b'Products and FacilitiesPetroleum Gas(DOT ERG 115)Petroleumgasisamixtureofgaseoushydro-carbons, primarily propane, butane and ethane. Theseproductsarecommonlyusedforcook-ing,heatingandotherindustrialapplications. They are easily liquefied under pressure and are often stored and transported in portable contain-erslabeledasLiquifiedPetroleumGas(LPG). Whentransportedintransmissionpipelines theymayalsobeidentifiedasHighlyVolatile Liquids (HVLs) or Natural Gas Liquids (NGLs). VaporizedLPGmayalsobefoundinsmaller gasdistributionsystems.Typically,LPGisa tasteless, colorless and odorless gas. When trans-portedviatransmissionpipelinesitnormally will not have odorant added. Odorant is added when LPG is offloaded to a distribution pipeline system or transport tanks toSection Videofacilitate leak detection. Ethylene and propylene do have a faint natural odor like petroleum. https://vimeo.com/430807720 Indications of a LeakA white vapor cloud that may look like smokeA hissing or whistling noiseAn odor like rotten eggs or a burnt match (if odorized)A faint odor like petroleum liquids or gasoline (Ethylene and Propylene)Fire coming out of or on top of the groundDirt blowing from a hole in the groundA sheen on the surface of waterAn area of frozen ground in the summerAn unusual area of melted snow in the winterAn area of dead vegetationBubbling in pools of water Hazards of a ReleaseHighly flammable and easily ignited by heat or sparksWill displace oxygen and can cause asphyxiationVapors are heavier than air and will collect in low areasContact with skin may cause burns, injury, or frostbiteFire may produce irritating and/or toxic gasesVapors may form an explosive mixture with air11 2023 by Pipeline Association for Public Awareness'