IR 05000327/1993008
| ML20035B491 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/12/1993 |
| From: | Decker T, David Jones NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20035B487 | List: |
| References | |
| 50-327-93-08, 50-327-93-8, 50-328-93-08, 50-328-93-8, NUDOCS 9304020058 | |
| Download: ML20035B491 (7) | |
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NUCLEAR REGULATORY COMMISslON g
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5%EGION ll ~
-S (), oE 101 MARIETTA STREET, N.W.
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g' ' 'f AT LANTA, GEORGI A 30323
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,121993
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. Report Nos.:
50-327/93-08 and 50-328/93-08 i
t Licensee: Tennessee Valley Authority 6N 38A Lookout Place
1101 Market Street Chattanooga, TN 37402-2801
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Preparedness Branch Division of Radiation Safety and Safeguards
SUMMARY
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Scope:
This routine, announced inspection was conducted in the areas of process and effluent radiation monitoring instrumentation and meteorological monitoring.
J Results:
No violations or deviations were identified.
The licensee had effectively implemented a program for process and effluent radiation monitoring instrumentation surveillances and had initiated a project for improving the reliability of those instruments (Paragraph 2).
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The licensee had implemented an effective program for maintaining the
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meteorological monitoring instrumentation in an operable status. Copies of vendor procedures for calibrating wind speed and air temperature sensors will i
be obtained for review during a subsequent inspection (Paragraph 3).
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9304020058 930312 i
ADOCK0500p37 PDR G
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REPORT DETAILS
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1.
Persons Contacted Licensee Employees D. Amos, Nuclear Chemist, Chemistry t*R. Fenech, Site Vice President
- T. Flippo, Manager, Site Quality tJ. Hamilton, Manager, Quality Audit and Assessment J. Hereford, Engineer, Maintenance
- W. Jocher, Manager, Chemistry 1*C. Kent, Manager, Radiological Control
- D. Love, Manager, Planning and Technical, Maintenance D. Pittman, Meteorologist, Resources Branch Operations t*R. Froffitt, Engineer, Compliance Licensing
- R. Richie, Manager, Chemistry Control t*R. Thompson, Manager, Compliance Licensing
- J. Ward, Manager, Engineering and Modifications Other licensee employees contacted included engineers, technicians, and administrative pe sonnel.
Nuclear Regulatory Commission 1*W. Holland, Senior Resident Inspector
- S. Shaeffer, Resident Inspector 1 Attended entrance interview.
- Attended exit interview.
2.
Process and Effluent Radiation Monitoring Instrumentation (84750)
Technical Specifications (TSs) 3/4.3.3 for both Units and Section 1/2.1 of the Offsite Dose Calculation Manual (0DCM) described the operational and surveillance requirements for the radiation monitoring instrumentation associated with plant operations and radioactive effluy6ts. The instrumentation was required to be operable during specified operational modes and demonstrated to be operable by the performance of channel checks, source / sensor checks, channel calibrations, and channel functional tests at specified frequencies.
The inspector toured the control room and relevant areas of the facility with a licensee representative to locate and determine the operational status of the following 16 radiation monitors.
0-RM-90-122 Liquid Radwast, Effluent Line 1&2-RM-90-120&l22 Steam Generator Blowdown Effluent Line 0-RM-90-Il8 Waste Gas Disposal System 1&2-RM-90-99&l19 Condenser Vacuum Exhaust 1&2-RE-90-400 Shield Building Exhaust 1&2-RM-90-130&l31 Containment Purge Air Exhaust
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The instrumentation for the above radiation monitors was found to be~
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operable at the time of the tour.
j The inspector reviewed the procedures listed below which related to
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channel checks, source / sensor checks, channel calibrations, and channel-
functional tests for the above listed monitors.
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l-SI-0PS-000-002.0 Rev. 11
" Shift Log"
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2-SI-0PS-000-002.0 Rev. 10 " Shift Log"
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l-SI-0PS-000-003.D -Rev.
7 " Daily Shift Log"
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2-SI-0PS-000-003.D Rev. 7 " Daily Shift Log" l-SI-0PS-000-003.M Rev.
5 " Monthly Shift Log" l
2-SI-0PS-000-003.M Rev. 5 " Monthly Shift Log"
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l-SI-ICC-090-130.A Rev. O " Channel Calibration of Containment Purge j
Air Exhaust Radiation Monitor (Train A).
