IR 05000259/1989022
| ML18033A788 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 05/24/1989 |
| From: | Kahle J, Marston R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML18033A787 | List: |
| References | |
| 50-259-89-22, 50-260-89-22, 50-296-89-22, NUDOCS 8906190197 | |
| Download: ML18033A788 (13) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION
REGION II
101 MARIETTASTREET, N.IN.
ATLANTA,GEORGIA 30323 gy 3 4 ~989 Report Hos.:
50-259/89-22, 50-260/89-22, and 50-296/89-22 Licensee:
Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Docket Nos.:
50-259, 50-260 and 50-296 License Nos.:
DPR-33, DPR-52, and DPR-68 Facility Name:
Browns Ferry 1, 2, and
Inspection Conducted:
May 1-5, 1989
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Inspector:
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arston Approved by: Her(
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John B.
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C ief Radiological Effluents and Chemistry Section Emergency Preparedness and Radiological Protection Branch Division of Radiation Safety and Safeguards Date Signed g g/ $7cg Date Signed SUMMARY Scope:
This routine, unannounced inspection was in the areas of radiological effluents.
Results:
No violations or deviations were identified.
The Chemistry organization appeared to have established an aggressive program for maintenance of water quality and protection of coolant boundaries.
Monitoring and filtering equipment was being prepared for, but was not yet completely ready for startup.
The Chemistry Deviation Notice system ensures management attention to out-of-tolerance chemistry conditions.
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REPORT DETAILS Persons Contacted Licensee Employees S. Armstrong, Supervisor, Chemistry Process Control
- R. Baron, Supervisor, Quality Assurance/Quality Surveillance C. Blair, TVA Quality Specialist T. Browns, System Engineer, Containment Purge D. Curths, Nuclear Chemist A. Feltman, QA Evaluator B. Holland, Analytical Chemist E. Howard, Water and Waste Processing Technical Superintendent
- J. Hutton, Operations Superintendent T. Ivy, System Engineer, Standby Gas Treatment S. Jordan, Analytical Chemist P. Kirby, Chemist R. McPherson, System Engineer, Control Room Emergency Ventilation
- J. Olson, Site Support Manager A. Smith, System Engineer Off-Gas Treatment
- D. Smith, Chemistry Superintendent W. Suton, System Engineer, Radiation Monitoring
- J. Wallace, Compliance Engineer S.
Watson, TVA Chemistry Program Manager J. Wilson, Supervisor, Chemical Technical Support Other licensee employees contacted during this inspection included technicians, operators, security force members, and office personnel.
Nuclear Regulatory Commission
- D. Carpenter, Senior Resident Inspector E. Christnot, Resident Inspector
- C. Patterson, Restart Coordinator
- Attended exit interview Audits (84750)
The inspector reviewed NQASE Audit SSA 88901, Radiological Effluent and Environmental Monitoring and Dose Assessment Activities, conducted October 31, 1988 through January 4,
1989.
The report discussed activities at Browns Ferry, Sequoyah, the Western Area Radiation Lab, and the Power Operations Training Center (POTC) near Sequoyah.
The major area evaluated at Browns Ferry was effluent monitoring.
in the area of effluent monitoring, the audit evaluated procedures, monitoring,
. sampling, calibration, analysis, controlling, discharging, reporting, and documenting liquid and gas discharges to unrestricted areas.
The
inspector reviewed the areas of concern noted in the report.
The two areas which had not been corrected on the spot were a failure to proceduralize the monthly dose calculation and a failure to implement Regulatory Guide 4, 15 with regard to a proportional counter voltage plateau determination.
The inspector also reviewed 14 surveillances performed by the plant Quality Assurance (QA)/Quality Surveillance organization during the period from January through April 1989.
The surveillances were primarily in the area of laboratory analysis, with some in the areas of chemical traffic control, standardization and calibration, water quality, equipment/inventory control, QA verification, and radiological effluent monitoring.
No deficiencies were identified in these surveillances.
The inspector reviewed the qualifications of the evaluator conducting the surveillances.
The individual had a combination of formal education, practical experience, and QA training and experience and appeared to be adequately qualified for the job.
