What is the primary function of well caps?

The primary function of well caps is to prevent surface contaminants from entering the well. Well caps are designed to seal the top of a well, creating a barrier that protects the water source from potential pollution or contamination from surface runoff, debris, insects, and other environmental factors. This is crucial for maintaining the quality of the water extracted from the well and ensuring it remains safe for human consumption or agricultural use.

While enhancing water flow, providing access for maintenance, and filtering impurities are important aspects of water well management, these features do not specifically address the protective role that well caps play in safeguarding the water supply from external pollutants. Properly fitted well caps are essential for the overall integrity and safety of any well system.