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*E1 •
<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 TPHS Benzene Toluene benzene Xylenes MtBE Oxygen
<br /> &Sample Date msl) (feet bgs) (feet msl) bgs) µg/L µg/L µg/L µg/L Ag/L µg/L mg/L
<br /> MW-3 53 12/17199[2] 2094 -1136 26,900 8,800 113 2,070 610 582 NA
<br /> (cont) 53 2/22/2000 2052 -1094 1,300 487 19 2 122 65 4 652 NA
<br /> 53 6/22/2000 18 87 -9 29 21,300 7,430 616 1,610 3490 244 NA
<br /> 8/30/2000 1998 -1040 22,900 9,540 313 2,410 791 12 7 NA
<br /> 11/21/2000 2073 -11 15 31,300[4] 7,820 341 2,550 1,750 844 NA
<br /> 2/15/2001 2079 -1121 39,800[61 9,680 176 2,420 1,230 603 0 6
<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 -1287 26,000[8] 10,000 <200 2,000 770 <100* 0 8
<br /> 2/14/2002 2090 -1132 25,000 6,900 380 2,000 1,500 <100[101 19
<br /> 6/13/2002 2109 -1151 22,000 5,400 63 1,800 750 <50[10] 08
<br /> 8/22/2002 22 13 -1255 24,000 9,600 100 2,200 780 <25 0 9
<br /> 11/13/2002 2300 -1342 <50,000 8,400 <500 1,500 <500 <500 --
<br /> 2/12/2003 -- -- Not Sampled
<br /> 5/29/2003 2153 -1195 23,000 8,000 <50 1,900 430 <120 47
<br /> 8/4/2003 22 16 -1258 22,0001 8,100 <100 1,700 310 <100 3 3
<br /> 11/3/2003 2329 -1371 18,000 6,900 <50 1,700 350 <50 0 86
<br /> MW-4 58 2/16/1995 1234 3925 -2691 370 77,000 9,200 13,000 1,700 8,000 NA NA
<br /> 58 5/17/1995 3465 -2231 89,000 11,000 17,000 2,100 9,900 NA NA
<br /> 59 8/15/1995 3430 -2196 74,000 6,400 10,000 1,600 7,600 NA NA
<br /> 59 11/29/1995 3442 -2208 92,000 7,800 12,000 1,700 7,600 NA NA
<br /> 2/27/1996 3167 -1933 61,000 7,600 8,500 1,600 6,600 NA NA
<br /> 58 5/15/1996 3009 -1775 64,000 8,100 8,600 1,600 6,400 <500*[1] NA
<br /> 8/22/1996 3072 -1838 79,000 9,200 11,000 1,800 7,400 X700**[1] NA
<br /> 11/25/1996 3078 -1844 72,000 8,800 9,300 1,600 6,100 <500*[1] NA
<br /> 2/24/1997 2682 -1448 40,000 6,700 2,200 900 2,600 <600**[1] NA
<br /> 5/19/1997 2667 -1433 57,000 8,700 6,700 1,300 5 000 <600*[]] NA
<br /> 38 8/21/1997 2774 -1540 48,000 7,200 5,000 1,200 3,900 <1,000**[]] NA
<br /> 59 11/17/1997 2879 -1645 12,000 4,800 180 370 280 58 NA
<br /> 59 2/9/1998 2627 -1393 17,000 5,200 540 690 730 <500**[1] NA
<br /> 58 5/22/1998 2221 -9 87 16,700 5,360 611 663 715 <100 NA
<br /> 58 8/12/1998 2234 -1000 19,300 5,880 890 678 911 <20 NA
<br /> 58 11/9/1998 2342 -1108 23,600 6,340 720 692 875 45 9 NA
<br /> 58 2/17/1999 2265 -1031 21,300 6,970 950 907 1,030 666 NA
<br /> 58 5/25/1999 2202 -968 53,700 9,870 4,870 <100 4,600 646 NA
<br /> 58 8/18/1999 23 09 -1075 34,400 7 390 4,200 1,260 3,610 572 NA
<br /> 58 12/17/99[2] 2398 -1164 14,700 5,030 859 538 291 586 NA
<br /> 58 2/22/2000 2326 -1092 1,810 477 208 736 182 622 NA
<br /> 59 6/22/2000 2197 -9 63 12,000 4,200 35 2940 224 488 NA
<br /> 8/30/2000 22 99 -10 65 27,200 8,180 687 748 1,170 90 NA
<br /> 11/21/2000 23 69 -1135 13,200[4] 4,540 <50 438 306 576 NA
<br /> 2/15/2001 2378 -1144 24,800[6] 6,200 188 790 566 55 2 10
<br /> WJ5 BP ARC01021685Qwrter1y12168 GWMR 4QO3 x13
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