ML20128B292

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Forwards Inquiry Rept & Transmittal Memo Relating to Detection of Exposure Levels of High Readings on Environ Thermolumluminescent Dosimeters
ML20128B292
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 04/28/1972
From: James Keppler
US ATOMIC ENERGY COMMISSION (AEC)
To: Ziemann D
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20128B298 List:
References
NUDOCS 9212030621
Download: ML20128B292 (1)


Text

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  1. ' UNITED STATES e ,

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ATOMIC ENERGY COMMISSION I wAsmNGTON. D.C. 2M4 [ ,

April 28, 1972

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' g gj .T D. L. Ziemann,' Chief, Operating Reactors Branch #2, DRL-NORTHERN STATES POWER COMPANY (MONTICELLO) - HIGH READINGS ON ENVIRONMENTAL THERM 0 LUMINESCENT DOSIMETERS The enclosed Inquiry Report and transmittal memorandum from our ,

Region III (Chicago) Office, relating to the detection of exposure levels in excess of background on three of f-site environmental monitoring TLD's at Monticello, are forwarded for information. ,

Compliance inspectors were at the site on A .:1121 to review this matter and have concluded that the high ;L i,angs have not resulted from facility releases. This conc, on was reached af ter the inspectors had reviewed site meteorology and stack release rates (for the most part 12,000-15,000 uci/sec) . for the period in question. ,

Additionally, film badges ' f rom the same locations as the TLD's which were found to be reading high have been' processed by the licensee and indicate normal background levels ( ' 10 mr/ month). Direct radiation measurements were also made at the TLD stations by the inspectors on April 21, and normal background levels were found.

The AEC TLD's located around the f acility perimeter fence have been removed for processing at Idaho Operations Office and these- results should be available within 1 week. We plan no further action on this issue unless the information from the processing of the AEC TLD's indicates radiation levels in excess of background levels.

l

.S M pJ.G.Kepper, Chief, Reactor Testing and Operations' Branch' Division of Compliance l

Enclosure:

CO Inquiry Report No. 050-263/72-06 cc: E. G. Case,.DRS (3)

R. S. Boyd, DRL (2)

D. J. Skovholt, DRL (3)

H. R. Denton, DRL (2)-

L. Kornblith, CO, w/o enclosure R. H. Engelken, CO, w/o enclosure G. Fiore111, 00:111, w/o enclosure CO Files

! W Central Files Regional Directors ar

-9212030621 720428 PDR ADOCK 05000263 D pop _

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