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- E - <br /> w <br /> 1 <br /> April 15. 1991 <br /> Sampling of Ground-Water Monitoring Wells AGS 86102-5 <br /> Beacon Station No. 492, Manteca, California <br /> TABLE 3 <br /> CUMULATIVE RESULTS OF LABORATORY ANALYSES <br /> OF GROUNDWATER SAMPLES <br /> Beacon Station No. 492 <br /> 470 North Main Street <br /> Manteca, California <br /> (page 2 of 2) <br /> ell Number Ethyl- Total <br /> WellS and Date Benzene Toluene benzene xylenes TPHg fPHd <br /> MW-3 <0.001. 0.008 0.034* NA <br /> 12/04/86 <0.001 0.004 <br /> 05/14/87 0.0021 0.0053 0.0015 0.0114 <br /> 0.119* ITA <br /> 01/14/88 Q.0027 O.O1Q6 0.0024 0.0252 0.100 NA <br /> 06/07/88 0.003 0.035 0.023 0.151 1.17 NA <br /> 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 /> 0.05 NA <br /> i 03/02/89 <0.0045 <0•0005 <0.0005 0.004<00005 <br /> <0.050 NA <br /> 07/20/89 <0.0005 <0.0005 <0.0005 . <br /> 10/11/89 <d.0005 <0.0005 <p.0005 [0.0005 [0..050 NA <br /> 12/13/89 <0.0005 <0.0005 <0.0005 <0.0005 <0.050 NA <br /> <0.050 NA <br /> 03/06/90 <0.0005 0.0009 <p,0005 0.0011 <0.050 <0.050 <br /> 09/27/90 <0.0005 <0.0005 <0.0005 <010005 <br /> 12/18/90 <0.0005 <0.0005 <0.0005 [0.0005 [0.050 NA <br /> RINSATE BLANKS <br /> MW-1 [0.0005 [0.0005 [0.0005 <0.0005 <0.050 NA <br /> 12/l8/9Q <br /> MW-2 <0.0005 <o.o005 <0.0005 <0.050 NA <br /> 12/18/90 <0.0005 <br /> Concentrations given in parts per million <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> * = Total volatile hydrocarbons <br /> TPHd = Tota]. petroleum hydrocarh,ons as diesel <br /> NA = Not analyzed r� <br /> ..... ..... <br /> -_ ,QPPA&Y GSoSOMMS <br /> r. <br />