Supply valves are provided to shutoff service to individual appliances.
(See image for example supply valves.)
City of Celina Shutoff Valve
Your water meter is located in a concrete or plastic box in the ground, generally in front of your house and near the side property line. The city’s shutoff valve is located between the meter and the street and should only be accessed by authorized city staff.
It is important to keep the box free of plants and roots that can obstruct or hide the meter or damage the service line.