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TO Pa*f16 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,California <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Elevation to Water thickness Elevation Elevation Change TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mgA) j <br /> ATR-12 08/31/93 939 — 3769 -0 60 <50 <0 5 <0 5 <0 5 <05 — .. <br /> (cont) 10/27/93 936 -- 3772 003 <50 <0 5 <0 5 <0 5 <0 5 <br /> 02!18194 902 — 3806 0 34 010 04 0 5 <0 3 <05 - <br /> 05/20/94 906 -- 38 02 -004 <10 <0 3 <0 3 <0 3 <05 <br /> 10/07/94 — .- _ _ __ _ .. _ _ <br /> 12/16/94 -- .- -- -- <br /> 02/28/95 .- -- _ <br /> 04/25/95 -- -- _ <br /> 04126/95 -- — -- -- <br /> 07/27/95 <br /> 10/26/95 .- -- — _ _ _ -- <br /> 02J1 Z(96 <br /> _02!12196 885 -- 3823 -- <50 <0 5 <0 5 <0 5 <05 -- <br /> 04l18196 922 -- 37 86 -037 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 07/18/96 953 -- 37 55 -031 <50 <05 <0 5 <0 5 <0 5 <5 <br /> 11/15/96 1000 -- 3708 -047 <50 <05 <0 5 <0 5 <0 5 <5 -- <br /> 03114/97 NP 1011 -- 3697 -011 <50 <05 <0 5 <05 <0 5 -- 009 <br /> 06/04/97 NP 934 -- 3774 0 77 <50 <05 <0 5 <05 <0 5 <2 5 012 <br /> 08111/97 NP 9 67 -- 37 41 -033 <50 <05 <0 5 <05 <0 5 <2 5 -- <br /> 11/17/97 NP 9 54 -- 3754 013 <50 <05 <0 5 <05 <05 <2 5 -- <br /> 03/30/98 NP 896 -- 3812 058 <50 <05 <0 5 <05 <0 5 <5 0 21 <br /> 06!25198 NP 935 -- 3773 -039 <50 <05 <0 5 <05 <0 5 <5 0 32 <br /> 09111198 NP 947 37 61 -012 <50 <05 <0 5 <0 5 <05 <2 5 1 26 <br /> 12/15/98 NP 9 31 -- 3777 016 <50 <05 <0 5 <0 5 <05 <5 0 2 8 <br /> 03/17/99 NP 916 -- 3792 015 <50 <0 5 <0 5 <0 5 <05 <5 0 1 8 <br /> 05/14/99 IVP 933 -- 3775 -017 <50 <0 5 <0 5 10 5 <0 5 <5 0 211 <br /> 09/16/99 NP 965 — 3753 -022 <50 <0 5 <0 5 <0 5 <0 5 <5 0 3 7 <br /> SMW-1 10/07/94 5024 1286 -- 3738 37 38 2,200 250 110 <0 5 360 — -- <br /> 12/16/94 1254 — 3770 032 5,200 740 210 330 600 <br /> 02/28/95 1240 — 3784 014 8,300 1000 330 450 790 — <br /> 04/26/95 1271 -- 37 53 -031 5,100 470 110 270 480 - <br /> 07/27/95 1300 -- 3724 -029 7,400 410 42 360 630 — — <br /> 10/26/95 {c) 1303 -- -- -- -. _ _ _ _ _ _ <br /> 10/27/95 — — — -- 7,600 640 33 440 410 -- <br /> 02/12196 1200 = _ — 3,800 390 <0 5 220 98 <br /> 04/18/96 1258 500 60 <05 20 7 4 — <br />