ML20135F141

Discusses Insp of License R-95 on 710622-23.No Items of Noncompliance Identified.Major Areas Inspected:Reactor Operations,Facility Operating Procedures & Administrative Controls & Reactor Utilization Committee

ML20135F141
Person / Time
Site:	Rhode Island Atomic Energy Commission
Issue date:	09/13/1971
From:	James O'Reilly US ATOMIC ENERGY COMMISSION (AEC)
To:	Quirk A RHODE ISLAND, STATE OF
Shared Package
ML20135F100	List: ML20135F098 ML20135F109 ML20135F126 ML20135F141
References
NUDOCS 8509170171
Download: ML20135F141 (2)

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(.' UNITED STc ATOMIC ENERGY ( ilSSION

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. nivision or cow . o.cs not e4s.3940 I <* O neoson i ,

970 BROAD STREET NEWARK. NEW JERSEY 07102 SEP 131971 Rhode Island Atomic Energy Conunission Docket No. 50-0193 ATTN: Dr. Arthur L. Quirk, Chairman Rhode Island. Nuclear Science Center Narragansett, Rhode Island 02882 Gentlemen:

This refers to the inspection conducted by Mr. J. J. Rizzo of our Bethesda, Maryland office on June 22 and 23,1971, of operations authorized under AEC Operating License No. R-95 and to the discussions of our findings held by Mr. Rizzo with Mr. A. F. DiMeglio of your staff at the conclusion of the inspection.

Areas examined during the, inspection included the following subjects

(- for the period since May 6, 1970: reactor operations, facility operating procedures and administrative controls, performance of the Reactor Utilization Conunittee, reactivity and core physics measurements, personnel exposures and radiation surveys, reactor maintenance, and liquid and gaseous releases. Within these areas,

, the inspection consisted of selected examinations of procedures and representative records, interviews with plant personnel and observa-tions by our inspector.

Within the scope of this inspection, no items of noncompliance with AEC requirements were identified.

As discussed with Mr. DiMeglio, we understand that you plan to test the efficiency of the absolute filters located in the scrubber system within the next three months and that arrangements will be made to have an independent audit performed of your operations on an annual basis. These items will be reviewed during our next inspection.

No reply to this' letter is necessary; however, should you have any questions concerning this inspection,.we will be pleased to discuss than with you. '

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8509170171 850906 PDR ADOCK 05000193 G PDR cW9 OgW ' I t

ames . O'Reilly cc: A. F. DiMeglio Dpector

. t Efficiency Test of Emergency Absolute Filjers

> l On 10 11-71 the emergency filters were tested with DOP smoke to determine the efficiency. The. smoke m aerato,r was;; positioned to discharge the smoke into the intake to the cleanup system on the main floor of the reactor room. The flow in the cleanup system was reduced by covering the intake to the system except for a small opening. The smoke was introduced through.this opening.

The particle detector was calibrated at the upstream side of the filters. The baseline reading was set at 70 5 ('100 %

base line could not be achieved because with the gain set to give 1005 the dark current from the phototube gave a larg.e signal which could not be zeroed with the straylight addustment). . With the instrument calibrated the air downstream of the filters was introduced into the detector and the 5 penetration was measured.

The reading on the meter was.less than 0.01 5. With 705 as the Q baseline the efficiency is - -

E=-1.- 0.0 70 -

E= 1 '0.4 Olli i

., E= .99966 or 99.986 5 l.

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