Relating to management plans adopted by groundwater conservation districts.

HB 3609 requires Texas groundwater conservation districts to update their management plans using the best available data and include specific elements, such as the most recently approved "desired future conditions" for groundwater and corresponding modeled available groundwater amounts. Districts must amend plans before the second anniversary of adopting these conditions, and if a petition challenges a condition's reasonableness, plans must include status updates and additional details until the challenge is resolved. The executive administrator must approve complete plans within 60 days of receipt, ensuring districts meet all required content standards. This bill directly affects groundwater conservation districts across Texas, streamlining how they develop and revise plans to align with state water planning processes.