Text

Safety Evaluation Supporting Amend 2 to License NPF-49
	ML20209A838
Person / Time
Site:	Millstone
Issue date:	04/07/1987
From:	; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML20209A806	List: ML20209A801; ML20209A838;
References
	NUDOCS 8704280290
	Download: ML20209A838 (15)
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'o UN'ITED STATES p -l' NUCLEAR REGULATORY COMMISSION o.

WASHINGTON, D. C. 20555 j

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SAFETY EVALUATION BY THE OFFICE OF NI! CLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 2 TO FACILITY OPERATING LICENSF NO. NPF-49 NORTHEAST NUCLEAR ENERGY COMPANY, ET AL.

MILLSTONE NUCLEAR POWER STATION, UNIT 3 DOCKET NO.' 50-423

1.0 INTRODUCTION

i Bv. letter dated September 6,1986, the Northeast Nuclear Energy Company

('NNECO) submittad a request to change the Millstone Unit 3 technical specifications.

The amendment revises Technical Specification Sections 4.6.6.1, 4.7.7, s

4.7.9 and 4.9.12 by replacing the 31-day requirement to usa certified fan curves to verify buildino filtration system flow rates with a direct '

flowrate measurement and, deleting the 18 month requirement tn verify the fan curves based on observed flow rates and pressure drops.

A Notice of Consideration of Issuance of Amendment to License and Proposed No Significant Hazards Consideration Detennination and Opportunity for Hearing related to the requested action was published in the Federal Register on October 8, 1986 (51 FR36100). No coments or reouests for hearing were received.

2.0 EVALUATION I

Technical Specification Sections 4.6.6.1, 4.7.7, 4.7.9 and 4.9.12 require the verification of Engineered Safety Features Atmosphere Cleanup System flowrates at least once per 31 days using certified fan curves, and the verification of fan curves based on observed flow rates and pressure drops at least once per 18 months.

By letter dated September 5, 1986 NNECO requested changes to the technical specifications to perfonn the surveiliance air flow

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measurements on ESF filter systems by direct flow measurement techniques.

The staff has raviewed the proposed changes to the technical specifi-cations and has concluded that direct flow measurement (by a traversing pitet tube flow sensor) provides a more accurate flow indication than that obtained by the fan flow delta-P curves currently specified as the measurement tool in the technical specifications. The staff considers the proposed flow measurement method to be superior to the existing fan flow delta-P curves and, therefore, approves the technical specification change.

8704280290 870407 hDR ADOCK 05000423 PDR l

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3.0 ENVIRONMENTAL CONSIDERATION

This amendment involves changes to the surveillance requirements. The staff has determined that the amendment involves no sianificant increase in the amounts, and no significant change in the t.vpes', of any effluents that may be released offsite and that there is no significant increase in individual or cumulative occupational radition exposure. The Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration end there has been no public comment on such finding. Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.

4.0 CONCLUSION

The staff has concluded, based on the considerations discussed above, that:

(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (7) such activities will be conducted in compliarce with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public.

Date of Issuance: APR 7 1987 Principal Contributors:

E. Doolittle R. Fell 1

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ATTACHMENT TO LICENSE AMENDMENT NO. 2

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FACILITY OPERATING LICENSE NO. NPF-49 DOCKET NO. 50-423 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages as indicated. The revised pages are identified by the captioned amendment number and contain vertical lines indicating the areas of change. Overleaf pages* have been provided to maintain document completeness.

REMOVE INSERT 3/4 6-37*

3/4 6-37 3/4 6-38 3/4 6-38 3/4 6-39 3/4 6-39 3/4 6-40*

3/4 6-40 3/4 7-15 3/4 7-15 3/4 7-16 3/4 7-16 3/4 7-19*

3/4 7-19 3/4 7-20 3/4 7-20 3/4 7-21 3/4 7-71 3/4 7-22*

3/4 7-22 3/4 9-13 3/4 9-13 3/4 9-14 3/4 9-14 i

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f CONTAINMENT SYSTEMS 3/4.6.5 SUBATMOSPHERIC PRESSURE CONTROL SYSTEM STEAM JET AIR EJECTOR LIMITING CONDITION FOR OPERATION 3.6.5.1 The inside and outside isolation valves in the steam jet air ejector suction line shall be closed.

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

With the inside or outside isolation valves in the steam jet air ejector suction line not closed, restore the valve to the closed position within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 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 and 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 4(

4.6.5.1.1 The steam jet air ejector suction line outside isolation valve shall be determined to be in the closed position by a visual inspection prior to increasing the Reactor Coolant System temperature above 200*F and at least once per 31 days thereafter.

4.6.5.1.2 The steam jet air ejector suction line inside isolation valve shall be determined to be locked in the closed position by a visual inspection prior to increasing the Reactor Coolant System temperature above 200 F.

e MILLSTONE - UNIT 3 3/4 6-37

CONTAINMDir SYSTDIS 3/4.6.6 SECONDARY CONIAINMDTI I

SUPPLEMENTARY LEAK COLLECTION AND RELEASE SYSTEM i

LIMITING CONDITICH FOR OPERATICN 3.6.6.1 Two independent Supplementary Leak Collection and Release Systems shall be OPERABLE.

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

ACTION:

With one Supplementary Leak Collection and Release System inoperable, restore the inoperable system to OPERABLE status within 7 days or be in at least for STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUIDOWN within the folicwing 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILIANCE REQUIREMENTS 4.6.6.1 Each Supplementary Leak Collection and Release System shall be demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flw through the HEPA filters and charcoal adsorbers and verifying a system flw rate of 9,500 cfm +10% and that the system operates for at least 10

-3 continuous hours with the heaters operating; l

b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) follwing painting, fire, or chemical release in any ventilation zone communicating with the system by:

1) verifying that the system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses the test procedure guidance in Regulatory Positions C.5.a, C.5.c, and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978,* and the system flw rate is 9,500 cfm f10%;

2)

Verifying, within 31 days after removal, that a laboratory '

analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%; and 3) verifying a system flw rate of 9,500 cfm 110% during system operation when tested in accordance with ANSI N510-1980.

