ML050190199

Sample Analysis - IR 05000155-04-003 (DNMS)

ML050190199
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	01/04/2003
From:	Condra D Oak Ridge
To:	Martin C Division of Nuclear Materials Safety III
References
IR-04-003
Download: ML050190199 (3)

Text

O R I S E O A K R I D G E INSTITUTE F O R S C I E N C E AND E D U C A T I O N January 4,2005 Mr. Christopher Martin U.S. Nuclear Regulatory Commission Region I11 SO 1 Warrenville Road Lisle, IL 60532-435 1

SUBJECT:

ANALYTICAL RESULTS FOR SOIL SAMPLES COLLECTED NOVEMBER 2, 2004 FROM BIG ROCK POINT NUCLEAR POWER STATION, CHARLEVOIX, MICHIGAN [INSPECTION REPORT NO. 05000155/2004-003](RFTA NO.05-001)

Dear Mr. Martin:

The Environmental Survey and Site Assessment Program (ESSAP) of the Oak Ridge Institute for Science and Education (ORISE) received two soil samples on November 15,2004 that were collected at Big Rock Point Nuclear Power Station. The samples were analyzed by gamma spectroscopy (Procedure CP1, Revision 14) and for tritium by liquid scintillation analysis (Procedure AP6, Revision 14 and Procedure CP4, Revision 3). The gamma spectroscopy and tritium results are presented in Tables 1 and 2, respectively.

ESSAP's Quality Control (QC) requirements were met for these analyses. The QC files are available for your review upon request.

We apologize for the delay in getting this letter report to you in a timely fashion. We experienced several problems with the equipment and counting instrumentation that are used in the analysis of tritium that were beyond our control.

If you have any questions, please call me at (865) 241-3242 or Wade Ivey at (865) 576-91 S4.

Sincerely, Dale Condra Laboratory Manager Environmental Survey and Site Assessment Program RDC:WPI:ar Enclosure cc: T. McLaughlin, NRC/NMSS/TWFN 7F27 E. Abelquist, ORISE/ESSAP E. Knox-Davin, NRC/NMSS/TWFN T8A23 T. Vitkus, ORISE/ESSAP File 1640 Distribution approval and concurrence: Initials ,, Date I ./

Teclmical Management Team Member ///-//aUzY Quality Manager /(q7-p 114 IMOY Operated by Oak Ridge Associated Universities for the U.S. Department of Energy

ORISE TABLE 1 SELECTED GAMMA EMITTING RADIONUCLIDE CONCENTRATIONS IN SOIL SAMPLES BY GAMMA SPECTROSCOPY CP1, REVISION 14 BIG ROCK POINT CHARLEVOIX, MICHIGAN ESSAP NRC Region III -

Radionuclide Concentrationsa(pCi/g dry weight)

Sample ID Sample ID Mil-54 CO-60 CS-137 Eu-152 Eu-1 54 Eu-155 1640S0001 #7 O.OOb rt 0.01' -0.01 f 0.02 0.01 f 0.02 0.02 f 0.03 0.05 f 0.07 0.03 f 0.04 1640S0002 #8 -0.01 f 0.01 0.00 f 0.02 0.00 f 0.01 -0.02 0.03 0.01 f 0.07 0.00 f 0.03 aThc average MDC for a one hour count of soil in a 0.5L Marinelli for Mn-54 is 0.02 pCi/g, for Co-60 is 0.03 pCi/g, for Cs-137 is 0.03 pCi/g, for Eu-152 is 0.05 pCi/g, for Eu-154 is 0.12yCi/g, and for Eu-155 is 0.03 pCi/g.

bZero values are due to rounding.

"Uncertainties represent the 95% confidence level, based on total propagated uncertainties.

Y f

ORISE TABLE 2 TRITIUM CONCENTRATIONS IN SOIL SAMPLES BY LIQUID SCINTILLATION ANALYSIS AP6, REVISION 14; CP4, REVISION 3 BIG ROCK POINT CHARLEVOIX, MICHIGAN

~~1640SOOOl I #7 I -2.9%3.gb 11 11 1640S0002 I #8 I -0.6 f 3.5 I1 "The average MDC for a one hour count for tritium is 6.4 pCi/g.

buncertainties represent the 95% confidence level, based on total propagated uncertainties.