ML19224B279

Final Rept, Sys Description:Nuclear Sampling Sys, Ref Burns & Roe Drawing 2031,Revision 10

ML19224B279
Person / Time
Site:	Crane
Issue date:	02/28/1976
From:	Metropolitan Edison Co
To:	Mullinix W NRC/IE
References
TM-0293, TM-293, ZAR-760228-1, NUDOCS 7906140359
Download: ML19224B279 (37)

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,s..:- y-h~ _ ^ C FINAL ~~ ' SYSTEM DESCRIPTION (Index No. 25) NUCLEAR SAMPLING SYSTEM (B&R Dwg. No. 2031, Rev. 10) JERSEY CENTRAL POWER & LIGHT COMPANY THREE MILE ISLAND NUCLEAR STATION UNIT NO. 2 Issue Date February, 1976 Prepared by: J.B. Hooper Burns and Roe, Inc. 700 Kinderkamack Road

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~,, - TABLE OF CONTENTS FOR NUCLEAR SAMPLING SYSTEM Section_ Pace

1.0 INTRODUCTION

1 1.1 System Finictions 1 1.2 Summary Description of System 2 1.3 System Design Requirements 5 2.0 DETAILED DESCRIPTION OF SYSTEM 9 2.1 Components 9 2.2 Instruments, Controls, A la rms, and Protective 15 Devices 3.0 PRINCIPA L MODES OF OPERATION 18 3.1 Startup 18 3.2 Normal 19 3.3 Shutdown 25 3.4 Special or Infrequent Operation 25 3.5 Emergency Operation 25 4.O HAZARDS AND PRECAUTIONS 26 4 196 150 e e

f"~ " ~ - wW.'. ~: ' APPENDIX I . '.~. sK; -._ t Title Table No. Sample Points and Analysis 1 Instrumentation and Controls 2 Panel Mounted Annunciators and Computer Inputs 3 t e e 196 151 m, m- .em o

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1.0 INTRODUCTION

~ l.1 System Functione The function of the Nuclear Sampling Oystem is to provide the ~ meanc to obtain representative liquid and gas samples from nuclear systems. The analyses of these samples are used to determine the performance of the nuclear plant, components and systems. The Nuclear Sampling system provides-for obtaining samples remotely or locally. Local camples are limited to locations where heat traced lines would be required, where resin must be sampled, or where sample frequency is very low. where radioactivity is high, shielding is provided for local sampling. The remote sampling system permits samples to be taken from locations which require frequent sampling to reduce sampling time and the number of operating personnel. The remote sampling system functions to route the radioactive samples to a centralized location where the samples can be analyzed and/or transferred to containers. All remote samples are taken under controlled conditions to limit the spread of radioactivity. The system is shielded where necessary. The remote system also provides for the controlled routing of purge, flows to associated systems. The Nuclear Sampling System provides the means for conditioning the sample prior to collecting, such as cooling, depres-16 suriz ing, and reducing N activity by the use of delay coils. 196 152 _1_ .g. ?

ar~ap tLIM - G 7 - e T x;- : m$ s~ ~,1. 2 Summary Description of System (Tiefer to B&R Dwg. 2331, Rev. 10) Sample points and their locations in the various systems are shown in Table 1. The sample hood for Unit 2 is located in the Unit 1 Nuclear, Sampling Room located in the Unit 1 Control Tower. This location permits the analysis of samples from the sample hoods for Unit 1 and 2 to be performed in the adjacent Radiochemical Laboratory. As many sample lines as possible are routed to the sample hood to minimize the number of operating personnel and reduce sample time. Sample lines are routed separately to prevent cross contamination. All liquid and steam samples routed to Ehe hood (except the steam generator samples) are purged to the Unit 2 miscellaneous waste hold-up tank or the ma) 3-up tank to prevent gross activity from entering the Unit 1 systems. The driving force to move the samoles is achieved either by the normal operating pressure in the system being sampled or by the use of system recirculating pumps and flow control valves. A cooler is provided adjz ent to the sample hood for controlling the temperature of the _ssurizer steam sample, pressurizer water sample, and the sample from upstream of the letdown coolers. These samples may be taken hot or cold, depending on the analysis desired. They can be collected in an in-l'ine sample container. The only other li~uid' sampiga .which an be taken in an in-line container are q tha samples from upstream of the purification demineralizers and from the dake-up tank water epace. All'other liquid samples ~ are taken as grab samples, although all of the above may a7.so be taken as grab samples if desired. Grab sample overflows and steam generator purge liquids are directed to the sample sink ~ in the sample hood from where they flow to the Unit 1 Auxiliary Building sump. The sample hood containa an in-line sample ^ =7 cm .c 196 153

-~ -- "mW_ : =X ~. - f ~. _: - -r -q ~ jypf container for takting a gas sample from the make-up tank gas space. During purging, the gas vents to the Unit 2 vent header. The sample hood vents to the Unit 1 Auxiliary Building ventilation Exhaust. .g, containment isolation valves are operated from the Unit 2 Control Room (Containment Isolation Panel No. 15). Where pressure -to move a sample is obtained by the use of a re-circulating:. pump, the controls needed to operate the valves in the system, operate the pump, throttle the pump discharge valve to develop pressure, and operate the sample valve, are all located in Unit 2. To obtain these samples, the sample hood operator must contact the Unit 2 operator. Valves at or neer the sample hood are all manually operated. Drag valves are supplied to reduce pressure. Pressure and temperature instruments and flow meters at or near the hood are read locally. 7 The steam generator samples are cooled in heat exchangers located in the Unit 2 Secondary Plant Sampling Room. The samples tre normally taken in the Unit 2 secondary sample hood in Unit 2, but can be diverted to the Unit 1 NMc_1_ ear Sampling Room in Unit lf. System valves controlling the flow V of liquid are operated from the CA (Chemical Addition) Panel in the Unit 2 Auxiliary Building. Manual valves used to ob-tain flow of the sample in the Unit 2 Secondary Plant Sampling Room are operated at that location. Pressure and temperature are read locally. A gas analyzer is provided in the Unit 2 Auxiliary Building for the purpose of determinfing the 0 and H content of gases 2 2 in various tanks and the vent header. This is done to warn of ~ 196 154 m;. O -. -

