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z <br /> "rrnoy Vacant Lot.NW comer or Al nhur Drive R \,Ipwo Road.'I'.:ev.CA 11 11.00 <br /> • Soil Borings. Four proposed soil borings will be drilled at the <br /> general locations shown on Figure 1. Groundwater is anticipated to <br /> occur in the site vicinity at a depth of 15 to 25 feet bgs. Therefore, if <br /> groundwater is encountered in the soil borings a groundwater "grab" <br /> sample will be collected. Upon completion of soil and possible <br /> groundwater sampling, the borings will be backfilled by Korbmacher <br /> with cement grout. <br /> • Soil Analysis. Selected soil samples will be submitted to a California <br /> State-certified laboratory and analyzed. Analyses for the presence of <br /> total petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, <br /> ethylbenzene, and total xylenes (BTEX compounds), and fuel <br /> oxygenates tert-butly alcohol (TBA), methyl-tert butyl ether (MtBE), <br /> di-isopropyl ether (DIPE), ethyl-tert-butyl ether (EtBE), tert-amyl <br /> methyl ether (TAME), methanol, ethanol, 1-2, dicloroethane (1-2 <br /> DCA) and Ethylene dibromide will be performed. <br /> • Groundwater Sampling and Analysis. If groundwater is <br /> encountered while drilling the soil borings, a groundwater "grab" <br /> sample will be collected. Groundwater is anticipated at approximately <br /> 15 to 25 feet bgs. Groundwater samples will be submitted to a <br /> California State-certified laboratory and analyzed for the presence of <br /> TPHg, BTEX compounds, and fuel oxygenates (TBA, MtBE, DIPE, <br /> EtBE, TAME, methanol, ethanol, 1-2 DCA and ethylene dibromide). <br /> • Report. A report will be prepared after completion of necessary <br /> fieldwork and upon receipt of laboratory analytical results. The <br /> report will include boring logs, site map, soil analytical results, chain- <br /> of-custody documentation, and findings (by Korbmacher). <br /> Field and laboratory procedures are presented as Attachment A. <br /> SCHEDULE <br /> SECOR is prepared to initiate fieldwork November 14, 2000. A report documenting the <br /> findings of the investigation is anticipated to be submitted approximately 2 to 4 weeks <br /> after completion of all fieldwork and receipt of all laboratory analytical data. <br /> Tracy Vacant Lot'Wkpin.doc <br />