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.

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 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.

Because the West Branch area has been left alone, it has a chance to recover and become a part of the larger Paseo de las Iglesias project, and a cornerstone of a more extensive effort at ecological restoration involving the mesic coorridors of Pima County, the Santa Cruz, Rillito, and Pantano.

A diverse community of abundant, native amphibians is persisting along waterways of urban and urbanizing Tucson. Community and government leaders in Tucson support the concept of urban amphibian conservation in principle. Meanwhile, concurrent, commingled plans for infrastructure improvements and ecological restoration along major urban riparian corridors are being developed under leadership from Pima County, City of Tucson, and U.S. Army Corps of Engineers.

Paradoxically, as this work gets underway, it could impact local amphibian populations – temporarily via direct earth-moving impacts, and permanently via elimination of seasonal waters in which amphibians breed. Pima County wishes to minimize these negative impacts, and to learn how to protect, manage and improve habitat conditions for native amphibians. This report describes means by which—despite complex public health issues—such conservation may be possible with proper planning.