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-,y e. EC -r n., explosive coracentrations. Advantage is taken of the routing of these lines to a common point by also providing an in-line sample container for the purpose of collecting a gas sample for determining radioactivity and gas composition. A ventila!'- tion exhaust hood prevents release of radioactive gas to the surrounding area during handling of the in-line container. The gas is moved to the analyzer (or through the in-line container) with a self-contained gas pump' Gas passing through the analyzer or the in-line container is released to the Unit 2 vent header. Solenoid valves actuated by an automatic sequencer permit semi-continous 0 and H determinations to be 2 2 made on selected tanks and the vent header. Alarms for low flow and high 0 and H ncentration are provided. 2 2 Local liquid samples are taken from the reactor coolant evapora-tor feed tank, concentrated waste tank, and reclaimed boric acid tank to avoid running heat traced lines to the sample hood in Unit 1. A local liquid sample is taken from the spent resin storage tank to avoid running a long line containing resin, with the at endant plugging problems. Local liquid samples are also taken from the contaminated drain tanks due to low sampling frequency. Local samples are purged to a container or a local drain collection point to clear the lines before sampling. All liquid and gas samples collected in containers are analyzed as described in the TMI Water Chemistry Manual for the purposes and at frequencies described therein. Sample lines are routed to minimize the radiation exposure to personnel. Shielding is provided where required. Consideration ) is given to the buildup of activity during plant operation in the routing and shielding of the lines. No local shielding is provided at the semple hoods or the gas analyzer, since these are specific work. stations where adequate control of)qppso ~ 70 J -2 v. A. y

crc >.. - ee ... ? __, _.e ( - 7,: T. exposure can be maintained. The sample hoods and gas analyzer gg are located in shielded areas. ~ Some samples are transferred from the system being sampled to_ the sample collection point by means of the higher pressure inherent in the system. Such samples are transferred by simply opening the appropriate valves in the sample system. Other samples are transferred by the operation of a pump and valves in the system being sampled to create flow in the sample line. This is required, for example, when samplie ae contents of a tank. In such cases, the sample point in the system is located between the recirculation pump discharge' and a throttle valve. The valve is kbpt open during tank recircula-tion, then throttled to increase system pressure sufficiently to transfer the sample at the desired flow rate. Throttling the system valve permits continued recirculation during the sampling operation. ( Throttle valve settings are established d ring preoperational plant tests, based on flow in the sample u {\\ lines as read on the flow indicators in.the purge return / (lines [These settings will be used during plant opera tions. 1.3 System Desian Requirements The Nuclear Sampling System is designed on the basis of the following requirements: a. Permit representative samples to be obtained from selected points ~in the~ nuclear plant during normal operation, startup, shutdown, and emergency operation. b. Provide the means to cool and depressurize samples where required. {? . ~

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All system piping is to be of stainless steel and is classified as Nuclear Piping (Symbol N), designed, fabricated, inspected and erected in accordance with ANSI B31.7 Nuclear Power Piping. The seismic require-ments of Class I apply to the entire system, except for the sample basin drain pipe and SN-R1 and SN-R2 discharge piping to the Unit 1 Auxiliary Building sump. f. System design pressure and temperature are as follows: (1) All piping, valves and components of the steam generator sampling points SN1 and SN2 meet the design conditions of 1050 psig and 600 F. (2) All.. piping, valves and components of the primary coolant sampling points SN3, SN4 and SNS meet the design conditions of 2500 psig and 670 F up to the valves SN-V8, SN-V163 and SN-V176. The purge return line from the Unit 2 sample hood to up-stream of the Unit 2 make-up tank is designed for 150 psig, 200 F, starting downstream of SN-V8, SN-V163 and SN-V176. Design conditions for the -2 sample container (SN-S-2 ) exceed these conditions {' since the cylinders are obtained to commercial standards. 196 157 m -(-

L w L:_q D - n..,....___ -~ ,7 -= M' (3) All piping, valves and components of the core flood-n- ing tank sampling point SN10 meet the design condi-tions of 700 psig and 300 F, up to the valve (SN-V169 ) upstream of the relief valve (SN-R2). The purge Eu return line from downstream of SN-V169'is designed for 150 psig, 200 F. This line leads to the Unit 2 miscellaneous waste hold-up tank. (4) All piping, valves and components in the decay heat removal cooler sampling point SNil meet the design ~ conditions for 250 psig and 300 F up to the valve (SN-V169) upstream of the relief valve (SN-R2). The purge ret.'rn line downstream of SN-V169 is de-signed as described in paragraph (3). (5) All piping, valves and components of the remaining remote sampling points meet the design conditions of 150 psig and 200 F. This includes all other lines leading to the Unit 2 sample hood and the purge re-turn lines leading from the hood to Ehe Unit 2 miscellaneous waste hold-up tank (SN6 to SN9, SN13, SN14, SN18 to 21 SN23 to 27, SN31 to 33, SN35, SN37 to 41). The design conditions for the sample con-tainer's (SN-S-1 and SN-S-3) exceed these conditions since the cylinders are obtained to commercial stan-dards. (6) All piping, vahres and components in the local li-quid sampling systems meet the design conditions of the system with which they are associated. ? ~ ' I) ' ~ )96 158 = 4

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ev c, gas analyzer sampling systen meet the design condi-tions of 150 psig and 200 F. (SU15, 16, 17, 22, 20, 29, 30, 34, 36). The design conditions for the sad - ple container (SN-S-4) exceed these conditions since the cylinder is obtained to commercial standards. g. The frequency of sampling and the analysis to be performed on each sample is described in the Three Mile Island water chemistry Manual. The samples lines are sized to provide for turbulent flow during purging (Reynolds number above 4,000) to obtain a representative sample. The system is designed to per-mit purging five times the volume of the sample line (be-tween the sample point to the sample collection point) in a period of about five minutes. Actual sample times are based on line sizes and crud buildup considerations. Sample connections on pipes or tanks are located to ob-tain the most representative sample possible. The con-nections are not located where crud buildup is considered likely. No sample probes are provided since fluid velo-city in the system and fluid velocity in the sample line at the point of connection to the system permit sufficiently representative samples to be obtained. Routing of the sample lines avoids traps, dead legs, dips and sharp bends wherever possible. 2 2 ~ e. e a M l-. 196 159 .. ' s!' = n.- = O e-,-=%w O

