How many inches should casings for private wells extend above the ground surface?

The requirement for casings of private wells to extend above the ground surface is primarily to prevent contamination from surface water, debris, and other environmental factors. Extending the casing 6 to 12 inches above the ground creates a protective barrier that helps ensure that water entering the well is clean and safe for consumption. This height is typically sufficient to prevent water runoff and other contaminants from flooding into the well area, which could compromise the well's water quality.

In addition to contamination prevention, having the casing above this specified height allows for proper drainage away from the well structure and affords some protection from physical damage. The guidelines establishing this height have been informed by authorities in public health and environmental protection, ensuring that private wells can provide safe drinking water.