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1 <br /> TABLE 6 <br />' GROUNDWATER SAMPLE ANALYSES <br /> (12-9-91) <br /> SAMPLE LOCATION/CONCENTRATION <br />' MW-6 MW-7 MW-8 MW-9 NW-10 MW-11 MW-12 NW-13 BLANK <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br />' B ND ND ND ND ND ND ND ND ND <br /> T ND ND ND ND ND ND ND ND ND <br /> E ND ND ND 8 . 0\ ND ND ND ND ND <br /> X ND ND ND 12.0 ND ND ND ND ND <br />' <br /> TPR-G ND ND ND 0 . 7 ND ND ND ND ND <br /> NOTE: ND Represents none detected <br /> As requested by Mr: Steve Schneider of the San Joa uin Count <br /> Public Health Services Department, the. extraction well (EW-1) <br />' was purged and sampled, January 24 , 1992. Mr. Schneider was <br /> on site to observe the sampling of EW-1. <br /> The results of this sampling activity as well as the results <br />' from the December 25, 1991 sampling episode were presented as <br /> an addendum report in January 1992 . <br /> The groundwater sample was analyzed by a California certified <br /> laboratory (Sherwood Labs Corp. ) using EPA method 602 for BTEX <br /> analysis, with a detection limit of 0 . 3 ug/Kg, and EPA method <br /> 5030/Mod. 8015 for TPH-Gasoline analysis, with a detection limit <br />' of 50. 0 ug/L. (See Table 7 and Appendix B) . <br /> TABLE 7 <br /> GROUNDWATER SAMPLE ANALYSES <br /> ( 1-24-92) <br /> SAMPLE LOCATION/CONCENTRATION <br />' CONSTITUENT EW-1 MDL <br /> (ug/L) (ug/L) <br /> Benzene 450.0 0, 3 <br /> Toluene 10. 0 0. 3 <br /> Ethylbenzene 86 . 0 0. 3 <br /> Xylene 471.0 0. 3 <br />' TPH-Gasoline 8900 .0 50 . 0 <br /> NOTE: ND Represents none detected <br /> STE Project No. 4001 <br />' `� Page 5 <br />