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MILLSTONE - UNIT 3 3/4 6-38 Amendment No. 2

CONTAINMENT SYSTEMS V

SURVEILIANCE R5UTIREMDCS (Continued)

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c.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation, by verifying, within.31 days after removal that a laboratory analysis of a representative carbon sample obtained' in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2,. March 1978,* for a methyl iodide penetration of less than 0.175%:

1 d.

At least once per 18 months by:

1) verifying that the pressure drop across the combined HEPA 1

filters and charcoal adsorber banks is less than 6.25 inches Water Gauge while. operating the system at a flow I

rate of 9,500 cfm 310%,

2)

Verifying that the system starts on a Safety Injection l

test signal, 4

3)

Verifying that each system produces a negative pressure of greater than or equal to 0.25 inch Water Gauge in the annulus within 50 seconds after a start signal, and 4) verifying that the heaters dissipate 50 1 5 kW when tested j

in accordance with ANSI N510-1980.

I After each complete or partial replacement of a HEPA filter e.

bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1980 for a DOP test aerosol while operating the system at a flow rate of 9,500 cfm +10%; and f.

After each complete or partial replacement of a charcoal adsorber bank, by verifying that the cleanup system satisfies l

the in-place penetration and bypass leakage testing acceptance i

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criteria of less than 0.05% in accordance with ANSI N510-1980 for a halogenated hydrocarbon refrigerant test gas while operating the system at a flowrate of 9,500 cfm 110%.

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ANSI N510-1980 shall be used in place of ANSI N510-1975 referenced in -

Regulatory Guide 1.52, Revision 2, March 1978.

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l MILLSTONE - UNIT 3 3/4 6-39 Amendment No. 2

CONTAINMENT SYSTEMS ENCLOSURE BUILDING INTEGRITY

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LIMITING CONDITION FOR OPERATION 3.6.6.2 ' ENCLOSURE BUILDING INTEGRITY shall be maintained.

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

Without ENCLOSURE BUILDING INTEGRITY, restore ENCLOSURE BUILDING INTEGRITY within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 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 and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS ENCLOSURE BUILDING INTEGRITY shall be demonstrated at least once per 4.6.6.2 31 days by verifying that each door in each access opening is closed except when the access opening is being used for normal transit entry and exit.

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3/4 6-40 MILLSTONE - UNIT 3

I PLANT SYSTEMS

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3/4.7.7 CormtOL ROOM EMERGENCY VDirIIATION SYSTEM LIMITING CW DITIN FOR OPERATIN 3.7.7

'No independent Control Room Snergency Air Filtration Systems shall be OPERABLE.

APPLICABILITY: All MODES.

ACTION:

PODES 1, 2, 3 and 4:

With one Control Room Emergency Air Filtration System inoperable, restore the inoperable system to OPERABLE status within 7 days 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 SHUIDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

MODES 5 and 6:

a.

With one control Room Emergency Air Filtration System inoperable, restore the inoperable system to OPERABLE status within 7 days or initiate and maintain operation of the remaining OPERABLE Control Room Emergency Air Filtration System in the recirculation mode.

I b.

With both Control Room Emergency Air Filtration Systems 7

inoperable, or with the OPERABLE Control Room Bnergency Air Filtration System required to be in the recirculation mode by ACTION a. not capable of being powred by an OPERABLE emergency power source, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

j SURVEILIANCE REQUIREMENTS 4.7.7 Each Control Room Emergency Air Filtration System shall be demonstrated OPERABLE:

At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months by verifying'that the control room air a.

temperature is less than or equal to 95 F; b.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate of 1,120 cfm +20% and that the system operates for at least 10 continuous hours with the heaters operating; i

MILLSTONE - UNIT 3 3/4 7-15 Amendment No. 2

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4 PIANT SYSTEMS

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i SURVEILIANCE REQUIREMENTS (Continued)

At least once per 18 months - or. (1) after any structurar c.

maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire, or chemical release in any ventilation zone communicating with the system by:

1) verifying that the system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses the test procedure guidance in Regulatory Position C.S.a, C.5.c, and C.5.d of Regulatory Guide 1.52, Revisions 2, March 1978,* and the system flow i

rate is 1,120 cfm f20%;

2) verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%; and 3) verifying a system flow rate of 1,120 cfm 320% during system operation when tested in accordance with ANSI N510-1980.

d.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation, by verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, i

Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%;

e.

At least once per 18 months by:

1) verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6.75 inches Water Gauge while operating the system at a flow 20 rate of 1,120 cfm f %;

2) verifying that the system maintains the control room at a i

positive pressure of greater than or equal to 1/8 inch Water Gauge at less than or equal to a pressurization flow i

of 230 cfm relative to adjacent areas during system operation; and l

3) verifying that the heaters dissipate 9.4 fl kW when tested in accordance with ANSI N510-1980.

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MII1510NE - UNIT 3 3/4 7-16 Amendment No. 2

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' PLANT SYSTEMS

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SURVEILLANCE' REQUIREMENTS (Continued)

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c.

At least once per 18 months or following a major alteration of the

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control room envelope pressure boundary _by:

1.

Verifying that the' control room envelope is isolated in response to a Control Building' Isolation test signal, 2.

Verifying that after a 60 second time delay following a Control Building Isolation test signal, the control. room envelope pressurizes to greater than or equal to 1/8 inch W.G. relative to the outside atmosphere, and l

3.

