ML103230097
| ML103230097 | |
| Person / Time | |
|---|---|
| Site: | University of Michigan |
| Issue date: | 11/17/2010 |
| From: | Condra D Oak Ridge Institute for Science & Education |
| To: | Snell W NRC/RGN-III |
| References | |
| DE-AC05-060R23100 IR-09-003 | |
| Download: ML103230097 (6) | |
Text
November 17,2010 Mr. Willlam Snell U. S. Nuclear Regulatory Commission Regon I11 2443 Warrenville Road Lisle, IL 60532-4351 ORISE CONTRACT NO. DE-AC05-060R23100
SUBJECT:
LETTER REPORT FOR ANALYTICAL RESULTS FOR FOUR SOIL SAMPLES FROM THE UNIVERSITY OF MICHIGAN FORD REACTOR, ANN ARBOR, MICHIGAN
[INSPECTION REPORT NOS. 05000002/2009003]
(RFTA NO. 10-OOl), DCN: 2026-LR-01-0
Dear Mr. Snell:
The Oak Ridge Institute for Science and Education (ORISE) received four soil samples on September 22,2010 from the Ford Reactor at the University of Michgan in Ann Arbor, Michigan. The samples were analyzed according to the 303 form supplied with the samples. The sample identification numbers are presented in Table 1. The gamma spectroscopy data are in Table 2. The gross alpha and gross beta data are in Table 3. The tritium, carbon-14, and iron-55 data are in Table 4. The pertinent procedure references are included with the data tables.
ORISE's Quality Control (QC) requirements were met for these analyses. The QC files are available for your review upon request. X deviation to procedure APl6-Determination of Iron-55 in Soil and Other Solid Matrices-was required. The deviation was documented in the task file and a copy of the deviation is included in the letter report.
My contact information is listed below. You may also contact Wade Ivey at 865.576.9184 with any questions or comments.
Sincerely, Dale Condra, Manager Laboratory RDC:WI:jc Enclosures C:
Electronic:
T. Carter, NRC/FSME/DWMEP T-8F5 File 2026 S. Roberts, ORISE T. Patterson, NRC/FSME/TWFN 8D42 T. Vitkus, ORISE 1 Distribution atmroval and concurrence :
I Initials Technical Review Quality Review RECEIVED NOV 1 9 2010
\\'ace: 865231.3242 1;as: 865.231.3238 E<-m~il Ualc.CotidraOorau.org
'.O.
Box 117 I Oak Ridge, TN 37831 I www.orise.orau.gov
hlo&fications to procedure AP16:
AP16, Revision 1: DETERMINATION OF IRON-55 IN SOIL AND OTHER SOLID MATRICES
- 1) Replace step 4.6.5 with Add 3 drops of 4900 HF to Qssolve the precipitate, heat in a water bath briefly if needed.
- 2) Replace step 4.6.6 with Carefully transfer the solution to a plastic scinullation vial with a transfer pipette. Rmse the centrifuge tube with 1mL of DI water and transfer to the scintdlation vial and add 12 mL of scintdlation cocktail. Mix the solution with vigorous shaking.
- 3) Replace steps 5.1.5 and 5.2.6 as in amendment 1 above.
- 4) Replace steps 5.1.6 and 5.2.7 as in amendment 2 above.
