Regulatory Compliance & EPA Standards Flashcards

Under EPA's 2015 UST rule, which new requirement applies specifically to spill prevention equipment (spill buckets)?

Answer: Testing for tightness every 3 years or upon repair

The 2015 rule requires that spill prevention equipment be tested for tightness every 3 years, or within 6 months after any repair, to verify integrity.

Which entity has primary enforcement authority for UST regulations in states that have received EPA approval of their UST program?

Answer: The approved state agency

In states with EPA-approved UST programs, the state implementing agency has primary enforcement authority and operates in lieu of the federal program.

A petroleum UST system that is temporarily closed must implement which minimum requirement to remain compliant during the temporary closure period?

Answer: Release detection must continue and corrosion protection must be maintained

During temporary closure, owners/operators must continue release detection and maintain corrosion protection as long as regulated substances remain in the tank.

Under 40 CFR Part 280 Subpart H, what is the minimum amount of financial assurance required for petroleum UST owners/operators with 1–100 tanks?

Answer: $500,000 per occurrence for corrective action; $1 million annual aggregate

Owners/operators with 1–100 petroleum USTs must maintain $500,000 per occurrence for corrective action and $1 million annual aggregate for third-party compensation.

What is the EPA's regulatory position on 'emergency generators' fueled by diesel and their applicability to UST regulations?

Answer: Diesel fuel tanks for emergency generators above 110 gallons are regulated USTs

Emergency generator diesel fuel tanks that meet the UST definition (underground, greater than 110 gallons) are regulated unless they qualify for another specific exemption.

Under the EPA's UST regulations, 'interstitial monitoring' is a release detection method applicable to which type of tank system?

Answer: Double-wall (secondarily contained) tank systems

Interstitial monitoring detects leaks in the annular space between the inner and outer walls of double-wall (secondarily contained) UST systems and piping.

Which of the following scenarios would qualify a site for 'risk-based corrective action' (RBCA) under EPA guidance for UST releases?

Answer: Site-specific conditions show low risk to receptors based on exposure pathway analysis

RBCA allows cleanup goals to be set based on site-specific risk assessment, considering actual exposure pathways and receptor populations rather than fixed universal standards.