ML20002D914
| ML20002D914 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 09/08/1971 |
| From: | Morris P US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Campbell J CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8101230396 | |
| Download: ML20002D914 (1) | |
Text
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UNITCD STATES 4
ATOMIC ENERGY COMMISSION
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SEP R - 1971
%e Docket No. 50-155 m.
Consumers Power Company ATTN: James 11. Campbell President 212 West Michigan Avenue Jackson, Michigan 49201 Gentlemen:
It has been of interest in the nucicar industry that in some reactors fueled with UO ' Pouer changes may be followed by an increase in the 2
iodine content in the primary coolant. Data taken at the Tsuruga power reactor from April to sy'1970 indicate that following shutdown of.the d
. reactor, the-1-131 concentration in the primary coolant increase In order to understand temporarily by a' factor of one hundred or more.
this phenomenon better, we request that you obt' in measurements at the a
Big Rock Point facility of primary coolant samples, taken at a frequency consistent with changing operating parameters, e.g.,. variation in power level and primary coolant cicanup. Samples taken from just before shutdown until the iodine content in the primary system icvele off would also be important.
We plan to discuss this potential problem at a meeting in our Bethesda of fice on September 23, 1971. We request that you send a representative and provide any pertinent data you might have.
Sincerely,
-eC5~-
. Peter A. Mor is, Director--
Division of Reactor Licensing George F. Trowbridge, Esquire cc:
Shaw, Pittman, Potts, Trowbridge
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and Madden 910 - 17th Street, N. W.
Washington,'D. C.
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RJSchemel DRL Brsuch Chiefs RDiggs Consumers Power Company ATTN: James H. Campbell President 212 West Michigan Avenue Jackson, Michigan 49201 Gentlemen:
It has been of interest in the nucle:ar industry that in some reactors fueled with UO. Power changes may ae followed by an increase in the 2
iodine content in the primary coolant. Data taken at the teuruga power reactor from April to May 1970 indicate that following shutdown of the reactor, the I-131 concentration in the primary coolant increased temporarily by a factor of one hundred or more. In ' order to understand this phenomenon better, we request that you obtain measurements at the Big Rock Point. facility of primary coolant samples, taken at a frequency consistent with changing operating parameters, e.g., variation f.n power Icvel and primary coolant cleanup. Samples taken from just before shutdown until the iodine content in the primary system levels off would also be important.
Wa plan to discuss this potential problem at a meeting in our Bethesda office on September 23, 1971. We request that you send a representative and provide any pertinent data you might have.
Sincerely, original signed by F. Schroeder Peter A. Morris, Director Division of Reactor Licensing
.e cc: Coorge Y. Trowbridge, Esquire Shaw, Pittman, Potts, Trowbridge j
and Madden 910 - 17th Street, N. W.
Weshington, D. C.
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