Business / Agriculture / Underground Storage Tank: For purposes of Subtitle I of the Resource Conservation and Recovery Act, this is any tank used to store petroleum or hazardous substances regulated under the Comprehensive Environmental Response, Compensation, and Liability Act, the volume of which is 10% or more beneath the surface of the ground. This does not include, among other things, any farm or residential tank of 1,100 gallons or less capacity used for storing motor fuel for noncommercial purposes, tanks used for storing heating oil for consumptive use on the premises, or septic tanks.
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Underground Verb Synonyms: subterranean, buried, below-ground, sunken, covered
Underground Adjective Synonyms: resistance, partisans or partizans, freedom fighters, (in France) Maquis, insurgents, seditionaries or seditionists, insurrectionists, guerrillas or guerillas, extremists, revolutionaries, fifth-columnists, fifth column, saboteurs, subversives
Underground Noun Synonyms: secret, clandestine, concealed, hidden, covert, undercover, surreptitious, stealthy, private
Business / Human Resources (HR) / Think Tank: A group organized for the purpose of intensive research and problem solving, especially in the areas of technology, social or political strategy, or demographics. MORE
Entertainment / Photography / Tanks: Containers for holding chemical solutions for processing films and plates. MORE