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20 October 2011 <br /> AGE-NC Project No. 96-0236 <br /> Page 5 of 7 <br /> The following is a breakdown of the scope of work to be performed before and during the <br /> pilot test: <br /> • Procurement of the necessary materials to perform the injection, including media; <br /> • Performance of four weekly injection events utilizing well DPE-1/DPE-2 as a <br /> dedicated injection point; <br /> • Performance of progress monitoring and sampling; and <br /> • Preparation of a report on the results of the ISCO feasibility study. <br /> 4.1. ISCO PILOT TEST <br /> AGE will conduct four weekly ISCO applications utilizing well DPE-1/DPE-2 and a 5% <br /> solution of hydrogen peroxide (with ferrous sulfate) and an optimum pH (3-5) adjuster, <br /> using muriatic or sulfuric acid (1% acid). Baseline/background sampling will be performed <br /> using wells DPE-1/DPE-2, MW-1A, MW-113, MW-2 and MW-4 prior to the first injection <br /> application; progress/confirmation sampling will be performed utilizing the identical set of <br /> wells one week following the final week of injection. Field parameters and laboratory <br /> samples will be collected and analyzed as described below: <br /> Field Parameters: <br /> • Depth to water will be measured in wells DPE-1/DPE-2, MW-1A, MW-113, MW-2 <br /> and MW-4; and <br /> • Prior to each purge volume, temperature, pH, TDS, oxygen reduction potential <br /> (ORP), salinity, turbidity, and dissolved oxygen (DO) will be recorded at both <br /> monitoring wells. <br /> Laboratory Testing: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g)by EPA method 8015 <br /> modified; <br /> • Benzene, toluene, ethylbenzene and xylenes (BTEX) by EPA method 8260B; <br /> • Volatile organic compounds by EPA method 82608; <br /> • Inorganic ions bromate, bromide, chloride, nitrate, nitrate as nitrogen, nitrate as <br /> NO3 , and sulfate by EPA method E300.1; <br /> .J Jvaneed GeaEnvirnn mental.Inc. <br />