25 Pa. Code § 171.1
The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
Approved-Procedures, construction and products acceptable to the Department.
Garbage-All putrescible wastes, except sewage and body waste, including animal and vegetable offal.
Person-Any individual, partnership, corporation, association, municipality, county, authority, the Commonwealth or any other private or public entity.
Refuse-All nonputrescible wastes generally regarded and classified as rubbish, trash, junk and similar designations which have been rejected by the owner or possessor as useless or worthless to him.
Schools-School buildings, including grounds, where there are training facilities for teaching children, or offering instruction in any branch of knowledge, including public, private, parochial, eleemosynary, vocational or any institution intended for teaching from kindergarten to grade 12 on a classroom or organized basis.
Sewage-Any substance which contains any of the waste products or excrements or other discharge from the bodies of human beings or animals and any noxious or deleterious substances being harmful or inimical to the public health, or to animal or aquatic life, or to the use of water for domestic water supply or for recreation.
Sewerage system-Any system, whether community or individual, publicly or privately owned, for the collection and disposal of sewage or industrial wastes of a liquid nature, or both, including various devices for the treatment of sewage or industrial wastes.
Source-Any well, spring, cistern, infiltration gallery, stream, reservoir, pond or lake from which, by any means, water is taken either intermittently or continuously for use by the public.
Waters of this Commonwealth-All rivers, streams, creeks, rivulets, lakes, dammed water, ponds, springs and all other bodies of surface and underground water, or parts thereof, whether natural or artificial, within or on the boundaries of this Commonwealth.
Water supply-A source of water, as well as any and all water treatment, storage, transmission and distribution facilities.
25 Pa. Code § 171.1