The Colusa Basin Drainage District (District) was formed in 1987 by the State Legislature after landowners recognized the need to address flooding and winter drainage in the basin. Subsequently in September 2000, the District received federal authorization in the passage of H. R. 1113, the Colusa Basin Watershed Integrated Resources Management Act, to assist in the development and implementation of projects to provide for the control of drainage, storm, flood, groundwater recharge and other waters as part of the water-related integrated resource management, environmental infrastructures, and resource protection and development projects in the Colusa Basin Watershed.