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Page 12 of 35 I i � Table 1 Groundwater Elevation and Analytical Data 'ARCO Service Station#2133 29048 Benjamin Holt Dr,Stockton,CA Well Depth Product Groundwater Groundwater Xylenes 11 ir Well Date Elevation to Water Thickness Elevation Elevation TPI-Ig Benzene Toluene Ethylbenzene (total) MtBE DO Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) E-7 12!4/96 1188 - I, -1072 059 -- -- (cont} 3119197 NP 734 -- -618 454 <50 <05 <05 <05 <0 5 -- 02 6/5197 P 887 f -7711 -153 - -- -- -- -- 03 8119197 NP 1042 1 -926 -155 54 <0 5 <05 <0 5 <0 5 <5 02 11/25/97 P 1059 - .9 43 -017 -- -_ 3/19/98 P 432 �{ -316 627 <50 <0 5 <0 5 <0 5 <0 5 <5 21 6/24/98 639 -- -5231 -207 -- -- _ - 9/10/98 NP 815 -699 -176 <50 <0 5 <0 5 <0 5 <0 5 <5 12/17/98 821 -705 -006 .- -- _- 3110/99 NP 595 479 226 <50 <0 5 <0 5 <0 5 <0 5 <5 29 6122199 792 -- -6 761 -197 -- -- -- -- -- 29 9113199 NP 966 -850 -174 <50 <05 <05 <0 5 <0 5 <5 18 12/15/99 961 -845 005 -- — -- - -- -- 6 7 3123100 P 4 84 -368 477 <50 <0 5 <05 <00 5 <2 50 34 6/21100 710 - 1 -594 -226 005 9113/00 NP 889 - -773 -179 <50 <0 5 <0 5 <0 5 <0 5 <2 50 158 12/15/00 838 - -722 051 -- -- -- -- -- -- 085 311/01 NP 627 -- -511 211 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 26 5110101 636 -- .5 20 -009 -- -- -. -- -- 24 8122101 P 918 -8 02 -282 <50 <0 50 <0 50 <0 50 <0 50 <2 5 1215/01 P 8 25 7 09 0 93 __ -_ _ -- 3111102 P 5.54 -- -5381 171 <50 <0 50 <0 50 <0.50 <0 5o <2 5 143 i E-8 8/26/88 097 -- I -- -- -- 271 8 <2 5 46 -- 11/28/88 y - -- 210 4 21 76 .- 2/27189 -- - 227 25 57 478 i 5130/89 - -- -- -- 132 54 81 273 ' 8/22/89 -- -- -- -- 535 13 2 20 -- 12/4/89 -- -- 114190 28 1 <0 3 18 - __ � _- 2/1/90 .. .. -- -- -- -- -- 2/15190 - 2122190 - 3/8/90 1554 -- 1457, - 389 34 22 15-3 - 4/5/90 1579 - 1482 -025 - -- - - 4119/90 1589 - !14 92 -010 - �I - - - Projects!AW/21331ReportsCl'ables/gwtables2133 As • d