California Wastewater Treatment Operator Practice Exam

The correct answer highlights a significant concern regarding the impact of climate change on wastewater treatment facilities: the increase in the frequency and intensity of rainfall and flooding. As global temperatures rise, the atmosphere can hold more moisture, leading to heavier rainfall events. This change can overwhelm wastewater treatment systems, which may not be designed to handle such extreme weather conditions.

As a result, facilities may experience increased inflow rates, which can lead to bypassing treatment processes, potential contamination of receiving water bodies, and greater difficulty in achieving regulatory compliance. Flooding can also pose physical threats to the operation of the facilities, damaging infrastructure, and disrupting service.

This increased intensity and variability in precipitation patterns is also linked to climate change, exacerbating the challenges faced by wastewater treatment plants and necessitating adaptations in their design and operations to ensure they can withstand such impacts effectively.