Volatile organic compounds are commonly groundwater contaminants.

• A. True
• B. False
• C. Not applicable
• D. Sometimes

Answer: (A)

Volatile organic compounds are a common groundwater contaminant because many VOCs come from widely used solvents, fuels, and industrial processes, and they have properties that promote movement in groundwater. Their volatility means they readily partition into soil gas and can contribute to vapor intrusion, while their solubility allows them to dissolve in water and form migrating plumes from the source. This combination of mobility and persistence, along with extensive historical releases, makes VOCs frequently detected in groundwater across many regions (think solvents like benzene, trichloroethylene, and tetrachloroethylene). So, the statement is true: VOCs are commonly encountered contaminants in groundwater, even though not every site will have them and behavior can vary with soil and hydrogeology.