As used in these Rules and Regulations, the following terms shall have the meanings indicated:
A pipe in a building or structure which conveys water from the house (outlet) side of the water meter to plumbing fixtures and other outlets.
The pipe and its appurtenances from the water main to and including the curb stopcock or gate valve located between the edge of the traveled way and the front (street) property line of the premises being served.
The pipe and its appurtenances from the water service connection to the street (inlet) side of the water meter of the building served.