Text

Proposed Tech Specs Pages Re LAR 98-02,proposing Changes to TS to Accommodate Fuel Cycles of Up to 24 Months
	ML20217Q298
Person / Time
Site:	Seabrook
Issue date:	04/03/1998
From:	; NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	;
Shared Package
ML20217Q279	List: ML20217Q276; ML20217Q298;
References
	NUDOCS 9804100379
	Download: ML20217Q298 (34)
	v • d • e

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Section II Markup of Proposed Changes The attached markup reflects the currently issued revision of the Technical Specifications listed below. Pending Technical Specifications or Technical Specification changes issued subsequent to this submittal are not reflected in the enclosed markup.

The following Technical Specification pages are included in the attached markup:

Technical Specification Title Page Table 1.1 - Definitions - Frequency Notation 1-8 4.0.5b ASME Inservice Inspection And Testing 3/4 0-3 4.1.2.2 b Boration Flow Paths - Operating 3/41-8 4.5.2e ECCS Subsystems - 3/4 5-6 T.,, Greater Than Or Equal To 350 F 4.6.2.l c Containment Spray Systems 3/4 6-14 4.6.2.2c Spray Additive System 3/4 6-15 4.6.3.2 Containment Isolation Valves 3/4 6-17 4.7.1.2.f c Auxiliary Feedwater System 3/47-4 4.7.3b Primary Component Cooling Water System 3/4 7-12 ;

4.7.4.l b Service Water System / Ultimate Heat Sink 3/4 7-13A 4.7.4.2b Service Water System / Ultimate Heat Sink 3/4 7-13A 4.8.1.1.1 b A.C. Sources 3/48-3 4.8.1.1.2 f A.C. Sources 3/48-5 j Bases 4.0.2 Surveillance Interval Extension Time Limit B 3/4 0-4 I l 'l l

9804100379 900403 Page 4 PDR ADOCK 05000443 P PDR i I

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TkBLh1.1 FREQUENCY NOTATION _

NOTATION FREQUENCY S At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

D At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

W At least once per 7 days.

M At least once per 31 days.

Q At least once per 92 days. 1 SA At least once per 184 days. l R/Rcn N"6 " *'" At least once per 18 months.

A S/U Prior to each reactor startup.

f N. A. Not applicable.

Q _ Compgo each release. _

ggyvas z.4 Teat /AL(.2 le^tt once ?tt M( Ac4

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TABLE 1.2 OPERATIONAL MODES REACTIVITY % RATED AVERAGE COOLANT MODE CONDITION, k THERMAL POWER

TEMPERATURE df

1. POWER OPERATION > 0.99 > 5% > 350*F l I 0.99

2. STARTUP -< 5% I 350*F

3. HOT STANDBY 7 0.99 0 I 350*F

4. HOT SHUTDOWN < 0.99 0 350*F > T,yg > 200*F

5. COLD SHUTDOWN < 0.99 0 < 200*F

6. REFUELING ** < 0.95 0 5140*F

Excluding decay heat.

- Fuel in the reactor vessel with the vessel head closure bolts less than fully tensioned or with the head removed.

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4 APPLICABILITY m '

,' SURVEILLANCE REQUIREMEhTS 4.0.5 (Continued)

b. Surveillance intervals specified in Section XI of the ASME Boiler and Pressure Vessel Code and applicable Addenda for the inservice inspection and testing activities required by the ASME Boiler and Pressure Vessel Code and applicable Addenda shall be applicable as follows in these Technical Specifications:

ASME Boiler and Pressure Vessel Required frequencies for Code and applicable Addenda performing inservice terminology for inservice inspection and testing inspection and testina activities activities Weekly At least once per 7 days Monthly At least once per 31 days '

Quarterly or every 3 ronths At least once per 92 days Semiannually or every 6 months At least once per 184 days Every 9 months At least once per 276 days Yearly or annuaT1y At least once per 366 days

c. The provisions of Specification 4.0.2 are applicable to the above required frequencies for performing inservice inspection and testing

,.. activities;

d. Performance of the above inservice inspection and testing activities shall be in addition to other specified Surveillance Requirements; and

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e. Nothing in the ASME Boiler and Pressure Vessel Code shall be construed to supersede the requirements of any Technical Specification.

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4 SEABROOK - UNIT 1 3/4 0-3

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4 REACTIVITY CONTROL SYSTEMS-BORATION SYSTEMS FLOW PATHS - OPERATING LINITING CONDITION FOR OPERATION 4

3.1.2.2 At least two of the following three boron injection flow paths shall be OPERABLE:

a. The flow path from the boric acid tanks via a boric. acid transfer pump and a charging pump to the Reactor Coolant System (RCS), and ,

b. Two flow paths from the refueling water storage tank via charging pumps to the RCS.

APPLICABILITY: MODES 1, 2, and 3*

l ACTION:

With only one of the above required boron injection flow paths to the RCS OPERABLE, restore at least two boron injection flow paths to the RCS to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to at least the limit specified in the CORE OPERATING LINITS REPORT (COLR) for the above MODES at 200*F within the i next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore at least two flow paths to OPERABLE status within Vi the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS 4.1.2.2 At least two of the above required flow paths shall be demonstrated i OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position;

b. At least once per 18 months N W ( # pt verifying that each automatic valve in the flow path actu'ates' to its correct position on a safety injection test signal; and

c. At least once per 18 months by verifying that the flow path required by Specification 3.1.2.2a. delivers at least 30 gpm to the RCS.

The provisions of Specifications 3.0.4 and 4.0.4 are not applicable for entry into MODE 3 for the centrifugal charging pump declared inoperable pursuant to Specification 4.1.2.3.2 provided that the centrifugal charging pump is restored to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or prior to the temperature of !

one or more of the RCS cold legs exceeding 375'F, whichever comes first.

