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Table 2 <br />' Pit Water Samples <br /> August 2, 19% <br />' SAIM7LE DEFT H Im,% m E/BENZF. M"R TOLQEN XYLEKE TPH-G TPH-D LEAD <br /> 4000 W 121 so ND 2400 ND ND 1.9 4300 0.7 <br />' 'Om w 12' 40 ND 3200 ND ND 4.5 3600 0.6 <br />' ND =Not Detected at or above the Detection Limit Reported (DLR) <br /> DLR=Detection Limit Reporting Purposes <br /> • Parameters for BTEX& MTBE are ug/t (Micrograms per Titer)=ppb (Parts per Billion) <br />' Parameters for TPH-G, TPH-D, and Lead are mg/l(MMigran s per liter) = ppm <br />' The results in the above table indicate that the water samples with an organic film on top taken <br /> from below the UST's show the presence of petroleum hydrocarbons found in low concentrations <br /> in the tank excavation are primarily m the form of diesel contaminants or diesel range <br /> r - <br /> Baclrill <br />' After the removal of the two underground storage tanks sod samples were collected from the <br /> . native soil in the sidewalls above the soil water interface Due to the presence of impacted soil and <br />' groundwater with an organic film on top immediately surrounding the former underground <br /> storage tanks prevented the tank excavation from being backfiW at the present time <br /> Findings <br />' The soil and water samples collected from the tank excavation at the time of the removal of the <br /> 10,000 gallon diesel tank and the 4,000 gallon gasoline tank reveals the presence of diesel <br />' contaminants within the diesel range in the tank pit water and sod The soil sample data indicates <br /> that a small amount of diesel had been spilled into the backfill area of the former underground <br /> storage tanks at the time of the transfer of fuel from the tanker truck to the underground storage <br /> tank <br />' 4 <br />