g %.... ~ m m T@ CfEEP"? ? r. 1 < ? ..= l ..v : ; w.y. r g 2.0 DETAILED' DESCRIPTION OF SYSTEM mt 2.1 components 2.1.1 Sample Hood The sample hood provides an enclosure to control the release -7 :. of radioactivity to the sampling room during ccllection of the sample. The hood is vented to the Unit 1 Auxiliary Build-ing Ventilation Exhaust System. Ventilation flow into the open hood is 150 SCFM minimum. A door is provided in the hodd. All manual valves in the hood are operated by reaching into the hood, with the exception of the three-way line vent valves SN-V6 and SN-V109 to sample container SN-S-2. These valves have ex-tensions to permit operation from outside the hood. This per-mits venting the high pressure with tne hood closed. Manual isolation valves are located in all sample lines outside and adjacent to the hood. Three sample containers are contained within the hood (SN-S-1, SN-S-2, SN-S-3). A sample sink is pro-vided to collect spillage from all operations conducted in the hood and also collects the liquid usdd to flush the sample lines from the hood isolation valves to the sample col.1ection point. Demineralized water from Unit 1 enters the hood for flushing the sample bottle and the sample sink and for cooling sample container SN-S-2.. Vertical clearance is provided be-tween the sample collection points and the sink for one'. liter sample bottles (at least ten inches). The sampling sink is designed with a ten inch widetray below the sample collection piping at the sample basin. This tray is used to place the sam-ple bottles on during sampling operaticns. Sample points SN1 and SN2 are purged to the sample sink. The sink drains to the Unit 1 Auxiliary Building sump. Samples from SN3, SN4 and SN5 are purged to a point upstream of the e ...t., e i _e 196 160 1.

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,. ~. - f-. ~ W.ZTCSC 1,, - J' ' '."f j.v,. __.--;,. - = - - - ~,, - ~ Urit 2 make-up fil,ters via a single line leading from the E_ sample hood. All other liquid samples are purged to the Unit 2 miscellaneous waste hold-up tank via one of two lines leading from the sample hood. The use of two return lines permits sampling from two sample points simultaneously. A line connecting these two purge return lines permits use of either line if one of the, lines gets plugged or if work must be per-formed on a flow indicator or pressure indicator in one of the lines. Specific separation of purge lines was done for the following samples: a. SN5 (Upstream of Letdown Coolers) and SN6 (Upstream of Purification Domineralizers) - SNS purges to the make-up tank, SN6 purges to the miscellaneous waste hold-up tank. This is done to check the condition of coolant of both points at the same time. b. SN6 (Upstream of Purification Demineralizers) and SN7 (Purification Demineralizer Outlet) - Both samples purge to miscellaneous waste hold-up tank via two separate purge lines. This permits wa ter analysis and decontaimina-tion factor (DF) determination across purification demineralizer at one time. c. SN13 (Spent Fuel Demineralizer Inlet) and SN14 (Spent Fuel Demineralizer Outlet) - Both samples purge to the miscellaneous waste hold-up uank via two separate purge lines. This permits water analysis and decontamination factor (DF) determinatinn across spent fuel demineralicer at one ti.me. d. SH2O (React.or C'colant Evaporator Outlet) and SN23 (Evaporator Condensate Demineralizer Outlet) - Both hold-up tank via samples purge to miscellaneous vu a 196 161 . E. !. %iK-{.* .m, ?-.... 3,f n,. _39_ m gma = = - * - ^

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h' twoseparatehurgelines. This permits water analysis ~ and decontamination factor (DF) determination across evaporator condensate domineralizer (WDL-K-34) at one time. e. SN20 (Reactor Coolant Evaporator Outlet) and SN24 (Evaporntor Condensate Demineralizer Outlet) - Both samples purge to miscellaneous wante hold-up tank via twc separate purge lines. This permi.9 water analysis and decontamination factor (DF) determination across evaporator'condensat demineralizer (WDL-K-3B) at one time. f. SN7 (Purification Demineralizer Outlet) and SN27 ($')eborating Demineralizer Outlet) - Both samples purge to miscellaneous waste hold-tank via two separate purge lines. This permits water analysis and decontamination factor (DF) determination across deborating domineralizers at one time. All other samples were divided between the two purge return lines for convenience, as shown on B&R Dwg. 2031. 2.1.2 Samole Coolers The pressurizer sample cooler (SN-C-1) is located in the Unit 1 Sampling: Room. This cooler may be used to cool samples from the pressurizer steam and liquid space as well as samples from upstream of the letdown coolers. Normally, samples from 6 .m .,. ^ _r.

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.:w. - ~w M.3TCC,. -~ ~ .a m..n h, the ressuriter vapor space will not be cooled while sampling. This Will permit obtaining representative samples from the pressurizer. F.~. Steam generator sample coolers (SN-C-2A and 2B) are located in the Unit 2 Secondary Plant Sampling and Instrument Room and are used to cool steam generator samples prior to sampling. The sample coolers are shown on the manufacturer's drawing (Whitlock Mfg. Co. H-26268). 2.1.3 Sample Containers There are four in-line sample containers in the Nuclear Sampling System. The containers are used to co1&ect gas and/or liquid samples as described below: a. SN-S-1; Make-Up tank gas b. SN-S-3; Make-Up tank liquid sampla or upstream of purification demineralizers. c. SN-S-4; Gas samples to gas analyzer d. SN-S-2; pressurizer and upstream of letdown cooler-Each container has a capacity of 150 ml, is designed for 600 F and 400 psig and is made of 304 SS, with the exception of SN-S-2, which is designed for 600 F and 5000 psig and is raade of moteli These samples are collected in..line and then the e ? 9 as '.F ._p 3.,

p u,-- .... } wm42_+%2 7 = w sk,.. '... W;;;..-. --..- f..:l.7, -.- ; . A r --- _,,, ~ ~ sample containers are removed so that the contents of the con- "~ tainers may be analyzed in the Radiochemical Laboratory. ~ T 2.1.4 Gas Pump (SN-P-1) The gas pump is used to pump analyzed gas to the vent header and in doing so maintains analyzer outlet pressure within + 5 inches (water). The gas pump motor is 120V, single phase AC, powered from AC distribution panelMP-2-46. The pump has a capacity of approximately tlree CFM and is a bellows type pump (metal bellows pump). In addition, the pump is operated prior to removing the sample container (SN-S-4) from the piping to avoid release of radio-active gas to the surrounding area when breaking the sample connection. 2.1.5 Gas Sampling Ventilation Hood A canopy-type ventilation exhaust hood is provided over the gas analyzer sample container to control the flow of radioactive gases which may be released during container handling. This hood exhausts.to the Auxiliary Building exhaust duct. The Unit 2 sample hood, located in Unit 1, is exhausted to the Unit 1 Auxiliary Building Exhaust System. This exhaust limits the release of radioactive gases when sampling opera-tions are performed in the sample hood. g J '.,'

