IR 05000301/1982010

IE Insp Rept 50-301/82-10 on 820419-21.No Noncompliance Noted.Major Areas Inspected:Containment Integrated Leak Rate Test

ML20054L815
Person / Time
Site:	Point Beach
Issue date:	06/21/1982
From:	Jackiw I NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20054L810	List: IR 05000301/1982010 ML20054L809
References
50-301-82-10, NUDOCS 8207080501
Download: ML20054L815 (4)

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U.S. NUCLEAR REGULATORY COMMISSION ,

REGION III

Report No. 50-301/82-10 Docket No. 50-301 License No. DPR-27

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Licensee: Wisconsin Electric Power Company 231 West Michigan Milwaukee, WI 53203 Facility Name: Point Beach Nuclear Power Plant, Unit 2 Inspection At: Point Beach Site, Two Creeks, WI Inspection Conducted: Apr ,19-21, 1982 Inspector: N /a 1 [ W V 2-Approved By:

YI. N. Jackiw, Chief 8W M t Program Section / '

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Inspection Summary Inspection on April 19-21, 1982 (Report No. 50-301/82-10)

Areas Inspected: Routine, announced inspection of the containment integrated leak rate test. The inspection involved a total of 19 inspector-hours onsite by one NRC inspector including 6 inspector-hours during off-shif Results: No items of noncompliance or deviations were identified.

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DETAILS Persons Contacted

• G. A. Reed, Manager, Nuclear Operations

• R. E. Link, Superintendent, Quality and Regulatory J. G. Schweitzer, Inservice Inspector Engineer W. B. Fromm, Nuclear Plant Engineer

• Denotes those present during exit intervie . Point Beach Unit 2 Containment Integrated Leak Rate Test Procedure Review The inspector reviewed the licensee's procedure for the containment integrated leak rate test and verified that the procedure was tech-nically adequate and consistent with regulatory requirement Instrumentation The inspector reviewed the calibration data associated with per-forming the CILRT. All the instruments used in the CILRT had been calibrated as required. The instrument calibration coefficients, RTD weighting factors, and volume weighting factors were placed into the ILRT Computer Program as require The following instrumentation was used in the CILRT:

TYPE QUANTITY RTD's 21 Flowmeter 2 Pressure Gauge 2 Dewcells 6 Witness of Test The inspector witnessed portions of the C1LRT on April 19-21, 1982, and noted that:

Appropriate revisions of the procedure were in use by test personne Test prerequisites were me Proper plant systems were in servic .

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d. Valve Lineups The inspector verified that the valve lineups were conducted and documented in accordance with an approved test procedur e. Blowdown and Containment Inspection The resident inspector verified that blowdown was within technical specification radioactivity release limits, analysis and calcula-tions were completed before the release started, and that required environmental monitoring equipment was functional before the release began. The resident inspector also conducted an independent post CILRT containment inspection for equipment degradation after blow-down and did not identify any degradatio f. CILRT Data Evaluation The twelve hour reduced pressure CILRT was started on April 20, 1982. The inspector independently monitored and evaluated leak rate data to verify the licensee's calculation of the leak rat There was acceptable agreement between the inspector's and licensee's leak rate calculations as indicated in the following summary (units are in weight percent per day):

Measurement Licensee Inspector Leakage rate measured (Ltm) 0.0491 0.0378 during CILRT Ltm at 95% confidence level 0.0715 0.0691 Appendix J Acceptance Criteria at 95% confidence level = 0.75 Lt

= 0.75 (0.268%/ day) = 0.201%/ day. As indicated above, the Ltm at the 95% confidence level was less than the maximum allowable by 10 CFR Part 50, Appendix g. Supplemental Test Data Evaluation Af ter the satisfactory completion of the twelve hour test on April 20, 1982, a known leakage of 3.059 SCFM or 0.143 weight per-cent per day was induced. The inspectors independently monitored and evaluated Icak rate data to verify the licensee's calculation of the supplemental leak rate. There was acceptable agreement be-tween the inspector's and the licensee's leak rate calculations as indicated in the following summary (units are in weight percent per day):

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Measurement Licensee Inspector Measured leakage (Lc) rate 0.2053 0.2075 during supplemental test Induced leakage rate (Lo) = 3.059 scfm (0.143%/ day)

Appendix J Acceptance Criteria: Lo + Ltm - 0.25 Lt 5 Lc 5 Lo +

Ltm + 0.25 Lt. As indicated above, the supplemental test results satisfied the requirements of 10 CFR Part 50, Appendix No items of noncompliance or deviations were identifie . Exit Interview The inspector met wi*!- licensee representatives (denoted in Paragraph 1)

on April 20, 1982 and discussed the purpose, scope, and preliminary findings of the inspection. The inspector summarized the results of the inspection in a telephone conversation with Mr. R. Link on June 21, 198