Relating to the regulation of stormwater management by certain counties.

HB 4135 would require specific Texas counties to regulate stormwater management. It applies to counties with populations of 2.8 million or more, or counties with certain water resources like the Edwards Aquifer or within the Hill Country Priority Groundwater Management Area. The bill amends state law to define which counties must adopt stormwater management regulations, focusing on areas with significant population or water resource concerns. This change would directly affect those designated counties' local governance of stormwater systems.