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4\ <br /> Table 4-3. Analytical Results of Groundwater Samples Collected a[ARCO 5[.Ition 2093 Tran,Cal-orrua <br /> Aromatic volatile orgsrtics(BETX),ppb Tl'll,11Pt11 <br /> Sample bale Etl[yl- I Gasoline Diesel Aloturuil Total :ichlorocthane <br /> Number sam led Benzene benzene Toluene I Xvlene TPN range h1[ <br /> DHS <br /> levels <br /> (a) 1 (a) 680(a) 100(b) 1750(a) (c) (c) (c) (c) (d) 0.5(:t I <br /> ATR-1 4123/87 <0.5 <0.5 <0.5 23 <0.1 <0.1 <0.1 <0.1 0.024 <br /> 12122/87 5.9 0.9 <0.5 <0.5 - <br /> 3124188 <0.5 <0.5 <03 <0.5 <(1.2 <O.2 <0.2 <0.1 <br /> 6123/88 <0.5 4.3 1.3 2.2 -- dl? <0.2 <0.2 <0.1 <br /> 9129/88 <0.5 <0.5 <0.5 <0.5 -- <0.2 <0.2 <0.2 <U.l <br /> 212289 1.4 <0.5 <0.5 1.8 <0.1 <U.I <0.I <0.1 <br /> 6121/89 360 2.1 0.8 36 0.52 (c) (c) (e) <br /> 9118/89 250 570 1200 7100 27 (e) (e) (e) <20 <br /> 12/27/89 3.4 1.3 <03 1.4 <0.05 (e) (e) (e) <0.5 <br /> 4118190 21 16 1.5 16 0.13 0.13 <0.5 <br /> 10/16/99 1 2 <0.5 2 <0.05 <0.05 <0.05 <0.05 <0.5 <br /> ATR-2.' 4/23;87 <0.5 <[=.S 0.5 <0.5 <0.1 <0.1 <0-1 <0.1 0.018 <br /> 12/22;17 <0.5 <0.5 <0.5 <0.5 -- - - - -- <br /> 3/24188 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <1.1 <br /> 61230 <0.5 <0.5 <0.5 <0.5 <0.2 <0.2 <0.2 <0.1 <br /> 9129/88 <0,5 <0.5 <0.5 <0.5 <1.0 <1.0 <1.0 <0.I <br /> 2/22189 1.8 0.6 0.7 3.4 0.37 0.37 <0.1 <0,1 -- <br /> 6/21189 1.9 0.4 <03 <0.3 <0.05 (e) (e) (e) <br /> 9118/89 1.9 1.1 0.9 8.2 0.009 (e) (e) (e) 1.6 <br /> 12/27/89 3.5 1.1 <0.3 0.3 <0.05 (e) (e) (e) 7 <br /> 4/18/90 2 9 <0.3 <0.3 <0.3 0.05 0.05 6•2 <br /> 10116190 <0.5 <0.5 <0.5 <15 <0.05 <0.05 <0.05 <0.05 6.2 <br /> ATR-3 4/23/87 2300 <5.0 180 2300 17 17 <0.1 4.1 0.1 - <br /> IW22187 5000 530 50 250 -- - - - - <br /> 3/24188 8300 4400 8700 7800 43 43 <0,5 <0.5 <0.1 <br /> 6123/88 6160 1800 4221 4750 70 70 <0.2 <0.2 <0.1 <br /> 9129/88 8850 2190. 17003 8170 57.4 57.4 <I.0 <1.0 <0.1 <br /> 2122/89 1000 480' 2100 2000 110 110 <0.1 <0.1 -- <br /> 6/29189 890 250 520 1100 4.5 (e) (e) (e) -- - <br /> 9118189 1000 460 1300 2200 7.4 (e) (e) (e) -- 19 <br /> 12/28/89 840 840 1400 5600 27 (e) (e) [e) QO <br /> 4118190 1000 340 490 1500 4.8 4.8 <10 <br /> 10116190 19{10 780 1300 4600 14 14 <!0 <br />