4.4.3.2 Compliance with ARARs -- Alternative 3 Alternative 3 relies on thermal desorption through the DAVES as the primary treatment technology and waste excavation, sorting, sizing, transportation, and storage as support technologies. Alternative 3 would meet all federal and state ARARs. Appendix B presents the ARARs and criteria TBC for Alternative 3. The ARARs and criteria TBC for Alternative 3 are briefly discussed below. PCBs DAVES effectively removes PCBs from soil, sediment, and sludge to less than 2 ppm PCBs in the treatment residual; however, DAVES creates a concentrated PCB waste stream that would be transported to an off-site TSCA incinerator. In combination with high temperature incineration, DAVES would meet chemical- and action-specific ARARs for the treatment and disposal of PCBs. Treatment residuals containing less than 50 ppm of PCBs may be disposed of in a solid waste landfill with written approval of the State. If the treatment residuals contain less than 1 ppm PCBs, then the residuals can be used for clean backfill. Air Pollution The DAVES process has the potential to emit air pollutants; however, DAVES is equipped with APC equipment. This equipment is essential to the safe operation of DAVES and to the collection of volatilized contaminants. When equipped with the appropriate APC equipment, DAVES complies with the CAA and the IAC. Waste Treatment and Disposal Materials not treatable by DAVES such as capacitors, PCB-contaminated solid waste, and uncontaminated solid waste would be sorted, sampled as specified in an approved excavation plan, and packaged and shipped off site for proper disposal in accordance with ARARs. If transformers are found, they should be drained and flushed. Dielectric fluid and liquids containing greater than 500 ppm PCBs should undergo off-site incineration. The drained and flushed transformer carcasses would be disposed of as solid waste along with uncontaminated solid waste from the six sites if they contain less than 50 ppm PCBs. Capacitors would be packaged and transported off site for incineration at a TSCA-permitted incinerator. PCB-contaminated solid waste that cannot be treated to levels equivalent to incineration would be disposed of at a TSCA-compliant landfill or incinerator. PCB-contaminated material would be stored in the CTF or ISF in preparation for treatment and disposal in accordance with 40 CFR 761.65. Waste Excavation and Handling -- ARARs associated with waste excavation and handling would be met by Alternative 3. Fugitive dust and particulates would be controlled using best management practices such as wetting the waste material with water or foam. Surface water runon and runoff at the six CD sites would be controlled during excavation using berms and silt fences and by collecting surface water runon in the excavation area using pumps, vacuum trucks, and storage tanks. All collected surface water would be treated on site using carbon adsorption. As part of site restoration activities, sediments collected by the silt fences or the berms would be containerized and transported to the CTF for treatment. The excavation sites would also be monitored to determine the effectiveness of dust and surface water control systems. Surface Water Decontamination water and storm water runon from the excavation sites should be collected, containerized, treated using carbon adsorption, and discharged to a POTW or surface water body in accordance with pretreatment standards or NPDES limitations of the CWA. Water from the lagoon at the Winston- Thomas Sewage Treatment Plant site could be pumped through carbon adsorption units and discharged to the Dillman Road POTW. Other Requirements Alternative 3 would also comply with other non-ARARs, including OSHA regulations governing worker health and safety; INDOT regulations for the packaging, labeling, and shipping of hazardous materials; and the CERCLA Off-Site Rule for proper off-site disposal of CERCLA wastes. All waste material from the six CD sites handled off site must comply with the CERCLA Off-Site Rule.