Verifying that the positive pressure of Specification 4.7.8.c.2 is maintained for greater than or equal to 60 minutes.

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PLANT SYSTEMS 3/4.7.9 AUXILIARY BUILDING FILTER SYSTEM LIMITING CONDITION FOR OPERATIm independent Auxiliary Building Filter Systems shall be 3.7.9 Wo OPERABLE.

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

ACTION:

4 1

Auxil'iary Building Filter System inoperable, restore the With one inoperable syste:t to OPERABLE status within'7 days 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 SHUIDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

l SURVEILLANCE REQUIREMETS 4.7.9 Each Auxiliary Building Filter System shall be demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS. by initiating, from the control room, flow through the.HEPA filters and charcoal adsorbers and verifying a system flow rate 1

i of 30,000 cfm +10% and that the system operates for at least 10 continuous hours with the heaters operating; i

b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire, or chemical release in any ventilation zone connunicating with the system by:

verifying that the cleanup system satisfies the in-place l

1) penetration and bypass leakage testing acceptance criteria l

of less than 0.05% and uses the test procedure guidance in Regulatory Positions C.5.a, C.S.c, and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978,* and the system flow rate is 30,000 cfm +10%;

2)

Verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sangle obtained in j

accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of lesi, than 0.175%; and j

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MILLSIONE - IMIT 3 3/4 7-20 Amendment No. 2

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PIANT SYSTDIS

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SURVEILIANCE REQUIRDENTS

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L 3)

Verifyino a system flw rate of 30,000 cfm 110% during system operation when tested in accordance with ANSI N510-1980.

c.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation, by verifying, within 31 days after resmal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, Harch 1978,* for a methyl iodide penetration of less than 0.175%;

d.

At least once per 18 months by:

1)

Verifying that the pressure drop across the combined HEPA filters and charcoal adswber banks is less than 6.8 inches Water Gauge dile operating the system at a flw rate of 30,000 cfm f 0%,

l 2)

Verifying that the system starts on a Safety Injection test signal, and

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3)

Verifying that the heaters dissipate 180 +18 kW when

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tested in accordance with ANSI N510-1980.

e.

After each complete or partial replacement of a HEPA filter bank, by verifying that the cleanup system satisfies the in-place penetration and. bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1980 for a DOP test aerosol while operating the system at a flw rate of 30,000 cfm 110%; and f.

After each complete or partial replacement of a charcoal adsorber bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1980 for a halogenated hydrocarbon refrigerant test gas while operating the system at a f1w rate of 30,000 cfm 110%.

ANSI N510-1980 shall be used in place of ANSI N510-1975 referenced in regulatory Guide 1.52, Revision 2, March 1978.

MILLSTONE - LEIT 3 3/4 7-21 Amendment No. 2 l

k PLANT SYSTEMS 3/4.7.10 SNUBBERS I

LIMITING CONDITION FOR OPERATION 3.7.19 All snubbers shall be OPERABLE.

The only snubbers excluded from the requirements are t'iose installed on nonsafety-related systems and then only if their failure or failure of the system on which they are installed would have no adverse effect on any safety-related system.

APPLICABILITY:

MODES 1, 2, 3, and 4.

MODES 5 and 6 for snubbers located on systems required OPERABLE in those MODES.

ACTION:

With one or more snubbers inoperable on any system, within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months replace or re-store the inoperable snubber (s) to OPERABLE status and perform an engineering eval-uation per Specification 4.7.10g. on the attached component or declare the attached system inoperable and follow the appropriate ACTION statement for that system.

SURVEILLANCE REQUIREMENTS 4.7.10 Each snubber shall be demonstrated OPERABLE by performance of the following augmented inservice inspection program and the requirements of Specification 4.0.5.

a.

Inspection Types As used in this specification, type of snubber shall mean snubbers of the same design and manufacturer, irrespective of capacity.

b.

Visual Inspections Snubbers are categorized as inaccessible or accessible during reactor eperation.

Each of these groups (inaccessible and accessible) may be inspected independently according to the schedule below.

The first inservice visual inspection of each type of snubber shall be performed after 4 months but within 10 months of commencing POWER OPERATION and shall include all snubbers.

If all snubbers of each type are found OPERABLE during the first inservice visual inspection, the second inservice visual inspection shall be performed at the first refueling outage.

Otherwise, subsequent visual inspections shall be performed in accordance with the following schedule:

No. of Inoperable Snubbers of Subsequent Visual Each Type per Inspection Period Inspection Period * **

0 18 months 1 25%

1 12 months i 25%

2 6 months i 25%

3,4 124 days i 25%

5,6,7 62 days i 25%

8 or more 31 days i 25%

The inspection interval for each type of snubber shall not be lengthened more than one step at a time unless a generic problem has been identified and corrected; in that event the inspection interval may be lengthened one step the first time and two steps thereaf ter if no inoperable snubbers of that g

type are found.

- The provisions of Sp?cification 4.0.2 are not applicable.

MILLSTONE - UNIT 3 3/4 7-22

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REFUELING OPERATI WS k

3/4.9.12 IUEL BUILDING EXHAUST FILTER SYSTEM LIMITING CCNDITIN FOR OPERATICH 3.9.12 Two independent Fuel Building Exhaust Filter Systems shall be OPERABLE. At least one Fuel Building Exhaust Filter System shall be in operation whenever any evolution involving movement of fuel within the storage pool or crane operations with-loads over the storage pool is in progress.

APPLICABILITY: Whenever irradiated fuel is in the storage pool.

