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E <br /> Page 26 of 35 <br /> Table 1 <br /> { Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,CA <br /> � II <br /> Well Depth Product I Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft, MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> PR-2 6/21/00 861 -- -796 -428 -- -- -- -- 22 <br /> (cont) 9/13/00 NP 836 - -771 025 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 29 <br /> 12/15/00 NP 785 -- -720 051 -- -- -- -- -- 1 43 <br /> 3/2/01 P 573 -508 212 <50 0 <0 500 <0 500 <0 500 1 10 <2 50 42 <br /> 5/10/01 -518 -010 <br /> 5 83 � -- -- -- 21 <br /> 8/22101 P 864 -799 -281 <50 <0 50 <0 50 <0 50 <0 50 <2 5 <br /> 12/5/01 P 771 -706 093 -- — .. - <br /> 3112102 P 612 — -547 159 <50 <0 50 <0 50 <0 50 <0 50 <2 5 175 <br /> E <br /> BHD-1 8/26/88 058 -- - b -- -- -- 6,050 220 2,000 1,000 -- <br /> -_ <br /> 11/28/88 -- -- -- -- - 1,870 <100 480 100 <br /> 2/27/89 - <br /> 5/30/89 -- -- - -- - 2,900 120 870 780 - -- <br /> 8/22189 -_ -- - -- -- 1,450 300 890 1,170 - <br /> 12/4/89 -- -- - - - 1,400 170 1,600 2,800 -1/4/90 1570 <br /> 211/90 1542 - 1484 028 - -- - - - <br /> 2/15/90 1539 __ f 14 81i 003 -- _ -- -_- <br /> 2122190 1622 E 1564 -083 <br /> i <br /> 3/8190 1517 — { ��14 59 105 -- 1,250 50 1,870 1,360 -_ <br /> 4/5/90 1538 -- if 1480 -021 -- _- .. _. - <br /> 4/19/90 1558 I E 1500 -020 <br /> 5110/90 1592 + -15 341 -034 — -- -- <br /> 5/24/90 1589 - -1531003 <br /> 03 <br /> -- -- -- - - -- <br /> 6/5/90 I -- __ <br /> 6118190 _. -- -- -' <br /> 16 37 -1579' -- 1180 40 2070 860 <br /> 7/12190 1660 1602 -023 -- .- .- _ <br /> 8116/90 1789 -- -1731 -129 -- -- -- -- <br /> 9/17/90 1724 -1666� 065 <br /> 9118/90 1724 -1666 000 2,000 110 9 30 650 <br /> 10/11/90 1731 116731 -007 -- -- <br /> 1216/90 1724 __ -1666� 007 -_ <br /> 2/11/91 1692 -1634 032 6,000 890 60 1,000 360 - <br /> 2/25/91 1686 1628 006 -- - _- <br /> 4/23/91 1599 115 41 087 _ 3,300 240 48 440 130 -- <br /> 7/16/91 1800 -1742 -201 7,000 420 420 400 830 - <br /> l � <br /> E <br /> Pro acts/ /2133/Ae orts/Tablesl 1 , i <br /> ! p gwtables2133 xls � � , <br />