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TABLE 4 <br /> GRAB GROUNDWATER ANALYTICAL RESULTS <br /> WEST CLAY PROPERTY <br /> 639 West Clay Street, Stockton, California <br /> Sample ID Depth Date TPH-g TPH-d Benzene Toluene Ethyl- Xylenes MTBE DIPE ETBE TAME TBA 1,2-DCA EDB Naph- <br /> (ft bsg) benzene thalene <br /> CPT22-96-100 96-100 02/27/23 <50 95 10.2 <0.5 10.5 <0.5 10.5 <0.5 <0.5 <0.5 <5.0 0.47 <0.04 10.3 <br /> CPT22-117-120 117-120 02/27/23 <50 130 <0.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <5.0 0.44 <0.04 10.3 <br /> SFBRWCB ESL: 100 100 0.42 40 30 20 5 12 0.5 0.05 0.17 <br /> Notes <br /> ug/L:microgram per liter 1,2-DCA: 1,2-dichloroethane <br /> TPH-g:total petroleum hydrocarbons quantified as gasoline EDB:1,2-dibromoethane <br /> MTBE:methyl tertiary butyl ether PCE:Tetrachloroethene <br /> DIPE:di-isopropyl ether TCE:Trichloroethene <br /> ETBE:Ethyl tertiary-butyl ether <:no reported detection above laboratory reporting limit <br /> TAME:Tertiary-amyl methyl ether -Highlighted cells represent concentrations above SFBRWCB Tier 1 screening levels. <br /> TBA:tertiary butyl alcohol <br />