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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Sorvice Station No 2093 <br /> 3425 Tracy Boulevard Tracy Celdorrna <br /> Well Depth Groundwater Groundwater Product Ethyl- Xylenes <br /> Well Date Elevation to Water Elevation Elevation Thlckness TPHg Benzene Toluene benzene (total) Mt6E DO <br /> Number Sampled (ft,MSL) {ft,TOC} (ft,MSL) Change(ft) (tt) (019!1-) (019lL) 6,91L) (P91L) 101g/L) {f19/L) (mg/L) <br /> 4/20/1992 11 93 38 00 019 sheen <br /> ATR 3 76/1992 1222 3771 029 sheen <br /> (cont) 10/7/1992 1238 3755 016 sheen <br /> 1/18/1993 1122 3871 116 sheen <br /> 4/14/1993 1149 3844 027 sheen — <br /> 8/33W1993 1243 3750 094 sheen _ — -- <br /> 10/2711993 1239 3754 004 sheen <br /> 2/18/1994 1200 3793 039 1900 200 27 120 140 <br /> 5/20/1994 1207 3788 007 sheen -- .. - <br /> 10/7/1994 1238 37 55 031 sheen - - <br /> 12/16/1994 1203 3790 035 sheen _ <br /> 2/28/95^ 1205 3790 000 003 <br /> 4/26/1995 1232 3761 029 sheen - - <br /> 7/27/1995 1251 3742 019 <br /> 10/2811995 (a) 1297 _ <br /> 2/12/1996 <br /> 1210 087 1 500 89 <05 43 150 <br /> 4/18/1996 1260 - 050 - <br /> 7/18/1996 1260 000 1,600 220 52 70 51 1 800 <br /> 11/15/1996 1340 080 <br /> 31 4/1997 NP 1334 006 - 1,200 10 <05 43 19 620 005 <br /> 6/4/1997 1270 064 015 <br /> 8/11/1997 NP 1272 .002 3,400 20 <10 160 110 <50 <br /> 11/1711997 12-93 021 _ _ <br /> 3/3W1998 NP 1218 075 8400 <25 <25 100 52 120 08 <br /> 6125/1998 1241 023 -- <br /> 9/11/1998 NP 1284 -043 1,100 61 <05 25 22 41 123 <br /> 12/15/1998 1160 124 21 <br /> 3/17/1999 NP 1241 081 652 141 <05 117 729 164 78 <br /> 5/14/1999 1270 029 - - 120 <br /> 9/18/1999 NP 1279 009 2,800 175 <60 499 751 $23 19 <br /> 12/22/1999 1276 003 0 <br /> 2/29/2000 NP 1210 37 <br /> 066 405 235 <1 00 515 Ila 2160 36 <br /> 6/7/2000 NP 1281 071 _ _ <br /> 9125/2000 NP 1301 020 2,350 <250 565 269 840 464 060 <br /> 12/29/2000 11 47 1 54 42 <br /> 3(27/2001 P 1249 102 <50 0 <O 500 <0 500 <0 500 <0 500 526' 3 2 <br /> 6/2012001 1265 D 16 _ _ <br /> 9/12/2001 P 1271 006 54 053 10 056 25 83 25 <br /> 12!19/2001 1256 015 _ <br /> 3/14/2002 P 1257 - 001 2300 <10 10 <10 <10 <5 0` 128 <br /> 6/28/2002 - <br /> 9/11/2002 P 1278 - 51 <0 5 <0 5 <05 <0 5 <0 5' 29 <br /> 12/17/2002 — <br /> 3/31/2003 P 1256 3737 150 <05 <05 <0 5 <05 5 2• 28 <br /> 6/9/2003 1047 3946 209 Not Sampled <br /> 9/18/2003 P 12-79 3714 -232 - 70 <0.5 e0-5 <05 <05 <05' 2-7 <br /> ATR 4 4/23/1987 4,903 1085 3818 - — 21 000 3 000 200 <10 950 <br /> 12/22/1987 1100 38 OS 015 — 5 300 310 430 270 M <br /> 3/24/1988 1098 38 05 002 6 000 5 800 320 93D 740 <br /> 6/23/1988 1211 3692 113 — 5,200 237 8 8 20 10 <br /> 9/29/1968 1072 38 31 139 1 400 1 430 115 350 130 — <br /> 2/22/1989 1091 3812 019 22,000 1 300 82 54 170 <br /> 6/29/1989 1100 3803 009 - 7,900 590 38 97 220 <br /> 9/18/1989 1119 3784 019 630 280 13 49 100 <br /> 12/28/1989 1108 .3795 all 1 300 500 25 56 160 <br /> 4/18/1990 1125 37 76 017 440 150 51 35 63 <br /> 10/18/1990 11 3B 3765 013 380 26 41 48 0 38 <br /> 1110/1991 11 16 3787 022 330 ISO 31 30 35 <br /> 4/10/1991 1099 38 04 017 500 84 <05 <0 5 24 <br /> 7/10/1991 1132 3771 0 W 190 39 <05 37 3 <br /> 9/24/1991 1157 3746 025 — 70 22 <05 42 15 <br /> 1/23/1992 11 16 3787 041 1,200 300 52 49 72 <br /> 4/20/1992 1112 3791 004 <br /> 4121/1992 560 150 <50 36 29 <br /> 7/8/1992 1131 3772 590 150 21 38 39 <br /> 10/7/1992 1145 3756 014 <br /> 1 0/8!1992 1200 240 48 62 97 <br /> 1/18/1993 1045 3858 <br /> 1/19/1993 1200 240 55 44 90 <br /> 4/14/1993 1087 3816 <br /> 4/15/1993 - 810 160 42 47 63 -- <br /> 8/31/1993 (a} 1098 100 33 <05 60 13 <br /> 10/27/1993 1098 000 200 12 12 79 16 <br /> 2/18/1994 10 31 067 950 140 60 73 30 <br /> 5/20/1994 1071 040 8 100 590 59 190 220 -- <br /> KiWp--V5 DP1RM0200354,MerW QTR 032083 GWMR 7403 Pagr 3 of 1 t <br />