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TABLE 4 <br /> SUMMARY OF GROUNDWATER ANALYTICAL RESULTS (BTEX)' <br /> US CAN—WELTY ROAD <br /> 35275 Welty Road <br /> Vernalis,California <br /> Concentrations inµg/L <br /> Boring ID Sample Method I Date Collected Benzene Toluene Ethylbenzene Total Xylenes <br /> Groundwater Monitoring(SAIL,2009) <br /> MW-1 ggw 10/1/1996 <1,000 <1,000 <1,000 <1,000 <br /> MW-2 ggw 7/21/2005 <0.5 <0.5 <0.5 <0.5 <br /> MW-3 ggw 11/8/2006 <0.5 <0.5 <0.5 <1.5 <br /> MW-4 ggw 10/18/2005 <0.5 <0.5 <0.5 <0.5 <br /> MW-5 ggw 11/8/2006 <0.5 <0.5 <0.5 <1.5 <br /> WFSMW-1 ggw 11/8/2006 <0.5 <0.5 <0.5 <1.5 <br /> Number of Samples: 35 35 35 35 <br /> Number of Detections: 1 0 3 4 <br /> Maximum Detect(gg/L): 0.60 --- 5.9 1.9 <br /> Maximum Nondetect(gg/L): 1,000 1,000 1,000 1,000 <br /> Abbreviations: <br /> bgs=Below ground surface <br /> BTEX=Benzene,toluene,ethylbenzene,and total xylenes <br /> DD=Depth Discrete(feet bgs) <br /> EPA=United States Environmental Protection Agency <br /> ggw=Grab groundwater <br /> ID=Identification <br /> SAIC=SAIC Energy,Environment&Infrastructure,LLC <br /> gg/L=Micrograms per liter <br /> ---=Not Available <br /> Notes: <br /> 1.Results in bold are above laboratory detection limits. <br /> 2.Samples were collected by Radian International and analyzed by Core Laboratories of Anaheim,California,for <br /> BTEX using EPA Method 8020. <br /> 3.Samples were collected by Geomatrix Consultants Inc.and analyzed by Friedman and Bruya,Inc.of Seattle, <br /> Washington,for BTEX using EPA Method 8260B. <br /> 4.Samples were collected by SAIC and analyzed by Lancaster Laboratories of Lancaster,Pennsylvania,for BTEX <br /> using EPA Method 8260B. <br /> Page 2 of 2 SAIE. <br />