Pesticide spills near wells can move directly and quickly into ground water. Avoid mixing, storing, or disposing of pesticides within 100 feet of a well. Some pesticide labels may recommend greater distances. Properly close all abandoned wells and never dispose of wastes in unused wells. Staying within the label rate can help to minimize potential groundwater contamination.
Careful calculations help eliminate disposal problems associated with excess spray mix.
Check the equipment for leaks and malfunctions to minimize the potential for accidents and spills. If possible, mix and load on a concrete surface to avoid saturating the soil with pesticide. Use a longer hose or fill the tank in the field using an alternate water source such as a nurse tank. When possible, add the pesticide concentrate to the sprayer in the field. Be careful to avoid overflow.