HB 2204 Arizona House · 57th Legislature - First Regular Session

assured water supply; commingling

HB 2204 requires developers to obtain either a "certificate of assured water supply" from the state director or a written water service commitment from a designated city, town, or private water company before selling subdivided land in Arizona's active management areas. It directs the state director to designate cities, towns, and water companies with assured water supplies, with cities/towns having contracts for Central Arizona Project water deemed to have assured supply until 1997 (after which renewals require director review). The bill also allows for reduced water demand requirements if gray water reuse systems meet state rules, and exempts certain mineral or industrial developments from the requirement. This primarily affects land developers and local water providers in water-scarce regions of Arizona.

Bill status passed 3 of 5 stages cleared

Introduction

Jan 2025

Committee Review

Mar 2025

House Passage

Mar 2025

Senate Passage

Governor

Introduced Jan 16, 2025 Last action Mar 25, 2025

Maddy AI version diff · 1 comparison

What changed between versions

Introduced Version → House Engrossed Version · 7 edits · Mar 10, 2025

MODERATE

This bill updates Arizona's groundwater protection laws by adding new requirements for developers seeking water certificates, clarifying rules for gray water reuse, and establishing protections against requiring developers to procure more water than necessary for their projects. The changes modernize the statute to address current development practices while maintaining water supply assurances.

Scope change

The bill expands the scope by adding new subsections (I through N) that create successor liability rules for municipal water providers, clarify exemptions for existing developments, and add protections against over-procurement of water sources by developers.

REQUIREMENT

Added new subsection I requiring municipal water providers and their successors to continue complying with groundwater management goals even after their assured water supply designation lapses.

Added new subsection N prohibiting directors from requiring developers to procure water sources exceeding their proportional share of needed water.

Added new subsection L requiring a study by December 31, 2023 on whether building permit applicants for six or more residences should obtain water certificates.

DEFINITION

Added new subsection M clarifying that water sources can be evaluated individually even when distributed through commingled delivery systems.

Added new subsection O defining 'assured water supply' to require 100-year water availability and consistency with management plans.

TIMELINE

Updated subsection H deadline from January 1, 2008 to December 31, 2023 for studying building permit requirements for multi-residence developments.

TECHNICAL

Minor formatting changes including updated header information, removal of outdated dates (1997, 1998, 2004, 2005, 2008), and reorganization of statutory text.

Floor votes · House Mar 10, 2025

How they voted

31–25

Passed · 4 other

Total votes 60

Mar 10, 2025

D Democratic27

25 Nay 2

92% Nay

R Republican33

31 Yea 2

93% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Mar 25, 2025

Upper · Passed

upper

Mar 10, 2025

Lower · Passed

PASSED

lower

Feb 26, 2025

Lower · Passed

DPA

lower

Feb 14, 2025

Lower · Passed

DPA

lower

1 primary · 0 co-sponsors