Directs the Interior Department to study whether a water supply project for the Dakota Mainstem Regional Water System area in South Dakota, Iowa, Nebraska, and Minnesota is feasible, with federal study costs capped at 50 percent and federal spending limited to $10 million.

Official title: Dakota Mainstem Water Supply Project Feasibility Study Act

Next stop Senate floor: awaiting a vote

Timeline each lane is a chamber; dates pull from congress.gov actions

Senate

Introduced 29-JAN-2026

Referred 29-JAN-2026

Approved by committee 10-JUN-2026

Reported 17-SEP-2026

On the calendar 17-SEP-2026

Key points

Requires the Secretary of the Interior, acting through the Bureau of Reclamation, to carry out a feasibility study under reclamation feasibility standards in coordination with a nonprofit non-federal project entity
Limits federal funding for the study to $10,000,000 and caps the federal share of study costs at 50 percent
Requires a feasibility report with recommendations on technical and financial feasibility, authorization for construction, and a non-federal construction cost share of at least 25 percent, submitted to Senate and House committees and made public
Ends the study authority five years after enactment

AI-generated from the Reported to Senate text of 17-SEP-2026 · verify · report an error

Official CRS summary

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Committee referrals (2)

Policy area

Water Resources Development

Sponsor Mike Rounds (R-SD) Cosponsors · 1

■ 1 R

1 Republican