SEABROOK - UNIT 1 3/4 1-8 AmendmentNo.[

EMERGENCY CORE COOLING SYSTEM _S ECCS SUBSYSTEMS - T GREATER THAN OR EOUAL TO 350'F z

SURVEILLANCE RE0VIREMENTS l

4.5.2 (Continued)

d. At least once per 18 months by: i I) Verifying automatic interlock action of the RHR system from the Reactor Coolant 5 stem to ensure that with a simulated or. actual l Reactor Coolant S stem pressure signal greater than or equal to 365 psig, the interlo ks prevent the valves from being opened.

2) A visual inspection of the containment sum and verifyin subsystem suction inlets are not restricted by debris an$ that the that the sump components (trash racks, screens, etc.) show no evidence of structural distress or abnormal corrosion.

e. At least once per 18 months Jfrd$tdpw I

1) Verifying that each automatic valve in the flow path actuates to its correct position on (Safety ?njection actuation and Automatic Switchover to Containment Sump) test signals, and

2) Verifying that each of the following pumps start automatically upon receipt of a Safety Injection actuation test signal:

a) Centrifugal charging pump, b) Safety Injection pump, and c) RHR pump.

f. By verifying that each of the following pumps develops the indicated l differential pressure on recirculation flow when tested pursuant to Specification 4.0.5:

1) Centrifugal charging pump, 2 2480 psid;

2) Safety Injection pump, 2 1445 psid; and

3) RHR pump, 2 171 psid.

SEABROOK - UNIT 1 3/4 5-6 Amendment No.A'T

CONTAINMENT SYSTEMS -

3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS -

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CONTAINMENT SPRAY SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.1 Two independent Containment Spray Systems shall be OPERABLE with each Spray System capable of taking suction from the RWST* and automatically trans-ferring suction to the containment sump. -

APPLICABILITY: MODES 1, 2, 3, and 4.

l AGIlgli:

With one Containment Spray System inoperable, restore the inoperable Spray j System to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STAND 8Y within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the inoperable Spray System to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . 4 SURVEILLANCE REQUIREMENTS 4.6.2.1 Each Containment Spray System shall- be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position is in its correct j position;

b. By verifying, that on recirculation flow, each pump develops a differential pressure of greater than or equal to 262 psi when tested pursuant to Specification 4.0.5;

c. At least once per 18 months Sind Wuq by: I

1) Verifying that each automatic valve in the flow path actuates to its correct position on a Containment-Pressurgi;3 test signal, and

2) Verifying that each spray pump starts automatically on a Containment Pressure-Hi-3 test signal.

d. At least once per 10 years by performing an air or smoke flow test 'l ;

through each spray header and verifying each spray nozzle is unobstructed.

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In MODE 4, when the Residual Heat Removal System is in operation, an OPERABLE

- flow path is one that is capable of taking suction from the refueling water storage tank upon being manually realigned.

SEABROOK - UNIT 1 3/4 6-14 Amendment No.

CONTAINMENT SYSTEMS DEPRESSURIZATION AND COOLING SYSTEMS _

SPRAY ADDITIVE SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.2 The Spray Additive System shall be OPERABLE with:

a. A spray additive tank containing a volume of between 9420 and 9650 gallons of between 19 and 21% by weight NaOH solution, and

b. Two gravity feed paths each capable of adding Na0H solution from the chemical additive tank to the Refueling Water Storage Tank.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With the Spray Additive System inoperable, restore the system to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the Spray Additive System to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUT 00WN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS 4.6.2.2 The Spray Additive System shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position is in its correct position;

b. At least once per 6 months by:

1) Verifying the contained solution volume in the tank, and

2) Verifying the concentration of the NaOH solution by chemical analysis.

c. At least once per 18 months,[Mruf_sh6t$ y verifying that each automatic valve in the flow path actuates to'its correct position on a Containment Pressure-Hi-3 test signal.

SEABROOK - UNIT 1 3/4 6-15 ph D

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CONTAINMENT SYSTEMS

.. CONTAINMENT ISOLATION VALVES l SURVEILLANCE REQUIREMENTS Each containment isolation valve shall be demonstrated OPERABLE at least once per 18 months by:

a. Verifying that on a Phase "A" Isolation test signal, each Phase "A" l Isolation valve actuates to its isolation position, I

b. Verifying that on a Phase "B" Isolation test signal, each Phase "B" Isolation valve' actuates to its isolation position, and

c. Verifying that on a Containment Purge and Exhaust Isolation test !

signal, each purge and exhaust valve actuates to its isolation l

position.

4.6.3.3 The isolation time of each power-operated or automatic containment "

isolation valve shall be determined to be within its limit when tested pursuant l

to Specification 4.0.5.

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l SEABROOK - UNIT 1- 3/4 6-17 Amendment No. ,3,4'

PLANT SYSTEMS ,

TURBINE CYCLE -

AUXILIARY FEEDWATER SYSTEM SURVEILLANCE REQUIREMENTS 4.7.1.2.la. (Continued)

3) Verifying that valves FW-156 and' FW-163 are OPERABLE for l d

alignment of the startup feedwater pump to the emergency feedwater header.

b. At least once per 92 days on a STAGGERED TEST BASIS by: j

1) Verifying that the motor-driven emergency feedwater pump develops a discharge pressure of greater than or equal to 1460 psig at a flow of greater than or equal to 270 gps;

2) Verifying that the steam turbine-driven pump develops a discharge pressure of greater than or equal to 1460 psig at a flow of greater than or equal to 270 gpm when the secondary steam supply pressure is greater than 500 psig.

