Ace the IFMA CFM Exam 2026 – Master Facility Management with Confidence!

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When removing an old underground storage tank that serviced a generator and the soil is contaminated with diesel, what action should be taken?

Notify the appropriate regulatory agency if applicable and acquire the services of a certified/licensed brownfield contractor to remediate.

When diesel-contaminated soil is involved in removing an underground storage tank, the key requirement is regulatory oversight and professional cleanup. Diesel is a hazardous hydrocarbon, so you don’t just pull the tank and backfill; you must notify the appropriate regulatory agency and bring in a certified or licensed brownfield contractor to assess the extent of contamination, obtain any needed permits, perform cleanup, and ensure proper disposal of impacted soils and any groundwater concerns. This approach protects human health and the environment, provides proper documentation, and ensures compliance with environmental laws.

Other approaches fall short because they either skip the cleanup and regulatory process, leave contamination in place, or address only the tank hardware without solving the soil issue.

Complete the storage tank removal and backfill the hole with clean soil.

Designate the area as a brownfield and discontinue plans for future building improvements that might disturb that area.

Replace the underground storage tank with a concrete storage tank that includes a leak detection system to ensure future contamination is avoided.