IR 05000454/1986020

Insp Repts 50-454/86-20 & 50-455/86-12 on 860513-15.No Violation or Deviation Noted.Major Areas Inspected: Preoperational Gaseous & Liquid Radwaste Program for Unit 2, Including Status of Certain Preoperational Demonstrations

ML20211E352
Person / Time
Site:	Byron
Issue date:	06/04/1986
From:	Hueter L, Schumacher M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20211E321	List: IR 05000454/1986020 ML20211E316
References
50-454-86-20, 50-455-86-12, NUDOCS 8606130326
Download: ML20211E352 (5)

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U.S. NUCLEAR REGULATORY COMMISSION

REGION III

Reports No. 50-454/86020(DRSS); 50-455/86012(DRSS)

Docket Nos. 50-454/50-455 Licenses No. NPF-37; CPPR-131 Licensee: Commonwealth Edison Company Post Office Box 767 Chicago, IL 60690 Facility Name: Byron Station, Units 1 and 2 Inspection At: Byron Station, Byron, IL Inspection Conducted: May 13-15, 1986 L. J. Hueter *bh Inspector: &lVff6 Date Approved By: . Schumacher, Chief

&/yffg Radiological Effluents and Date Chemistry Section Inspection Summary Inspection on May 13-15, 1986 (Reports No. 50-454/86020(DRSS);

50-455/86012(DRSS))

Areas Inspected: Nonroutine, announced inspection of preoperational gaseous and liquid radwaste program for Unit 2 including; status of certain preoperational demonstrations and tests of systems, post test evaluations, and resolution of deficiencies. Attempts to witness portions of preop tests of Process Monitor Loop 3 were not successful due to problems resulting in test delays. The inspector also viewed licensee actions regarding one previous open item involving both Units 1 and Results: No violations or deviations were identified.

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B606130326 PDR 860604ADOCK PDR 05000454 G

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e j DETAILS Persons Contacted i *A. Britton, QA Inspector

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W. Burkamper, QA Supervisor (Operations)

R. Campbell, Electrical Group Leader

• A. Chernick, Regulatory Assurance Supervisor

• E. Flab, Unit 2 Testing Supervisor R. Farias, Systems Test Engineer, PR System R. Fla' hive, Rad / Chem Supervisor

J..' Gables, Systems Test Engineer, AB System R' Kane, Systems Test Engineer, Turbine

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• R. Pleniewicz, Production Superintendent

• R. Querio, Byron Station Manager

• St. Clair, Assistant Superintendent - Work Planning

• J. Schrock, Radwaste OE J. Smith, Waste Gas System Engineer M. Snow, Assistant Compliance Supervisor L. Wehner, Technical Staff, Radwaste Group Leader

• K. Yates, Nuclear Safety

• E. Zittle, Byron Compliance Staff

• P. Brochman, NRC Resident Inspector The inspector also contacted other licensee personne * Denotes those present at the exit meetin . Licensee Action on Previous Inspection Findings t

(0 pen) Open Item (454/85051-02; 455/85037-02): Commitment to evaluate cause of occasional readings significantly above background observed on the WGDT effluent line monitor between tank releases. As noted in inspection report 454/86006; 455/86005, the licensee's evaluation was continuing bectuse initial corrective measures (which included addition of a 15 minute flush following each release) were not fully successful in eliminating the proble It was also noted in the referenced inspection report that the licensee was considering the possibility that the order of valve closures following a release may result in trapping of waste gas under pressure between

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isolation valves and cause the elevated reading when the downstream valve

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is opened for testing the monitors' isolation function before a new release is made. Procedures have recently been modified to change the order of valve closure. Further, the licensee is planning a temporary modification involving a nitrogen purge of the WGDT release line that will, in conjunc-tion with the valve closure sequence, purge the line both upstream and downstream of the flow control / isolation valve. If these measures i

prove successful, a nitrogen purge provision will be made a permanent modification. The licensee's progress in evaluation of this problem will be reviewed during a future inspectio _ . _ _ ~ _ _ - .. _ . _ _ - _ . . - _ _ _ _ . _ - _ _ . - - . . . . _ _ - _ _ ,

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. Unit 2 Preoperational Systems Demonstrations and Tests Status of Prev ously Reviewed Demonstrations and Tests (1) OG 2.55.70 Offgas Of the three significant deficiencies remaining open during the last inspection, two have been closed. The replacement of four gauges (two on steam jet air ejector (SJAE) lines and two on the gland steam condensers) with gauges which have readouts in proper units has been accomplished in time for the integrated hot func-tional (IHF) tests and the deficiency has been closed. The design modification and installation of drain lines to control water level in the loop seals from the SJAE offgas discharge lines has been completed and the deficiency close Deficiency 61435 regarding the need to calibrate the flow indicating loops for the SJAE remains open and is now planned to be accomplished after initial criticality, during low power testing, on the basis that more meaningful testing can be accomplished using actual system generated stea (2) AB 2.01.60 Boric Acid (Pumps and Tank Level Alarms)

