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�e g, a April 15, 1991 Sampling of Ground-Water Monitoring Wells AGS 86102-5 Beacon Station No. 492, Manteca, California . LF. 3 CUMULATIVE RESULTS OF LABORATORY ANALYSES OF GROUND-WATER SAMPLES Beacon Station No. 492 470 North Main Street Manteca, California r (page 1 of 2) Ethyl- Total TPHd Well Number Xylenes TPB9 and Date Benzene Toluene benzene MW-1 24 0.145 0.0569 7.297'* NA 12/04/86 0.077 0.0 17.73* NA 05/014/87 0.158 0.143 0. 305 1.430 01/15/88 0.005 0.088 0.055 0.37b 2.49 NA 21.00 NA 06/07/88 0.12 1.86 0.66 4.50 NA NA 09/06/88 NA NA NA NA NA 12/05/88 NA NA NA O.Q25 0.015 0.272 6.3 NA 03/02/89 0.026 <0.025 <0.015 <O.Q005 <0.050 NA 07/20/89 <0.0005 1.20 NA 10/18/89 0.086 0.0025 0.018 0.130 0.0005 0.100 NA 12/13/90 <0.00010 0.0005 <0.0005 03/06/ 0.013 <0.0005 <0.0015 <0.050 NA 0 <0.0005 <0.0005 <0.050 NA 6/28/90 0.0013 <0.0005 09/27/90 0.0045 D.0010 <0.0005 0.0021 <0.050 <0.050 12/18/90 0.0024 0.0006 0.0009 0.0023 0.064 NA 12/18/90 0.054 0.132 0.061 0.829 1.829* NA 12/04/ 4.475 '7.495* NA 05/14/87 0.725 3.086 0.00 11.60 NA 01/15/88 0.031 0.068 0.006 0.264 06/07/88 0.015 0.200 0.044 0.310 1.26 NA 09/06/88 0.0015 0.001 <0.0005 0.0063 0.03 NA 12/05/88 0.0014 . 0.0035 0.04 <00005 <0.0005 NA 03/02/89 <0.0005 <0.0005 <0.0005 <0.001 0.06 NA 07/20/89 <0.0005 <0.0005 <0.0005 <0.0005 <0. 0 NA 1 0.024 0.052 0/11/89 0.018 0.007 0.33000 �1A 05 <0.0005 <0.0005 <0.0005 0.053 NA <0.00 <0.0005 0.0007 <0.050 NA 1x/013/89 03/06/90 <0.0005 0.0005 0.0006 <0.050 NA 06/28/90 0.0019 <0.0005 <0.0005 0.074 <0.05 09/'17/90 0.0065 0.0014 0.0005 0.0028 l 1 0,0007 0.0046 0.056 NA 2/18/90 0.0024 <0.0005 See notes on page 2 of 2 APPlied 10e0systems � � -