R315-264-250. Waste Piles -- Applicability

  (a) The regulations in Sections R315-264-250 through 254 and 256 through 259 apply to owners and operators of facilities that store or treat hazardous waste in piles, except as Section R315-264-1 provides otherwise.

  (b) The regulations in Sections R315-264-250 through 254 and 256 through 259 do not apply to owners or operators of waste piles that are closed with wastes left in place. Such waste piles are subject to regulation under Sections R315-264-300 through 304, 309 and 310, and 312 through 317, Landfills.

  (c) The owner or operator of any waste pile that is inside or under a structure that provides protection from precipitation so that neither run-off nor leachate is generated is not subject to regulation under Section R315-264-251 or under Sections R315-264-90 through 101, provided that:

  (1) Liquids or materials containing free liquids are not placed in the pile;

  (2) The pile is protected from surface water run-on by the structure or in some other manner;

  (3) The pile is designed and operated to control dispersal of the waste by wind, where necessary, by means other than wetting; and

  (4) The pile will not generate leachate through decomposition or other reactions.