Reservoir, tanks, etc

(1) No person shall place, store or hold in any reservoir, stationary tank or other container, having a capacity of 50.000 or more gallons, any gasoline or any petroleum product that has Environmental Protection 105 a rebate pressure higher than 5.O pounds per square inch absolute or greater under actual storage conditions, unless such reservoir, tank or other container is a pressure tank that maintains working pressure sufficient at all times to prevent hydrocarbon vapour or gas loss to the atmosphere, or is equipped with one of the following vapour loss control devices, properly installed in good working order and in operation– (a) a floating roof consisting of a pontoon type or double–deck type roof resting on the surface of the liquid contents and equipped with a closure seal to close the space between the roof–ease and tank–well and a vapour balloon or vapour dome, designed in accordance with standards approved by the Department; (b) other equipment approved by the Department to be of equal efficiency for preventing discharge of hydrocarbon gases and vapours into the atmosphere. (2) Any other petroleum storage tank which is constructed or extensively remodelled on or after the commencement of these Regulations shall be equipped with a submerged filling device or acceptable equivalent for the control of hydrocarbon (3) Subregulation (2) above shall only apply to new sources.