REtsULAjTORY INFORi4lA~TION~ DISTRIBUTION S STE~1, (RIOS)

ACCESSION< NBR'81102602'14'OC ~ DATEl'1/10/22" NOTARIZED!'O'O'E<~FACILe50: 2V5» Diaol o Canyon Nucl e'ar Power~ Plant~i Uni t '1r. Paci f i c Ga 05000275

AUTHI',NAIt1EI AU THOR APF ILIATION

CRANElg P ~ 5"o Pacific Gas L Electric Co.RECIP.'AAHFI RECIIPZENT AFF ILiIAT'ION

RIRAGLC A'< F ~ J ~ Liticenslng, Branch- 3

SUBJECJ:: Forwards- review of desi gniqualificationI L installationI ofp:lant'nstruments to determine: ch'anges'ecessary foricompliants w/R'eg, Guidel 1,97<Revision 2.requirements.Work~wi11 'oe- comp:leted prior to. Jbnel 1983

''ISTREBUTIONCUBES AOASS COPIES RECEXVEO:LiTR $ 'NCL< "S ZE,:

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=PACIFIC GA.S AND ELECTRIC COMMENTP. O. BOX 7442 1 77 BEALE STREET, 31ST FLOOR, SAN FRANCISCO, CALIFORNIA94106

TELEPHONE (415) 781-4211 TELECOPIER (415) 543-7813

ROBERT OHLBACHYICC CRCTIDCNT AND OCNCRAL ATTORNCY

C H AR I LP S T. VAN D S U S Lv NPHILIP A. ORANS, JR.HENRY J. LSPLANTS

JOHN S. 0 ISSONARTHLIR L ~ HILLMAN~ JR ~

C HARLS S W. THISSSLLDAN ISL S. OISSONJACK P. PALLIN~ JR.

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OIL~ E1T L HA11ICKOLENH WE ~ T JR,HDNARO Y OOLVOJANE ~ C IOSSOONRo ~ E11 L 401DONPETE1 W HAN~ CHENRl~ HARD ~'OCKCDAVIDl LUOYIOSOHWILLIAMH EOWA1DSP RONALD lAUI'NEINCRRo ~ 11T R RICKETYDAVIDJ WILLIAN~ ONSAUCE R WORTHINOTON

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CAVIDW ANDE1SONDIANA4 ~ RONAV~ EHLEIDH ~ CAS ~ IDYAUD1 EY DAINE ~COHALO O ELNCKSOHPATRICK 4, SOLDER~IAULAY, HAYNE~RICHARD C, JONESHARRYW LONOJOHN 1, LOWROSERT 4, MCLtNHANRl ~ NA10 H HOSSSNIRLEYA 4ANDERSOHJACKW ~ IIVCKKtNHETHYARD

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IATNAHT, ANHANDSTEVEN P. OVRKEI ANEIACHAPPELLCOA1V P ENCINASCAYID4 OIL~ EATSTEVEN / OREENWALOJUAN M JAYOME ~ EK C. LIPSONJt ~ RICA LORHloA, KIRIC HCKENEIERICHARD I ~ IlEI ~ 1RODE1 J PETEA ~JO ANN 4NATPERLONI~ 4 YIHCEHT

October 22, 1981

Mr. Frank J. Miraglia, JrsT Chief,Licensing Branch No. 3Division of LicensingOffice of Nuclear Reactor RegulationU. S. Nuclear Regulatory CanmissionWashington, D. C. 20555

Re: Docket No. 50-275Diablo Canyon Unit 1License No. DPR-76License Condition-Compliance

with R/G 1.97

8/KNh ~OCT23 198tt3™ )t,MIg, gggAg aKNLNON

CONAIQIOH

Dear Mr. Miraglia:

Pursuant to Iten 2.C(7) of the License we have reviewedthe design, qualification and installation of instruments at the DiabloCanyon Power Plant to determine what changes are needed to complywith the Regulatory Guide 1.97, Revision 2. The Regulatory Guidelists 69 separate variables which need to be reviewed. (Some variablesare listed more than once in the Regulatory Guide.)

PGandE's review of these itens is sunmarized in Tables 1through 5 attached. Table 1 lists the 48 variables which comply withthe Regulatory Guide. The work required to bring 21 remaining variablesinto ccmpliance has been categorized as follows:

ai |0ieOai O sii02'DRADGCK 05000275

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Mr. Frank J. Miraglia, Jr. October 22, 1981

Table 2: Eleven variables which require qualification of theexisting equipnent.

Table 3: Four variables which require changing the ranges.

Table 4: One variable which requires upgrading of the indicationloops

Table 5: Five variables which require new indication loops.

We will complete this work prior to the June, 1983 implementationdate established in the Regulatory Guide.

Kindly acknowledge receipt of this material on the enclosedcopy of this letter and return it to rre in the enclosed addressedenvelope.

ery truly yours,

QPhilip A. Crane, Jr.

Enclosure

cc(w/enc.): Service List

I,

Page 1 of 6

TABLE 1

VARIABLE FUNCTION CORRECTIVE ACTION

1) Control Rod Position 1) Reactivity ControlType B, Category 3

NoOe.

