ML18141A274

Reactor Containment Bldg Integrated Leak Rate Test-Types A,B & C.

ML18141A274
Person / Time
Site:	Surry
Issue date:	09/30/1983
From:	STONE & WEBSTER ENGINEERING CORP.
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ML18141A273	List: ML18141A272 ML18141A274
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NUDOCS 8312200472
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Text

REACTOR CONTAINMENT BUILDING INTEGRATED LEAK RATE TEST TYPES A, B, AND C PERIODIC TEST VIRGINIA ELECTRIC AND POWER COMPANY Surry Nuclear Power Station

• Unit No. 2 September 1983 PREPARED BY STONE & WEBSTER ENGINEERING CORPORATION BOSTON, MASS

~ - - ---------------- ---- - - - - ~ ,

~---8312200472 831213 PDR ADOCK 05000281 p PDR

e TABLE OF CONTENTS

• Section REFERENCES LIST of ATTACHMENTS Title iii iv 1 PURPOSE 1-1 2

SUMMARY

2.1-1 2.1 TYPE A TEST 2.1-1 2.2 'LOCAL LEAK RATE TESTS (TYPES BAND C) 2.2-1 3 TYPE A TEST . 3.1-1 3.1 EDITED LOG OF EVENTS 3.1-1 3.2 GENERAL TEST DESCRIPTION 3.2-1 3.2.1 Prerequisites . . . . . . 3.2-1 3.2.2 Equipment and Instrumentation 3.2-1 3.2.3 Data Acquisition System 3.2-2 3.2.4 Data Resolution System 3.2-2 3.3 TEST RESULTS 3.3-1 3.3.1 Analysis of Test Results 3.3-1 3.3.2 59.7 psia CILRT Results . 3.3-2 4 LOCAL LEAK RATE TESTS (TYPES BAND C) 4-1

• ii

REFERENCES

• 1.

2.

10CFR50 Appendix J, Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors, October 22, 1980.

2-PT-16.3, Reactor Containment Building Integrated Leak Rate Test, 1983.

3. ANSI N45.4, American National Standard Leakage-Rate Testing of Containment Structures for Nuclear Reactors, March 16, 1972 ..

4. ANSI/ANS-56.8, Containment System Leakage Testing Requirements, February 19, 1981 1

• 1 This document used only as a guideline and any reference to said document in no way implies compliance.

• iii

e LIST OF ATTACHMENTS

• Attachment 3.2A 3 .2B Site Meteorology Instrumentation Title 3.2C CILRT Temperature Detector Locations 3.2D CILRT Dewpoint Temperature Sensor Locations 3.3A CILRT Input Variables 3.3B CILRT Absolute Method-Total Time Analysis Test Results 3.3C CILRT Absolute Method-Mass Point Analysis Test Results 3.3D Graph - Containment Mass vs. Time 3.3E Graph - Leak Rate and UCL vs. Time Total Time Analysis 3.3F Graph - Leak Rate and UCL vs. Time Mass Point Analysis

.4A Local Leak Rate Test Data

• iv

- SECTION 1

• PURPOSE The purpose of this report is to present a description and analysis of the September 1983, Type A Periodic Containment Integrated Leak Rate Test (CILRT), and a summary of the Type B and C tests conducted on the Virginia Electric and Power Company's Surry Nuclear Power Station, Unit No. 2.

This report is submitted as required by 10CFRSO, Appendix J, Paragraph V.B .

• 1-1

e e SECTION 2

• 2.1 TYPE A TEST

SUMMARY

Pressurization for the CILRT was started at *1620 hours on September 10, 1983. Equipment problems with the refrigerant air-dryer control circuitry and with the mechanical chillers interrupted containment pressurization at 1716 hours0.0199 days <br />0.477 hours <br />0.00284 weeks <br />6.52938e-4 months <br />. The pressurization was restarted at 2147 hours0.0248 days <br />0.596 hours <br />0.00355 weeks <br />8.169335e-4 months <br /> and continued until 2330 hours0.027 days <br />0.647 hours <br />0.00385 weeks <br />8.86565e-4 months <br />. The compressors were secured due to the loss of the chillers. The containment pressure at 2354 hours0.0272 days <br />0.654 hours <br />0.00389 weeks <br />8.95697e-4 months <br /> on September 10, 1983, was 26.016 psia. Repairs on the chillers continued through the night. At 0705 hours0.00816 days <br />0.196 hours <br />0.00117 weeks <br />2.682525e-4 months <br /> on September 11, 1983, the compressors were restarted. The containment pressure was 25.989 psia, the containment weighted average temperature was 85.23 DEGF, and the containment weighted average dewpoint temperature was 70.96 DEGF.

Containment pressurization was secured at 1549 hours0.0179 days <br />0.43 hours <br />0.00256 weeks <br />5.893945e-4 months <br /> on September 11, 1983, with a peak pressure of 61.550 psia. Containment weighted average air temperature was 89.77 DEGF and the containment weighted average dewpoint temperature was 77.69 DEGF.

The temperature stabilization criterion was satisfied at 2008 hours0.0232 days <br />0.558 hours <br />0.00332 weeks <br />7.64044e-4 months <br /> .

• During the pressurization sequence, periodic investigations were conducted. Leakage paths, identified during these investigations, were closely monitored into the leakage, data collection interval.

contributing to the leakage rate:

leakage The following leakage paths were

1. Secondary side leakage (steam generator to the main steam header)

2. The "A" Recirculation Spray Loop

3. The electrical penetration El8 From 2008 hours0.0232 days <br />0.558 hours <br />0.00332 weeks <br />7.64044e-4 months <br /> on September 11, 1983, to 1023 hours0.0118 days <br />0.284 hours <br />0.00169 weeks <br />3.892515e-4 months <br /> on September 12, 1983, the average mass loss per hour was decreasing. The average mass loss over these 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br /> was -18.8 lbm/hr; however, over the last 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of this interval, the average mass loss was

-12.83 lbm/hr. The acceptance criteria 0£ less than 0.75LA is equivalent to -17.36 lbm/hr.

This encouraging decreasing trend did not last. Over the next 7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />, from 1023 hours0.0118 days <br />0.284 hours <br />0.00169 weeks <br />3.892515e-4 months <br /> to 1724 hours0.02 days <br />0.479 hours <br />0.00285 weeks <br />6.55982e-4 months <br /> on September 12, 1983, the average mass loss sharply increased to approximately 35.4 lbm/hr. This is equivalent to a 7.77 standard cubic feet per minute (scfm) leak. This sudden and dramatic increase in the

• 2.1-1

e leakage could only be attributable to a component failure.

