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noted(see signed"Certification Statement"located inside cover page, after the Table Of <br /> Contents in this report). <br /> 3.0 SOLID WASTE MONITORING <br /> The French Camp Landfill has been formally closed and no longer receives waste <br /> (Appendix A). <br /> 4.0 WATER QUALITY MONITORING <br /> 4.1 SAMPLING AND LABORATORY ANALYSES <br /> All of the groundwater and leachate monitoring wells and surface water monitoring <br /> points were sampled between August 18 and 26, 2010. Quarterly depth-to-water and <br /> stream gauging was performed on August 18 and 19, and December 2, 2010. <br /> A single sample set was collected from each sampling point(groundwater, leachate, and <br /> surface water) and analyzed by Test America Laboratories for the parameters stipulated <br /> in RWQCB Order No. R5-2007-0046, as summarized in Table 1. Water quality samples <br /> were also analyzed in the field for dissolved oxygen,turbidity, temperature, specific <br /> conductance, and pH and these field measurements were recorded on well data sheets. <br /> The groundwater and leachate monitoring wells and surface water monitoring points <br /> were sampled by Del-tech Geotechnical Support Services (Del-Tech) in accordance with <br /> the sampling and analysis procedures detailed in Appendix B. Well data sheets, raw <br /> laboratory data, certificates of analyses, and chain-of-custody records for the sampling <br /> program are included in Appendix C. The laboratory analyses and field results for <br /> groundwater wells and surface water sampling stations are summarized in Tables 2 <br /> through 5. <br /> 4.2 QA/QC RESULTS <br /> The quality assurance/quality control (QA/QC)program completed for the monitoring <br /> event included analyses of one duplicate sample, one field(ambient)blank, one trip <br /> blank, and three laboratory method blanks. The trip and field blanks were analyzed for <br /> volatile organic compounds (VOCs)by EPA Method 8260. Laboratory method blanks <br /> were analyzed for all of the analytes included in the monitoring program. During the <br /> monitoring period, acetone was detected at a trace concentration in one of the method <br /> blanks. However, acetone was not detected in any of the primary samples collected <br /> during the monitoring period. <br /> A duplicate sample was collected from well MW-2 and was labeled <br /> MW-DUP. Duplicate test results are presented along with the primary data in Table 3. <br /> Comparison of the primary and duplicate sample results, when both results are <br /> measurable concentrations above the practical quantitation limit(PQL)indicates good <br /> agreement(within 5%), except for calcium, magnesium, and potassium where the relative <br /> percent difference varied from 18 to 53 percent. In addition, four VOCs(1,1- <br /> 1D:12010-0030\FC 2SA10.doc <br /> _ 2 <br />