2) RCS Soluble BoronConcentration

Reactivity ControlType B, Category 3

None.

3) RCS Pressure Core CoolingType B, Category 1

None.

2) Maintaining ReactorCoolant SystemIntegrityType B, Category 1

3) Reactor CoolantPressure BoundaryType C, Category 1

4) ContainmentType C, Category 1

4) Core Exit Temperature 1)

2)

Core CoolingType B, Category 3

Fuel CladdingType C, Category 1

None.

5) Coolant Level inReactor

Core CoolingType B, Category 1

None.

6) Degrees of Subcooling 1)

7) Containment SumpWater Level

Core CoolingType B, Category 2

Maintaining ReactorCoolant SystemIntegrityType B, Category2 (NR)Category 1 (WR)

None.

None.

2) Reactor CoolantPressure BoundaryType C, Category2 (NR)Category 1(WR)

Page 2 of 6

TABLE 1 (Cont'd.)

VARIABLE FUNCTION CORRECTIVE ACTION

8) Containment Pressure 1) Maintaining ReactorCoolant SystemIntegrityType B, Category 1

None.

2) MaintainingContainment IntegrityType B, Category l.

Reactor CoolantPressure BoundaryType C, Category 1

4) ContainmentType C, Category 1

9) Containment Isolation 1)Valve Position

MaintainingContainmentIntegrityType B, Category 1

None.

10) Analysis of Primary 1)Coolant (GammaSpectrum)

Fuel CladdingType C, Category 3

None.

ll) Containment AreaRadiation

Reactor Coolant Pres- None.sure BoundaryType C, Category 3

2) ContainmentRadiation,Type E, Category 1

12) Effluent RadioactivityNoble Gas Effluentfrom Condenser AirRemoval System Exhaust

Reactor CoolantPressure BoundaryType C, Category 3

None.

13) Containment HydrogenConcentration

ContainmentType C, Category 1

None;

14) Containment EffluentRadioactivity — NobleGases from IdentifiedRelease Points

ContainmentType C, Category 2

None.

Page 3 of 6

TABLE 1 (Cont'd.)

VARIABLE FUNCTION CORRECTIVE ACTION

15) Effluent;Radioac tivityNoble Gases (insidebuildings orareas)

C

16) Accumulator IsolationValve Position

1) ContainmentType C, Category 2.

1) Safety InjectionSystemType D, Category 2

None.

None.

17) Refueling WaterStorage Tank Level

1) Safety InjectionSystemType D, Category 2

None.

18) Reactor CoolantPump Status

1) Primary CoolantSystem,Type D, Category 3

None.

19) Primary System SafetyRelief ValvePositioners (includingPORV and code valves)or flow through orpressure in ReliefValve Lines

1) Primary CoolantSystem,Tyne D, Category 2

None.

20) Pressurizer Level 1) Primary CoolantSystem,Type D, Category 1

None.

21) Pressurizer HeaterStatus

1) Primary CoolantSystem,Type D, Category 2

None.

22) Quench Tank Level 1) Primary CoolantSystem,Type D, Category 3

None.

23) Quench Tank Pressure 1) Primary CoolantSystem,Type D, Category 3

None.

24) Steam Generator Level 1) Secondary SystemType D, Category 1

None.

0

Page 4 of 6

TABLE 1 (Cont'd.)

VARIABLE FUNCTION CORRECTIVE ACTION

25) Safety/Relief Valve 1)Positions on MainSteam Flow

Secondary SystemType D, Category 2

None.

26) Main Feedwater Flow 1) Secondary SystemTyne D, Category 3

None.

27) Auxiliary orEmergency FeedwaterFlow

Auxiliary FeedwaterType D, Category 2

None.

28) Condensate Storage 1)Tank Water Level

29) Component CoolingWater Temperatureto ESF System

Auxiliary FeedwaterType D, Category 1

Cooling Water SystemType D, Category 2

None.

None.

30) Component Cooling Wat.'er 1)Flow to ESF System

Cooling Water System None.Type D, Category 2

31) High-Level Radioactive 1)Liquid Tank Level

Radwaste SystemType D, Category 3

None.

32) Radioactive Gas Hold- 1)UpTank Pressure

Radwaste SystemType D, Category 3

None.

33) Emergency Ventilation 1)Damper Position

Ventilation SystemType D, Category 2

None.

34) Status of Standbyand other EnergySources Importantto Safety(hydraulic, pneumatic)

Power SuppliesType D, Category 2

None.

35) Radiation ExposureRate (insidebuildingson areas whereaccess is requiredto service equipmentimportant to safety)

Area RadiationType E, Category 2

None.

36) Noble Gases and VentFlow Rate (CommonPlant Vent DischargingAny of Above Releasesif containment purgeis included,

Airborne RadioactiveMaterials Releasedfrom PlantsType E, Category 2

None.

Page 5 of 6

TABLE 1 (Cont'd.)

