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2.0 FORWARD UNIT 2.1 WATER QUALITYMONITORING 2.1.1 Sampling and Laboratory Analyses During the first quarter 2011, depth-to-water measurements were recorded in the groundwater monitoring wells and all of the groundwater monitoring wells were sampled by Del-Tech Environmental Support Services(Del-Tech)between February 23 and March 1, 2011. Surface water stations FSW-1 and FSW-2 were sampled on February 24, 2011. The lysimeters were checked for soil-pore liquid on March 15, 2011, and Del- Tech reported that all lysimeters were dry. Of note,lysimeters LY-E1B, LY-E2B, D- 93B, WU-DO1, WMW-D02, -D02 (pan), and FU-03 could not be located or have been buried, while lysimeters LY-E1A and LY-E2A were reported to be plugged. Samples were collected by Del-Tech Geotechnical Support Services (Del-Tech) from each sample point containing sufficient liquid and submitted to Test America Laboratories(Test America) of Buffalo,New York, a state certified laboratory under contract to Forward. During the first quarter 2011 monitoring period, samples were analyzed for the routine monitoring parameters stipulated in RWQCB Order No. R5- 2003-0049. 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 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 2-7. 2.1.2 A/ C Results The quality assurance/quality control(QA/QC)program completed for the first quarter 2011 water quality monitoring event included analyses of two field blanks, four laboratory method blanks, and one duplicate sample. The field blanks were analyzed for volatile organic compounds(VOCs)by EPA Method 8260 and method blanks were analyzed for all of the analytes included in the monitoring program. The results of the QA/QC program indicate that methylene chloride was detected above the practical quantitation limit(PQL) in both field blank samples. Review of the analytical data indicates that methylene chloride was not detected in any of the primary samples collected during the monitoring period. During the first quarter 2011 monitoring event,a duplicate sample was collected from well MW-15 and labeled DUP. As shown on Table 2-2, for quantifiable concentrations greater than the PQL,the duplicate sample analyses yielded good correlation(within 7%)with the primary sample. Review of first quarter 2011 sampling dates and laboratory analytical certificates indicates that the laboratory analyses were completed within required holding times. Based on the results of the ®:\2011_0050\FA_IQt Ldocx 4 eoLogic Associates