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REGENESIS 11) Pour the applicable quantity of the pre-mixed RegenOxTm Activator into the oxidant:water solution. Mix the Oxidant and Activator using a power drill paint stirrer or other mechanical mixing device for at least 5 minutes until a homogenous mixture is formed. After mixing the RegenOxT"" mixture should be injected into the subsurface as soon as possible. 12) Do not mix more RegenOxT"" material than will be used over roughly 1 to 4 feet of injection so as to minimize potential above ground reaction/flocculation prior to injection. Transfer the contents of the mixing tank to the pump using gravity feed or appropriate transfer pump. (See Section 9.2: Pump Selection) For some types of pumps, it may be desirable to perform a volume check prior to injecting RegenOxTM 13) Connect the delivery hose to the pump outlet and the delivery sub-assembly. Circulate RegenOxT"^ though the hose and the delivery sub-assembly to displace air in the hose. NOTE: an appropriately sized pressure gauge should be placed between the pump outlet and the delivery sub-assembly in order to monitor application pump pressure and detect changes in aquifer backpressures during application. 14) Connect the sub-assembly to the drive rod. After confirming that all of the connections are secure,pump the RegenOxTM through the delivery system to displace the water/fluid in the rods. 15) Slowly withdraw the drive rods. Commonly RegenOxTM injection progress at 1- foot intervals. However, continuous injection while slowly withdrawing single lengths of drive rod(3 or 4 feet) is an acceptable option. The pre-determined volume of RegenOxTM should be pumped into the aquifer across the desired treatment interval. 16) Remove one section of the drive rod. The drive rod may contain some residual RegenOxTM. Place the RegenOxTM-filled rod in a clean, empty bucket and allow the RegenOx to drain. Eventually, the RegenOxTM should be returned to the RegenOxTM pump hopper for reuse. 17) Monitor for any indications of aquifer refusal. This is typically indicated by a spike in pressure as indicated or(in the case of shallow applications) RegenOxTM "surfacing"around the injection rods or previously installed injection points. At times backpressure caused by reaction off-gassing will impede the pumps delivery volume. This can be corrected by bleeding the pressure off using a pressure relief/bypass valve (placed inline between the pump discharge and the delivery sub- assembly) and then resume pumping. If aquifer acceptance appears to be low, as indicated by high back pressure, allow sufficient time for the aquifer to equilibrate prior to removing the drive rod. RegenOx Direct-Push Step-by-Step I www.regenesis.com 1949-366-8000