Relates to protection of certain potable water supplies

This bill updates state laws to strengthen the protection of potential inter-municipal water supplies stored in impoundments along streams. It directly affects water systems that serve multiple municipalities and ensures these specific water sources are classified with the highest level of water quality standards. The legislation also clarifies that small ponds within a stream's path are considered part of the stream and requires new water withdrawal permits to be valid for no more than ten years. These changes aim to provide clearer regulatory oversight for shared water resources without altering the fundamental definition of existing public water systems.