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FMS #24 Site Investigation Report <br />California Army National Guard <br />Table 3-2. (Continued) <br />Sample <br />Sample Depth <br />Concentration <br />Water Quality Goal <br />Number <br />(feet bgs) Analyte <br />Reported in mg/L (gg/L) <br />(gg/L) <br />B32 <br />Xylenes <br />3.72 (3,720) <br />1,750 <br />(cont'd) <br />= Field Maintenance Shop <br />TBA = <br />(Primary MCL) <br />MCL <br />TAME <br /><0.002 <br />— <br />mg/L <br />TBA <br /><0.01 <br />— <br />MtBE <br />DIPE <br /><0.002 <br />— <br />ND <br />EtBE <br /><0.002 <br />— <br />Notes: <br />MtBE <br /><0.001 <br />— <br />Bold indicates <br />Lead <br /><0.05 <br />— <br />bgs <br />= below ground surface <br />NS = <br />not sampled <br />DIPE <br />= di -isopropyl ether <br />PRG = <br />Preliminary Remedial Goal <br />EtBE <br />= ethyl tert-butyl ether <br />TAME = <br />tert-amyl methyl ether <br />FMS <br />= Field Maintenance Shop <br />TBA = <br />tert-butyl alcohol <br />MCL <br />= maximum contaminant level <br />TPHD = <br />total petroleum hydrocarbons as diesel <br />mg/L <br />= milligrams per liter <br />TPHG = <br />total petroleum hydrocarbons as gasoline <br />MtBE <br />= methyl tert-butyl ether <br />UST = <br />underground storage tank <br />ND <br />= non -detect <br />gg/L = <br />micrograms per liter <br />Notes: <br />Bold indicates <br />contaminant concentration exceeds listed Water Quality Goal. <br />Reported concentrations have been converted from mg/L to <br />gg/L for comparison. <br />Source: <br />Versar, Inc., 2004 <br />Regional Water Quality Control Board, 2003 <br />B-5 December 2007 <br />