WDO Home Inspection Practice Exam 2025 – Comprehensive Prep Guide

The choice that identifies wells as one of the most common causes of contamination in pesticide application is correct because wells can serve as direct pathways for pesticide runoff or leaching into groundwater. When pesticides are improperly applied or when there is overspray, they can easily infiltrate the soil and reach well water, which is a critical source of drinking water for many households. Contamination of groundwater is particularly concerning as it can affect not only personal health but also the broader ecosystem.

In addition, since wells are typically deeper and can tap into aquifers, any contamination from pesticides can persist and spread over time, making it a significant issue for public health and safety. Effective management practices and regulations are vital to prevent such contamination, emphasizing the importance of careful pesticide application, especially in areas near well sources.