Environmental Compliance Inspector Environmental Hazards & Risk Assessment Flashcards
6 cards from real Environmental Compliance Inspector practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Environmental Compliance Inspector Environmental Hazards & Risk Assessment flashcards as text
In a Hazard Ranking System (HRS) evaluation, which factor receives significant weighting when scoring a site for potential NPL listing?
Answer: Proximity of contamination to drinking water sources
The HRS heavily weights the proximity of contamination to populations served by drinking water supplies, as this represents a critical exposure pathway.
What is the primary purpose of establishing institutional controls as part of a site remediation plan?
Answer: To restrict land use and prevent exposure to residual contamination that remains in place
Institutional controls such as deed restrictions and zoning limitations prevent future land uses that could result in unacceptable exposure to contamination left in place.
An environmental compliance inspector is reviewing a facility's Tier II chemical inventory report. Under which federal law is this reporting required?
Answer: Emergency Planning and Community Right-to-Know Act (EPCRA)
EPCRA Section 312 requires facilities that store hazardous chemicals above threshold quantities to submit annual Tier II inventory reports to local emergency planning committees.
When calculating a hazard quotient (HQ) in a non-cancer risk assessment, what does an HQ value greater than 1.0 indicate?
Answer: The estimated exposure exceeds the reference dose, suggesting potential for adverse health effects
A hazard quotient above 1.0 means the daily exposure estimate exceeds the EPA reference dose, indicating a potential for non-cancer adverse health effects.
Which sampling strategy is most appropriate when an inspector suspects a contaminant plume is migrating through groundwater from a known source area?
Answer: Installing a transect of monitoring wells perpendicular to the estimated groundwater flow direction downgradient of the source
A perpendicular transect of wells downgradient of the source area allows the inspector to delineate the lateral extent of the plume as it migrates with groundwater flow.
Under the Clean Air Act, which EPA program specifically addresses the prevention of accidental releases of extremely hazardous substances from stationary sources?
Answer: Risk Management Program (RMP)
The Risk Management Program under CAA Section 112(r) requires facilities handling listed substances above threshold quantities to develop risk management plans addressing accidental release prevention.