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. u :ic.:m..:2, .~,...... ~. -~ ~ me==rn*We af '_;M..,,.,,.u.. M; --e.. u w 1 J.. c Delay Coll (S N-Ug' galse - A delay coil is provided in the saniple line from upstream of the letdown coolers. The coil is located in the Reactor ~ Building in an area chosun _o reduce radiation exposure to personnel. The coil, plus the length of sample line in the Reactor Building permits the N to decay adequately by the time it reaches the outside of the Reactor Building. The a transit time to long coil plus the sample line provides the sample hood of 24.9 seconds. Velocity of the liquid is limited with a drag valve. 2.1.7 Maior System Valves Gas Pump Pressure Regulating Valve (S N-V160) This valve is a 150 psig, 200 F, 1/2 inch, staidless steel, air diaphragm operated pressure control valve. It - used to maintain the suction pressure of the gas pump and hence the outlet pressure of the gas analyzer. Reactor Buildina Isolation valves The below listed valves are used as Reactor Building isdlation valves to the Nuclear Sampling System: a. CA-V1, from pressurizer vapor space b. CA-V10, reactor building isolation c. CA-V3, from pressurizer liquid space d. CA-V4A, B, reactor building isolation from steam generator e. CA-VSA, B, reactor building isolation from steam generator f. CA-V6, frc, upstream of the..' letdown coolers e ~= 1 i 1 t . 41. .~

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%g.. I ~ L b d C TG*f N'?f. yyj~-- gn:- p. I, s ~ ~.; ~ ~ ~. - - W '2 Instruments, Controls, Alarms, and Protective Devices n,%:~ - 2.2.1 Gas Analyzer (WDG-G-1) The gas analyzer for Unit 2 is supplied by the Hays Corporation, Michigan City, Indiana, through B&W. The analyzer is shown on Hays Drawing B59065-D, C59066-F and C59067-F. A detailed description of the analyzer is found in the Hays Instruction Book (07.21). Panel Mounted Annunciators and Computer Inputs are associated with the gas analyzer as described in Table 3. The following aspects of the gas analyzer are noted for general information: a. Zero calibration gas and span calibration gases are obtained from three separate Type lA gas bottles located near the gas analyzer. The zero calibration gas bottle contains nitrogen. The span calibration gas bottles consists of one bottle containing 3% oxygen in nitrogen and one hottle containing 3% hydrogen in nitrogen. b. The calibration gas is vented to the Unit 2 vent header to control contamination which may be released from the gas analyzer during calibration. Such release could occur from the moisture separator, filter, or other components at any time during calibration. The gas analyzer will also vent to the Unit 2 vent header during normal operation to control the flow of radio-active gases to a system that is designed to handle them. 4 N

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m ~" ~ _ _ ~ -i~.:=5.l^.1%: -.~ 2': 1-3:%' - ^* 7 h,"4 79. AL. cf._. JT.".. o 0 w%C ~~ w For' proper oppra tion, the conditions at the two gas c. ~@' 1-analyzer vent connections (calibration gas vent and normal operating vent) must be kept nearly constant ~ (to within i 5" water column). Pressure at the vent ~~ connections must be essentially atmospheric, with a range of 0 psig to 2 psig being acceptable. Since the pressure in the Unit.2 vent header can vary more than 5" water column during plant operation, a gas pump (SN-P-1) is located between the two gas analyzer vent connections and the vent header to maintain the desired condition at the connections. The gas pump and local controls are mounted adja' cent to the gas analyzer. The gas pump also provides the means for purging the sample lines on either side. ;. the gas sample container (SN-S-4) prior to breaking the connections during removal of the cylinder. This prevents radioactive gas from being releaned to the room. d. When 0 rH content exceeds 3%, an alarm.sounda. on 2 2 the Gas Analyzer Panel and Radwaste Panel 302B. A trouble alarm is also provided on the Coolant Systems Monitoring Panel No. 8 in the Control Room from the Radwaate Panel. content is received continuously in the e. The 02 and H2 analog computer. f. A low gas flow alsrm is provided on the Gas Analyzer Panel ar.d on Radwaste Panel 302B. k + 3 4 s.t.- j., .~ .. - -q.1; = r.z[ ~_.. s-- .. b : y :q : g.., .9-

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-w.> -s ~M. + P M.t % '..x.. n. ~... ,-7 ~~- g;.g[ ' g. All'~ sample 1ines leading to the gas analyzer remain arr,.- open to permit gas flow to be controlled by the solenoid valves within the unit. These valves are automatically operated in sequence to permit gas flow for 6 minutes for each sample point. The timer which operates the solenoid valves may be adjusted in one minute intervals to provide varying sample times. h. When obtaining a gas sample in the sample container (SN-4-4 ), the O-and H analyzer p rti n f the unit is 2 bypassed, and all the flow from a selected sample line is purged through the container. The gas pump in the analyzer continues to be the method by which gas is moved in zhe systen. i. Except as noted above, the gas analyzer cont.c as all its own instruraents. controls, alarms and protective

devices, additionally, any alarm on the Gas Analyzer Fanel also alarms on Radwaste Panel 302B which initiz.tes a trouble alarm on Coitant Systems Monitoring Panel No. 8.

2.2.2 Pressure, Temperature, and Flow Instruments All instruments in the Nuclear Sampling System are indicated locally except for the flow indicators on the cooling water flow from the steam generator sample coolers in the Unit 2 Secondary Plant Sampling Room. These flow indicators are located in the Unit 2 Secondary Plant Sampling Room. For samples SN1 through SNS, taken at the sampling hood, pressure and temperature instruments aref. located for local readout. Flow indicators are read daring the purging of the samples SN3, SN4, SN5, and SN8 to insure that the purge flow has occurred to obtain a representative sample. Flow and pressure are also indicated for each purge re2 urn line. ,L e: n ~. ' u.,it; < i n. g. - - <. w ; u. a. & :..., c. --x- . s- -n .... ; 4 =,.- ,ni I70 l00 _17_

y.-- ?MMQQ."%iw;.. + ,p. --;; u.... m n. y - -e Valves 7; g.. 4..$ Table 1 identifies the valves which must be open to purge the the sample lincs and collect the scaples. Containment isola-tion valves are identified under 2.1.7. Check valves are provided in each purge line connected to return lines to Unit 2. This prevants cross contamination and . uncontrolled flow into the sample hood if manual valves are left open. Valves and piping associated with in-line sample containers permit contx711ed reduction of the system pressure at the sample cont.ainer connections. This prevents exposure of operating personnel to radioaciive liquid or gas during breaking of the connections. Needle valves are provided in high pressure. sample lines to reduce pressure and control flow rate. 2.2.4 Protective Devices Relief valves are provided, where necessary, to protect piping. 3.0 PRINCIPAL MODES OF OPERATION 3.1 Startuo 3.1.1 Remote Sampling at Sample Hood Yhe following steps are taken prior to sampling: a. Verify that all manual valves in Unit 2 are in their proper position for ~ recirculatien and sampling. Since some of.these valves are loc '.v ' 4 the Reactor Building, proper position of these " .t be 'rerified prior to plant startup. T 9 . **i g sew - a 1. ;,la.. .s ...c,,.. r 7.

