IR 05000010/1981005
| ML19347F846 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/07/1981 |
| From: | Jordan M, Reimann F, Robinson D, Tongue T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19347F845 | List: |
| References | |
| 50-010-81-05, 50-10-81-5, 50-237-81-11, 50-249-81-07, 50-249-81-7, NUDOCS 8105260458 | |
| Download: ML19347F846 (7) | |
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s U. S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENTORCEMENT
REGION III
Reports No. 50-10/81-05; 50-237/81-11; 50-249/81-07 Docket Nos.50-010; 50-237; Licenses No. DPR-02; DPR-19;.
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50-249 DPR-25 Licensce: Commonwealth Edison Company P. O. Box 767
Chicago, IL 60690 Facility Name: Dresden Nuclear Power Station - Units 1, 2, and 3 Inspection At: Dresden Site, Morris, IL Inspection Conducted: February 28, 1981 through April 3, 1981 Inspectors:
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Approved by:
F. W. Reimann, Acting Chief f. f, Reactor Projects Section 1C
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Inspection Summary Inspection on February 28, 1981'through April'3, 1981 (Reports No.
50-10/81-05; 50-237/81-11; 50-249/81-07)
Areas Inspected: Routine, unannounced resident inspection of Operational
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Safety verification, Monthly Maintenance observation, Monthly Surveillance observation, Licensee Event Reports, Startup Testing-Refueling Proceedure Review, Surviellance-Refueling, Maintenance-Refueling, and Inspection during Long Term Shutdown, and Contractor Employee Concerns.
The inspection included a total of 246. inspector-hours onsite by three NRC inspectors, including 50 inspector-hours onsite during of f-shif ts.
Results: Of the ten areas inspected, two items of noncompliance are identified in paragraph 5 personnel overexposure. No other items of noncompliance were identified.
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' DETAILS
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Persons Contacted
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Scott, Strtion Superintendent
- R. Ragan, Operations Assistant Superintendent J. Eenigenburg, Maintenance Assistant Superintendent
- D.' Farrar, Administrative-Services and Supp' ort Assistant
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Superintendent C. Sargent, Unit 1 Operating Engineer J. Wujcign, Unit 2 Operating Engineer M. Wright, Unit 3 Operating Engineer D. Adam, Waste Systems Engineer
G. Myrick, Rad-Chem Supervisor T. Gilman, Rad-Protection Supervisor B. Saunders, Station Security Administrator B. Zank, Training Supervisor
- E. Wilmer, Q. A. Coordinator
- R.
Stobert, Q. A. Engineer The inspector also talked with and interviewed several other licensee employees, including members of the technical and engineering staffs, reactor and auxiliary operators, shift engineers and fecemen, elec-trical, mechanical and instrument personnel, and contract security personnel.
- Denotes those attending one or more exit interviews conducted on
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March 12, 1981, March 27, 1981, and April 3, 1981, 2.
Operational Safety Verification The inspectors observed control room operations, reviewed applicable logs and conducted discussions with control room operators during the period of February 28 through April 3, 1981. The inspectors verified
the operability of selected emergency systems, reviewed tagout records and verified proper return to service of affected components. Tours of
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Unit 3 reactor building and turbine building were conducted tc observe plant equipment conditions, including potential fire. hazards, fluid Icaks, i
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and excessive vibrations and to verify that maintenance requests had been l
initiated for equipment in need of maintenance. The inspectors, by observation and direct interview, verified 'that the physical security plan was being implemented in accordance with the station security plan.
The inspectors observed plant housekeeping / cleanliness conditions and verified implementation of radiation protection controls. During the
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period of February 28 through April 3, 1981, the inspectors walked down
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the accessible portions of the Unit 3 LPCI, Core Spray, SBLC, and the
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Unit 2/3 Diesel Generator systems to verify operability. The inspectors also witnessed portions of the radioactive waste system controls associated with radwaste shipments and barreling.
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These reviews and observations _ were 'conductedj to verifp 'that facility
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Joperations were in conformance with. the requirements established.under technical specifications,10 CFR, 'and administrative l procedures.:
During this report period, pickets _were set up at site access; points by'
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Operating Engineers, Local 150, AFL-CIO, over an employment dispute withe
.a licensee contractor regarding not having operating engineers working'
on;the. site. The licensee security force went into_a " yellow alert" status. ~ The inspector made observations ~ to verify that site security,-
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access to the site, and normal operations were act affected. The dispute was settled and pickets removed after about one week _ of ~ demonstration.E No items' of. noncompliance were identified.
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3.