The provisions of Specification 4.0.4 are not applicable for entry into MODE 3;

3) Verifying that the startup feedwater pump develops a discharge pressure of greater than or equal to 1375 psig at a flow of greater than or equal to 425 gpm; I

c. At least once per 18 months @ l

1) Verifying that each automatic valve in the flow path actuates to its correct position.upon receipt of an Emergency Feedwater System Actuation tast signal;

2) Verifying that each emergency feedwater pump starts as designed automatically upon receipt of an Emergency Feedwater Actuation System. test' signal;

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3) Verifying that with all manual actions, including power source and valve alignment, the startup feedwater pump starts within the required elapsed time; and

4) Verifying that each emergency feedwater control valve closes on receipt of a high flow test signal.

m SEABROOK - UNIT 1 3/4 7-4 AmendmentNo.[

. PLANT SYSTEMS 3/4.7.3 PRIMARY COMPONENT COOLING WATER SYSTEM LIMITING CONDITION FOR OPERATION cL. -

3.7.3 At least two independent primary component cooling water loops shall be I OPERABLE, including one OPERABLE pump in each loop.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With one primary component cooling water (PCCW) loop inoperable, restore the required primary component cooling water loop to OPERABLE status within 72 l hours or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

h SURVEILLANCE REOUIREMENTS 4.7.3 At least two primary component cooling water loops shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) servicing safety-related equipment that is not locked, sealed, or otherwise secured in position is in its correct position; and 9-

b. At least once per 18 months @ rido M tgd e by verifying that each automatic valve servicing safety-related equipment actuates to its correct position on its associated Engineered Safety Feature actuation signal. I q

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l SEABROOK - UNIT 1 3/4 7-12 Amendment No.

PLANT SYSTEMS ,

3 /4.7.4 SERVICE WATER SYSTEM / ULTIMATE HEAT SINK SURVEILLANCE REQUIREMENTS 4.7.4.1 Each service water loop shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) servicing safety related equipment that is not locked, sealed, or otherwise secured in position is in its correct position; and

b. At least once per 18 months (dut sh d by verifying that each automatic valve servicing sa sty-r~d a equipment actuates to its f correct position on its associated Engineered Safety Feature actuation test signal.

4.7.4.2 Each service water cooling tower loop shall be demonstrated OPERABLE: '

a. At least once per 31 days by verifying that each valve (manual, ,

power-operated, or automatic) servicing safety related equipment that is not locked, sealed, or otherwise secured in position is in its correct position; and

b. At least once per 18 monthshg4 ft)dtfog, y verifying that:

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1) Each automatic valve servicing safety-related equipment actuates to its correct position on its associated Engineered Safety Feature actuation test signal,

2) Each automatic valve in the flowpath actuates to its correct l position on a Tower Actuation (TA) test signal and i

3) Each service water cooling tower pump starts automatically on a TA signal.

4.7.4.3 The service water pumphouse shall be demonstrated OPERABLE at least i once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by verifying the water level to be at or above 5'-0' (-36'-0" (

Mean Sea Level).

4.7.4.4 The mechanical draft cooling tower shall be demonstrated OPERABLE:

a. At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by verifying the water in the mechanical l draft cooling tower basin to be at a level of greater than or equal to 42.15* feet.

b. At least once per week by verifying that the water in the cooling tower basin to be at a bulk average temperature of l'ess than or equal to 70*F.

With the cooling tower in operation with valves aligned for tunnel heat

.. treatment, the tower basin level shall be maintained at greater than or equal to 40.55 feet.

SEABROOK - UNIT 1 3/4 7-13A Amendment No.

ELECTRICAL POWER SYSTEMS A.C. SOURCES OPERATING SURVEILLANCE REOUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the Onsite Class 1E Distribution System shall be

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and ;

b. Demonstrated OPERABLE at least once per 18 months (dU/ip6 SKu"lo N by transferring (manually and automatically) unit power s'upply fron l the normal circuit to the alternate circuit. 1 4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:*

a. In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1) Verifying the fuel level in the day fuel tank;

2) Verifying the fuel level in the fuel storage tank; ,

3) Verifying the fuel transfer pump starts and transfers fuel from the storage system to the day tank;

4) Verifying the lubricating oil inventory in storage;

5) Verifying the diesel starts from standby conditions and attains a generator voltage and frequency of 4160 i 420 volts l and 60 i 1.2 Hz within 10 seconds after the start signal.

The diesel generator shall be started for this test by using one of the following signals:

a) Manual, or b) Simulated loss-of-offsite power by itself, or

All planned starts for the purpose of these surveillances may be preceded by an engine prelube period.

SEABROOK - UNIT 1 3/4 8-3 Amendment No.

7 FIFCTRICAL POWER SYSTEMS A C. SOURCES {

OPERATING SURVElitANCE REOUIREMENTS 4.8.1.1.2 (Continued) b)

A kinematic viscosity at 40*C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 !

centistokes if gravity was not determined by I comparison with the supplier's certification:

c) A flash point greater than or equal to 125'F: and l

d) A clear and bright appearance with proper color when i tested in accordance with ASTH-D4176-82.

