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• TA91
<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 DLSSolved
<br /> Well ID Casing(feet level Elevation Screen TPHG Benzene Toluene benzene Xylenes MtBE Oxygen
<br /> &Sample Date Ind) (feet bgs) (feet ml) (feet bgs) ugll. ug/L ug/L ug/L ug/L ug/L (ppm)
<br /> MW 3 2/14/2002 2090 ll 32 25 000 6 900 380 2,000 1,500 <100[10] 19
<br /> (cont) 6/13/2002 21 09 -1151 22 000 5 400 63 1,800 750 <50110] 09
<br /> 8/22/2002 2213 -1255 24,000 9 600 100 2200 780 <25 09
<br /> 11/13/2002 23 00 -1342 <50,000 8,400 <500 1,500 <500 <500 -
<br /> MW-4 58 2/16/1995 1234 3925 -2691 370 77 000 9200 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 /> 2/2.711996 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 -1839 -79000 9,200 11 000 1 800 7 400 /700**[1] NA
<br /> 11/25/1996 3078 -1844 72,000 8,800 9,300 1,600 6,100 <500*[1] NA
<br /> 212411997 2682 -1448 40,000 6700 2200 900 2,600 <600**[1] NA
<br /> 5/19/1997 2667 -1433 57,000 8,700 6,700 1,300 5,000 <600*[1] NA
<br /> 38 8/21/1997 2774 -1540 48,000 7,200 5,000 1,200 3 900 <1 000**[I] 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 5200 540 690 730 <500**[1] NA
<br /> 58 5/22/1998 2221 -987 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 6,340 720 692 875 459 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 2309 1075 34,400 7,390 4,200 1,260 3,610 572 NA
<br /> 58 12117/99[2] 2398 1164 14 700 5,030 859 538 291 586 NA
<br /> 58 2222000 2326 1092 1 810 477 208 73 6 182 622 NA
<br /> 59 6/22/2000 2197 -963 12,000 4,200 35 2940 224 498 NA
<br /> 8/30/2000 2299 1065 27,200 8,180 687 748 1,170 90 NA
<br /> 11/21/2000 2369 1135 13,200[4] 4,540 <50 438 306 576 NA
<br /> 2/15/2001 2378 1144 24,800[6] 6,200 188 790 566 552 10
<br /> 5/17/2001 2301 1067 16 600[5] 4,720 117 498 514 592 16
<br /> 8/16/2001 2434 -1200 20,000 4 900 110 830 910 <100* 19
<br /> 12/6/2001 2545 -1311 <50,000 6,200 <500 800 660 <500* to
<br /> 2/14/2002 2389 1155 20 000 5 800 200 1 100 890 <l00[IO] 10
<br /> 6/13/2002 2415 -1181 21 000 4,400 170 860 790 <50{10] 08
<br /> 8/222002 25 18 -1294 32 000 9 700 800 1,600 1,700 100 08
<br /> 11/13/2002 2610 -1376 <50,000 15,000 <500 1,900 <500 <500 --
<br /> k V5 BP ARC05021681Qvarterly12168 GWMR4Q02
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