No violations or deviations were identified.
Procedures (84750)
The inspector selectively reviewed Surveillance Instructions (SIs),
Technical Instructions (TIs),
and Chemistry Instructions pertinent to areas within the scope of this inspection.
These instructions appeared to be adequate for the tasks they were written to perform.
The inspector also reviewed Plant Manager's Instruction PMI-24.4, Conduct of Chemistry, Revision 2, dated March 1, 1989.
This Instruction described the requirements and responsibilities for the Plant Chemistry program.
No violations or deviations were identified.
Changes to the Program (84750)
The inspector toured the plant, inspecting effluent monitoring instrumentation and radwaste facilities, the radiochemistry count room, and the chemistry laboratory.
Licensee representatives stated that authorized manning had decreased from 76 personnel, including 12 trainees, as of the time of the last inspection ( Inspection Report No. 88-34), to 52 personnel.
The trainee authorization had been transferred to the Training organization.
The actual strength had declined from 57 to 51.
There were seven trainees on the Training roster at the time of this inspection.
New counters and other furniture had been installed in the Chemistry Lab.
Licensee representatives stated that the floors still needed to be resurfaced and the walls painte The inspector examined the portable Corrosion Product Sampling panel, which included six individual samplers.
Each sampler included pressure and flow controls, and had a method to prevent water spilling when the filter holder was opened.
A licensee representative stated that the in-line monitor panel was to be upgraded.
The indicators and recorders which were in use would be covered over and a
CRT monitor and keyboard would be installed.
The new system would have the capability to trend seven points concurrently on the screen.
Licensee representatives stated that a Perkins-Elmer Model 4000 graphite furnace atomic absorption (AA) spectrograph had been installed in the Chemistry Lab, training on the system was complete, and the system was in use.
A model 5000 of the AA spectrograph was available, but would be used after a hood had been built for it.
Two ion chromatographs had been upgraded and gave the Lab the capability for cation analysis.
Cations and anions could be analyzed down to two parts per billion (ppb).
Previous limits were
ppb.
A licensee representative stated that Total Organic Carbon could be analyzed down to 25 ppb; the previous capability was approximately 100 ppb.
No violations or deviations were identified.
Radiological Effluent Monitoring Instrumentation (84750)
The inspector toured the plant, accompanied by a licensee representative, and inspected liquid and gaseous effluent monitoring systems.
The licensee stated that the
CANs used for effluent and air monitoring and the three CANs used for Drywell leak detection will be replaced by new model CAMs by a different manufacturer prior to startup.
The new CAMs were already onsite.
Four CANs were located on the refueling floor of the Reactor Building.
One sampled the gaseous effluent from the Radwaste Building prior to exhaust, and the other three each sampled effluents from its respective unit, consisting of Reactor Building, Turbine Building, and Refueling Zone.
These CAMs were scheduled to be replaced and tested prior to restart.
The Stack Monitor was installed but required maintenance prior to being declared operable.
The high range stack monitor (WRGERM) was installed and had been modified, by required post-modification testing to be declared operable.
The licensee representative estimated that this testing would be completed in August 1989.
The Offgas Post-Treatment System (OGPTS) radiation monitor was out of service for maintenance.
The liquid radwaste radiation monitor was in service and was ready for startu No violations or deviations were identified.
6.
Chemistry and Radiochemistry Instrumentation (84750)
The inspector toured the Count Room and Chemistry Laboratory, examined the instrumentation, discussed the programs with licensee representatives, and reviewed documentation of the calibrations and gC checks of the instruments.
The Count Room was equipped with four gamma spectrographic detector systems, one Tennelec LB 5100 alpha gas proportional counting system, and one Packard Tri Carb liquid scintillation system.
The LB 5100 was a
new system, replacing a recently retired NMC PCC-11T gas proportional system.
The Chemistry Laboratory was equipped with an indicator and recorder panel for on-line analysis, two AA spectrophotometers, and several ion chromatographs.
The inspector reviewed the calibration data, gC checks, and Control Charts for the gamma spectrographic systems.
These tests appeared to have been conducted at required frequencies.
