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' TABLE 3 <br /> GROUNDWATER SAMPLE ANALYSES <br />' (5-20-91) <br /> SAMPLE LOCATION/CONCENTRATION <br />' CONSTITUENT MW-10 MW-11 MW-12 MW-13 EW-1 <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br />' Benzene ND ND ND ND 330.0 <br /> Toluene ND 0 . 3 ND 0. 3 24 . 0 <br /> Ethylbenzene ND ND ND ND 240.0 <br /> Xylene ND 0 .6 ND 0.6 1200. 0 <br />' TPH-Gasoline ND 190 .0 ND ND 7200. 0 <br /> EPA Method 601 <br />' 1,1-Dichloroethene ND ND ND 2 . 0 ND <br /> 1,2-Dichloroethane ND 0.7 9.0 33 . 0 15 .0 <br /> Trichloroethylene ND ND ND 8 . 0 ND <br /> . Chlorobenzene ND ND ND 2 . 0 ND <br />' Tetrachloroethene ND ND 0.7 ND ND <br /> NOTE: ND Represents none detected <br />' On June 24 , 1991, BTS performed the quarterly sampling of <br /> monitoring wells 1 through 9 . The results of this sampling <br /> episode are summarized as Table 4 . <br /> TABLE 4 <br /> GROUNDWATER SAMPLE ANALYSES <br /> (6-24-91) <br /> I <br /> SAMPLE LOCATION/CONCENTRATION <br /> i <br /> MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-9 <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> B 22.0 0.5 39 . 0 7400.0 230 . 0 ND ND 0. 4 300 .0 <br /> T ND 0. 3 ND 7000.0 86 . 0 ND ND 0. 64 190.0 <br /> E 64.0 ND 200 . 0 970. 0 0 . 4 ND ND 1.1 180.0 <br /> X 28.0 1. 3 81. 0 5700 .0 53 .0 ND ND 15 .0 240.0 <br /> TPH-G 1300 .0 ND 4300 . 0 54000 . 0 880. 0 ND 79. 0 140 .0 3900.0 <br /> NOTE: ND Represents none detected <br /> On September 25, 1991 , BTS performed the quarterly sampling <br /> of monitoring wells 6 , 10 , 11, 12 , and 13 . Water levels in <br /> the other monitoring wells was not sufficient to allow <br /> purging and sampling. The results of this sampling episode <br /> are represented as Table 5 . <br /> 6 <br /> STE Project No. 4001 <br /> Page 3 <br /> I <br />