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conducted during the monitoring period and no areas of concern were noted (see signed "Certification Statement" located inside cover page, after the Table Of Contents in this report). 3.0 SOLID WASTE MONITORING The French Camp Landfill has been formally closed and no longer receives waste (Appendix A). 4.0 WATER QUALITY MONITORING 4.1 SAMPLING AND LABORATORY ANALYSES All of the groundwater monitoring wells were sampled on March 15 and 16, 2010 and surface water monitoring points were sampled on March 16, 2010. Quarterly depth-to- water and stream gauging was performed on March 16 and May 22, 2010. A single sample set was collected from each sampling point(groundwater, leachate, and surface water) and analyzed for the parameters stipulated in RWQCB Order No. R5- 2007-0046, as summarized in Table 1. Water quality samples were also analyzed in the field for oxygen reduction potential, turbidity, temperature, specific conductance, and pH and these field measurements were recorded on well data sheets. The groundwater monitoring wells and surface water monitoring points were sampled in accordance with the sampling and analysis procedures detailed in Appendix B. Well data sheets, raw laboratory data, certificates of analyses, and chain-of-custody records for the sampling program are included in Appendix C. The laboratory analyses and field results for groundwater wells, surface water sampling stations, and soil-pore gas sampling stations are summarized in Tables 2 through 6. 4.2 QA/QC RESULTS The quality assurance/quality control (QA/QC)program completed for the monitoring event included analyses of one duplicate sample, one field(ambient)blank, one trip blank, and laboratory method blanks. The trip and field blanks were analyzed for volatile organic compounds (VOCs) by EPA Method 8260,while the laboratory method blanks were analyzed for all of the analytes included in the monitoring program. During the monitoring period, chloroform was detected above the practical quantitation limit(PQL) in the field blank,no other VOCs were detected in the QA/QC blanks. Review of the primary sample data indicates that a similar concentration of chloroform was measured in the sample collected from well MW-6A. This result was flagged as a suspected laboratory contaminant. In addition, trace level concentrations of toluene were detected in the samples collected from well MW-6A and surface water station SW-1, SW-2, and SW-3. Although,toluene was not detected in the QA/QC blanks, it is a common field/laboratory contaminant. D:\2010-0030\FC_1 SA 10.doc 2 GeoLogic Associates