Amend CSSB 1 by adding the following section and renumber the subsequent sections accordingly: SECTION ____. Subchapter J, Chapter 26, Water Code, is amended by adding Section 26.408 to read as follows: Sec. 26.408. SOLE SOURCE AQUIFER PROTECTION. (a) The adoption or issuance of a rule, regulation, policy, guideline, or other measure by the commission which is intended to prevent the pollution of an aquifer designated as a "sole source" aquifer under the federal Safe Drinking Water Act (42 U.S.C. Section 300h-3(e)) shall impose identical requirements or restrictions for all of the territory within the recharge area and for all of the territory within the contributing zone of the aquifer. (b) The adoption or issuance of an ordinance, rule, regulatory requirement, resolution, policy, guideline, or other measure by a municipality located entirely or partially within the boundary area of an aquifer designated as a "sole source" aquifer under the federal Safe Drinking Water Act (42 U.S.C. Section 300h-3(e)) which (i) is intended to prevent pollution of an aquifer and (ii) has effect in the municipality's extraterritorial jurisdiction, shall impose identical requirements or restrictions for all of the territory within the recharge area and contributing zone of an aquifer located within the municipality's corporate limits and extraterritorial jurisdiction.