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OE I •
<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 Water Groundwater Depth to Ethyl- Total Dissolved
<br /> Well ID Casing(feet Level Elevation Screen(feet TPHg Benzene Toluene benzene Xylenes MtBE Oxygen
<br /> &Sample Date msl) (feet bgs) (feet ms]) bgs) AglL Ag/L Ag/L gg/L µg/l- µg/l, mg/L
<br /> MW-2 52 5/21/1998 2038 -955 10,200 2,220 562 238 628 <100 NA
<br /> (cont) 52 8/12/1998 2057 -974 1,100 234 390 238 494 <2 0 NA
<br /> 52 11/9/1998 2167 -1084 4,420 1,050 212 116 278 <2 0 NA
<br /> 52 2/17/1999 2098 -10 15 8 450 1,790 332 266 499 <2 0 NA
<br /> 52 5/25/1999 2028 -945 1,720 469 479 578 764 <2 0 NA
<br /> 52 8/18/1999 2140 -1057 8,870 2,610 176 316 411 <2 0 NA
<br /> 52 12117/99[2] 2224 -1141 1,090 309 796 128 50 <2 0 NA
<br /> 52 2/22/2000 21 37 -1054 4,510 1,500 138 151 207 <2 0 NA
<br /> 53 6/22/2000 2019 -936 735 141 17 12 22 <2 0 NA
<br /> 8/30/2000 2239 -1156 8,200 2,310 204 259 322 <2 0 NA
<br /> 11/21/2000 2196 -1113 1,140[41 210 174 233 515 <2 0 NA
<br /> 2/15/2001 2189 -1106 1,240[6) 161 <5 0 522 11 1 <2 0 to
<br /> 5/17/2001 2127 -1044 389[5] 289 <2 5 456 <2 5 <2 0 1 5
<br /> 8/16/2001 2257 -1174 470 73 <0 5 34 40 <2 0 29
<br /> 12/6/2001 2355 -1272 <2,000 26 <20 <20 <20 <5 0* 1 3
<br /> 2/14/2002 2202 -11 19 1,800 300 31 60 54 <0 50 16
<br /> 6/13/2002 2236 -1153 2,000 280 140 440 460 <2 5[10] 09
<br /> 8/22/2002 2342 -1259 5,200 1,100 120 160 280 <0 50 13
<br /> 11/13/2002 2442 -13 59 620 110 <5 0 <5 0 <5 0 <5 0 --
<br /> 2/12/2003 2469 -1386 400 30 1 1 34 3 5 <0 50 11
<br /> 5/29/2003 -- -- Not Sampled
<br /> 8/4/2003 2345 -1262 430 J 29 17 32 76 <0 50 33
<br /> 11/3/2003 2448 -1365 650 74 <10 12 11 <10 149
<br /> MW-3 53 2/16/1995 958 3624 -2666 360 37,000 14,000 340 2,100 470 NA NA
<br /> 53 5/17/1995 3149 -2191 39,000 13,000 1,200 2,100 1,500 NA NA
<br /> 53 8/15/1995 3106 -2148 31,000 11,000 220 1,800 910 NA NA
<br /> 53 11/29/1995 3125 -2167 41,000 10,000 350 1,900 860 NA NA
<br /> 2/27/1996 2851 -1893 36,000 10,000 510 1,800 990 NA NA
<br /> 53 5/15/1996 2682 -1724 40,000 12,000 690 2,000 1,300 <500*'[l] NA
<br /> 8/22/1996 2735 -1777 53,000 14,000 2,000 2,400 2,900 <500*[1] NA
<br /> 11/25/1996 2766 -1808 45,000 11,000 1,100 2,100 1,800 <500*[1] NA
<br /> 2/24/1997 2355 -1397 38,000 9,200 460 1,800 1,200 <500*(1] NA
<br /> 5/19/1997 2342 1384 38,000 9,800 620 1,900 1,100 <600*[l] NA
<br /> 53 8/21/1997 2449 -1491 36,000 9,500 910 2,000 1,500 <2,000*•[1] NA
<br /> 54 1!11711997 2557 -1599 37,000 12,000 2,100 2,100 3,000 <1,000**[lj NA
<br /> 54 2/9/1998 2307 -1349 32,000 9,700 510 2,000 2,700 <1,000**[11 NA
<br /> 54 5/22/1998 19 13 -955 20,900 7,440 144 1,760 479 <100 NA
<br /> 53 8/12/1998 1927 -969 13,600 4,860 159 1,200 408 <20 NA
<br /> 53 11/9/1998 2036 -1078 26,100 9,270 375 1,950 895 <2 NA
<br /> 53 2/17/1999 1979 -1021 31,300 9,820 595 2,340 1,570 946 NA
<br /> 53 5/25/1999 1995 -1037 24,000 9,320 356 2,220 1,070 107 NA '
<br /> 53 8/18/1999 2008 -1050 26,400 9,670 364 2,250 866 15 NA
<br /> k V5 BP ARC0T21681Q=rrerIy\2168 GWMR 4003 xls
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