R 299.4130 Storage of solid waste in contained waste piles.

Rule 130. (1) The storage of solid waste in a pile shall not constitute disposal if the pile has a containment system that is designed, installed, and operated to prevent any migration of accumulated liquids out of the system to the soil, groundwater, or surface water at any time during the use of the system. To prevent the migration of liquids, the system shall be in compliance with the provisions of this rule and have 1 of the following: (a) A natural soil barrier which is in compliance with the provisions of R 299.4307(3)(a). (b) A liner that is in compliance with the provisions of R 299.4307(4). (c) A vault or pad that is in compliance with the provisions of subrule (5) of this rule. (2) Waste pile containment systems shall be constructed of, or lined with, materials that are compatible with the waste to be placed in the system and shall have sufficient strength and thickness to prevent failure due to all of the following: (a) Pressure gradients, including static head and external hydrological forces. (b) Physical contact with the waste to which the materials are exposed. (c) Climatic conditions. (d) The stress of daily operation, including stresses from nearby vehicular traffic. (3) Waste pile containment systems shall be placed on a foundation or base which is capable of providing support to the secondary containment system and resistance to pressure gradients above and below the system and which is capable of preventing structural failure due to settlement, compression, or uplift. (4) Waste pile containment systems shall be sloped or otherwise designed or operated to drain and remove liquids that result from leaks, spills, or precipitation. Spilled or leaked waste and accumulated precipitation shall be removed from the secondary containment system within 24 hours. (5) Vaults or pads that are used for waste pile containment shall be constructed of steel, poured reinforced concrete, precast concrete, solid masonry, or an equivalent material and shall be designed to do all of the following: (a) Withstand the full loads to which they will be subjected. (b) Have water stops in place at all joints, if any. (c) Prevent the migration of the material out of the containment system. (d) Prevent migration of moisture into the vault, if the vault is subject to hydraulic pressure. (e) Have walls which will prevent runoff and runon and which are not more than 6 feet in height above interior grade, unless normal access is provided. (f) Have a stable foundation. (6) The owner and operator of a waste pile shall do all of the following: (a) Design, construct, operate, and maintain a runon control system that is capable of preventing flow onto the pile during peak discharge from not less than a 24-hour, 25-year storm. (b) Design, construct, operate, and maintain a runoff management system to collect and control, at a minimum, the water volume resulting from a 24-hour, 25-year storm. (c) Manage collection and holding facilities associated with run-on and runoff control systems such that design capacity of the system is maintained. (7) Waste that is being accumulated speculatively in piles shall be separated from general refuse and other waste. (8) The owner and operator of a waste pile that could be subject to dispersal by wind shall cover or otherwise manage the pile so wind dispersal is controlled. (9) The owner and operator of a waste pile shall manage runoff from the pile as leachate in accordance with the provisions of R 299.4308. (10) At closure, the owner and operator of a waste pile shall remove or decontaminate all of the following in accordance with the act and these rules: (a) Waste residues. (b) Contaminated liners. (c) Subsoils. (d) Structures. (e) Equipment.