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TOPE 1 J
<br /> Groundwater Elevation and Analytical Data
<br /> Former ARCO Service Station No 2168
<br /> 441 Charter Way
<br /> Stockton,California
<br /> Elevation
<br /> Top of Static Groundwater Depth to Ethyl- Total Dissolved
<br /> Well ID & Casing Water Level Elevation Screen Benzene Toluene benzene Xylenes MtBE Oxygen
<br /> Sample Date (feet ms l) (feet bgs) (feet nisi) (feet bgs) TPHg pg/L ygIL pg/L A/L p9/L pg/L mg&
<br /> MW 5 11/1342002 2276 -1348 <50 12 <0 50 <0 50 <0 50 <0 50 -
<br /> (cont) 2/12/2003 2276 1348 76 41 <0 5 1 4 17 <05 31
<br /> 5/29/2003 2126 1198 110 59 <0 5 061 27 <0 5 37
<br /> 8/4/2003 2186 1258 3901 29 18 32 75 <0 50 26
<br /> 11/3/2003 2291 -1363 620 58 <5 0 10 93 <5 0 261
<br /> MW 6 47 2/16/1995 893 .9706 28 13 300 39,000 6,400 5,200 850 4,400 NA NA
<br /> 46 5/17/1995 3064 2171 130,000 9,900 16,000 1,800 10,000 NA NA
<br /> 46 8/15/1995 3022 2129 120,000 7,700 9,700 1,500 8,900 NA NA
<br /> 45 11/29/1995 3030 2137 160,000 8,200 11,000 1,700 10,000 NA NA
<br /> 2/27/1995 2755 1862 96,000 10,000 13,000 1,400 8,100 NA NA
<br /> 47 5/15/1996 2579 1686 99,000 8,800 12,000 1,400 8,000 <900"[3] NA
<br /> 8/22/1996 2648 1755 98,000 8,200 7,300 1,600 9,000 <1,000"'[1] NA
<br /> 11/25/1996 2661 1768 84,000 9,300 9,500 1,500 8,800 <900'"[3] NA
<br /> 2/24/1997 2277 1384 140,000 9,700 11,000 1,400 8,500 <2,000""[1] NA
<br /> 5/19/1997 2253 1360 69,000 7,900 5,000 1,200 7,700 <600'[1] NA
<br /> 45 8/21/1997 2365 1472 86,000 7,400 4,000 11300 7,400 <1,000"[1] NA
<br /> 41 11117!1997 2470 1577 42 000 5 400 2,100 1 100 6,600 <67 NA
<br /> 43 2/9/1998 2201 1308 62000 12,000 7,000 1,300 7,400 <1,000'"[1] NA
<br /> 42 5!2211998 1814 921 66100 9740 4620 1,180 6,820 <100 NA
<br /> 42 8/12/1998 1842 -949 54,700 7,670 2,340 1,230 6,800 <200 NA
<br /> 42 11/9/1998 1973 -1080 15 900 1,080 315 267 1,240 <2 NA
<br /> 45 2/17/1999 1879 986 53,500 9,870 2,720 1,540 8,320 <2 NA
<br /> 45 5/25/1999 1812 -919 43 900 7,020 11880 1,520 8,290 <2 NA
<br /> 45 8/18/1999 1926 1033 40,900 6 260 1,590 1,470 7,460 478 NA
<br /> 45 12!17/99[2] 2008 11 15 4,080 536 149 122 756 <2 NA
<br /> 45 2/2212000 1929 1036 36 200 8,430 1,800 1,330 6,390 <2 NA
<br /> 48 6/22/2000 1815 922 2,150 <2 51 15 14 <2 NA
<br /> 8/30/2000 1912 1019 37,900 5,290 1,260 1,280 5,570 <2 NA
<br /> 11/21/2000 1983 1090 $0,100[5] 5,120 11080 11150 51150 <2 NA
<br /> 2/15/2001 19 72 1079 58,200[6] 5,930 1,400 1,540 5,820 <2 11
<br /> 5/17/2001 19 11 1018 31 700[5] 5,210 1,090 1,300 5,020 <40 0 9
<br /> 8/16/2001 2050 11 57 39,000 5,000 1,300 1,600 5,500 <50' 0 7
<br /> 12/6/2001 2150 1257 28,000 5,800 <100 1,300 4 800 <100" 0 6
<br /> 2/14/2002 1980 1067 32,000 4,100 1,100 1,400 4,800 <50[10] 0 8
<br /> 6/13/2002 20 20 -1127 34,000 3,600 1,100 1,300 4,000 <25[101 09
<br /> 8/22/2002 2123 12-30 27,000 51000 950 1,100 4,500 <25 1 1
<br /> 11/13/2002 22 23 1330 37,000 51000 900 1,400 4,600 <100
<br /> 2/12/2003 2248 -1355 31,000 4,200 900 1,200 5,700 <50 10
<br /> 5/29/2003 2058 1165 26,000 4,000 1,000 1,100 5,200 <120 47
<br /> 8/4/2003 21 26 1233 27,000 4,100 870 730 6,000 <50 15
<br /> 11/3/2003 2222 -1329 220 R <2 5 R <2 5 R <2 5 R <2 5 R <2 5 R 211
<br /> k 1W processW5 BP ARC01021681Quarterlyl4 QTR 0312168 GW MR 4003
<br /> Page 6 of 9
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