Northern v. ONEOK/Bushton Measurement Issue/Chromatograph

Cc: e..anderson@enron.com, robert.benningfield@enron.com, lynn.blair@enron.com,
john.buchanan@enron.com, kenneth.cessac@enron.com,
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Ken Cessac reported to me today concerning a problem with Northern's chromatograph at the Bushton Plant that occurred on 9/19 after a routine annual replacement of calibration gas by ETS, and that was fixed yesterday, although Ken needs to review the fix. In a nutshell, the problem appears likely to have caused the volumes to be off for the period of time at issue; it is yet to be determined whether the Btu's per MMBtu will be off. Angela Mendez apparently caught this when certain values started repeating themselves. I am told that a similar problem was experienced when the chromatograph was first installed years ago, but thought to have been fixed.

Once Ken has finished his review and I have spoken with Rick Kile, we can draft the appropriate letter.

I will continue to keep you advised.

Britt