Leakage investigations were instituted without corroborating results. No new leakage paths were identified and no significant increases in known leakage paths were observed.

The secondary system was monitored for leakage by observation of pressure gages on the main steam headers. The lineup for main steam is not specifically included in the Type A procedure.

Thus, leakage from containment through the steam generators could pass through the main steam system without showing significant pressure increase. Upon further investigation, drain lines were opened and significant aii leakage was detected.

Since the secondary side is not considered a Type A leakage path, the decision was made to fill the main steam headers with water to create a water seal. The headers were only filled with water, i.e.~ they were not pressurized.

From 1724 hours0.02 days <br />0.479 hours <br />0.00285 weeks <br />6.55982e-4 months <br /> on September 12, 1983, to 0530 hours0.00613 days <br />0.147 hours <br />8.763227e-4 weeks <br />2.01665e-4 months <br /> on September 13, 1983, the average mass loss was less than 4 lbm/hr. Each header was filled one at a time with the last completed around midnight. The essentially flat mass trend continued until around 0530 hours0.00613 days <br />0.147 hours <br />8.763227e-4 weeks <br />2.01665e-4 months <br />, when the mass loss started increasing. From 0530 to 1132 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.30726e-4 months <br /> on September 13,_ 1983, the average mass loss was -33.3 lbm/hr. This trend was almost identical to the previous interval (1023 to 1724 hours0.02 days <br />0.479 hours <br />0.00285 weeks <br />6.55982e-4 months <br /> on September 12, 1983). It was concluded that the effect of the water seal had diminished .

• The filling of the headers had confirmed the secondary side as the primary leakage path. However, the water seal would not last the 12-20 hrs required to complete the leakage test. Instead of refilling, it was decided to double.valve the entire main steam system outside containment. Double valving was initiated at approximately 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> on September 13, 1983. In addition to double valving, the non-return valves were manually torgued.

There was a slight improvement in the mass loss trend, however, not what had been achieved with the water seal. At approximately 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br /> on September 13, 1983, the non-return valves were manually torgued again and an open manual isolation valve to the main steam PORV was closed . . These actions created a "tight" boundary to essentially minimize .the secondary side leakage from the Type A analysis. The start of the Type A leakage period was conservatively set at 1300. hours on September 13, 1983. The test was run for 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> and was successfully completed at 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> on September 14, 1983.

At 0609 hours0.00705 days <br />0.169 hours <br />0.00101 weeks <br />2.317245e-4 months <br /> on September 14, 1983, the mass pump-back verification test started. At 0749 hours0.00867 days <br />0.208 hours <br />0.00124 weeks <br />2.849945e-4 months <br />, the mass-pump back test was completed. The verification test satisfied the requirements of the procedure.

Depressurization of the containment began at 1044 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.97242e-4 months <br /> and was completed at 2004 hours0.0232 days <br />0.557 hours <br />0.00331 weeks <br />7.62522e-4 months <br /> on September 14, 1983 .

• 2.1-2

e 2.2 LOCAL LEAK RATE TESTS (TYPES BAND C)

• The Local Leak Rate Tests of containment isolation valves and primary containment penetrations were conducted as required by station surveillance procedures since the last Type A Test performed in December of 1981.

In accordance with Appendix J to 10CFRSO, Paragraph V.B., data for the Local Leak Rate Tests are summarized in Section 4 of this report .

• 2.2-1

SECTION 3

• 3.1 EDITED LOG OF EVENTS TYPE A TEST This log was edited from the Official Log of Events September 10, 1983 1530 - Completed containment inspection 1620 - Commenced containment pressurization 1621 - Declared Dewpoint Analyzer No. 10 as a failed sensor 1716 - Secured pressurization due to inoperable air dryer and loss of chilled component cooling water 2147 - Restarted pressurization 2306 Containment pressue 23.4 psig Containment temperature 87.9°F Containment dewpoint 69°F

• 2330 0705 -

Lost chillers, stopped compressors September 11, 1983 Containment started.

pressure 26.02 psig. Compressors re7 0810 - Pressure observed on gauges installed on main steam lines to monitor steam generator pressure were:

"A" 19 psig; "B", 6 psig; "c", 5 psig 0957 - Identified slight packing leak on MOV-2860B suction to low head pump.

1022 - Lost "c" containment air recirculation fan.

1217 - Lost "A" containment air recirculation fan.

1549 - Secured pressurization.

1725 - Observed electrical penetration E18 leaking at flange at approximately three o'clock position .

• • 3.1-1

e e 1758 - Observed minor packing leak on MOV-cs~201D and body to bonnet leak on TV-SI-2.00 .

September 12, 1983 0221 - Observed minor packing leaks and/or body to bonnet leaks on penetrations 57B, 42 and 58 ..

1616 - Opened drain valve between NRV and TV on "A" and "B" steam generator main steam lines.

1730 - Filling main steam lines in accordance with Attachment of Type A Procedure.

September 13, 1983 0030 Completed filling of main steam lines 1005 - Torqued each main steam NRV two turns.

1215 - Performed double valve isolation of main steam system in safeguards area.

1808 - Torqued each main steam NRV again. Found manual isolation to "B" main steam PORV open. Closed valve.

September 14, 1983

• 0204 -

0530 -

0750 -

Removed one manometer U0963 from program.

0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />.

Leak rate satisfied.

Pump back ve'rification test satisfied.

Failed at 0800 - Torqued E-18 electrical penetration to stop leak. No significant improvement observed.

1044 - Commenced depressurization.

2004 - Completed depressurizaiton.

2015 - Containment inspection for pretest deviations complete .

• • 3.1-2

e e 3.2 GENERAL TEST DESCRIPTION

• 3.2.1 In Prerequisites accordance with the Surry Unit No. 2 CILRT procedure, 2-PT-16.3 (Reference 2), the following is a partial listing of the prerequisites that were completed and documented prior to containment pressurization:

a. Controlled access plan in effect

b. General inspection of the accessible interior and exterior surfaces of the containment structure was performed

c. All required Type B qnd C leak rate testing completed

d. All test instrumentation calibrated or functionally verified within 6 months of the test.

e. All required system valve line-ups completed

f. Component cooling and chilled water systems were operable.

g. Plant computers were operational and programmed for the CILRT .

• h.

i.

The Official Log of Events was established and available prior to commencement of the test.

Site meteorology data recorded during the performance of the CILRT (Attachment 3.2A).

