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• Mr Travis Bryant Project 792759 01000000 <br /> October 14, 1999 <br /> Page 3 <br /> CONCLUSIONS <br /> The typical hydraulic gradient near the intersection of Charter Way and Lincoln Street has <br /> generally been toward the northeast to east Groundwater elevations decreased <br /> approximately 101 feet from the previous sampling event (May 1999) Results of this <br /> monitoring event indicate that concentrations of dissolved gasoline hydrocarbons have <br /> decreased from the concentrations detected during the previous sampling events <br /> WORK PROPOSED FOR FOURTH QUARTER 1999 <br /> IT will continue to perform quarterly groundwater sampling on behalf of IBC The next <br /> sampling event is tentatively scheduled for November 1999 Groundwater samples will <br /> be collected from monitoring wells MW-1 and MW-2 and will be analyzed for TPHG, <br /> BTEX isomers, and MTBE using USEPA Modified Method DHS/LUFT and 8020, <br /> respectively <br /> Please call if you have questions regarding this report or any aspect of the project <br />. Sincerely, <br /> IT Corporation <br /> 1� <br /> Mark Capps, R G 6561 oel Coffman <br /> Project Geologist Senior Project Supervisor <br /> Attachments Table 1 Groundwater Monitoring Data <br /> Table 2 Groundwater Analytical Results for Oxygenates <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 <br /> Reports <br /> Appendix C Field Data Sheets <br /> cc Ron Rowe, San Joaquin County Public Health Services <br /> Mark List, California Regional Water Quality Control Board <br /> CPIC 1Archive\IBC1IBC-5tkn1Qtrly\S KNQ399 doc-98ft 1 1T Corporation <br />