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Bill

SB 2159

Relating to aquifer storage and recovery projects that transect a portion of the Edwards Aquifer.

89th Legislature (2025)

SB 2159 would establish conditions for water storage projects in underground formations that intersect the Edwards Aquifer, balancing drought preparedness against environmental and contamination risks.

Left pending in committee
#edwardsaquifer(s0068) #environmentalquality #texascommissionon(v0334) #environment--water(i0320) #medinacounty(g0003) #water--conservation(i097l) #water--development(i0875) #water--general(i0885)
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Bill Summary · SB 2159

Legislative bill overview

SB 2159 addresses the regulatory framework for aquifer storage and recovery (ASR) projects that intersect with the Edwards Aquifer in Texas. The bill appears to establish or modify conditions under which water can be stored in underground formations that overlap with this critical freshwater source, which supplies millions of Texans and supports endangered species habitats.

Why is this important

The Edwards Aquifer is one of Texas's most valuable and legally complex water resources, subject to federal protections under the Endangered Species Act and state regulations. ASR projects offer potential water security benefits during droughts, but injecting water through the Edwards Aquifer raises concerns about aquifer contamination, water quality, and impacts on protected species—making this a high-stakes policy decision for water management in Central Texas.

Potential points of contention

  • Environmental protection vs. water storage: Balancing drought-resilience needs against risks of contaminating a sensitive aquifer system and affecting endangered species like the San Marcos salamander and fountain darter
  • Regulatory authority: Defining which state and federal agencies have jurisdiction over ASR projects and whether current protections are adequate
  • Long-term liability: Questions about who bears responsibility if stored water degrades aquifer quality or causes unforeseen ecological impacts

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

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