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TABLE A3 <br /> 16 (Continued) <br /> RESULTS OF ANALYSES OF GROUNDWATER SAMPLES <br /> FROM MONITORING WELLS AT 162 and 153 EAST 11th STREET,TRACY <br /> Well Sampling TPH TVH Benzene Toluene Ethyl- Total <br /> No Date (as Gas) benzene Xylenes <br /> PPb Ppb ppb ppb ppb Ppb <br /> ULT 4 718/93 370 - NO ND NO NO <br /> ULT 5 4/14/87 12 000 3200 200 200 100 300 <br /> 7/23/87 - 1102 43 6 83 70 <br /> 713191 1,000 89 18 15 52 <br /> 9/30191 2000 - 78 68 64 17 <br /> 12/31/91 600 22 26 34 49 <br /> 3128/92 920 - 74 ND 2 9 32 <br /> 718/93 180 4 5 NO 18 28 <br /> ULT 6 4114187 6 000 39 100 1 400 1 100 800 3200 <br /> 7123187 131 3 1 8 10 <br /> 713191 540 - 28 38 21 15 <br /> 9130/91 1900 - 30 1 9 26 25 <br /> 12/31/91 690 - 99 ND 13 12 <br /> 3/28192 830 - 28 07 15 12 <br /> 7/8/93 500 - 34 13 06 65 <br /> ULT 7 4114/87 8 000 400 6 20 8 5 <br /> 7/23/87 - 570 8 13 5 51 <br /> 713/91 700 - N D 41 34 99 <br /> 9/30/91 440 1 5 23 07 32 <br /> 12/31/91 190 - 26 15 ND 26 <br /> 3128192 760 - 1 4 33 19 68 <br /> 718/93 200 - 21 06 ND 16 <br /> ULT 8 4/14/87 2 000 0 ND ND NO NO ND <br /> 7/23187 - ND ND ND ND ND <br /> 7/3/91 Pluged Pluged Pluged Pluged Pluged Pluged <br /> 9130/91 Pluged Pluged Pluged Pluged Pluged Pluged <br /> 12/31/91 Pluged Pluged Pluged Pluged Pluged Pluged <br /> 3128192 Pluged Pluged Pluged Pluged Pluged Pluged <br /> 718193 ND ND ND ND ND <br /> ULT 9 7/23/87 - 31 619 3 954 10 526 1,627 8,358 <br /> 7/3191 13000 610 1400 310 13,000 <br /> 9130191 7500 - 600 570 140 7 500 <br /> 12131/91 7200 - 520 570 120 7200 <br /> 3/28/92 17000 = 860 1 000 850 17 000 <br /> 7/8193 1900 240 190 34 240 <br /> ND= Not detectect above the Method Detection Limit <br /> = Not analyzed for the subject analyte <br />