Title
Exchange Implementation Agreement Among the Central Arizona Water Conservation District and the Cities of Tucson and Phoenix (Ordinance S-48048)
Description
Request to authorize the City Manager, or his designee, to enter into an implementation agreement with the City of Tucson and Central Arizona Water Conservation District to implement the exchange of Colorado River water between the City of Phoenix and City of Tucson.
Report
Summary
In 2017, the City of Tucson (Tucson) and City of Phoenix (Phoenix) entered into an agreement to store an unused portion of Phoenix’s Central Arizona Project (CAP) water at the Southern Avra Valley Storage and Recharge Project in the Tucson Active Management Area. Phoenix accrues Long-Term Storage Credits (LTSCs) for this activity. When requested and mutually agreed upon, an exchange of water is completed such that Tucson uses its recovery wells to recover Phoenix’s LTSCs and uses this stored water within Tucson’s service area. In turn, Tucson orders a portion of its CAP allocation to be delivered to Phoenix’s water treatment plants.
The purpose of this Implementation Agreement is to detail where Tucson will deliver the CAP exchange water for Phoenix and the process of notifying Central Arizona Water Conservation District of the exchange. This agreement also confirms that Phoenix will use the exchange water received consistent with its CAP Subcontract and that Tucson will pay Central Arizona Water Conservation District for the exchange water delivered to Phoenix.
Contract Term
The Implementation Agreement will be effective upon execution by the parties, and will terminate on Dec. 31, 2027.
Financial Impact
This Agreement does not have a direct financial impact to the City.
Concurrence/Previous Council Action
The City Council approved:
- Intergovernmental Agreement (IGA) 146866 for the Storage, Recovery, and Exchange of Colorado River Water between the City of Phoenix and City of Tucson (Ordinance S-43264) on Feb. 15, 2017;
- Amendment 1 to IGA 146866 with the City of Tucson (Ordinance S-44180) on Jan. 10, 2018; and
- Amendment 2 to IGA 146866 with the City of Tucson (Ordinance S-46987) on Oct. 7, 2020.
Location
Out of City
Department
Responsible Department
This item is submitted by Deputy City Manager Karen Peters and the Water Services Department.