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S. 3743

U.S. Senate•In Senate Committee

Summary

S. 3743, a bill to direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes, was introduced in the Senate on Jan 29, 2026 by Sen. Mike Lee (R) with 1 co-sponsor. It last saw action on Jun 10, 2026: Committee on Energy and Natural Resources. Ordered to be reported with an amendment in the nature of a substitute favorably.

Record

Text

S. 3743 has 1 co-sponsor.

sb3743/introduced-in-senate.txt
119 S3743 IS: To direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes.
 U.S. Senate
 2026-01-29
 text/xml
 EN
 Pursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.
 II  119th CONGRESS  2d Session  S. 3743  IN THE SENATE OF THE UNITED STATES   January 29, 2026   Mr. Lee  introduced the following bill; which was read twice and referred to the  Committee on Energy and Natural Resources    A BILL
To direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes.
1.
Glen Canyon Dam selective water withdrawal system feasibility study
(a)
In general
The Secretary of the Interior (acting through the Commissioner of Reclamation) (referred to in this section as the  Secretary ), in consultation with the Secretary of Energy and Colorado River Storage Project power contractors, shall carry out a feasibility study (including all hydrological modeling) on a selective water withdrawal system at Glen Canyon Dam to optimize hydropower generation when releasing cold water from Glen Canyon Dam, while also preventing entrainment of invasive species, pursuant to the 2016 Long-Term Experimental and Management Plan Record of Decision and the 2024 Long-Term Experimental and Management Plan Supplemental Environmental Impact Statement and Record of Decision.
(b)
Feasibility determination
If the Secretary determines that a selective water withdrawal system alternative studied under subsection (a) is feasible under the reclamation laws, the Secretary may, if the Colorado River Storage Project power contractors concur with the alternative chosen, begin compliance with, and construction of, the chosen alternative.
(c)
Feasibility study deadline
The Secretary shall complete the feasibility study required under subsection (a) not later than 18 months after the date of enactment of this Act.
(d)
Funding
(1)
In general
The costs of the feasibility study under subsection (a) shall be paid for by the Secretary using appropriated funds.
(2)
Treatment of funds
Any Federal funds made available to carry out this section shall be nonreimbursable and nonreturnable to the United States.
(3)
Identification of funds
Not later than 90 days after the date of enactment of this Act, the Secretary, in consultation with the Secretary of Energy and Colorado River Storage Project power contractors, shall identify sources of available funds to carry out this section.
(e)
Effect
Nothing in this section affects the post-2026 Colorado River reservoir operations guidelines and strategies for Lake Powell and Lake Mead in effect before, on, or after the date of enactment of this Act.

Tracker

The tracker indicates the progress of this legislation as it moves through the legislative process.

  1. Introduced2026-01-29
  2. Passed Senate
  3. Passed House
  4. Conference
  5. To President
  6. Became Law

A bill to direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes.

Sponsors

Sen. Mike Lee (R) sponsors S. 3743, and 1 member has co-sponsored it.

Committees

S. 3743 went before 2 committees: Energy and Natural Resources and Water and Power Subcommittee.

Energy and Natural Resources
Energy and Natural Resources
Markup By · Jun 10, 2026 · 314 Bills
Water and Power Subcommittee
Water and Power Subcommittee
Hearings By (subcommittee) · Mar 17, 2026

Actions

S. 3743 has taken 4 actions since Jan 29, 2026, the latest on Jun 10, 2026.

ChamberAction
Jun 10, 2026
Senate
Committee on Energy and Natural Resources. Ordered to be reported with an amendment in the nature of a substitute favorably.Energy and Natural Resources Committee
Mar 17, 2026
Senate
Committee on Energy and Natural Resources Subcommittee on Water and Power. Hearings held.Water and Power Subcommittee
Jan 29, 2026
Senate
Read twice and referred to the Committee on Energy and Natural Resources.Energy and Natural Resources Committee
Jan 29, 2026
—
Introduced in Senate

Votes

S. 3743 has not gone to a roll call.

1 bill is related to S. 3743, as Identical bill.

Titles

S. 3743 goes by 2 titles.

  • A bill to direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes. — Official Title as Introduced
  • A bill to direct the Secretary of the Interior to carry out a feasibility study on a selective water withdrawal system at Glen Canyon Dam, and for other purposes. — Display Title

Lobbying

4 clients hired 3 firms and 103 registered lobbyists who named S. 3743 in 10 quarterly filings, 2025 to 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.

Filed under Copyright/Patent/Trademark, Education, Health Issues, Immigration, Insurance, Budget/Appropriations, Energy/Nuclear, Environment/Superfund.

