Main water shut off valve vs. city water shut off valve
The main water shut off valve is attached to the water line that goes into the water meter inside of your home.
The main shutoff valve is usually in your basement. Turning off this valve will stop water from entering your home.
The city water shutoff valve is also called a curb stop valve, curb cock or a
CC valve. It
is found at the property line on your driveway, back alley or front yard. The city water shut off valve connects to the underground water main near the street and can be turned off by the utility company.
Note: Residents in multi-residential units should contact their building manager to shut off water to their property. Check manufacturer's guidelines to shut off water to appliances in the unit.