Text

Proposed Tech Specs Re Carbon Sample Testing
	ML20065N331
Person / Time
Site:	Millstone
Issue date:	04/20/1994
From:	; NORTHEAST NUCLEAR ENERGY CO.
To:	;
Shared Package
ML20065N272	List: B14826, Proposed Tech Specs Re Carbon Sample Testing; ML20065N269;
References
	B14826, NUDOCS 9404270112
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Docket No. 50-336 B14826 Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Carbon Sample Testing Marked-up Pages i

1 April 1994 9404270112 940420-PDR ADOOK 05000336 P

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CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 1.

Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of Regulatory Positions C.S.a. C.5.c and C.S.d of Regulatory Guide 1.52 Revision 2, March 1978, and the system flow rate is 9000 cfm i 10%.

2.

Verifying within 31 days after removal that a l'aboratory analysis of a representative carbon sample obtained in.accordance with Regulatory Position C.6.b of Regulatory Guide 1.52 Revision.

March 1978, meets the laboratory testing criteria of Regulat.-

Position C.6.a of Regulatory Guide" 1.52, Revision 2. March 1 8.$

3.

Verifying a system flow rate of 9000 cfm + 10% during system operation when tested in accordance with INSI N510-1975.

'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 representa-tive carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the labora~ tory testing criteria of Reg Tator Position C.6.a of Re'gulatory

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Guide 1.52, Revision 2. March 197 O

d.

At least once per 18 months by:

1.

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is < 6 inches Water Gauge while operating the syst'm at a flow rate of 9000 cfm 110%.

e

f 2.

Verifying that the system starts on an Enclosure Building Filtra-tion Actuation Signal (EBFAS).

3.

Verifying that each system produces a negative pressure of greater than or equal to 0.25 inces W.G. in the Enclosure Building Filtration Region within (1) minute after an EBFAS.

e.

After.each complete or partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove greater than or equal to

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99% of the DOP when they are tested in-place in accordanc ARSI J,s] y*1 " * "E M "*

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-ca h 29, 1990 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS k

4.7.6.1 Each control room emergency ventilation system shall be demonstrated OPERABLE:

a.

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 temperature is 1 100*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 absorber train and verifying that the system operates for at least 15 minutes.

i c.

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 connuni-cating with the system by:

1.

Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of 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 2500 cfm 10%.

2.

Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accor-dance with Regulatory Position C 6.b of Regulatory Guide 1.52,

(

Revision 2, March 1

, meets the laboratory testing criteria of Regulatory Pg

.a of Regulatory Guide 1.52, Revi-sion 2, March INJ# T e rbon sample shall have a removal efficiency of 195s er ent-3.

Verifying a system flow rate of 2500 cfm 10% during system operation when tested in accordance with ANSI N510-1975.

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 repre-sentative 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 Regula ef?hition C.6.a of Regulatory Guide 1.52, Revision 2, March 197. g e.

At least once per 18 months by:

1.

Verifying that the pressure drop across the ombined HEPA filters and charcoal adsorber banks is less than 6 inches Water Gauge while operating the system at a flow rate of 2500 cfm i 10%.

2.

Verifying that on a recirculation signal, the system automati-cally switches into a recirculation mode of operatinn with flow through the HEPA filters and charcoal adsorber banks.

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b ebr m, 22, 1^0s REFUELING OPERATIONS SURVE1LLANCE RE001REMENTS (Continued) 1.

, Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures'of Regulatory Positions C.S.a. C.5.c and C.S d of Regulatory Guide 1.52. Revi-sion 2 March 1978, and the system flow rate is 9000 cfm 110%.

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 19'BOe ts the laboratory testing criteria.of Regulatory Positio C.g(a f Regulatory Guide 1.52 Revision 2 March 1978.4 3.

Verifying a system flow rate of 9000 cfm i 10% during system operation when tested in accordance with ANSI N510-1975.

Af.ter 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 repre-sentative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52. RevMOTrR, March 1978, meets the laboratory testing criteria of gulatory osition C.6.a of Regulatory f:

Guide 1.52. Revision,2, March 1 d.

At least once per 18 months by:

j 1.