3.2.2 Equipment and Instrumentation Pressurization of the containment was achieved by utilization of eight air compressors. Air was piped through two aftercoolers in parallel and a refrigerated air dryer. Instrumentation and valving were installed to maintain proper monitoring and control during pressurization. The total capacity of the pressurization system as installed was rated at 9,900 scfm.

During the test the necessary variables used to determine containment leakage were continually monitored using instrumentation which consisted of multiple resistance temperature detectors (RTDs), chilled mirror dew point indicators, and two absolute pressure quartz manometers (Attachment 3.2B). The general locations of the temperature and moisture sensors are shown in Attachments 3.2C and 3.2D.

A mass flowmeter in the service air system was used during the mass pump back verification test. All test instrumentation

• 3.2-1

e e readings were input into the plant computer for data acquisition and averaging .

3.2.3 Data Acquisition System The Surry Unit No. 2 CILRT utilized a Westinghouse Prodac P250 to scan, log, average, and analyze data received from the containment instrumentation.

The P250 analog scan package reads all the analog inputs in a preestablished manner, converts these readings into engineering units, and then stores these values for use by the plant operators and by the plant application programs.

For the CILRT, the P250 Plant Computer monitored the following instrumentation:

Scan Rate (sec) 22 RTDs 20 5 chilled mirrors 20 2 quartz manometers 2 Instantaneous values of the CILRT instruments were recorded every 5 minutes during the test period, using the P250 digital trend function on the operator's console.

A 10-minute time average of the readings, calculated by the P250 Average and Integrate (A&I) package, was used as input in the plant computer CILRT programs.

The plant computer CILRT program consists of ILRTDATA, which runs every 10 minutes, collects A&I data for all the instrumentation, performs sensor validity checks, and calculates weighted average dew point temperature, vapor pressure, weighted average containment temperature, and containment air mass.

3.2.4 Data Resolution System After the appropriate data have been acquired and averaged, utilizing the plant computer system, the results are manually input to a remote computer system for leakage rate calculations.

Absolute Method of Mass Point Analysis The Absolute Method of Mass Point Analysis consists of calculating air masses within the containment structure, over the test period, from pressure, temperature, and dew point observations made during the CILRT. The air masses are computed using the ideal gas law as follows:

M = 144V (P-Pv) (Eq 1)

RT

• 3.2-2

e where:

• M p

Pv R

T V

=

=

air mass, lbm total pressure, psia average vapor pressure, psia 53.35 ft lbf/lbm 0 R (for air) av*erage containment temperature, 0 R.

containment free volume, 1~s x 10 6 ft 3 The leakage rate is then determined by plotting the air mass as a function of time, using a least-squares fit to determine the slope, A= dM/dt. The leakage rate is expressed as a percentage of air mass lost in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or symbolically:

Leakage rate= (A/B) (-2400) (Eg 2) where A is the slope of the least-squares curve and Bis they-intercept. The sign convention is such that leakage out of the containment is positive and the units are in percent/day. The air mass is computed and the result is correlated as a function of time by means of a least-squares fit of the form:

m =At+ B (Eq 3)

The slope A and they-intercept Bare then used in Equation 2 to determine the leakage rate.

A 95 percent confidence interval is calculated using a Student's t distribution. The sum of the leakage rate and the 95 percent confidence interval is the UCL. The measured leakage rate may be described as 95 percent accurate to within the value of the UCL.

Absolute Method Total Time Analysis The absolute method of total time analysis consists of calculating air lost from the containment pressure, temperature, and dew point observations during the CILRT.

The containment air mass is computed using Equation 1. The measured leakage rate at any time (t) is then determined by subtracting the mass at the time (Mt) from the initial mass (Mi) and dividing by the initial mass. The measured leak rate is expressed as a percentage of containment mass lost in 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or symbolically:

Measured Leak Rage Mi - Mt (2400) (Eq 4)

Mi ( t)

The sign convention is such that an outward leak is positive and the units are in percent/day .

• 3.2-3

e e The estimated leakage rate is then determined by plotting the measured leak rate as a function of time and then performing a

• least-squares fit of the mesasured leak rate values as follows:

Estimated Leak Rate= At+ B where A is the squares curves.

slope and Bis they intercept of the least-The 95 percent confidence interval is determined withe the T distribution.

The analysis method was used in conjunction with procedure 2-PT-16.3 (Reference 3) .

• 3.2-4

I e I ATTACHMENT 3.2A

• Date Time SITE METEOROLOGY Drybulb Temperature

( OF) .

Barometric Pressure (in Hg) 9-10-83 1620 93.2 30.08 1720 93.2 30.08 1820 89.6 30.06 1920 86.0 30.02 2020 75.0 30.04 2120 75.0 30.05 2220 77.0 30.05 2320 73.4 30.09 9-11-83 0020 73.4 30.09 0120 69.8 30.08 0745 71. 6 30.09 0845 77.0 30.08 0945 82.0 30.08 1045 86.0 30.08 1145 91.0 30*.09 1245 95.0 30.06 1345 95.0 30.05 1445 95.0 30.03 1545 95.0 30.03 1645 98.6 30.08 1745 97.0 30.09 1845 90.0 30.08 1945 86.0 30.07 2045 80.6 30.07 2145 80.6 29.99 2245 80.6 29.97 2345 78.8 29.97 9-12-83 0045 78.8 29.97 0145 77.0 29.97 0245 77.0 29.97 0345 75.4 29_. 97 0445 72.0 29.97 0545 68.0 29.97 0645 72~0 29.97 0745 73.0 29.97 0845 76.0 29.97 0945 78.0 29.97 1045 83.6 30.00 1145 89.0 30.01 1245 90.0 30.00 1345 *93. 0 30.00

• 1 of 2

• ATTACHMENT 3.2A (Cont) e

• Date Time 1445 Drybulb Temperature (OF) 95.0*

Barometric Pressure (in Hg) 29.99 1545 94.5 29.99 1645 93 .o* 29.98 1745 92.0 29.97 1845 90.5 -29.96 1945 88.0 29.97 2045 81. 0 29.97 2145 80.0 29.98 2245 77.6 29.99 2345 77.0 29.99 9-13-83 0045 75.0 29.99 0145 73.5 30.01 0245 73.0 30.00 0345 71.5 30.00 0445 70.0 30.03 0545 70.0 30.03 0645 71.5 30.03 0745 72.0 30.03 0845 73.0 30.04 0945 74.0 30.05 1045 74.0 30.08 1145 76.0 30.08 1245 77.0 30.05 1345 79.0 30.02 1445 80.6 30.02 1545 82 .0 30.01 1645 81. 0 30.00 1745 79.0 30.00 1845 75.2 30.02 1945 74.0 30.01 2045 73.5 30.01 2145 73.0 30.01 2245 71.0 30.02 2345 70.6 30.03 9-14-83 0045 70.5 30.03 0145 68.6 30.02 0245 6B~ 5 30.00 0345 67.0 30.00 0445 65.5 30.01 0545 65.0 30.01 0645 67.0 30.02 0745 69.5 30.02

• 2 of 2

--*** ----~

• ATTACHMENT 3.28 INSTRUMENTATION The following instrumentation was calibrated, and functionally tested no longer than 6 months prior to the performance of this test and in accordance with 10CFR50, Appendix J, and field calibration procedures using instrumentation traceable to the National Bureau of Standards.

