IRWM: Propositions 50, 84 & 1

Integrated Regional Water Management Program

In 2002, Senate Bill 1672 created the Integrated Regional Water Management Act to encourage local agencies to work cooperatively to manage local and imported water supplies to improve the quality, quantity, and reliability. Integrated Regional Water Management (IRWM) is a collaborative effort to manage all aspects of water resources in a region. IRWM crosses jurisdictional, watershed, and political boundaries; involves multiple agencies, stakeholders, individuals, and groups; and attempts to address the issues and differing perspectives of all the entities involved through mutually beneficial solutions. See for more information.

Proposition 50

Proposition 50, the Water Security, Clean Drinking Water, Coastal and Beach Protection Act of 2002, was a Water Bond initiative approved by California voters in November 2002. The Integrated Regional Water Management Grant Program was created under Chapter 8 of Proposition 50 and included $380 million for the development of Integrated Regional Water Management Plans (IRWMPs) and for the funding of projects included within them. Additionally, legislation under this Chapter required that not less than 40% of IRWM grant program funding be awarded to Northern California communities. With the update of the California Water Plan in 2005, and the passage of Proposition 84 in 2006, the programmatic emphasis on integrated planning has been enhanced and expanded. Integrated Regional Water Management Planning represents a new paradigm for sustainable management of the state and the region’s resources. See for more information.

Proposition 84

Proposition 84 Safe Drinking Water, Water Quality and Supply, Flood Control, River and Coastal Protection Bond Act of 2006, was passed by the voters in the November 2006 general election. Proposition 84 provides $1 billion in grant funding for IRWM programs throughout the state - including $37 million for the North Coast - with an emphasis on local control of projects to improve water supply and water quality. Additionally, Proposition 84 allocates up to $45 million for coastal salmon and steelhead restoration programs and provides funding for parks, wildlife conservation and other purposes. The total funding for the bond measure is $5.4 billion. See: for more information.

Proposition 1

On November 4, 2014, California voters approved Proposition 1, the Water Quality, Supply, and Infrastructure Improvement Act of 2014. Proposition 1 authorized the appropriation of $510 million in Integrated Regional Water Management funding for Implementation and Planning efforts to each hydrologic region of the State and the Mountain County Overlay area, as identified in the California Water Plan (updated 2013), with some additional modifications, including three sub-regions for the South Coast Hydrologic Region. For the IRWM Grant Program, these areas are referred to as "funding areas" instead of hydrologic regions. Of this $510 million, a portion will be devoted to assisting disadvantaged communities. See: for more information.