Verifying that the pressure drop across the combined HEPA filters and charecal adsorber banks is < 6 inches Water Gauge while operating the system at a flow rate of 9000 cfm 110%.

2.

Verifying that on a Spent Fuel Storage Pool Area high radiation 1

signal, the system automatically starts (unless alr2ady operating) and directs its exhaust flow through the HEPA filters and charcoal adsorber banks.

e.

After each complete) r! partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove greater than or equal to 99% of the DOP when they are tested in-place in accordance with ANSI N510-1975 while operating the system at a flow rite of 9000 cfm i10%.

A N9tn 03m3-CA shall bc used in plaat. of MST. Kiso'n *M% c i

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CONTAINMENT SYSTEMS BASES

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3/4.6.5 SECONDARY CONTAINMENT 3/4.6.5.1 ENCLOSURE BUILDING VENTILATION SYSTEM The OPERABILITY. of the enclosure building ventilation systems ensures that containment leakage occurring during LOCA conditions into the annulus will be filtered through the HEPA filters and. charcoal absorber trains prior to discharge to the atmosphere. This requirement is necessary to meet the assumptions used in the accident analyses and limit the site boundary radi-ation doses to within the limits of 10 CFR 100 during LOCA conditions.

3/4.6.5.2 ENCLOSURE BUILDING INTEGRITY ENCLOSURE BUILDING INTEGRITY ensures that the releases of radioactive materials from the primary containment atmosphere will be restricted to those leakage paths and associated leak rates assumed in the accident i

analyses. This restriction, in conjunction with operation of the enclosure.

building ventilation system, will limit the site boundary radiation doses to within the limits of 10 CFR 100 during accident conditions.

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REFUELI'G OPERATIONS N

BASES i

3/4.9.13 STORAGE POOL RADIATION MONITORING.

The OPERABILITY of the storage pool radiation monitors ensures that sufficient radiation monitoring capability is available to detect excessive radiation levels resulting from 1) the inadvertent lowering of the storage I,

pool water level or 2) the release of activity from an irradiated fuel assembly.

3/4.9.14 & 3/4.9.15 STORAGE POOL AREA VENTILATION SYSTEM The limitations on the storage pool area ventilation system ensures that all radioactive material released from an irradiated fuel assembly will be filtered through the HEPA filters and charcoal adsorber prior to discharge to the atmosphere. The'0PERABILITY of this system and the resulting lodine removal capacity are consistent with the assumptions of the accident analyses.

4 3/4.9.16 SHIELDED CASK The limitations of this specification ensure that in an event of a cask tilt accident 1) the doses from ruptured fuel assemblies will be within the assumptions of the safety analyses, 2) X,ff will remain s.95.

3/4.9.17 MOVEMENT OF FUEL IN SPENT FUEL POOL The limitations of this specification ensure that, in the event of a fuel assembly or a consolidated fuel storage box drop accident into a Region B or C rack' location completing a 4-out-of-4 fuel assembly geometry, X,ff WH1 remain S 0.95.

3/4.9.18 SPEflT FUEL POOL - REACTIVITY CONDITION The limitations described by Figures 3.9-la, 3.9-lb, and i 9-3 ensure that the reactivity of fuel assemblies and consolidated fuel stc. rage boxes.

introduced into the Region C spent fuel racks, are conservatively within the

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assumptions of the safety analysis.

The limitations described by Figure 3,9-4 ensure that the reactivity of the fuel assemblies, introducted into the i.egion A spent fuel racks, are conservatively within the assumptions of the safety analysis.

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t MILLSTONE - UNIT 2 B3/49-3 Amendment No. JJ, JE), JJ/,

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.i Docket No. 50-336 B14826 R

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Millstone Nuclear Power Station, Unit No. 2-Proposed Revision to Technical Specifications 1

Carbon Sample Testing Retyped Pages H

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April 199'4 1

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I CONTAlklENT SYSTElil SURVEILLANCE REQUIREMENTS (Continued) 1.

Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of Regulatory Positions C.S.a, C.5.c and C.5.d of Regulatory Guide 1.52, Revision 2, March 1978, and the system flow rate is 9000 cfm i 10%.

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.*

3.

