ML19031A899

LER 1976-030-03 for Salem Unit 1 Low Boron Concentration in Boric Acid Storage Tank Sample Analysis

ML19031A899
Person / Time
Site:	Salem
Issue date:	04/04/1978
From:	Librizzi F Public Service Electric & Gas Co
To:	Grier B NRC/IE, NRC Region 1
References
LER 1976-030-03
Download: ML19031A899 (5)

Text

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0 PSiffiG Public Service Electric and Gas Company 80 Park Place Newark. N.J. 07101 Phone 201 430-7000 April 4, 19.78  ::t>,  :;.".":!

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<o DO Mr. Boyce H. Grier £::'::1C:

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Director of USNRC  ?.::~:;;~

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Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 SUPPLEMENTAL REPORT REPORTABLE OCCURRENCE 76-30/0JL Pursuant to the requirements of Salem Generating Station Unit *No. 1 Technical Specifications, Section 6 . 9.. 1, we are submitting Supplemental Licensee Event Report for Reportable Occurrence 76-3Q/03L, to correct the original report after further investigation.

Very truly yours,

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Frank P. Libr{zz{

General Manager -

Electric Production CC: Director, Office of Inspection and Enforcement (3Q copiesl Director, Office of Management Information and Program Control (3 Copies)_

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The Energy People 95-2001 (400M) 9-77

Report Number:

e 76-30/03L Report Date: 12/20/77 Occurrence Date: 12/28/76 Facility: Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

No. 11 and 12 Boric Acid Storage Tanks Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 1, Reactor Power 17.5%

DESCRIPTION OF OCCURRENCE:

On 12/28/76, the Chemistry Foreman reported that No. 11 and No. 12 Boric Acid Storage Tank sample analysis for boron concentration to be 19,946 ppm and 19,968 ppm, respectively. These values being be-low the minimum concentration of 20,100 ppm as specified in Technical Specifications LCO paragraph 3.1.2.8, the Shift Supervisor imple-mented Technical Specifications action statement for LCO 3.1.2.8.

The Operations Department batched one batch of boric acid and had the Chemistry Department resample. The results indicated No. 11 at 20,335 ppm and No. 12 at 20,281 ppm. Technical Specifications action statement was cancelled.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Review of operating records failed to identify the cause for the apparent dilution. Chemistry records confirm the low boron concen-tration and batching results correspond to the expected increase in boron concentration.

ANALYSIS OF OCCURRENCE:

Technical Specification Action Statement "A" for LCO 3.1.2.8 states that with the boric acid storage system inoperable, restore the storage system to operable status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least Hot Standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and borated to a shutdown margin equivalent to at least 1% 6K/K at 200°F; restore the boric acid storage system to operable status within the next 7 days or be in cold shutdown within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. The boric acid storage system was returned to operable status within the 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> allowed by LCO 3.1.2.8, therefore, Technical Specification compliance was achieved.

LER 76.:30/03L 12/20/77 CORRECTIVE ACTION:

Operations Department personnel re-established the boron concentration in the Boric Acid Storage tanks and chemical analysis confirmed operability.

FAILURE DATA:

N/A Prepared by T. L. Spencer

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Manager - S SORC Meeting No. 119-77

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LER NO. __________

7_6-30/03L

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~RT DATE_:____l~2/~2_0~/_7_7 LICENSEE EVENT REPORT Update Report - Previous Report Date 1/10/77, CONTROL BLOCK 6

L.ICENSEE L.ICENSE EVENT NAME L.ICENSE NUM8ER TYPE TYPE REPORT REPORT CATEGORY TYi' SOURCE OOCl<ET NUM8ER EVENT CATE REPORT CATE

~ CON'Tw l.f§J L£J ~p I 51 0 I :--I 0 I 2 I 71 2J 1112121817161 69 74 10141 0141718J 75 .

EVENT DESCRIPTION

@li]I During Mode 1, the Chemistry Foreman reported that #11 and 12 Boric Acid!

7 89 so

@:§] Stora,ge Tank sample analysis for boron concentration to be 19,946 ppm 7 8 9

@Ji! and 19,968 ppm respectively. These values being below the minimum con-

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(2i]I centration of 20,100 ppm as specified in Tech Spec L:c.o. paragraph I 7 89 . . . ~

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3.1.2.8, the Shift Supervisor implemented Tech Spec (CONTINUED PAGE 2)

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SYSTEM* CAUSE COMPONENT COMPONENT ln'T;'1 COCE COOE COMPONENT cooe SUPl>L.IER MANUFACTURER VIOLATION

~ltlC.J 7 8 9 10 1LJ 11 IZIZIZIZIUZJ 12 17 W43 IZl91919!

44 . . 47 I.NJ 48 CAUSE DESCRIPTION

~I Review of operating logs failed to identify the cause of this event. I 9 so

@J!f 1 Chemical analysis after batching confirms the low boron concentration. I 7 8 9 1[@]-=--------------....----------------------------------------------------------~

89 ao FACILITY METMOOOF STATUS '!lol'OWER OTHS-fl STATUS OISCOVERY OISCOV£RV OESCRIPTION 1

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w. I1001117112 I NtA 9 ~13------------ I l.§J 45 Chemical Analysis

46. ao FORM OF ACTIVITY CONTENT REL.EASED OF REL.EASE AMOUNT OF ACTIVITY 1..0CATION OF REL.EASE GE 7 8

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PERSONNEL EXPoSURES

. NUM8ER TYPE* CESCRIPTION 1

I90 I 0 I 0,,I 1ZJ 12 In13;---------=-"-'=-=-----------------------------.....,.-----------------sod N/A j PERSONNEL INJURIES

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__,.,ii NUM8ER OESCRIPTION 7[IE!8 I90 I 0 I 0h II,_ 12:---------=N~/...;;.A=-* ao OFFSITE CONSEQUENC&s

~lg - .... N/A LOSS OR QAMAGE TO FACILITY GJ!! l~i i°ESCRIPTION N/A 1 a 10 PU8LICITY 1G:I11'::-----------------------..J.:14...C.,..--------~------------------~--------~

89 ao AOOITIONAl. FACTORS

[i!]I EVENT DESCRIPTION CONTINUED ON PAGE 2 (Attached) I 1 ag m 1!Il!l~---------------~--~--------------------------------------------------,;,,,.,1 ai m NAME: ___________..:T..:*:..*-'L=-=**-*_.S=o;.::e::.:!n.=.c::=.:::e~r=----- PHONE: (609)365-7000 Ext. Salem 528

LER 76-30/03L 12/20/77 EVENT DESCRIPTION (Continued)

Action Statement for L.C.O. paragraph 3.1.2.8. The Operations Department batched one batch of boric acid and had the Chemistry Department resample.

The results indicated No. 11 at 20,335 ppm and No. 12 at 20,281 ppm.

Technical Specifications Action Statement was cancelled. No redundant systems were available. This is the third occurrence of this type. (76-30/03L)