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t <br /> May 20, 1991 <br /> Quarterly Ground-Water Monitoring AGS 86102-6 <br /> Baacon Station No. 4°2, Manteca, Ca1'tornia <br /> TABTIE 3 <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 2 of 2) <br /> Well Number <br /> Ethyl- Total Ig TPHd <br /> and Date Benzene Toluenes benzene Xylenes TPI <br /> ..0-3 10.003 O.COB 0.034* NA <br /> 12/04/86 <0.001 0.004 0.119* NA <br /> 05/14/87 0.0021 0.0053 0.0015 0.0114 <br /> 01/14/8g 0.0027 O.G105 0.00'4 O�Ci7i2 0.100 NAA <br /> 06/07/88 0.003 0.035 0.023 <br /> 10.02 NA <br /> 09/06/8B <0.0005 <0.0005 <0.0005 I <br /> 10.0005 <D.02 NA <br /> 12/05/88 <0.0005 <O0005 10.0005 0.004.0005 <0.0005 0.05 NA <br /> 03/02/89 <0.0005 10. <0.050 NA <br /> 07/20/89 <0.0005 <0.0005 <0.0005 [0.0005 <o.050 NA <br /> 10/11/89 <0.0005 <0.0005 [0.0005 <0.0005 <0.050 NA <br /> 12/13/89 <O.0005 <0.0005 10.0005 [0.0005 <0.050 NA <br /> 03/06/90 <0.0005 0.0009 <0.0005 0.0011 10.050 10.050 <br /> 097/90 <0.0005 <O.0005 <0.00c35 10.0005 10.050 NIA <br /> /2 <br /> 12/18/90 <0.0005 10.0005 10.0005 <0.0005 0.020 NA <br /> 03/29/91 <0.0005 <0.0005 <U.0005 10.0005 <br /> concentrations gjven in parts per million <br /> TPHg W Total petroleum hydrocarbons as gasoline <br /> * _. Total volatile hydrocarbons <br /> TPHd = Total petroleum hydrocarbons as diesel <br /> NA = Not analyzed _ <br /> I <br /> APP1i49d GenSyStOn7S - <br />