Monthly Maintenance Observation Station maintenance activities of safety related-systems' and components listed below were ' observed / reviewed to ascertain sthat they were conducted in accordance with approved procedures, regulatory -guides and. industry codes or standards and in conformance with technical specifications.
The following items were considered during this review:.the limiting-conditions for operation were met while _couponents or systems were ' removed from service; approvals were obtained prior to initiating the' work; activities were accomplished using approved' procedures and were inspected-as applicable; functional testing and/or calibrations were performed :
prior to returning components or systems to service; ' quality control-records were maintained; activities were accomplished by qualified per-sonnel; parts and materials used were properly certified; radiological controls ~were implemented; and, fire prevention; controls were implemented.
Work requesta were reviewed to' determine status of outstanding jobs and to assure that priority 'is assigned to safety related equipment mainten'ance which may ffect system performance.
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The following maintenance activities were observed / reviewed:
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Unit 3 Recire Pump and Scoop tube control work.
Unit 3 LPRM Voltage Plateau traces.
Unit 2/3 Diesel Generator.
Unit 2/3 SBGT Moisture removal from the charcoal absorbers.
Following completion of maintenance on the Unit 2/3 Diesel Generator, the inspector verified that this system was returned to service properly.
No items of noncompliance were identified.
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Monthly Surveillance observation The inspectors observed technical specifications required su veillance testing on the Unit 3, Turbinc First Stage 45% SCRAM bypass, and the isolation condenser radiation monitor and verified that testing was performed in accordance with adequate procedures,- that test instrumenta-tion was calibrated, that limiting conditions for operation were met,.
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that removal and restoration of the affected components were accomplished, that test results conformed with technical specifications and procedure requirements and were reviewed by personnel other than the individual directing the test, and that any de;iciencies identified during the ' test-ing were properly reviewed and resolved by appropriate managemeat personnel.
The inspector also witnessed portions of the following test activities:
Unit 3 LPRMS, IRMS, SRMS, SBGT Surveillance Test and Main Steam Line Low Pressure Isolation.
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The inspectors observed an annual communications test of all off-site communication systems available to the station, which was held in con-
, junction with a GSEP - Health Physics drill on March 25, 1981. The GSEP -
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Health Physics portien of the drill was observed by three Region III
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inspectors and will be addressed in a separate inspection report.
The resident inspectors observed that the communication systems tested gave the station the ability to communicate with appropriate on-site and off-site facilities that would be involved in an emergency.
No items of noncompliance were identified.
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Licensee Event ~ Reports Followup Through direct observations, discussions with licensee personnel, and review of records, the following event reports were reviewed to determine that reportability requirements were fulfilled, immediate corrective action was accomplished, and corrective action to prevent recurrence had been accomplished in accordance with technical specifications.
LER's TITLE UNIT 2 80-16 Leak Between LPCI 2-1501-25A Valve and Drain Valve 2-1501-92A 80-24 0xygen Analyzer Failure 80-28 Uncoupling of CRD C-11 UNIT 3 80-02 Failure of MO 3-1501-11B Valve to Operate 80-04 Failure of Jet Pump #13 (B Loop)
80-28 Torus to Rx Building Vaca;an Orcaker 3-1601-20A Inoperative 80-30 3-203-2B C 2D Unit 3 MSIV Closure in Less than 3 reconds.
80-31 West Bank Scram Discharge Piping Found Not Drained 80-32 APRM Ch 3 Failed to Cause a Rod Block 80-33 CCSW Pump Casing Leak on March 5, 1981, the licensee, notified the NRC Senior Resident Inspector (SRI) and IE:HQ via the ENS phone, that an individual working in the Unit 2 reactor vessel received a whole body radiation exposure of approximately 22 rems, which is about seven times the allowable exposure limit. The-4-L
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followup investigation of this event involved approximately 2% man weeks of effort by the SRI in addition to efforts by Regional health physics inspectors and an investigator. The results of the investigation into this item of noncompliance will be' addressed in a separatly hsued investi-gation report. (50-237/81-07). The event created considerable news media interest.
On March 24, 1981, the licensee reported a second incidence involving the exposure of another individual to radiaticn in excess of quarterly dose limits. This apparant noncompliance was reviewed by a regional radiation specialist, and the results will be presented in a separate inspection report. (50-237/81-14).
No other items of noncompliance were identified.
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Startup Testing Refueling Procedt.re Review The inspector reviewed current procedures relating to the Dresden-2 Cycle 8 startup test program scheduled for late April 1981.
