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HB 2272

municipal separate storm sewer system

57th Legislature - First Regular Session Introduced by Gail Griffin

Arizona HB 2272 adjusts municipal stormwater system regulations to modify compliance requirements and state oversight of urban stormwater infrastructure management.

Signed by Governor
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Bill Summary · HB 2272

Legislative bill overview

HB 2272 modifies Arizona's regulations governing municipal separate storm sewer systems (MS4s)—the networks of pipes and channels that collect and convey stormwater runoff in urban areas. The bill adjusts state oversight requirements and compliance standards for these systems to reduce regulatory burden while maintaining environmental protections.

Why is this important

Municipalities manage billions in stormwater infrastructure assets, and regulatory requirements directly affect local budgets, planning timelines, and infrastructure investments. Changes to MS4 compliance rules impact water quality in receiving bodies, flood management effectiveness, and costs ultimately passed to residents through utility fees or taxes.

Potential points of contention

  • Environmental standards vs. municipal costs: Stricter stormwater quality requirements protect waterways but increase infrastructure spending; looser standards reduce costs but may degrade water quality and aquatic ecosystems
  • State vs. local control: Adjustments to state oversight authority affect municipal flexibility in designing solutions versus ensuring statewide environmental consistency
  • Implementation timeline: Changes to compliance deadlines and reporting requirements could either help municipalities adapt or create uncertainty in long-term planning

Compiled from official sources — confirm details with the bill’s official record.

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