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` TABLE I <br /> RELATIVE GROUNDWATER ELEVATIONS* <br /> Arts & Artists <br /> 204 East Lodi Avenue, Lodi, California <br /> Depth to Groundwater Relative Groundwater <br /> Relative Elevation <br /> Well No. Casing 10/93 3/94 6/94 10/93 3/94 6/94 <br /> Elevation <br /> ' MW-1 98.16 60.47 57.07 58.93 37.69 41.09 39.23 <br /> MW-3 97.32 ---- 56.80 58.18 ---- 40.52 39.14 <br /> MW-4 98.30 60.75 57.14 59.09 37.55 41.16 39.21 <br /> MW-5 96.78 59.54 56.03 58.21 37.24 40.75 38.57 <br /> ' MW-6 97.60 59.81 56.30 58.42 37.79 41.30 39.18 <br /> MW-7 98.11 60.57 57.16 59.44 37.54 40.95 38.67 <br /> ' MW-8 97.94 60.27 56.77 58.83 37.67 41.17 39.11 <br /> •All measurements in feet <br /> could be collected. It is likelythat MW-3 remains d and groundwater indicated in the <br /> dry <br /> depth measurement was present only in the bottom cap of the well (groundwater had <br /> ' receded beneath the actual screened casing). <br /> ' 3.2 Laboratory Analysis of Water Samples <br /> The water samples were placed In a chilled container and transported under chain-of- <br /> custody to Alpha Analytical Laboratory (AAL) in Ukiah, California. The samples were <br /> analyzed for TPH as gasoline and BTE&X in accordance with EPA methods 8015m and <br /> 602, respectively. <br /> 4.0 FINDINGS <br /> 4.1. Groundwater Elevation and Gradient <br /> The elevation of groundwater in each well was calculated by subtracting the groundwater <br /> depth from the surveyed casing elevation (Table 1). The depth to groundwater at the site <br /> is between 58 and 59.5 feet below surface grade (bsg). Groundwater depth has increased <br />' approximately 2 feet since the March 1994 monitoring. <br /> f 0-14-1A.&s«. <br /> 6 <br />