Weight Computer Instrument Factor Point Accuracy Sensitivity RTO-LM-200-1 0.02683 T1000A 55-105°F F +/-0. 1° F +/-o.os'F RTO-LM-200-2 0.02322 T1001A 55-105°F F +/-0. 1° F +/-o.os*F RTO-LM-200-3 0.02427 T1002A 55-105° F F +/-0. 1° F +/-0.09°F RTO-LM-200-4 RTO-LM-200-5 0.01820 0.08884 T1003A T1004A 55-105°F 55-105° F E

B

+/-0. 1° F

+/-0. 1° F

+/-o.os* F

+/-0.09°F e

RTD-LM-200-6 0.08884 T1005A 55-105° F B +/-0. 1° F +/-0.09°F RTO-LM-200-7 0.08884 T1006A 55-105°F C +/-0. 1° F +/-0.09°F RTD-LM-200-8 0.08884 T1007A 55-105°F C +/-0. 1° F +/-0.09°F RTO-LM-200-9 0.04975 T1008A 55-105° F A +/-0.1* F +/-0.09°F RTD-LM-200-10 0.04975 T1009A 55-105° F A +/-0. 1° F +/-o.o9'F RTO-LM-200-11 0.04975 T1010A 55-105°F A +/-0. 1° F +/-o.os*F RTO-LM-200-12 0.02460 T1011A 55-105° F D +/-0. 1° F +/-0.09°F RTO-LM-200-13 0.02460 T1012A 55-105°F D +/-0. 1° F +/-0.09°F RTO-LM-200-14 0.02460 T1013A 55-105° F E +/-0. 1° F +/-0.09°F RTO-LM-200-15 0.02460 T4024A 55-105° F E +/-0. 1° F +/-0.09°F RTO-LM-200-16 0.04766 T4025A 55-105° F I +/-0. 1° F +/-0.09°F RTO-LM-200-17 0.04766 T4026A 55-105°F I +/-0. 1* F +/-0.09°F RTO-LM-200-18 0.04766 T4027A 55-105°F I +/-0.1° F +/-o.o9'F RTD-LM-200-21 0.03608 T4009A 55-105°F H +/-0.1° F +/-0.09°F RTO-LM-200-22 0.03961 T4020A 55-105°F H +/-0. 1° F +/-o.os'F RTO-LM-200-23 0.01782 T4021A 55-105°F G +/-0. 1° F +/-0.09°F 1 of 2

Instrument Weight Factor Point ATTACHMENT 3.28 (Cont)

Computer Range Zone Accuracy Sensitivity RTD-LM-200-24 0.06800 T4022A 55-105°F G +/-0. 1* F +/-0.09°F MT-LM-200-6 o. 14064 T4039A -40 to +2oo*F K +/-0.4°F +/-0.05°F MT-LM-200-7 0.14064 T4040A -40 to +2oo*F K +/-0.4°F. +/-0.05°F MT-LM-200-8 0.23959 T4041A -40 to +2oo*F L +/-0.4°F +/-0,05°F MT-LM-200-9 0.23959 T4042A -40 to +2oo*F L +/-0.4°F +/-0.05°F MT-LM-200-10 0.23959 T4043A -40 to +2oo*F L +/-0.4°F +/-0.05° F PI-LM-206 0.5 U0962 0-100 psia +/-0.030 psia +/-0.001%

PI-LM-207 0.5 U0963 0-100 psi a +/-0.030 psi a +/-0.001%

2 of 2

• RTD-18 IRTD-1 !

RTD-24 RTD-23 PLAN VIEW NOTES:

I. RTO-l=RTD-LM-200-1 CTYP)

. RT0-19120 NOT USED ATTACHMENT 3.2C lNSTRUM.ENTATrON LOCATION RESISTANCE TEMPERATURE

• DETECTORS (RTD)

SURRY POWER STATION-UNIT 2 INTEGRATED LEAK RATE TEST 3.2C-I

• e el 132' RTD-12 RT0-5 RTD-G RTD-7 el95' RTD-13 RT D-15 RTD-14 el 47!4" RTD-4 RTD-22

• RTD-3 RTD-21 RT0-2 RTD-1 I II el 18'-4" el

-3'-6" el-27-7 RT0-24 RTD-18 PROFILE VIEW NOTES:

I. RT 0-1:RT 0-L M-200-1 (TYP)

2. RT0-19, 20 NOT USED ATTACHMENT 3. 2C INSTRUMENTATION LOCATION RESISTANCE TEMPE RAT URE

• DETECTORS (RTD)

SURRY POWER STATION-UNIT 2 INTEGRATED LEAK RATE TEST

-3.2C-2

NOTE: PLAN VIEW MT-6 MT-LM-200-6 (TYP)

ATTACHMENT 3.20.

INSTRUMENTATION LOCATION DEW POINT SENSORS SURRY POWER STATION-UNIT 2

,r NT RAT AK RATE T T 3.20-1

- -~ --~- - - . : - ~ * * * - - - - - * - - - - **"*~* --'~*-. , .. --* -1

• e ZONE J ZONEK MT-8 M'F-IO MT-9 PROFILE VIEW NOTE:

MT-b MT-LM-200-b(TYP)

-

• I ATTACHMENT 3. 20

• 3.20-2 INSTRUMENTATION LOCATION DEW POINT SENSORS SURRY POWER STATION-UNIT 2 INTEGRATED LEAK RATE TEST

3.3 TEST RESULTS e

• 3.3.1 Analysis of Test Results The test data for the period of 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br /> on September 13, 1983, through 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> on September 14, 1983, were analyzed for the final test results using VEPCO's time sharing computer program.

