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119-s-4846119th Congress

TAAP Act

Sponsored By: Senator Kelly, Mark [D-AZ]

In Committee

Summary

Reauthorizes and expands the U.S.-Mexico Transboundary Aquifer Assessment Program. This bill would renew the program's authorization, add Arizona to the list of priority border aquifers in most cases, and align the law's sunset with the Act's name.

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  • State water managers: Arizona is added alongside New Mexico and Texas as a priority area, with a specific exception for an aquifer that underlies both Arizona and Sonora and lies partly within the Yuma groundwater basin as noted in a June 21, 1984 Arizona Department of Water Resources order.
  • Program funding timeline: The bill would extend the window for authorized appropriations to fiscal years 2026 through 2036 instead of the prior 2007 through 2016 period.
  • Binational assessment and legal continuity: It keeps the existing statutory citations and updates the sunset reference so the timing of expiration matches the Transboundary Aquifer Assessment Program Act, supporting ongoing U.S.-Mexico aquifer assessments.

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Bill Overview

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

More aquifer studies for border states

If enacted, this bill would reauthorize the Transboundary Aquifer Assessment Program for fiscal years 2026 through 2036. It would add Arizona to the program's list of priority transboundary aquifers. It would exclude aquifers that underlie Arizona and Sonora and are partly in the Yuma groundwater basin, per the June 21, 1984 Arizona order. State and local water agencies, researchers, nearby homeowners, rural residents, and local businesses would likely get more federal studies and planning help. The bill lists no dollar amounts.

Sponsors & CoSponsors

Sponsor

Kelly, Mark [D-AZ]

AZ • D

Cosponsors

  • Sen. Cornyn, John [R-TX]

    TX • R

    Sponsored 6/22/2026

Roll Call Votes

No roll call votes available for this bill.

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