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AN ORDINANCE TO AMEND CHAPTER 38 OF THE CODE OF THE CITY OF PORTSMOUTH, VIRGINIA, 1988, BY AMENDING SECTIONS 38-166(b), 38-168(b), (c) & (d), 38-170 through 38-174, 38-179(c) (1), 38-181, 38-185(a), 38-186(c), and 38-187(a) PERTAINING TO WATER, SEWERS AND SEWER DISPOSAL. BE IT ORDAINED by the Council of the City of Portsmouth, Virginia: 1. That Section 38-166(b) of the Code of the City of Portsmouth, Virginia, 1988, be amended by amending the Definitions of Air Gap, Backflow and Director and by adding the definitions of Backflow Preventer, Backpressure and Backsiphonage to read as follows: Section 38-166. Purpose and Definitions (b) Air gap: The unobstructed distance through a free atmosphere between the lowest perimeter of a water outlet and the flood-level rim of any receptacle. This distance shall be A minimum of two (2) times the diameter of the outlet. (In case of nearwalls, this distance shall be three (3) times the diameter of the outlet.) Backflow: The reversal of flow from its intended direction as result of backsiphonage or backpressure. Backflow Preventer: An approved assembly or device that prohibits the backflow of water. Backpressure: A pressure, higher than supply pressure, caused by a pump, elevated tank, boiler, air/steam pressure, or any other means, which may cause backflow. Backsiphonage: A type of backflow caused by a negative or reduced pressure in the supply piping. Director: The director of the department of public utilities or the director's designee. 2. That Section 38-168 (b), (c), and (d) of the Code of the City of Portsmouth, Virginia, 1988, be amended to read as follows: Section 38-168. Inspection to be at reasonable hours, etc.; warrant to enable inspection; termination of service to uninspected premises. (b) In addition to the warrant procedure set forth in subsection (a) of this section, the director may commence administrative proceedings to discontinue water service to uninspected premises.