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prepared a draft landfill gas remediation plan which has been submitted to the LEA and Cal Recycle for review. 3.0 AUSTIN UNIT 3.1 WATER QUALITY MONITORING 3.1.1 Sampling and Laboratory Analyses During the second quarter 2010, depth-to-water measurements were recorded in the groundwater monitoring wells on May 28, 2010 and the Austin Unit's DMP and CAP groundwater monitoring wells were sampled by Del-Tech between May 28 and June 10, 2010. Surface water stations were inspected and samples were collected from surface water station ASW-1 on June 1, 2010,while station ASW-2 was reported dry. Samples were collected from each sample point with sufficient liquid and submitted to BC for analysis of the parameters stipulated in RWQCB Order No. R5-2003-0049. Table 2-1 presents the monitoring schedule and summarizes the analytical methods utilized during the current monitoring period. 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 were sampled in accordance with the sampling and analysis procedures detailed in Appendix B. The well data sheets, raw laboratory data, certificates of analyses, and chain-of- custody records related to the sampling program are included in Appendix C. Field and laboratory analyses are summarized in Tables 3-1 through 3-6. 3.1.2 QA/QC Results The QA/QC program completed for the second quarter 2010 water quality monitoring event at the Austin Unit included analyses of two field blanks,three trip blanks,three laboratory method blanks, and one duplicate sample. The trip, field, and equipment blanks were analyzed for VOCs by EPA Method 8260 and method blanks were analyzed for all required analyses. The results of the QA/QC program indicate that trace-levels of acetone and chloroform were measured in one or more of the QA/QC blanks during the monitoring period. Review of the primary sample results indicates that neither acetone nor chloroform was detected in any of the primary samples collected during the monitoring period. During the second quarter 2010 monitoring event, a duplicate sample was collected from CAP well AMW-11 and labeled AMW-DUP. Duplicate groundwater results are presented along with the primary data in Table 3-2. Comparison of the values in the primary sample with the duplicate indicates that there was good agreement(within 5%). Of note, concentrations less than the PQL were not included in the comparison since these are estimated values. Review of laboratory analysis dates with the required holding times indicates that all of the samples were submitted and analyzed within the required holding times during the second quarter 2010. Based on the results of the laboratory blank and duplicate analyses, D:\2010_0013\FA_2Q10.doc 8 GeoLogic Associates