2) By verifying within 30 days of obtaining the sample that the other properties specified in Table 1 of ASTM-D975-81 are met 1

when tested in accordance with ASTM-0975-81 except that the analysis for sulfur may be performed in accordance with ASTM-D1552-79 or ASTN-D2622-82.

e. At least once every 31 days:

1) By obtaining a sample of fuel oil in accordance with ASTM-D2276-78. and verifying that total 3 articulate contamination is less than 10 mg/ liter w1en checked in '

accordance with ASTM-D2276-78. Method A. and 2)

By visually inspecting the lagging in the area of the flanged joints on the silencer outlet of the diesel exhaust system for leaka 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months )ge (also after an extended operation of greater than

f. At least once per 18 months h s,h6t,dd$n'

1) Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's i

recommendations for this class of standby service:

! 2)

! Verifying the generator capability to reject a load of l greater than or equal to 671 kW while maintaining voltage at 4160 420 volt's and frequency at 60 4.0 Hz:

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' sele ed survei ance req ments. portio [thereof,may <

per rmed duri condition or modes other th shutd a 0 CFR 50.5 afety Eva) ation s ports sa e condu of. pro t t ided (

urveillance in a conditf'on or mo that is consist nt wit safe i operation o the plant./Ref. NRC/L 91-04)

SEABROOK - UNIT 1 3/4 8-5 Amendment No.

C 3/4.0 APPLICABILITY BASES Specification 4.0.1 establishes the requirement that surveillances must be performed during the OPERATIONAL MODES or other conditions for which the requirements of the Limiting Conditions for Operation apply unless otherwise stated in an individual Surveillance Requirement. The purpose of this specification is to ensure that surveillances are performed to verify the ys operational status of systems and components and that parameters are within k specified limits to ensure. safe operation of the facility when the plant is in j Y

9( a MODE or other specified. condition for which the associated Limiting M (-Conditions for Operation are applicable. Surveillance Requirements do not D h have to be performed when the facility is in an OPERATIONAL MODE for which the b requirements of the associated Limiting Condition for Operation do not apply h unless otherwise specified. The Surveillance, Requirements associated with a d Special Test Exception are only applicable when the Special Test Exception is 7 used as an allowable exception to the requirements of a specification.

3 u/ _ Specification 4.0.2 establishes the limit for which the specified time d interval for Surveillance Requirements may be extended. It permits an

$ TW allowable extension of the normal surveillance interval tT facilitate o surveillance scheduling and consideration of plant operating conditions that b

may notonaoing be suitable for conducting the surveillance; activiti e.g., transient conditions g (ti)tb or other surveillance or maintenance t also provides flexibility i[o accoilimedate the length of a fuel c e for surveillances that f '

}.o U are performed at each fefueling outage and arerspecified with an 18 month surveillance interval # It is not intended that this provision be used j ec $ i repeatedly as a convenience to extend surveillance intervals bevond that ) [ h

, specified for surveillances that are not performed ^""aa - ' "" " "" ^ " C= " s .

' #) '. The limitation of Specification 4.0.2 is based on engineering judgement and the recognition that the most probable 7 esult of any particular surveillance

_._,, being performed is the verificatifof conformance with the Surveillance &

Requirements. This provision is sufficient to ensure that the reliability ensured through surveillance activities is not significantly degraded beyond that obtained from the specified surveillance interval.

Specification 4.0.3 establishes the failure to perform a Surveillance i Requirement within the allowed surveillance interval, defined by the provisions of Specification 4.0.2, as a condition that constitutes a failure to meet the OPERABILITY requirements for a Limiting Conditions for Operation.

Under the provisions of this specification, systems and components are assumed i to be OPERABLE when Surveillance Requirements have been satisfactorily performed within the specified time interval. However, nothing in this provision is to

. be construed as implying that lystems or components are OPERABLE when they are found or known to be inoperable although still meeting the Surveillance Requirements.

This specification also clarifies that the ACTION requirements are applicable when Surveillance Requirements have not been completed within the allowed '

~ surv'eillance interval and that the time limits of the ACTION requirements apply from the point in time it is identified that a surveillance has not been performed l and not at the time that the allowed surveillance interval was exceeded. Completion l of the Surveillance Requirement within the allowable outage time limits of the ;

ACTION requirements restores compliance with the requirements of Specification 4.0.3. ,

However, this does not negate the fact that the failure to have performed the r surveillance within the allowed surveillance interval, defined by the provisions

[ ,. of Specification 4.0.2, was a violation of~the OPERABILITY requirements of a i

.?. ...,. Limiting Condition for Operation that is subject to enforcement action.

SEABROOK - UNIT 1 B 3/4 0-4

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( once each REFUF1 ING INTERVAL or once ner 1S months during refueling outages. Likewise.

it is not the intent that REFUEI ING INTERVAL or 18-month refuelin_o outa_ne surveillances be nerformed during nower operation unless it is consistent with safe operation.

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SECTION III Retype of Proposed Changes i

The attached retype reflects the currently issued version of the Technical Specifications. Pending Technical Specification changes or Technical Specification changes issued subsequent to this submittr.1 are not reflected in the enclosed retype. The enclosed retype should be checked for continuity with Technical Specifications prior to issuance.

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l Page 5

TABLE 1.1 FRE00ENCY NOTATION

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NOTATION FREOUENCY i S At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

D !

W At least once per 7 days. i M At least once per 31 days. l 0 At least once per 92 days. '

SA At least once per 184 days.

R/ REFUELING INTERVAL At least once per 18 months.

R(24)/ REFUELING INTERVAL (24) At least once per 24 months, 1 S/U Prdar to each reactor startup.

N.A. Not applicable. i P Completed prior to each release.

l TABLE 1.2 OPERATIONAL MODES REACTIVITY % RATED AVERAGE COOLANT MQQE CONDITION.k , THERMAL POWER

TEMPERATURE

1. POWER OPERATION 2 0.99 > 5% a 350 F

2. STARTUP a 0.99 s 5% > 350 F

3. HOT STANDBY < 0.99 0 2 350 F

4. HOT SHUTDOWN < 0.99 0 350 F > T,y >200*i

5. COLD SHUTDOWN < 0.99 0 s 200 F

6. REFUELING ** s 0.95 0 s 140 F l

Excluding decay heat. j

- Fuel in the reactor vessel with the vessel head closure bolts less than fully tensioned or with the head removed. .

