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455 Fairway Dnve,Suite 200 <br /> Brown & Root Environmental Deerfield Beach,FL 33441 <br /> (954)570-5885 <br /> FAX (954),570-5974 <br /> January 15, 1997 <br /> Mr Brian Cobb <br /> Enx tronmental and Construction Manager <br /> E-Z Serve Petroleum Marketing Company of California <br /> P O Box 922021 <br /> Houston, Texas 77292-2021 <br /> SUBJECT: Fourth Quarter 1996 Groundwater Monitoring(October through December) <br /> Former E-Z Serve Facility No. 100966 <br /> 2537 Waterloo Road,Stockton, California <br /> Dear Mr Cobb <br /> Brown & Root Environmental (BRE) was contracted by E-Z Serve Petroleum Marketing <br /> Company of California (E-Z Serve) to perform groundwater monitoring at the former E-Z Serve <br /> Facility No 100966 (Site) The Site is located at 2537 Waterloo Road, Stockton, California <br /> The Site is currently operated as a convenience store and does not retail petroleum products The <br /> four underground storage tanks (USTs) were excavated and removed in March 1990 Site <br /> features are depicted on Figure 1 <br /> This report summanzes field and analytical data collected during the current quarter (October <br /> 1996 through December 1996) for this facility The activities summarized in this report were <br /> completed at the direction of the San Joaquin Public Health Services Department <br /> MONITORING RESULTS <br /> On December 8, 1996, BRE personnel performed the fourth quarter momtonng event Depth to <br /> groundwater was measured prior to well purging and sampling Pnor to sampling, all monitoring <br /> wells were checked for phase separated product using a clear, Teflon bailer Phase separated <br /> product was not detected at this Site The field protocol followed by BRE personnel during <br /> groundwater well purging and sampling is included as Appendix A Well purging and sampling <br /> documentation logs are included as Appendix B BRE will forward documentation of purge <br /> water disposal to the State agency under a separate cover <br /> Depth to groundwater beneath the facility during this monitoring event ranged from 58 05 <br /> (MW-6) to 58 71 (MW-7) feet below land surface (bls) Depth to groundwater measurements <br /> across the study area during this quarter indicate that the groundwater table rose slightly from the <br /> last monitoring event <br /> A Halliburton Company <br />