1. (a) Subdivision shall have the meaning ascribed to it in section 1115 of the Public Health Law.
2. (b) Developer means a person, partnership, corporation or other legal entity undertaking or participating in the establishment of a subdivision.
3. (c) Individual water supply system means a single system of piping, tanks or other facilities together with a source of water intended to supply only a single lot.
4. (d) Individual sewerage system means a single system of piping, tanks or other facilities serving only a single lot and disposing of sewage or other liquid wastes into the soil of the lot.
5. (e) Community water system means a source of water and necessary appurtenances together with a distribution system serving more than one lot, whether owned by a municipal corporation or private utility.
6. (f) Community sewerage system means a system utilized for the collection and disposal of sewage, or other wastes of a liquid nature, including the various devices for the treatment of such wastes serving more than one lot, whether owned by a municipal corporation or private utility.
7. (g) Comprehensive study shall have the meaning ascribed to it in sections 1263-a and 1361 of the Public Health Law, for public sewerage and refuse respectively, or in section 442 of the Conservation Law, for public water, as applicable.
8. (h) Department means the New York State Department of Health.
9. (i) Commissioner means the New York State Commissioner of Health.
10. (j) Dry sewer means a pipe intended to carry domestic waste at such future time as sewerage and treatment facilities are constructed.

As used in this Part, unless the context otherwise requires: