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Tat <br /> ' Page 1 of 14 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 r <br /> 3425 Tracy Blvd,Tracy,Calofomia <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Well <br /> 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) (mgfl) <br /> ATR-1 4123187 50 58 1249 - 3809 — <100 <05 <05 <0 5 23 <br /> 12/22/87 1263 3795 -014 — 5 9 <0 5 09 <0 5 — r <br /> 3124188 1254 3804 009 -- - <br /> 5 <0 5 <05 <05 — — <br /> 6123/88 1283 — 3775 -029 — <0 5 1 3 43 2 2 — - <br /> 9l29l88 1301 — 3757 -018 -- <0 5 <0 5 <0 5 <0 5 — — <br /> 2122/89 1246 -- 3812 055 <100 1 4 <05 <0 5 18 <br /> _ — <br /> 6121189 1237 — 38 21 009 520 360 0 8 21 36 — <br /> 9118189 12 88 — 3770 -0 51 27 000 250 1,200 570 7,100 _ <br /> 12/27/89 1268 — 3790 0 20 <50 3 4 <03 13 14 — — <br /> 4/18/90 1284 — 3774 -016 13 21 1 5 16 16 _ T <br /> 10/16/90 -- -- -- <50 1 <05 2 2 - <br /> 10/19/90 1310 -- 3748 — - <br /> 1/10191 1278 3780 032 <50 24 <05 57 23 _ - <br /> 4110/91 1252 -- 3806 026 73 1 3 <0 5 48 <0 5 <br /> 7/10/91 1295 -- 3763 -0 43 90 2 <0 5 47 17 — N <br /> 9124191 1330 -- 3728 -035 <50 <0 5 <0 5 <0 5 <0 5 ` <br /> 1123192 1277 -- 3781 053 <50 <05 <0 5 <0 5 <0 5 — <br /> 4120192 1258 — 3800 019 <50 <0 5 <0 5 <0 5 <0 5 <br /> 718/92 1290 -- 3768 -032 <50 <0 5 <05 0 6 <0 5 _ <br /> 10/7192 1309 — 3749 -019 <50 <0 5 <0 5 <05 <0 5 <br /> 1118193 — -- - <br /> 4/14193 1231 — 3827 — <50 <05 <o 5 1 5 <0 5 —_ <br /> 8130193 1318 -- 3740 -0 87 <50 <0 5 <0 5 <0 5 <0 5 _ <br /> 10/27/93 1313 — 3745 005 <50 <0 5 <05 <05 <0 5 _ <br /> 2118194 1265 — 3793 048 17 0 6 1 1 0 8 <br /> 5120194 1271 -- 3787 -006 27 0 6 0 3 1 4 <0 5 _ — <br /> i 017/94 1314 -- 37 44 -0 43 <50 <0 5 <05 <0 5 <0 5 — <br /> 12/16/94 1274 — 3784 0 40 <50 <05 <0 5 <0 5 <0 5 -- .. <br /> 2/28/95 1265 -- 3793 009 <50 <05 <0 5 1 <05 _ <br /> 4126195 1290 — 3768 -025 <50 <0 5 <0 5 <05 <05 <br /> 7127195 1322 -- 3736 -0 32 -- — — <br /> 10/26/95 1340 -- 3718 -018 — — <br /> 10/27/95 — — — — <50 <0 5 <0 5 <0 5 <0 5 — <br /> 2112/96 1230 — 3828 — 120 <0 5 <0 5 22 <0 5 <br /> 4/18196 1290 — 3768 -060 -- — <br /> 7/18196 1328 — 3730 -038 <50 <05 <0 5 <05 <0 5 <5 _ <br /> 11/15/96 1374 — 3684 -046 _ <br /> 3114197 NP 1368 -- 3690 006 <50 <0 5 <0 5 <05 <0 5 _ 030 <br /> 7G600-026-001/GW Tables <br />