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• Ts Pao of 17 <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) (mg/1) <br /> 11/17/97 NP 954 -- 3754 013 <50 <0 5 <0 5 <0 5 <0 5 <2 5 -- <br /> 03/30/98 NP 896 — 3812 058 <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 1 <br /> 06/25/98 NP 935 -- 3773 -039 <50 <0 5 <0 5 <0 5 <0 5 <5 0 32 <br /> 09/11/98 NP 947 — 3761 -012 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 26 <br /> 92/15/98 NP 931 — 3777 016 <50 <05 <05 <05 <05 <50 28 <br /> 03/17/99 NP 916 — 3792 015 <50 <0 5 <0 5 <0 5 <0 5 <5 0 18 <br /> 05/14/99 NP 933 3775 -017 <50 <0 5 <0 5 <0 5 <0 5 <5 0 20 <br /> 09/16199 NP 955 — 3753 -022 <50 <0 5 <0 5 <0 5 <0 5 <5 0 37 <br /> 12/22/99 NP 942 — 3766 013 <50 <0 5 <0 5 <0 5 <0 5 <2 50 083 <br /> 02/29/00 NP 893 — 3815 049 <50 <0 5 <0 5 <0 5 <0 5 <2 50 57 <br /> 06107/00 Welllnaccessable -- .- — __ — .. — — <br /> SMW-1 10/07/94 5024 1286 — 3738 3738 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 — 3753 -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 /> 02/12/96 1200 — -- - 3 800 390 <0 5 220 98 -- — <br /> 04/18/96 1258 -- — - 500 60 <0 5 20 74 -- -- <br /> 07/18/96 1285 — — 3,400 200 <5 130 56 60 <br /> 11/15/96 1340 — — 2,500 180 <2 5 62 21 590 - <br /> 03/14/97 NP 1335 - — -- 1,700 130 <0 5 <0 5 <0 5 230 0 13 <br /> 06/04/97 NP 1273 — — -_ 520 36 3 1 14 1 5 47 005 <br /> 08/11/97 — -- - -- — -- — -- -- -- -- <br /> 11/17/97 NP 1296 — -- - <50 <0 5 <0 5 <0 5 <0 5 290 -- <br /> 03/30/98 NP 1215 — — — 910 46 <0 5 <0 5 1 1 110 1 6 <br /> 06/25/98 NP 1270 -- -- — 692 0 666 <0 5 <0 5 <0 5 765 1 6 <br /> 09/11/98 NP 1290 — -- — <50 <0 5 <0 5 <0 5 <0 5 290 1 7 <br /> 12/15/98 -- -- — — — — -- -- -- -- -- <br /> Well <br /> Well no longer monitored or sampled <br />