The Best Test For Tanks

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There are many methods to test for underground tank leakage. So what's the prefered method? Although no method is foolproof, soil testing is the most accurate and reliable method. This manual method consists of boring holes around the perimeter of the tank and taking soil samples, sort of like a biopsy of the soil.

The samples are then tested for any oil leakage, and if positive, you know there is a leaker. The benefit of using soil testing is that besides knowing if it's leaking, we also get a feel for how much it's leaking.


I have a company that wants me to take a water test to check for water in the oil tank. They said that if it's leaking then water would be getting into the tank. Is that true?

It sort of is true. That is - if you do find the presence of water you probably have a problem, but it isn't true that if you don't find water you don't have a problem.

And even finding water might not be the end of the world. Suppose a cap was left off? Or suppose there was corrosion on top of the tank? Water would get in, but no oil would get out.

Bottom line is that it's a very inconclusive test. We do use it ourselves, but certainly not as a final diagnosis.

We offer a free, no obligations estimate, advice, and consultation.

Oil Tank Services
505 East First Avenue
Roselle, NJ 07203

TOLL FREE: (866) 675-TANK [8265]
Local: (908) 241-5011, (908) 241-5503
Fax: (908) 241-5155

Fully insured and licensed by the
New Jersey Department Of Environmental Protection

LIC # US01134