ML063190414

Oak Ridge Institute for Science and Education (Orise); Ltr. Dated 11/08/2006; Analytical Results for Soil & Water Samples Associated with the San Onofre Nuclear Generating Station, San Clemente, California on 10/13/2006 (IR #050-00206/06-01

ML063190414
Person / Time
Site:	San Onofre
Issue date:	11/08/2006
From:	Condra D Oak Ridge Institute for Science & Education
To:	Robert Evans NRC/RGN-IV/DNMS/NMLB
References
IR-06-015
Download: ML063190414 (4)

Text

O A K RIDGE INSTITUTE FOR SCIENCE AND EDUCATlON November 8, 1006 Mr. Robert Evms U .S . NLK1ear Regul aloiy C o minis si o 11 Regioii IV: DNMS: NMLE Snite 400 6 11 Ryan Plaza Diive A-higton,TX 7601 1 SUJECT: ANALYTICAL RESULTS FOR THREE SOIL AND THREE WATER SAMPLES ASSOCIATED JWTH TI-IE SAN ONOFRE NUCLEAR GENERATING STATION, SAN CLEMBNTE, CALIFORNIA (INSPECTION REPORT nU 050-00206/06-015) [WTANQ. 06-OOI]

l l i e Oalr k d g e Institute for Science , i d Education (OIUSE)1-eceivedt h e e soil aiid tlx-ee n;ater saniples mociated with the Sail Onofi-e N~icle~ii- Generxing Station hi Saii Clemeiite, Gildoiiia on October 13, 2006. At your i-equest, the soil aiid water saiiiples were aidyzed by gammi spectroscopy (GS). The nciter saiiiples ma-e also analyzed for tiitium. The saniple ideiitiiicatioiis are listed hi Table I. Tlie GS and tritium data are pi-eseiited in Tables 2 a d 3 , respectively Tlie pei-t-hienrprocedure idemices :ire provided in the tables.

OIUSEs QLL~LLY Coiitrol (QC) requireemelits were met for these iiialyies. The QC files ire avdible ior your review upon request.

My coiitact hdonmtion is listed below. You may dso coiitict \Vde Ivcy Lit865.576.9 1S-l nidi einy questions or coiiuiients.

Dale Condra, Mailager Labor<ltol-J~

RD C/\vPI:ar Eiiclosui-es C: B. WAtsoii, N M S S I D \ W P I D D I S P 7E1S E. Abelqnist, ORISE E. Iiiios-Davhi, NRC/MSS/TFN T8&3 S. I i i r l ~OIUSE File 1724 D i s t r i b u t G n approvd and concurrence: Initials Technical Management Team Member . -+& 4

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TABLE 1 SAMPLE IDENTIFICATIONS AND COLLECTION DATA SAN ONOFRE NUCLEAR GENERATING STATION SAN CLEMENTE, CALIFORNIA ORISE NRC Region IV Collection Collection Sample ID Sample ID Date Time 1724S0001 soil 1 10/11/2006 4:25 I'M I 1724S0002 1724S0003 1724WOOO1 soil 2 soil 3 water 1 10/11/2006 10/ 11/2006 10/ 11/2006 4:40 I'M 9:09 AM 1724W0002 water 2 10/11/2006 9:30 AM 1724W0003 water 3 10/ 11/2006 9:51 AM San Onofre Nuclear Generating Station projecrs/1724/leners/2006-11-OSLener Report 3 soil & m a m samples

TABLE 2 CONCENTRATIONS OF SELECTED GAMMA EMITTING RADIONUCLIDES IN SOIL AND WATER SAMPLES BY GAMMA SPECTROSCOPY CPl, REVISION 15 SAN ONOFRE NUCLEAR GENERATING STATION SAN CLEMENTE, CALIFORNIA

/I I I Radionuclide Concentrations, TPUs, and MDG+

NRC Region IV (pCi/g or pCi/L)

II I I I I Co-60 I I

CS-137 1 1724S0001 I soil 1 / -0.01 k 0.03 I 0.02 5 0.03 1724S0002 soil 2 0.31 rt 0.05 11.09 rf: 0.36 1724S0003 soil 3 0.01 k 0.03 0.73 0.06 1724W0001 water 1 0.5 3.7 1.7 f 4.9 1724W0002 water 2 -0.9 2.4 -0.7 k 2.4 1724W0003 water 3 1.0 rf: 1.9 3.2 k 2.8

,>Therange of MDCs for the selected radionuclides in the soil samples is 0.03 p W g to 0.05 p W g .

he range of MDCs for the selected radionuclides in the m t e r samples is 3.2 pCi/L to 4.1 p W L .

CUncertainties represent the 95% confidence level, based on total propagated unceitainties.

San Onofre Nuclear Generating Station projects/1724/letters/2006-11-OSLetter Repoit 3 soil &water samples

TABLE 3 CONCENTRATION OF TRITIUM IN WATER SAMPLES BY LIQUID SCINTILLATION ANALYSIS AP2, REVISION 15; CP4, REVISION 3 SAN ONOFRE NUCLEAR GENERATING STATION SAN CLEMENTE, CALIFORNIA Tritium NRC Region IV Concentrations, Sample ID Sample ID TPUs, and MDCsa (pCi/ L) 1724W0001 water 1 740 k 130b (190) p ~ t f l pG 1724W0002 water 2 21,750 & 810 (190) QLEW?~

I' 1724W0003 I

water 3 I

80 k 110 (190)

. , .pciwf 4

.The MDCs are in parentheses.

LUncerrainties represent the 95% confidence level, based on total propagated uncenninties.

San Onofre Nuclear Generating Station projects/1724/leners/2006-11-08Letter Repon 3 soil & nmer samples