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r - im. <br /> 7 <br /> Table 2A <br /> Historical Groundwater Monitoring and Analytical Data <br /> Southland Store No 20304 <br /> 455 Grant Une Road Tracy,California <br /> Well iD! Ethyl- MTBE Ist;4Ned <br /> Elevation Eate:tlenzene Toluene Benzene Xyiene TPH-G TPH-b f=ecal TSA DIPE ETBE TAME Oxygen DTIV 5P7 WfE <br /> oc rL IL IL n n 1L Coliform !E. r� 1L tl n tl m lL teat (feet), feet <br /> GWS-9 cont 09119/0 ND NO ND ND ND — 482 000 2121 <br /> INF 1213/95 NA NA NA NA NA �- 367 000 2242 <br /> 03120/ 62 as 34 82 <50 — <10 45 2192 000 411 <br /> OVIS19B423 009 21 <br /> 09/17/96 c0 3 <03 <0 3 <0 6 <50 .00 486 000 2117 <br /> 17178!96 26 <br /> 03/25/97 <03 <0 3 <0 3 <0 6 <50 <10 358 0 09 22 <br /> 45 <br /> 2543 051/2/97 416 000 27 <br /> 27 <br /> 08/11/97 — 486 000 20 5 <br /> 1111'[137 421 800 2 <br /> =5198 <br /> 255 000 2288 <br /> 05!15198 10 322 0 00 2221 <br /> L1015198 446 000 20 9 <br /> 03/17/99 0,999 <p 3 0,919 <0,6 s50 <5 <br /> <20 1 c5 i5 <B 815 3571 008 21 <br /> 1211819B 16 1.7 43 7.1 129 <10 321 0-00 <br /> 2481 03r25197 <0 3 <03 <0 3 <0 6 <50 <10 290 000 2191 <br /> 05/92/97 3 d$ 0 00 2135 <br /> 08/11197 423 000 2058 <br /> 11111197 361 000 2120 <br /> 02/25198 180 000 2301 <br /> 05115MB 9 5 253 000 22 <br /> 10/15/98 381 000 21 <br /> 03!17199 <0 3 -031 <0 3 <0 6 c50 <5 120 <5 <y <5 020 388 4 00 20 <br /> GWE-3 <br /> 94!16196 00 91 120 ISO 3,200 23 343 000 <br /> 2528 03/25/97 <03 <03 <0 3 <0 6 <50 — <10 3 4 000 27 <br /> 85 <br /> 0512197 4,06 000 2122 <br /> 08/11/97 — 470 000 20 <br /> 58 <br /> 11119197 <br /> 07125/98 405 000 2123 <br /> pened Extraction Well 4/98 <br /> 2 30 000 22 98 <br /> EXPLANATION. <br /> TPH-G=Total petroleum hydrocarbons as-gasoline WTE =Water table elevation in feet above mean sea levet <br /> TPH-D=Total petroleum hydrocarbons-as-diesel fuel NA =Not available <br /> pg/L=Micrograms per Iger ' =Monitoring well MW-7 was abandoned March 1969 <br /> DTW =Depth to groundwater INF=Groundwater was collected from the ir>llueM port of the remediation system <br /> SFT =Separate phase hydrocarbon ttuckness TBA=tert butanol <br /> --=Not analyzed not monitored DIPS=diisopropyl ether <br /> MTBE Methyl tert butyl ether ETRE=ethyl teal-butyl ether <br /> ND=Not detected at or above method detection tants TAME=tert arrylmethyl ether <br /> Note Data from November 1986 to September 1992 were taken from October 15 1992(Afton Geoscience) <br /> 20304TB1 WK4 Page'15 of 15 <br />