ML110410355
| ML110410355 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 02/04/2011 |
| From: | - No Known Affiliation |
| To: | Division of License Renewal |
| References | |
| Download: ML110410355 (3) | |
Text
1 IPRenewal NPEmails From:
Gray, Dara F [DGray@entergy.com]
Sent:
Friday, February 04, 2011 2:41 PM To:
Stuyvenberg, Andrew Cc:
Dacimo, Fred R.
Subject:
Questions re FSEIS Attachments:
Questions Regarding FSEIS 2-4-11.doc Hi Drew Here is the corrected version of our comments.
Please let me know if you have any questions.
Thanks.
Hearing Identifier:
IndianPointUnits2and3NonPublic_EX Email Number:
2281 Mail Envelope Properties (DCB622189B67AD49AE39CD3ED1B4D99D0CFFE0C2)
Subject:
Questions re FSEIS Sent Date:
2/4/2011 2:41:18 PM Received Date:
2/4/2011 2:41:21 PM From:
Gray, Dara F Created By:
DGray@entergy.com Recipients:
"Dacimo, Fred R." <FDacimo@entergy.com>
Tracking Status: None "Stuyvenberg, Andrew" <Andrew.Stuyvenberg@nrc.gov>
Tracking Status: None Post Office:
IPCEXETSP001.etrsouth.corp.entergy.com Files Size Date & Time MESSAGE 111 2/4/2011 2:41:21 PM Questions Regarding FSEIS 2-4-11.doc 47680 Options Priority:
Standard Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
1 ENTERGYS QUESTIONS REGARDING NRCs FSEIS ON INDIAN POINTs LICENSE RENEWAL APPLICATION Summarized below are certain observations and questions regarding the analysis in the FSEIS, Appendices H and I, of potential impacts to due impingement and entrainment.
- 1. The numbers of organisms entrained, as listed in Table I-42, are too large by a factor of 1,000.
- 2. Given NRCs criteria for the three levels of potential impact (small, moderate, and large), we would like to better understand how the assessment method employed in the FSEIS was used to establish large potential impacts - that would be characterized by the destabilization of an important attribute of a fish population.
We are seeking clarification of the FSEIS assessment of destabilization.
- 3. We would like to better understand why the FSEIS employs a Strength of Connection (SOC) method in the assessment of impingement and entrainment impacts that employs assumptions about exponential differences over time -- the SOC method seems to project differences, based on perceived impacts of losses, that are difficult to reconcile with population dynamics and longstanding wildlife management decision-making As a result, with a sufficient number of years included in the model projection, the method would conclude a high strength of connection for a species, even if entrainment and impingement mortality rates approached zero, for any nuclear facility.
- 4. We are seeking clarification on why estimates of entrainment mortality rates used in the Strength of Connection analysis were based solely on the small fraction of fish present in a limited area of the Hudson River, rather than on population abundance, despite longstanding information regarding movement and location of relevant fish.