–(BUSINESS WIRE)–The Metropolitan Water District of Southern California:     WHAT: The Metropolitan Water District of Southern California and Sacramento-San Joaquin Delta Conservancy are breaking ground and planting the first seeds for future native plants as part of a major project to restore approximately 2,800 acres of wetlands and upland habitat on Metropolitan’s Webb Tract, a deeply subsided island in the Delta.   WHEN: 2 p.m., Wednesday, Oct. 7   WHERE: Webb Tract in Contra Costa County