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Table 2 <br />` Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Drive <br /> Stockton California <br /> Well Depth Product Groundwater Groundwater Ethyl Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (tt,MSL} Change(ft) (ugn) (u9n) (UP (u94) (ug") (u011) (mglL) <br /> MW 5 3110199 P 5 86 — -482 2 20 80 6 <0 5 <0 5 <0 5 <0 5 <5 2 8 <br /> {cont) 6122799 Well box inaccessible <br /> 9113199 Well box inaccessible <br /> 12116/99 P 9 25 — -821 — 186 096 <0 5 <0 5 103 <2 5 33 <br /> 3!23100 P 4 61 — 357 4 64 355 0 620 <0 5 <0 5 128 <2 5 2 0 <br /> 6/21100 P 696 — -592 2 35 <50 <05 <0 5 <0 5 <05 <2 5 0 2 <br /> 9113100 P 868 — 764 172 c50 <05 <O 5 <0 5 <05 <2 5 241 <br /> 1211 5!00 P 816 » 712 0 52 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 0 83 <br /> 312101 P 610 — 506 206 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 3 5 <br /> 5110101 P 619 — 515 -0 09 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 3 0 <br /> 8122101 P 888 -- 7 84 2 69 <50 <O 50 <0 50 <0 50 058 <2 5 — <br /> 1215101 P 807 703 081 62 0 67 <0 50 <0 50 0 57 <2 5 079 <br /> 3112!02 P 631 — 527 176 <50 <0 50 <0 50 -050 <0 5C <2 5 0 98 <br /> 616102 P 724 — -620 -093 <51) <0 50 <0 50 -050 <0 50 5 6 0 62 <br /> 9724102 P 902 — 798 1 78 <50 075 <0 50 <0 50 <0 50 <2 5 042 <br /> 12117102 P 7 44 — -640 158 <50 <0 50 <0 50 <0 50 <0 50 <2 0 <br /> 3118103 P 723 — -619 021 <50 <050 <0 50 <0 50 <0 50 <2 5 158 <br /> 6117103 P 745 — -641 -0 22 <50 <D 50 <0 50 <0 50 <0 50 <2 5 000 <br /> 9/24/2003 a P 919 — -815 1 74 <25 000 <250 380 <250 <250 <250 0 31 <br /> 12118103 858 » 7 54 061 — » — — — — » <br /> 3116104 P 645 — -541 213 <50 <0 50 <0 5o <o 50 <0 50 <0 50 — <br /> Notes <br /> ft=feel TPHg=Total petroleum hydrocarbons as gasoline <br /> _ MSL=mean sea level MtBE=Methyl ten butyl ether <br /> TOC=fop of casing DO=Dissolved oxygen <br /> ugA=Micrograms per liter OCTB=Trip Blank <br /> mg1L=miNgrams per liter <br /> PAPP=purgedlnot purged <br /> <=below given laboratory detection Irma <br /> —=not measured or analyzed(in case of product thickness none found) <br /> ^=groundwater elevation corrected by adding 0 75 X product thickness <br /> =Chromatogram Pattern Gasoline c6-ct 0 <br /> =Hydrocarbon pattern is present in the requested fuel quanbtabon range but does not resemble the pattern of the requested fuel <br /> a=sample was analyzed using EPA Method 8260 <br /> b=Laboratory reports that this sample may be biased high due to carryover from the proviaus sample <br /> I iProlectsrARC0121331Tableslgwtabfes2133 As 56 01 56 <br />