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Water Quality Monitoring Report Forward Landfill is Non -Statistical Data Analysis The non -statistical VOCwater analyses performed on the DMP well data indicates that there were no VOCs detected in DMP wells for the Austin Unit, and as a result, no non - statistical exceedances. Concentration Limit Thresholds In accordance with RWQCB Order No. 115-2014-0006, the routine inorganic monitoring data obtained for the Austin Unit during the first quarter 2014 monitoring period were compared to intrawell concentration limits (CLs) established for each well. Since the new WDR requires annual updates to the CLs and CL have not been updated since 2011, inorganic CLs for the Austin Unit wells were recalculated and are presented in Table 3-3. Details on the CL update are presented in Appendix D. As summarized in Table 3-3, only the calcium concentration measured in well AMW-7 exceeded it CL during the first quarter 2014 monitoring period. However, trend analysis indicates that there was not a statistically significant increasing temporal trend for calcium concentrations measured in well AMW-7. Trend analysis calculations are included in Appendix D. Since a VOC release has already been acknowledged for the Austin Unit of the Forward Landfill confirmation sampling is not required for the inorganic CL exceedance at well AMW-7. • Further monitoring is necessary to evaluate if well AMW-7 should be grouped with the corrective action wells. 3.1.5 Corrective Action/Evaluation Program Field and laboratory results for CAP and EMP wells for the first quarter 2014 monitoring period are summarized in Table 3-2. As shown in Table 3-2, 11 CAP/EMP wells reported one or more VOCs exceeding a Practical Quantitation Limit (PQL), with CAP well AMW-1 having the greatest number of VOCs (11) including seven measured above a PQL. An annual report discussing the CAP and EMP monitoring results for the Austin Unit was prepared by Herst & Associates (Herst, 2013) and reported under separate cover. 3.1.6 Cannery Waste Land Application Monitoring Field and laboratory results for CWLAM wells for the first quarter 2014 monitoring period are summarized in Table 3-4. Of note, water quality standards for the CWLAM program have not been established yet and will be submitted with the Cannery Waste Water Quality Protection Standards Report, due September 1, 2014. 3.1.7 Domestic Well Monitoring • Two domestic wells (7898-A and 8106-A) were sampled on February 12, 2014. Table 3-5 summarizes the current analytical results for the domestic well samples collected. PCE M:\ 2014.0012\FA_1Q14.docx 11 4/28/2014, Rev. 0