ML18347A778

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Steam Generator Flushing Report No. 4, Covering Period March 6, 1975 Through March 27, 1975
ML18347A778
Person / Time
Site: Palisades 
(DPR-020)
Issue date: 04/24/1975
From: Sewell R
Consumers Power Co
To:
Office of Nuclear Reactor Regulation
References
Download: ML18347A778 (2)


Text

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  • consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201
  • Area Code 517 788-0550 Gentlemen:

April 24, 1975 Docket 50-255 License DPR-20 Palisades Plant Attached is Steam Generator Flushing Report No 4.

This report covers the period March 6, 1975 through March 27, 1975.

On March 28, 1975 we received our license to resume power operation. Therefore, the next monthly flushing report will be submitted in accordance with Appen-dix C to License DPR-20 (as amended March 28, 1975).

Yours very truly, WGF/ce Ralph Bo Sewell Nuclear Licensing Administrator CC:

JGKeppler, USNRC, I&E

i

.A. J.

PALISADES PLANT Steam Generator Flushing Report No 4 Flushing Report No 4 covers the period from March 6, 1975 through March 27, 1975.

At the beginning of this period the steam generators were in a wet lay-up condition.

These conditions existed until March 27, 1975.

On March 27, 1975 plant heat-up commenced.

On March 28, 1975 the steam generators were in a feed and flush operation at 320°F.

The pertinent steam generator chemistry on March 28 was:

'A' pH 10.15 Cond 38 µmho P04 5.5 ppm N2H4 40 Blowdown 5000 #/h

'B' 10.10 41.5 3.5 36 5000 #/h.

The high pH was due, we feel, to the thermal decomposition of N2H4 to NH3 during heat-up

  • The amount of phosphate removed from the steam generators did not sub-stantially change during this period *