How far above ground level should a well casing extend?

The well casing should extend at least 12 inches above ground level to ensure proper protection from contaminants. This elevation helps prevent surface water, which may contain harmful pathogens and pollutants, from entering the well. By having a minimum of 12 inches of casing above ground, it creates a barrier that minimizes the risk of flooding and surface runoff affecting water quality.

This standard is often recommended by health and environmental regulations since a properly installed casing helps maintain the integrity of the well and safeguards the groundwater source. An extension less than this minimum height may not provide adequate protection, leading to increased vulnerability to contamination.