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TAP 1 0 <br /> GROUNDWATER DATA t <br /> THRIFTY OIL STATION #172, STOCKTON, CA <br /> DATE ANALYTICAL PARAMETERS DEPTH TO DEPTH TO PRODUCT CASING GROUNDWATEIR <br /> SAMPLED TPH BENZENE TOLUENE EthylBenxene }XYLENE MTBE GROUNDWATER PRODTJCT THICKNESS ELEVATION ELEVATION <br /> (ug,L) I (ug/L) (ug1L) (ug/L) (UgA-) (u91L) (feet} (feet) 0"t) (feet} (feet) <br /> MONITORING WELL# VW-6A <br /> 02/18/99 t 200 42 21 <03 87 7 100 33 60 NP 000 <br /> 05/20/99 - - - - <br /> 08/18199 - DRY <br /> 11/10/99 - <br /> 02/23/00 3526 NP 000 <br /> 05/10/00 DRY - <br /> 08/18/00 - 3342 NP 000 <br /> MONITORING FELL#VW-6B <br /> 02/18/99 1 400 60 20 <0 3 110 8,200 3360 NP 000 - <br /> 05/20/99 - - - - - <br /> 08/18/99 DRY <br /> 11/10/99 <br /> 02/23/00 DRY <br /> 05/10/00 DRY <br /> 08/18/00 DRY <br /> NOTE ND=Nondetectable <br /> "=Not analyzed I Not available Benzene toluene ethlybenzene and xylene analyzed by EPA method 8020 <br /> NP=No free hydrocarbon product Total petroleum hydrocarbons(TPH)analyzed by EPA method 8015 modified for gasoline <br /> MTBE by 8020 or 8020/8260 Methyl tert Butyl Ether(MTBE)analyzed by EPA method 8020 or 8260 <br /> On 8118100 BTEX and MTBE analyzed by EPA Method 8260B <br /> i <br /> 172TAB 1 XLS Page 9 of 9 9lizvo <br />