ACTIN:

With one Fuel Building Exhaust Filter System inoperable, fuel a.

movement within the storage pool or crane operation with loads over the storage pool may proceed provided the OPERABLE Fuel Building Exhaust Filter System is capable of being powered from--

an OPERABLE emergency power source and is in operation and discharging through at least one train of HEPA filters and charcoal adsorbers.

b.

With no Fuel Building Exhaust Filter System OPERABLE, suspend all operations involving movement of fuel within the storage J

pool or crane operation with loads over the storage pool until at least one FLel Building Exhaust Filter System is restored to OPERABLE statuF.

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c.

We provisions of Specifications 3.0.3 and 3.0.4 are not applicable.

SURVEILIANCE REQUIREMENTS 4.9.12 he above required Fuel Building Exhaust Filter Systems shall-i be demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate of 20,700 cfm +10% and that the system operates for at least 10 t

continuous hours with the heaters operating; b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire, or chemical release in any ventilation zone connunicating with the system by:

MILLSIU4E - UNIT 3 3/4 9-13 Amendment No. 2 l;

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'I REFUELING OPERATICES SURVEILIANCE REQUIREMENTS (Continued)

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1)

Verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria i

of less than 0.05% and uses the test procedure guidance in i

Regulatory Positions C.S.a,'C.S.c, and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978,* and the system flow rate is 20,700 cfm 110%;

i 2) verifying, within 31 days after

removal, that a

laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria Of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%; and 3) verifying a-system flow rate of 20,700 cfm +10% during system operation when tested in accordance with ANSI N510-1980.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation by verifying, c.

within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,*

meets the laboratory testing criteria of Regulatory Position C.6.a g

of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl' iodide penetration of less than 0.175%;

d.

At least once per 18 months by:

1)

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6.8 inches Water Gauge while operating the system at a flow rate of 20,700 cfm fl0%.

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l MILLS M - UNIT 3 3/4 9-14 Amendment No. 2 i

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/f g'ci UNITED STATES

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NUCLEAR REGULATORY COMMISSION e

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App 7 YE Docket No. 50-423 L

Mr. E. J. Mroczka Senior Vice President l

Nuclear Engineering and Operations i

Northeast Nuclear Energy Company Post Office Box 270 Hartford, CT 06141-0270

Dear Mr. Mroczka:

SUBJECT:

MILLSTONE NUCLEAR POWER STATION, UNIT NO. 3 TECHNICAL SPECIFICATIONS FOR ENGINEERED SAFETY FEATURES ATMOSPHERE CLEANUP SYSTEMS The Commission has issued the enclosed Amendment No. 2 to Facility Operating License No. NPF-49 for Millstone Unit 3.

This amendment is in response to l

your application dated September 5, 1986.

This amendment revises the Technical Specification Sections 4.6.6.1, 4.7.7, 4.7.9 and 4.9.12 by replacing the 31 day requirement to use certified fan i

curves to verify building filtration system flow rates with a direct flowrate measurement and, deleting the 18 month requirement to verify the fan curves based on observed flow rates and pressure drops.

A Notice of Consideration of Issuance of Amendment to Facility Operating License and Proposed No Stanificant Hazards Consideration Determination and Opportunity for Hearing related to the requested action was published in the i

Federal Register on October 8, 1986 (51 FR 36100). No comments or requests for hearing were received.

A copy of our related Safety Evaluation is enclosed. Notice of issuance of these actions will be included in the Comission's next bi-weekly Federal Register notice.

Sincerely, Elizab L.' Doolittle, Pro,iect Manaoer PWR Project Directorate No. 5-Division of PWR Licensing-A

Enclosures:

1.

Amendment No. 2 to License No. NPF-49 2.

Safety Evaluation for Millstone Unit 3 cc: w/ enclosures See next page I

$70$

ir-Millstone Nuclear Powar Station Mr. E. J. Mroczka Northeast Nuclear Eneray Company Unit No. 3 CC:

Gerald Garfield, Esq.

Ms. Jane Spector Day, Berry A Howard Federal Energy Regulatory Commission City Place 825 N. Capitol Street, NE Hartford, Connecticut 06103-3499 Room 8608C Washington, D.C.

70426 Mr. Maurice R. Scully, Executive Director Mr. Kevin-McCarthy, Director Connecticut Municipal Electric Radiation Control Unit Energy Cooperative Department of Environmental Protection 268 Thomas Reed State Office Building Groton, Connecticut 06340 Hartford, Connecticut 06115 Robert W. Bishop, Esq.

Corporate Secretary Northeast Utilities Post Office Box 270 Hartford, Connecticut 06141 Mr. T. Rebelowski Seninr Resident Inspector Office U. S. Nuclear Regulatory Commission Millstone III P. O. Box 811 Niantic, Connecticut 06357-08 Mr. Michael L. Jones, Manager Project Manaaement Department Massachusetts Municipal Wholesale Electric Company Post Office Box d?6 Ludlow, Massachusetts 01056 Regional Administrator U. S. NRC, Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Karl Abraham Public Affairs Office, Region I U. S. Nuclear Pequlatory Commission, King of Prussia, Pennsylvania 19406

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UNITED STATES o

8' NUCLEAR REGULATORY COMMISSION o

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- E WASHINGTON, D. C. 20555

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NORTPEAST NUCLEAP ENERGY COMPANY, ET AL.*

i MILLSTONE NUCLEAR POWER STATION,llNIT NO. 3 DOCKET NO. 50-423 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 7 License No. NPF-49 1.

The Nuclear Regulatory Comission (the Comission1 has found that:

A.

The application for amendment by the Northeast Nuclear Eneroy Company, et al., (the licensees) dated September 5, 1986 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulat{ons of the Comission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public; and (ii) that such activities will be conducted in compliar.ce with the Comission's regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.

