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Disposal of Tanks <br />Tanks should be labeled with information about the <br />former contents, present vapor state, vapor -freeing <br />treatment method, and warning against reuse. <br />Tanks should be removed from the site promptly and <br />preferably the same day as taken from the ground, <br />because additional vapor can be released from liquid <br />absorbed in tank wall corrosion or residues. However, <br />before removal the tank atmosphere must be checked <br />to ensure the flammable vapor concentration does not <br />exceed safe levels. <br />Tanks Abandoned in Place <br />Tanks abandoned in place shall be as follows: <br />J.. <br />• Flammable and combustible liquids removed from the tank and connected piping. <br />• The section, inlet, gauge, vapor return, and vapor lines disconnected. <br />• The tank is to be filled completely with an approved inert solid material. <br />• Remaining underground piping capped plugged. <br />• No cutting torch or other flame, or spark, producing equipment should be used until the tank <br />has been completely purged or otherwise rendered safe. <br />• A record of tank size, location, and date of abandonment shall be retained. <br />• All exterior above -grade fill piping permanently removed when tanks are abandoned or <br />removed. <br />Fire Marshal's Office 425.257.8100 1 everettwa.gov/fire I INFORMATION HANDOUT P-3 8.1.2019 1 Page 3 <br />