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18 August 2000 AGE-NC Project No . 00 - 0753 Page 3 of 5 • Fuel oxygenates including methyl tertiary-butyl ether (MTBE), tertiary-butyl alcohol (TBA), di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE) and tertiary-amyl methyl ether (TAME) by EPA Method 8260 . Laboratory reports for soil analyses, testing methods, laboratory quality assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be presented in a report with findings and recommendations . 3 . 3 . GRAB GROUNDWATER SAMPLE COLLECTION AND ANALYSIS Grab ground water samples will be collected during the boring process using a Geoprobe water sampling assembly. Samples will be collected into 40-m1 volatile organic analysis (VOA) vials and into 14iter amber bottles as appropriate for the required analyses . Ground water sample collection procedures are presented in Section 4 .3 . Ground water samples will be analyzed by a DHS -certified laboratory for: • TPH-g and TPH-d by EPA Method, 8015M/3550 ; • BTEX and MTBE by EPA Method 8020 and • Fuel oxygenates including MTBE , TBA, DIPE , ETBE , and TAME by EPA method 8260 . Laboratory reports for ground water analyses, testing methods, laboratory quality assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be presented in a report with the findings and recommendations . 3 . 4 . REPORT PREPARATION Upon completion of field work and receipt of final laboratory analysis, a report will be prepared presenting the findings of the investigation. The report will include a description of the work performed and results of the sampling and analysis . Conclusions, applicable recommendations, maps and cross- sections will be included in the report. The report will be in a format acceptable to the PHS -EHD and the CVRWQCB , and will be reviewed and signed by a California Registered Geologist. Advanced Geo Environmental, Inc.