TABLE 1 ORISE Sample ID 2026S0001 2026S0002 2026S0003 2026S0004 SAMPLE IDENTIFICATIONS AND COLLECTION INFORMATION FORD REACTOR, UNIVERSITY OF MICHIGAN ANN ARBOR, MICHIGAN NRC Region I11 Collection Sample ID Time Collection Date UM-01 9/15/10 N D P ~
UM-02 9/15/10 NDP UM-03 9/16/10 NDP UM-04 9/16/10 NDP Iord Reactor - University of Michigan 2026-LR-01 -U
TABLE 2 ORISE Sample ID 2026S0001 2026S0002 2026S0003 2026S0004 CONCENTRATIONS OF SELECTED GAMMA EMITTING RADIONUCLIDES I N SOIL SAMPLES BY GAMMA SPECTROSCOPY CP1, REVISION 17 FORD REACTOR, UNIVERSITY OF MICHIGAN ANN ARBOR, MICHIGAN NRC Region I11 Sample ID UM-01 0.02 -t 0.04, 0.06 0.24 -t 0.03, 0.03 0.01 2 0.02, 0.05 -0.17' -t 0.05, 0.06 UM-02 0.01
+_ 0.04, 0.06 0.20 & 0.03, 0.04 2.37 -t 0.16, 0.05 -0.04 -t 0.03, 0.07 -0.51 -t 0.07, 0.12 UM-03
-0.02 +_ 0.03, 0.05 0.34 -t 0.03, 0.03 2.06 k 0.15, 0.04 -0.15 -t 0.04, 0.06 -0.30 -t 0.05, 0.08 UM-04
-0.02 ? 0.03, 0.04 -0.01 -t 0.03, 0.05 0.10 -t 0.01, 0.02 -0.01 2 0.02, 0.03 -0.06 & 0.03, 0.04 Radionuclide Concentrations, TPUs, and MDCS" (pCi/g)
Mn-54 CO-60 Ag-108m Ag-llOm Ba-133
-0.03 5 0.03b, 0.05 ORISE Sample ID 2026S0001 2026S0002 2026S0003 2026S0004 N R C Region I11 Sample ID Radionuclide Concentrations, TPUs, and MDCs" (pCi/g) cs-134 cs-137 Eu-152 Eu-154 UM-0 1 0.04 ? 0.03, 0.06 0.02 k 0.01, 0.03 -0.02 k 0.04, 0.07 -0.01 +_ 0.03, 0.05 UM-02 O.OOd ? 0.05, 0.07 0.04 ? 0.02, 0.05 0.04 k 0.07, 0.12 0.00 ? 0.05, 0.08 UM-03 0.01 +_ 0.03, 0.06 0.16 k 0.02, 0.03 0.02 k 0.05, 0.09 0.03 k 0.03, 0.06 UM-04 0.01 ? 0.02, 0.04 0.02 k 0.01, 0.03 -0.01 k 0.03, 0.05 0.00 -t 0.02, 0.04 bl.liiccrtaintics represent the 95% confidence level, based on total propagated uncertainties.
'Statistically negative concentrations arc due to the force fit routine in (hbcrra's, \\ p a (;anima Software.
"Zero values arc due to rounding or sample and background counts being equal.
Iwrd Kcactor - University of Michigan 2026-1 k01-0
TABLE 3 ORISE Sample ID CONCENTRATIONS OF GROSS ALPHA AND GROSS BETA I N SOIL SAMPLES BY GAS FLOW PROPORTIONAL, COUNTING AP1, REVISION 16; CP3, REVISION 2 FORD REACTOR, UNIVERSITY OF MICHIGAN ANN ARBOR, MICHIGAN
~~~~~
~
RadionuclideConcentrations, TPUs, and MDCS" (pCi/g)
Gross Abha Gross Beta NRC Region I11 Sample ID 2026S0001 2026S0002 2026S0003 2026S0004 UM-01 2.2 F 2.7b, 4.6 17.9 F 4.6, 6.4 UM-02 3.6 f 2.7, 4.2 18.5 f 4.4, 5.9 UM-03 1.5 k 2.5, 4.4 23.6 k 4.7, 6.0 UM-04 1.4 k 2.4. 4.2 25.7 5 4.9. 6.0 "I'hc MLICs arc after thc c o m a.
"Uncertaintics represent the 95" (1 confidence level, based on total propagated uncertaintica Ford Reactor - University of Michigan L026-LK-O I -\\I
TABLE 4 ORISE Sample ID 2026S0001 2026S0002 2026S0003 2026S0004 CONCENTRATIONS OF LOW ENERGY BETA RADIONUCLIDES IN SOIL SAMPLES BY LIQUID SCINTILLATION ANALYSIS AP6, REVISION 18; AP16, REVISION 1"; CP4, REVISION 3 FORD REACTOR, UNIVERSITY OF MICHIGAN ANN ARBOR, MICHIGAN NRC Region I11 Radionuclide Concentrations, TPUs, and MDCsb (pCi/g)
Sample ID C-14 Fe-55 H-3 UM-01 2.2 k 1.3', 2.2 3.1 ? 2.2, 3.7
-0.7 k 2.1, 3.6 UM-02 13.7 2 1.6, 1.8 3.4 k 2.3, 3.7
-1.2
_+
1.7, 3.0 UM-03 0.3 2
1.4, 2.4 3.1 ? 2.3, 3.7
-0.7
_+
2.3, 4.0 UM-04 1.6
?
1.3, 2.2 2.0 ? 2.1, 3.5
-2.0 2 2.1, 3.6 Ford Reactor - Unlversq of hlichlgan 2026-LR-01-0