b'PIPELINE EMERGENCY RESPONSE GUIDELINESAppendix ALeak, Hazard, and Emergency Response InformationNatural GasPetroleum GasPetroleum LiquidsAnhydrous AmmoniaCarbon DioxideEthanolHydrogen GasSour Gas (H2S)Sour Crude Oil (H2S) Leak, Hazard, and Emergency ResponseINDICATIONS OF A LEAK See - liquid pooling on the groundXXX See - a white vapor cloud that may look like smokeXXX See - fire coming out of or on top of the groundXXXX See - dirt blowing from a hole in the groundXXXXXX See - a sheen on the surface of waterXXX See - an area of frozen ground in the summerXXXXXX See - an unusual area of melted snow in the winterXXXXX See - an area of dead vegetationXXXXXXXXX See - bubbling in pools of waterXXXXXX Hear - a loud roaring sound like a jet engineXXXXXX Hear - a hissing or whistling noiseXXXXXX Smell - an odor like rotten eggs or a burnt match(1)(1)XX Smell - an odor like petroleum liquids or gasolineXXXX Smell - an irritating and pungent odorXXX HAZARDS OF A RELEASE Highly flammable and easily ignited by heat or sparksXXXXXXX Will displace oxygen and can cause asphyxiationXXXXXX Vapors are heavier than air and will collect in low areasXXXXXXX Contact with skin may cause burns, injury or frostbiteXXXXXXX Initial odor may be irritating and deaden the sense of smellXX Toxic and may be fatal if inhaled or absorbed through skinXXX Vapors are extremely irritating and corrosiveXXX Fire may produce irritating and/or toxic gasesXXXXXXXX Runoff may cause pollutionXXXX Vapors may form an explosive mixture with airXXXXXXX Vapors may cause dizziness or asphyxiation without warning(1)(1)XX Is lighter than air - can migrate underground and into enclosed spacesXX EMERGENCY RESPONSE Avoid any action that may create a sparkXXXXXXX Do NOT start vehicles, switch lights or hang up phonesXXXXXXX Evacuate the area on foot in an upwind and/or uphill directionXXXXXXXXX Alert others to evacuate the area and keep people awayXXXXXXXXX From a safe location, call 911 to report the emergencyXXXXXXXXX Call the pipeline operator and report the eventXXXXXXXXX Wait for emergency responders to arriveXXXXXXXXX Do NOT attempt to operate any pipeline valvesXXXXXXXXX Take shelter inside a building and close all windows(2)(2)(2)(2) (1)The majority of these products are naturally odorless and only certain pipeline systems may be odorized (2)Sheltering in place is an alternative to evacuation when the products are toxic or the risk of fire is very low www.pipelineawareness.org 6-27-20 32 2020 by Pipeline Association for Public AwarenessPERG 2020 Final.indd 32 8/5/20 4:17 PM'