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Draft Environmental Impact Report Page III-13 <br /> Forward Inc. Landfill Expansion <br /> foundation layer for the closure cap. If necessary, the treated soils can be disposed in a Class II <br /> F} or Class III WMU. <br /> F, <br /> __i <br /> Although there are currently no Land Treatment Units (LTUs) at the site, LTUs have been <br /> constructed in the past and may be utilized in the future. A LTU is an area constructed with a <br /> F liner, berm, stormwater collection system, and monitoring system, in which a layer of <br /> contaminated soil is placed for treatment. LTUs for contaminated soil are permitted within <br /> WMU G-North or G-South. These treatment units may also be used to treat other nonvolatile i <br /> organics that are suitable for bioremediation such as PNAs(polynuclear aromatic <br /> `. hydrocarbons). <br /> Although Forward is not currently treating gasoline contaminated soil, these soils have been <br /> treated.in the past and may be treated in the future. Gasoline-contaminated soils would be <br /> treated in WMU G-North or G-South by a vapor extraction and thermal oxidation technique in <br /> accordance with San Joaquin County Air Pollution Control District regulations on uncontrolled <br /> Fair emissions. To verify that vacuum extraction has sufficiently reduced soil contaminant levels <br /> F below the designated level for disposal, soil samples would be collected from the cell at the <br /> initiation of remediation and then monthly to monitor the remediation process. The samples <br /> would be analyzed for total petroleum hydrocarbons (TPH) as gasoline and benzene, toluene, <br /> F ethylbenzene, xylene (BTEX). Approval for final disposition of the material would be requested <br /> from San Joaquin County Public Health Services(SJCPHS). Upon verification that the soil in a <br /> F' <br /> cell has been adequately cleaned, the soil would be removed and disposed onsite in an <br /> F, appropriate waste cell or used as daily or intermediate cover. These treatment units may also <br /> be suited for other volatile organic compounds such as halogenated volatile aromatics,etc. <br /> Sludge Treatment and Disposal <br /> The existing Forward Landfill does not currently treat or dispose of sludge. The proposed project <br /> F includes solidification of high moisture content wastes including sludge,as discussed in <br /> [, Solidification of High Moisture Content Wastes,below. <br /> Asbestos Disposal <br /> The existing Forward Landfill handles and disposes Asbestos-Containing Materials (ACM)in <br /> accordance with applicable federal and state regulations. All ACM delivered to the existing <br /> Forward Landfill must be scheduled in advance and accompanied by the proper documentation, <br /> - t which is checked by the scale-house attendant. All ACM is landfilled in an area separated from <br /> other waste types. Bagged ACM is dumped only onto the active working face of the asbestos <br /> disposal area and not onto the flat compacted landfill area. Bulldozers and front-end loaders cover <br /> the ACM on the working face with soil. Landfill equipment is not allowed to come in contact with # <br /> ACM,to reduce the risk of contamination. At least six inches of soil covers the disposal cell within <br /> one hour of being disposed. <br /> All employees involved in the handling and disposal of ACM are equipped with protective <br /> clothing. The employees receive annual training,and initial and annual medical examinations to <br /> comply with OSHA Standards. <br /> Ash Disposal <br /> The existing Forward Landfill accepts ash for disposal,if proper documentation is submitted <br /> (consisting of analytical results from a state-certified laboratory,laboratory chain-of-custody forms, <br /> and/or a waste characterization form,signed by the generator). The ash is disposed directly in the <br />