IR 05000266/1980017
| ML19340E782 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 12/04/1980 |
| From: | Guldemond W, Hague R, Warnick R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19340E781 | List: |
| References | |
| 50-266-80-17, 50-301-80-17, NUDOCS 8101150651 | |
| Download: ML19340E782 (6) | |
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O U.S. NUCLEAR REGULATORY COMMISSION g
OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report Nos.
50-266/80-17; 50-301/80-17 Docket Nos.
50-266; 50-301 License No. DPR-24; DPR-27 Licensee: Wisconsin Electric Power Company 231 West Michigan Avenue Milwaukee, WI 53201 Facility Name: Point Beach Nuclear Power Plant, Units 1 and 2 Inspection At: Point Beach Site, Two Creeks, WI Inspection Conducted: October 1-3,'6-10, 14-17, 20-24, and 27-31, 1980 Inspectors:
RR0 W W. G. Guldemond Bn 4 f /M r
j RFW W R. L. Hague Be c 9, / 9/h RFldauh Approved By:
R. F. Warnick, Chief
/Mr4//980
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Projects Section 3
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Inspection Summary Inspection on October 1-3, 6-10, 14-17, 20-24, and 27-31, 1980 (Report Nos.
50-266/80-17; 50-301/80-17)
Areas Inspected:
Routine resident inspection'of operational safety verifi-cation, monthly maintenance observation, monthly surveillance observation, followup on licensee event reports, IE Bulletin and IE Circular followup, and review of plant operations. The inspection involved a' total of 154
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inspector-hours onsite by two NRC resident inspectors including 39. inspector-hours during offshifts. The inspection also involved 32 inspector-heurs on site by regional supervisory personnel.
.Results: No items of noncompliance or deviations were identified.
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DETAILS i
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1.
Persons Contacted i
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- G. A. Reed, Manager, Nuclear Power Division j
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E. Link, Assistant to the Manager l
T. J. Koehler, Operations Superintendent
J. C. Reisenbucchler, I&C Engineer
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R. R. Weedon, Health Physicist J. J. Zach, Superintendent Technical Services
- F. A. Zeman, Office Supervisor
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The inspectors also talked with and interviewed members of the opera-
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tions, maintenance, health physics and instrument control sections.
- Denotes personnel attending the exit interviews.
2.
Operational Safety Verification The inspector observed control room operations, reviewed applicable
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l logs and conducted discussions with control room operators during the i
month of October.
The inspector verified the operability of selected l
emergency systems, reviewed tagout records and verified proper return to service of affected components. Tours of both auxiliary buildings
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and turbine buildings were conducted to observe plant equipment condi-
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tions, including potential fire hazards, fluid leaks, and excessive
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vibrations and to verify that maintenance requests hai been initiated
for equipment in need of maintenance.
The inspector by observation l
and direct. interview verified that the physical security plan was being implemented in accordance with the station security plan.
The inspector observed plant housekeeping / cleanliness conditions and verified implementation of radiation protection controls. During the l
month of October, the inspector walked down the accessible portions I
of the safety injection and containment spray systems to verify operability.
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These reviews and observations were conducted to verify that facility operations were in conformance with the requirements established under i
technical specifications, 10 CFR, and administrative procedures.
The following matters were reviewed:
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-a.
Safety Injection System - Valve Locking Device During the walkdown of the safety injection system, the inspector observed the locking device on a Unit 2 cold leg injection valve broken. The locking device is part of the administrative controls applied to ensure the valve is properly positioned at all times.
l The inspector verified the valve was in its expected position. The problem was promptly corrected when brought to the attention of licensee supervisory personnel.
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b.
Chemical and Volume Control System - Holdup Tanks
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On October 5, 1980, the licensee identified a.9 psig decrease in cover gas pressure on the chemical and volume control system holdup tanks.
Cover gas for the tanks is supplied by the waste gas system with pressure maintained by the waste gas compressor in conjunction with pressure control valves. A review of the logs showed the decrease occurring over a 78 hour9.027778e-4 days <br />0.0217 hours <br />1.289683e-4 weeks <br />2.9679e-5 months <br /> period following placing the gas analyzer on the line for the reactor coolant drain tank.
During
a walkdown of the system as a result of the pressure decrease, a leaking compression fitting on a pneumatic pressure control valve was dis-covered. The valve was isolated and the fitting repaired at 7:45pm on October 5.
Pressure in the system returned to normal. Based on the leak rate and the concentrations of radionuclides in the cover gas, a release rate of 1 X 10 -4% of Technical Specification limits was calculated. The auxiliary building vent monitor did not alarm or show any increase during the period in which the leak existed.
c.
Spent Fuel Pool - Leak Repair In Report Nos. 50-266/8D-02 and 50-301/80-01, one item of concern was identified. This item involved the licensee's continuing investigation of potential sources of tritiated water. The report described a test i
conducted last winter which had little success and concluded the dis-cussion with the statement that the licensee would continue planning
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and evaluating potential options.
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The following is an update on this open item. Prior to July 18, 1980, the licensee had identified a 10 ml/hr leak rate from the spent fuel pit leak-off channels. On that date the licensee detected leaks in the spent fuel pit liner floor to south wall weld.
The leaks were detected by injecting dye into the leak-off channels and using a diver with a vacuum box to identify any dyc bleeding through the welds.
Four pin hole leaks were peened over by the diver and the leak rate decreased to 4 ml/hr.
