ML061990607

Final Letter Report for Analytical Results for Fifty-five Water Samples, Batch Five, from the Vicinity of the Dresden Generating Station, Dresden, Illinois (Inspection Report No. 050-00237/2006-007)

ML061990607
Person / Time
Site:	Dresden
Issue date:	07/11/2006
From:	Condra D Oak Ridge Institute for Science & Education
To:	Snell W NRC/RGN-III
References
FOIA/PA-2010-0209, IR-06-007 IR-06-007
Download: ML061990607 (6)

See also: IR 05000237/2006007

Text

OAK RIDGE INSTITUTE

FOR SCIENCE AND EDUCATION

.< -- July 11,2006 Mr. Wfiam Snell U.S. Nuclear Regulatory

Commission

Region 111 2443 Warrenville

Road Lisle, IL 60532-4351

SUBJECT: FINAL LETTER REPORT FOR

ANALYTICAL RESULTS FOR

FIFTY-FIVE WATER SAMPLES, BATCH FIVE, FROM THE VICINITY OF THE DRESDEN GENERATING STATION, DRESDEN, ILLINOIS

[INSPECTION

REPORT NO. 050-00237/2006-007] (RFTANO.06-001) Dear Mr. Snell: The Oak Ridge Institute

for Science and Education (ORISE) received 55

water samples on June 20,2006 which were collected

in the vicinityof the

Dresden Generating Station

in Dresden, Ihois. The samples

were analyzed for tritium. The chaimof-custody identified 11 water samples

to he analyzed by

gamma spectroscopy (GS). The sample identifications and collection data

are presented

in Table 1. The GS data are presented

in Table 2. The tritium data are presented

in Table 3. The data for sample D-06-5-03

is qualified

due to the lack of sample volume needed

for the distiiation procedure.

The sample volume, as received, was approximatelythree

mL. The peninent procedure

references

are provided in the specific tables. ORISE's Quality Control (Qc) requirements

were met for these analyses.

The ($2 files are available

for your review upon request. My contact information

is listed below. You may also contact Wade Ivey at 865.576.9184

with any questions

or comments.

Dale Condra, Manager Laboratory

RDC:WPI:ess

C: B. Watson, NMSS/DWMEP/DD/SP

7E18 E. Abelquist, ORISE E. Knox-Davin, NRG'NMSS/TWFN8A23

G. Bonano, NRC Region 111 S. Kirk ORISE File 1694 ~~ yn - Distribution

approval and concurrence

I Initials Fcshnical

M&gcrnent

Tt,m Mernbcr Voice: 865.241.3242

Fax: 865.241.3248

E-d: CondraD@orau.gov

RECEIVED JUL 1 82006

TABLE 1 SAMPLE IDENTIFICATIONS

AND COLLECTION

DATA DRESDEN GENERATING

STATION DRESDEN, ILLINOIS

TABLE 1 (continued)

SAMPLE IDENTIFICATIONS

AND COLLECTION

DATA DRESDEN GENERATING STATION

DRESDEN, ILLINOIS

TABLE 2 CONCENTRATIONS

OF SELECTED GAMMA EMITTING RADIONUCLIDES

IN SELECTED WATER SAMPLES

BY GAMMA SPECTROSCOPY

CP1, REVISION 15 DRESDEN GENERATING STATION

DRESDEN, ILLINOIS '?he range of MDO for the selected radionuclides

Is 4.7 pWL to 12.0 pWL. %Jncertaintier

represent

rhe 95% confidence

level, bared on total propagated

unceminrier.

Dresden Generating

Station

TABLE 3 CONCENTRATIONS

OF TRITIUM IN WATER SAMPLES BY LIQUID SCINTILLATION

ANALYSIS AP2, REVISION 15; CP4, REVISION 3 DRESDEN GENERATING

STATION DRESDEN, ILLINOIS 2060 * 170

TABLE 3 (continued)

CONCENTRATIONS

OF TRITIUM IN WATER SAMPLES BY LIQUID SCINTILLATION

ANALYSIS AP2, REVISION 15; CP4, REVISION 3 DRESDEN GENERATING

STATION DRESDEN, ILLINOIS *hll)Cr arc in parcnthescs. "Uncertainties

rcprereot

the 95% coofidencc

IcvcI, based on total propagated

uncertainties. "I'hc ccsdcs for this samplc are qualificd

due to an insufficient

samplc volume needed fur thc distillation

pcocedurc.

d. der" values are due to rounding.

l~rcsdcn < ;cncrarinl:

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