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% i <br /> Table 1 <br /> Groundwater Analytical Data <br /> Parklrtson's Arco <br /> 3250 West Hammer Lane <br /> Stockton,California <br /> Top of <br /> Casing Depth to Groundwater TPH as Ethyl- <br /> Sample Date Elevation Water Elevation Gasoline Benzene Toluene benzene Xylenes MtBE DIPE ETBE TAME TBA <br /> Identlfrcation Sampled (MSL) (feet bgs) (MSL) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/1) (ug/l) (ug/1) (ug/l) <br /> MW-4 07/29/02 4 80 til 1328 -848 <50 1 1 <0 3 <0 3 <0 6 14,000 <5 0 8 8 160 <50 <br /> 10/07/02 14 12 -932 <50 <0 30 <0 30 <0 30 <0 60 9,600 <5 0 <5 0 110 140 <br /> 01/02/03 1356 -876 <50 33 0 73 <0 30 1 1 14,000 <5 0 <5 0 <5 0 <50 <br /> MW-5 07/29/02 5 13 til 13 61 -848 <50 <0 3 0 9 <0 3 12 18,000 <25 <25 150 5,700 <br /> 10/07/02 1440 -927 <50 <0 30 042 <0 30 <0 60 29,000 <250 <250 <250 5,600 <br /> 01/02/03 1387 -874 <50 <0 30 038 <0 30 <0 60 41,000 <5 0 <50 230 12,000 <br /> ug/1 Micrograms per liter RIPE Dl-isopropyl ether ETBE Ethyl tert-butyl ether <br /> MSL Mean sea level TPH Total petroleum hydrocarbons TAME Tert-amyl methyl ether <br /> bgs Below ground surface MtBE Methyl tert-butyl ether TBA Tert-butyl alcohol <br /> 111 Well casing elevations surveyed by Morrow Surveymg on 712102 <br /> tz�Sample contained compounds in the gasoline range,but the chromatogram pattern was not consistent with the expected pattern <br /> Shaw Environmental Inc <br /> N\mncfp]1Projects\Pro)ects1860104011A10 t0712gtr03 112712003 <br />