Which of the following is NOT a method for preventing surface and groundwater contamination?

Using an unsuitable disposal method for containers can lead to significant harm to the environment, including contamination of surface and groundwater. Proper disposal methods are critical to ensuring that any leftover pesticide residues do not leach into the soil and potentially enter water supplies. Established guidelines exist for the disposal of pesticide containers, often requiring them to be rinsed and disposed of through designated hazardous waste programs or recycling systems specifically designed for pesticide containers. Such measures help to mitigate the risk of chemical runoff and leaching, which can endanger aquatic ecosystems and human health.

The other methods mentioned, such as controlling spills immediately, mixing and loading pesticides away from water sources, and regularly checking equipment for leaks, are all proactive strategies that minimize the risk of contamination. These practices are vital in maintaining a safe and responsible approach to pesticide use, ensuring that accidental releases and leaks do not occur in proximity to water bodies.