Addresses on Route 153 south of Route 162 (O'Rourke Road) intersection receive electrical power from the St. Louis/Bloomfield power substation. Addresses north of here receive from Tignish/Elmsdale.
This describes a geographical division in electrical service, where addresses south of Route 153 and near O'Rourke Road are served by the St. Louis/Bloomfield substation, while those north of that point rely on the Tignish/Elmsdale system.