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was present to collect samples from lysimeters W-2, LY-A, and LY-BG1. Of note, lysimeter D-01 has been buried and lysimeters E-1, LY-E 1 A, LY-EIB, LY-E2A, LY-E2B, FU-03, and WMU D-02 appear to be damaged since they can no longer hold a vacuum. A single sample set was collected from each point containing sufficient liquid and submitted to BC Laboratories, Inc. (BC)of Bakersfield, California, a state certified laboratory under contract to Forward. During the third quarter 2008 monitoring period, samples were analyzed for the routine monitoring parameters stipulated in RWQCB Order No. R5-2003-0049. In addition, well MW-24 was sampled for the five-year list of constituents of concern(COCl), and confirmation samples were collected from well MW-2A for chlorinated herbicides. Table 2-1 summarizes site monitoring parameters, analytical methods, and monitoring frequency. Water quality samples were also analyzed in the field for dissolved oxygen, turbidity, temperature, specific conductance, and pH and recorded on well data sheets. The groundwater monitoring wells, surface water monitoring points, and leachate monitoring points were sampled in accordance with the sampling and analysis procedures detailed in Appendix B. The well data sheets, 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 monitoring wells, surface water stations, lysimeter and leachate sampling stations are summarized in Tables 2-2 through 2-8. 2.1.2 QA/QC Results The quality assurance/quality control (QA/QC)program completed for the third quarter 2008 water quality monitoring event included analyses of five field blanks, five trip blanks, five laboratory method blanks, two equipment blanks, and one duplicate sample. The trip, field, and laboratory method blanks were analyzed for volatile organic compounds (VOCs)by EPA Method 8260. Laboratory method blanks were analyzed for all of the analytes included in the monitoring program. The results of the QA/QC program indicate that acetone, bis(2-ethylhexyl)phthalate, bromoform, dibromochloromethane, methylene chloride, and t-butyl alcohol were detected in one or more of the QA/QC blanks during the monitoring period. Review of the primary sample results indicates that a similar concentration of acetone, bis(2-ethylhexyl)phthalate, and t-butyl alcohol were detected in several of the primary samples collected during the monitoring period and were flagged as suspected field/laboratory contaminants. During the third quarter 2008 monitoring event, a duplicate sample was collected from well MW-17 and labeled DUP. As shown on Table 2-2, the duplicate sample analyses yielded good correlation (within 10%)with the primary sample results. Of note, concentrations less than the practical quantitation limit(PQL)were not included in the duplicate comparison, since these are estimated values. Review of third quarter 2008 sampling dates and laboratory analytical certificates indicates that with the exception of the nitrate as nitrogen concentrations measured in two lysimeter samples, the laboratory analyses were completed within required holding times. The holding times for nitrate as nitrogen was missed by less than 1 hour and are believed D:\2M_001"A 3".doc 4 Geologic Associates