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~mmx t:, u.-l ii.1 :,,,'. _,.-%;r7 m:B.- e ~ 4"' ~ ~.- b. Verify that the sample hood is properly ventilated. Verify that the sample basin drain line is open. c. d. Verify that cooling water is flowing through appropriate sample coolers (by flow indicator or valve line-up). ~ Verify that clean sample containers are placed in' their e. designated locations. 3.1.2 Remote Gas Sampling at Gas Analyzer The following steps are taken prior to sampling: Verify that all manual valves are in their proper a. position for automatic sampling to be performed. b. Start the gas pump, c. Calibrate the hydrogen analyzer and oxygen analyzer with zero and calibration span gas. d. Verify that a clean sample container is in place. 3.1.3 Local Samoling Local samples are obtained by opening the appropriate manual isolation valves and collecting these liquid samples in a container (i.e., poly bottle). 3.2 Normal Operation Normal sampling operations for all the sample points are described in the following paragraphs. 3.2.1 SN1 and SN2 Steam Generator Secondary Side Each steam generator has two sample connections, only one of which is used for normal operation. The one nearest the bottom of the down-comer is usually chosen. The manual valves which control the flow from the upper or lower sample point _] must be selected prior to reactor operation, since they'are located within the secondary shield and inaccessible during ~ ~ e .. i~ ., ~-- 196 170 ~ Y: ~. y- - - g-:.;, 4 _19-

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_ reactor operatio.n, Remote isolation valves (CA-V4A and V4B and CA-VSA and VSB) are controlled from Containment Isolation Panel No. 15. 9' 3.2.2 SN3 Pressurizer Steam SpMe The sampl'e line valve (RC-Vil7) adjacent to the pressurizer is a normally open electrically operated valve. It is operated from the panel at the Unit 2 sample hood in the Unit 1 Nuclear Sampling Room. To enable a steam sample to the collected in the sample container (SN-S-2) at the pressurizer pressure-temperature, 3/8" tubing has been provided from the containment isolation valve (CA-V101) to a point immediately upstream of the sample cooler (SN-C-1). This, tubing :is covered

• with 2".of. insulation.

Before removing the sample container from the sample hood, the container is cooled sufficiently to handle it by pouring wa ter over it. The cooling water is supplied from the demin-eralized water line in the hood. 3.2.3 SN4 Pressurizer Water Sample Sample line valve RC-V122 performs a function similar to RC-Vll7 in the sample line from SN3. 3.2.4 SNS Upstream Letdown Cooler Sample Sample line valve RC-V123 performs a function similar to RC-Vil7 in the sample line from SN3. t The sample container can be cooled as described for SN3 when a hot sample is taken. 1 r+ r. * ~ '" c h.. _ ~ 4?. ,'d,;,,f. K ', *' ~20- ~.. -m 196 171 -~ e

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w ,.. ~. ~ hh!'* h. - ". r L.. p~y .-m.- "'7-The delay coil ', (SN-US) is located within the Reactor Building to ' delay the flow to allow for N delay. ~ 3.2.5 SN8 Make-Up Tank Gas Space Sample 's Short lived'. radioactive isotopes are of particular interest in this sample. With a gas pressure in the make-up tank of 15 psig, the transit time to the hood is 4 seconds, based on a 1/2 inch line and sample velocity of 110 ft/sec. This velocity should be verified during initidl sampling, since xnowing the transmit time is essential to a satisfactory gas. analysis. 3.2.6 SN9 Make-Up Tank Water Space Samole In addition to the normal grab samples, water from this space may also be analyzed for dissolved hydrogen. To accomplished this, the sample is diverted to the sample container normally used for the sample (SN6) from upstream of the purification demin-eralizers. 3.2.7 SNll Decay Heat Removal Coolers Samples from SNil are normally used during reactor shutdown conditions and during refueling operations. Samples can also be taken during periodic testing of the system, at which time the water in the borated water storage tank could be sampled from this point. SNil is also used to sample water from the Reactor Building sump in the event of a LOCA. 3.2.8 SN14 Spent Fuel Filter and Demineralizer Outlet This sample p'oint, in addition to its normal functions, is also used to sample the borated water storage tank when recirculating e ~ .~ . 4;.. l 5- '}' } "- ~ }_ b }fL9

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• S the water with the borated water cecirculation pump.

During such operation, valve SF-V168 is throttled to obtain flow of ~ the sample to the sample hood. 3.2.9 SN39 Concentrated Waste Tank, SN40 Reclaimed Boric Acid _ Tank, SN41 Spent Resin Storace Tank, and SN21 Reactor Coolant Evaporator Feed Tank These are local samples which are taken from sample lines ex-tending through shield walls. Manual valves in each line which control sample flow are located inside the shielded area and are operated by extension handles which penetrate the shield wall. 'nese sample points are located so that the system recirculating pumps provide adequate pressure to permit drawing the sample by throttling the system flow downstream of the pump. 3.2.10 SN31 and SN32 Contaminated Drain Tanks There are local samples at each tank through a manual isolation valvo. These sample _ points are located so that the system recir-culating pumps provide adequate pressure to permit drawing the sample by throttling,the system downstream of the pump. t 3.2.11 All other Liquid Samole Points The following sample arrangements are all similar in that all samples approach the sample hood through a 1/2 inch valve and pipe, which is reduced to 3/8 5.nch, past a branch to the purge return line, through 3/8 inch manual isolation valve and then through a 3/8 inch needle valve into the sample basin. The purge linesseach contain a 3/8 inch manual isolation valve and a k .J - q' ~ o ^ ... s - R 3...h _ r k~ Q w ,. m y;;

