By establishing the District, the Arizona State Legislature created an entity charged with keeping county residents safe from flood hazards and established an independent funding source for essential projects. The District is a municipal corporation and political subdivision of the State of Arizona. The Maricopa County Board of Supervisors doubles as the District's Board of Directors and receives counsel from the Flood Control Advisory Board comprised of county citizens.

Approximately 11,000 miles of rivers, streams and washes run through Maricopa County. In order to enhance and maintain the benefits provided by these watercourses, the Flood Control District of Maricopa County engaged in an effort to refine its role in river planning and management. To develop an enhanced river planning and management strategy, District staff adopted a process called C3RPM. The core C3 process addresses complex issues with a blend of comprehensive information collection to solicit diverse opinions; a coordinated and deliberative assessment of that information; and a collaborative decision-making system free of bias to promote a consensus result.

The District's Coordinated, Comprehensive, Collaborative Flood Hazard Mitigation Partnering (C3FHMP) effort addressed Strategic Initiative No.3 of the Flood Control District of Maricopa County 2009 Comprehensive Plan: Increase Collaboration and Partnerships. The District initiated the process to determine how the funding and resources of other entities could be best applied to mitigate flood hazards in Maricopa County, or where mutual benefits would be realized.

An update to the Flagstaff Regional Plan 2030 (FRP30), to bring its Road Network Illustration (Map 25) into compliance with Arizona Revised Statute requirements and to resolve inconsistencies between Map 25 and parts of the Flagstaff City Code. This update does not alter the intent of FRP30; it is only concerned with correcting errors, removing legal vulnerability, and improving the readability of FRP30.

Water banking is one of Arizona's most important water management strategies, and its success depends on effective planning. This joint plan helps advance the objective, articulated in the intergovernmental agreement among CAP, ADWR and AWBA, to develop a coordinated and cooperative planning process that includes distribution and recovery of water stored by the AWBA.

The primary purpose of the Inventory is to identify storage capacity available to the Arizona Water Banking Authority to meet its water storage goals. Inclusion of a facility in the Inventory does not equate to a commitment by the AWBA to utilize any specific facility in the future. The AWBA will continue to determine annually which facilities will be used through the development of the Annual Plan of Operation. Conversely, not including a facility in the Inventory does not preclude the AWBA from utilizing that facility in a future Annual Plan. It does, however, preclude the facility from being utilized for interstate water storage, until such time as it is included in an updated Inventory.

The purpose of the Inventory is to determine whether storage facilities exist in this state to meet the water storage needs of the authority for the following ten years. The Authority approved the initial Inventory in 1997. Because additional storage facilities are continually being constructed, the Authority updates the Inventory at least once every five years. The Authority has been annually updating all new facilities that could be utilized by the Authority in its Annual Report. It is important to note that the primary purpose of the Inventory is to identify the capacity that is available for potential storage by the Authority to meet its objectives. The inclusion of a facility in the Inventory does not equate to a commitment by the Authority that the facility will be utilized for water banking purposes in the future. The Authority will continue to determine annually which facilities will be used through the development of an Annual Plan of Operation. Conversely, a facility that is not included in the Inventory may be utilized in a future Annual Plan of Operation.