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Ms Lori Duncan Project No 880-039 1A 01010000 <br />October 28, 2004 <br />Page 5 <br />Please call David Herzog at (916) 565-4377 if you have questions regarding this report <br />or any aspect of the project <br />Sincerely,, H <br />SHAW ENVIRONMENTAL, INC 4� <br />No. 7211 � <br />Benjamin Chevlen David W Herzog, F C������ <br />Staff Geologist Project Manager <br />Attachments Table 1 — Groundwater Monitoring Data <br />Table 2 — Treatment System Performance Data <br />Table 3 — Treatment System Emission Rates and Destruction Efficiencies <br />Table 4 — Soil Vapor Extraction System Well Data <br />Figure I — Site Location Map <br />Figure 2 — Groundwater Elevation Contour Map, Third Quarter 2004 <br />Figure 3 — TPHg/Benzene Concentration Map, Third Quarter 2004 <br />Appendix A — Groundwater Monitoring Field Data Sheets <br />Appendix B — Groundwater Sampling and Analysis Procedures <br />Appendix C — Groundwater Chain -of -Custody Records and Laboratory <br />Analysis Reports <br />Appendix D — Treatment System O&M Field Sheets, Laboratory <br />Analytical Reports, Chain -of -Custody Documentation <br />Appendix E — TPHg, Benzene and MTBE Concentrations and <br />Groundwater Elevations vs Time <br />cc James Barton, California Regional Water Quality Control Board, <br />Rancho Cordova, California <br />Tom Busenbark, San Joaquin Valley Air Pollution Control Board, ' <br />Modesto, California <br />Don Rodgers, 11190 S Union Road, Manteca, California 95336 <br />N 1sacDP120041Prj188018800391A 4ad doe SHAW ENVIRONMENTAL, INC <br />