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? Orw+cs.i!.*-fMG ? 6T = = qi.&,~ c. : u:.V.'(.b:.G~l ' . L ~ pg.lre .V8 inch ~ check valve and all return to the Unit 2 miscellaneous e.=., waste hold-up tank. Samole Point Location SN6 Inlet to purification demineralizers SN7 Outlet of purification demineralizers SN10 Core flooding tanks SN13 Inlet to spent fuel'demineralizer SN14 Outlet of spent fuel demineralizer SN18 Waste transfer cumps discharge SN19 Out'let of clean-up demineralizer SN20 Reactor coolant evaporator outlet SN23 Outlet'of evaporator condensate demineralizer (WDL-K-3A) SN24 Outlet of evaporator condensate demineralizer (WDL-K-3B) SN25 Evaporator condensate tesi tank (WDL-T-9A) SN26 Evaporator condensate test tank (WDL-T-9B ) SN27 Deborating demineralizer outlet SN33 Auxiliary Building sump tank SN35 Miscellaneous waste hold-up tank SN37 Neutralizer tank (WDL-T-8A) SN38 Neutralizer tank (WDL-T-8B) 3.2.12 Gas Samples to the Gas Analyzers The following sample arrangements are all similar in that all samples pass through a 1/2 inch pipe, through a 1/2 inch manual isolation valve and into the gas analyzer. e -I y .e 5 $e+ p=j. 2 'f -- ~ '. - ' ~ ~ 'l 9 6 } ~/ 4 ~- ..~- ~.~- -; -

w,_ a_ e .' a'~mw gir_m~rs- ~ ,.26. w_ .=~;- r= {' Sample Point Location SN15 Reactor coolant bleed hold-up tank (WDL-T-1A) SN16 Reactor coolant bleed hold-up tank (WDL-T-1B) SN17 Reactor coolant bleed hold-up tank (WDL-T-lC) SN22 Reactor coolant evaporator SN28 Waste gas decay tank (WDG-T-1A) SN29 Waste gas decay tank (WDG-T-1B) SN30 Vent header SN34 Auxiliary Buildirg sump tank SN36 Miscellaneous waste hold-up tank All gas leaving the gas analyzer passes through three 1/2 inch pipes to the gas pump or through a 1/2 inch pipe to sample container SN-S-4. Gas to the gas pump '. eaves the gas analyzer through a 1/2 inch pipe from the analyzer elements or a 1/2 inch pipe which bypasses the elements. These two pipes join, and pass through a 1/2 inch manual isolation valve (SN-V159) into the gas pump suction. A third pipe, the calibration gas vent, leaves the analyzer through a 1/2 inch pipe, through a manaul isolation valve (SN-V157 ) and joins the analyzer element outlet pipe at the suction of the gas pump. Another pipe that enters the suction of the gas pump is frcm sample container SN-S-4 disconnect piping through a 1/2 inch manual isolation valve (SN-V156). Gas leaving the gas pump passes through a 1/2 inch pipe and 1/2 inch diaphragm pressure regulating valve SN-V160 to the Unit 2 vent header. .~ e 1 -L ~ 4 e - -

_m..<.~. - g. w %,G- %st - j _ 6 2 % ~~b._- 7-. - J.p-' 1 Nb The gas leaving tee gas analyzer to the sample container pasees through a 1/2 inch pipe w'c.ich contains a 1/2 inch manual isolation valve (SN-V152) past a branch to the gas pump suction, and is reduced to 1/4 inch pipe before passing ;, through a 1/4 inch manual isolation valve (SN-V153 ) and into the 150 ml. sample container (SN-S-4). Sample gas leaves the container through a 1/4 inch pipe, passes through a 1/4 inch manual isolation v41ve (SN-V154), a disconnect union, a pipe reducer, which increases the pipe to 1/2 inch, past a branch to the gas pump suction, through a 1/2 inch manual isolation valve (SN-V155), past a branch from the gas pump discharge and I goes to the Unit 2 vent header. ;A 1/2 inch sample container bypass line and valve (SN-V179) is also provided. 3.3 Shutdown Since samples are taken at the.: sample hood, at the gas analyzer, and locally during plant shutdown, scxne portion of the sampling system remains operabic at all times after initial plant startup. Plant systems that are shut down and do not require sampling may also have their respective sampling systems shut down after closing suitable valves and performing proper system isolation steps. 3.4 Special or Infrequent Operation Since samples from the sample hood or local sample points are taken manually, the frequency of sampling is a function of plant operating requirements. When it becomes desirable or necessary to obtain samples more frequently, there is a greater work load on personnel doing the sampling and the E. analysis, but the sample system itself is not affected. s s 9 e 'J - me e P ,4 n.., 196 176 n.e ~ w_4 " e

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_r.--." W' =Q The gas analyzer " system is designed so that, in addition to its normal function of automatically analyzing hydrogen and oxygen content, a gas sample can be taken manually in a sample c ontainer. - This, however, creates an interruption in the normal operation of the analyzer. 3.5 Emergency operation Samples are taken by the sampling systems during emergency There operations of the plant systems which they service. is no emergency operation of the sampling system itself. 4.0 HAZARDS AND PRECAL"TIONS The hazards associated with the Nuclear Sampling System are: a. High pressure b. High temperature High radioactivity c. d. Explosive mixtures of hydrogen and oxygen High pressure protection is provided to the system by the design of the system and by means of relief valves (SN-R1 and SN-R2). High pressure protection to personnel during grab sampling is provided by operator control of the downstream needle valve. High pressure protection to personnel during the removal of sample containers is provided by suitable valve lineup to releive the pressure at the sample contain r connections prior to breakir.g the connection. Pressure regulators in the gas analyzer and pressure indicators in sample lines advise the operator of system conditions. Valves which control the flow of the sample from the sample point to the sample hood should t. 4 ~ 196 177-a %K. r_ -u:.. _26 y .p -=w----

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~ ~ s. t. QZ_ *1 ~1-W +-~. =* }&}.' be opened only after all manual valves into the hood are lined up and shall be closed first after taking the sample. High temperature protection is provided by the sample coolersi Cooling water flow to the coolers is checked before sample flow is initiated. Temperature indicators are provided to advise the operator of sample conditions. Where high tempera-ture samples are required, special precautions for )perating manual valves in'the sample hood and for handling tl.e sample container must be taken. High radioactivity protection is provided by remote sampling from areas where radioactivity does not permit personnel access to the sample point during plant operation or plant shutdown.. Sample and recirculation lines are shielded where required or are located at sufficient distance from normally occupied locations to minimize personnel exposure. Crud buildup in sample lines increases the does rate over the life of the plant. The samole hood and the gas analyzer are located in shielded areas. Personnel working at these locations must work under controlled access conditions, since neither the hood, gas analyzer, or sample container is shielded. Radiation monitoring equipment is provided near these locations. Port-able health physics monitoring equipment may also be used during sampling. Shielding is provided at local sampling points; SN39 for the concentrated waste tank,,SN40 for,, the reclaimed boric acid tank SN41 s. for the spent resin storage y tank and,SN21 for the RC evaporator feed tank, to isclate personnel from::ithe radioactivity of the respective systems. ^ o e e 5g YQ l96 178 g -E 4

