A municipal water supply control system includes an underground water main, at least one water consumer station downstream from the water main, and an underground water delivery channel joining the water main to the water consumer. Underground valve means may be located either in the underground water main, the underground water delivery channel or in between the two for controlling the passage of water to each water consumer. Underground valve actuation means responsive to an activation signal activate the underground water valve means between a closed condition and an open condition. A data channel means establishes a wired or wireless data channel between a valve activation control means for issuing the activation signal and the underground valve actuation means.