Above ground tank? Below ground tank?
State and Federal statutes and regulations define a tank as “an underground tank” if at least 10% of that tank is below grade. Most “aboveground” tanks are 270 gallon tanks, like the tank pictured here. That means that if 6 or more inches of a tank are below grade, not visible aboveground, the tank is defined as an “underground tank.”
This tank is an underground oil tank and is subject to the underground tank rules not the aboveground tank rules.
And that sort of makes sense. You can monitor the bottom of an aboveground tank for leaks whereas you cannot monitor the bottom of an underground oil tank.
Currently the State is not enforcing cleanup rules on residential underground oil tanks. They are enforcing cleanup rules on residential aboveground oil tanks. That can be an advantage.
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