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l SEABROOK - UNIT 1 1-8 Amendment No.

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I APPLICABILITY I LIMITING CONDITION FOR OPERATION 3 4.0.5 (Continued)

b. Surveillance intervals specified in Section XI of the ASME Boiler and Pressure Vessel Code and applicable Addenda for the inservice inspection and testing activities required by the ASME Boiler and Pressure Vessel Code and applicable Addenda shall be applicable as follows in these Technical Specifications:

ASME Boiler and Pressure Vessel Required frequencies for Code and applicable Addenda performing inservice terminology for inservice inspection and testing insoection and testing activities activities Weekly At least once per 7 days Monthly At least once per 31 days Quarterly or every 3 months At least once per 92 days Semiannually or every 6 months At least once per 184 days Every 9 months At least once per 276 days Yearly or annually At least once per 366 days Biennially or every 2 years At least once per 731 days

c. The provisions of Specification 4.0.2 are applicable to the above required frequencies for performing inservice inspection and testing activities:

d. Performance of the above inservice inspection and testing activities shall be in addition to other specified Surveillance Requirements; and

e. Nothing in the ASME Boiler and Pressure Vessel Code shall be construed to supersede the requirements of any Technical Speci fication.

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SEABROOK - UNIT 1 3/4 0-3 AMENDMENT NO.

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. REACTIVITY CONTROL SYSTEMS.

B0 RATION CONTROL'-

FLOW PATHS'- OPERATING l LIMITING CONDITION FOR OPERATION 3.1.2.2 At least two of the following three boron injection flow paths shall be OPERABLE:

a. The flow path from the boric acid tanks via a boric acid transfer pump and a charging pump to the Reactor Coolant System (RCS). and

b. Two flow paths from the refueling water storage tank via charging pumps to the RCS.

APPLICABILITY: MODES 1. 2. and 3*

ACTION:

.With only one of the above required boron injection flow paths to the RCS OPERABLE. restore at least two boron injection flow paths to the RCS to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to at least the limit specifled in the CORE OPERATING LIMITS REPORT (COLR) for the above MODES at 200 F within the next 6 hour6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months s: restore at least two flow paths to OPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REOUIREMENTS _

l

'4.1.2.2 'At least two of the above required flow paths shall be demonstrated OPERABL E:

a. At least once per 31 days by verifying that each valve (manual, power-o sealed.perated, or automatic) or otherwise secured in in the flow path position, is inthat is not locked, its correct position:

b. ' At least once per 18 months by verifying that each automatic valve in the flow path actuates to i+ correct position on a safety injection test signal; and

c. At least once per 18 months by verifying that the flow path ~ required by Specification 3.1.2.2a. delivers at least 30 gpm to the RCS. l l

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The provisions of Specifications3.0.4 and 4.0.4 are.not applicable for entry - I into MODE 3-for the centrifugal charging pump declared' inoperable pursuant .to-

Specification 4.1.2.3.2 provided that the centrifugal charging pump is

. restored to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or prior to the temperature of one Jor more.of the RCS cold legs exceeding 375 F. whichever comes first.

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SEABROOK ' UNIT 1- 3/4 1-8 Amendment No. 9 !

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EMERGENCY CORE COOLING SYSTEMS

'4 ECCS SUBSYSTEMS - T GREATER THAN'OR EOUAL TO 350 F SURVEILLANCE REOUIREMENTS 4.5.2 (Continued)

d. At least once per 18 months by:

1) Verifying automatic interlock action of the MHR system from the Reactor Coolant System to ensure that with a simulated or actual o Reactor Coolant System pressure signal greater than or equal to 365 psig the interlocks prevent the valves from being opened.

2) A visual inspection of the. containment sump and verifying that the subsystem suction inlets are not restricted by debris and that the sump components (trash racks, screens, etc.) show no evidence of structural distress or abnormal corrosion. ;

e. - At least once per 18 months by:

1) Verifying that each automatic valve in'the flow path actuates to its correct position on (Safety' Injection actuation and Automatic Switchover to Containment Sump) test signals, and 1 1

2) Verifying that each of the following pumps start automatically

'upon receipt of.a Safety Injection actuation test signal:

a) Centrifugal charging pump, b) Safety Injection pump, and c) RHR pump.

l f. By verifying that each of the following pumps develops the indicated

! differential pressure on recirculation flow when tested pursuant to Specification 4.0.5:

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1) Centrifugal charging pump. > 2480 psid: !

2) Safety Injection pump. 2 1445 psid: and

3) RHR pump 2 171 psid.

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SEABROOK - UNIT 1 3/4 5-6 Amendment No. 3, 33 l

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_ ~- ' CONTAINMENT-SYSTEMS

'4 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS

. CONTAINMENT SPRAY SYSTEM L

LIMITING CONDITION FOR OPERATION i

! 3.6.2.1 Two'inde)endent Containment Spray. Systems shall be OPERABLE with each

! Spray System capa)le of taking suction from the RWST* and automatically trans-ferring suction to the containment sump.

l APPLICABILITY: MODES 1. 2, 3, and 4.

I

' ACTION:

, With one Containment.Sprc;, System inoperable, restore the inoperable Spray System to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hour6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months s: restore the inoperable Spray System to OPERABLE status-within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

l SURVEILLANCE REQUIREMENTS L - 4.6.2.1 Each Containment Spray System shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve' (manual, power-operated, or automatic) in the flow path that is not locked,

sealed, or otherwise secured in position is in its correct position;

b. By verifying, that on recirculation flow, each pump develops a i

differential pressure of greater than or equal to 262 psi when tested pursuant to Specification 4.0.5:

L c At least once per 18 months by:

i 1) Verifying that each automatic valvc in the flow path actuates to

j. its correct position or. a Containment Pressure-Hi-3 test signal.

and t ~ 2) ~ Verifying that each saray pump starts automatically.on a Containment Pressure-li-3 test signal.

