05000250/LER-1979-029-03, /03L-0:on 791002,during Power Operation,Condensate Storage Tank Contained Less than 185,000 Gallons Required by Tech Specs.Caused by Condenser Leak & Resin Bed Depletion.Plant Changes & Mods Scheduled

/03L-0:on 791002,during Power Operation,Condensate Storage Tank Contained Less than 185,000 Gallons Required by Tech Specs.Caused by Condenser Leak & Resin Bed Depletion.Plant Changes & Mods Scheduled

ML17338B238
Person / Time
Site:	Turkey Point
Issue date:	10/23/1979
From:	Schoppman M FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17338B237	List: 05000250/LER-1979-029, Forwards LER 79-029/03L-0 05000250/LER-1979-029-03, /03L-0:on 791002,during Power Operation,Condensate Storage Tank Contained Less than 185,000 Gallons Required by Tech Specs.Caused by Condenser Leak & Resin Bed Depletion.Plant Changes & Mods Scheduled
References
LER-79-029-03L, LER-79-29-3L, NUDOCS 7911060466
Download: ML17338B238 (3)

LER-1979-029, /03L-0:on 791002,during Power Operation,Condensate Storage Tank Contained Less than 185,000 Gallons Required by Tech Specs.Caused by Condenser Leak & Resin Bed Depletion.Plant Changes & Mods Scheduled

Event date:
Report date:
2501979029R03 - NRC Website

text

NRC FORM 266 I7.77 I LlCENSEE EVENT REPORT U. S. NUCLEAR REOUL*TORYCOMMISSION 1

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2 7] 9 30 8 I OQCXST,VUMSKR 98 93 EVENT OATS 74 VENT OESCRIPTION ANO PRCBABLF. CONScOUcNCES QIQ d f about 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> durin ower o eration Li~lOt LICENSE TYP4 40 97 <<*7 38 0

1S RKPQRT OATS 30 the Condensate Storage Tank (CST) contained less than the 185,000 gallons required Qy, TS 3.8.1.c.

Operation in this mode is permitted by TS 3.8.3.

The CST inventory during this interval was not reduced below approx.

170,000 S

gallons.

The only effect of having a reduced volume in the CST is illustrated in FSAR Fig. 9.11-1.

Reference recent similar occurrence

~~03 LER 251 79 17 7

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REPORTABLE OCCURRENCE 250-79-29 LICENSEE EVENT REPORT PAGE TWO Additional Event Descri tion and Probable Conse uences:

For a period of about 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> during power operation, the Condensate Storage Tank (CST) contained less than the 185,000 gallons required by TS 3.8.l.c.

Operation in this mode is permitted by TS 3.8.3.

The CST inventory during this interval was not reduced below approximately 170,000 gallons.

The only effect of having a reduced volume in the CST is illustrated in FSAR Figure 9.11-1.

Similar events

(attributed to the combined effects of higher-than-normal blowdown and resin bed depletion) were reported as::

y LER 250-78-4 LER 250-78-11 LER 250-78-12 LER 251-78<<7 LER 251-79-14 LER 251-79-17 Additional Cause Descri tion and Corrective Actions:

There were no equipment functional problems associated with this event.

Increased wa er eman ter demand for steam generator blowdown as a result of a condenser leak combined d

with reduced water treatment plant output (as a result of resin bed depletion) resulte in CST level decreasing to less than the TS 3.8.1.c limit.

Pl t

hanges and modifications (to reduce the potential exposure to events of this an c an ded type) are currently scheduled.

Additional water storage capacity is being provi e as a portion of the planned upgrade to the Demineralized Water/Deareation System.

This modification is currently scheduled to be completed during the third quarter of 1980.

A Steam Generator Blowdown Recovery System will be installed on each of the nuclear units.

The modification is currently scheduled to be completed on Unit No.

4 during the second quarter of 1981 and on Unit No.

3 during the second quarter of 1982.

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