&e - C, - -meswqMrrir#"_C%T ". ._.u= 7., ] i2 "! -4 _, _ - g; During sampling5 rom these locations, personnel exposure is limited by the time required to draw the semple. Personnel exposure giuring transfer of the local samples to the Radio-chemistry Laboratory is limited by carrying the sample bottle ~ at arm's length, beyond arm's length with special tools, or in shielded containers, depending on activity levels. Similar precautions.a.re used for the transfer of the gas sample container from the Unit 2 gas analyzer to the Unit 1 Radiochemistry Laboratory and all other manual transfer of samples. Personnel exposure to radioactive liquids is minimized by the use of the sample hood, mainta'ining the valves and sample cylinder connections to reduce leakag.3, and control of the sample pressure during all operations by proper valve mdnipu-lation. Personnel exposure to radioactive gases is minimized by maintaining air flow through the Unit 2 sample hood and the sample canopy at the gas analyzer, proper valve and cylinder connection maintenance, and proper valve operation. Explosive mixtures of hydrogen and oxygen is selected tanks and the vent header are annunciated by *.he 3% hydrogen and 3% oxygen alarms provided in :he gas analyzar. Hydrogen content in the make-up tank gas spa ce is not monitored by the gas analyzer but is determined by periodic sampling at the sample hood. Caution is required during purging and sampling from this sample point. Since the gas collected in this container will contain high concentrations of hydrogen, pre =autions must be observed to prevent the possibility of explosion or fire. s. ~ 4 e e a'

ete e p yt : r .,.... e u;...... -.....e 3.*' ........_em. _._. .S.U8tNS ANO f. TOE. INC. / j ),. h was o., se.a n. e me C.se.cg 8ee Caag Ne a $heef of 8e Comt ee Aos. eves ~ 4, g , r ta - I I, h o I*ac I 1 l' 7, j {i ,h g saMP's porwTs aNo Anatxs rs !) sample Potat feelarten vale. Location f

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.i W operattne Coadttio*. Anatrols ,.if; f.s2 w Sul A t sv-v;04 s llA l ti..a 1A 5 team Generator i 1 i+ 900 450 Crab sample SM2 SV-4105 & lit 13 Steam Generatar 100 450 su3 8ic-ell? Crab Sample },*., Pressustaer vapor space 9 2185 650 sample Container y Crab sample SM4 mr-v122 Pressuriser Elquid space 2145 450 Sample Container 84 4C-V123 Crab Sample Upstream of letdown Coolers 2150 600 sample Contalmar Crab 8 ample T 3. I. two

1. eJ-v104 i

Inlet to Purification Dominera11aere k 3, 100 100 sample Containst 'g-SM7 MU-v106 Grab sample Outlet of Putification Domineralisere 80 100 S Ne '. MU-V134 Crab sample Hake-Up Tank vapor Space 4 50 100 sN9 MU-V111 sample Container Make-Up Tank 1.1guld Space 50 100 dNIO CF-v106 Crab sample Core riooding Tanks 600 h SNil CH-Villa /*.N-Vil2B Decay Heat llenovel Coolers Crab sample u 125 250 $N!! SF-V152 Crab sample Spent f'uel Cooling 250 150 Crab sample $ Nie ' 5r-V126 Spent ruel Mineraliser Outlet o 250 100 SN13 WDL-V175A Grab temple Reactor Coolant Bleed H;)d-Up Tank 1A 2 150 shi6 wcL-v1768 Cas Analyser peactor coolant Bleed nold-Up Tank la 2 150 Cas Analyser SHI? WDL-vl76C Reactor Coolant Bleed Hold-Up Tank IC SW)# 2 150 Gas Analyser WCL-v3 7 Weste Transfer Pumps Discharge 70 150 Crab sample 5 Hit MDieV46 Outlet of Clean-up Dominera11sers 100 200 SH2O WDirv".2 0 Grab Eaepte peactor Coolant Evaporator Outlet 100 150 Crab saepte W i re ag eusa ta I. -, - - _ D-v -i e wrr r- -- e.- .-~ - w... w.. 5... ,,. y _.. 9. m. 7.,. y co CD .L p. a g s', *,. 9 ' ' $ 0

n. ,t c.#, ,. 7 ..y. ,e f.*@L,# eunus Ano nor.mc. ow en a. _ m v. se. aw see w 0 6ee om Saos see _ P see. s[. c m ue. Ca me ) i s,ee, e, 8, Che.a ed Appre**e - i-h-Ta e j te pq ; ".. i t TASIE I (Continued) ' ;g SAMP12 PCith aND ANALYSIS Sample Point toelation Valve face t tej OIeratlng Conditicia A na lys t e , [, f PSIG Gr ,'g i a j g- ? ?. 3 $ N21 Wr4.v442 Reactor Ccelant Evaporator Teod Tank 100 150 local Earple l' 5 H22 W MeV112 Reactor Coolant Evaporator Ces Sample I 2 150 Cae Analyser it g.~ sw23 WCteVO2A Reactor Coolant Evaporator Condensate Ceelneraliser 3A Oatlet 100 130 Crah $ ample ,) gg24 WDErv823 Reactor Coolant Evaporetor Condensate Deatneraliser 38 Outlet 100 13 (, Grab sa yle sx25 WDievt SA Reactor Coolant Eveporator Condensate Test Tank 9A 35 130 Crah Saaple s sw28 WDLeV95e peactor Coolant Evaporator Condensate Test Tank 98 35 130 Crab sample a, $ N27 E D!r*.*7 Outlet of Deborating temineralisers 'I. 80 100 Crab saeple q,. A.* . sN28 SH-V143 waste cas Decay Tank 1A to A Cas Analyser ,,i+ SN29 EE.14 4 Waste Gas Decay Tank la 9,m 80 A Cas Analyser s EX30 8:3-7151 Vent Header 2 A Ces Analyser Et:31 W;teV341A Contaminated Drain Tank 11A 50 100 local Keeple SN32 WCI,.*i3418 Contaminated Dra; 7:-6 ILE 50 100 local sasple i Sw33 lC*cV231 Auxiliary autiding sump Tank 25 A Grab 55eple $N34 EtrV351 Analliary Building Sump Tank 2 A Cae Analyser arr35 Wete'/266 Miscellaneous Waste Hold-Up Tank 25 A Crab $seple SN34 McteV352 Miecellaneous waste Hold.L'p Tank 2 A Cao Analyser .3N37 W:1.*1244A Neutraliser Tank 8A A Crab saeple $N38 W,L-72463 Neutraliser Tank 8B $2 Crab Sample SN39 W,$.Vt9AO Concentrated Waste Tank 15 160 local Sae6de SN40 . wtg.'/111A/113S Declaimed Boric Acid Tank 15 110 local Eseple SN41 WDs.Ye t $perit Pasin morage Tank 75 A local semple e e- ,, e an s. 0% 0' _.. - _ e n - ei:. e.wv.- -., - -. - - . + - .; -.... ~ - -... - -.-.. - ~. -...- -.. .t. .. s.,9, m --a a I w 0 .......*a e a d.< i 64

