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i f • <br /> CAMBRIA <br /> Table 1 Additional Groundwater Analytical Data,Shell-branded Service Station,2575 Country Club Boulevard,Stockton,California <br /> Sample Date Ethanol TBA DIPE ETBE. TAME Methanol EDB Volatile Organics by EPA 8260 <br /> (P91-) (µ8f-) (lag(-) (llg/L) (µgn-) (AgfL) WIL) (Kg/E) <br /> Not detected except for a-Butylbenzene 360 sec Butylbenzene 100, <br /> MW-8 02-Sep-97 125 000 <5 000 <100 <100 <100 <10,000 NA Ethylbenzene 2100 Isoproplybenzene 210 Naphthalene 280 n- <br /> Propylbenzene 790 Toluene 720 1,2 4-Trnnethylbenzene 5100 <br /> 1,3,5 Tnmethylbeazene 1500 and Total Xylenes 9400 ppb <br /> MW 8 02-Dec 97 <31 000 <6 200 <120 <120 <120 <10 000 NA <br /> MW-8 29 Jan-98 <170 000 <33 000 <670 <670 <670 19,000 NA <br /> MW-8 23 Apr 98 <25000 <5,000 <100 <100 1,100 53 000 NA <br /> MW-8 29-Jul-98 <16,600 <3 330 <67 <67 <67 14,000 NA <br /> MW-8 06-Oct-98 <25,000 <5 000 <100 <100 <100 18 000 NA <br /> MW 8 27-Jan 99 <1 000 <200 <40 <4 0 <4 0 <4 000 NA <br /> MW-8 15-Apr 99 <300 000 <20 000 <200 <200 214 7 100 NA <br /> MW-8 27 Jul-99 <50 000 <10 000 <100 <100 154 138 000 NA <br /> MW 8 28 Oct-99 <2 500 <500 <5 00 <5 00 <5 00 17 600 NA <br /> MW 8 01-Jan-00 <66 700 <13 300 <133 <133 <133 28,900 NA <br /> MW 8 18-Apr-00 120,000 2 620 <40 0 <40 0 4710 <5 000 NA <br /> MW 8 28-Jul-00 NA NA <100 <100 <100 <20 000 <100 DIPE TAME,and EDS were analyzed outside of EPA <br /> recommended hold time <br /> MW-8 19-Get-00 NA <100 <2 00 <2 00 <2 00 <10,000 NA DIPE,TAME,TBA,and ETBE were analyzed outside of EPA <br /> recommended hold tune <br /> MW 8 11-Jan 01 NA <200 <2 00 <2 00 <2 00 <5 000 NA <br /> MW-8 12 Apr-01 NA <200 <2 00 <2 00 <2 00 13,500 NA <br /> MW 8 30-Oct-01 NA <50 <20 <20 <20 <1000 NA <br /> MW 8 09 Jan 02 NA <50 <20 <2 0 <2 0 <1,000 NA <br /> MW 9 02-Dec-97 <500 <100 <2 0 <2 0 <20 <1000 NA <br /> MW-9 29-Jan 98 <500 <100 <2 0 <2 0 <20 <1 000 NA <br /> MW 9 23-Apr-98 <500 <100 <2 0 <2 0 <20 <1000 NA <br /> MW 9 29 Jul-98 <500 <100 <20 <2 0 <20 <1000 NA <br /> MW 9 06-Oct-98 <500 <100 <20 <2 0 <20 <1 000 NA <br /> MW-9 27-Jan 99 NA NA NA NA NA <1 000 NA <br /> MW 9 15-Apr-99 <3 000 <200 <2 00 <2 00 <2 00 <1 000 NA <br /> MW-9 27 Jul 99 NA NA NA NA NA <1000 NA <br /> MW-9 28-Oct-99 NA NA NA NA NA <1000 NA <br /> MW 10 02-Dec 97 <500 <100 <20 <20 <2 0 <1 000 NA <br /> MW-10 29 Jan-98 <500 <100 <20 <20 <2 0 <1000 NA <br /> MW-10 23 Apr 98 <500 <100 <20 <20 <20 <1000 NA <br /> MW-10 29-Jul-98 <500 <100 <2 0 <20 <2 0 <1,000 NA <br /> MW-10 06.Oct98 <500 <t00 <20 <20 <20 <1,000 NA <br /> MW 10 27-Jan 99 NA NA NA NA NA <2 000 NA <br /> MW-10 15-Apr-99 <3,000 <200 <2 00 <2 00 <2 00 <1000 NA <br /> 0783 Page 3 0f 9 <br />