Conn. Gen. Stat. § 19a-209b

No person who owns a private residential well that (1) currently supplies or previously supplied water to another household, and (2) provides or previously provided continuous water service to such household for a period of at least fifty years, may discontinue such water service in the absence of an alternative, available source of water for such household. Each household to whom the private residential well supplies water shall contribute equally to the costs associated with maintaining the well.