NEW YORK (Standard&Poor's CreditWire) July 9, 1999--Standard&Poor's today affirmed its ratings on Edison International and Southern California Edison Co. (SoCalEd) and removed them from CreditWatch with negative implications, where they were placed March 24, 1999. SoCalEd's outlook is now positive. The CreditWatch listings were the result of the announcement by Edison Mission Energy Co. (single-'A'-minus/Stable/'A-2') that it would spend about $5 billion to acquire Commonwealth Edison Co.'s entire fossil capacity. Edison Mission's ratings were removed from CreditWatch on June 16 based on, among other things, exceptional financial support from Edison International, which will likely provide between $1.5 billion and $2 billion in equity this year to support Edison Mission's relatively conservative capital structure, and strong, sustained,