The reduced input data, test results, and representative graphs are contained in Attachments 3.3A through 3.3F.

As discussed in Section 2.1, Type A Test Summary, there were three leakage paths that were contributing to the leakage rate.

These leakage paths were as follows:

1. Secondary side leakage (steam generator to the main steam header)

2. The "A" recirculation spray loop

3. The electrical penetration El8 The "A" Recirculation Spray Loop eventually pressurized to approximately test pressure. The piping and components outside containment were inspected for leakage. It is concluded that this was not a major leakage path. The valve lineup for this loop was not changed during the test, so any leakage outside the loop is accounted for in the reported leakage rates .

• The electrical penetration ElS was leaking at the flanged connection past the double 0-rings. Leakage was at the three o'clock position when facing the penetration assembly. The bolting torque was increased after the completion of the pumpback test in an attempt to quantify leakage using the Type A analysis program. No appreciable change in the leakage rate at the penetration was obtained from torquing. Leakage from this penetration is accounted for in the reported leakage rates.

Leakage through the secondary side resulted in a delay of approximately forty hours. This leakage path is not a path that would exist during the Design Basis Loss-of-Coolant-Accident (DBA LOCA}, as the secondary side would always be at a higher pressure than the primary side. During the Type A Test, the main steam system cannot be pressurized to a pressure greater than test pressure (inleakage concerns). Therefore, leakage thru the main steam system had to be either repaired or isolated before commencing with the Type A Test. The isolation of the main steam headers using the water seal and the double valving was enough to choke off this leakage path. This isolation was not a "zero leakage" boundary, so the reported leakage results still include some main steam leakage contributions.

The Absolute Method-Total Time Analysis test results are 0.060643 percent/day. This satisfies the procedural acceptance criteria

• 3.3-1

• e of 0.1 percent/day. The Absolute Method-Mass Point Analysis test results are 0.029158 percent/day. This satisfies the procedural acceptance criteria of 0.075 percent/day.

The Type A test calculations were verified by the mass pump back method. The computer calculated air mass was within 0.25LA of the metered mass as shown in Section 3.3.2.3.

3.3.2 CILRT Results The CILRT was conducted in accordance with Section 5.0 of the surveillance test procedure 2-PT-16.3.

3.3.2.1 Total Time Analysis Item (Percent/Day)

1. Leakage rate 0.023354

2. Confidence level 0.036489

3. Type C leakage penalty 0.000800

4. Total 0.060643 3.3.2.2 Mass Point Analysis Item (Percent/Day)

1. Leakage rate 0.022939

2. Confidence level 0.005419

3. Type C leakage penalty 0.000800

4. Total 0.029158 3.3.2.3 Mass Step Change {Pumpback)

Item (LBM)

1. Total measured gas 597.5 flow into containment

2. Difference between initial 572.62 and final computer mass readings

3. Difference between measured -24.88 and calculated mass (1-2)

4. 0.25 LA verification limit +/-138

• 3.3-2

e 3.3.2.4 Types Band C Penetration Leakage to be added since these pentrations could not be vented and drained.

Penetration No./Leakage (SCFH) 20 0 24 1.2 28 0.6 45 0.6 55d 0 57c 0 97b 0 97c 0 101 0 105b 0 105c 0 Total Type Band C 2.4 SCFH Total Type Band C 0.0008 percent/day 3.3-3

e ATTACHMENT 3 . 3A

• CONTAINMENT INTEGRATED LEAK RATE TEST FROM 1300 HOURS ON 9/13/8j TO 0500 0~ 9/14/83 INPUT VARIABLES Time Abs. Press. Vap. Press. Abs. Temp. Dewpoint

__U}tl (psia) (psi a) ( OR) (OF) 1300 61.160 0.4892 547.51 78.92 1320 61.158 0.4878 547.51 78.83 1340 61. 157 0.4887 547.50 78.89 1400 61. 157 0.4902 547.50 78.98 1420 61.157 0.4895 547.50 78.94 1440 61.156 0.4903 547.50 78.99 1500 61.156 0.4895 547.50 78.94 1520 61. 157 0.4887 547.50 78.89 1540 61. 155 0.4905 547.49 79.00 1600 61.154 0.4918 547.49 79.08 1620 61.154 0.4934 547.49 79.18 1640 61.154 0.4945 547.49 79.25 1700 61.154 0.4949 547.49 79.27 1720 61.154 0.4953 547.48 79.30 1740 61.154 0.4999 547.49 79.58 1800 61.153 0.5004 547.48 79.61 1820 61.154 0.4962 547.49 79.35 1840 61.153 0.4957 547.48 79.32 1900 61.154 0.4965 547.48 79.37 1920 61. 157 0.4973 547.49 79.42 1940 61.159 0.4973 547.50 79.42 2000 61. 160 0.4997 547.50 79.57 2020 61.162 0.5032 547.51 79.78 2040 61.161 0.5042 547.51 79.84 2100 61.162 0.4993 547.52 79.54 2120 61.162 0.4999 547.52 79.58 2140 61. 161 0.4999 547.51 79.58 2200 61.163 0.5009 547.53 79.64 2220 61.163 0.5001 547.54 79.59 2240 61.164 0.5009 547.55 79.64 2300 61.166 0.5015 547.55 79.68 2320 61.167 0.5022 547.55 79.72 2340 61.168 0.5020 547.57 79.71 0000 61.169 0.5027 547.57 79.75 0020 61. 170 0.5027 547.57 79.75 0040 61. 170 0.5034 547.58 79.79 0100 61. 171 0.5011 547.59 79.65 0120 61. 171 0.5009 547.59 79.64 0140 61. 171 0.4986 547.59 79.50 0200 61. 172 0.5025 547.59 79.74 0220 61. 172 0.5030 547.60 79.77 0240 61. 172 0.5060 547.60 79.95

• 1 of 2

~I e e ATTACHMENT 3.3A (Cont)

• Time J.htl 0300 0320 Abs. Press.

(psi a) 61.172 61.171 Vap. Press.

(psia) 0.5029 0.5019 Abs. Temp.

