ML072400562

From kanterella
Jump to navigation Jump to search
ORISE-Oak Ridge Institute for Science and Education, Revision to Analytical Results for Three Soil Samples Associated with the Rancho Seco Nuclear Generating Station, Herald, California
ML072400562
Person / Time
Site: Rancho Seco
Issue date: 08/14/2007
From: Condra D
Oak Ridge Institute for Science & Education
To: Garcia E
NRC/RGN-IV/DNMS/FCDB
References
RFTA 06-003 IR-07-003
Download: ML072400562 (2)


Text

-4~ig~ist 11. 3007 h h . E i d o Garcia L.S. Nuclear Regulatoi3-Coiiiinissioii R-IV/DNfilS/I;CDE/N Suite 400 6 11 R y i Plaza Dm-e Arhigtoii, Ts 7601 1

SUBJECT:

REVISION TO ANALYTICAL RESULTS F O R T OIL s ASSOCIATED W I T H THE RANCHO SECO N U GEN G

, CALIFORNIA N REPORT #005000312~2007003)[RFTA NO. 06-0031

Dear A h . Garcia:

The Oak h d g e Iiistimte for Scieiice and Education (ORISE;)received t h e e soil saiiiples associated n-ith the Raiicho Seco Nuclear Geiieratiiig Statioii in IHerald, Califoriiia oii JLiiie 3,2007. A t your request, the soil saiiiples r e r e aiialyzed b!- gaiiiiiia specwoscopp (GS) for cobalt-60 (Co-6@),cesium-137 (Cs-137), aiid

-4mericiuiii-241 (-hi-241). The soil saiiiple ideiitificauoiis are listed in Table 1 aiid the GS data are preseiited hi Table 2. The pertiiieiit procedure references are pro~-idedin die tables.

ORISE's Quahty Coiiuol (QC) requiremeiits n-ere met for these aiialj-ses. The QC files are andable for your r e w x upoii iequest.

In the origiiial letter report dated JLI~J- 12, 3007,pCi/L as used as [lie reportiiig units for soil saiiiple conceiiuadoiis in Table 2. The correct reporciiig uiiics of pCi/g hai-e been 1 1 0 ~ x 7been iiiserted hito Table

1. \\-e apologize for an!- incoiimnieiice this reporciiig error may liai-e caused.

h1~-contact lllforiiiation is listed below. You iiiaj- also coiitact \Yade IT-ey a t 865.576.9184 n-idi an!-

questions or coiiiiiieiits.

Sincerelj-,

Dale Condra, Alaiiager Laborator3-RDCI\KPI:ar Eiiclosures C: T. Caiter. NRC/FSALE/D\TIlEP 7JlS E ;IbeIquis t, ORISE E IGioz-D ai-iii. NRC / FSh[E/TKFN SA133 S. Roberts. ORISE File 1695 1 D i s t r i b u t i o n a p p r o v a l arid c o n c u r r e n c e : 1 Initials I T'oice: S63.211.3242 Fas: S6S.241.3345 E-mad: r>nle.Coi?diai~oiflu.org

TABLE 1 SAMPLE IDENTIFICATIONS A N D COLLECTION DATA R A N C H O SECO NUCLEAR GENERATING STATION HERALD, CALIFORNIA ORISE N R C Region IV Collection Time Collection Date Sample I D Sample I D PDT 1 1695S0008 I

~ ~~~

NRC-1 I 6/27/2007 I 1222 1 1695S0009 I NRC-2 I 6/27/2007 I 13:30 1695S0010 F8991091SOOS2SS 6/26/2007 6:56 TABLE 2 CONCENTRATIONS O F SELECTED GAMMA E M I T T I N G RADIONUCLIDES IN SOIL SAMPLES BY GAMMA SPECTROSCOPY, CP1, REVISION 15 R A N C H O SECO NUCLEAR GENERATING STATION HERALD, CALIFORNIA ORISE N R C Region IV Radionuclide Concentrations (pCi/g)

Sample I D Sample I D CO-GO CS-137 Am-241 1695S0008 NRC-1 0.00~ rt 0.02b , 0.03~ 0.02 zk 0.02 , 0.02 0.02 rt 0.03 , 0.04 1695S0009 NRC-2 0.57 If: 0.08 , 0.05 41.8 f 1.4 , 0.07 0.00 rt 0.09 , 0.13 1695S0010 F8991091SOOS2SS 2.61 zk 0.12 , 0.04 18.05 rt 0.60 , 0.05 0.07 f 0.06 , 0.06 values arc duc to rounding.

.~%cro "Uncertailitics rcpreseiit the 95% confidcncc lcvcl, based on total propagated unccrtaintics cMDCs arc after thc comma.

liancho Scco Nuclear Generating Station Projects\16Q5\lieports\ 1695-LR-001-l.doc