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FMS #24 Site Investigation Report <br />California Arrnv National Guard <br />Table 3-2. Results of Versar Analyses of Groundwater Samples from <br />the Diesel and Gasoline UST Removal at FMS #24, Stockton, and <br />Water Quality Goal Criteria Comparison <br />Sample Sample Depth <br />Concentration <br />Water Quality Goal <br />Number (feet bgs) Analyte <br />Reported in mglL (µg/l-) <br />(µglL) <br />B30 45 TPHG <br />74 (74,000) <br />5 <br />B31 45 TPHG <br />2.4 (2,400) <br />(Taste and Odor Threshold) <br />TPHD <br />1.4 (1,400) <br />100 <br />TPHD <br /><0.1 (ND) <br />(Taste and Odor Threshold) <br />Benzene <br />3.9 (3,900) <br />1 <br />Benzene <br />0.053 (53) <br />(Primary MCL) <br />Toluene <br />6(6,000) <br />150 <br />Toluene <br />0.38 (380) <br />(Primary MCL) <br />Ethylbenzene <br />0.92 (920) <br />300 <br />Ethylbenzene <br />0.33 (330) <br />(Primary MCL) <br />Xylenes <br />4.9 (4,900) <br />1,750 <br />Xylenes <br />1.55 (1,550) <br />(Primary MCL) <br />TAME <br /><0.002 (ND) <br />— <br />TBA <br /><0.01 (ND) <br />— <br />DIPE <br /><0.002 (ND) <br />— <br />EtBE <br /><0.002 (ND) <br />— <br />• <br />MtBE <br /><0.002 (ND) <br />— <br />Lead <br />NS <br />15 <br />(Primary MCL) <br />B31 45 TPHG <br />2.4 (2,400) <br />5 <br />(Taste and Odor Threshold) <br />• <br />TPHD <br /><0.1 (ND) <br />100 <br />(Taste and Odor Threshold) <br />Benzene <br />0.053 (53) <br />1 <br />(Primary MCL) <br />Toluene <br />0.38 (380) <br />150 <br />(Primary MCL) <br />Ethylbenzene <br />0.33 (330) <br />300 <br />(Primary MCL) <br />Xylenes <br />1.55 (1,550) <br />1,750 <br />(Primary MCL) <br />TAME <br /><0.002 (ND) <br />— <br />TBA <br /><0.02 (ND) <br />— <br />DIPE <br /><0.002 (ND) <br />— <br />EtBE <br /><0.002 (ND) <br />— <br />MtBE <br /><0.001 (ND) <br />— <br />Lead <br /><0.05 (ND) <br />— <br />B32 45 TPHG <br />8.5 (8,500) <br />5 <br />(Taste and Odor Threshold) <br />TPHD <br /><0.5 (ND) <br />100 <br />(Taste and Odor Threshold) <br />Benzene <br />24 (24,000) <br />1 <br />(Primary MCL) <br />Toluene <br />0.38(380) <br />150 <br />(Primary MCL) <br />Ethylbenzene <br />2.3 (2,300) <br />300 <br />(Primary MCL) <br />• <br />K.\Wprocess\00251\CA ARNG\Stmktm FMS 24 SI\SlDraft—dev.doc B-4 December 2007 <br />