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From: marketopshourahead@caiso.com To: mktstathourahead@caiso.com Subject: PDCI (TNOB) South to North Derate Cc: Bcc: Date: Wed, 1 Aug 2001 00:23:34 -0700 (PDT) After the Day ahead market ran, the PDCI (TNOB) branch group TTC in the (S-N) direction was changed from 1904 MW to 1873 MW for HE's 0100 through 1200 for operating day 8/1/01. The reason for the change is for work on the Valve Group 6 at Sylmar. The first applicable Hour Ahead market to run with these values is HE 0600. The ISO will update you of any changes in line rating status. Sent by Market Operations, inquiries please call the Hour Ahead Desk. The system conditions described in this communication are dynamic and subject to change. While the ISO has attempted to reflect the most current, accurate information available in preparing this notice, system conditions may change suddenly with little or no notice.