gPRO® is a gas delivery technology capable of infusing high amounts of dissolved gas into liquids under pressure.  The gPRO® system can be used to infuse gas (for example oxygen) into water in a tank which then can be injected into the aquifer; or infuse water that has been pumped out of an aquifer and treated ex-situ and then re-injected back into the aquifer; or retrofitted to a pump and treat system significantly shorten time to site closure.  Infusion is accomplished without additives such as hydrogen peroxide, ozone or other agents with potentially harmful side effects.