What is one method to protect a well from surface water contamination?

Installing a wellhead protection area is a crucial method for safeguarding a well from surface water contamination. This approach involves establishing a designated area around the well that limits activities that could introduce pollutants to the groundwater supply. By creating a buffer zone, it becomes easier to monitor and manage potential sources of contamination, such as agricultural runoff, septic systems, or industrial discharge.

The wellhead protection area typically includes regulations on land use and encourages practices that promote the health of the groundwater. This proactive strategy ensures that the surrounding land is managed in a way that minimizes the risk of harmful substances entering the well, thus preserving the quality of the drinking water.

In contrast, the other strategies mentioned may not effectively address the issue of surface water contamination. For example, chemical treatments may temporarily manage certain water quality issues but do not prevent contaminants from entering the well. Deepening the well might help access cleaner water layers, but it does not address surface water impacts. Similarly, building barriers around the well could provide physical protection, but without proper zoning and land management practices, surface water can still infiltrate the groundwater supply.