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.

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.

Authorizing Name Change Dec. 17, 1991 recognizing merger to become Ironhouse Sanitary District (PDF)Authorizing Statute- Declaring the Establishment of the Ironhouse Sanitary District (PDF)