COLUMBIA, S.C. AP – The U.S. Supreme Court ruled Wednesday that a water supply company and a major utility must be allowed to participate in the high court water fight between North Carolina and South Carolina but excluded the city of Charlotte, N.C., from playing a role.

The Catawba River winds 225 miles through the Carolinas and provides drinking water to more than 1 million people and electricity to more than twice that many. In 2007, South Carolina Attorney General Henry McMaster filed a lawsuit to stop a plan to allow two North Carolina cities to pump up to 10 million gallons a day from the Catawba and Yadkin river basins, both of which cross the state line with South Carolina.