ML063000388

E-mail from P. Donahue of Entergy to R. Nimitz of NRC, Regarding Monitoring Well Data Set Rev 1

ML063000388
Person / Time
Site:	Indian Point
Issue date:	07/28/2006
From:	Donahue P Entergy Nuclear Operations
To:	Nimitz R NRC Region 1
References
FOIA/PA-2006-0314
Download: ML063000388 (2)

Text

[John White - Monitoring Wel Data Set Rev 1 ag e.P j From: "Do. ahue, Patrick J" <PDonahu@entergy.com>

To: <rrnC@ nrc.gov>

Date: 07/28/2006 2:13:34 PM

Subject:

Monitoring Well Data Set Rev 1 Mr. Nimitz, I have enclosed the edited monitoring well data set that I originally sent on 7/26/06. As you recall that was sent out in error and was soon after retracted. This enclosed data set is similar but does not contain all the NYSDEC data points due to confidentiality constraints.

I have groomed the data set to ensure I have enclosed what data we have available, but in some cases I simply do not have the ORISE lab sample results to fill in gaps in the data. If additional ORISE lab data is made available to Entergy I will incorporate that data as well. Please excuse the multiple units in use in this spreadsheet but the data is presented in the units of the original analysis.

If you require additional data please contact me at your convenience.

<<Groundwater Monitoring Routine MDC.doc>>

Respectfully, Patrick Donahue Sr. HP/Chemistry Specialist Entergy Nuclear Northeast Indian Point Energy Center 450 Broadway, Suite 3 Buchanan, NY 10511 pdonahu @entergy.com (914) 736-8405 Voice (914) 734-6247 Fax This e-mail and any attachments thereto are intended only for the use by the addressee(s) named herein and contain proprietary and confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify me by telephone and permanently delete the original and any copy of any e-mail and any printout thereof.

CC: <jrwl@ nrc.gov>, <jjk @nrc.gov>, <jdn @nrc.gov>, <tbrice @gw.dec.state.ny.us>,

"Croulet, Donald K" <dcroule@entergy.com>

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ýý'49hný-hite - Groundwater Monitoril9g Routine MDC.doc- PaTi k Jon Wite-Grondwter oniorin Rotin MD~do IPEC Groundwater Monitoring Routine MDC's Sample Material Analyte Water Soil / Sediment Fish Sr-90 1 pCi/L na 5 pCi/kg H3 200 pCi/L na 200 Basis for MDC's Strontium 90:

The basis for the strontium mdc is the ability of the lab to detect at a given concentration, expected background levels from published literature and a review of the practices of other utilities. We do not have a specified 9°Sr mdc for soil/sediment although we have some samples analyzed <50 pCi/kg.

Tritium:

The basis for the tritium mdc is the ability of the lab to detect at a given concentration, the ODCM criteria and a review of the practices of other utilities.

We do not normally analyze soil/sediment for tritium.

Note that'Entergy will continue to review these mdc values for their usefulness in our continuing investigation.