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l-R-90-130" I
l-SI-ICC-090-131.8 Rev. O " Channel Calibration of Containment Purge.
s Air Exhaust Radiation Monitor (Train B)
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j 1-R-90-131" 0-SI-ICC-090-122.0 Rev. 3 " Channel Calibration of Waste Dis; al
System Liquid Effluent Radiation Monitor 0-R-90-122" i
1-SI-ICC-090-120.0 Rev.
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" Channel Calibration of Steam Generator l
Blowdawn Liquid Sample Radiation Monitor
1-R-90-120"
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l-S1-100-090-121.0 Rev.
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" Channel Calibration of Steam Generator l
Blowdown Liquid Sample Radiation Monitor
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1-R-90-121" l
0-SI-CEM-077-410.4 Rev. 0 " Waste Gas Decay Tank Release" 0-PI-ICC-090-118.0 Rev.
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" Channel Calibration of Waste Disposal
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Systeni Gas Effluent Radiation Monitor i
0-R-90-118" i
1-S1-100-090-099 0 Rev.
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" Channel Calibration of Condenser Vacuum
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Pump High Range Air Exhaust Radiation Monitor 1-R-90-99" i
1-S1-100-090-119.0 Rev.
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" Channel Calibration of Condenser Vacuum
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Pump Air Exhaust Radiation Monitor
l-R-90-119" l
1-PI-lCC-090-400.0 Rev.
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" Calibration of shield Bldg Vent Radiation
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Monitor 1-RM-90-400"
2-PI-ICC-090-400.0 Rev.
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" Calibration of shield Bldg Vent-Radiation l
Monitor 2-RM-90-400"
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l-PI-IFT-090 400.0 Rev. 4 " Functional Test of Shield Building Vent i
Radiation Monitor 1-R-90-409"
2-PI-IFT-090-400.0 Rev. 4 " Functional Test of Shield Building Vent
Radiation Monitor 2-R-90-400"
SI-83.2.130 Rev. 0 " Channel Calibration of Containment Purge.
j Air Exhaust Monitor (Train A) 2-R-90-130" SI-83.2.131 Rev. O " Channel Calibration of Containment Purge
Air Exhaust Monitor (Train _B) 2-R-90-131"
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- SI-205.2.99 Rev.-
" Channel Calibration of Condenser Vacuum Pump High Range Air' Exhaust Monitor 2-R-90-99"
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SI-205.2.119 Rev..1
" Channel Calibration of Condenser Vacuum Pump High Range Air F>haust Monitor 2-R-90-119" SI-205.2.120 Rev.
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" Channel Calibration of Steam Generator Blowdown Liquid Sample Monitor 2-R-90-120" SI-205.2.121 Rev.
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" Channel Calibration of Steam Generator Blowdown Liquid Sample Monitor 2-R-90-121" a
SI-281 Rev. 18 " Functional Tests of Radiation EfflJent
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Monitors With' Automatic Actuations"
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SI-281.2 Rev. 10 " Functional Tests of Radiation' Effluent
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Monitors With Automatic Actuations" l
S1-204 Rev. 22 " Functional Test for Radiation Monitoring
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System (Monthly)"
SI-204.2 Rev. 11
" Functional Test for Radiation Monitoring -
System (Monthly)"
SI-400.1 Rev. 21
" Liquid Waste. Effluent Batch Release"
The inspector determined that the above proceduros included provisions -
tor performing the required surveillances in accordance with the j
relevant sections of the ODCM and TSs. The inspector also reviewed
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selected licensee records.of channel checks, source / sensor checks,
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channel calibrations, and channel functional tests for each' of the above
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listed monitors. The racords selected for review were generally the i
three most recent surveillances performed. Those records indicated that-j
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the surveillances had been performed-in accordance with their applicable procedure and at the required frequency.
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The licensee informed the inspector of a recent initiative for improving-
the availability of radiation monitors. Whenever a monitor becomes i
inoperable, the licensee is required to take compensatory measures until
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the monitor is repaired and returned to an operable condition. Those compensatory measures may include suspension of an effluent release or sampling and analysis of the effluents at prescribed frequencies. The objective of the project was to increase the reliability of. the monitors i
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in order to reduce maintenance and extra sampling and analysis. An
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action plan had been developed with task assignments to the Radiological
.l Controls, Chemistry, Fogineering, Maintenance, and Corporate
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organizations. Specific goals and tasks included: reducing' the backlog
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of maintenance work, eliminating unnecessary monitors, replacement of.