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.a... - e. ---.( ;% SUMN3 AND ROE. INC. [ WI O. see. D.i. soon fee P.,. pse. 4 Om % CA 8ae En e of e St Checked A psir e.e4 , g l > *4 Time 1 i f' L ^4. = herz 2 (Continued) 8 NS TILUMrM ThTICod Afl0 CNTRc[A i .4 'Itc rri PICA 7iCoe CESCY1Fr3OM ' FWCTYCBE j IIX3 Tim g J N Rrr CU1PUT 5 W INT j' s f.4 WCC RA ct t g O-1-TIl Tempera tsr e Indicates temperature of steam Generator Piping Cas tilled 20-220 y 2C-223 r N/A 'j s ii {BaW) indicator RC-N-la sample cooler outlet i 1hermometer ',t- ' - CA-1-TT 2 Tesspera ture Indicates temperature of Steam Generator Piping Gaa Pilled 0-220 F 20-220 r N/A - 45 0 ) Indicator RC-N-1A sample cooler outlet thermometer ' 1,. CA-2-PI' Pressure Indicates pressure of sample fra Piping Bourdon 0-100 PEIO 0-3C0 MIO - N/A (PW) Indicator Makeup Tank gas space. Tube CA-3-TE -2 Terperatare Indicates temperature of inlet to eteaa t, Piping Gas tilled 100-600 r Icc-800 r N/A (B&W) Indicator Sample cooler. The ramet er O-4-TE Tengerstare Indicates temperature of outlet from P1P ng Cas tilted 20-220 F 20-220 r et/A '3 e i 9 (8&W) ,Ir.dtcator stese sample cooler. P e rwme t er .. f., CA-5-PI Pressure Indicates prosaure of steam sample ef ter raping sourdon 0-3000 MIO 0-3tCO PSIG N/A ~ !f (B&W) Indicatw Cooler. TW e lr CA-4-PT Pressurel Indicates pressure of steam sample af ter Piping Bourdon 0-160 PSIG 0-240 PSIG N/A 'i IE&w) Indicat or throttle valves. Tube Cf.-1-rf F1m Indicates f1m la No. 1 sample purge line to Piping Rotaaete' 0-1 GPM 0-1 GPM rs/A gS&W) Indicator upstream of Make-Up ritters. CA-4-ri riow In(icates flow in No. 3 sample purge line to Piping potameter 0-1Gm 0-1GPM N/A t (S&W) Indicator Misc. Waste Jold-Up Tank. 8a-9-P1-Pressure Indicates pressure in No. '3 sample purge line Piping tourdon 0-160 MIG 0-180 rsIG K/A / (B&W) Indicator to Mlac. waste hold-Up Tank Tube CA-20-ri " riow Indicates flow of saryle fra Make-Up Piping potaseter t-1400 scrH 0-1400 SCfft 1:/A 436W) Indicatar Tank gas space. ON ~ Fer== S4 k]D2 la

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t. 'h., 3 4l f e.. t BURMS AND ROf. IteC. (.'. g \\1 W Q. Ne Does Boca Na PeseNo.. t D e==g No Cm No Sheet e8 f i to Chedeo Apss eM g ( I60s iff n TAatt 3 IContinued) i g IkSTauMorraggorg AND CON 11tCLS j, 'I e. IrrtTt rIFA Tirm.

vsrPintos FIM TION IDCATICm TYPE 1* PUT OUTPUT f ETPot NT r a-r.

i FA Q P A NC.c i '$l !l 1-I? CA-rtts-3931 Control Provideo control of valve CA-v6 (loolation Panet 15 Pushbutton

I/h N/A N/h switch for sample from upstrea.a of Letdown coolere).

W/R&G Lts. - l)[(. ) WDterit3-3404 Control Provideo control of valve WDL-V436 (loolation Panel 33t Selector N/h N/A N/h li Switch of eample purge return lines 3s3 to Misc. Weste $ witch W/ Hold-Up Tonkl. RAG Lts. CA-V1-MIS Control Provides control of valve CA-V1 (Isolation Penel 15 selector $w. .1/h N/h N/h 1, (B6W) Pwitch for sample from Pressurloo r steam space). W/R&G Lte. CA.1-M18 Cortrol Provides control of velve CA-V3 (Isolation Panel 15 selector Sw. M/h Al/h N/A (B&W) switch for sample from Presourtser water space). W/ PAC Lte, f I CA-V10-M2 5 Control Provideo control of valve CA-V10 (loolation Panel 15 selector $w. N/A N/h 1/h I (SEW) Switch of samples from Reactor Building to sample W/e4G 1Ae. Cooler SW-C-1). ,,[ e N Os g -33 r eammaa4 -- ~ ~r m - 4 .. see. -v4. m- .e.. -.... -,..,-- -. m m,.,. - ~ f. b. V .,,, g g,., .....,,*s

A- . ~, g_ SURNS AND ROE,lNC. g g w0.No 0.w so a he Page No. c. =g sea ces he. She e of l pl 4, Chadee AW T.no \\ j g i NE ' i k ~ PAPEL eOMITD ant #Ute'IAtens P hD COMPUTrlll INPUTS A paart puwwrro Asasuw 1AToes l 33r'r;tr:cAttml ar>.stntcD VR m1 A BLE, 'tm!"1 ALAPM EETICl*r!1 INPUT $0URCE VARIA3!2 PAttCE NAME A FD PAh71, h*Jpel'111 ',, e' Rt its* I CA-CAR-3100fCao vent Drfgen la Gas semples. % 34

l/A Hays Owygee Padweste Pn1 1C28 CJ

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