Connecticut Water Service, Inc. is a non-operating holding company. As of December 31, 2014, the Company derived its income from the operations of its four subsidiaries, namely, The Connecticut Water Company (Connecticut Water), The Maine Water Company (Maine Water) (Connecticut Water and Maine Water together referred to as Regulated Companies), Chester Realty, Inc., (Chester Realty) and New England Water Utility Services, Inc. (NEWUS). The Company operates through three segments: Water Activities, Real Estate Transactions, and Services and Rentals. The Company's Water Activities segment includes the operations of the Regulated Companies. The Company's Real Estate Transactions segment involves the sale or donation for income tax benefits of its real estate holdings. The Services and Rentals segment includes the operations of its unregulated companies and certain unregulated transactions within Maine Water.