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Flag City Chevron 0 6 <br /> 6421 Capitol Avenue,Lodi - 2 - 3 September 2002 <br /> 2. Reduce analysis of methanol and ethanol from quarterly to annually, and eliminate ethylene dibromide and <br /> 1,2-dichloroethane from the monitoring program. <br /> Order#14 of C&A Order No. 5-00-700 required quarterly reporting of groundwater monitoring and sampling <br /> work performed at the Flag City Chevron site. Groundwater samples were to be analyzed for TPHg,TPHd, <br /> BTEX,EDB, 1,2-DCA,MtBE,TBA,DIPE,ETBE, TAME, ethanol, and methanol. Historically,MtBE has <br /> been the dominant chemical in groundwater at this site, and TPHd has been identified sporadically in several <br /> of the multi-level monitoring wells across the site. <br /> Board staff discussed these recommendations with management, and based on your progress in remediating the <br /> shallow groundwater at the Flag City site,we are amenable to revising the quarterly monitoring requirements. <br /> We will prepare a draft monitoring and reporting program and submit it to you under separate cover within the <br /> next 60 days. In the interim, you may discontinue sampling DW-1,and reduce the constituents analyzed from all <br /> monitoring and remedial wells to TPHg and TPHd by EPA Method 8015M,and MtBE by EPA Method 8260B. <br /> This decision by Board staff does not alleviate the requirement to address deeper groundwater contamination <br /> identified near the former Rocky's Restaurant domestic well, and as requested in our 20 May 2002 letter, a <br /> revised Final Remediation Plan should still be submitted to this office by 30 September 2002. <br /> If you have any questions or comments,please call me at(916)255-3115. <br /> M� artz4en R.G. <br /> �Y <br /> Associate Engineering Geologist <br /> cc: Mr. Mark Owens, SWRCB,UST Cleanup Fund, Sacramento <br /> Mr. Mike Infurna, San Joaquin County Environmental Health Department, Stockton <br /> Mr. Timothy J. Cuellar, Advanced GeoEnvironmental, Incorporated, Stockton <br /> Mr. Scott Rishwain,Rishwain&Rishwain, Stockton <br /> Mr. Ben Guzman, San Joaquin County Municipal Utilities, Stockton <br />