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x •14 August 2000 <br /> AGE-NC Project No. 98-0492- <br /> Page <br /> 8-0492Page 5 of 8 <br /> bsg or until the field observations (odor and staining), Od field screening using an organic vapor <br /> meter(OVM) indicate that petroleum hydrocarbon vapo is not present in the soil samples screened <br /> from two consecutive.five-foot intervals. <br /> Soil samples will be collected every five feet beginnin $ at 5 feet bsg'extending to the total boring <br /> depths. Field procedures for advancem opt of borings and collection of soil samples are presented in . <br /> Section 4.L1. � <br /> Selected soil samples from each probe-boring will l e submitted for laboratory analysis with <br /> concurrence of the PHS-EHD. The selected soil sampl s will be analyzed by a'State of.California <br /> Department of Health,Services (DHS)-certified laboratory for the following constituents: <br /> • TPH-g and TPH-d by EPA Methods 5030/3550,8015 Modified; <br /> • BTEX and MTBE by EPA Method 8020; and <br /> • Fuel oxygenates including MTBE, tertiary-butyl!alcohol (TBA), di-isopropyl ether(DIPE), <br /> ethyl tertiary-butyl ether (ETBE) and tertiary-ar>lyl methyl.ether (TAME) by EPA Method- <br /> 8260M. <br /> Laboratory reports for soil analyses, testing methods, l4boratory 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 /> 3.3: GRAB GROUND WATER SAMPLE COLLECTION AND-ANALYSTS <br /> Grab ground water samples will be collected from�ea ch probe boring using a Geoprobe water <br /> sampling assembly. Samples will be collected into 40�ml volatile organic analysis (VOA) vials <br /> containing 0.5-m1 of hydrochloric acid as sample preserv1ative and into 1-liter amber bottles without <br /> a sample preservative. Ground water sample collection 1procedures are presented in Section 4.1.2. <br /> Ground water samples will be analyzed by a-DHS-certified'laboratory for: " <br /> • TPH-g and T H-d by EPA Methods,5030/35508015 Modified; <br /> • BTEX MTBE by EPA Method 8020;. Ili . <br /> • M E, TBA, DIPE,ETBE and TAME by EPA Method 8260M.. <br /> ., z �cR <br /> - Advanced GeoEnviron mental,Inc. <br />