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some monitors, corporate-wide standardization of future radiation monitoring system upgrades, evaluating the effectiveness of related training programs, evaluating the effectiveness of maintenance work, evaluating the effectiveness of the distribution of the work assignments
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related to' radiation monitors, evaluate the adequacy of calibration
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procedures, determine the frequency and cause of monitor failures, and
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conducting an industry survey on radiation monitor maintenance and
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planned upgrades. The licensee also indicated that a system for
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routinely documenting.the percent avaiiability of individual radiation monitors may be developed. The inspector indicated that the licensee's progress in these initiatives will be reviewed during subsequent inspections.
Based on the above reviews and observations', it was: concluded-that the-licensee had effectively implemented a program for process and effluent radiation monitoring instrumentation surveillances and had initiated a-project for improving.the reliability of those instruments.
No violations or deviations were identified.
3.
Meteorological Monitcring Program (84750)
TSs 3/4.3.3.4 for both Units described the operational and surveillance requirements for the meteorological monitoring instrumentation.
Instrumentation for wind speed, wind direction and vertical air
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temperature differences was required to be operable at all times and demonstrated to be operable by the performance of daily channel checks j
and semiannual channel calibrations. An Action Statement specified that
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when one or more of the monitoring channels is inoperable for more than 7 days, a Special Report would be submitted to the NRC within 10 days outlining the cause of the malfunction and the plans for restoring the.
instrumentation to operable statu's.
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The inspector reviewed procedure 2-SI-0PS-000-003.0, Rev. 7 " Daily Shift-l Log" and determined that it included provisions for performing the
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required daily channel checks of the meteorological monitoring
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instrumentation. The Daily Shift Log records for February-22, 23, and.
24, 1993, indicated that the surveillances had been performed on those
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days. During a tour of the control room the inspector observed that the-
required instrumentation was then operable.
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The inspector toured the meteorological monitoring station and discussed
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its operation with the licensee. The licensee indicated that the sensor
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components of the instrumentation, located on the station tower, were
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routinely exchanged 3t six month intervals The removed sensors were
then calibrated prior to being returned to service during subsequent l
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sensor exchanges. The wind direction sensors were calibrated onsite but the wind speed and air temoerature sensors were calibrated by an offsite'
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vendor. The inspector reviewed procedure DS-61.21, Rev. O " Calibration of Wind Direction Sensor Climet Model 012-Nuclear" and determined that it included provisions for performing the required surveillance at the
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required frequency. The licensee indicated that copies of the procedures i
used by their vendor for calibt ation of the wind speed and~ air l
temperature sensors were not currently maintained at the site but copies j
of tse procedures could be promptly obtained. The inspector. indicated
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that those procedures and records of calibrations would be examined during a subsequent inspection.
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.The. licensee also provided the inspector with' quarterly summaries of the l
meteorological monitoring instrumentation's percent availability for the
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year 1992, Those data indicated that the instruments were typically i
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operable more than 95 percent of the time.
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Based on the above reviews and observations, it was concluded that the
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licensee had implemented an effective program for maintaining the-
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meteorological monitoring instrumentation in an operable status.
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i No violations or deviations were identified.
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4.
Exit Interview
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The inspection scope and results were summarized on February. 26, 1993,.
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with those persons indicated in Paragraph 1. The inspector described the
areas inspected and discussed in detail the inspection results listed q
above. No dissenting comments were received from the licensee
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Proprietary information is not contained in this report.
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Tennessee. Valley Authority
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(cc w/ encl:
cont'd)
County Judge Hamilton County Courthouse Chattanooga, TN 37402 Michael H. Mobley, Director Division of Radiological Health 3rd Floor,-L and C Annex 401 Church Street Nashville,LTN 37243-1532 bcc w/ enc 1:
E. W. Merschoff, RII J. R. Johnson, RII P. J. Kellogg, RII S. J. Vias, RII S. Sparks, RII B. M. Bordenick, OGC D. E. LaBarge, NRR G. Lainas, NRR F. Hebdon, NRR Document Control Desk NRC Resident Inspector U.S. Nuclear Regulatory Commission 2600 Igou Ferry Soddy-Daisy, TN 37379 SEE CONCURRENCE NEXT PAGE RII:DRSS RII:DRSS RII:DRP
- DJones
- TRDecker
- PKellogg
/ /93
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