Mass. Gen. Laws ch. 165, § 1: Definitions

Section 1. In sections one to eleven, inclusive, the following words shall have the following meanings:—

''Corporation'' or ''company'', every person, partnership, association or corporation, other than a municipal corporation, and other than a landlord supplying his tenant, engaged in the distribution and sale of water in the commonwealth through its pipes or mains.

''Department'', the department of public utilities.