.d, At least once per 10 years by performing an air or smoke flow test

-through each spray header and verifying each spray nozzle is unobstructed.

In MODE 4, when the Residual Heat Ren, oval System'is in operation, an OPERABLE flow path is one that is capable of t6kina suction from the refueling water storage tank upon being manually'reall:ned.

SEABROOK.- UNIT 1 3/4 6 Amendment Noc 30

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, CONTAINMENT SYSTEMS DEPRESSURIZATION AND COOLING SYSTEMS l

SPRAY ADDITIVE SYSTEM L

LIMITING CONDITION FOR OPERATION 3.6.2.2 .The Spray Additive System shall be OPERABLE with:

a. A spray additive tank containing a volume of between 9420 and 9650 gallons of between 19 and 21%, by weight Na0H solution, and

b. Two aravity feed paths each ca)able of adding NaOH solution from the

chemical additive tank to the Refueling Water Storage Tank.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

I With the S) ray Additive System inoperable, restore the system to OPERABLE status witlin 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; i

restore the Spray Additive System to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REOUIREMENTS 4.6.2.2 The Spray Additive System shall be demonstrated OPERABLE:

a. At ieast once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position is in its correct position;

o. At least once per 6 months by:

i

1) Verifying the contained solution volume in the tank, and

2) Verifying the concentration of the NaOH solution by chemical analysis.

c. At least once per 18 months by verifying that each automatic valve l in the flow path octuah:s to its correct position cn a Containment i Pressure-Hi-3 test signal.

I SEABROOK - UNIT 1 3/4 6-15 Amendment No.

,. CONTAINMENT SYSTEMS CONTAINMENT ISOLATION VALVES SURVEILLANCE REQUIREMENTS 4.6.3.2 Each containment isolation valve shall be demonstrated O'PERABLE at least once per 18 months by:

a. Verifying that on a Phase "A" Isolation test signal, each Phase "A" Isolation valve actuates to its isolation position,

b. Verifying that on a Phase "B" Isolation test signal, each Phase "B" Isolation valve actuates to its isolation position and

c. Verifying that on a Containment Purge and Exhaust Isolation test

, signal, each purge and exhaust valve actuates to its isolation position.

4.6.3.3 The isolation time of each power-operated or automatic containment isolation valve shall be determined to be within its limit when tested pursuant to Specification 4.0.5.

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l SEABROOK - UNIT 1 3/4 6-17 Amendment No. M.-44

)

,. PLANT SYSTEMS-l TURBINE CYCLE AUXILIARY FEEDWATER SYSTEM l l l SURVEILLANCE REQUIREMENTS L

4.7.1.2.la. (Continued) l 3) Verifying that valves FW-156 and FW-163 are OPERABLE for alignment of the startup feedwater pump to the emergency feedwater header.

I

b. At least once per 92 days on a STAGGERED TEST BASIS by:

1) Verifying that the motor-driven emergency feedwater pump develops i a discharge pressure of greater than or equal to 1460 psig at a 1 flow of greater than or equal to 270 gpm;

2) Verifying that the steam turbine-driven pump develops a discharge pressure of greater than or equal to 1460 psig at a flow of greater than,or equal to 270 gpm when the secondary steam supply l pressure is greater than 500 psig. The provisions of Specification 4.0.4 are not applicable for entry into MODE 3:

l 3) Verifying that the startup feedwater pump develops a discharge l pressure of greater than or equal to 1375 psig at a flow of greater than or equal to 425 gpm;

c. At least once per 18 months by:

1) Verifying that each automatic valve in the flow path actuates to its correct position u Actuation test signal:pon receipt of an Emergency Feedwater System j i l 2) Verifying that each emergency feedwater pum) starts as designed l automatically upon receipt of an Emergency reedwater Actuation 1 j System test signal:

l 3) Verifying that with all manual actions, including power source and i

valve alignment. the startup feedwater pump starts within the required elapsed time: and

4) Verifying that each emergency feedwater control valve closes on receipt of a high flow test signal.

SEABROOK - UNIT 1 3/4 7-4 Amendment No. 30

.. PLANT SYSTEMS 3/4.7.3 PRIMARY COMPONENT COOLING WATER SYSTEM LIMITING CONDITION FOR OPERATION q

.3.7.3 At least two independent primary component cooling water loops shall be k d

j OPERABLE, including one OPERABLE pump in each loop.

APPLICABILITY: MODES 1, 2. 3, and 4.

ACTION:

With one primary component cooling water (PCCW) loop ino)erable, restore the

! required 3rimary component cooling water loo) to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or ]e in at least HOT STANDBY within tie next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REOUIREMENTS 4.7-.3 At least two 3rimary component cooling water loops shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) servicing safety-related equipment

, that is not locked, sealed, or otherwise secured in position is in its correct position; and

b. At least once per 18 months by verifying that each automatic valve l servicing safety-related equipment actuates to its correct position on its associated Engineered Safety Feature actuation signal.

l SEABROOK - UNIT 1 3/4 7-12 Amendment No. 32

. PLANT SYSTEMS o

3/4.7.4 SERVICE WATER SYSTEM / ULTIMATE HEAT SINK SURVEILLANCE REOUIREMENTS 4.7.4.1 Each service water loop shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (maneal, power-operated, or automatic) servicing safety related equipment that is not locked, sealed. or otherwise secured in position is in its correct position; and

! - b. At least once per 18 months by verifying that each automatic valve l servicing safety-related equipment actuates to its correct position on its associated Engineered Safety Feature actuation test signal.

