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| RE: Sheild block wall questions Richard, Here are the questions we had with regards to the shield block issue: | | RE: Sheild block wall questions Richard, Here are the questions we had with regards to the shield block issue: |
| : 1. What evaluation has been done for TSC habitability? 2. Do EALs permit the use of the alternate radiation monitors / manual sampling if the vent stack monitor becomes inoperable? 3. It appears that the calculation to determine the dose as a result of removal of missile blocks has not been updated. | | : 1. What evaluation has been done for TSC habitability? 2. Do EALs permit the use of the alternate radiation monitors / manual sampling if the vent stack monitor becomes inoperable? 3. It appears that the calculation to determine the dose as a result of removal of missile blocks has not been updated. |
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| ==Subject:== | | ==Subject:== |
| Fw: Sheild block wall questions Hello Swetha, I was approached this morning by John Ellegood concerning some questions that you were waiting on responses to this morning concerning the sheild block wall dose calculations. Unfortunately, I have not been following this particular issue and both Steve and Craig are out of the office. Greg Hill is additionally out of the office and he is the one that answered the origional AR. I cannot find any documentation of questions beyond what were addressed in AR 2012-12972. Could you please forward to me your questions and I can get them dispositioned appropriately if they were not answered in the AR. Do you remember who you were working with to get these answered? | | Fw: Sheild block wall questions Hello Swetha, I was approached this morning by John Ellegood concerning some questions that you were waiting on responses to this morning concerning the sheild block wall dose calculations. Unfortunately, I have not been following this particular issue and both Steve and Craig are out of the office. Greg Hill is additionally out of the office and he is the one that answered the origional AR. I cannot find any documentation of questions beyond what were addressed in AR 2012-12972. Could you please forward to me your questions and I can get them dispositioned appropriately if they were not answered in the AR. Do you remember who you were working with to get these answered? |
| Thanks, Richard A. Wynegar Compliance Coordinator Regulatory Affairs Cook Nuclear Plant ph: 269-465-5901 x1727 Pager: 1727 rawynegar@aep.com | | Thanks, Richard A. Wynegar Compliance Coordinator Regulatory Affairs Cook Nuclear Plant ph: 269-465-5901 x1727 Pager: 1727 rawynegar@aep.com |
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Revision as of 19:30, 13 July 2018
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Text
From: Shah, Swetha Sent: Monday, November 18, 2013 12:11 PM To: 'rawynegar@aep.com' Cc: Ellegood, John
Subject:
RE: Sheild block wall questions Richard, Here are the questions we had with regards to the shield block issue:
- 1. What evaluation has been done for TSC habitability? 2. Do EALs permit the use of the alternate radiation monitors / manual sampling if the vent stack monitor becomes inoperable? 3. It appears that the calculation to determine the dose as a result of removal of missile blocks has not been updated.
Also, this calculation does not predict dose changes during design basis accidents. Please point to the exact changes in radiation that could result as a result of this modification. 4. The EC determines there is no effect on the MCR based on the MCR wall thickness.
Are there any specific calculations to prove that the MCR walls actually shield radiation during design bas is accident without the presence of missile blocks? 5. The EC determines that oper ator actions in the SI and RHR pump rooms will not be affe cted because the walls of these rooms consist of th ick concrete. Are there any specific calculations to prove that the SI and RHR pump rooms will shield the operators from radiation resulting from design basis accidents once the missile blocks are
removed? 6. What was the basis for concluding that a 50.59 evaluation was not required?
Thank you!
Swetha Shah
From: rawynegar@aep.com
[mailto:rawynegar@aep.com
] Sent: Friday, November 15, 2013 9:26 AM To: Shah, Swetha
Subject:
Fw: Sheild block wall questions Hello Swetha, I was approached this morning by John Ellegood concerning some questions that you were waiting on responses to this morning concerning the sheild block wall dose calculations. Unfortunately, I have not been following this particular issue and both Steve and Craig are out of the office. Greg Hill is additionally out of the office and he is the one that answered the origional AR. I cannot find any documentation of questions beyond what were addressed in AR 2012-12972. Could you please forward to me your questions and I can get them dispositioned appropriately if they were not answered in the AR. Do you remember who you were working with to get these answered?
Thanks, Richard A. Wynegar Compliance Coordinator Regulatory Affairs Cook Nuclear Plant ph: 269-465-5901 x1727 Pager: 1727 rawynegar@aep.com
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