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SB 1116

groundwater model; receipt; written findings

57th Legislature - First Regular Session Introduced by Tim Dunn

Arizona bill requiring groundwater decisions to rely on peer-reviewed scientific models and documented written findings; Governor vetoed after legislative passage.

Vetoed by Governor
0
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Bill Summary · SB 1116

Legislative bill overview

SB 1116 requires Arizona water authorities to base groundwater withdrawal decisions on peer-reviewed groundwater models and to provide written findings explaining their determinations. The bill establishes procedural requirements for how water management agencies must document and justify their groundwater usage decisions using scientific evidence.

Why is this important

Arizona faces chronic groundwater depletion, with aquifers being drained faster than they naturally recharge. This bill attempts to ensure groundwater management relies on current scientific data rather than outdated assumptions, potentially affecting agriculture, municipalities, and long-term water security for the state's growing population.

Potential points of contention

  • Agricultural impact: Farmers concerned the bill could restrict groundwater pumping rights they've historically relied on, affecting irrigation-dependent operations in rural Arizona
  • Implementation costs: Water agencies may face significant expenses updating or developing new peer-reviewed groundwater models to comply with requirements
  • Vagueness on enforcement: The bill's written findings requirement lacks clear penalties or enforcement mechanisms, potentially making compliance discretionary rather than mandatory
  • Model availability: Peer-reviewed groundwater models may not exist for all regions, creating compliance challenges for smaller water authorities

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

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