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This letter refers to concerns that functional surveillanie l
alleging irprcper perfornance of f
for process radiation ronitors due to differences :n the 199;,
l 2A3 acceptance criteria contained in surveillance procedure SF 24:
l and the vender's technical manual.
the ?*ortheast Iltilities staff l
We have initiated action to haveAttached is the :ssue ascze intend ::
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ENCLOSURE Issue While performing a review of Surveillance Procedure SP 2404AG (Waste Gas Monitor Functional Test) data, it was noted that the acceptance criteria contained in SP 2404AG differs from the acceptance criteria specified in the vendor's technical manual.
Specifically, the vendor's technical manual states that correct operation of the upscale check system is determined by obtaining a counting level at least equal to that of the check source.
- However, section 6.2 of SP 2404AG specifies acceptance criteria as:
"The Acceptance Criteria is that the Upscale check is greater than Background, not that a specific increase occurs."
The surveillance is therfore incomplete and the operability of the monitor may be in doubt.
Request Please discuss the validity of the above assertions.
If any deficiencies regarding the technical accuracy of procedures or the operability of technical specification radiation monitors are identified, please provide us with the corrective actions you have taken to prevent recurrence.
l Please provide us with an assessment of the significance l
with regard to safety of any identified deficiencies.
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This letter refers to concerns that you provided to us on May 7, i
1991, alleging improper performance of fuctional surveillance for i
process radiation monitors due to differences in the acceptance criteria contained in' Surveillance Procedure SP 2402AG and the-vendor's technical manual.
i We have initiated action to have the Norgheast Utilities staff review the above concern.
Attached is the issue as we intend to l
characterize it to the licensee.
We will inform you of their review findings.
Should you haave any further questions, or if I can be of further assistance in these regards, pleas call me collect at (215) 337-9 5225.
Sincerely, t
r.:-w., -;...4 Edward Henzinger, Chief Reactor Projects Branch 4 Attachments:
As Stated r
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Allegation Files, RI-91-A-0093 T.
Shedlosky J. Stewart E.
Kelly hD4 RI:DRP i
Concurrences:
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Ir; formation in this record was deleted in actodan:e wW.i1. e f reedom of in'=3 tion l
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OCT 2 4 331 i
Dear L-1 Per your October 10. 1991 request, enclosed is alisting of concerns that you have provided to ite NRC which are cunently open according to our records. For your information we nave broken down each alleganon imo individual concems. and there ne 86 concems that remain open. The :] concerns uhich are preceded by an astensk are considered technically closed re appropr: ate paperwork m prc.:ess. Yeu wiil be receiving closcout letters for those concems.
commensura:e with their pr:onty and our other work actidties.
The enclosed tisung prosides Lte date of receipt of your concems, and a bnei summary. Your recorcs should enable cross reference between our case 61e numbers and related conespondence l
- hat you ha e receised. Regarding any ot-allegations you have made, according to our files.
hose are closeri h no f.reer accon planned by the NRC. I trust this meets your needs. I a re cc a...
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- Edward Wenzinger. Chie' Reactor Projects Branch 4 i
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