ML20030A527
| ML20030A527 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 03/25/1975 |
| From: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8101090926 | |
| Download: ML20030A527 (3) | |
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si ore.ces: :M2 West wchigan Avenue. Jackson McNgan 49201. Area Code S17 788-0550
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[Re:
Mr. Dennis L. Ziemann, Chief'.
4 Docket 50-155 License DPR 6 Operating Reactor Branch No 2d c-
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Big Rock Point Division of Reactor Licensing O g ',
US Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Ziemann:
By letter dated March 7,1975, you requested water chemistry data showing the results of all analyses performed over the last year of operation. You further stated that the data should include chlorides pH conductivity and oxygen. The' attached graphs are provided to fulfill this request, i
Results are not included for primary coolant oxygen concen-trations because the primary coolant system is not sampled routinely for dissolved oxygen. Tests that have been performed in the past have yielded consistent results of 200 to 250 ppb which agree very well with General Electric's data.
The following information is to be used with the attached graphs. This information provides a chronology of plant operations which will allow you to correlate the water chemistry data with periods of operation and shutdown.
Start-Up January 10, 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> to January 11, 197h, 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />.
Ambient to 212 F.
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- Shutdown
/x March 23, 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> to March 24, 197h, 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />.'/
212 F to ambient temperatures.
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May 3, 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> to May 4, 197h, 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />.
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Ambient to 212 F.
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Mr. Dennis L. Zi mann, Chief 2
4 March 25, 1975
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Shutdown l
June 3, 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br /> to June h, 1974, 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br />.
212 F to ambient temperatures, i
Start-Up July 21, 1000 1.urs to July 22, 197k, 1h00 hours.
Ambient to 212 F.
Shutdown January 17, 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> to January 17, 1975, 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br />.
212 F to ambient.
We are also attaching, for ease in understanding the data, a histogram of thermal power for the year 1974 It should be emphasized that reactor coolant is analyzed be-fore and not duripg start-up and is not analyzed during the process of shutdown. The coolant is analyzed daily while at, or greater than, 200 F and is analyzed two to three times weekly when the coolant is at ambient temperature.
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No consumable materials and chemicals have been added to the reactor coolant during this time period.
Also, attached as requested is a copy of the ultrasonic test procedure utilized at the Big Rock Point Plant. We believe that this procedure complies with the rules of ASME Code Section III and Section XI.
The attached procedure is used by employees of Consumers Power Company.
Their qualification records are also attached.
In addition, in the past we have used qualified personnel from Southwest Research Institute to perform ultrasonic test inspections.
Yours very truly, eW RBS/smm Ralph B. Sewell Nuclear Licensing Administrator CC: JGKeppler, USNRC
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u NRC C RIBUTION FOR PART 50 DOCKET 3TERIAL (TEMPORARY FORM)
CONTROL NO:J 3/d FILE:
FROM:
Consumers Power Company DATE OF DOC DATE REC'D LTR TWX RPT OTHER Jackson, Mi 49201 3-28-75 3-28-75 XX R B Sewell TO:
ORIG CC OTHER SENT AEC PDR XX Mr ziemann one signed SENT LOCAL PDR XX CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
XXXXXX 1
50-155 DESCRIPTION:
ENCLOSURES:
Ltr re our 3-7-75 Itr...trans the following:
fater Chemistry Data....(40 cys enc 1 rec'd)
PLANT NAME:
Big Rock loint tz ym. ~
FOR ACTION /INFORMATION
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