Northeast Nuclear Energy Company is authorized to act as agent and representative for the following Owners:

Central Maine Power Company, Central Vertnant Public Service Corocration, Chicopee Municipal Lighting Plant, City of Burlincton, Vemont, Connecticut Municipal Electric Light Company, Massachusetts Municipal Wholesale Electric Company, Montaup Electric Company, New England Power Company, The Village of Lyndonville Electric Department, Western Massachusetts Elactric Company, and Vermont Electric Generation and Transmission Cooperative, Inc., and has exclusive responsibility and control over the physical construction, operation and maintenance of the facility.

N 770 N

D' ?.

Accordingly, the license is amended-by changes to the technical specifications, as indicated in the attachment to this license amendment, and Paragraph 2.C(2) of Facility Operating License No. NPF-49 is hereby amended to read as follows:

( P.) Technical Specifications and Environmental Protection Plan The technical specifications contained in Appendix A revised through Amendment No. 2, and the Environmental Protection Plan contained fr Appendix B, both of which are attached hereto, are hereby incorporated into this license.

Northeast Nuclear Energy Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

This license anendment is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY COMMISSION Victor Nerses, Acting Director PWR Pro.iect Directorate No. 5 Division of PWP Licensing-A Attachments:

Changes to the Technical Specifications Date of Issuance: Apg 7 1987 b

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'o UNITED STATES NUCLEAR REGULATORY COMMISSION j [.!

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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 2 TO FACILITY OPERATING LICENSF N0. NPF-49 NORTHEAST NUCLEAR ENERGY COMPANY, FT AL.

MILLSTONE NUCLEAR POWER STATION, UNIT 3 DOCKET NO. 50-423

1.0 INTRODUCTION

By letter dated September 6, 1986, the Northeast Nuclear Energy Company (NNECO) submittad a request to change the Millstone Unit 3 technical specifications.

The amendment revises Technical Specification Sections 4.6.6.1, 4.7.7, 4.7.9 and 4.9.12 by replacing the 31-day requirement to usa certified fan curves to verify buildino filtration system flow rates with a direct flowrate measurement and, deleting the 18 month requirement to verify the fan curves based on observed flow rates and pressure drops.

i A Notice of Consideration of Issuance of Amendment to License and Proposed No Significant Hazards Consideration Determination and Opportunity for Hearing related to the requested action was published in the Federal Register on October 8, 1986 (51 FR36100). No coments or i

reouests for hearing were received.

i 2.0 EVALUATION Technical Specification Sections 4.6.6.1, 4.7.7, 4.7.9 and 4.9.12 require the verification of Engineered Safety Features Atmosphere Cleanup System-flowrates at least once per 31 days using certified fan curves, and the verification of fan curves based on observed flow rates and pressure drops at least once per 18 months.

By letter dated September 5, 1986 NNECO requested changes to the technical specifications to perfonn the surveillance air flow measurements on ESF filter systems by direct flow measurement techniques.

The staff has reviewed the proposed changes to the technical specifi-cations and has concluded that direct flow measurement (by a traversing pitot tube flow sensor) provides a more accurate flow indication than that obtained by the fan flow delta-P curves currently specified as the l

measurement toni in the technical specifications. The staff considers the proposed flow measurement method to be superior to the existing fan flow delta-P curves and, therefore, approves the technical specification chence.

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3.0 ENVIRONMENTAL CONSIDERATION

This amendment involves changes to the surveillance requirements. The staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite and that there is no significant increase in individual or cumulative oocupational radition exposure. The Commission has previously. issued a proposed findina that this amendment involves no significant hazards consideration and there has been no public comment on such finding. Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).

Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.

4.0 CONCLilSION The staff has concluded, based on the considerations discussed above, that:

(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (?) such activities will be conducted in compliarce with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public.

Date of Issuance: APR 7 1987 Principal Contributors:

E. Doolittle R. Fell l

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r ATTACHMENT TO LICENSE AMENDMENT N0. 2 s

FACILITY OPERATING LICENSE NO. NPF-49 DOCKET NO. 50-423 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages as indicated. The revised pages are identified by the captioned amendment number and contain vertical lines indicating the areas of change. Overleaf pages* have been provided to maintain document completeness.

REMOVE INSERT 3/4 6-37*

3/4 6-37 3/4 6-38 3/4 6-38 3/4 6-39 3/4 6-39 l

3/4 6-40*

3/4 6-40 3/4 7-15 3/4 7-15 3/4 7-16 3/4 7-16 3/4 7-19*

3/4 7-19 3/4 7-20 3/4 7-20 3/4 7-21 3/4 7-71 3/4 7-22*

3/4,7-22 3/4 9-13 3/4 9-13 3/4 9-14 3/4 9-14 i

l I

I l

I i

i t

9.

CONTAINMENT SYSTEMS g.

3/4.6.5 SUBATMOSPHERIC PRESSURE CONTROL SYSTE!!

STEAM JET AIR EJECTOR LIMITING CONDITION FOR OPERATION 3.6.5.1 The inside and outside isolation valves in the steam jet air ejector suction line shall be closed.

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

ACTION:

With the inside or outside isolation valves in the steam jet air ejector suction line not closed, restore the valve to the closed position within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 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 and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS 4.6.5.1.1 The steam jet air ejector suction line outside isolation valve shall be determined to be in the closed position by a visual inspection prior to increasing the Reactor Coolant System temperature above 200 F and at least once per 31 days thereafter.

4.6.5.1.2 The steam jet air ejector suction line inside isolation valve shall be determined to be locked in the closed position by a visual inspection prior to increasing the Reactor Coolant System temperature above 200 F.

