Proposed Partial Assignment and Transfer of GSC Farm, LLC Colorado River Water Entitlement to the Town of Queen Creek, Arizona

Proposed partial assignment and transfer, and wheeling of GSC Farm, LLC’s (GSC) Colorado River water entitlement located in La Paz County, Arizona to the Town of Queen Creek (Queen Creek), located in Maricopa and Pinal counties, Arizona.

Proposed Action

View Lake Mead from Hoover Dam
View of Lake Mead from Hoover Dam

Greenstone Acquisitions, which holds a Colorado River diversion water entitlement of 2,913.30 acre-feet per year (AFY) for irrigation use in the name of GSC, proposed to permanently assign and transfer to Queen Creek, GSC’s estimated consumptive use of its Colorado River water entitlement of 2,083.01 AFY. Queen Creek has a Central Arizona Project (CAP) municipal and industrial water subcontract for 495 AFY with the United States and the Central Arizona Water Conservation District (CAWCD) and would need a CAP wheeling agreement to convey the transferred non-project water to its service area. The proposed water transfer would entail a change in the place of use, type of use, and change in the present point of diversion from the Cibola Valley Irrigation and Drainage District where the GSC lands are located, to a diversion at the Mark Wilmer Pumping Plant for conveyance through the CAP to Queen Creek.

Review Process for the Proposed Action

  • Publish Notice of proposed water contracts in the Federal Register
  • Initiate environmental compliance
  • Draft and review partial assignment, water delivery contracts and wheeling agreement
  • Draft environmental compliance documents and contracts for public review and comment
  • Complete environmental compliance
  • Execute partial assignment and transfer mainstream water delivery contracts
  • Execute CAP Wheeling Agreement

Contact Us

For additional questions or information, about the Proposed Partial Assignment and Transfer of GSC Farm, LLC Colorado River Water Entitlement to the Town of Queen Creek, Arizona, please email

If you would like to be added to the Email List to receive notifications and updates on the proposed actions, please email with subject line "Add me to Email List".

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Arizona Department of Water Resources (ADWR) Recommendation to Secretary of the Interior

By letter dated September 4, 2020, the Arizona Department of Water Resources (ADWR) recommended the Secretary of the Interior assign and transfer 1,078.01 acre-feet per year (AFY) of fourth priority Colorado River water entitlement from GSC to Queen Creek. GSC, Queen Creek and AWDR refined the assumptions, and in a letter dated Jan. 20, 2021 to Reclamation, concluded that the recommended assignment and transfer amount is 2033.01 AFY.

For more information on ADWR recommendations and impact statements visit ADWR Public Notice site

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Draft Project Documents

Documents related to the development of the proposed actions are available below.


Public Information

Federal Register Notices - 86 FR 27105 (May 19, 2021) - Quarterly Status Report of Water Service, Repayment, and Other Water Related Contract Actions

Public Meeting Materials - COMING SOON
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Last Updated: 6/21/21