Clients

Who paid to be heard, by how many filings named the bill.

ClientBusinessStateFirmsFilingsReported
MASSACHUSETTS MEDICAL SOCIETY—Massachusetts14—
CHAMBER OF COMMERCE OF THE U.S.A.—District of Columbia13—
UTAH ASSOCIATED MUNICIPAL POWER SYSTEMSPublic power firmUtah12$40K
COLORADO RIVER ENERGY DISTRIBUTORS ASSOCIATIONPublic power non-profitArizona11$20K

Firms

Registrants who filed on the bill, by filings.

RegistrantClientsFilingsReported
MASSACHUSETTS MEDICAL SOCIETY14—
CHAMBER OF COMMERCE OF THE U.S.A.13—
MEGUIRE WHITNEY23$60K

Lobbyists

Named on the filings that cite the bill. The 20 named most often, of 103.

LobbyistFirmsClientsFilings
CASEY ROJAS114
ABELARDO TORRES113
ANDREA PORWOLL113
ASHLEY GUM113
BRADLEY WATTS113
BRINCE MANNING113
BROOKE MILLER113
CASSIA CARVALHO113
CHAD WHITEMAN113
CHANTEL SHEAKS113
CHRISTOPHER CRENSHAW113
CHRISTOPHER EYLER113
CHRISTOPHER GUITH113
CHRISTOPHER ROBERTI113
CLARK JACKSON113
DAN BYERS113
ELIZABETH WHITNEY123
ERIN DELANEY113
ESPERANZA JELALIAN113
EVAN WILLIAMS113

Filings

The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.

ClientRegistrantPeriodReportedDocument
CHAMBER OF COMMERCE OF THE U.S.A.CHAMBER OF COMMERCE OF THE U.S.A.2025 second_quarter$19.3M2nd Quarter - Report
CHAMBER OF COMMERCE OF THE U.S.A.CHAMBER OF COMMERCE OF THE U.S.A.2025 first_quarter$19.3M1st Quarter - Report
CHAMBER OF COMMERCE OF THE U.S.A.CHAMBER OF COMMERCE OF THE U.S.A.2025 third_quarter$13.7M3rd Quarter - Report
MASSACHUSETTS MEDICAL SOCIETYMASSACHUSETTS MEDICAL SOCIETY2026 first_quarter$60K1st Quarter - Report
MASSACHUSETTS MEDICAL SOCIETYMASSACHUSETTS MEDICAL SOCIETY2026 second_quarter$50K2nd Quarter - Report
MASSACHUSETTS MEDICAL SOCIETYMASSACHUSETTS MEDICAL SOCIETY2025 third_quarter$50K3rd Quarter - Report
MASSACHUSETTS MEDICAL SOCIETYMASSACHUSETTS MEDICAL SOCIETY2025 fourth_quarter$40K4th Quarter - Report
COLORADO RIVER ENERGY DISTRIBUTORS ASSOCIATIONMEGUIRE WHITNEY2026 second_quarter$20K2nd Quarter - Report
UTAH ASSOCIATED MUNICIPAL POWER SYSTEMSMEGUIRE WHITNEY2026 second_quarter$20K2nd Quarter - Report
UTAH ASSOCIATED MUNICIPAL POWER SYSTEMSMEGUIRE WHITNEY2026 first_quarter$20K1st Quarter - Report

Classification

The Congressional Research Service files S. 3743 under Water Resources Development, one of its 31 policy areas, and gives it 8 legislative subjects.

CRS Subjects

CRS assigns every bill one policy area from its 31; S. 3743’s is Water Resources Development.

s3743/policy-areas.txt
Water Resources DevelopmentAgriculture and FoodAnimalsArmed Forces and National SecurityArts, Culture, ReligionCivil Rights and Liberties, Minority IssuesCommerceCongressCrime and Law EnforcementEconomics and Public FinanceEducationEmergency ManagementEnergyEnvironmental ProtectionFamiliesFinance and Financial SectorForeign Trade and International FinanceGovernment Operations and PoliticsHealthHousing and Community DevelopmentImmigrationInternational AffairsLabor and EmploymentLawNative AmericansPublic Lands and Natural ResourcesScience, Technology, CommunicationsSocial WelfareSports and RecreationTaxationTransportation and Public Works

Legislative Subjects

S. 3743 carries 8 of CRS’s legislative subjects, from Alternative and renewable resources to Water storage.

s3743/subjects.txt
Alternative and renewable resourcesArizonaDams and canalsElectric power generation and transmissionEnvironmental assessment, monitoring, researchGovernment studies and investigationsWater resources fundingWater storage

Source: congress.gov · legiscan.com