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Response to Letter October 18, 1990 <br /> Former Texaco Station, Manteca, California AGS 38053-2 <br /> TAB 1 <br /> RESULTS OF CHEMICAL ANALYSES <br /> Former Texaco Service Station <br /> 941 East Yo4mite Avenue <br /> Manteca, California <br /> Sample Sample Ethyl- Total <br /> Number Date TPHg TPH Benzene <br /> s� Toluene benze a Xyle es <br /> W-27-MW1 10/27/88 <0. 02 NA <O. Gi005 0. 0008 [0. 0005 [0. 0005 <br /> W-23-MW1 12/22/89 0. 021 0. 14 <0. 00050 0. 00098 <0. 0050 0. 00070 <br /> W-23-MW1 3/29/90 <0. 02 <0. 100""<0. 0005 <0. 0005 <0.0005 <0. 0005 <br /> W-26"MW1 7/02/90 <0. 02 <0. 100-<0.0005 <0. 0005 <0. 0005 <0. 0005 <br /> W-27-MW2 10/27/89 0. 29 NA 0. 0036 0..0010 0.0037 0. 0110 <br /> W-23-MW2 12/22/89 0. 20 <0. 10 0..6042 0. 00078 0.0015 0. 011 <br /> W-22-MW2 3/29/90 2.9 1.7 0. 044 0. 0019 0. 025 0. 122 <br /> W-25--MW2 7/02/90 <0. 02 '0. 28 <0. 0005 <0. 0005 <0. 0005 <0.0005 <br /> W-27-MW3 10/27/88 0. 08 NA O. N21 <0. 0005 <0. 0005 0.0039 <br /> W-24-MW3 12/22/89 0. 025 <0. 10V'' <0. bOd5O <0. 00050 <0.00050 <0. 00050 <br /> W-23-MW3 3/29/90 <0. 02 <0. 10V'<0. �005 [0. 0005 <0.0005 <0. 0005 <br /> W-25-MW3 7/02/90 <0.02 0.48 <0. 005 <0. 0005 <0. 0005 <0. 0005 <br /> Results in parts per million (ppm) . <br /> TPHg = Total petroleum hydrocarbons s gasoline <br /> TPHd = Total petroleum hydrocarbons as diesel <br /> < = Less than the detection limit fob the analytical <br /> methods used <br /> Sample designation: <br /> W-26-MW1 <br /> Monitoring well number <br /> L---- Sample depth in feet be ow ground surface <br /> Water sample <br /> Awv�v/ied GeoSystemS <br />