(2) the operation of a commercial treatment to crush, sieve or sort solid hazardous residual materials, other than materials and objects containing PCBs or contaminated by PCBs, on the following conditions:(a) the quantity of hazardous residual materials stored at the operating site is less than 100,000 kg;
(b) the hazardous residual materials are treated within 90 days of receipt;
(c) the hazardous residual materials treated are not destined for disposal or use for energy purposes;