( OR) 547.60 547.60 Dewpoint (OF) 79.76 79.70 0340 61.171 0.5014 547.60 79.67 0400 61.171 0.5024 547.60 79.73 0420 61. 171 0.5009 547.60 79.64 0440 61.170 0.5037 547.59 79.81 0500 61.170 0.5039 547.59 79.82

• 2 of 2

• ATTACHMENT 3.3B CONTAINMENT INTEGRATEO LEAK RATE TEST FROM 1300 HOURS ON 9/13/83 TO 0500 HOURS ON 9/14/83 ABSOLUTE TEST METHOD - TOTAL TIME ANALYSIS Time Mass Measure Leakage Estimate Leakage Confidence UCL (Hrs) ~ (Pcti:'.da:t) {Pcti:'.da:t) _(Pcti:'.da:t) (Pct/da:t) 0.0 538384.69 0.0 0.0 0.0 0.0 0.333 538379.76 0.066015 0.0 0.0 0.0 0.667 538372. 18 0.083627 0.0 0.0 0.0 1.000 538359.34 0. 113011 0.111034 0.046832 o. 157866

1. 333 538365.05 0.065684 0.086351 0.134999 0.221350

1. 667 538349.04 0.095343 0.092889 0.085533 0. 178421 2.000 538356. 18 0.063557 0.079466 0.075186 0. 154652 2.333 538372. 18 0.023909 0.053308 0.082762 0. 136069 2.667 538348.57 0.060380 0.052414 0.072069 0. 124484 3.000 538328.25 0.083873 0.060920 0.070598 o. 131518 3.333 538313.90 0.094680 0.070633 0.069608 0. 140241 3.667 538303.84 0.098293 0.078772 0.066965 0.145737 4.000 538300.96 0.093319 0.083293 0.062775 0.146068 4.333 538306.47 0.080479 0.083155 0.058726 0.141881 4.667 538256. 11 0. 122819 0.093918 0.060127 0. 154045 5.000 538252.71 0.117674 0. 101073 0.058336 0. 159409 5.333 538289.42 0.079636 0.098049 0.057077 0. 155126 5.667 538294.71 0.070784 0.093651 0.056736 0. 150386 6.000 538296.37 0.065624 0.088960 0.056480 0. 145439 6.333 538305.93 0.055442 0.083078 0.056974 0. 140052 6.667 538313.85 0.047371 0 .. 076657 0.057649 0. 134307 7.000 538300.98 0.053313 0.072305 0.056766 0. 129071 7.333 ~38278.30 0.064680 0.070549 0.055062 0.125612 7.667 538260.65 0.072124 0.070271 0.053424 0. 123695 8.000 538303.42 0.045289 0.065840 0.052989 0.118828 8.333 538297.61 0.046587 0.062210 0.052155 0.114365 8.667 538298.57 0.044299 0.058727 0.051305 0. 110031 9.000 538287.93 0.047930 0.056206 0.050204 0.106410 9.333 538285.37 0.047443 0.053941 0.049123 0.103064 9.667. 538277". 14 0.049598 0.052237 0.048040 0.100276 10.000 538289.06 0.042632 0.049863 0.047116 0.096979

10. 333 538292. 10 0.039946 0.047486 0.046257 0.093693 10.667 538282.77 0.042594 ,D. 045596 0.045358 0.090954 11.000 538285.81 0.040074 0.043676 0.044516 0.088182

11. 333 538294.68 0.035407 0.041441 0.043763 0.085204

11. 667 538279.01 0.040382 0.039982 0.042985 0.082967 12.000 538298.47 0.032031 0.037793 0.042304 0.080097 12.333 538299.93 0.030640 0.035678 0.041644 0.077322 12.667 538320.26 0.022676 0.032961 0. 041152 0.074113 13.000 538294.22 0.031023 0.031326 0.040508 0.071835 13.333" 538280.01 0.034999 0.030232 0.039930 0.070163 1 of 2

_J

Time (Hrs)

• Mass (Lbm)

Measure Leakage (Pctl'.'.day)

ATTACHMENT 3.38 (Cont)

Estimate Leakage (Pct/day)

• Confidence

{Pctl'.'.day)

UCL

{Pctl'.'.day) 13.667 538253.65 0.042742 0.029971 0.039603 0.069574 14.000 538281.47 0.032867 0.028844 0.039061 0.067905 14.333 538281. 36 0.032140 0.027758 0.038545 0.066303 14.667 538285.73 0.030079 0.026586 0.038040 0.064626 15.000 538276.98 0.032011 0.025688 0.037597 0.063285 15.333 538290. 10 0.027503 0.024493 0.037125 0.061618 15.667 538266.25 0.033701 0.023905 0.036797 0.060702 16.000 538264.79 0.033407 0.023354 0.036489 0.059842 e

2 of 2

., e

,. ATTACHMENT 3.3C CONTAINMENT INTEGRATED LEAK RATE TEST FROM 1300 HRS ON 9/13/83 TO 0500 HOURS ON 9/14/83 ABSOLUTE TEST METHOD - MASS POINT ANALYSIS Time Mass Leakage Confidence UCL (hrs) (lbm) (Pct/day) (Pct/day) (Pct/day) 0.0 538384.69 0.0 0.0 0.0 0.333 538379.76 0.0 0.0 0.0 0.667 538372.18 0.083635 0.086876 0.170511 1.000 538359.34 0.111823 0.049737 0.161561

1. 333 538365.05 0.079859 0.049183 0.129041 1.667 538349.04 0.089881 0.031646 0.121526 2.000 538356.18 0.073611 0.028385 0.101997 2.333 538372.18 0.042874 0.040079 0.082953 2.667 538348.57 0.046712 0.030556 0.077268 3.000 538328.25 0.060942 0.028387 0.089329 3.333 538313.90 0.074655 0.027071 0.101726 3.667 538303.84 0.084870 0.024701 0.109571 4.000 538300.96 0.089517 0.021239 0.110756 4.333 538306.47 0.087778 0.018140 0.105918 4.667 538256.11 0.101285 0.020840 0.122125 5.000 538252.71 0.109093 0.019788 0.128882 5.333 538289.42 0.102689 0.018541 0.121230 5.667 538294.71 0.095148 0.018081 0.113230 6.000 538296.37 0.087901 0.017682 0.105583 6.333 538305.93 0.079540 0.017933 0.097473 6.667 538313.85 0.070939 0.018313 0.089252 7.000 538300.98 0.065681 0.017408 0.083089 7.333 538278.30 0.064264 0.015917 0.080181 7.667 538260.65 0.064889 0.014571 0.079460 8.000 538303.42 0.059498 0.014402 0.073901 8.333 538297.61 0.055415 0.013869 0.069284 8'.667 538298.57 0.051632 0.013352 0.064983 9.000 538287.93 0.049274 0.012594 0.061868 9.333 538285.37 0.047268 0.011874 0.059142 9.667 538277.14 0.046041 0.011133 0.057174 10.000 538289.06 0.043795 0.010632 0.054427 10.333 538292.10 0.041465 0.010215 0.051680 10.667 . 538282. 77 0.039978 0.009695 0.049674 11.000 538285.81 0.038333 0.009256 0.047590

