SMMWSC owns and operates three water-pumping plants and approximately 115 miles of buried infrastructure.

The key pumping plant is located at Whitestone Point, near AuGres, Michigan. Other water booster stations are located in Pinconning and Bay City.

The corporation's water transmission infrastructure system consists of 48-, 60- and 72-inch pipes that have been installed in a parallel configuration for added reliability. Pipelines between the Bay City plant and the cities of Saginaw and Midland have also been expanded into parallel pipeline systems.