['Tank Systems', 'Waste']
['Used Oil', 'Underground Storage Tanks', 'Hazardous Waste', 'Tank Systems']
04/26/2024
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Not all UST systems are federally regulated, although they may be regulated by the state or local agency that implements an UST program, and you should first check with them.
A federally regulated UST is defined as “any one or combination of tanks (including underground pipes connected thereto) that is used to contain an accumulation of regulated substances, and the volume of which (including underground pipes connected thereto) is 10 percent or more beneath the surface of the ground.” Federally regulated USTs meet one or more of the following criteria:
- Have a capacity of more than 110 gallons
- Contain regulated substances as defined as hazardous under the Comprehensive Environmental Response, Compensation, and Liability Act (with exceptions)
- Do not contain hazardous wastes regulated (i.e., listed or identified) under Subtitle C of the Solid Waste Disposal Act or a mixture of such hazardous waste and another regulated substance
- Are not part of a wastewater treatment system that is part of a wastewater treatment facility regulated under section 402 or 307(b) of the Clean Water Act.
Under 40 CFR part 280.11, the following groups of tanks are not included in the definition of an UST:
- Farm or residential tanks 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 where stored
- Septic tanks
- Tank systems in pipeline facilities (including gathering lines) regulated under the Natural Gas Pipeline Safety Act of 1968 (49 U.S.C. App. 1671 et seq.), the Hazardous Liquid Pipeline Safety Act of 1979 (49 U.S.C. App. 2001, et seq.), or in an intrastate pipeline facility regulated under State laws comparable to the provisions of law referred to in the two previous clauses
- Surface impoundments, pits, ponds, or lagoons
- Storm water or wastewater collection systems
- Flow-through process tanks
- Liquid trap or associated gathering lines directly related to oil or gas production and gathering operations
- Tanks in underground areas such as basements, cellars, and mineworking drifts, shafts or tunnels, if they are located on or above the surface of the floor.
You should refer to 40 CFR Part 280 for a complete definition. For general questions about the federal UST program, you can contact EPA’s RCRA, Superfund, and EPCRA Hotline at (800) 424-9346.
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['Tank Systems', 'Waste']
['Used Oil', 'Underground Storage Tanks', 'Hazardous Waste', 'Tank Systems']
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