Section 580.10 - Leaks From Gasoline Transport Tanks and Vapor Control Systems580.101Applicability This Section shall apply to all gasoline transport tanks and all facilities subject to 580.4, 580.5, and 580.6 of the Northwest Clean Air Agency Regulation.580.102Transport Tanks (also referred to as cargo tanks) It shall be unlawful for any person to cause or allow the transfer of gasoline between a facility subject to the requirements of this Section and a gasoline transport tank unless: 580.1021 a current (within 365 days) vapor tightness test certification for the transport tank is on file with the facility or is available in the transport vehicle. (a) The vapor tightness test shall be conducted annually in accordance with the procedures specified in 40 CFR 63.425(e) and;(b) The complete vapor tightness certificate shall be on a form approved by the Northwest Clean Air Agency.580.1022 It is loaded and unloaded in such a manner that the concentration of gasoline vapors is below the lower explosive limit (expressed as propane) at all points a distance of 2.5 cm (1 inch) or greater from any potential leak source. Any transport tank which fails to meet the requirements of this subparagraph shall be repaired and retested in accordance with 40 CFR 63.422(c) prior to reloading. 580.103Vapor Control Systems It shall be unlawful for any person to cause or allow the operation of any facility subject to this Section unless the vapor control system and the gasoline loading equipment is operated during all loading and unloading of gasoline such that: 580.1031 The concentrations of gasoline vapors is below the lower explosive limit (expressed as propane) at all points a distance of 2.5 cm (1 inch) or greater from any potential leak source; and580.1032 There are no liquid leaks in excess of three drops per minute and there is no more than 10 ml of liquid drainage per disconnect. Wash. Admin. Code Northwest Clean Air Agency, 500, 580.10
PASSED: December 13, 1989 AMENDED: November 12, 1999