Regulatory Compliance & EPA Standards Flashcards

A heating oil tank serving a single family home that is NOT used for resale is regulated under which category?

Answer: Exempt UST under 40 CFR Part 280.10(b)

Heating oil tanks used at the premises where stored and not for resale are specifically listed as excluded from federal UST regulation under 40 CFR 280.10(b).

Under EPA standards, which method is NOT an acceptable form of financial assurance for UST corrective action and third-party liability?

Answer: Personal guarantee from the facility owner

A personal guarantee from an individual facility owner is not an acceptable financial assurance mechanism under 40 CFR Part 280 Subpart H.

When must an owner/operator notify the implementing agency of the permanent closure of a UST system?

Answer: At least 30 days before closure begins

Owners/operators must notify the implementing agency at least 30 days before beginning permanent closure or change-in-service operations.

What concentration of petroleum-contaminated soil may trigger a site assessment requirement under EPA guidance during UST closure?

Answer: Evidence of a release based on visual inspection or sampling

During closure, if evidence of a release is found through visual inspection, odor, or sampling results, a site assessment must be conducted to determine the extent of contamination.

Which EPA-approved lining material method is acceptable for upgrading an existing single-wall steel UST to meet current standards?

Answer: Epoxy resin interior lining with annual tightness testing

Interior lining using approved epoxy or similar resin materials, combined with annual tightness testing and 3-year lining inspections, is an accepted upgrade method.

Under 40 CFR Part 280 Subpart E, what is the primary purpose of the 'site assessment' during corrective action?

Answer: To define the nature and extent of contamination from a confirmed release

The site assessment characterizes the nature and extent of soil and groundwater contamination so that appropriate corrective action can be designed.

The EPA's 'Red Flags' for release detection failures include all EXCEPT which of the following?

Answer: Slight variation in reconciliation totals within the ATG tolerance threshold

Minor reconciliation variations within the ATG manufacturer's stated tolerance are expected and are not considered a release detection red flag.