Abstract: An ozone delivery system, method, and apparatus are disclosed. Ozonated water can be used to disinfect and dean various surfaces, equipment, and animals in a dairy setting. Animals can be disinfected and protected from disease through the use of wash-pen and sprayer injections, and other footbath products. Ozone can be educted into a drop hose and a pre-dip line at periodic intervals and into a foot bath to provide refreshed ozonated water. The ozone delivery system and method sterilizes all equipment and floor surfaces without damaging diary equipment components. The system can incorporate computer-controlled options such as maintaining of gas levels, monitoring ozonated water levels, monitoring concentrations of ozone in said ozonated water, controlling entry and exit gates, controlling a drainage system, and monitoring and educting ozone in a foot bath and wash pen.