Table 1 ✓
<br /> Groundwater Elevation and Analytical Data
<br /> Former ARCO Service Station No 2168
<br /> 441 W Charter Way, Stockton, CA
<br /> TOC Depth to Water Level Ethyl- Total
<br /> Well Date Pl Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (fig1L) (fig1L) tug1L) (N91L) (pg1L) WIL) WIL) (mg/L) Comments
<br /> MW-6 5/17/1995 -- 893 3064 -2171 130 000 - 9,900 16,000 1,800 10,000 NA NA (46)
<br /> 8/15/1995 -- 893 3022 -2129 120,000 - 7,700 9,700 1,500 8,900 NA NA (46)
<br /> 11129!1995 -- 893 3030 -2137 160,000 -- 8,200 11,000 1,700 10,000 NA NA (45)
<br /> 2/27/1996 - 893 2755 -1862 96,000 -- 10,000 13,000 1,400 8,100 NA NA
<br /> 5/15/1996 -- 893 2579 -1686 99,000 - 8,800 12,000 1,400 8,000 <900**[1] NA (47)
<br /> 8/22/1996 -- 893 2648 -1755 98,000 - 8,200 7,300 1,600 9,000 <1,000**[1] NA
<br /> 11/25/1996 - 893 2661 -1768 84,000 -- 9,300 9,500 1,500 8,800 <900**[1] NA
<br /> 2/24/1997 -- 893 2277 -1384 140,000 - 9,700 11,000 1,400 8,500 <2,000**[1] NA
<br /> 5/19/1997 -- 893 2253 -1360 69,000 - 7,900 5,000 1,200 7,700 <600*[1] NA
<br /> 8/21/1997 -- 893 2365 .1472 86,000 -- 7,400 4,000 1,300 7,400 <1,000**[1] NA (45)
<br /> 11/17/1997 -- 893 2470 -1577 42,000 -- 5,400 2,100 1,100 6,600 <67 NA (41)
<br /> 2!911998 -- 893 2201 -1308 62 000 - 12,000 7,000 1,300 7,400 <1 000**[1] NA (43)
<br /> 5/22/1998 -- 893 1814 -921 66,100 -- 9,740 4,620 1,180 6,820 <100 NA (42)
<br /> 8/12/1998 - 893 1842 -949 54,700 - 7,670 2,340 1,230 6,800 <200 NA (42)
<br /> 11/9/1998 -- 893 1973 -1080 15 900 - 1,080 315 267 1 240 <2 NA (42)
<br /> 2/17/1999 -- 893 1879 -986 53,500 - 9,870 2,720 1,540 8,320 <2 NA (45)
<br /> 5/25/1999 -- 893 1812 -919 43,900 - 7,020 1,880 1,520 8,290 <2 NA (45)
<br /> 8/18/1999 -- 893 1926 -1033 40,900 -- 6,260 1,590 1,470 7,460 478 NA (45)
<br /> 12/17/1999 -- 893 2008 -1115 4,080 - 536 149 122 756 <2 NA (45).[2]
<br /> 2/22/2000 -- 893 1929 -1036 38,200 -- 8,430 1,800 1,330 6,390 <2 NA (45)
<br /> 6/22/2000 -- 893 1815 -922 2,150 - <2 51 14 9 141 <2 NA (48)
<br /> 8/30/2000 - 893 1912 -1019 37,900 -- 5,290 1,260 11280 5,570 <2 NA
<br /> 11/21/2000 -- 893 1983 -1090 30,100[5] -- 5,120 1,080 1,150 5,150 <2 NA
<br /> 2/15/2001 - 893 1972 -1079 58,200[6] -- 5,930 1,400 1,540 5,820 <2 1 1
<br /> 5/17/2001 -- 893 1911 -1018 31,700[5] - 5,210 1,090 1,300 5,020 <40 09
<br /> 8/16/2001 - 893 2050 -1157 39,000 - 5,000 1,300 1,600 5,500 <50* 07
<br /> 12/6/2001 - 893 2150 -1257 28,000 - 5,800 <100 1,300 4,800 <100* 06
<br /> 2/14/2002 893 1980 -1087 32,000 -- 4 100 1,100 1,400 4,800 <50[10] 08
<br /> 6/13/2002 -- 893 2020 -1127 34,000 -- 3,600 1,100 1,300 4,000 <25[10] 09
<br /> 8/22/2002 - 893 2123 -1230 27 000 - 5,000 950 1 100 4,500 <25 1 1
<br /> 11/13/2002 - 893 2223 -1330 37,000 - 5,000 900 1,400 4,600 <100 --
<br /> 02/12/2003 P 893 22 48 -1355 31,000 -- 4,200 900 1,200 5,700 <50 101
<br /> 05/29/2003 P 893 2058 -1165 26,000 - 4,000 1,000 1,100 5,200 <120 467
<br /> Report Date September 24,2004 Page 8 of 12
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