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C.0'0 First Quarter 1998 Groundwater Monitoring Report <br /> Moore Petroleum,Inc.,5491 'T'Street,Banta,CA <br /> Page 3 <br /> Groundwater Samplins and Analysis <br /> On January 16, 1998, Apex personnel collected groundwater samples from monitoring wells MW- <br /> 1 and MW-4 in accordance to the Apex SOP included as Appendix A. The samples were <br /> submitted, under chain-of-custody documentation, to California Laboratory Services of Rancho <br /> Cordova, California, a state-certified analytical laboratory. The samples were analyzed for <br /> concentrations of total petroleum hydrocarbons, as gasoline and diesel, by Modified EPA Method <br /> 8015; benzene, toluene, ethylbenzene, total xylenes and MTBE by EPA Method 8020. The <br /> analytical results are summarized in Table 2. The laboratory analytical reports and chain-of- <br /> custody form are included in Appendix B. <br /> RECOMMENDATIONS <br /> i <br /> Apex submitted a workplan for excavation of petroleum-impacted soil and removal of petroleum- <br /> impacted groundwater dated September 10, 1997. SJCEH responded to our workplan with a <br /> letter dated October 29, 1997. Apex is currently in process of seeking pre-approval from the <br /> State Water Board UST Clean-Up Fund (The Fund). Once The Fund pre-approves the <br /> excavation and removal of petroleum-impacted groundwater, Apex will then commerce with the <br /> f y' excavation. <br /> REPORT DISTRIBUTION <br /> Apex submitted copies of this report, in final form, to: <br /> 1. Ms. E. Thayer <br /> Central Valley Regional Water Control Board <br /> 3443 Routier Road, Suite'A' <br /> Sacramento, California 95827-3098 <br /> 2. Ms. M. Lagorio <br /> 1 San Joaquin County Environmental Health Division <br />' Post Office Box 2009 <br /> Stockton, California 95201 <br /> i <br /> 4 s <br /> JY:D:1_PROJECTIE'SIERA02.004-Moore Petroleum,BantalQmr0198_CRIQMR0198.doc <br /> i <br />