Of the five sign : ant deficiencies remaining open during the last inspection (scheduled for completion by fuel load), one has been closed. Oil seal replacements to correct excessive oil leakage through the pump casing shaft has been completed and the deficiency has been closed. Deficiency 61997 (System Deficiency No. 1.60-062) involving recalibration of two level transmitters both of which were slightly out of specification (in the conser-vative direction) at the upper end of the scale. A retest, Retest 2024, is currently being written and the licensee expects to complete this activity in July 198 The licensee had planned to correct /close the other three deficiencies during a retest, Retest 2006, conducted March 18, 198 However, the deficiencies proved uncorrected durin'g this test, therefore, these three deficiencies remain open. Deficiency 61197 (System Deficiency No. 1.60-031) involves the capability of the Unit 2 boric acid

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filter to handle the capacity from a simultaneous two pump operation (measured capacity was.126 gpm whereas criteria specifies 150 5 gpm). Deficiency 61199 (system Deficiency No. 1.60-033) involved slightly excessive vibration of the

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boric acid Pump 2AB03P. Deficiency 61209 (System Deficiency No. 1.60.034) involved the need to recalibrate a density transmitter at indictor 2 DIAB 006 for indication of boric acid concentration. Also, since the March retest, the boric acid pump burned out and has been rebuilt and some other modifications have been made which should permit closure of the remaining deficiencies during a retest, Retest 2023, planned for June 1986.

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(3) AB 2.01.70 Boric Acid (Evaporator)

I Of the eight significant deficiencies identified as remaining open during the last inspection, two have been closed but one additional one has been identified. One of these deficiencies is scheduled to be completed by initial criticality; the remaining deficiencies are scheduled to be completed by system release to operation (RTO). Hydrotesting the system and insulating the evaporator have been completed and the two deficiencies close Deficiency 61704 involving a new thermal cutout switch (activates

at 280 vs. 200 degrees Fahrenheit) on concentrates Pump AB02DB-B has been installed and is r?ady for functional testing which is planned for the July - August period. Deficiency 61081 involves completing electrical connections on a solenoid valve (installed on an air line) which will close on receipt of a high pressure signal from the evaporator. It is now ready for functional testing which is planned for the July - August perio Deficiency 61082 involves completion of installation and functional testing of evaporator temperature interlock associated with the rupture dis Installation is complete and functional

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testing is planned for the July - August perio Deficiency 61324 (newly identified for followup by the inspector)

involves a component demonstration (Component Demo C-2407) of the temperature and pressure interlocks to resolve problems with the recycle evaporator rupture disc. This demonstration is also planned for the July - August period. Deficiencies 61138 and 61139 involve Valves 0AB5307B and 0AB5316B respectively, which leaked past seat and disc. Both have been repaired and are ready for required functional check planned for the July - August period. Deficiency 61203 involves a required modification to reference leg fill line for the evaporator level transmitte . This deficiency is scheduled to be completed by initial f

criticality; however, the modification is complete and ready for retesting which is planned for the July - August perio Status of Demonstratons and Tests Not Previously Reviewed by Inspector

(1) PR 2.60.61 Process Monitors (Loop 1)

This test has been completed and the test results are in the licensee's review process. Portions of this preoperational test

. were recently witnessed by another NRC inspector (Inspection

' Report 50.455/86013). The resolution of licensee identified deficiencies will be reviewed and follow'dd at a later date after the licensee's review of the test package is complet (2) PR 2.60.63 Process Monitors (Loop 3)

l' Loop 3 involves the preopcrational testing'of three monitors, two

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service water outlet monitors and the SJAE/ gland steam exhaust gas monitor. The inspector planned to witness portions of these

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test However, when the inspection began, tests of one of the service water monitors had been completed and tests of the other

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two monitors were in various stages of completion but were on hold due to problems encountered during the tests. Although it was anticipated that the holds would be lifted, the tests of these two monitors were on hold basically throughout the two and one half day inspection. Therefore the tests were not witnesse According to licensee personnel, the process monitor system demonstrations and test of Loops 2. 4, and 5 will probably begin in late May or Jun Items to be completed in this area include preoperational testing and

, demonstration of some systems; post test evaluations of some systems; and

! resolution of deficiencies identified during testing and demonstration of these gaseous and liquid processing and monitoring systems. These tests and demonstrations will be reviewed during a subsequent inspection. (0 pen

Item 50-455/86005-01 remains open.) Exit Interview The inspector summarized the scope and findings of the inspection with licensee representatives (Section 1) at the conclusion of the inspection i on May 15, 1986. The inspector discussed the likely informational content

of the inspection report with regard to documents or processes reviewed by the inspector during the inspection. The licensee did not identify such documents or processes as proprietary.

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