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r <br /> H Dual Phase Extraction Pilot Test Work Plan <br /> Former Beneto Facility, 749 East Charter Way, Stockton, California <br /> Page 5 <br /> Analysis Abbreviation Designation USEPA Method No , <br /> Total Petroleum TPH Aromatic <br /> t_ <br /> Hydrocarbons as Gasoline g <br /> Hydrocarbon <br /> Benzene <br /> Toluene Aromatic <br /> . I Eth (benzene BTEX Volatile <br /> Organics <br /> Xylenes Total 8260B <br /> . <br /> Tertiary Butyl Alcohol BA, Methyl TertiaryButyl Ether TBE <br /> IP <br /> Five FuelDi-isopropyl Ether E Oxygenate <br /> s <br /> Ethyl TertiaryButyl Ether <br /> Tertiary Amyl Methyl Ether TAME <br /> At the conclusion of the test extracted groundwater will be properly disposed to the sanitary <br /> sewer if possible or at an appropriate facility. <br /> OBJECTIVES AND REPORTING <br /> The main objectives of this DPE test are to verify soil vapor extraction and groundwater ROIs, <br /> and verify groundwater yield and hydraulic influence during the DPE extraction test. Apex will <br /> calculate dissolved vapor phase mass extraction rates from monitoring wells MWA and MW-5 <br /> (and possibly MW-4) . The DPE pilot test will aid in the design of a future remediation system, <br /> and extract hydrocarbons from the subsurface. <br /> Once the analytical data, groundwater, and SVE flow data are reviewed, a results report will be <br /> r1 prepared documenting the results of the DPE pilot test. Based on the results of the DPE test, a <br /> f DPE system will be designed and installed at the subject site if warranted. <br /> i1. <br /> - i <br /> J <br /> IJ <br />