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Table 1
<br /> Groundwater Elevation and Analytical Data
<br /> Former ARCO Service Station No 2168
<br /> 441 W Charter Way, Stockton CA
<br /> Top of Depth to Water Level Ethyl- Total
<br /> Well Date P1 Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DD
<br /> Number Sampled NP Elevation (feet bgs) (feet msl) (pg1L) (pg/L) (pg/L) (pgll-) (pg1L) (F,g1L) (pg/L) (mg/L) Comments
<br /> MW-1C 02/0912004 P 1021 2410 -1389 <50 - <0 50 <0 50 <0 50 <0 50 <0 50 213
<br /> W-2 2/16/1995 -- 10 83 37 48 0 -26 65 36,000 -- 6,300 4,600 610 2,700 NA NA (53)
<br /> A+I
<br /> 5/17/1995 - 1083 - -- - -- - -- - -- - Well Inaccessible
<br /> 8!1511995 -- 10 83 3245 -2162 20,000 - 3,500 2,000 280 1,300 NA NA (53)
<br /> 19/29/1995 1083 3262 -2179 30,000 - 3 800 2,700 380 1,800 NA NA (53)
<br /> 2/27/1996 1083 2987 -1904 -- -- -- -- - - - Well not sampled
<br /> 5/15/1996 - 1083 2816 -1733 16 000 - 2,600 1,000 210 910 <200-`[1] NA (53)
<br /> 8/22/1996 - 1083 2876 -1793 34,000 -- 5 900 2 500 560 2 300 <300--[1] NA (53)
<br /> 11/25/1996 - 1083 2895 -1812 26 000 - 4,000 2,000 390 1 800 <300-[i] NA
<br /> 2/24/1997 - 1083 2495 -1412 22,000 -- 3,100 1,300 340 1 400 <500-11] NA
<br /> 5/19/1997 - 1083 2484 -1401 28,000 -- 4,700 1,900 480 2,200 <300-[1] NA
<br /> 8/2111997 - 1083 2592 -1509 15,000 - 3,000 1200 320 1,200 <500--111 NA (52)
<br /> 91/17/1997 -- 1083 2694 -1611 2,200 - 5i0 120 44 130 <100--111 NA (53)
<br /> 2/9/1998 - 10 83 2433 .1350 15,000 -- 3,700 790 440 1,000 <500-'[i] NA (53)
<br /> 5/21/1998 - 1083 2038 -955 10,200 -- 2,220 562 238 628 <100 NA (52)
<br /> 8/12/1998 -- 10 83 20 57 -9 74 1,100 -- 234 39 23 8 49 4 <2 NA (52)
<br /> 11/9/1998 - 10 83 21 67 -1084 4,420 -- 1,050 212 116 278 <2 NA (52)
<br /> 2/17/1999 - 10 83 20 98 -1015 8,450 - 1,790 332 266 499 <2 NA (52)
<br /> 5/25/1999 -- 10 83 20 28 -9 45 1,720 - 469 47 9 57 8 76 4 <2 NA (52)
<br /> 8/18/1999 - 1083 2140 -10 57 8,870 - 2,610 176 316 411 <2 NA (52)
<br /> 12/17/1999 - 1083 2224 -1141 1 090 - 309 796 128 5 <2 NA (-52).[21
<br /> 2/22/2000 - 1083 21 37 -1054 4,510 - 1,500 138 151 207 <2 NA (52)
<br /> 6/22/2000 - 1083 2019 -936 735 -- 141 174 124 216 <2 NA (53)
<br /> 8/30/2000 - 1083 2239 -1156 8,200 -- 2,310 204 259 322 <2 NA
<br /> 11/21/2000 - 1083 2196 -11 13 1,140[4] - 210 174 233 51 5 <2 NA
<br /> 2/15/2001 -- 1083 2189 -11 06 1,240[61 -- 161 <50 522 11 1 <2 1
<br /> 5/17/2001 -- 10 83 21 27 -1044 389[5] - 289 <2 5 456 <2 5 <2 15
<br /> 8/16/2001 -- 1083 2257 -1174 470 - 73 <0 5 34 4 <2 29
<br /> 12/6/2001 - 1083 2355 -1272 <2,000 - 26 <20 <20 <20 <5 0- 1 3
<br /> 2/14/2002 -- 1083 2202 -11 19 1,800 - 300 31 60 54 <0 50 16
<br /> 6/13/2002 -- 10 83 2236 -1153 2,000 280 14 44 46 <2 5[10] 09
<br /> 8/22/2002 -- 1083 2342 -1259 5,200 -- 1,100 120 160 280 <0 50 13
<br /> 11113!2002 - 1083 2442 -1359 620 -- 110 <5 0 <5 0 <5 0 <50 -
<br /> Report Date April 21,2004
<br /> Aage 3 of 12
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