What item is NOT allowed within 150 feet of a well?

The correct answer to the question regarding what item is NOT allowed within 150 feet of a well is septic tank drain fields. This regulation is rooted in public health and safety concerns, as septic systems can introduce contaminants into the groundwater if located too close to a well. The proximity can lead to the potential for pathogens, nutrients, and other harmful substances from septic systems to enter the water supply, which can pose significant risks to human health when the well water is consumed.

Septic tank drain fields are designed to treat wastewater, and any failure in the system or heavy rainfall can create conditions that allow contaminants to migrate toward a well. This guideline helps to ensure that drinking water remains uncontaminated and safe for consumption.

While sewage treatment plants, cemeteries, and livestock facilities also have associated risks concerning groundwater contamination, regulations specifically focus on the closeness of septic systems due to their direct interaction with wastewater and the risk they pose when improperly sited.