Humber/Ontario Real Estate Course 4 Exam Practice 2025 – The Comprehensive All-in-One Guide for Exam Success!

One effective preventative measure for ensuring safe well water is properly sealing the well cap. A well cap acts as a barrier that prevents contaminants, such as bacteria, insects, and debris, from entering the well system. If the well cap is not sealed correctly, there is a risk that harmful substances can infiltrate the water supply, potentially leading to health issues.

In contrast, while other options may contribute to water safety, they do not carry the same foundational importance as a secure well cap. For instance, installing a secondary filtration system can improve water quality, but it does not prevent contaminants from entering the well initially. Taking water samples periodically is helpful for monitoring water quality, but it does not actively prevent contamination. Regularly replacing the well pump, checking well depth, and using the well sparingly may have their uses in well maintenance but do not directly address contamination as effectively as ensuring a well cap is properly sealed. Thus, maintaining the integrity of the well cap is crucial for safeguarding well water from potential pollutants.