ML19329C744
| ML19329C744 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 09/03/1974 |
| From: | Harold Denton US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Moore V US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8002190861 | |
| Download: ML19329C744 (2) | |
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DISTRIBUTICN DocketFile/
AD/SS-L-Rdg L-Rdg 3M L-RAB Voss A. Moore, Assistant Director for Light Water Peactors Group 2, L
%XmD Two QUESTIONS AND FOSITIONS - DAVIS 3 ESSE 1 Plant names Davis Besse Licensing stage: FS,u Docket number: 50-346 ResW nsible branch: LWR 2-3 Project Manager I. Peltier Date roguest received by RAB Plue Book Requested completion data: 9/6/74 Description of r? _mase:
Trans=ittal of nound Two Questions and Staff Positions Peview status: Continuing Enclosed are round two questions and positions of 3A3 which were prepared for Davis Besse 1 after reviewing their responses to round one questions.
Upen receipt of acceptablo ansvers, PAB will be able to preparc the safety evaluation report.
This evaluation was performed by S. Slock, RAB.
Onfol SD*d if
, 2. R. Denm Ma.rold R. Denton,.\\ssistant Directer for Site ?afety 2nclosure:
Directorate of Licensing As stated ces w/o encl.
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74 Form AEC4 88 (Rev. 9 55) AZCM 0240
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q DAVIS BESSE STAFF POSITICMS_
(1)
In the response to the location of the upstream radiation monitor sampling heads in the ventilation system (as indicated in Question 12.2.2 of Revision 6, June 1974, Page 12.2.2-1), Figures 12.2.2-1 and 12.2.2-2 have been referenced by the applicant.
These figures l
are unacceptable to the staff since they do not clearly indicate where the sampling heads are located. The figures show a myriad of ducts, associated equipment and deceriptive details. The staff would prefer a simplified drawing similar to the ficw diagran of the auxiliary building ventilation system in Duke Project 81, Docket 50-;M PSAR, Figure 9.4.2-1, which clearly shows the upstream and dernstream locations of the ventila:icn radiation =0 niters.
(2)
The Davis Sasse program for grab sangling, as indicated Ff the 4
response to Qu23cica _
2.3, Revisicn E, Paga 12. 2. 2 -1, la na t realictic. To say that "... grab sampling f or area servaillanca will be r.cnthly" is not dafining a meaningful prograr. The techniqu2 of conitoring by grab sample: c:nciders th.: c rtain normal operations do not re:uire continu;us air tenitcring systems to conitor the atmosphera, but only require that internit nt samples be taken during the operation to assess evolve = ant of airborne radioactivity due to unanticipated release.
Thus, the j
grab sampling program should not be relatal to a fined routine k
since operations may require grab samp123 at different intarvals as c:cpared to others. The staff ther2 fora r: quires that_the prcgram be core flexible and even considar the use of perscnal air samplert during certain normal operations to provide core realistic close-i breathing camples.
(3)
Identify personnel who maintains and calibrates the portable radiat!.on survey meters. Specify how records will be kept for instrument calibration and maintenance.
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