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0 Pa e7of20 <br /> Table 1 <br /> Groundwater 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 Data Elevation to Water ©evation Elevation Thickness TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft MSL) Change(ft) (ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> ATR-4 3/30/98 NP 1038 -- 0 82 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> (conk) 6/25/98 NP 1040 -002 658 <0 5 <0 5 <0 5 <0 5 <5 0 1 <br /> 9111198 NP 1106 -066 <50 <0 5 <0 5 <0 5 <0 5 <2 5 084 <br /> 12/15/98 NP 1075 0 31 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 1 <br /> 3117199 NP 1053 -- 022 <50 <0 5 <0 5 <0 5 <0 5 <5 0 6 7 <br /> 5/14199 NP 1097 - .0 44 <50 0 591 <0 5 <0 5 <0 5 8,720 2 0 <br /> 9/16/99 NP 1093 004 -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 6 8 <br /> 12/22/99 NP 1089 -- 004 <50 <0 5 <0 5 <0 5 <0 5 857 1 58 <br /> 2129100 NP 1026 0 63 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 3 1 <br /> 67/00 NP 1106 -- -080 <50 <0 5 <0 5 <0 5 <0 5 842 -- <br /> 9/25/00 NP 1124 -- -018 - <50 <0 5 <0 5 <0 5 <0 5 280 070 <br /> 12/29/00 P 1081 -- 043 <50 0 <0 500 <0 500 <0 500 <0 500 636* 4 5 <br /> 3/27/01 P 1064 017 -- <50 0 <0 500 <0 500 <0 500 <0 500 <2 00* 3 1 <br /> 6/20/01 P 1084 -020 <50 <0 50 <0 50 <0 50 <0 50 <2 0* -- <br /> 9/12/01 P 1094 -- -010 <60 <0 50 <0 50 <0 50 <0 50 <2 5 24 <br /> 12119/01 P 1078 016 <50 <0 50 <0 50 <0 50 <0 50 <2 0* 159 <br /> 3/14102 P 1078 — 000 -- <50 <0 50 <0 50 <0 50 <0 50 710* 129 <br /> ATR-5 3110/89 48 73 -- 6,600 693 <5 0 327 7 -- -- <br /> 6/29/89 1062 3821 -- -- 2200 490 2 4 280 1 3 — -- <br /> 9/16/89 1098 3775 -046 1,000 68 1 1 63 5 8 -- -- <br /> 12/27/89 1076 37 97 022 2,200 94 2 150 <1 ._ <br /> 4118194 1090 3783 -014 -- 1,900 120 2 6 6 8 140 <br /> 10/16/90 -- -- 1,000 18 47 79 16 -- — <br /> 10/19/90 11 10 3763 __ __ <br /> 1110/91 1084 3789 026 350 71 12 16 2 6 -- - <br /> 4/10/91 1067 3806 0 17 370 46 <0 5 7 <0 5 <br /> 7/10191 1102 3771 -036 1,200 9 5 <0 5 18 16 -- <br /> 9/24/91 1129 3744 -027 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 1/23/92 1078 3795 0 51 180 14 15 15 <0 5 -- - <br /> 4/20/92 1070 3803 008 -- .. _- <br /> 4121/92 -- -- -- 290 16 <0 5 2 <0 5 - -- <br /> 7/8/92 1097 3776 -- -- 240 <0 5 <0 5 0 6 <0 5 -- -- <br /> 10/7/92 1111 37 62 -014 .- __ _- __ <br /> 10/8/92 -- -- -- 160 <0 5 <0 5 <0 5 <0 5 -- -- <br /> 1/18/93 994 38 79 -- _- __ <br /> Projects/ARCO/2093/ReportalTables/gwtables2093 As <br />