Laserfiche WebLink
Third Quarter 1998 Status:Report - Former Discovery Chevrolet <br /> ' September.14 1998 <br /> Disposition of Well Pure Water <br /> Purge water generated during the'second quarter 1998sampling event was discharged to <br /> properly labelled drums and stored at the site`pending disposal. ' <br /> t ` DISCUSSION <br /> During the .third `quarter 1998 groundwater' was :measured 0.51 to 0.65 feet below levels <br /> measured during the second quarter 1998. During,the,third quarter; groundwater.appeared <br /> to flow toward the north at-a gradient-of 0.904 ft/ft. These data appear generally consistent <br /> with'historical.monitoring.data. <br /> TPHg, benzene, ,or MTBE were'•not detected in wells MW-3, MW-4 or .MW- <br /> 5. <br /> Concentrations of TPHg and,benzene detected' in,welI MW-2 remained constant with <br /> concentrations.detected in the previous quarter. MTBE was detected in well MW-2 during <br /> the third quarter,-1998 by EPA Method 8020, however, analyses of samples from this well' <br /> : in the past by EPA Method 8260 have,never detected MTBE concentrations above 6 ppb. <br /> NEXT. QUARTER'S ACTIVITIES ; <br /> Activities planned for the fourth quarter -199$ at the subject site include: <br /> a <br /> b Monitor DTW in all wells. Purge and sample wells MW-2 through MW=S. Analyze <br /> k the 'groundwatersamples for TPHg,' BTEX, and .MTBE by EPA Method 88015 . <br /> 'Mod./8020. This sampling event has been scheduled with Mr. Jeffrey Wong of <br /> SJCEHD to be performed on October 1, 1998. - <br /> »`��_, 948146.05-7 4 <br />