b'PIPELINE EMERGENCY RESPONSE GUIDELINESAppendix Aleak, Hazard & emergency anHydrous ammonIa Hydrogen gas s)petroLeum LIquIds etHanoL sour crude oIL (H 2reSponSe InformatIon petroLeum gas carbon dIoxIde sour gas (H s)naturaL gas 2IndIcatIons of a LeakSeeliquid pooling on the groundSeea white vapor cloud that may look like smokeSeefire coming out of or on top of the groundSeedirt blowing from a hole in the groundSeea sheen on the surface of waterSeean area of frozen ground in the summerSeean unusual area of melted snow in the winterSeean area of dead vegetationSeebubbling in pools of waterHeara loud roaring sound like a jet engineHeara hissing or whistling noiseSmellan odor like rotten eggs or a burnt match 1 1Smellan odor like petroleum liquids or gasolineSmellan irritating and pungent odorHazards 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 frostbiteInitial odor may be irritating and deaden the sense of smellToxic and may be fatal if inhaled or absorbed through skinVapors are extremely irritating and corrosiveFire may produce irritating and/or toxic gasesRunoff may cause pollutionVapors may form an explosive mixture with airVapors may cause dizziness or asphyxiation without warning 1 1Is lighter than air and can migrate into enclosed spacesemergency responseAvoid any action that may create a sparkDo NOT start vehicles, switch lights or hang up phonesEvacuate the area on foot in an upwind and/or uphill direction 2 2 2 2Alert others to evacuate the area and keep people away 2 2 2 2From a safe location, call 911 to report the emergencyCall the pipeline operator and report the eventWait for emergency responders to arriveDo NOT attempt to close any pipeline valvesTake shelter inside a building and close all windows 2 2 2 2note (1)The majority of these products are naturally odorless and only certain pipeline systems may be odorized.note (2)Sheltering in place is an alternative to evacuation when the products are toxic or the risk of fire is very low. Refer to Evacuate vs. Shelter-in-Place Technical Guidance provided online at bit.ly/linkhere. 932 2022 by Pipeline Association for Public Awareness'