Environmental Compliance Inspector Cheat Sheet 2026

The 30 highest-yield Environmental Compliance Inspector facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which of the following is considered a toxic pollutant under Section 307(a) of the Clean Water Act? → Mercury
2. What should be done if an inspection reveals an environmental violation? → Report the violation and recommend corrective actions.
3. Under the Clean Water Act, how frequently must a facility with an NPDES permit typically submit Discharge Monitoring Reports (DMRs)? → Monthly
4. What is the maximum recommended holding time for nitrate samples preserved at 4°C before laboratory analysis? → 48 hours
5. Which federal regulation establishes National Emission Standards for Hazardous Air Pollutants (NESHAP)? → 40 CFR Part 63
6. What role does environmental monitoring play in risk assessment? → It helps track and reduce the impact of pollutants on the environment.
7. Under EPA's Interim Clean Water Act Settlement Penalty Policy, which factor is NOT typically considered when calculating a civil penalty? → The facility's stock price performance
8. A compliance inspector is reviewing a facility's spill prevention plan for aboveground storage tanks (ASTs). Which regulation requires this plan? → SPCC Rule under Clean Water Act Section 311 (40 CFR Part 112)
9. When an inspector discovers a significant environmental violation during a compliance evaluation, what document must be issued to formally notify the facility? → Notice of Violation (NOV)
10. What does 'free product' refer to in the context of a UST release investigation? → Liquid petroleum floating on the groundwater surface as a separate phase
11. What does the term 'de minimis' risk level typically represent in an EPA human health risk assessment? → A cancer risk of 1 in 1,000,000 or less
12. What is the purpose of a Discharge Monitoring Report (DMR) submitted by a permitted facility? → To document self-monitored effluent data and demonstrate compliance with permit limits
13. How should an inspector handle discrepancies found during a follow-up inspection? → Document the discrepancy and recommend further corrective actions.
14. What should be done if hazardous materials are discovered during an inspection? → Alert the relevant authorities and ensure proper handling and removal.
15. Which federal statute gives the EPA authority to require cleanup of sites contaminated with hazardous substances and recover costs from responsible parties? → Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)
16. Why is accurate documentation crucial in environmental compliance inspections? → To maintain records for compliance and accountability.
17. Which sampling method is most appropriate for determining whether volatile organic compounds are present in groundwater at a monitoring well? → Low-flow purging with a peristaltic pump and zero-headspace vials
18. What is the maximum volume threshold that distinguishes a farm or residential UST from a regulated commercial UST under federal exemptions? → 1,100 gallons
19. Which Clean Air Act program requires major sources of air pollution to obtain permits that consolidate all applicable air quality requirements? → Title V Operating Permit Program
20. When documenting observations during a facility inspection, which practice best supports potential future enforcement actions? → Making contemporaneous written entries in a bound field notebook with permanent ink
21. What is the primary purpose of a Continuous Emissions Monitoring System (CEMS) at a regulated facility? → To provide real-time measurement of pollutant concentrations in stack emissions
22. Which U.S. agency has primary oversight of the federal Underground Storage Tank program? → U.S. Environmental Protection Agency (EPA)
23. What is the primary purpose of a Title V operating permit under the Clean Air Act? → To consolidate all applicable air emission requirements into a single document
24. What is the penalty for knowingly violating the Clean Water Act by discharging pollutants without a permit, per violation per day? → Up to $50,000 and/or imprisonment
25. Underground storage tanks (USTs) containing petroleum products are regulated primarily under which statute? → RCRA Subtitle I
26. Which of the following is a key component of an environmental hazard assessment? → Identifying the sources and potential impacts of environmental hazards.
27. Under RCRA, how long must a facility retain hazardous waste manifest records? → At least 3 years from the date the waste was accepted
28. What is the primary purpose of a risk assessment in environmental compliance? → To identify and mitigate potential environmental hazards.
29. When conducting a multimedia inspection at a large industrial facility, which approach is considered best practice? → Evaluate compliance across all environmental media and regulatory programs simultaneously
30. What is an example of an environmental impact statement (EIS)? → An analysis of a proposed dam project on local wildlife.