MILLSTONE - UNIT 3 3/4 6-37

CONTAI! GENT SYSTEMS 3/4.6.6 SECONDARY CONIAI! GENT i

I SUPPLEMENEARY LEAK COLLECTIN AND RELEASE SYSTEM LIMITING C N DITI N FOR OPERATI N -

3.6.6.1 TW independent Supplementary Leak Collection and Release Systems shall be OPERABLE.

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

ACTION:

With one Supplementary Leak Collection and Release System inoperable, l

restore the inoperable system to OPERABLE status within 7 days or be in j

at least HCfr STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHtfrDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

4 SURVEILIANCE REQUIREMENTS j

Each supplementary Leak Collection and Release System shall be 4.6.6.1 demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate of 9,500 cfm +10% and that the system operates for at least 10 continuous hours with the heaters operating; i

b.

At least once per 18 months or (1) after any structural i

maintenance on the HEPA filter or charcoal adsorber housings, l

or (2) following painting, fire, or chemical release in any ventilation zone comunicating with the system by:

1 1)

Verifying that the system satisfies the in-place I

penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses the test procedure guidance in i

Regulatory Positions C.5.a, C.5.c, and C.5.d of Regulatory Guide 1.52, Revision 2, March 1978,* and the system flow rate is 9,500 cfm +10%;

2) verifying, within 31 days after removal, that a laboratory '

analysis of a representative carbon s sagle obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of l

Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%; and 4

)

3)

Verifying a system flow rate of 9,500 cfm +10% during system operation when tested in accordance with ANSI 7

N510-1980.

i 1

MILLSTONE -- WIT 3 3/4 6-38 Amendment No. 2

CCt; TAI!GGNT SYSTEMS SURVEILLANCE PEOMIREMENTS (Continued) c.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation, by-i verifying, within 31 days after remov41 that a laboratory analysis of a representative carbon sample obtained* in i

accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, 4

Revision 2, March 1978,* for a 'anthyl iodide penetration of less than 0.175%:

d.

At least once per 18 months by:

1)

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6.25 inches Water Gauge while operating the system at a flow j

rate of 9,500 cfm 110%,

2)

Verifying that the system starts on a safety Injection test signal, f

3)

Verifying that each system produces a negative pressure of greater than or equal to 0.25 inch Water Gauge in the annulus within 50 seconds after a start signal, and 4) verifying that the heaters dissipate 50 1 5 kW when tested in accordance with ANSI N510-1980.

l g

After each complete or partial replacement of a HEPA filter e.

bank, by verifying that the cleanup system satisfies the i

j-in-place penetration and bypass leakage. testing acceptance criteria of lesn ther 0.05% in accordance with ANSI N510-1980 for a DOP test aeroc 01 while operating the system at a flow rate of 9,500 cfm flot; and f.

After each complete of partial replacement of a charcoal i

adsorber bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than 0.05% in accordance with ANSI N510-1980 for a halogenated hydrocarbon refrigerant ' test gas while operating the system at a flowrate of 9,500 cfm 110%.

l

ANSI N510-1980 shall be used in place of ANSI N510-1975 referenced in Regulatory Guide 1.52, Revision 2, March 1978.

i l

MILLSIONE - UNIT 3 3/4 6-39 Amendment No. 2

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I CONTAINMENT SYSTEMS ENCLOSURE BUILDING INTEGRITY LIMITING CONDITION FOR OPERATION ENCLOSURE BUILDING INTEGRITY shall be maintained.

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

ACTION:

.Without ENCLOSURE BUILDING INTEGRITY, restore ENCLOSURE BUILDING INTEGRITY

-within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 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 and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

' SURVEILLANCE REQUIREMENTS ENCLOSURE BUILDING INTEGRITY shall be demonstrated at least once per 4.6.6.2 31 days by verifying that each door in each access opening is closed except when the access opening is being used for normal transit entry and exit.

)

3/4 6-40 MILI. STONE - UNIT 3.

A L

PIANT SYS"1lNS f

3/4.7.7 CatmtOL ROOM EMERGENCY VENTILATION SYSTDI LIMITING CW DITION FOR OPERATI N 3.7.7

'Ivo independer t Control Room Daergency Air Filtration Systems shall be OPERABLE.

APPLICABILITY: All HDDES.

ACTION:

MODES 1, 2, 3 and 4:

With one Control Room Emergency Air Filtration System inoperable, restore the inoperable system to OPERABLE status within 7 days 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 SHUIDOWN within the follwing 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

MODES 5 and 6:

a.

With one Cuatrol Room Deergency Air Filtration System inoperable, restore the inoperable system to OPERABLE status I

within 7 days or initiate and maintain operation of the remaining OPERABLE Control Room Emergency Afr Filtration System in the recirculation mode.

b.

With both Control Room Emergency Air Filtration Systems 2

inoperable, or with the OPERABLE Control Room Emergency Air Filtration System required to be in the recirculation mode by ACTION a. not capable of being powered by an OPERABLE emergency power source, suspend all operations involving CORE ALTERATI W S or positive reactivity changes.

SURVEILLANCE REQUIRD1ENTS 4.7.7 Each Control Room Emergency Air Filtration System shall be demonstrated OPERABLE:

At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months by verifying'that the control room air a.

temperature is less than or equal to 95 F; b.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, frora the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate of 1,120 cfm +20% and that the system operates for at least 10 continuous hours with the l

heaters operating; l

l MI O 7CNE - UNIT 3 3/4 7-15 Amendment tio. 2 l

l

. _ ~ - - -

PIANT SYSTEMS SURVEILIANCE REQUIREMENTS (Continued)

I At least once per 18 months or (1) after any structural' c.

maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire, or chemical release in any ventilation zone connunicating with the system by:

1 1)

Verifying that the system satisfies the in-place penetration and bypass leakage testing acceptance criteria i

of less than 0.05% and uses the test procedure guidance in I

Regulatory Posit' ion C.S.a, C.5.c, and C.5.d of-Regulatory Guide 1.52, Revisions 2, March 1978,* and the system flow rate is 1,120 cfm f20%;

2)

Verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory l

Guide 1.52, Revision 2, March 1978,* meets the laboratory l

testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%; and i

3) verifying a system flow rate of 1,120 cfm f20% during system operation when tested in accordance with ANSI l

E10-1980.

i

~ dsorber operation, by l

d.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal a

verifying, within 31 days after removal, that a laboratory i

analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide

' 52, Revision 2, March 1978,* meets the laboratory testing

..criteria of Regulatory Position C.6.a of Regulatory Guide 1.52,-

Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%;

e.

