Dakota Mainstem Water Supply Project Feasibility Study Act

Sponsor: Mike Rounds (Republican-SD)January 29, 2026

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Introduced

In Committee

Passed One Chamber

Passed Both Chambers

Signed into Law

Read twice and referred to the Committee on Energy and Natural Resources.

Bill would allow a study for new water sources in four states.

The Department of the Interior would study new ways to supply water to homes and businesses in parts of South Dakota, Iowa, Nebraska, and Minnesota. Currently, no federal plan exists to look into this project. If passed, the bill would set aside $10 million to help pay for this study.

What Would Change

Currently, there is no federal authorization or funding specifically for a study to explore new water sources for the Dakota Mainstem Regional Water System service area. If this bill becomes law, the Department of the Interior would be allowed to conduct such a study. Up to $10 million would be set aside to cover up to 50 percent of the study's costs.

Key Provisions

Lets the Department of the Interior study a new water supply project for communities in South Dakota, Iowa, Nebraska, and Minnesota.
Requires the study to follow specific government standards for water projects.
Caps the federal government's share of the study costs at 50 percent.
Sets aside $10 million to help pay for the water supply study.
Ends the authority to conduct this study 10 years after the bill becomes law.

View on Congress.gov

S 3736 · 119th Congress · January 29, 2026 · AI Summary by gemini-2.5-flash · 10/10

Lobbying Activity

1 filings mentioned this bill

Top Lobbying Clients

STATE OF SOUTH DAKOTA (OFFICE OF THE GOVERNOR)

$30K

1 filing

Top Lobbying Firms

1.STOICK CONSULTING, LLC1 filing

Amounts reflect total quarterly lobbying spend reported to the Senate, not bill-specific spending. Source: Senate LDA filings.