touch day notice touch day notification 200101286 iso anticipating high loads temperatures across iso control area california iso declaring touch day period 08 28 2001 06 00 08 28 2001 22 00 touch day restrictions detailed iso operating procedure e 509 effect market participants cautioned avoid actions may unnecessarily jeopardize generator availability message market operations california iso notice issued 08 27 2001 16 22 disclaimer system conditions described communication dynamic subject change iso attempted reflect current accurate information available preparing notice system conditions may change suddenly little notice