ML102000378

E-mail from Gepford to Bonser, Catawba Sump W/Identified SR-89 Activity

ML102000378
Person / Time
Site:	Catawba
Issue date:	05/15/2008
From:	Heather Gepford NRC/RGN-II
To:	Brian Bonser NRC/RGN-II
References
FOIA/PA-2010-0209
Download: ML102000378 (7)

Text

Loo, Wade From: Sent: To: Cc:

Subject:

Attachments:

Heather Gepford L.-f Thursday, May 15, 2008 8:04 AM Brian Bonser Wade Loo Catawba sump w/identified Sr-89 activity P5144123.JPG; P5144122.JPG; P5144124.JPG; P5144120.JPG; P5144121 .JPG Catawba received their quarterly composite sample results for the groundwater drainage sumps yesterday.

Aux Bldg Groundwater Drainage Sump A, WZ-A, had a positive indication of Sr-89. Specifically, the sample contained 0.925 +/- 0.4 pCi/I of Sr-89. MDA was 0.6 pCi/l.This activity is equal to 9.25E-10 uCi/ml. Release limit for Sr-89 in effluents is 8E-6 uCi/ml; release to sewer is 8E-5 uCi/ml.The licensee's immediate corrective actions were to resample the sump (composite sample) yesterday afternoon and change the sampling frequency to monthly. Corporate is working with their groundwater monitoring consultant to determine what, if any, additional actions should be taken.The aux bldg groundwater drainage sump is one of four sumps on site that will automatically discharge to the yard when a high level setpoint is reached. The discharge then drains to the yard drains which are routed to a holding pond. There is no indication at present of Sr-89 in the groundwater.

Pictures of the discharge piping, coming out of the sump, are attached.~1t A 1

Enclosure 4.11 RP/O/B/5000/013 Page 1 of 2 Event Notitication Report STATE:"-"IISIS Till CATAWBA NUCI..EAR SrlE IN NRC RECGION 2 MAKING AN EVENTNOTrIFICATION REPORT' EN #N.iTICATION UNIT CALLER'S NAMIE CALlBACK TELEPHONF

1. NRCPI'ERtATIONS Ot-FFICF.ER, UTIMFI.ATE ENS 1 (CIR) CONTACTED or I 8"1 .-2 174 (TSC-NRC OPERATION TELEPHONE NUMIBER: PRIMARY 301-816-510M) or 1-800-532-3469; BACKUPS -listl 1-301-95110550 or 1-800-4,19-3694:

[2id.l 1-301 -415, 0550; and f3rdl 1-301-415-1553 EVENT TIME &ZONE I- EV:,NT I1OWER/MODIi IWEFORE POWEIUMOC)lEA'TER

.II.I OATE (time) (zone) I 8-41R NON-EMERGENCY 10CFR72.75(c)

IMMEDIATE 4-11R NON-EMERGENCY 10CFI172.75(hl)ISFSt ISFSI EVENT CLASSIHICATION (GE, SAF- ALRIR, (I) TS Deviation for ISFSI (Ii ID)efect in ISFSI SSC NOUE) 50.72 7275 SSI) ...(2) Offsite Nification for ISFSIt (2)ý ISFSI Confinement System I'tlYSIC:At, PRO'ItCTI*ION Of l 'laNT OR (3) Offsite medical (ISFSI)MATERIALS 8-ITR NON-EMERGENCY 10 CFR 50.72(b)(2)

TRANSPORTATION 1 0 CFR 20) (liXA) Degraded Condition 24-11OUR NON-EMERGENCY ISFSI MATERIAIJtEXP(OUSI.R (M!I CI-1( 20) (ii)tB) Unanalyzed Condition Radiolugical Exposure I tWFR20.2202 (iv)(A) Valid System Actuation Fitness For Duty IOCFl26.73:

I-FtR NON-EMERGl*ENCY IIICFR50.72(h)(1) (v)(A) Safe S/D Capability Operating, License Deviation TS l)eviatiorr.pursumnt to IOCFR5(I.54(x) (v)(B) tIIR Capability Accidental Criticality or Lossf1lielt of Material (v)(C) Control of Radiological 24-11OUR NON-EMERGENCY ISFSI (v)(D) Accident Mitigation ISFSI Lost Safety Function 72.75(d)(I) 4-tlR NON-EMERGENCY 10CFR50.72(I)(2) (xii) Offsitc Medical (i) TSlRequired S/D (kiii) Lost ENS 30 DAY NON EMERGENCY (iv(A) -ECCS Discharge to RCS (xiii) List Emergency AssessmCnt 10C1R2O:2201 (iv)(B) RPS Actuation whet Rx is critical (xiii) Lost OfTsite Communications Theft, Lost or Missing Material (xi) Offsitc Notification (xiii) Emergency Siren Inoperable 60-DAY ovriONAI.

10CUR 50.730)( I)Inrvalid Specifikd Sysetem Actuation oTrWR UNSIPECIFIED REQUI REM ENT FIDENTIFY)

Retraction EVEN'T DEISCRIPTION (Include:

Systems affected.

actuations

& their initiating signals, causes, effect of event on plant.actions taken or planned. PARs etc.)CATE'GORY INITIATION SIGNAL Thirty new ground water monitoring wells were recently installed at Cattawba Nuclear REACTOR'!]II_

Station iii support of the Nuclear Energy Institute (NEI) ground water initiative.

The ESF ACTUJATION initial sairplingof one ofthese wells'displayed a level of Itritiurn that triggered the conltllunication protocol of the NEI initiative on ground water protection.

The tritium____ ECCS ACTIJATI" ON _____concentration for this well was 42,335 picocuries per liter (pCiI). Th) threshold tor St FLOW initiating the communication protocol is 20,000 pCi/I. This Wecll is inside the owner.LCO controlled area. Adjacent wells sirrotinding this well do not hIave similar tritium levels."the slation is continuing to investigate the source of the tritium identifted in this well.SYSTI'EM Samples from Ihe.remaining wells are far below the communication protocol threshold.

COMPONENT

__ There is no public health risk associated with this well sample. llTcre is no indication that tritium has migrated off the Catawba site in the ground water at the communication threshold.

Also this well is not a drinking water source arrd therefore, there is...... PRSONNEt.

ERROR OTH__ -ER no potential (lose to plant workers or the public..Continue ont Enelosure 4.11 page 2 of 2 if neetms~iry.

NOTIFICATIONS YES NO WILLt BlE ANYTIIING UNUSUAL OR NOT UNIDERSTOOD?

0E YEl:S 0 NO NRC RESII)ENT (Explain above)STATE(s) NC )I)ID All, SYSTEMS FUNCI1ON 0 YES 01 NO SC AS REQUIRtDJ (Explain ablxe)LO.CAl. York County MOI)E OF OPERATI(oN UNTIL E'STIMATED Gastonl CORII 17CTI): IRESTART I)AI.Nleklenkunr1, C01ntty O0111ERI GOV A(GFENCtES MIUI)lVI'IAESS SREL:ASE _. __......