Section 30.646 - Special Requirements for Ignitable, Reactive, and Acutely Hazardous Wastes, Hazardous Wastes that are Polyhalogenated Aromatic Hydrocarbons, and Powders, Dusts, or Friable Materials(1) Ignitable or reactive hazardous waste shall not be placed in a waste pile unless the waste and the waste pile satisfy all applicable requirements of 310 CMR 30.750 and the waste is treated before or immediately after placement in the pile so that: (a) The resulting material is no longer ignitable or reactive hazardous waste pursuant to 310 CMR 30.122 and 30.124; and(b)310 CMR 30.560(3) is complied with.(2) Acutely hazardous waste identified in 310 CMR 30.136 shall not be stored or treated in a waste pile.(3) Hazardous waste in the form of powder, dust or friable material shall not be stored or treated in a waste pile.(4) Polyhalogenated aromatic hydrocarbons shall not be placed in a waste pile except in accordance with all other applicable provisions of 310 CMR 30.640 and in accordance with the terms and conditions of a management plan, approved by the Department, for such placement. Compliance with such a plan, when approved, shall be a condition of a license issued pursuant to 310 CMR 30.000. The Department may approve a management plan for the placement of polyhalogenated aromatic hydrocarbons in a waste pile only if, after considering at least the following criteria, the Department determines that such approval is in accordance with provisions set forth in 310 CMR 30.810 through 30.814. (a) The volume and physical and chemical characteristics of the polyhalogenated aromatic hydrocarbons, including their potential to migrate through the soil or to volatilize or escape into the atmosphere.(b) The volume and physical and chemical characteristics of the other materials placed into the waste pile, including their potential to migrate through the soil or to volatilize or escape into the atmosphere.(c) The attenuative properties of the soil and other materials surrounding or underlying the waste pile.(d) The effectiveness of additional treatment, design, or monitoring techniques used by the owner or operator of the waste pile. The Department may require the use of additional or different treatment, design, or monitoring techniques to reduce the possibility of migration or emission of these materials into ground water, surface water, soil, or air.