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TABLE 5 ANALYTICAL RESULTS OF GROUND WATER SAMPLES - SITE INVESTIGATION RAINWATER CAR WASH 420 West Yosemite Avenue, Manteca, Callfomla (µdl) EPA 8015 EPA 8020/82608 EPA 8260B Sample Sample Modified ]p Date TPH-g TPH-d Benzene Toluene Ethyl Xylenes MTBE MTBE DIPE TAME ETBE TBA EDB 1,2-DCA TCE PCE 11-11-02 ND150 110 ND10 5 ND<O 5 ND<O 5 ND<O 5 NA ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<20 ND<O 5 ND<0 5 ND<O 5 069 03-28-03 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<1 ND<1 ND<1 ND<1 ND<1 ND<l ND<10 ND<O 5 ND<O 5 ND<l ND<1 06-06-03 ND<50 NA ND<0 5 NI3<0 5 ND<O 5 ND<O 6 NA ND<1 ND<1 ND<1 ND<1 ND<10 ND<O 5 ND<0 5 ND<1 ND<l 1148-03 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA ND<1 ND<l ND<l ND<l ND<10 ND<O 5 ND<O 5 ND<l ND<l MW- 04-01-04 ND<50 NA ND<O 5 ND<0 5 ND<0 5 ND<O 6 NA ND<1 ND<1 ND<1 ND 13E 06-22-04 ND<50 NA ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<20 ND<O 5 ND<O 5 ND<O 5 21 10-05-05 ND<50 NA ND<O 5 ND<O 5 ND<0 5 ND<O 6 NA ND<l ND<1 ND<l Nl}<1 ND<10 ND<O 5 ND<O 5 ND<l ND<1 12-30-04 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA ND<l ND<l ND<l ND<l ND<10 ND<O 5 ND<O 5 ND<l 2.3 04-01-05 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA NIXI ND<1 ND<l ND<l ND<10 ND<O 5 ND<O 5 ND<l 57 07-05-05 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<0 6 NA ND<1 ND<1 ND<l ND<1 ND<10 ND<O 5 ND<O 5 ND<l 94 11-11-02 ND<50 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 NA ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<20 ND<O 5 ND<O 5 ND<O 5 ND<O 5 03-28-03 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<l ND<1 ND<1 ND<l ND<1 ND<10 ND<0 5 ND<O 5 ND<l ND 06-06-03 ND<50 NA ND-0 5 ND<O 5 ND<O 5 ND<O 6 NA ND<1 ND<1 ND<l ND<1 ND<10 ND<O 5 ND<O 5 ND<1 NIX1 11-18-03 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA ND<1 ND<1 ND<1 ND<1 ND<10 ND<O 5 ND<O 5 ND<1 ND<1 MW- 04-01-04 ND<50 NA ND<O 5 ND<O 5 ND<0 5 ND<O 6 NA ND<1 ND<1 ND<1 ND<1 ND<10 ND<0 5 ND<O 5 ND<1 ND<1 13F 06-22-04 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 1 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<20 ND<O 5 ND<O 5 ND<O 5 1.3 10-05-04 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA ND<1 ND<1 ND<l ND<1 ND<10 ND<O 5 ND<O 5 24 ND<1 12-30-04 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<0 5 NA ND<l ND<1 ND<1 ND<1 ND<10 ND<0 5 ND<0 5 ND<1 NLKl 04-01-05 ND<50 NA ND<O 5 ND<O 5 ND<O 5 ND<O 6 NA ND<l ND<1 ND<1 ND<1 ND<10 ND<O 5 ND<O 5 ND<t 3 2 < <0.61 NA I ND<1 I ND Notes - pgll micrograms per liter PCE tetrachloroethene ' significant unmodified or weakly modified gasoline NAI- not analyzed = one to a few isolated peaks,large tetrachloroethene peak ' gasoline range compounds are significant,no recognizable patter TPH-g total petroleum hydrocarbons quantified as gasoline TPH-d total petroleum hydrocarbons quantified as diesel MTBE methyl tertiary-butyl ether DIPE di-isopropyl ether TAME tertiary-amyl methyl ether ETBE ethyl tertiary-butyl ether TBA tartiary-butyl alcohol EDB ethylene dibromide 1,2-DCA 1,2-dichloroethane TCE trichloroethene Advanced GeoEnvtronmental,Inc