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SIERRA <br /> Table 1 Water Level Data and Well Construction Details - Chevron Service Station #9-0959, 103 West 11th Street, Tracy, <br /> California <br /> Well Date DTW TOC GWE Product Screen Sand Pack Bentonite/Grout <br /> ID Measured (ft) (ft) (msl) Thickness* Interval Interval Interval <br /> (ft) <----------------feet below grade-------------------------> <br /> MW-1 12/14/92 1101 9805 8704 0 5-20 3-215 2- 3 <br /> 3/23/93 1027 8778 0 <br /> 6/22/93 1077 8728 0 <br /> 8/13/93 1138 8667 0 <br /> 11/18/93 1108 8697 0 <br /> MW-2 12/14/92 985 9711 8726 0 5- 20 3-215 2- 3 <br /> 3/23/93 9 11 8800 0 <br /> 6/22/93 960 8751 0 <br /> 8/13/93 1010 8701 0 <br /> 11/18/93 982 8729 0 <br /> MW-3 12/14/92 1089 9822 8733 0 55- 19 3-215 2-3 <br /> 3/23/93 1006 8816 0 <br /> 6/22/93 1061 8761 0 <br /> 8/13/93 1103 8719 0 <br /> 11/18/93 1078 8744 O <br /> EXPLANATION NOTES <br /> DTW=Depth to water Top of casing elevations were compiled from the Environmental Assessment <br /> TOC=Top of casing elevation Report prepared for Chevron by Groundwater Technology Inc, January 7 <br /> GWE=Ground water elevation 1993 <br /> msl=Measurements referenced relative to mean sea level <br /> --- = Not applicable Product thickness was measured with an MMC flexi-dip interface probe <br /> 29904T WLD <br /> I <br />