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low levels in MW-6 All other monitoring well samples indicated non detectable levels <br /> for analyzed constituents These data indicate a decrease in constituent levels as <br /> ' compared with previous sampling event data <br /> 7.0 RECOMMENDATIONS <br /> Based upon the results of the additional soil and ground water investigation, and the <br /> results obtained from this quarterly sampling event, AGS believe that the lateral and <br /> vertical extent of gasoline contaminated ground water have been adequately defined <br /> ' AGS recommends continued quarterly monitoring of the six monitoring wells sampled <br /> during this event to assess ground water quality over time The next regularly scheduled <br /> ' quarterly sampling event will take place in late September, 1996 <br /> ' <br /> 8.0 SIGNATURES AND CERTIFICATION <br /> This project was performed by American Geological Services, Inc in accordance with <br /> ' accepted geologic and hydrologic standards of the State of California in effect at the time <br /> of this investigation Additional work or sampling at this site may generate data that <br /> could lead to a change of opinion regarding site conditions Consequently, no warranty is <br /> made, either expressed or implied, with respect to the geologic, hydrologic or chemical <br /> conditions beneath the Tracy Cold Storage site <br /> This report was prepared by *9��`DI;0G�o <br /> ED G���O � {0. <br /> ;u <br /> Ross R Grunwald { ` <br /> �1 ® 269 <br /> • Ross R Grunwald s <br /> 3948 <br /> OP CAV,71� G <br /> 2 <br /> F CA��� ? Z3 <br /> / /J� <br /> Ross R Grunwald, PhD Date <br /> California Registered Geologist#3948 <br /> 1 California Certified Hydrogeologist#269 <br /> 1 <br /> American Geological Services, Inc <br /> CA95 DE-029 <br /> 12 <br />