Applicability. This regulation applies to owners and operators of facilities that store or treat hazardous waste in piles, except as §A(2) of this regulation or Regulation .01 of this chapter otherwise provides. Instead of complying with the requirements of this regulation for the storage or treatment of hazardous waste in piles, an owner or operator may manage the pile of hazardous waste as a landfill in compliance with the requirements of Regulation .22 of this chapter. This regulation is not applicable to waste piles that are closed with wastes left in place. Owners or operators of these waste piles shall comply with the requirements of Regulation .22 of this chapter. An owner or operator of a waste pile subject to this regulation shall comply with: COMAR 26.13.05.12B(6), concerning the control of wind dispersal of particulate matter; COMAR 26.13.05.12C, concerning waste analysis; COMAR 26.13.05.12E, concerning inspection and testing; COMAR 26.13.05.12G, concerning special requirements for ignitable or reactive waste; COMAR 26.13.05.12H, concerning special requirements for incompatible wastes; COMAR 26.13.05.12I(1) and (2), concerning closure and post-closure care; and The notification requirement of Regulation .19E of this chapter with respect to the waste pile. Control of Precipitation, Run-off, and Run-on. If leachate or run-off from a pile is a hazardous waste, then the owner or operator shall ensure that either: The following requirements are met: The pile is placed on an impermeable base that is compatible with the waste under the conditions of treatment or storage; and The facility is in compliance with: COMAR 26.13.05.12B(3), concerning a run-on control system, COMAR 26.13.05.12B(4), concerning a run-off management system, and COMAR 26.13.05.12B(5), concerning collection and holding facilities for run-off and run-on; or The following requirements are met: The pile is protected from precipitation and run-on by some means other than that required by §C(1) of this regulation; and Liquids or wastes containing free liquids are not placed in the pile. Design Requirements — Liners and Leachate Collection Systems. This section applies to each new waste pile unit, replacement of an existing waste pile unit, or lateral expansion of an existing waste pile unit that is within the area identified in the part A permit application, which receives hazardous waste on or after May 8, 1985. The owner or operator of a unit identified in §D(1) of this regulation shall comply with the requirements of COMAR 26.13.05.12B and D for liners and leachate collection systems or equivalent protection. Containment System Repairs, Contingency Plans. The owner or operator shall comply with the requirements of COMAR 26.13.05.12F, except that a waste pile that is to be closed under COMAR 26.13.05.12F(6) shall be closed in accordance with COMAR 26.13.05.12I(1) and (2). Action Leakage Rate and Response Actions. This section applies to the owner or operator of a waste pile identified in 40 CFR §265.254. The owner or operator shall: Comply with the requirements of 40 CFR §265.255 and 40 CFR §265.259, subject to §F(2)(b) of this regulation; and In complying with 40 CFR §265.255 and 40 CFR §265.259, substitute “Secretary” for “Regional Administrator”.