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TABLE 1 <br /> Analytical Results Summary-Soil Vapor <br /> 2295 and 2325 S. MacArthur Drive <br /> Tracy,California <br /> VOCs by EPA TO-15 Modified ASTM D- <br /> Depth Below (µg/m3) 1946 <br /> Sample GroundLeak Compound <br /> Acetone Benzene Toluene Cumene <br /> Location Date Surface(feet) Naphthalene Helium (%) <br /> SV-1 2/4/2013 4.5-5.0 <28 190 18 460 < 25 <0.12 <br /> SV-2 2/4/2013 4.5-5.0 32 160 24 650 <25 <0.12 <br /> SV-3 2/4/2013 4.5-5.0 < 28 260 7.2 510 <25 <0.12 <br /> ESL- - _ 16,000,000 42 160,000 --- 36 - <br /> Residential <br /> CHHSL- --_ 85 320,000 --- 93 - <br /> Residential <br /> Notes: <br /> No other TO-15 compounds were detected;see laboratory data sheets. <br /> pg/m3 micrograms per cubic meter <br /> Cumene Isopropylbenzene <br /> CHHSL California Human Health Screening Level(CHHSL),Office of Environmental Health Hazard Assessment(OEHHA), <br /> Table 2;Soil-Gas Screening Values,9/23/10. <br /> ESL RWQCB Environmental Screening Level,Table E,Feb.2013 <br /> P:\PROJECTS\Valley Oak Partners\Tracy(117-7059009.01)\Phase 11 ESA\Data Tables.xlsx Page 1 of 1 <br />