Verifying a system flow rate of 9000 cfm 10% during system operation when tested in accordance with ANSI N510-1975.

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 representa-tive carbon sam >le obtained in accordance with Regulatory Position C.6.b of Regu'iatory Guide 1.52, Revision 2,

March 1978, meets the laboratory testing criteria of Regulatory Position C.G.a of Regulatory Guide 1.52, Revision 2, March 1978

l d.

At least once per 18 months by:

1.

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is 1

6 inches Water Gauge while operating the system at a flow rate of 9000 cfm i 10%.

2.

Verifying that the system starts on an Enclosure Building Filtra-tion Actuation Signal (EBFAS).

3.

Verifying that each system produces a negative pressure of greater than or equal to 0.25 inces W.G.

in the Enclosure Building Filtration Region within (1) minute after an EBFAS.

e.

After each complete or partial replacement of a HEPA-filter bank by -

verifying that the HEPA filter banks remove greater than or equal to-99% of the D0P when they are tested-in-place in accordance with ANSI N510-1975 while operating the system at a flow rate of 9000 cfm i 10%.

ASTM D3803-89 shall be used in-place of ANSI N509-1976 'as referenced in table 2 of Regulatory Guide 1.52. The laboratory test of charcoal should be conducted at a temperature of 30*C and a relative humidity of 95% within the tolerances specified by ASTM D3803-89.

Additionally, the charcoal sample shall have a removal efficiency of ;t 95%.

MILLSTONE - UNIT 2 3/4 6-26 Amendment No. g), 77, 0132

PLANT SYSTR Q SURVEILLANCE REQUIREMENTS 4.7.6.1 Each control room emergency ventilation system shall be demonstrated OPERABLE-a.

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 temperature is 1 100*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 absorber train and verifying that the system operates for at least 15 minutes, c.

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

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

1.

Veri fying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of 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 2500 cfm 10%.

2.

Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accor-dance 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, Revi-sion 2, March 1978.*

The carbon sample shall have a removal efficiency of 2 95 percent.

3.

Verifying a system flow rate of 2500 cfm 10% during system operation when tested in accordance with ANSI N510-1975.

I 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 repre-sentative 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.*

ASTM 03803-89 shall be used in place of ANSI N509-1976 as referenced in table 2 of Regulatory Guide 1.52.

The laboratory test of charcoal shculd be conducted at a temperature of 30*C and a relative humidity of 9C%

within the tolerances specified by ASTM D3803-89.

MILLSTONE - UNIT 2 3/47-17 Amendment No. 15, 77, Jpp, JJ7, om J75,J$$

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EL6ML_ SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 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 inches Water Gauge while operating the system at a flow rate of 2500 cfm i 10%.

2.

Verifying that on a recirculation signal, the system automati-cally switches into a recirculation mode of operation with flow through the HEPA' filters and charcoal adsorber banks.

l i

MILLSTONE - UNIT 2 3/4 7-17a Amendment No. 79,77,199,JJ7, on3 Jil,Ji?

1

]

j 4

REFUELING OPERATIQfG SURVEILLANCE REQUIREMENTS (Continued) 1.

Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures of Regulatory Positions C.S.a, C.5.c and C.S.d of Regulatory Guide 1.52, Revi-sion 2, March 1978, and the system flow rate is 9000 cfm i 10%.

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.*

3.

Verifying a system flow rate of 9000 cfm 10% during system operation when tested in accordance with ANSI N510-1975.

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 repre-sentative 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.*

d.

At least once per 18 months by:

1.

Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is s 6 inches Water Gauge while operating the system at a flow rate of 9000 cfm i 10%.

2.

Verifying that on a Spent Fuel Storage Pool Area high radiation signal, the system automatically starts (unless already operating) and directs its exhaust flow through the HEPA filters and charcoal adsorber banks.

e.

After each complete or partial replacement of a HEPA filter bank by verifying that the HEPA filter banks remove greater than or equal to 99% of the DOP when they are tested in-place in accordance with ANSI N510-1975 while operating the system at a flow rate of 9000 cfm i 10%.

ASTM D3803-89 shall be used in place of ANSI N509-1976 as referenced in table 2 of Regulatory Guide 1.52.