Licensee representatives stated that Detector 83 had been sent to the POTC for calibration.
The inspector reviewed the calibration and gC records for the Chemistry Lab's PE 4000 Graphite Furnace AA Spectrophotometer System, the. Dionex System I Ion Chromatograph, and the TOC Analyzer, System II.
The data covered the period from March 1 through April 30, 1989, and included Control Charts, where applicable.
The instruments appeared to be maintained in calibration for those elements or compounds detected.
No violations or deviations were identified.
7.
Water and Waste Processing (84750)
The inspector discussed the functions and makeup of the Water and Waste Processing Group with a cognizant licensee representative.
The licensee representative stated that the Group was placed under Operations approximately one year ago, and that the authorized strength was 91 personnel and the actual strength was 66.
The Group was divided into three main functional areas:
Decontamination, Waste Processing (liquid),
and Packaging and Shipping (solid).
The liquid radwaste system was set up so that the Floor Drain Collector Tank (FDCT) could be discharged through the Floor Drain Filter to either the Waste Collector Tank (WCT) or the Floor Drain Sample Tanks (FDSTs).
From the FDST, the liquid radwaste could be released to the environment or transferred to the WCT.
The WCT releases through the Waste Filter, the Waste Demineralizer, then to the Waste Sample Tanks (WSTs).
The WSTs could transfer the liquid to a
Condensate Storage Tank (CST) or to the environmen e 8.
9.
The licensee representative stated that the radwaste waste demineralizer had been achieving shorter runs in the past 10 months due to TOC intrusion and resin fines breakthrough.
A layer of charcoal had been added to the waste demineralizer to help filter TOCs.
The existing resin trap in the waste demineralizer was designed for the bead resin used in the waste demi neralizer.
The powdex form of resin, as used in the floor drain filter and the waste filter, passed through the waste demineralizer resin trap to a considerable degree.
The licensee representative stated that a
ceramic filter was planned to filter TOCs from the floor drain liquid waste prior to entering the WCTs, and new resin traps to capture the resin fines were planned to be installed in the waste demineralizer prior to startup.
No violations or deviations were identified.
Liquid Effluent Releases (84750)
The inspector reviewed a selection of liquid effluent release permits and the Radwaste Effluent Factors Log for the period from November 1, 1988 to April 13, 1989.
The releases appeared to have been conducted in accordance with Technical Specifications (TSs).
The inspector reviewed the liquid effluent release dose calculations for March 1989.
The records showed the monthly calculated dose and the quarterly and yearly cumulative doses.
The assumption was made that uptake would be via three pathways:
ingestion, fish ingestion, and recreation.
No violations or deviations were identified.
Gaseous Effluent Releases (84750)
The inspector reviewed the Airborne Effluent Log for the week of April 23-29, 1989.
The Logs showed Reactor Building Exhaust, Turbine Building Exhaust (out of service),
and Stack Monitor (out of service).
The inspector also reviewed the Building Release Log, Plant Release Calculations, and Fan Status Logs.
The inspector reviewed the monthly dose calculation for airborne releases during March 1989.
The monthly record showed the monthly doses, the quarterly cumulative doses and the cumulative dose for the year.
The dose calculations appeared to have been done in accordance with TSs and were well within TS limits.
No violations or deviations were identifie.
Water Chemistry (84750)
The inspector reviewed water chemistry data for the period from April 1 through Hay 3, 1989, and the water chemistry trend charts for the period from July 1, 1988 through April 30, 1989.
The inspector reviewed data for the following:
reactor water, plant makeup water, demineralized water storage tank, WSTs, reactor water cleanup, condensate storage tanks, reactor building closed cooling water, condensate demineralizer influent, condensate demineralizer effluent, fuel pool water, fuel pool demineralizer, torus reactor heat removal, core spray, reactor core isolation cooling, high pressure core injection, reactor feedwater, and control rod drive.
The trend charts were plotted comparing the parameters to administrative limits and action levels.
Licensee representatives stated that a
copper reduction program was implemented during the outage.
The Unit 2 condenser tubes were replaced with stainless steel in the late summer of 1988.
