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r W M M M M M M <br /> Table A-1 <br /> Historical Groundwater Analytical Results <br /> San Joaquin County Human Services Agency <br /> Analyte Concentrations(jug/L) <br /> Well Groundwater Total <br /> No Sample Date Elevation(ft) Benzene Ethyl-benzene Toluene Xylene(total) TPH-g TPH-e Lead <br /> 12/10/98 -1643 11 ND(05) ND(05) ND(a5) 75 '- <br /> I <br /> 5118199 -1488 ND(0 5) ND(0 5) N D(0 5) ND(a 5) 99 -- -- <br /> 11/16/99 -1605 ND(05) ND(05) ND(O 5) ND(05) 180 -- -- <br /> 5111100 -1445 ND(0 5) 075 071 74 200 — — <br /> 1112100 -1563 ND(05) ND(05) ND(05) ND(15) 336 — — <br /> 5116101 -1502 056 0 81(05) ND(05) 16 310 -- -- <br /> 215102 -1637 ND(O 5) ND(o 5) ND(O 5) ND(o 5) 120 -- -- <br /> 6/25/02 -1681 ND(O 5) ND(0 5) ND(O 5) ND(05) 120 -- -- <br /> 12/11/02 -1862 ND(o 5) N D(o 5) N Deo 5) N D(0 5) 120 -- -- <br /> 6/10/03 -1812 ND(0 5) ND(o 5) ND(O 5) ND(O 5) 120 -- -- <br /> 1113/04 -1941 ND(O 5) ND(05) ND(05) ND(O 5} 120 -- -- <br /> 6125104 -1902 ND(05) ND(05) NDro5j ND(O 5) ND(50) — <br /> MW-4 8/2191 -3787 8 ND(45) ND(05) ND(05) 520 ND(50) 51 <br /> 4116193 -3704 ND10 ND10 21 NDO0) 82 ND(50) ND3 <br /> 614193 -3644 3 NDO 0) ND(10) ND(10) 96 ND(50) 8 <br /> 8113193 -3645 NDO 0) ND(10) ND(i 0) ND(10) 37J -- -- <br /> 10/7/93 3695 ND(05) ND[05) N Deo 5) N D(05) 140 -- -- <br /> 7/25/95 -28 88 ND(5) ND(5) ND(5) ND(5) ND(500) -- -- <br />