ARCHIVED REPORTS_XR0008571 - Laserfiche WebLink

Home Browse Search

First Quarter 2003 Groundwater Monitoring Report Eckert Cold Storage,Manteca,California April 23,2003 Page 3 • sampling of MW-1, MW-3, and MW-6. In a fax dated March 21, 2003, Mr. Harlin Knoll of SJCEHD approved this reduction in sampling. The current laboratory analytical results, shown in Table 2, below, are generally consistent with historical laboratory analytical results. Historical groundwater monitoring data are included in Attachment C. Laboratory certificates of analyses and the chain-of-custody for the samples are included in Attachment D. Table 2—Groundwater Sample Laboratory Analytical Results (March 28, 2003) GASOLINE OXYGENATES/ADDITIVES B T E X TPH-G MTBE Other Gasoline Oxygenates/Additives Units: µg/L 4g/L I tg/l- µF/L mglL Pg/L AgIL Analytical Method: 1 8260B 8260E 826013 8260B 8015M 8260B 8260B Sample I.D. 3471-N4W4-3/28/03 <0.5 <0.5 <0.5 <1.0 <0.05 6.2 11 (1,2-DCA) 3471-MW8-3128/03 50 <0.5 15 5.0 0.97 9.0 35(TBA); 1.4(1,2-DCA) 3471-DW-3/28/03 <0.5 <0.5 <0.5 <1.0 <0.05 <0.5 1 <0.5—<5.0 Units: Analytical: • mg/L:milligrams per liter,parts per million(ppm) B,T,E,X=benzene,toluene,ethyl benzene,total xylenes gg/L:micrograms per liter,parts per billion(ppb) TPH-G=total petroleum hydrocarbons quantified as gasoline Gasoline oxygenates/additives= methyl tertiary butyl ether(MTBE),ethanol, tertiary-butanol (TBA), di-isopropyl ether (DIPS), ethyl tertiary butyl ether (MTBE), tertiary amyl methyl ether(TAME), 1,2-dibromoethane(EDB), 1,2- dichloroethane(1,2-DCA) ♦=all other oxygenates/additives were not detected at or above the laboratory reported detection limits FUTURE WORK/RECOMMENDATIONS The SJCEHD has indicated that continued quarterly groundwater monitoring is required at the site. The next quarterly monitoring event is scheduled for June 2003. I CONDOR