ML061320224

E-mail from W. Axelson of Entergy to J. White of USNRC, Regarding Telephone Conversation.Doc

ML061320224
Person / Time
Site:	Indian Point
Issue date:	03/02/2006
From:	Axelson W Entergy Nuclear Operations
To:	Jason White NRC/FSME
References
FOIA/PA-2006-0140
Download: ML061320224 (3)

Text

John White - Telephone Conversation.doc Page 1 From: "Axelson, William L" <WAxelso entergy.com>

To: <JRW1 @nrc.gov>

Date: 3/2/06 4:56PM

Subject:

Telephone Conversation.doc

<<Telephone Conversation.doc>>

Fyi--MW-i 11 sample may not have been IAW protocol??

CC: "Mayer, Don" <DMayerl @entergy.com>

N\Nq3

IJohn White - TEXT.htm Paqe 1 1

<<Telephone Conversation.doc>>

Fyi--MW-1i1 sample may not have been IAW protocol??

Pacie 11 John F[John White F

Telep~hone Conversation.doc White - TeleDhone L_-

Conversation.doc Page 1 Telephone Conversation 3/2/06 Dr. Michael Kitto (518-486-1476)

NY State Department of Health Jim Furfaro

Subject:

Sr-90 Result from MW- 111 The following is a summary of my conversation with Dr. Kittle of the DOH.

- The NYSDOH uses an analytical method similar to the EPA method for Sr-90 analyses in drinking water (EPA-600/4-80-032 method 905). It also appears very similar to the U.S. DOE EML HASL 300 method (SR-03-RC). Based on our conversation it appears very sound and well documented. It includes various techniques for removing interfering ions (e.g., separations). Dr. Kittle will send me a copy of their procedure. The Y-90 is counted on a low level background gas proportional counter.

-The Sr-90 result was reported as 3+/-2pCill The error, 2 pCi/l, is a 2 sigma total uncertainty. It includes the counting error and error associated with the analytical process (preparation and counting).

- The DOH's detection limit for a 1 liter water sample for Sr-90 is about 0.7 pCi/l.

However, the sample analyzed was less than 1 liter. The detection limit for the sample was probably close to about 2 pCi/l.

-To narrow this down further, I asked Dr. Kitto what the background on his low level gas proportional counter is. He said about l cpm. He checked the Sr-90 results for me. The sample was counted three separate times (approximately a day apart). The count time was 50 minutes for each count. The gross count rate for the Sr-90 sample was about 1.2 -

1.4 cpm. It was very low; however, Sr-90 was present.

In summary, it appears that Sr-90 was present in this sample but at a very low level. The value is slightly above the detection limit.