Established in 1961 as a California Water District under the provisions of the California Water Code (see Authorizing Statue/Enabling Act), Irvine Ranch Water District is an independent special district serving central Orange County. IRWD provides high-quality drinking water, reliable sewage collection and treatment, ground-breaking recycled water programs, and environmentally sound urban runoff treatment to its customers. As an independent, not-for-profit public agency, IRWD is governed by a publicly elected five-member Board of Directors. Board members are elected from five divisions and serve four-year terms. The Board is responsible for the District's policies and decision-making. Day-to-day operations are supervised by the General Manager.

Irvine Ranch Water District is a California-based utility providing water and sewage services. It manages drinking water, wastewater treatment, and recycled water systems for residential and business customers. The district emphasizes sustainable water management and conservation programs.