VARIABLE FUNCTION CORRECTIVE ACTION

37) Noble Gases and VentFlow Rate (Ventfrom SteamGenerator SafetyRelief Valvesor AtmosphericDump Valves)

1) Airborne RadioactiveMaterials Releasedfrom PlantsType E, Category 2

None.

38) Noble Gases and VentFlow Rate (All otherIdentified ReleasePoints)

1) Airborne RadioactiveMaterials Releasedfrom PlantsType E, Category 2

None.

39) Radiation ExposureMeters (continuousindication at fixedlocations)

1) Environs Radiationand RadioactivityType E

None.

40) Airborne Radiohalo-gens and Particu-lates (portablesampling withonsite analysiscapability)

1) Environs Radiationand RadioactivityType E, Category 3

None.

41) Plant and EnvironsRadiation (portableinstrumentation)

1) Environs Radiationand RadioactivityType E, Category 3

None.

42) Plant and EnvironsRadioactivity(portableinstrumentation)

1) Environs Radiationand RadioactivityType E, Category 3

None.

43) Wind Direction MeteorologyType E, Category 3

None.

44) Wind Speed

45) Estimation of 1)Atmospheric Stability

MeteorologyType E, Category 3

MeteorologyType B, Category 3

None.

None.

46) Primary Coolant: and 1)Sump

Accident SamplingCapability (Analysiscapability on Site)Type E, Category 3

None.

Page 6 of 6

TABLE 1 (Cont'd.)

FUNCTION CORRECTIVE ACTION

47) Containment Air 1) Accident SamplingCapability (AnalysisCapability on Site)Type E, Category 3

None.

48) Particulates andHalogens (AllIdentified PlantRelease Points.Sampling withOnsite AnalysisCapability)

1) Airborne RadioactiveMaterials Released fromPlantType E, Category 3

None.

Page 1 of 1

TABLE 2

VARIABLE FUNCTION CORRECTIVE ACTION

1) Neutron Flux Reactivity ControlType B, Category 1

Qualify the equipment

2) RHR System Flow Residual Heat RemovalType D, Category 2

Qualify the transmitter

3) RHR Heat Exchanger 1)Outlet Temperature

Residual Heat RemovalType D, Category 2

Qualify the transmitter

4) Accumulator Tank Level 1) Safety InjectionSystem,Type D, Category 2

Qualify the transmitter

5) Accumulator TankPressure

6) Boric Acid Charging 1)Flow

7) Flow in HP1 System

Safety InjectionSystem,Type D, Category 2

Safety InjectionSystem,Type D, Category 2

Safety InjectionSystem,Type D, Category 2

Qualify the transmitter

Qualify the transmitter

Qualify the transmitter

8) Flow in LP1 System

9) Makeup Plow-In

Safety InjectionSystem,Type D, Category 2

Chemical and VolumeControl SystemType D, Category 2

Qualify the transmitter

Qualify the transmitter

10) Letdown Flow-Out Chemical and VolumeControl SystemType D, Category 2

Qualify the transmitter

ll) Volume Control Tank 1)Level

Chemical and VolumeControl SystemType D, Category 2

Qualify the transmitter

Page 1 of 1

TABLE 3

VARIABLE FUNCTION CORRECTIVE ACTION

1) RCS Cold Leg Water 1)Temperature

2)

Reactivity .ControlType B, Category 3

Core CoolingType B, Category 1

Change the present rangeof 0 — 700 F.to 50o - 750 F.There is no span change.

2) RCS Hot Leg WaterTemperature

3) Ouench TankTemperature

Core CoolingType B, Category 1

1) Primary CoolantSystemType D, Category 3

Change the presentrange of 0 - 700 Fto 50 - 750 F. Thereis no span change.

Change the rangefrom 50 — 300 F to 50 — 750 F.

4) Steam GeneratorPressure

1) Secondary System Change the rangeType D, Category 2 from 0 — 109% of safeties to

1320 psig.

TABLE 4

VARIABLE FUNCTION CORRECTIVE ACTION

1) Containment Atmos-phere Temperature

1) Containment CoolingSystemType D, Category 2

Upgrade theindication loop.Replace the existingloop with a new onethat meets th..requirement.

~ '

V Page 1 of 1

~ '

TABLE 5

VARIABLE

1) RadioactivityConcentration onRadiation Level inCirculating PrimaryCoolant

FUNCTION

1) Fuel CladdingType C, Category 1

CORRECTIVE ACTION

Add new indication loops

2) Radiation ExposureRate (insidebuildings orareas, e.g.,auxiliarybuilding,reactor shieldbuilding annulus,fuel handlingbuilding, whichare in directcontact withprimarycontainmentwhere penetrationsand hatches arelocated)

Containment Type C,Category 2

Add new indication loops(Monitors at the penetrationarea and the FuelHandling Building)

3) Containment SprayFlow

4) Containment SumpWater Temperature

1) ContainmentCooling SystemsType D, Category 2

1) Containment CoolingSystemsType D, Category 2

Add new indication loops

Add new indication loop

5) Heat removal bythe Containment FanHeat Removal System

1) Containment CoolingSystemsType D, Category 2

Add new indication loops

I

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