Liquefied Petroleum Gases Bulk Storage Regulations — 18
18 (1) The distances prescribed in this section shall be measured from the nearest point on the tank shell to the nearest point of the building, property line, etc. (2) A storage tank with a water capacity exceeding 2,000 Imperial gallons shall be not less than 50 feet from any location on another property which may be built upon. (3) For a tank with a water capacity of 2,000 Imperial gallons or less, the distance from any location on another property which may be built upon shall be not less than that prescribed in the current edition of National Fire Protection Association Pamphlet No. 58. (4) A storage tank with a water capacity exceeding 2,000 Imperial gallons shall be at least 400 feet from any station, office building, or other similar places of public assembly on railway property. (5) It is recommended that the distance of a storage tank with a water capacity exceeding 2,000 Imperial gallons from schools, hospitals, theatres, residential areas or other similar places of public assembly be not less than 400 feet. (6) For a tank with a water capacity of 2,000 Imperial gallons or less, the distance from any of the buildings mentioned in subsections (4) and (5) shall be not less than that prescribed in the current edition of National Fire Protection Association Pamphlet No. 58. (7) Except as provided in subsection (9), a storage tank with a water capacity exceeding 2,000 Imperial gallons shall not be less than 200 feet from engine houses, railway shops, grain elevators or other similar buildings. (8) For a tank with a water capacity of 2,000 Imperial gallons or less, the distance from any of the buildings mentioned in subsection (7) shall not be less than that prescribed in the current edition of National Fire Protection Association Pamphlet No. 58. (9) Except as provided in subsection (11), the distance of a storage tank with a water capacity exceeding 100 Imperial gallons from any building on the installation site that is used exclusively by the company owning or operating the installation shall not be less than 10 feet. (10) A tank with a water capacity of 100 Imperial gallons or less shall not be less than 5 feet horizontally from a building opening located at the same level as the tank vent or below it. (11) When the construction or occupancy of a building is of such a nature as to constitute a hazard to the storage area, the distance between such a building and the closest tank with a water capacity exceeding 100 Imperial gallons shall not be less than 50 feet. (12) The distance of any storage tank from the fence surrounding the installation shall not be less than 5 feet. (13) The clear distance between two storage tanks with an individual water capacity exceeding 2,000 Imperial gallons shall not be less than 5 feet. (14) The clear distance between a tank containing liquefied petroleum gas and a tank containing a flammable liquid shall not be less than 20 feet, except that liquefied petroleum gas installations with a storage capacity exceeding 150,000 Imperial gallons of water measured at 60°F shall be located not less than 100 feet from the above ground storage of flammable liquids. (15) A liquefied petroleum gas storage tank shall not be located within a diked area containing a flammable liquid storage tank.  The distance between a tank measured from the nearest point on the tank shell and the centre line of a dike shall not be less than 10 feet. (16) The distance between any tank of one group and any tank of another group, as defined in section 22, shall not be less than 25 feet.