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Non-hazardous solid waste— 847,008 tons Asbestos—7,721 tons Sewage and wastewater treatment sludge— 12,062 tons 4.2 LANDFILL GAS MONITORING The CEHD performs monthly inspections at the Forward Landfill for methane concentrations in perimeter soil-pore gas probes. With the exception of the March 2011 LEA inspection, no perimeter gas probes exceeded the regulatory limit of 5 percent at the Forward Landfill. In accordance with CCR 27, Section 20937(a) (1), methane monitors are installed in all buildings at the site to protect public health and safety and the environment. During the 2011 monitoring year, no methane was detected in any of the facilities buildings. 4.3 COMPLIANCE RECORD During the 2011 monitoring year, CLs were consistently exceeded in Forward Unit wells MW-15 and MW-22 and intermittently in wells MW-2A, MW-10, MW-18, and MW-21. However, no CL exceedances for impact constituents were verified in retest samples collected from the monitoring wells at the Forward Unit. In response to continued detection of VOCs in groundwater downgradient of the Austin Road Unit, the RWQCB issued a CAO on December 8, 2008. Forward installed four additional groundwater monitoring wells downgradient of the Austin Unit and is currently in the process of evaluating the vertical and lateral extent of groundwater impacts downgradient of the facility. In addition, Forward finished construction of a 12- inch, looped, City waterline system to the downgradient CYA facility on January 18, 2011 to supply potable water to the facility. 4.4 FORWARD UNIT 4.4.1 Groundwater Measured groundwater elevations during 2011 were generally static reflecting seasonal precipitation patterns. Hydrographs depicting groundwater elevations over the past 14 years are presented in Appendix D. During the 2011 monitoring year, the groundwater flow direction was generally to the north and northeast toward the Austin Unit with an average hydraulic gradient of 0.002 ft/ft. Groundwater quality conditions beneath the Forward Unit during the 2011 monitoring year are generally similar to those observed in previous monitoring years. Several low- level VOCs (generally at estimated trace concentrations) were regularly detected in DMP wells MW-2A and MW-14 and intermittently in wells MW-10 and MW-16. On behalf of Forward Inc., GLA prepared a letter report dated February 14, 2001 (RWQCB Case No. 2209), to assess the source and potential impacts of low-level VOCs in groundwater c:\soii-ooso\FA_4QILdoc 14 Geo-Logic Associates