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0 <br /> qge4ofl6 <br /> Table 1 <br /> Groundwatar Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd Tracy CA <br /> Well Depth Groundwater Groundwater Product Ethyl Xylenes <br /> Well Date Elevation to Water Elevation Elevation Thukness TPH9 Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft MSL) (it TOC) R MSLJ Change(ft) (11) (ppb) (ppb) (ppb) (ppb ( b) (ppb) (mg/L <br /> —RrV3--2 i 1994 12 00 37 93 0 39 1 900 200 21 i 20 140 <br /> {cont) 5/20/1994 1207 3786 -007 sheen – _ <br /> 10!7/1994 12 38 37 55 0 31 sheen _ _ – <br /> 12/16/1994 1203 3790 0 35 sheen <br /> 2/28/95A 1205 12 05 37 90 000 0 03 <br /> 4/26/1995 1232 37 61 0 29 sheen – <br /> 712711995 12 51 37 42 019 <br /> 1012611995 (a) 12 97 _ <br /> 2112/1996 12 10 0 87 1 500 89 <0 5 43 150 _ <br /> 4/18/1996 12 60 0 50 „ <br /> 7/18/1996 12 60 000 1 600 26 52 70 51 1,800 , <br /> 1 IM 5/1996 1340 080 <br /> 3/14/1997 NP 1334 006 1200 10 <0 5 43 19 620 0 05 <br /> 6/4/1997 1270 064 - 015 <br /> 8/11/1997 NP 1272 002 3 400 20 <10 160 110 <50 <br /> 11/17/1997 12 93 0 21 — <br /> 313011998 NP 12 18 — 075 8400 <2 5 <2 5 100 52 120 0 6 <br /> 6/25/1998 12 41 023 – _ <br /> 9/11/1998 NP 1284 0 43 1 100 61 <0 5 25 22 41 1 23 <br /> 1211511996 11 60 1 24 – 2 1 <br /> 3/17/1999 NP 1241 081 652 1 41 <0 5 11 7 729 164 7 6 <br /> 5/1411999 1270 029 – – <br /> 120 <br /> 9/1611999 NP 12 79 009 2 800 175 <5 0 499 151 523 1 9 <br /> 12/22/1999 12 76 0 03 -- – 0 37 <br /> 2129/2000 NP 12 10 066 405 2 35 <1 00 515 1 18 2,160 3 6 <br /> 617/2000 NP 12 81 0 71 – <br /> 9/25/2000 NP 13 01 020 2 350 <2 50 566 269 840 464 0 60 <br /> 12129/2000 11 47 1 54 4 2 <br /> 3/27/2001 P 12 49 1 02 <50 0 <0 500 <0 500 <0 500 <0 500 526' 3 2 <br /> 6/20/2001 12 65 -015 <br /> 911212001 P <br /> 1271 005 54 0 53 1 0 0 56 2 5 8 3 2 5 <br /> 12/1912001 12 56 0 15 <br /> 3/14!2002 P 12 57 0 01 2300 <10 10 <10 <10 <5 0' 1 28 <br /> 6/28/2002 _ <br /> 9/11/2002 P 1278 – – 51 <0 5 <0 5 <0 5 <0 5 <0 5' 2 9 <br /> ATR 4 4/23/1987 49 03 1085 3818 – 21 000 3,000 200 <10 950 <br /> 12122/11)87 f f 00 3603 -015 – 5 300 310 430 270 <br /> 3/24/1988 1098 38 05 0 02 – 6 000 5 800 320 930 740 _ <br /> 6/23/1988 1211 36 92 1 13 5,200 237 B 8 2 10 _ – <br /> 9/29/1968 1072 3831 1 39 1 400 1 430 115 350 130 <br /> 2/22/1989 1091 38 12 019 22 000 1 300 82 54 170 _ <br /> – <br /> 6129!1989 11 00 3803 0 09 – 1 300 590 36 97 220 _ <br /> 9/18/1989 11 19 37 84 019 – 630 280 13 49 100 _ <br /> – <br /> 1212811989 11 08 3795 0 11 1 300 500 25 56 160 <br /> 4/18/1990 11 25 3778 017 440 150 5 1 35 63 <br /> 10/16/1990 11 38 3765 013 380 26 41 4 8 038 _ <br /> 1/1011991 11 16 3787 022 330 150 31 30 35 _ – <br /> 4110/199f 1099 3804 017 500 8 4 <0 5 <0 5 24 _ <br /> 7/10/1991 11 32 3771 0 33 -- 190 39 <0 5 3 7 3 <br /> 9124/1991 11 57 3746 025 70 22 <05 4 2 1 5 – <br /> K lZ aP ARWW2UG35Qwt"W QTR OZTada 1 2 3 gs <br />