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Ir r r r r r r r r r r r r r r r r r � <br /> TREND ANALYSIS - MW-8D <br /> TPHg/Benzene Concentrations & Groundwater Elevations vs. Time <br /> (Since January 1, 2005) <br /> 5400 and 5606 Pacific Avenue, Stockton, California <br /> 100,000 Chevron Site #306620 (Former Unocal #5098) 0 <br /> Remediation system start-up with SVE using carbon System re-started, July 30, 2008. <br /> for vapor abatement, February 17, 2005. <br /> -10 <br /> 10,000 <br /> .. <br /> -20 <br /> H <br /> c 1,000 -30 = <br /> m <br /> E <br /> m -40 <br /> � w <br /> c <br /> 0 100 c <br /> v o <br /> c -50 <br /> N d <br /> W <br /> 10 -60 <br /> tM <br /> a System shut down for upgrades, <br /> f— December 6, 2007. _ <br /> -70 <br /> C9 <br /> Notes: Non-detect analytical results shown at their detection limit with an open symbol. <br /> Top of casing elevation = 11.62 feet - msl; top of screen elevation = -85.38 feet msl. -80 <br /> 0 J -90 <br /> \oma \oma \o`b <br /> _Cb <br /> O h ^ti C h <br /> ^� ryV <br /> - TPHg -AM-- Benzene —0 Groundwater Elevation •Top of Well Screen <br /> 01231-154 AECOM Environment <br />