ML102571776
| ML102571776 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 09/10/2010 |
| From: | - No Known Affiliation |
| To: | Division of Operating Reactor Licensing |
| References | |
| Download: ML102571776 (4) | |
Text
1 WBN2Public Resource From:
Crouch, William D [wdcrouch@tva.gov]
Sent:
Friday, September 10, 2010 1:10 PM To:
Poole, Justin; Milano, Patrick; Wiebe, Joel Cc:
Grim, Kenneth R; Elton, Thomas L
Subject:
FW: Excerpt from 08/27 NRC Letter Attachments:
image001.gif Justin/Joel,
WeneedalittlehelpunderstandingthebelowRAIfromthe8/27/10letter.Wearenotsurehowtoanswerthe questionforcontaminationcontrolareas.Alloftheotherareasareclear.
ThetermcontaminationcontrolareascomesstraightoutofRegGuide1.70Section12.3.1.Ifitistheoverall radiologicalcontrolareas(RCA),itseemslikeatrivialquestion/answersincetheRCAisbigenoughtogoaroundboth units.Commonsystems/featureswithintheRCAarealreadyinuseandhavebeendemonstratedbymanyyearsof operationtobeadequatelysizedformaintenanceaccess,personnelaccess,etc.Operatingtwounits(asopposedto oneunit)doesnotchangethedesignofthecommonfeaturesandthusthereshouldbenoimpactonthesize/design.
Wemayhavetoperformanactioninacommonareamorefrequentlywithtwounitsoperating,butnoadditionalspace wouldberequired.Unitspecificsystems/featuresinUnit2arethesamesize/designasinUnit1andhavealsobeen demonstratedtobeadequatelysized/designedbyyearsofoperation.Additionally,thetwounitoperationofthe Sequoyahfacility(whichisessentiallyanidenticaldesign)hasdemonstratedtheacceptabilityoftheoveralldesign.
Ifwearemissingthepointofthisquestion,pleaseprovideadditionalinsight.
Thanks
William D. (Bill) Crouch (423)3652004WBN (256)7777676Cell
Excerpt from 08/27 NRC Letter RAI#7:
The response to RAI # 7 is unresponsive to the request. In lieu of layout drawings as requested (consistent with Section 12.3.1 of Regulatory Guide 1.70), identify which of the following radiation protection facilities are common to Watts Bar Unit 1 and indicate whether they are sized and situated properly to support two operating units. The facilities are:
2
-2
- 1. Controlled access areas,
- 2. personnel and equipment decontamination,
- 3. contamination control areas,
- 4. in plant traffic patterns to radiologically controlled areas,
- 5. health physics facilities (including dosimetry issue and maintenance, respiratory protection issue and maintenance, in-vivo and in-vitro bioassay, protective clothing and radiation survey instrument issue, Radiation Protection Manager and technical staff office/work space),
- 6. onsite laboratory for analysis of chemical and radiological samples, and
- 7. radiological counting room.
For each of these facilities not shared with Unit 1, demonstrate they are sized and situated properly to support Unit 2 operation.
Hearing Identifier:
Watts_Bar_2_Operating_LA_Public Email Number:
94 Mail Envelope Properties (B75BE6D61CDE4A468D264343045CAC4F084990F2)
Subject:
FW: Excerpt from 08/27 NRC Letter Sent Date:
9/10/2010 1:09:43 PM Received Date:
9/10/2010 1:10:14 PM From:
Crouch, William D Created By:
wdcrouch@tva.gov Recipients:
"Grim, Kenneth R" <krgrim@tva.gov>
Tracking Status: None "Elton, Thomas L" <tlelton@tva.gov>
Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>
Tracking Status: None "Milano, Patrick" <Patrick.Milano@nrc.gov>
Tracking Status: None "Wiebe, Joel" <Joel.Wiebe@nrc.gov>
Tracking Status: None Post Office:
TVANUCXVS2.main.tva.gov Files Size Date & Time MESSAGE 2643 9/10/2010 1:10:14 PM image001.gif 927 Options Priority:
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