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TA*1
<br /> HISTORICAL GROUNDWATER MONITORING DATA ,
<br /> Former ARCO Service.Station No 2168
<br /> 441 Charter Way
<br /> Stockton California
<br /> Elevation
<br /> Top of Static Water Water Depth to Ethyl Total Dissolved
<br /> Well ID Casing(feet Level Elevation Screen TPHO Benzene Toluene benzene Xylenes ME Oxygen
<br /> &Sample Date msl) (feet bgs) (feet msl) (feet bgs) ug/L ug/L ug/L ug/L ug/L ug/L (ppm)
<br /> MW 2 11/21/2000 2196 1113 1 140[4; 210 174 233 515 <2 NA
<br /> (cont) 2/15/2001 2189 1106 1,240[6] 161 <5 0 522 I 1 1 <2 10
<br /> 5/17/2001 2127 1044 389[5] 289 <2 5 456 <2 5 <2 15
<br /> 8/16/2001 2257 -1174 470 73 <0 5 34 40 <2 29
<br /> 12/6/2001 2355 -1272 <2 000 26 <20 X20 <20 <5 0* 13
<br /> 2/14/2002 2202 -11 19 1,800 300 31 60 54 <0 50 16
<br /> 6/1312002 2236 -1153 2,000 280 140 440 460 <2 5[10] 09
<br /> 8/2212002 2342 1259 5,200 1 100 120 160 280 <0 50 13
<br /> 11/13/2002 2442 1359 620 110 <5 0 <5 0 <5 0 <5 0 --
<br /> MW-3 53 2/16/1995 959 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 11000 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**[1] 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 /> 224/1997 2355 13 97 38,000 9200 460 1,800 1,200 <500*[1] NA
<br /> 5/19/1997 2342 -13 84 38,000 9 800 620 1,900 1 100 <600*[1] NA
<br /> 53 8/21/1997 2449 -1491 36,000 9,500 910 2,000 1,500 <2 000"(1] NA
<br /> 54 11/17/1997 2557 -1599 37,000 12 000 2,100 2 100 3 000 <1 000**[1] NA
<br /> 54 2/9/1998 2307 -1349 32,000 9 700 510 2,000 2 700 <i 000**[1] NA
<br /> 54 5/22/1998 1913 -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 1 570 846 NA
<br /> 53 5/25/1999 1995 1037 24 000 9,320 356 2,220 1,070 107 NA
<br /> 53 8/18/1999 2009 -1050 26 400 9,670 364 2,250 866 15 NA
<br /> 53 12117/99[2] 2094 -1136 26 900 8,800 113 2,070 610 5 82 NA
<br /> 53 2/22/2000 2052 -1094 1,300 487 192 122 654 652 NA
<br /> 53 6/22/2000 1887 -929 21,300 7 430 616 1,610 3490 244 NA
<br /> 8/30/2000 N 98 -1040 22 900 9 540 313 2 410 791 127 NA
<br /> 11/21/2000 2073 -1115 31,300[4] 7,820 341 2,550 1,750 844 NA
<br /> 2/15/2001 2079 -1121 39 800[6] 9,680 176 2,420 1,230 603 06
<br /> 5/17/2001 2004 1046 27,100[5] 8,790 219 2,270 1,210 <10 05
<br /> 8/16/2001 2132 1174 30,000 8 700 320 2,800 1,800 <100* 09
<br /> 12/6/2001 2245 -12 87 26,000[8] 10 000 <200 2000 770 <100* 08
<br /> k U5 BF A1tG M21681Quuterly12168 GWMR4Q02
<br /> 3of9
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