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TABLE 1-Continued <br /> ® HARNEY LANE SANITARY LANDFILL <br /> FIRST QUARTER 2013 GROUNDWATER MONITORING <br /> Units m /L unless noted <br /> Sampling MW-4 MW-5 MW-6 <br /> Designation <br /> Resampled Resampled <br /> Date Conc. Date Conc. 2/1/13 Conc. <br /> Sampling Date 2/1/13 Limit 2/1/13 Limit Limit <br /> 3/1/13 3/1/13 <br /> Volatile Organic Compounds(ug/L) <br /> Benzene 1.1 0.58 detect ND NS detect ND detect <br /> Toluene 1.5 1.1 detect ND NS detect ND detect <br /> Eth lbenzene 0.17* 0.16' detect ND NS detect ND detect <br /> Total Xylenes 0.82* 0.93* detect ND NS detect ND detect <br /> Tetrachloroethene ND NS detect 0.29* 0.25* detect ND detect <br /> Dichlorodifluorome ND NS detect 0.96 0.79 detect ND detect <br /> thane <br /> All Other ND NS detect ND NS detect ND detect <br /> Compounds <br /> NA=Not Available NR=Not Required Incr=Increasing NL=Not Listed <br /> ND=Not Detected NS=Not Sampled Decr=Decreasing <br /> [1]Not established due to>50%non-detects <br /> [2]Not established statistically due to significant increasing trend. Concentration limit from WDRs. <br /> [3)Not established statistically due to less than required data for calculation. <br /> *=Trace concentration(estimated value) <br /> {}Analyte was detected in one or more lab blanks. <br /> ® Underlined values indicate a concentration limit exceedance. <br /> Bold values indicate a detected organic compound. <br /> Conc.Limit as calculated by Sanitas using Historical Data. <br /> Harney Lane Sanitary Landfill Department of Public Works/Solid Waste <br /> 1"Semester 2013 Groundwater Monitoring Report County of San Joaquin—July 15,2013 <br />