The inspector informed the licensee that several of these procedures would require revision prior to their use in April to avert potential procedural noncompliance. The liccasce reviewed said procedures and stated that these procedures will be submittcd for appropriate action. This matter will be reviewed during the next inspection and is open inspection item 50-237/81-11-01.
No items of noncompliance were identified.
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Surveillance - Refueling The inspectors observed the LPRM Insulation resistance and voltage break-down, Jet pump inspection surveillance, Torus snubbers, SBLC injection, Fuel channel dimension, and ARI valva testing on Unit 2 to verify that the tests were cov3 red by properly approved procedures; that the procedures used were cons istant with regulatory requirements, licensec commitments, and administrative controls; that minimum crew requirements were met, test prerequisites were completed, special test equipment was calibrated and in se rvic e, and required data was recorded for final review and analysis; that
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the qualifications of personnel conducting the test were adequate; and that
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the test results were adequate.
No items of noncompliance were identified.
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Maintenance - Refueling The inspector verified maintenance procedures include administrative approvalc for removing and return of systems to service; hold points for inspection / audit and sign-off by QA or other licensee personnel; provisions for operational testing following maintenance; provisions for special authorization and fire watch responsibilities for activities involving welding, open flame, and other ignition sources; reviews of material certi-fications; provisions for assuring LCO requirements were met during repair; provisions for housekeeping during and following maintenance; and responsi-bilities for reporting defects to management.
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The inspector observed the maintenance-activities listed below and
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verified work was accomplished,in accordance with approved procedures
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and by qualified personnel.
UNIT 2
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Jet Pump Hold Down Beam Peplacement Reactor Vessel Hydro-vacuuming of internals Control Rod Replacement Feed Water Sparger Installation
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LPCI Heat Exchanger Tube replacement Head Spray and Support Structure Surveillance Torus Modificaulons:
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Tee Quenchers Installation Downcomer support plate installation Downcomer Bracing supports installation Vent Header Deflector installation Catwalk reinforcement installation Torus Baffle plate removal No items of noncompliance were identified.
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Inspection During Long Term Shutdown The inspector observed control root.perations, reviewed applicable logs and conducted discussions with control room operators during the period '
of February 28 through April 3,1981.
The inspector verified surveillance -
tests required during the shutdown were accomplished, reviewed tagout records, and verified applicability of containment integrity. Tours of Units 1 & 2 accessible areas, including exterior areas were made to make independent assessments of equipment conditions, plant conditions, radiological controls, safety, and adherence to regulatory requirements and to verify that main-tenance requests had been initiated for equipment in need of maintenance.
The inspector observed plant housekeeping / cleanliness conditions, including
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potential fire hazards, and verified implementation of radiation protection controls. The inspector by observation and ' direct interview verified that
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the physical security plan was being implemented in accordance with the '
station security plan. The inspector reviewed the licensee's jumper / bypass controls to verify there w,re no conflicts with technical specifications and verified the implementation of radioactive waste system controls.
No items of noncompliance were identified.
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Contractor Employee Concerns I
A licensee contractor employee requested an opportunity to discuss concerns l
with the Resident Inspectors with reoard to an apparant personal internal uptake of radioactive material.
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individual expressed anxiety about the exposure (an apparant 10% lung burden cf Cobalt-60) as to how it would affect him, his futur; cmployment at nuclear power plants, and why he was
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being recounted so frequently (daily), etc. His concerns appeared to be unfairly expanded ' as a result of familiarity with intense news media cover-age of alleged hazards of radioactivity' associated with nuclear power plants, and humor expressed by some licensee personnel with respect to his situation. The -inspectors reviewed and verified the information related '
to -the radioactive material ingestion with the licensec.
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No items of noncompliance were identified.-
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Headquarters / Regional Requests At the request of Region III, the Resident Inspectors provided a list of inspector identified concerns, noncompliance, etc., that have appeared at Dresden over the past several years as input information for a regional report.
Temporary Instruction, TI 2500/05; TMI~ Action Plan - Tracking IE Verifi-
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cation, was issued as instructions to be followed with the computerized tracking system. -The resident inspectors ' reviewed the computer data supplied with the TI. for ' consistency with licensee committments' and-NUREGS
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0578, 0660, and 0737. This information was returned to the Region III
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office and will be updated as items are added by headquarters or cleared by inspection activities.
12.
Exit Interview The inspector met with licensee representatives (denoted in Paragraph 1)
throughout the month and at the conclusion of the -inspection on April 3, 193* and summarized the scope and findings of the inspection activities.
The licensee acknowledged the findings of the inspection.
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