4.7.4.2 Each service water cooling tower loop shall be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) servicing safety related equipment ,

that is not locked, sealed, or otherwise secured in position is in its correct position: and

b. At least once per 18 months by verifying that: l

1) Fach automatic valve servicing safety-related equipment actuates to its correct position on its associated Engineered Safety Feature actuation test signal.

2) Each automatic valve in the flowpath actuates to its correct position on a Tower Actuation (TA) test signal and

3) Each service water cooling tower pump starts automatically on a TA signal.

4.7.4.3 The service water pumphouse shall be demonstrated OPERABLE at least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by verifying the water level to be at or above 5'-0" (-36'-

0" Mean Sea Level).

4.7.4.4 The mechanical draft cooling tower shall be demonstrated OPERABLE:

a. At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by verifying the water in the mechanical draft cooling tower basin to be at a level of greater than or equal 1 to 42.15* feet. l

b. At least once per week by verifying that the water in the cooling !

tower basin to be at a bulk average temperature of less than or l equal to 70 F. !

With the cooling tower in operation with valves aligned for tunnel heat treatment. the tower basin level shall be maintained at greater than or equal to 40.55 feet, i

SEABROOK - UNIT 1 3/4 7-13A Amendment No. 62

, ELECTRICAL POWER SYSTEMS l A.C. SOURCES OPERATING l

SURVEILLANCE REOUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite trar,smission network and the Onsite Class 1E Distribution System shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and

b. Demonstrated OPERABLE at least once per 18 months by transferring (manually end automatically) unit power supply from the normal l i circuit to *.he alternate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

! a. In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1) Verifying the fuel level in the day fuel tank:

2) Verifying the fuel level in the fuel storage tank:

3) Verifying the. fuel transfer pump starts and transfers fuel from

, the storage system to the day tank; l

4) Verifying the lubricating oil inventory in storage:

5) Verifying the diesel starts from standby conditions and attains a generator voltage and frequency of 4160 420 volts and 60 1.2 Hz within 10 seconds after the start signal. The diesel generator shall be started for this test by using one of the follouling signals:

I a) Manual, or l b) Simulated loss-of-offsite power by itself or i

i

All planned starts for the purpose of these surveillances may be preceded by ,

an engin6 prelube period. j l

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SEABR00X - UNIT 1 3/4 8-3 Amendment No. 43, 38 l

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, ELECTRICAL POWER SYSTEMS A.C. SOURCES OPERATING SURVEILLANCE REOUIREMENTS 4.8.1.1.2 (Continued) b) A kinematic viscosity at 40 C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistokes, if gravity was not determined by comparison with the supplier's certification:

c) A flash point greater than or equal to 125 F: and d) A clear and bright ap)earance with proper color when tested in accordance with ASTM-)4176-82.

2) By verifying within 30 days of obtaining the sample that the other properties specified in Table 1 of ASTM-D975-81 are met when tested in accordance with ASTM-D975-81 except that the analysis for sulfur may be performed in accordance with ASTM-D1552-79 or ASTM-D2622-82.

e. At least once every 31 days:

1) By obtaining a sample of fuel oil in accordance with ASTM-D2276-78, and verifying that total particulate contamination is less than 10 mg/ liter when checked in accordance with ASTM-D2276-78. Method A. and

2) By visually inspecting the lagging in the area of the flanged joints on the silencer outlet of the diesel exhaust system for leakage (also after an extended operation of greater than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ).

f. At least once per 18 months by:

1) Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service:

2) Verifying the generator capability to reject a load of greater than or equal to 671 kW while maintaining voltage at 4160 420 volts and frequency at 60 1 4.0 Hz:

SEABROOK - UNIT 1 3/4 8-5 Amendment No. 64

. 3/4.0 APPLICABILITY s

BASES Soecification 4.0.1 establishes the requirement that surveillances must be performed during the OPERATIONAL MODES or other conditions for which the requirements of the Limiting Conditions for Operation apply unless otherwise stated in an individual Surveillance Requirement. The purpose of this specification is to ensure that surveillances are )erformed to verify the operational status of systems and components and tlat parameters are within specified limits to ensure safe operation of the facility when the plant is in a MODE or other specified condition for which the associated Limiting Conditions for Operation are applicable. Surveillance Requirements do not have to be performed when the facility is in an OPERATIONAL MODE for which the requirements of the associated Limiting Condition for Operation do not ap)1y unless otherwise specified. The Surveillance Requirements associated wit 1 a Special Test Exce) tion are only applicable when the Special Test Exception is used as an allowa)le exception to the requirements of a specification.

Soecification 4.0.2 establishes the limit for which the specified time l interval for Surveillance Requirements may be extended. It permits an allowable extension of the normal surveillance interval to facilitate surveillance scheduling and consideration of plant o may not be suitable for conducting the surveillance:perating conditions that e.g. , transient-conditions or other ongoing surveillance or maintenance activities. It also orcvides flexibility to accommodate the lenath of a fuel cycle for surveillances that are oerformed at each refuelina outaae and are either soecified with an 18-month surveillance interval or soecified to be nerformed at least once each REFUELING INTERVAL. It is not intended that this orovision be used repeatedly as a convenience to extend surveillance intervals beyond that specified for surveillances that are not oerformed once each REFUELJE INTERVAL or once Der 18 months durina refuelina outaaes. Likewise. it is not the intent that REFUELING INTERVAL or 18-month refuelina outaae surveillances be nerformed durina oower coeration unless it is consistent with safe ooeration The limitation of S)ecification 4.0.2 h based on engineering judgement and the recognition t1at the most probable result of any 3 articular surveillance being performed is the verification of conformance wit 1 the i Surveillance Requirements. Ibji provision u sufficient to ensure tht the reliability ensured through surveillance activities.is not significantly degraded beyond that obtained from the specified surveillance interval.

