ML17284A849

Proposed Tech Specs,Revising SR 3.5.2.2 Re Condensate Storage Tank Water Level

ML17284A849
Person / Time
Site:	Columbia
Issue date:	07/29/1999
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17284A848	List: ML17284A847 ML17284A849
References
NUDOCS 9908060098
Download: ML17284A849 (11)

Text

REQUEST FOR AMENDMENT TECHNICAL SPECIFICATION SR 3.5.2.2 CONDENSATE STORAGE TANK WATER LEVEL~Attachment 3 Marked-Up Version of Technical Specification 3.5.2.2 and Associated Bases 9908060098 990729 POa aaaCV 0S000S97 P PDR K'*?4',p'l 1 ECCS-Shutdown 3.5.2 SURVEILLANCE REQUIREMENTS continued SURVEILLANCE FREQUENCY SR 3.5.2.2 Verify, for the required High Pressure Core Spray (HPCS)System, the: a.Suppression pool water level is a 18 ft 6 inc es or A.8 b.Condensate s e tank (CST)water.lev is a g.ft in a single'ST or ft in eac CST.'f.I 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> SR 3.5.2.3 Verify, for each required ECCS injection/

spray subsystem, the piping is filled with water from the pump discharge valve to the injection valve.31 days SR 3.5.2.4'OTE One low pressure coolant injection{LPCI)subsystem may be considered OPERABLE during alignment and operation for decay heat removal, if capable of being manually realigned and not otherwise inoperable.

Verify each required ECCS injection/spray subsystem manual, power operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.31 days (continued)

WNP-2 3.5-9 Amendment No.449 150[

~As'%~4 k I-~l f u own B 3.5.2 BASES ACTIONS C.l C.2 0.1 0.2 and D.3 (continued) information, to determine if the components are out of service for maintenance or other reasons.It is not necessary to perform the Surveillances needed to demonstrate OPERABILITY of the components.

If, however, any required component is inoperable, then it must be restored to OPERABLE status.In this case, the Surveillances may need to be performed to restore the component to OPERABLE status.Actions must continue until all required components are OPERABLE.SURVEILLANCE REQUIREMENTS 7 g i/p'8/O~&g+-u c+e J l5 SR 3.5.2.1 and SR 3.5.2.2 The minimum water level of 18 ft 6 inches required for the suppression pool is periodically verified to ensure that the suppression pool will provide adequate net positive suction head (NPSH)for the ECCS pumps, recirculation volume (135,000 gallons consistent with the CST volume requirements described below), and vortex prevention.

With the suppression pool water level less than the required limit, all ECCS injection/spray subsystems are inoperable unless they are aligned to an OPERABLE CST.When the suppression pool level is<18 ft 6 inches, the HPCS System is considered OPERABLE only if it can take suction from the CST and the CST water level is sufficient to provide the required NPSH for the HPCS pump.Therefore, a verification that either the suppression pool water level is a 18 ft 6 inches or the HPCS System is aligned to take suction from the CST and the CST cont'ns~135 000 allons~q p of wat r..equi'valent to a level of ft in a sing e CS or.ft in each CSTg ensures that t e HPCS S stem ca supp y makeup'water'o t e.z qpc v~Po~o+,+~5uck/oi/rh d.7 6 i s The 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Frequency of these SRs was developed considering operating experience related to suppression pool and CST water level variations and instrument drift during the applicable MODES.Furthermore, the 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Frequency is considered adequate in view of other indications in the control room, including alarms, to alert the operator to an abnormal suppression pool or CST water level condition.

continued WNP-2 B 3.5-18 Revision 5

ECCS-Shutdown B 3.5.2 BASES (continued)

REFERENCES 1.FSAR, Section 6.3.3.4.2.10 CFR 50.36(c)(2)(ii).

WNP-2 B 3.5-20 Revision 5 O.l REQUEST FOR AMENDMENT TECHNICAL SPECIFICATION SR 3.5.2.2 CONDENSATE STORAGE TANI<WATER LEVEL~Attachment 4 Replacement Pages for Technical Specification 3.5.2.2 ECCS-Shutdown 3.5.2-SURVEILLANCE REQUIREMENTS continued SURVEILLANCE FREQUENCY SR 3.5.2.2 Verify, for the required High Pressure Core Spray (HPCS)System, the: a.Suppression pool water level is~18 ft 6 inches;or b.Condensate storage tank (CST)water level is w 14.8 ft in a single CST or a 9.1 ft in each CST.12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> SR 3.5.2.3 Verify, for each required ECCS injection/

spray subsystem, the piping is filled with water from the pump discharge valve to the injection valve.31 days SR 3.5.2.4 NOTE-One low pressure coolant injection (LPCI)subsystem may be considered OPERABLE during alignment and operation for decay heat removal, if capable of being manually realigned and not otherwise inoperable.

Verify each required ECCS injection/spray subsystem manual, power operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.31 days (continued)

WNP-2 3.5-9 Amendment'o.

449%ST 0 C