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i • i <br /> CAMBRIA <br /> Table 1 Additional Groundwater Analytical Data,Shell-branded Service Station 2575 Country Club Boulevard,Stockton,California <br /> Sample Date Ethanol TBA DIVE ETBE TAME Methanol EDB Volatile Organics by EPA 8260 <br /> (NI'IW (Pgf ) (µs/ ) (µP/L) (µS/-) (µ/-) (P€/L) (µP/L) <br /> MW-4 27 Jul-99 <1000 <200 <2 00 <2 00 <2 00 <1000 NA <br /> MW-4 28-Oct-99 <3000 <200 <2 00 <2 00 <2 00 <1000 NA <br /> MW-5 02 Sep-97 <3120000 <625000 <12500 <12500 <12500 600000 NA Not detected except for Benzene 13000 Ppb <br /> MW 5 02 Dec-97 <2500000 <500000 <10000 <10000 <10000 540000 NA <br /> MW 5 29 Jan-98 <2500000 <500000 40000 <10000 <10000 470000 NA <br /> MW-5 23 Apr 98 <2500 <500 11 <10 2600 76000 NA <br /> MW-5 29 Jul-98 <2500000 <500000 <10000 <10000 <10000 130000 NA <br /> MW-5 06-Oct-98 <1250000 <250000 <5000 <5000 <5000 89000 NA <br /> MW 5 27 Jan 99 <2500000 <500000 <10000 <10000 <10000 290000 NA <br /> MW 5 15-Apr-99 4500000 <500000 <5000 <5000 5080 200000 NA <br /> MW 5 27-Jul 99 <1250000 <250000 <2500 <2500 5100 <20000 NA <br /> MW 5 28 Oct 99 <1000000 <200000 <2000 <2000 3490 <10000 NA <br /> MW 5 28-Jan-00 <625000 425000 <1250 4250 3020 <10000 NA <br /> MW-5 18 Apr-00 <250000 28200 600 <500 920 <20000 NA <br /> MW-5 28 Jul-00 NA NA <10000 <10000 <10000 <20000 <10000 DIPE TAME and EDB were analyzed outside of EPA <br /> recommended hold time <br /> MW-5 19-Oct-00 NA <100000 <2000 <2000 <2000 <20000 NA DIPE TAME TBA and ETRE were analyzed outside of EPA <br /> recommended hold time <br /> MW 5(DUP) 29 Jan-98 <2500000 <500000 <10000 <10000 <10000 300000 NA <br /> MW-5(DUP) 23-Apr-98 <2500 <500 <10 <10 2500 71000 NA <br /> MW-5(DUP) 29-Jul 98 <2500000 <500000 40000 <10000 <10000 170000 NA <br /> MW 5(DUP) 06 Oct 98 <1250000 <250000 <5000 <5000 <5000 120000 NA <br /> MW 6 02 Sep-97 <500 <100 <20 <2 0 <2 0 <1000 NA Not detected <br /> MW-6 02 Dec 97 <500 <100 <2 0 <20 <2 0 <1000 NA <br /> MW 6 29-Jan 98 <500 <100 <2 0 <2 0 <2 0 <1000 NA <br /> MW-6 23 Apr 98 <500 <100 <2 0 <2 0 <2 0 <1000 NA <br /> MW-6 29-Jul 98 <1250 <250 <5 0 <50 <5 0 <1000 NA <br /> MW-6 06-Oct-98 <500 <100 <20 <20 <2 0 <1000 NA <br /> MW 6 27-Jan 99 <500 <100 <2 0 <2 0 <2 0 <2000 NA <br /> 0783 Page 2 of l I <br />