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i First Quarter 2002 Groundwater Monitoring Report <br /> Moore Petroleum Bulk Plant,5491 F Street,Banta,California <br /> Page 6 <br /> • VEW-2: TPHg increased significantly from 8,200 ug/L last quarter to 33,000 ug/L <br /> this quarter. All other constituents were within historical range. <br /> • RW-2: TPHg increased from 770 ug/L last quarter to 5,500 ug/L this quarter and all <br /> other constituents were within historical range. Toluene was detected this quarter at <br />! 22 ug/L. <br /> The Rhodes domestic well was sampled on January 31, 2002, February 11, 2002, and March 26, <br /> 2002 . Concentrations were non-detect for all analyzed constituents. <br /> Apex recommends continuing quarterly groundwater monitoring to confirm laboratory data and <br /> monthly groundwater sampling of the domestic well. The next monitoring event is scheduled for <br /> May 2002. <br /> Apex has received an Authority to Construct(A/C)permit from the SJVUAPCD for anew vapor <br /> extraction unit and treatment system. System installation and start up is pending delivery of the <br /> system. It is anticipated that the system will be installed and started in May 2002. <br /> i - <br /> i <br /> Z <br /> r <br /> r <br /> r <br /> { <br /> r <br />