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Table 4 , continued - <br /> Analytical Results of Groundwater Samples=-,Acquired <br /> from Monitoring Well's MW-1 , MW-2., - and MW-.3 at <br /> 275 Grant Line Road , Tracy, CA <br /> Sample Date <br /> - & Depth to TPH-D TPH-G B T E X TOG <br /> Water -( ft ) ( ppb) (ppb) (ppb) (ppa') <br /> MW-3 <br /> 02/05/ 93 N . D . . N . D . N . D. N .D. N . D . ` N .D. N . D. - <br /> 7 . 45 ' <br /> 06/07-28/ 93 N . D. N . D. . �N .-D . N . D . N . D . N.D . . N . D ., <br /> 7 . 34 ' ( 6/7/ 93 ) <br /> 7 . 60 ' { 6/.28/ 93 } <br /> 02/14/94 N . D. N. D . N .D. N . D . N .D. N .D . N .A. <br /> 7 . 36 ' <br /> 06/23/94 N . D. N. D. N .D. N . D. N . D..' N . D . N .A . <br /> 7 . 65 ' <br /> 09/30/94 N . D. N.D . N .-D. N. D . 'N .D.-. N. D . N .A . <br /> 7 . 76 ' <br /> --------------------------------------- ----- M <br /> Method <br /> Detection 50 .50 0 . 5 -0 . 5 .0 . 5 0 . 5 0 . 5 <br /> ,Limit <br /> * The sample acquired from MW-1,-Fon 9/30/ 94 _'was also free of <br /> detectable concentrations of- Total Chromium (method- <br /> Detection <br /> MethodDetection Limit : 0 . 5. ppm) <br /> TPH-D . '. . '"otal' Petroleum Hydrocarbons as Diesel <br /> TPH-G . .. .. Total Petroleum Hydrocarbons as Gasoline. <br /> TOG . . . Total Oil and Grease <br /> BTEX . . . Benzene , toluene, ethylbenzene; total xylenes <br /> ppm. . . Parts per. million a <br /> ppb . . .'Parts per. billion ( 1 • ppm. = 1 , 000 ppb) , . <br /> -N . D. . . . Not detected <br /> N .A. . . . No analysis performed <br /> Page- 9 z . <br />