At least once per 18 months by:

1 1) verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6.75 j

inches Water Gauge while operating the system at a flow l

rate of 1,120 cfm 120%;

2)

Verifying that the system maintains the control room at a positive pressure of greater than or equal to 1/8 inch Water Gauge at less than or equal to a pressurization flow of 230 cfm relative to adjacent areas during system operation; and 3)

Verifying that the heaters dissipate 9.4 11 kW when tested in accordance with ANSI N510-1980.

}

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MILIS1ME - UNIT 3 3/4 7-16 Amendment No. 2 1

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PLANT SYSTEMS

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SURVEILLANCE-REQUIREMENTS (Continued)-

r c.

At least once per.18 months or following a major alteration of the control room envelope pressure boundary by:

1.

Verifying that the. control room envelope is isolated in response to a Control Building Isolation test signal,

. 2.

Verifying that 'after_ a 60 second time delay following a Control Building Isolation test signal, the control room envelope pressurizes to greater than or. equal to 1/8Einch W.G. relative-i to.the outside atmosphere, ar.d 3.

Verifying that the positive pressure of Specification 4~.7.8.c.2 is maintained for greater than or equal to 60 minutes.

1 l,

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i MILLSTONE - UNIT 3 3/4~7-19

i 1

PLANT SYSTEMS i

3/4.7.9 AUXILIARY BUILDING FILTER SYSTEM j

LIMITING CONDITION FOR OPERATICH j

shall be 3.7.9 Two independent Auxiliary Building Filter Systems OPERABLE.

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

ACTION:

Auxil'iary Building Filter System inoperable, restore the With one i

inoperable system to OPERABLE status within'7 days 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 SHUIDONN within the following 1

I I

30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

1 SURVEILLANCE PEyJIREMDirS l;

4.7.9 Each Auxiliary Building Filter System shall be demonstrated i

OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by l

initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate l

of 30,000 cfm fl0% and that the system operates for at least 10 1

continuous hours with the heaters operating; I

b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings l

or (2) following painting, fire, or chemical release in any l

ventilation zone commanicating with the system by:

1) verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria l

of less than 0.05% and uses the test procedure guidance in j

Regulatory Positions C.5.a, C.5.c, and C.S.d of Regulatory i

Guide 1.52, Revision 2, March 1978,* and the system flow

)

rate is 30,000 cfm 110%;

4 I

2) verifying, within 31 days after removal, that a laboratory f

analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory oulde 1.52, Revision 2, March 1978,* meets the laboratory testing criteria of Regulatory Position C.6.a' of l

Regulatory Guide 1.52, Revision 2, March 1978,* for a J

}

methyl iodide penetration of less than 0.175%; and 4

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1iILLSICHE - UNIT 3 3/4 7-20 Amendment No. 2

i i-i

_ PLANT SYSTEMS

(

't SURVEILIANCE REQUIREMDrFS

~

verifying a system f1w rate of 30,000 cfm +10% during 3) system operation een tested in accordance with ANSI N510-1980.

c.

After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation, by 1

verifying, within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide j

J 1.52, Revision 2, March 1978,* meets the laboratory testing I

criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, 1

Pavision 2, March 1978,* for a methyl iodide penetration of less than 0.175%;

I J

d.

At least once per 18 months by:

l 1) verifying that the pressure drop across the combined HEPA i

filters and charcoal adsorber banks is less than 6.8 inches Water Gauge while operating the system at a flw i

rate of 30,000 cfm +10%,

I 2) verifying that the system starts on a safety Injection l

test signal, and i

3) verifying that the heaters dissipate 180 +18 kW when 4

i

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tested in accordance with ANSI N510-1980.

e.

After each complete or partial replacement of a HEPA filter i

bank, by verifying that the cleanup system satisfics the in-place penetration and. bypass leakage testing acceptance i

criteria of less than 0.05% in accordance with ANSI N510-1980 for a DOP test aerosol while operating the system at a flw i

rate of 30,000 cfm +10%; and f.

After each complete or partial replacement of a charcoal adsorber bank, by verifying that the cleanup system satisfies the in-place penetration and bypass leakage testing acceptance criteria of less than'0.05% in accordance with ANSI N510-1980 for a halogenated hydrocarbon refrigerant test gas while.

operating the system at a f1w rate of 30,000 cfm +10%.

ANSI N510-1980 shall be used in place of ANSI N510-1975 referenced in Regulatory Guide 1.52, Revision 2, March 1978.

l MILIXIONE - UNIT 3 3/4 7-21 Amendment No. 2 3

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PLANT SYSTEMS 3/4.7.10 SNUBBERS LIMITING CONDITION FOR OPERATION 3.7.10 All snubbers shall be OPERABLE.

The only snubbers excluded from the requirements are those installed on nonsafety-related systems and then only if their failure or failure of the system on which they are installed would have no adverse effect on any safety-related system.

APPLICABILITY:

MODES 1, 2, 3, and 4.

MODES 5 and 6 for snubbers located on systems required OPERABLE in those MODES.

