Laserfiche WebLink
Fourth Quarter 1997 Status Report - Former Discovery Chevrolet <br /> `= January 15, 1998 <br /> t-amylmethyl ether (TAME)] were detected in any of the groundwater samples. These data <br /> have been used to construct a TPHg/Benzene/MTBE Concentration Map (Figure 4). <br /> Disposition of Well Purger <br /> Purge water generated during the fourth quarter 1997 sampling event was discharged to <br /> properly labelled drums and stored at the site pending disposal. <br /> DISCUSSION <br /> During the fourth quarter 1997 groundwater was measured 0.30 to 0.34 feet above levels <br /> measured during the third quarter 1997. During this quarter, groundwater appeared to flow <br /> toward the north at a gradient of 0.004 ft/ft. These data appear generally consistent with <br /> historical monitoring data.. <br /> TPHg, benzene, or MTBE were not detected in wells MW-4 or MW-5. Concentrations of <br /> TPHg, benzene, and MTBE detected in wells MW-1 and MW-2 during the fourth quarter <br /> 1997 increased from concentrations detected in the previous quarter. The presence of <br /> oxygenate compounds .in any of the samples was not indicated by EPA Method 8260. <br /> Additional analyses for oxygenate compounds is not warranted. <br /> NEXT QUARTER'S ACTIVITIES <br /> Activities planned for the first quarter.1998 at the subject site include: <br /> • Monitor DTW in all wells. Purge and sample wells MW-1 through MW-5, and <br /> analyze the groundwater samples for TPHg and BTEX.. Samples will not be analyzed <br /> for MTBE or other oxygenate compounds. <br /> 8146.04-4 4 <br />