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31-0329 <br /> Table 1 <br /> Summary of Results of Ground Nater Sampling <br /> Chevron Service Station No 9-6465 <br /> 5608 North Pershing Avenue, Stockton, California <br /> Concentrations in parts per billion (ppb) <br /> maasaazazazzsaazaazazrazrzzamazzazrzzossa:mmamsasxsasaaaaaaaxaaeaxexxar_xaxxaaxaaaaesea=_aeszcxxxxaaaxaazzzaxxzzaaaazzasasa <br /> WELL DATE OF CASING DEPTH GROUND TPH-G 8 T E X 1,2-DCA LAB <br /> ID SAMPLING/ ELEVATION TO WATER <br /> MONITORING WATER ELEVATION <br /> zamaaaazammzmassa:asmmmsmmmammmmmmmmzaasmmmammamamasmsamamaaaaazsomas:aazazzsorsa:aazamass::aaxzaazasezaazezrzaaazazazzaasa <br /> TB 03/23/89 NA NA NA ND<500 ND<0 5 ND<0.5 ND<0,5 ND<Q,5 --- SAL <br /> TB 07/19/89 NA NA NA ND<500 ND<O 5 ND<0 5 04 5 ND<0.5 SAL <br /> TO 10/05/89 NA NA NA ND<250 ND<0.5 ND<O 5 ND<0 5 ND<0.5 --- PACE <br /> T8 05/09/90 NA NA NA ND<50 ND<0.3 ND<O 3 ND<O 3 ND4.6 --- GTEL <br /> TO 07/04/90 NA NA NA ND<50 ND<0.3 ND<0.3 ND<O 3 ND<0.6 --- GTEL <br /> TB 08/17/90 NA NA NA ND<50 ND<0.3 0.3 ND<O 3 1 --- GTEL <br /> 78 10/22/90 NA NA NA ND<50 ND<0.3 ND<0.3 ND<0.3 ND<0.6 --- GTEL <br /> TO 01/19/91 NA NA NA ND<50 ND<0.5 ND<0.5 ND<0.5 ND<O 5 --- SAL <br /> TB 07/21/91 NA NA NA ND<50 ND<0.5 ND<0.5 0<0.5 ND<0.5 --- SAL <br /> TB 10/17/91 NA NA NA ND<50 ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- SAL <br /> TO 01/09/92 NA NA NA ND<50 ND<0.5 ND-c0.5 ND<0.5 ND<0.5 --- SAL <br /> TB 03/19/92 NA NA NA ND<50 ND<0.5 ND<0.5 ND<O 5 ND<O 5 --- SAL <br /> TO 07/01/92 NA NA NAA ND<50 ND<O 5 ND<0.5 ND<O 5 ND0.5 --- SAL <br /> EXPLANATION OF ABBREVIATIONS: <br /> TPH-G :Total Petroleum Hydrocarbons as Gasoline --- -Not Analyzed/Not Measured <br /> (EPA method 8015 modified) NA :Not Applicable/Not Available <br /> B :Benzene (EPA method 8020 or 8240) NO Not Detected <br /> T :Toluene (EPA method 8020 or 8240) TB :Trip Blank <br /> E .Ethylbenzw* (EPA method 8020 or 8240) D .Duplicate <br /> X :Xylenes (EPA method 8020 or 8240) e & C .Brown & Caldwell Labs <br /> 1,2-DCA :1,2-Dichloroethane CCAS CCAS labs <br /> SAL Superior Analytical Labs <br /> GTEL .GTEL LABS <br /> PACE •PACE Labs <br /> w ,Not sampled due to insufficient water in welL <br /> •* :Sampled separately to confirm results. <br /> 0 :Dry well <br /> Note. Top of casing and ground water elevations are expressed as feet above mean see level (NGVD -1929). <br /> ------ ------------------------------------------------------------------------------------------------------------------------------- <br />