ACTION:

With one or more snubbers inoperable on any system, within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months replace or re-store the inoperable snubber (s) to OPERABLE status and perform an engineering eval-uation per Specification 4.7.10g. on the attached component or declare the attached system inoperable and follow the appropriate ACTION statement for that system.

SURVEILLANCE REQUIREMENTS 4.7.10 Each snubber shall be demonstrated OPERABLE by performance of the following augmented inservice inspection program and the requirements of Specification 4.0.5.

a.

Inspection Types As used in this specification, type of snubber shall mean snubbers of the same design and manufacturer, irrespective of capacity, b.

Visual Inspections Snubbers are categorized as inaccessible or accessible during reactor operation.

Each of these groups (inaccessible and accessible) may be inspected independently according to the schedule below.

The first inservice visual inspection of each type of snubber shall be performed after 4 months but within 10 months of commencing POWER OPERATION and shall include all snubbers.

If all snubbers of each type are found OPERABLE during the first inservice visual inspection, the second inservice visual inspection shall be performed at the first refueling outage. Otherwise, subsequent visual inspections shall be performed in accordance with the following schedule:

No. of Inoperable Snubbers of Subsequent Visual Each Type per Inspection Period Inspection Period * **

0 18 months 1 25%

1 12 months i 25%

2 6 months i 25%

3,4 124 days i 25%

5,6,7 62 days i 25%

8 or more 31 days i 25%

The inspection interval for each type of snubber shall not be lengthened more than one step at a time unless a generic problem has been identified and corrected; in that event the inspection interval may be lengthened one step the first time and two steps thereafter if no inoperable snubbers of that j

type are found.

- The provisions of Specification 4.0.2 are not applicable.

MILLSTONE - UNIT 3 3/4 7-22 w

f t

REFUELING OPERATICNS 3/4.9.12 IUEL BUILDING EXHAUST FILTER SYSTEM LIMITING CONDITION FOR OPERATION 3.9.12 Two independent Fuel Building Exhaust Filter Systems shall be OPERABLE. At least one Fuel Building Exhaust tilter System shall be in operation whenever any evolution involving r,vement of fuel within the storage pool or crane operations with loadr, over the storage pool is in progress.

APPLICABILITY: Whenever irradiated fue) is in the storage pool.

ACTICE:

a.

With one Fuel Building Exhaust Filter System inoperable, fuel movement within the storage pool or crane operation with loads over the storage pool may proceed provided the OPERABLE Fuel Building Exhaust Filter System is capable of being powered from an OPERABLE emergency power source and is in operation and discharging through at least one train of HEPA filters and charcoal adsorbers, b.

With no Fuel Building Exhaust Filter System OPERABLE, suspend all operations involving movement of fuel within the storage pool or crane operation with loads over the storage pool until at least one Fuel Building Exhaust Filter System is restored to OPERABLE status.

c.

We provisions of Specifications 3.0.3 and 3.0.4 are not applicable.

SURVEILLANCE REQUIREMENTS 4.9.12 he above required Fuel Building Exhaust Filter Systems shall be demonstrated OPERABLE:

a.

At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying a system flow rate of 20,700 cfm +10% and that the system operates for at least 10 continuous hours with the heaters operating; b.

At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire, or chemical release in any ventilation zone communicating with the system by:

l l

MILLSENE - UNIT 3 3/4 9-13 Amendment No. 2

t

<J REFUELING OPERATIONS SURVEILIANCE P_8?fIREMENTS (Continued) verifying that the cleanup system satisfies the in-place 1) penetration and bypass leakage testing acceptance criteria of less than 0.05% and uses-the test procedure guidance in i

Regulatory Positions C.5.a, C.5.c, and C.S.d of Regulatory Guide 1.52, Revision 2, March 1978,* and the system flow 4

rate is 20,700 cfm flot; j

2) verifying,. within 31 days after

rentwal, that a

laboratory analysis of a representative carbon sample i

obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,* meets the i

l laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978,* for a t

3 methyl iodide penetration of less than 0.175%; and j

3) verifying a system flow rate of 20,700 cfm +10% during

~

i system operation when tested in accordance with - ANSI I

N510-1980.

1 After every 720 hours0.00833 days 0.2 hours 0.00119 weeks 2.7396e-4 months of charcoal adsorber operation by verifying, f

c.

within 31 days after removal, that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978,*

meets the laboratory testing criteria of Regulatory Position C.6.a y

of Regulatory Guide 1.52, Revision 2, March 1978,* for a methyl iodide penetration of less than 0.175%;

J J

i d.

At least once per 18 months by:

a 1) verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is less than 6.8 inches Water Gauge while operating the system at a flow rate of 20,700 e

)

l cfm flot.

1 l

i

}

1 MILLSTONE - LINIT 3 3/4 9-14 Amendment No. 2 1

~..., - - _ _... _. _. _, _.. _, _, _. _ _ - - -,. _ - - - - _ -. - _., _ - _ - - - _ - - _ - - -. _. - - -, _ _,. - - -.. -. _, _. -,. - _. - - _ _

--

ML20209A838

Contents

Text

1.0 INTRODUCTION

3.0 ENVIRONMENTAL CONSIDERATION

4.0 CONCLUSION

Dear Mr. Mroczka:

SUBJECT:

Enclosures:

1.0 INTRODUCTION

3.0 ENVIRONMENTAL CONSIDERATION

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ML20209A838

Text

1.0 INTRODUCTION

3.0 ENVIRONMENTAL CONSIDERATION

4.0 CONCLUSION

Dear Mr. Mroczka:

SUBJECT:

Enclosures:

1.0 INTRODUCTION

3.0 ENVIRONMENTAL CONSIDERATION

Navigation menu

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