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Water Quality Monitoring Report Forward Landfill 2.1.6 Leachate/Surface Impoundment Monitoring For the Forward Unit, leachate sumps and surface impoundments are inspected weekly by Forward Landfill personnel. If leachate is detected in a sump, it is pumped into the surface impoundment WMU F (North) for evaporation. During the first quarter 2014, leachate was observed at holding areas WMU D-89, WMU D-93/94, WMU D-04 N/S, and WMU D-02. Leachate logs summarizing the total flow and flow rate are presented in Appendix A. For surface impoundment WMU-F (North), freeboard ranged from approximately 3.50 to 3.83 feet during the first quarter 2014 monitoring period. Appendix A presents copies of the freeboard observation logs and dissolved oxygen measurements. Leachate samples are collected on a quarterly basis and analyzed in the field for pH, specific conductance, temperature, and turbidity. Results of quarterly field monitoring measurements for the first quarter 2014 are presented in Table 2-6. 2.1.7 Surface Water Monitoring Site run-on and run-off control facilities are designed to effectively channel surface water to site stormwater/sedimentation ponds. According to the Operations Manager, there were no discharges from the Forward Unit to surface water (waters of the United States) during the reporting period. Surface water monitoring stations FSW-1 (downstream) and FSW-2 (upstream) were reported dry on February 4, 2014 during the first quarter 2014 monitoring period. As a result, no samples were collected. 2.2 Summary Groundwater quality conditions beneath the Forward Unit during the first quarter 2014 monitoring period are generally similar to those observed in previous monitoring periods. During the first quarter 2014 monitoring period, one VOC (RIPE) was measured at a quantifiable concentration at well MW -2A. For the inorganic monitoring parameters, the CL for nitrate as nitrogen was exceeded at well MW -14 and the CL for sulfate was exceeded at background well MW -24; however, neither of these wells exhibited a statistically significant increasing temporal trend. The organic and inorganic CL exceedances for compliance wells MW -2A and MW -14 are believed to be related to the groundwater gradient reversal in the northeast corner of the landfill beginning in 2011 and not the result of a release from the landfill, while the CL exceedance for well MW -24 is attributed to background conditions. Lysimeters and surface water sampling locations were dry during the first quarter 2014 monitoring period. M:\ 2014.0012VA_1Q14.docx 8 4/28/2014, Rev. 0