Oil Tank Soil Testing & 21E Assessment, New Bedford

The tank is only half the risk. What is in the soil around it decides whether you have a simple removal or a reportable release, and Massachusetts does not leave it to chance. State rules require a contamination measurement within 24 hours of an underground tank coming out of the ground, so testing is built into every buried-tank job we do.

When You Need Testing on Its Own

Plenty of soil tests happen without a removal: a buyer doing due diligence before closing, an owner who smells oil or suspects an old leak, or a seller who wants a clean letter to hand the other side. We pull samples, send them to a Massachusetts-certified lab, and give you results you can actually act on.

If Numbers Come Back High

If a sample exceeds the reportable threshold, it becomes a regulated matter under the Commonwealth's oil and hazardous material cleanup law, Chapter 21E, administered by MassDEP. That triggers notification and cleanup obligations. Our Licensed Site Professional, the LSP the state requires to oversee these, scopes the work and manages it to closure. MassDEP even publishes a homeowner guide to removing an underground heating oil tank worth reading if you want to understand the process before you call.

Most jobs never get here. But when they do, you want the sampling and the paperwork done right the first time, because a 21E file follows the property. See how testing factors into total cost on our cost page.

Frequently Asked Questions

How much does oil tank soil testing cost?

On its own, soil testing typically runs $500 to $1,500 depending on how many samples and which lab analyses are needed. When it is part of an underground removal, the required post-removal sample is included in the job.

What is a 21E assessment?

Chapter 21E is the Massachusetts law governing cleanup of oil and hazardous material releases. A 21E assessment evaluates whether a release happened and what, if anything, must be cleaned up. If contamination is confirmed, a Licensed Site Professional oversees the response.

Who is liable if my soil is contaminated?

Under Massachusetts law, liability generally rests with the property owner, regardless of who installed or last used the tank. That is why testing and documentation matter so much at a sale.

Do you need soil testing & 21e assessment in New Bedford or a nearby town? Contact us today for an honest, no-pressure price. Call (774) 389-4777