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June 2, 1992 __ RMZAW/Wff7 <br /> Beacon Station No. 492, Manteca, California <br /> TABLE 4 <br /> CUMULATIVE RESULTS OF LABORATORY ANALYSES <br /> OF GROUND-WATER SAMPLES <br /> Beacon Station No. 492 <br /> 470 North Main Street <br /> Manteca, California <br /> (page 3 of 3) <br /> Well Number Ethyl- Total <br /> �- and Date Benzene Toluene benzene Xylenes TPHg TPHd <br /> MA-3 <br /> 4 12/04/86 <0. 001 0. 004 <0. 001 0. 008 0. 034* NA <br /> 05/14/87 0. 0021 0. 0053 0. 0015 0. 0114 0. 119* NA <br /> 01/14/88 0 . 0027 0. 0106 0. 0024 0. 0252 0. 100 NA <br /> 06/07/88 0. 003 0. 035 0. 023 0. 151 1. 17 NA <br /> 'r 09/06/88 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 02 NA <br /> 12/05/88 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 02 NA <br /> 03/02/89 <0. 0005 <0. 0005 <0. 0005 0. 004 0. 05 NA <br /> 07/20/89 <0. 0005 <0. 0005 <0.0005 <0. 0005 <0. 050 NA <br /> 10/11/89 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 NA <br /> 12/13/89 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 NA <br /> "WW, 03/06/90 <0. 0005 0. 0009 <0. 0005 0. 0011 <0. 050 NA <br /> 09/27/90 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0.050 <0. 050 <br /> 12/18/90 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 NA <br /> 03/29/91 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 020 NA <br /> �.. 06/21/91 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 NA <br /> 10/01/91 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0 . 050 NA <br /> 12/13/91 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 NA <br /> 02/26/92 <0. 0005 <0. 0005 <0. 0005 <0. 0005 <0. 050 <0. 1 <br /> MA-4 <br /> 02/26/92 <0. 0005 <0. 0005 <0. 0005 <0.0005 <0. 050 <0. 1 <br /> Concentrations given in parts per million <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> * = Total volatile hydrocarbons <br /> TPHd = Total petroleum hydrocarbons as diesel <br /> NA = Not analyzed <br /> s.. <br /> ti. <br /> 0316kear <br /> 86102-7 <br /> L <br />