ARCHIVED REPORTS_XR0008569 - Laserfiche WebLink

Home Browse Search

• Second Quarter 2003 Groundwater Monitoring Report Eckert Cold Storage,Manteca,California July 2,2003 Page 3 sampling of MW-4, MW-8, and the domestic well; annual sampling of MW-5 and MW-7; and no further 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 (June 5, 2003) GASOLINE OXYGENATES/ADDITIVES B T E X TPH-G MTBE Other Gasoline Oxygenates/Additives Units: uS/L µ&(L µS2 µ$2 mg/L gS/L µSNL Analytical Method: 8260B 82608 8260B 8260B 8015M 8260B 8260E Sample I.D. 3471-MW4-615/03 <0.5 <0.5 <0.5 <1.0 <0.05 4.9 8.1 (1,2-DCA) 3471-MW8-615103 100 0.6 35 6.2 0.87 7.2 26(TBA) 3471-DW-6/5/03 <0.5 <0.5 <0.5 <1.0 <0.05 <0.5 <0.5—<5.0 . Units: Analytical: mg/L:milligrams per[iter,parts per million(ppm) B,T,E,X—benzene,toluene,ethyl benzene,total xylenes pg/U micrograms per liter,parts per billion(ppb) TPB-G=total petroleum hydrocarbons quantified as gasoline Gasoline oxygenates/additives= methyl tertiary butyl ether(MTBE),ethanol, tertiary-butanol (TBA), di-isopropyl ether (RIPE), ethyl tertiary butyl ether (ETBE),tertiary amyl methyl ether(TAME), 1,2-dibromoethane(EDB), 1,2- dicbloroethane(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 September 2003. a CONDOR