4.1.2 Description of Primary Treatment Technologies Each of the alternatives except Alternative 8 would use a primary treatment technology to treat PCB-contaminated material. Alternative 8 involves off-site disposal in a TSCA landfill. The sections below describe each of the primary treatment technologies that would be used in Alternatives 1 through 7 and the off-site disposal option available for Alternative 8. Transport, treatment, and disposal of nonhazardous solid waste are common to all alternatives and are discussed in greater detail in Section 3.3.2.