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TABLE 1 (continued) <br /> Casing Depth Groundwater LPH Concentration { g j) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft ms]) (ft) (ft ms]) (ft) Benzene Toluene benzene Xylenes. TPH-g MTBE <br /> i <br /> V4 12/30/93 938 2926 -1988 000 10,000 36,000 4,800 26,000 150,000 <br /> 02/17/94 2889 -1951 000 -- -- -- -- -- -- <br /> I <br /> 05/10/94 2854 -1916 002 Not sampled-LPH <br /> 08/02/94 2993 -2055 002 Not sampled-LPH <br /> 11/01/94 3034 -2096 000 -- -- -- -- --02/17/95 2782 -1844 000 -- -- -- -- --05/11/95 25 12 -1574 Sheen -- -- -- -- -- -- <br /> 08/24/95 -- -- <br /> 10/19/95 2685 -1747 Sheen -- -- -- -- -- -- <br /> 02/13/96 2474 -1536 Sheen -- -- -- -- -- -- <br /> 04/18/96 22.36 -12.98 Sheen -- -- -- -- -- -- <br /> Trip 04/18/96 <0 5 <0 5 <0.5 <0 5 <50 <2 5 <br /> Blank <br /> Rinse 04/18/96 <0 5 <0 5 <0 5 <0 5 <50 <2.5 <br /> Blank <br /> a Water in well may be residual water in end cap <br /> ft msl Feet relative to mean sea level <br /> LPH Liquid-phase hydrocarbon <br /> MTBE Methyl t-butyl ether <br /> TPH-g Total Petroleum Hydrocarbons as gasoline <br /> pg/L Micrograms per liter <br /> -- Not measured,not sampled,or not analyzed <br /> XLs73942Q496 TI I Page 22 <br />