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7 5 feet a zone in which a very slight musty odor was <br /> present The water bearing layer encountered during <br /> drilling was present between 7 5 and 9 feet and consisted <br /> Of silty fine sand gradually becoming fine sand Discrete <br /> Sall samples were taken at 5 and 7 5 feet bgs <br /> Soil uorings logs for EP-5 , EP-6 , and EP-7 are enclosed <br /> The results of certified laboratory analyses of discrete <br /> soil and grab water samples from each of the three borings <br /> advancea on July 22 , 1994 are summarized in Tables 5 and 6 <br /> Table 5 <br /> Analvticaf Results of Subsurface Soil Samples Acquired <br /> at 2360 East Street , Tracy , CA <br /> July , 1994 <br /> Sample No TPH-D TPH-G B T E X <br /> and Deptn (ppm) (Ppm) (ppb) <br /> ------------ ----------------------------------------------- <br /> E,P-5 @ 5 ' N D N D N D N D N D N D <br /> EP-5 @ 7 5 ' 6 4 460 320 330 390 1200 <br /> EP-6 @ 5 ' N D N D 3 N D N D N D N D <br /> • EP-6 @ 8 ' N D N D N D N D N D N D <br /> EP-7 @ 5 ' N D N D N D N D N D N D <br /> EP-7 @ 7 5 ' N D N D N D N D N D N D <br /> ------ ----------------------------------------------------- <br /> Method <br /> Detection 1 1 5 0 5 0 5 0 5 0 <br /> Limit <br /> ----------------------------------------------------------- <br /> TPH-D Total Petroleum Hydrocarbons as Diesel <br /> TPH G Tota: Petroleum Hydrocarbons as Gasoline <br /> BTEX Benzene , toluene , ethylbenzene total xylenes <br /> PPM Parts oer million, <br /> ppb Parts per billion ( 1 ppm = 1 , 000 ppb) <br /> N D No` detected above method detection limit <br /> Table 6 <br /> Anairt- cal Results of Grab Water Samples Acquired <br /> at 2360 East Street , Tracy , CA <br /> July , 1994 <br /> TPH-D TPH-G B T E X <br /> a -'p' e No (ppb ) (ppb) ( ppb) <br /> --------------------------------- ------------------- ------- <br /> EP-5 380 58 , 000 1.40 150 230 550 <br /> Page 10 <br />