Its member companies are the owners and operators of dams along the Wisconsin River, such as paper manufacturers and utility companies with hydroelectric facilities on that river.
They include: [1] According to its charter, the company is to maintain nearly a uniform flow of water as practicable in the Wisconsin and Tomahawk rivers by storing in reservoirs surplus water for discharge when the water supply is low to improve the usefulness of the rivers for all public purposes and to reduce flood damage.
[5] The company was founded by an act of the Wisconsin State Legislature in 1907, as an outgrowth of several previous attempts to organize cooperative use of the water resources in the upper Wisconsin River basin.
The company owns and maintains 21 reservoirs on the Wisconsin River and its tributaries.
Of the five artificial reservoirs, one is on the Wisconsin River: Rainbow Flowage.