The licensee stated that some copper could possibly still exist in the main steam line "cross around" piping.
Other than that, the only copper that was expected to exist in the cooling system was that plated out in systems piping and other components.
The licensee representative stated that Administrative Limits and Action Levels were changed procedurally on March 20, 1989, to bring the plant levels in line with the new fPRI Guidelines.
The licensee had established the Chemistry Deviation Notice (CDN) system.
This system was used to document and report sample results that exceeded Action Level I, unexpected deviant trends, and out-of-service equipment related to chemistry control.
The CDN made provisions for corrective actions, including that necessary to prevent recurrence of the situation, if applicable.
The CDN also made provisions for notification and acknowledgement through the level of Chemistry Superintendent.
The inspector reviewed open CDNs for all units and closed.
ll. Air Cleaning Systems (84750)
The inspector determined the status of effluent and control room air cleaning systems through discussions with licensee representatives.
a.
Offgas Treatment System.
This system was shut down with the charcoal beds in dry layup.
The licensee representative stated that both Unit 2 and Unit 3 systems would be brought up, with the Unit 3 system serving as a backup to the Unit 2 OGTS.
Both units required a Restart Test to be declared operationa b.
A licensee representative stated that all trays were installed and the system was operational.
c.
Primary Containment Purge.
The licensee representative stated that the system was fully assembled and required filter testing to be declared operational.
d.
Control Room Emergency Ventilation System.
The licensee representative stated that the system fully assembled but technically inoperative due to a requirement for the flow to be set in Train A, and the flow to be set and duct leakage to be repaired in Train B.
No violations or deviations were identified.
12.
Post Accident Sampling System (PASS)
(84750)
The inspector discussed the status of the PASS with licensee representatives.
The licensee representative stated that Unit 2 will start up with the Interim PASS.
It was planned that the permanent PASS would be installed prior to startup of Units 1 and 3 and during the next refueling outage of Unit 2.
The interim PASS operated by taking a coolant sample off the recirculation line and a drywell atmosphere sample off the drywell leak detection CAM line.
Both samples were grab samples.
No violations or deviations were identified.
13.
Reports (84750)
a.
Annual Radiological Environmental Operating Report (1988)
The inspector reviewed the Annual Radiological Environmental Operating Report for 1988.
The report concluded from analysis of the environmental sampling results and from trend plots that the exposure to members of the general public which may have been attributable to the plant was negligible.
The report appeared to have been prepared in accordance with the Radiological Effluent Manual, Section F.1.
b.
Semiannual Radioactive Effluent Release Report The inspector reviewed the subject report and verified that format and content were provided in compliance with the Radiological Effluent Manual, Section F.2.
and NRC Regulatory Guide 1.21,
Revision 1, with the data summarized on a quarterly basis following the format of Appendix B thereof.
The report included a
summary of inoperable radioactive effluent in s trumenta tion.
The following table summarizes the releases for the past three years.
Table 1986
~(ci 1987
~(ci 1988
~ci)
Gaseous Effluents Fission 5 Activation Gases 2.26E+03 3.60E+02 1.44E+2 Iodines and Particulates with hal f-lives 8 days Tritium 2.73E-03 1.37E-01 5.88E-03 2. 93E+00 1. 18E+00 5. 92E-01
Li uid Effluents Fission and Activation Products 5.39E-01 3.25E-01 2.42E-01 Tritium 7.93E+00 2.03E+00
~
1.46E+00 The levels appear to be normal for a plant that was in its third year of shutdown.
Two abnormal releases were experienced on November 11; 1988.
Activity of 8.41E-03 curies was detected in the Raw Cooling Mater.
The details of the releases were still under investigation at the time of the report.
No violations or deviations were identified.
14.
Exit Interview The inspection scope and results were summarized on Nay 5, 1989, with those persons indicated in Paragraph 1,
The inspector described the areas inspected and discussed in detail the inspection findings.
No dissenting comments were received from the licensee.
The inspector reviewed the areas inspected including status of radiation monitoring and liquid and gaseous effluent treatment systems.
The licensee did not identify as proprietary any of the material provided to or reviewed by the inspector during this inspection.