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Question DetailsAsked on 12/4/2017

cost of replacing a 275 gallon above ground oil tank

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Here are a couple of previous similar questions (one outdoor, one basement tank) which also have links to a number of previous related questions, which should help. The tank itself, depending on whether it has to be double-wall or not, typically runs about $250-700 retail - installed cost likely to be $1000-1200 range NOT including any elevated stand or replacement of the fuel line to the house, which should normally be replaced at the same time if this tank is being replaced due to corrosion - because you do NOT want an in-ground oil leak to go on and on for years. Both costly for the lost fuel and way more costly to clean it up down the road.

If your area requires a double-walled tank with built-in leak monitoring (I have only seen this requirement on underground tanks) or a secondary plastic liner underneath it (underground, again) typically more on the $2000-2500 installed side.

Now to the removal of the old one - commonly in the $500-800 range for above-ground tank (tank only), more in the $1000-1500 range commonly for underground tanks - plus any oil-contaminated soil cleanup, which can run from around $500 minimum to into the hundreds of thousands if it has been leaking for a long time or a large leak. Every case is different - and roughly 80% of outdoor oil tanks which have been in place for more than a couple of years have contaminated soil which needs to be cleaned, and almost over 20 years old have significant oil spillage or leakage.

To get a feel for what is required and what sort of state certifications uyou should be looking from your contractor (for residences they have state, not EPA certifications) check out your state's website on residential AST (Above Ground Storage Tank) or UST (Underground Storage Tank) removal regulations and required cleanup certifications and such. For that size tank (typically for 500 gallons or less capacity) there are less stringent requirements than for larger or commercial tanks, so be sure to read the right regs.

Answered 2 years ago by LCD

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