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TABLE 1.1
<br /> FIRST SEMIANNUAL 2011
<br /> GROUNDWATER MONITORING AND ANALYTICAL DATA
<br /> Former Unocal#0187
<br /> Chevron Site ID 306415
<br /> 437 East Miner Avene
<br /> Stockton,California
<br /> Sample TPH-DRO with Total
<br /> Well ID Date TPH-DRO silica gel TPH-GRO Benzene Toluene Ethylbenzene Xylenes 1,2-DCA
<br /> (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L) (pg/L)
<br /> U-1 02/18/11 290 <50 <22 <0.5 <0.5 <0.5 <0.5 -
<br /> 05/12111 340 61 <22 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> 08/10/11 260 99 <22 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> U3 02118/11 3,800 2,200 8,200 640 53180 87 -
<br /> 05/12111 150 9,300 480 51 100 110 <0.5
<br /> 08/10/11 2,100 6,200 320 33 59 65
<br /> U-11 02123/11 <50 <22 <0.5 <0.5 <0.5 <0.5 -
<br /> 05/12/11 <50 <50 <22 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> 08/10/11 <50 160 <22 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> U-22 02/18/11 150 <50 <22 <0.5 <0.5 <0.5 <0.5
<br /> 05/12/11 <0.5 <0.5 <0.5 <0.5 <0.5
<br /> U-27A 02118/11 9,100 6,800 25,000 27 420 680 3,400
<br /> 05/1211 3,600 3,300 15,000 22 360 680 1,890 <0.5
<br /> 08/10/11 2,900 1,100 10,000 38 280 520 1,530 <1
<br /> U-27A' 0218/11 31,000 28,000 140,000 1,500 24,000 3,900 26,000 -
<br /> 06/1211 11,000 12,000 140,000 1,300 19,000 3,400 25,800 <10
<br /> 08/10/11 13,000 6,100 110,000 1,300 10,000 4,000 23,500 <5
<br /> U-27B 02118/11 5,100 3,200 37,000 67 1,300 1,500 6,200
<br /> 05/12111 7,300 7,600 41,000 <3 69 1,200 5,410 <3
<br /> 08/10/11 7,900 5,200 40,000 4 160 1,500 6,400 <5
<br /> U-276' 02118111 9,800 6,100 78,000 2,800 10,000 1,800 13,000
<br /> 05/1211 7,200 6,200 130,000 6,400 22,000 3,200 18,000 <25
<br /> 08/10/11 6,000 2,500 80,000 31500 13,000 2,200 13,200 <5
<br /> G:\Aproject\ENV\CHEVRONl OU15-eisen\2 Communication\Conesponeence\Correspondence ChennSummary\Tables 1 1 through 1 5.xlsx 1 ort
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