11. 333 538294.68 0.036207 0.008963 0.045170

11. 667 538279.01 0.035197 0.008515 0.043712 12.000 538298.47 0.033081 0.008309 0.041389 12.333 538299.93 0.031069 0.008106 0.039175 12.667 538320.26 0.028186 0.008182 0.036367 13.000 538294.22 0.026885 0.007870 0.034754 13.333 538280.01 0.026334 0.007500 0.033834 13.667 538253.65 0.026941 0.007163 0.034104

• 1 of 2

• " e ATTACHMENT 3.3C (Cont)

• Time (hrs) 14.000 14.333 Mass (lbm) 538281.47 538281.36 Leakage (Pct/day) 0.026203 0.025486 Confidence (Pct/day) 0.006863 0.006584 UCL (Pct/day) 0.033066 0.032070 14.667 538285.73 0.024617 0.006344 0.030961 15.000 538276.98 0.024113 0.006085 0.030198 15.333 538290.10 0.023140 0.005899 0.029039 15.667 538266.25 0.023038 0.005652 0.028689 16.000 538264.79 0.022939 0.005419 0.028359

• 2 of 2

• 538400 538375 I: 538350 m

....I 538325 U)

I e,

U) 538300 cc I:

538275

~

t-t cc 538250

• 538225 (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S)

(S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) . (S) 53 (S) (S) (S)

(Y) "¢ ID (D I"- CD 0) (S) (\J (Y) "¢ ...... (\J (Y) "¢ ID

...... ....... ...... ,..... ,..... ...... ,..... (\J (\J (\J (\J (\J (S) (S) (S) (S) (S) 9-13-83 ATTACHMENT 3.3D TIME - HOURS CONTAINMENT AIR MASS VS. TIME SURRY NUCLEAR POWER STATION UNIT 2 INTEGRATED LEAK RATE TEST

UCL LEAK RATE, DAY TOTAL TIME

" /

(S)

I\J Ul (S)

Ul (S)

(S)

"'\J Ul (S) .

(S)

I\J Ul Ul (S)

"'\J Ul I\J (S)

(S)

I\J I\J Ul 1300

-t 1-1

t r,

1400 1500 ,,-' ---- -- --

t'

c 1600 0

C: 1700

' 'l Al U) (0

-I 1800 I

\

Ca)

I I H U) r :0 a, 1900 ZCrrJ-1 Ca) I

-I ;o :0 -I I f11 ;o :r;: :0 2000 I G) -< ()

o ;o I

OZ:03: J

-IC-lrl 2100 ./

rl () fTl z t:l r -I I fT1 90 2200 I r :o w rlAJC*

() w I

0

r::-urrri 2300 I 0

o L <

I

0 fT1 U)

-I :;u

• 2400 I rl I U)

-f -I

-I H

0100 I rl :0 3:

U) -I rl I

-f H 0200 I 0

z I C

0300 /.

zH I

-I 0400 I I\J I 0500 l__ *

~

• . 125 Cl

' . 100

. t-z W M

~ ~ .075

~

~

f5 i en en

.050

...J ad

.025

...J u

J (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S) (S)

(S)

(l')

(S)

~

..-t (S)

If)

..-t (S)

(D

..-t (S)

I'-

(S) 00 (S) 13-83 0)

..-t (S)

(S) ru -

(S) ru (S) ru ru (S)

(l')

ru (S)

~

ru -

(S)

(S)

(S) ru (S)

(S)

(l')

(S)

(S)

~

(S)

(S)

If)

(S)

ATTACHMENT 3.3F TIME - HOURS LEAK RATE & UCL vs. TIME SURRY NUCLEAR POWER STATION UNIT 2 INTEGRATED LEAK RATE TEST

• e e SECTION 4

• LOCAL LEAK RATE TESTS (TYPE BAND C)

Section 4 analyzes the Local Leak Rate Test (LLRT) data performed since the December 1981 Type A Test. This analysis is comprised of LLRT Penetration Data (see Attachment*4A).

Multiple penetration designations have been reassigned in accordance with VEPCO drawings 11448-FV-lA and 11448-FV-lR.

These designations are as follows:

Alphanumeric Old New Designation Designation Designation XXXA Upper Left Upper Left XXXB Upper Right Lower Left xxxc Lower Right Upper Right XXXD Lower Left Lower Right The penetrations, as designated above the XXX's, that were affected are 55, 56, 57, 97, and 105. Those penetrations not listed in Attachment 4B, such as SSA, are spares.

The combined "as-left" leakage rate for all the valves and penetrations subject to Type Band C testing is well below the acceptance criteria of less than 0.60LA. See Attachment 4A .

• 4-1

ATTACHMENT 4A LOCAL LEAK RATE TEST PENETRATION DATA Type Equipment/Valves Prerepa i r Postrepair Penetration Test Tested Leakage { scfh l, Leakage { scfh l, MR No., Repair 7 Safety C 2-Sl-150 0. 1 0.0 Inject ion MOV-2867C 0.0 0.0 MOV-2867D 0.0 0.0 15 Charging C 2-CH-309 0.0 0.0 MOV-2289A 0.0 0.0 19 Charging C MOV-2381 0.0 0.0 20 21 23 Safety I njec.t ion Safety Injection Safety Injection C

C C

2-Sl-32 MOV-2842 MOV-28698 o.o 0.0 0.0 0.0 0.0 0.0 24 Residual Heat C MOV-RH-200 1.2 1.2 Removal 28 Chemical and C HCV-2200 A,B,C >40 0.6 S2307110656 lapped seat, new gaskets Volume TV-2204 o.o 0.0 S2307110655 Reworked plug and cage Cont ro I S2307110654 Reworked plug and cage 32 Gaseous C TV-GW-203 0.0 0.0 Waste TV-GW-202 0.0 0.0 33 Gaseous Drains C TV-DG-208A 0.5 0.0 TV-DG-2088 0.0 0.0 38 Aerated Drain C TV-DA-200A >40 4. 1 TV-DA-2008 >40 3.0 S2307120532 Grind plug _and seat 42 43 Service Air C C

