310 CMR 30.689
Closure
(1) At closure, the owner or operator shall remove all hazardous waste and hazardous waste
residues from the containment system and shall decontaminate or remove all remaining
containers, liners, bases and soil containing or contaminated with hazardous waste or hazardous
waste residues.
(2) Upon removing hazardous waste from the containment system, the owner or operator shall
become a generator of hazardous waste and shall manage it in compliance with all applicable
requirements of 310 CMR 30.000.