ML060950341
| ML060950341 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/14/2006 |
| From: | Condra D Oak Ridge Institute for Science & Education |
| To: | Snell W NRC/RGN-III |
| References | |
| BY-2006-01, FOIA/PA-2010-0209, IR-06-002, RFTA 06-001 | |
| Download: ML060950341 (3) | |
Text
OAK RIDGE INSTITUTE FOR SCIENCE AND EDUCATION hlarcli 14. 2006 bfr. W&am Snell L!.S. Nuclear Regulatory Commission Region I11 2443 Warrenvdle Road Lisle, IL 60532-4351
SUBJECT:
ANALYTICAL RESULTS FOR 21 WATER SAMPLES FROM THE VICINITY OF THE BYRON GENERATING STATION, BYRON, ILLINOIS
[INSPECTION REPORT NO. 0~0-454/2no~-on2j (RFTA NO. o6-oni)
Dear Mr. SneU:
'1'11~ Oak Ridge Institute for Science and Education (ORISE) received 21 mater samples on March 3, 2006 that wcre collected in the vicinity of the Byron Generating Station in Byron, Illinois on February 28, 2006. The samples wcre analyzed for tritium using a liquid scintillation analyzer (Procedures 4P2, Rrvision 15 and CP4, Revision 3). The samplc identifications and collection data are presented in Table 1. 'The u-itium data are presented in Table 2.
During a phone conversation on March 7, 2006, you indicated that one in ten water samples for which the tritium minimum detectable concentration (MDC) was 200 pCi/L should he counted by gairuna sprcu-oscopy (GS). ORISE selected samples BY-DW-06-1-06 (1689W0006) and BY-DW-06-1-16 (1689W0016) to be analyzed by GS (Procedure CP1, Revision 15). 'There wcre no radionuclides detected by GS. The MDCs for the GS results ranged from 4.5 pCi/L for Cs-137 to 8.2 pCi/L for Co-60.
ORISE's Quality Control (QC) requirements werc met for these analyses. The QC fdcs are available Tor your review upon request.
My contact information is listed below. You may also contact Wade Ivey at 865.576.9184 with any questions 01 comments.
- Smcerely, Dale Condra, Manager Laboratory RDC:WI:ar C:
T. McLauglilin, NRC/NMSS/TWFN 7F27 E. Abelquist, ORISE E. Ihox-Davin, NRC/NMSS/TWFN SA23 G. Bonano, NRC Region I11 S. Kirk, ORISE File 1689
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Distribution appoval and concurrence :
1 Initials Techtllcal Management Team Member I.-zsK Quality Manager I
L i p Voice: 865.241.3242 Fax: 865.241.3248 E - n d CondraD@orau.gov
TABLE 1 ORISE Sample NRC Region I11 Collection ID Sample ID Date Collection Time
TABLE 2 CONCENTRATIONS OF TRITIUM IN WATER SAMPLES BY LIQUID SCINTILLATION ANALYSIS AP2, REVISION 15; CP4, REVISION 3 BYRON GENERATING STATION BYRON, ILLINOIS MDCs %re in pareorhcsis.
U~ncrrtaintier rcpresent rhc 95% confidence level, bared on tofa1 propagated unccrtunuer Zero valnes arc dur to roundmg.