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13 May 2010 AGE-NC Project No. 07- 1529 Page 9 of 11 Utilizing a truck-mounted compact sonic drill rig equipped with 1 .25-inch diameter hollow push rods, AGE proposes to advance three soil borings to inject a calculated volume ofRegenOxTM slurry into the ground water slightly up gradient of well VEW-2 at a range of depths between 45 feet bsg and 55 feet bsg Three injection points located up-gradient of well MW-9 are proposed within private property boundaries and will be installed between five and ten from the well due to physical restrictions (Figure 3) . Three injection points are also proposed within private property boundaries near well VEW-2 and will be installed between five and ten from the well, due to physical restrictions (Figure 3). Before application of the RegenOxTM slurry in the areas near wells MW-9 and VEW-2, each batch of RegenOxrm slurry will be mixed in accordance with manufacturer' s recommendations and specifications (Appendix B). Each 30-pound bucket of RegenOxTM Part A and Part B will be mixed with a specified volume of water in a 55-gallon drum. Mixture composition and media ratio will be determined in consultation with Regenesis prior to mobilization and application. Typical mixtures range between 3 to 5% Part A and 3 to 5% Part B to water, depending on the conductivity of the sub- surface formation. It is expected the injections in the VEW-2 area will have a higher percentage of solids due to the surrounding silty formation. Tap water will be used for the RegenOxTM slurry and will be metered into the holding tank using a Sensus PMM® water meter. Once the RegenOxTM media is added to the measured amount of water, a portable drill fitted with a paddle mixer will be used to mix the RegenOxTM slurry into the desired consistency. A Geoprobe(l pressure activated injection tip will be attached to the push rods and advanced to the target depth. Upon reaching the target depth, the RegenOxTM slurry will be prepared. AGeoprobeg GS-2000 grout injection system (Appendix B) will be connected to the top of the uppermost push rod. Batches of the RegenOxTM slurry will be placed in the Geoprobe® GS-2000 grout injection system hopper and injected into ground water at targeted depths. The push rods equipped with the Geoprobe® pressure activated injection tip will be advanced to targeted deepest depth at each location in a bottom-up injection strategy. The RegenOxTM slurry will be injected at a relatively slow rate estimated between two to five gallons per minute (gpm). The rate of injection will be adjusted as field conditions dictate. After injection of a specified volume of RegenOxTM slurry at each targeted depth (near well MW-9 : between 85 feet bsg to 105 feet bsg and near well VEW-2: between 45 feet bsg and 55 feet bsg), the probe assembly will be retracted to the next targeted level in a bottom-up injection strategy to allow for ground water displacement. The injection time of the RegenOxTM slurry at each level will be calculated prior to mobilization, depend on the injection back-pressure observed in the field and be adjusted based upon field conditions. Advanced GeoEnvironmentaL Inc.