The laboratory test of charcoal should be conducted at a temperature of 30*C and a relative humidity of 95%

within the tolerances specified by ASTM D3803-89.

Additionally, the charcoal sample shall have a removal efficiency of ;t 95%.

MILLSTONE - UNIT 2 3/4 9-17 Amendment No. 77, l

0134 a

CONTAINEHT SYSTEMS BASES 3/4.6.5 SECONDARY CONTAINMENT 3/4.6.5.1 ENCLOSVRE BUILDING VENTILATION SYSTEM The OPERABILITY of the enclosure building ventilation systems ensures that containment leakage occurring during LOCA conditions into the annulus will be filtered through the liEPA filters and charcoal absorber trains prior to discharge to the atmosphere. This requirement is necessary to meet the assumptions used in the accident analyses and limit the site boundary radia-i tion doses to within the limits of 10 CFR 100 during LOCA conditions.

The laboratory testing requirement for tha charcoal sample to have a removal efficiency of 2 95% is more conservative than the value assumed in the accident analyses described in the Millstone Unit No. 2 Final Safety Analysis Report of 90%. A removal efficiency acceptance criterion of 2 95% will ensure that the charcoal has the capability to perform its intended safety function throughout the length of an operating cycle.

3/4.6.5.2 ENCLOSURE BUILDING INTEGRITY ENCLOSURE BUILDING INTEGRITY ensures that the releases of radioactive materials from the primary containment atmosphere will be restricted to those leakage paths and associated leak rates assumed in the accident analyses. This restriction, in conjunction with operation of the enclosure building ventilation system, will limit the site boundary radiation doses to within the limits of 10 CFR 100 during accident conditions.

NILLSTONE - UNIT 2 B 3/4 6-5 Amendment No.

0136 I

BEFUELING OPERATIONS BASES

}/4.9.13 STORAGE P0OL RADIATION MONITORING The OPERABILITY of the storage pool radiation monitors ensures that sufficient radiation monitoring capability is available to detect excessive radiation levels resulting from 1) the inadvertent lowering of the storage pool water level or 2) the release of activity from an irradiated fuel assembly.

3/4.9.14 & 3/4.9.15 STORAGE POOL AREA VENTILATION SYSTEM The limitations on the storage pool area ventilation system ensures that all radioactive material released from an irradiated fuel assembly will be.

filtered through the HEPA filters and charcoal adsorber prior to discharge to the atmosphere. The OPERABILITY of this system and the resulting iodine removal capacity are con::istent with the assumptions of the accident analyses.

The laboratory testing requirement for the charcoal sample to have a removal efficiency of ;t 95% is more conservative than the value assumed in the accident analyses described in the Hillstone Unit No. 2 Final Safety Analysis Report of 90%. A removal efficiency acceptance criterion of ;t 95% will ensure that the charcoal has the capability to perform its intended safety function throughout the length of an operating cycle.

3/4.9.16 SHIELDED CASK 1he limitations of this specification ensure that in an event of a cask tilt accident 1) the doses from ruptured fuel assemblies will be within the assumptions of the safety analyses, 2) K,n will remain 1 95.

3/4.9.17 MOVEMENT OF FUEL IN SPENT FUEL P0OL The limitations of this specification ensure that, in the event of a fuel assembly or a consolidated fuel storage box drop accident into a Region B or C rack location completing a 4-out-of-4 fuel assembly geometry, K,n will remain 1 0.95.

3/4.9.18 SPENT FUEL POOL - REACTIVITY CONDITION The. limitations described by Figures 3.9-la, 3.9-lb, and 3.9-3 ensure that the reactivity of fuel assemblies and consolidated fuel storage. boxes, introduced into the Region C spent fuel racks, are conservatively within the assumptions of the safety analysis.

l The limitations described by Figure 3.9-4 ensure that the reactivity of the fuel assemblies, introducted into the Region A spent fuel racks, are conservatively within the assumptions of the safety analysis.

l-MILLSTONE - UNIT 2 8 3/4 0-3 Amendment No. 79, 197, JJ7, om 15),159,171, l

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B14826, Proposed Tech Specs Re Carbon Sample Testing

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