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I + 1 <br /> 02 March 1999 <br /> AGE-NC Project No 98-0448 <br /> Page 5 of 10 <br /> • SVE well located approximately 5 to 10 feet southwest of MW-2, <br /> • Ground water monitoring well located approximately 50 to 60 feet west of MW-6 _ <br /> I I <br /> The proposed ground water extraction well shall be advanced approximately 45 feet bsg, the two <br /> SVE wells shall be advanced approximately 35 feet bsg, the ground water monitoring well shall be <br /> advanced approximately 35 feet bsg However, total depths of wells may vary according to <br /> hydrogeologic conditions during drilling activities Field procedures for advancement of borings and <br /> well installations are presented in Sections 4 2 , 4 3 and 4 6 <br /> Selected soil samples will be analyzed by a State of California Department of Health Services <br /> (DHS)-certified laboratory for the following constituents <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified/5030, <br /> • Volatile aromatics (benzene, toluene, ethyl benzene and xylenes BTEX) and methyl tert- <br /> • butyl ether (MTBE) in accordance with EPA Method 8020, and <br /> Fuel oxygenates including MTBE,tertiary-butyl alcohol (TBA), di-isopropyl ether (DIPE), <br /> ethyl tertiary-butyl ether (ETRE) and tertiary-amyl methyl ether (TAME) by EPA Method <br /> 8260 <br /> Laboratory reports for soil analysis, testing methods, laboratory quality assurance/quality control <br /> (QA/QC) reports, and sample chain of custody documentation will be presented in a report with <br /> findings and recommendations <br /> Selected soil samples will be analyzed by a microbiological laboratory fdr microbial enumeration <br /> and physiochemical characteristics Laboratory reports for soil analysis and sample chain of custody <br /> documentation will be presented in a report with findings and recommendations <br /> 33 PILOT STUDY <br /> Following well installations, a pilot study is proposed at the site to evaluate several alternatives for <br /> soil and ground water remediation, the proposed pilot study should consist'of an eight-hour ground <br /> water pump (drawdown) pilot test, a 48-hour in-situ air sparge (IAS) pilot test and an eight-hour <br /> SVE pilot test <br /> The proposed drawdown pilot test will be designed to obtain general aquifer characteristics such <br /> Advanced GeoEnv;ronmental,Inc <br />