UST Emergency Response & Spill Containment 3

Question 1

A delivery driver overfills a UST and spills fuel. Who bears primary responsibility for immediate cleanup of the spill?

Accepted Answer

Both the UST owner/operator and the delivery company share responsibility

Answer

Both the UST owner/operator and the product delivery company may share liability for spills; the owner/operator is always responsible for the UST system and the site.

Question 2

Which atmospheric condition increases the danger of vapor ignition during a petroleum spill cleanup?

Accepted Answer

Low wind speed, hot temperatures, and low atmospheric pressure

Answer

Calm, hot, low-pressure conditions reduce vapor dispersion and increase the concentration of flammable vapors near ground level, raising ignition risk.

Question 3

When must an owner/operator submit a 20-day report after confirming a UST release?

Accepted Answer

Within 20 days of confirming a release, describing initial abatement steps taken

Answer

EPA regulations require owners/operators to submit a report within 20 days of confirming a release that summarizes initial abatement measures and site information.

Question 4

Which of the following is a proper initial abatement measure after a confirmed UST release?

Accepted Answer

Remove as much of the regulated substance from the UST system as is necessary to prevent further release

Answer

Removing product from the tank to prevent further release into the environment is a required initial abatement step under 40 CFR 280.62.

Question 5

A UST site worker smells petroleum in a nearby storm sewer during routine operations. What should be the FIRST response?

Accepted Answer

Evacuate the area, eliminate ignition sources, and notify the supervisor immediately

Answer

Petroleum vapors in confined spaces like sewers present explosion hazards; evacuating and eliminating ignition sources is the immediate life-safety priority.

(UST) Underground Storage Tank Certification Practice Test

(UST) Underground Storage Tank Certification Practice Test

UST Emergency Response & Spill Containment 3