were identified:  0RIX-PR040 C Liquid Radwaste Discharge Process Radiation Monitor (currently not an active discharge pathway)  1RIX-PR036 C Plant Service Water Effluent Process Radiation Monitor  1RIX-PR037 C Component Cooling Water Process Radiation Monitor  1RIX-PR038 C Division 1 Shutdown Service Water Effluent Process Radiation Monitor  1RIX-PR039 C Division 2 Shutdown Service Water Effluent Process Radiation Monitor  1RIX-PR004 C Train A Fuel Pool Heat Exchanger Service Water Radiation Monitor  1RIX-PR005 C Train B Fuel Pool Heat Exchanger Service Water Radiation Monitor The licensee wrote AR 00854497 to address questions raised by the inspectors regarding scoping of these liquid effluent process radiation monitors within its Maintenance Rule Monitoring Program. This issue is considered to be an Unresolved Item (URI 05000461/2008005-02) pending additional review

02
Site:	Clinton
Report	IR 05000461/2008005 Section 1R12
Date counted	Dec 31, 2008 (2008Q4)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.12
Inspectors (proximate)	R Winter N Valos G Hausman B Kemker M Ring S Mischke D Lords N Feliz-Adomoa Scarbearyb Kemker D Lords J Bozga M Mitchell M Ring S Mischke
INPO aspect
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v • d • e

Finding - Clinton - IR 05000461/2008005

14(0)1(0)2(7)3(1)4(4)5(2)6(0)7(0)201(3)402(0)403(1)20(0)19(0)

IR 05000461/2008005: 1 2

Finding List (Clinton) @ 2008Q4

CCA Matrix: 2008Q4

	Q	CCA	Title
05000461/FIN-2008002-02	2008Q1	H.8	the Licensee Discovered That the Wrong Component Was Installed in the B Turbine Driven Reactor Feed Pump Oil Pressure Sensing Logic
05000461/FIN-2008002-05	2008Q1		Changes to ERO ON-SHIFT and Augmentation Staffing Levels and Position Titles
05000461/FIN-2008002-01	2008Q1	P.1 P.1(a)	Failure to Follow Approved Fire Protection Program Procedures Concerning Control of Transient Combustible Material
05000461/FIN-2008002-06	2008Q1	H.7	Failure to Evaluate Hydraulic Power Unit Piping for Impact with Containment Atmosphere Monitoring Line
05000461/FIN-2008002-07	2008Q1	H.8	Failure to Barricade and Lock a Locked High Radiation Area
05000461/FIN-2008002-04	2008Q1		AS-FOUND Leakage Through Shutdown Service (Sx) Valve 1SX014A
05000461/FIN-2008002-03	2008Q1	H.5	During the Performance of NRC Final Drywell Closeout, the Inspectors Noted That Foreign Material/Housekeeping Sock Had Not Been Removed from the Drywell Floor Drains
05000461/FIN-2008004-02	2008Q3	H.5	Failure to Evaluate an Unexpected and Unknown Cause for Stray Voltage in the End-of-Cycle Recirculation Pump Trip Circuit During Post Modification Testing Resulted in a Reactor Recirculation Pump Trip
05000461/FIN-2008004-04	2008Q3		Failure to Recognize the Safety-Related System Function of the 1B Residual Heat Removal Pump Seal Cooler When Evaluating Past operability of the Pump
05000461/FIN-2008004-03	2008Q3	H.4 H.5	Failure to Perform Adequate Preventative Maintenance on Shutdown Service Water Valve 1SX014A Resulted in Significant Degradation and Gross Seat Leakage
05000461/FIN-2008004-01	2008Q3		Failure to Perform Adequate Post-Maintenance Testing Resulted in High Reactor Vessel Water Level (Level 8) Scram
05000461/FIN-2008403-01	2008Q4	H.7	Security
05000461/FIN-2008005-01	2008Q4	P.1 P.1(a)	Failure to Control Transient Combustible Materials in Accordance with Fire Protection Program
05000461/FIN-2008005-02	2008Q4		Maintenance Rule Scoping Question for Liquid Effluent Process Radiation Monitors
05000461/FIN-2008201-01	2008Q4		Security
05000461/FIN-2008201-02	2008Q4		Security
05000461/FIN-2008201-03	2008Q4		Security

Self-Identified List (Clinton)

	Q	Title
05000461/FIN-2008003-01	2008Q2	Licensee-Identified Violation

[Clinton Findings full list]

05000461/FIN-2008005-02

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