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Read. Follow. Verify.Idaho Overhauls Lateral Water User Association Laws and Imposes Triple Damages for Headgate Tampering
Last action · March 24, 2026: Signed by Governor on 03/24/26 Session Law Chapter 112 Effective: 07/01/2026
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What This Bill Does
Senate Bill 1307 repeals and replaces Idaho code governing water users' associations, establishes civil liability and triple damages for unauthorized tampering or water diversion, and sets an effective date of July 1, 2026.
Farmers and property owners sharing irrigation ditches face updated rules on association governance, assessment collection, and strict financial penalties for unauthorized water use or damaging delivery infrastructure.
Who It Affects
Groups the bill's text affects, as described in the record. Being affected is not a position for or against it.
Water users
Water users must adhere to updated association governance, pay assessments by statutory deadlines, maintain laterals, and face strict liability and water shutoffs for non-payment or tampering.
Lateral water users' associations
Associations gain structured authority to elect boards, appoint lateral managers, levy assessments, borrow money, and place liens on delinquent properties.
Water delivery organizations
Organizations are required to provide measuring devices and diversion structures at delivery points and gain authority to enforce maintenance notices and appoint managers under specific conditions.
Key Facts
- Unauthorized tampering with headgates, pumps, or diversion structures results in civil liability for three times the actual damages sustained.
- Water users who willfully or wantonly waste water, causing injury to another's real property, are liable in a civil action.
- Lateral water users' associations must hold annual meetings between January 1 and the last Monday in March.
- Each association member is entitled to cast one vote per inch of water they are entitled to receive.
Show all 10 facts
- Association assessments are due annually on May 1, with a 10% penalty and 10% annual interest applied if unpaid by June 15.
- Delinquent water users are not entitled to demand or receive water from a lateral.
- Unpaid assessments and related penalties constitute a first and prior lien on the water user's land, subject to certain exceptions.
- Water delivery organizations must provide necessary diversion structures and measuring devices at delivery points.
- Interfering with the delivery of water constitutes a misdemeanor and establishes civil liability for damages.
- The act takes effect on July 1, 2026.
Frequently Asked Questions
What happens if a water user fails to pay their lateral association assessments?
What are the penalties for tampering with an irrigation headgate or ditch?
Who manages the operation and maintenance of a shared lateral ditch?
What else do you want to know?
News Coverage
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Votes, people, money & the original sourceWhere This Stands
Current status: Signed into law.
Procedural history
16 actions- Mar 24, 2026EnrolledSigned by Governor on 03/24/26 Session Law Chapter 112 Effective: 07/01/2026
- Mar 24, 2026Reported delivered to Governor at 3:45 p.m. on 03/23/26
- Mar 23, 2026Reported signed by the Speaker & ordered delivered to Governor
- Mar 23, 2026Received from Senate; Signed by Speaker; Returned to Senate
- Mar 20, 2026Reported enrolled; signed by President; to House for signature of Speaker
- Mar 19, 2026CommitteeReturned From House Passed; referred to enrolling
Show 10 earlier actions
- Mar 19, 2026FloorRead Third Time in Full – PASSED - 60-10-0 AYES – Berch, Bingham, Boyle, Bruce, Burgoyne, Cannon, Cheatum, Church, Cornilles, Crane(12), Crane(13), Dygert, Egbert, Ehardt, Ehlers, Erickson, Fuhriman, Furniss, Galaviz, Gannon, Garner, Green, Hall(Stone), Handy, Hawkins, Haws, Healey, Hill, Holtzclaw, Hostetler, Leavitt, Manwaring, Mathias, McCann, Mendive, Mickelsen, Miller, Mitchell, Monks, Nelsen, Palmer, Petzke, Pickett, Pohanka, Raybould, Raymond, Redman, Rubel, Sauter, Shepherd, Shirts, Skaug, Tanner(13), Tanner(14), Vander Woude, Veile, Weber, Wheeler, Wisniewski, Mr. Speaker NAYS – Alfieri, Barbieri, Beiswenger, Cayler, Harris, Marmon, Price, Rasor, Scott, Thompson Absent – None Floor Sponsor - Mickelsen Title apvd - to Senate
- Mar 18, 2026Read second time; Filed for Third Reading
- Mar 17, 2026Reported out of Committee with Do Pass Recommendation, Filed for Second Reading
- Mar 4, 2026IntroducedRead First Time, Referred to Resources & Conservation
- Mar 4, 2026Received from the Senate, Filed for First Reading
- Mar 3, 2026FloorRead third time in full – PASSED - 34-0-1 AYES – Anthon, Bernt, Bjerke(Bjerke), Blaylock, Bruner(Adams), Burtenshaw, Carlson, Cook, Den Hartog, Foreman, Galloway, Grow, Guthrie, Harris, Hart, Keyser, Kohl, Lakey, Lenney, Lent, Nichols, Okuniewicz, Rabe, Ricks, Ruchti, Shippy, Taylor, Toews, VanOrden, Ward-Engelking, Wintrow, Woodward, Zito, Zuiderveld NAYS – None Absent and excused – Semmelroth Floor Sponsor - Burtenshaw Title apvd - to House
- Feb 27, 2026Read second time; filed for Third Reading
- Feb 26, 2026Reported out of Committee with Do Pass Recommendation; Filed for second reading
- Feb 17, 2026CommitteeReported Printed; referred to Resources & Environment
- Feb 16, 2026IntroducedIntroduced; read first time; referred to JR for Printing
Version history
Only one version on file - nothing to compare yet. As later stages (committee substitute, engrossed, enrolled) are captured, the redline appears here.
View official text →Lobbying Activity
No state lobbying filings in our records match this bill. Federal lobbying reports (LDA) cover Congress, so they are not listed on state bills.
Full breakdown
Who this bill affects and the strongest case for and against it, written only from the bill’s own text.
Discoveries
Patterns POLISCOPE noticed across the record. These are observations to investigate, not conclusions.
Comprehensive Restructuring of Lateral Association Statutes
The bill completely repeals existing chapters on lateral ditch water users' associations and enacts an updated, uniform statutory code governing organization, assessment collection, and infrastructure protection.
Connected Entities
Sources
legislature.idaho.gov
Analysis Score
0–100- Significance80How much this matters to a regular citizen
- Controversy20Intensity of disagreement among stakeholders
- Entertainment5Compellingness for a non-policy-wonk reader
- Buzz15Current news / social attention level
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