2-SA-81 2-SA-82 0.0 0.0 0.0 0.0 e Air 2-RM-3 3.0 3.0 S2307080602 Grind seat on fl~pper TV-RM-200A 0.0 0.0 NA 44 Air C TV-RM-2008 0.0 0.0 Monitoring TV-RM-200C 0.0 0.0 i'

1 of 5

Penetration Type Test Equipment/Valves Tested ATTACHMENT 4A (Cont)

Prerepa i r Leakage { scfhl, Postrepair Leakage { scfh l, MR No., Re1;1a i r

• ~

~

45 Primary C 2-RC-160 0.6 0.0 Grade Water TV-2519A 0.0 0.0 46 Charging C FCV-2160 >40

• 0.0 47 Instrument C 2-IA-864 1. 1 0.0 Air 2-IA-704 1. 9 0.0 S2307081046 Lapped seat and rep I aced gasket TV-IA-200 0.0 0.0 48 Vent and C TV-VG-209A 0.0 0.0 Ora in TV-VG-209B 0.0 0.0 50 Safety Injection C TV-Sl-201A TV-Sl-2018

>40 0.0

. 0.0 0.0 e 51 Service C 2-SW-206 0.0 0.0 Water 2-SW-208 0.0 0.0 53 Safety C 2-Sl-234 0.0 0.0 Injection TV-Sl-200* 0.0 o.o 54 Primary C 2-VA-1 0.0 0.0 Vent 2-VA-9 0.0 0.0 55D Leakage C TV-LM-200G 0.0 0.0 Monitoring TV-LM-200H 0.0 0.0 56A Sample C TV-SS-206A 0.0 0.0 System TV-SS-2068 0.0 0.0.

568 Sample C TV-SS-202A 0.0 0.0 System TV-SS-2028 1. 6 0.0 56D Sample C TV-SS-200A 0.0 0.0 System TV-SS-2008 0.0 0.0 57A Leakage Monitoring C TV-LM-100G TV-LM-100H 0.0 0.0 0.0 0.0 e 578 Ora in C TV-DA-203A o.o 0.0 System TV-DA-2038 57C Leakage C TV-LM-200E 0.0 0.0 Monitoring TV-LM-200F 0.0 o.o 2 of 5

• Type Equipment/Valves ATTACHMENT 4A (Cont)

Prerepa i r Postrepa i r

• C" Pe net ration Test Tested Leakage ( scfh l, Leakage ( scfh l, MR No., Repair 57D Sample C TV-SS-204A o.o 0.0 System TV-SS-204B 0.0 0.0 58 Instrument C 2-IA-868 o.o* 0.0 Air 1-IA-704 0.0 0.0 60 Safety C MOV-2890A 0.0 0.0 Injection 61 Safety C MOV-2890C 0.0 0.0 62 Injection Safety Injection C MOV-2890B 0.0 0.0 e 63 Containment C 2-CS-24 0.0 0.0 Spray MOV-CS-201C,D 0.0 0.0 64 Containment C 2-cs-13 0.0 0.0 Spray MOV-CS-201A,B 0.0 0.0 66 Rec i rcu lat ion C MOV-RS-255B 1. 0 1. 0 Spray 67 Safety C MOV-2860B 0.0 0.0 Injection 68 Safety C MOV-2860A 1.4 1. 4 Injection 1*

69 Rec i rcu lat iorr C MOV-RS-255A >40 0.0 S2307300730 Adjusted valve stroke Spray

-1 70 Recirculation C 2-RS-11 0.0 0.0 71 Spray Recirculation Spray C

MOV-RS-256B 1-RS-17 0.0 0.0 0.0 0.0 e MOV-RS-256A o.o 0.0 89 Air Ejector C 2-VP-12 0.0 0.0 Discharge TV-SV-202A 0.0 0.0 90 Ventilation C MOV-VS-200C 0.0 0.0 MOV-VS-200D, 201 0.6 0.6 3 of 5

Penetration Type Test Equipment/Valves Tested Prerepa i r ATTACHMENT 4A (Cont)

Leakage ( scfh l, Postrepa i r Leakage { scfh l, MR No., Re1:1a i r 91 Ventilation C - MOV-VS-200A 0.0 0.0 MOV-VS-200B, 202 1,35 1. 35 92 Containment C TV-GW-204 0.0 . 0.0 Vacuum TV-GW-205 0.0 0.0 TV-CV-250C 12.0 0.0 TV-CV-250D 7.0 0.0 93 Containment C TV-GW-200 0.0 0.0 Vacuum TV-GW-201 0.0 0.0 TV-CV-250A 0.8 0.0 TV-CV-250B >40 0.0 S2307030023 Lapped seat 94 Containment C HCV-CV-200 0.3 0.0 Vacuum 2-CV-2 0.5 0.0 97B Sample C TV-SS-203A 0.0 0.0 System TV-SS-203B 0.0 0.0 97C Leakage C TV-LM-200A 0.0 0.0 Monitoring TV-LM-200B 0.0 0.0 100 Gaseous C TV-GW-206 0.0 0.0 Waste TV-GW-207 o.o 0.0 101 Fi re C 2-FP-151 0.0 0.0 Protection 2-FP-152 o.o 0.0 103 Reactor C 2-RL-3 0.0 0.0 Cavity 2-RL-5 0.0 0.0 Purification 104 Reactor C 2-RL-13 0.0 0.0 Cavity 2-RL-15 0.0 0.0 Puri f i cat ion 105B Leakage C TV-LM-200C 0.0 0.0 Monitoring TV-LM-200D 0.0 0.0 105C Post C TV-GW-211A 0.0 0.0 Accident TV-GW-211B 0.0 0.0 Sampling 106 Safety C 2-Sl-73 0.0 0.0 Injection 4 of 5

Penetration Type Test Equipment/Valves Tested Prerepa i r ATTACHMENT 4A (Cont)

Leakage { scfh l, Postrepair Leakage { scfh l, MR No., Re~air f.

112 Instrument C TV-IA-201A 0.0 0.0 Air TV-IA-201B 0.0 0.0 113 Safety C 2-Sl-174 0.0 0.0 Inject ion MOV-2869A 0.0 0.0 Personne I B o-r i ng 0.0 0.0 Air Lock Equipment B o- ring 0.0 o.o Hatch Fuel Transfer Tube Emergency B

B 0-r i ng o-ri ng

3. 1 0.0

3. 1 0.0 e1 Air Lock Al I electrical penetrations and other Type B penetrations were tested prior to performance of the CILRT with a combined leakage of 0.052 scfh.

e 5 of 5