An authorizing statute is a statute by which the legislature gives an agency certain responsibilities and authority.
On July 2, 1945, Contra Costa County Board of Supervisors order declaring the establishment of the Oakley Sanitary District, which ultimately became the Ironhouse Sanitary District.
Dec. 17, 1991, Contra Costa County Board of Supervisors resolution recognizing merger of Oakley Sanitary District and Oakley-Bethel Island Wastewater Management Authority to become Ironhouse Sanitary District.