Snecification 4.0.3 establishes the failure to perform a Surveillance Requirement within the allowed surveillance interval, defined by the provisions of Specification 4.0.2, as a condition that constitutes a failure to meet the OPERABILITY requirements for a Limiting Conditions for Operation.

Under the provisions of this specification, systems and components are assumed to be OPERABLE when Surveillance Requirements have been . satisfactorily performed within the specified time interval. However, nothing in this provision is to be construed as implying that systems or components are OPERABLE when they are found or known to be inoperable although still meeting the Surveillance Requirements. This specification also clarifies that the ACTION requirements are applicable when Surveillance Requirements have not been completed within the allowed surveillance interval and that the time limits of the ACTION requirements apply from the point in time it is P

SEABROOK - UNIT 1 B 3/4 0-4 Amendment No.

i

, 3/4.0 APPLICABILITY BASES l Soecification 4.0.3 (continued) identified that a surveillance has not been performed and not at the time that !

the allowed surveillance interval was exceeded. Completion of the ;

Surveillance Requirement within the allowable outage time limits of the ACTION l requirements restores compliance with the requirements of S]ecification 4.0.3. l H3 wever, this does not negate the fact that the failure to lave performed the '

surveillance within the allowed surveillance interval, defined by the provisions of Spy:ification 4.0.2. was a violatien of the OPERABILITY requirements of a Limiting Condition for Operation that is subject to enforcement action.

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l SEABROOK - UNIT 1 B 3/4 0-4A Amendment No.

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l Section IV Determination of Significant Ilazards for Proposed Changes I

l Page 6

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l IV. DETERMINATION OF SIGNIFICANT IIAZARDS FOR PROPOSED CHANGES License Amendment Request (LAR) 98-02 is 3e initial submittal in a planned series of License Amendment Requests which propose changes to the Seabrook Station Technical Specifications to accommodate fuel cycles of up to 24 months. The proposed administrative changes are either as j suggested in Generic Letter 91-04, " Changes in Technical Specification Surveillance Intervals to l

Accommodate a 24-Month Fuel Cycle," or to be used as a temporary control measure to support future l

phased implementation of 24-month fuel cycle surveillance interval extensions.

)

In accordance with 10CFR50.92, North Atlantic has reviewed the attached proposed changes and has l concluded that they do not involve a significant hazards consideration (SHC). The basis for the l conclusion that the proposed changes do not involve a SilC is as follows:

1. The proposed changes do not involve a significant increase in the probability or conseqi.cnces of an accident previously evaluated.

The design basis accidents are not affected by the proposed editorial and administrative changes.

The proposed changes do not change the level of programmatic controls or the procedural details currently in place. Furthermore, these changes have no adverse affect to the safe operation of the station. Performance of certain maintenance and testing activities during conditions or modes other than shutdown will be evaluated by North Atlantic to ensure proper regard to their effect on safe operation of the plant is given prior to conduct of a particular surveillance, or portion thereof. Therefore, the proposed changes do not involve a significant increase in the probability or consequences of an accident previously evaluated.

2. The proposed changes do not create the possibility of a new or different kind of accident from any previously analyzed.

The proposed changes do not introduce new features or modify plant structures, systems and l components or procedures that could possibly affect station operations under normal or abnormal j conditions, thus, the potential for an unanalyzed accident is not created. Performance of maintenance and testing activities on-line, as well as shutdown, are controlled by North Atlantic's procedures and policies to perform reviews and assessments of these activities to determine the affect on safe operation of the facility. The proposed editorial and administrative l

changes have no adverse affect on the safety limits or design basis accidents. Therefore, the l proposed changes do not create the possibility of a new or different kind of accident from any l previously analyzed. l l

j Page 7

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3. The proposed changes do not involve a significant reduction in a margin of safety.

There are no changes being made to the Technical Specification safety limits or safety system settings that would adversely affect plant safety. The changes do not affect the operation of structures, systems or components nor do they introduce administrative changes to plant procedures that could affect operator response during normal, abnormal or emergency situations.

Performance of certain maintenance and testing activities during conditions or modes other than shutdown will be evaluated by North Atlantic to ensure proper regard to their effect on safe operation of the plant is given prior to conduct of a particular surveillance, or portion thereof.

Therefore, the proposed changes do not involve a significant reduction in a margin of safety.

Based on the above evaluation, North Atlantic concludes that the proposed changes do not constitute a significant hazard.

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Sections V & VI I l

Proposed Schedule for License Amendment Issuance and Effectiveness ,

and I EnvironmentalImpact Assessment !

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Page 9

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l V. PROPOSED SCHEDULE FOR LICENSE AMENDMENT ISSUANCE AND EFFECTIVENESS North Atlantic requests NRC review of License Amendment Request 98-02 and issuance of a license amendment by October 3,1998, having immediate effectiveness and implementation required within 60 days.

VI. ENVIRONMENTAL IMPACT ASSESSMENT North Atlantic has reviewed the proposed license amendment against the criteria of 10CFR51.22 for environmental con;iderations. The proposed changes do not involve a significant hazards consideration, nor increase the types and amounts of effluent that may be released offsite, nor significantly increase individual or cumulative occupational radiation exposures. Based on the foregoing, North Atlantic concludes that the proposed changes meets the criteria delineated in 10CFR51.22(c)(9) and 10CFR51.22(c)(10) for a categorical exclusion from the requirements for an Environmental Impact Statement, l

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ML20217Q298

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