On September 30, 1980, the diver was sent back into the spent fuel pit to make a permanent fix on the areas peened over, by welding a bead over them. The first area done was successful. While attempting the second area, the diver burned through the liner. On October 1, 1980, a small metal plate was welded over this hole and the third and fourth areas were successfully repaired. After evaluating the leak-off channels and re-establishing leak rate monitoring over the weekend of October 4 and 5, the leak rate was determined to be approximately 2000 ml/hr.
On October 8, 1980, the diver using the vacuum box found the leak to be in the weld around the metal plate he had welded on earlier. This time a box was fabricated with fittings to allow evacuation or pressur-ization that covered the entire area of the patch and provided a better surface to facilitate welding. After this box was welded in place, a subsequent leak rate test showed a leak rate of 28 ml/hr. On October 10, 1980, a leak was discovered in the weld between the box and the spent fuel pit floor.
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The licensee has been exploring alternative methods for repairing
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this leak and has decided to wait until after the Unit I refueling before making any further attempts. This will continue to be an open item pending final resolution by the licensee.
No items of noncompliance were identified.
3.
Monthly Maintenance Observation Station maintenance activities of safety related systems and components listed below were observed / reviewed to ascertain that they were con-ducted in accordance with approved procedures, regulatory guides and industry codes or standards and in conformance with technical specifi-cations.
The following items were considered during this review:
the limiting conditions for operation were met while components 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 quali-fled personnel; parts and materials used were properly certified; and, fire prevention controls were implemented.
Work requests were reviewed to determine the status of outstanding jobs and to assure that priority is assigned to safety related equipment maintenance which may affect system performance.
The following maintenance activities were observed / reviewed:
a.
Upgrading of penetration fire barriers, b.
Annual overhaul of the 4D diesel generator.
Following completion of maintenance on the 4D diesel generator, the inspector verified that the system had been returned to service properly.
While monitoring the installation of wall penetration fire barriers, the inspector noted several contractor employees wearing neither safety glasses nor hard hats. This is contrary to licensee safety requirements. The situation was promptly corrected when brought to the attention of licensee supervisory personnel.
No items of noncompliance were identified.
4.
Monthly Surveillance observation The inspector observed technical specifications required surveillance testing on in core flux mapping and_ verified that testing was performed in accordance with adequate procedures, that test instrumentation was calibrated, that limiting conditions for operation were met, that removal and restoration of the affected components were accomplished, and that test results conformed with technical specifications and procedure.re-quirements and were reviewed by personnel other than the individual directing the test.
No. items of noncompliance were identified.
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5.
Licensee Event Reports Followup
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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 present recurrence had been accomplished in accordance with technical specifi-cations.
Docket No.
LER NO.
Title 50-266 80-11/02L Inadequate Testing of Containment 50-301 Spray System No items of noncompliance were identified.
6.
IE Bulletin Followup For the IE Bulletins listed below, the inspector verified that the written response was within the time period stated in the bulletin, that the written response included the information required to be reported, that the written response included adequate corrective action commitments based on information presented in the bulletin and the licensee's response, that licensee management forwarded copies of the written response to the appropriate onsite management representatives, that information discussed in the licensee's written response was accurate, and that corrective action taken by the licensee was as described in the written response.
IEB 79-07 Seismic Analysis of Safety Related Piping IEB 79-13 Cracking in Feedwater System Piping IEB 79-13 Revision 2 - Cracking in Feedwater System Piping IEB 79-16 Vital Area Access Controls IEB 79-17 Pipe Cracks in Stagnant Borated Water Systems at PWR Plants IEB 79-17 Revision 1 - Pipe Cracks in Stagnant Borated Water Systems at PWR Plants IEB 79-19 Packaging of Low-Level Radioactive Waste for Transport and Burial IEB 79-25 Failure of WEC BFD Relays IEB 80-03 Loss of Charcoal from Type II Absorber IEB 80-04 MSLB with Continued Addition of Feedwater IEB 80-05 Vent Protection for CVCS Tanks IEB 80-09 Hydromotor Actuate Deficiencies IEB 80-12 Decay Heat Removal System Operability-No items of noncompliance were identified.
7.
IE Circular Followup For the IE Circulars listed below, the inspector verified that the Circular was received by the licensee management, that a review for applicability was performed, and that if the circular were applicable to the facility, appropriate corrective actions were taken or were scheduled to be taken.
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IE Circular Followup - cont'd.
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IEC 79-15 Bursting of liigh Pressure llose and Malfunction of Relief Valve "0" Ring in Certain Self-Contained Breathing Apparatus IEC 79-21 Prevention of Unplanned Releases of Radioactivity IEC 79-25 Shock Arrester Strut Assembly Interference No items of noncompliance were identified.
8.
Review of Plant Operations During the month of October, the inspector reviewed the following activities:
a.
Procurement The inspector reviewed the procurement and storage activities to ascertain whether the purchase of components, materials, and supplies used for safety related functions, is in conformance with the licensee's approved QA program and implementing procedures; non-conforming items are segregated and marked accord-ingly; applicable preventative maintenance is performed; house-keeping and environmental requirements are met; and, limited shelf-life items are controlled.
b.
Training The inspector attended one of the licensee's operator requalification lecture series and verified that lesson plan objectives were met and that training was in accordance with the approved operator requalifi-cation program schedule and objectives.
No items of noncompliance were identified.
9.
Exit Interview The inspector met with licensee representatives (denoted in Paragraph 1)
throughout the month and at the conclusion of the inspection period and summarized the scope and findings of the inspection activities. The licensee acknowledged the findings.
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