As time goes on NYC property owners continue to receive violations for not having a curb valve under the sidewalk. The first step is to determine if you have a curb valve or not, just because the city issued you a violation it does not necessarily mean that one does not exist.
A city inspector will issue a violation based on a visual inspection from above ground. If he or she does not see a curb valve sleeve or curb box they automatically assume you do not have a curb valve and issue a violation.
The licensed plumber should install a new curb box sleeve directly on top of the existing curb valve, back fill the soil that was removed when digging and complete the final restoration of the concrete once the sleeve is installed. It is important to make sure that the new sleeve is installed directly over the curb valve. If the sleeve is off center, there is a chance that curb key will not fit on top of the valve.
It is important for your licensed plumber to investigate the age and material of the existing pipe. If the existing pipe is old and corroded there is a good chance that the curb valve does not work. Your plumber should obtain as much information as possible on the age, condition and material of the existing pipe. At this time the property owner should understand the pros and cons of performing an exploratory excavation for an old pipe that was installed in 1950. When working with an old pipe it makes most sense to save the money for the exploratory excavation and allocate it towards installing a brand new pipe along with the curb valve.
It is common that an exploratory excavation is completed and a curb valve is located to only find out that the curb valve does not work or the pipe ends up leaking several months later. It is important your licensed plumber explains each option and takes the time to give his professional opinion.
If you opt into installing an entire new main with your curb valve the plumber must first apply for DEP permits before anything. It is important to make sure that your plumber is obtaining an on-site inspection for the new installation so you have documentation as well as a city sign off.