This agreement provides funding to the city of chandler, arizona, to implement its tumbleweed aquifer storage and recovery well equipping project, as directed in a technical correction approved…

Environmental Protection Agency Region 9 awarded a $3 million Cooperative Agreement to the City of Chandler, Arizona on August 1, 2026 to equip two new aquifer storage and recovery wells and install associated conveyance piping and reclaimed water transmission line infrastructure at the Tumbleweed Underground Storage Facility. The project will increase the recovery capacity of the existing facility and provide additional recovered water during peak reclaimed water demand periods, offsetting potable water usage and preserving groundwater credits for future use.

Work includes installation of ASR wells 11 and 12 in an existing drilled shaft to a maximum depth of 430 feet below ground level, with design phases at 60 percent and 90 percent completion, EPA approval submission, construction execution, and final closeout. Deliverables include the final design package, final bid documents, quarterly progress reports, and construction closeout documents. The project is funded under CFDA 66.202, Congressionally Mandated Projects, as directed by a technical correction approved subsequent to the 2024 Consolidated Appropriations Act. The period of performance runs through July 31, 2031, with performance occurring in Chandler, Arizona. The City of Chandler Housing and Redevelopment Division is the sole recipient; no sub-recipients are included.

This agreement provides funding to the city of chandler, arizona, to implement its tumbleweed aquifer storage and recovery well equipping project, as directed in a technical correction approved subsequent to the appropriation in the 2024 consolidated appropriations act. This assistance agreement provides full federal funding in the amount of $3,000,000. See terms and conditions.activities:the activities to be performed include the installation of two new ASR wells, ASR 11 and ASR 12, in an existing drilled shaft to a maximum depth of 430 feet below ground level; associated conveyance piping; and reclaimed water transmission line infrastructure to increase the recovery capacity of the existing tumbleweed underground storage facility, USF, as well as to provide the city of chandler with additional recovered water capacity during periods of peak reclaimed water demand. Workplan activities consist of the ASR well equipping design 60% design submittal, submission to EPA for approval, ASR well-equipping design 90% design submittal, construction executed contract, notice to proceed, and final completion.subrecipient:no subawards are included in this assistance agreement.outcomes:the anticipated deliverables include the final design package, final bid documents, quarterly progress reports, and construction closeout documents. The expected outcomes include providing additional water for uses to offset the usage of potable water and preserving long term groundwater credits for future use. The intended beneficiaries include the community of the city of chandler.