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ISOTEC Groundwater Test Experimental Setup ISOTEC groundwater test is designed to simulate a situation where the reagents would attach only dissolved contaminants in site groundwater. Typically, results from this test are used to evaluate the performance of the chem-ox process under ideal conditions (i.e. no interference from soil organic matter) and compare to soil-slurry results. Groundwater test experiment is performed in multiple pairs of 140 ml sealed batch reactors (I liter reactors for SVOCs, Pesticides or PAHs, if performed). Groundwater is introduced into each reactor, leaving enough headspace for predetermined reagent volumes to be injected. The reactors are sealed with aluminum caps (screw top caps for 1-liter reactors) fitted with Teflon- lined rubber septa to facilitate reagent injections. Each pair receives a different volume of the reagent to test low, medium and high dosages. One reactor of each pair serves as the "treatment reactor" while the other serves as the "monitoring reactor". Both reactors of each pair will receive identical reagent doses. Treatment reactor is not opened or sampled until the end of the experiment. Monitoring reactor is used to monitor the extent of the oxidation reaction of the pair, by periodically extracting small samples for oxidizer analysis. Distilled water is used to equalize the total volume of reagent used between multiple reactors pairs. The reactor pair which receives only distilled water will serve as control. Soil-Slurry Test Experimental Setup ISOTEC soil-slurry test is designed to simulate the condition of saturatedlvadose zones at the site. Because contaminants tend to bind to aquifer matrix in the subsurface, they are not as readily degradable as the dissolved phase contaminants in groundwater. Furthermore, soil organic matter tends to impart a scavenging effect on the oxidizing agent leading to competition. However, an increase in the amount of reagent supply into the treated samples overcomes the solid binding force and achieves significant contaminant destruction. Soil-slurry test experiment is performed in multiple pairs of 120 ml sealed batch reactors (reactors). Soil-slurry mix is prepared from a two to one ratio by weight (2:1 w/w) of soil and groundwater. Soil-slurry is introduced into each reactor, leaving enough headspace for predetermined reagent volumes to be injected. The reactors are sealed with screw-top caps fitted with Teflon-lined rubber septa to facilitate reagent injections. Each pair receives a different volume of the reagent to test low, medium and high dosages. Similar to groundwater test, one reactor of each pair serves as the "treatment reactor" while the other serves as the "monitoring reactor". Both reactors of each pair will receive identical reagent doses. Treatment reactor is not opened or sampled until the end of the experiment. Monitoring reactor is used to monitor the extent of the oxidation reaction of the pair, by periodically extracting small samples for oxidizer analysis. Distilled water is used to equalize the total volume of reagent used between multiple reactors pairs. The reactor pair which receives only distilled water will serve as control. E...� IN-Stell; OMI)ATIVE TEcHNOLOGIES, INC.