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1S <br /> Mr Travis Bryant Project 22605-101 02 <br /> . January 28, 1998 <br /> Page 3 <br /> CONCLUSIONS <br /> The typical gradient near the intersection of Charter way and Lincoln Street has generally been toward <br /> the northeast Groundwater elevations decreased 0 89 foot from the previous sampling event (August <br /> 1997) Results of this monitoring event indicate that concentrations of dissolved gasoline <br /> hydrocarbons in wells MW-1 and MW-2 were generally consistent with levels detected in the previous <br /> sampling event <br /> WORK PROPOSED FOR FIRST QUARTER 1998 <br /> EMCON will continue to perform quarterly groundwater sampling on behalf of IBC The next <br /> sampling event is tentatively scheduled for February 1998 Groundwater samples will be collected <br /> from monitoring wells MW-1 and MW-2 and will be analyzed for TPHG, BTEX isomers, and <br /> methyl tert-butyl ether <br /> Please call if you have questions regarding this report or any aspect of the project <br /> Sincerely, <br /> EMCON <br /> Mark Capps ay J on <br /> Project Geologist nio roject Supervisor <br /> R G 5867 <br /> Attachments Table 1 Groundwater Monitoring Data <br /> Table 2 Additional Groundwater Analyses <br /> Figure 1 Site Location Map <br /> Figure 2 Generalized Site Plan <br /> Appendix A Sampling and Analysis Procedures <br /> Appendix B Chain-of-Custody Records and Laboratory Analysis Reports <br /> cc Ron Rowe, San Joaquin County Public Health Services <br /> Elizabeth Thayer, California Regional Water Quality Control Board <br /> 3ACSN 1PJ212605126051010 2AB-98U6accus i <br />