Jiohn -

No changes in boric acid storage tank concentration  for DCPP.

Mark Mayer

Diablo Canyon Reactor Engineering

805-545-4674

From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of John F Helfenberger
Sent: Monday, October 24, 2011 7:25 AM
To: pwrrm@retaqs.com
Cc: Kenneth R Pike
Subject: [Pwrrm] Boric Acid Weight Percent in Batching Tanks

Have any PWR plants recently increased their boric acid weight percent (for example, 8.0 to 10.0 weight percent) in their batching tanks?  I am interested in knowing if any plants have recently increased their boric acid concentrations and any operating experience you may have related to this.

Thanks,

John F. Helfenberger,

Lead Reactor Engineer,

Kewaunee Power Station

bus. 920.388.8294

Dominion Tie-line - 8.691.8294

pag. 920.704.4471

CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and/or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.