What purpose does a "sanitary well seal" serve?

A "sanitary well seal" is designed to create a watertight barrier at the well casing, preventing surface water and potential contaminants from entering the well. This is essential in ensuring the quality of the groundwater by minimizing the risk of pollution from surrounding areas, such as septic systems or agricultural runoff. The seal effectively protects the groundwater source, which is crucial for maintaining safe drinking water and overall public health.

While enhancing the flow of groundwater, filtering contaminants, or measuring water levels are important aspects of water well management, they are not the primary functions of a sanitary well seal. Instead, the focus of the seal is on providing a secure closure that protects the water supply from external threats.