Sec. 26.10.15.05. Closure Requirements

A. The requirements of this regulation apply to owners and operators of collection centers, transportation facilities, and used oil burning facilities that store used oil in aboveground storage tanks or containers, or both.

B. Aboveground Storage Tanks. On termination of used oil operations, facilities which stored used oil in aboveground storage tanks shall comply with the following system closure requirements:

(1) Remove or decontaminate used oil residues in tanks, containment system components, soils, and structures and equipment, and manage those used oil contaminated wastes as hazardous waste, unless they are not hazardous waste under this chapter or COMAR 26.13.02; or

(2) If it is not practicable to remove or decontaminate all contaminated soils as required in §B(1) of this regulation, then the tank system shall be closed and post-closure care performed in accordance with the closure and post-closure care requirements for hazardous waste landfills in COMAR 26.13.05.07.

C. Containers. Upon termination of used oil operations utilizing containers:

(1) Containers holding used oils or residues of used oil shall be removed from the site; or

(2) Used oil residues shall be removed from containers and the resulting wastes managed as hazardous waste, unless the materials are not hazardous waste under this chapter or COMAR 26.13.02.