Section 16(1)(b) in Kerala Water Supply and Sewerage Act, 1986
(b)(i)all the water supply and sewerage services, sewerage works and sewage farms including all the plants, machineries, pumping stations, distribution lines and public sewers in, along, over or under any public street and all buildings, lands and other works, materials, stores and things appertaining thereto; and(ii)so much of the sub-soil appertaining to the said distribution lines and sewers as may be necessary for the purpose of enlarging, deepening or otherwise repairing or maintaining any such distribution lines and sewers or any pipes and other appliances and fittings connected with such water supply and sewerage services and sewerage works vested in any local body and in respect of which maintenance of sewerage services and sewerage works, management and distribution of water supply or collection of charges which immediately before the appointed day were attended to by the Public Health Engineering Department, shall vest in and stand transferred to the Authority;