• PCB oil is drained from transformers, capacitors, switchgear and other electrical equipment on site.
• Low-level PCB transformers still in service are retro-filled to bring them down to <50 ppm for redesignation as active non-PCB equipment.
• High-level PCB core/coils and oil in existing PCB transformer tanks is removed, the interior tank cleaned and the core/coil is replaced.
• The former PCB transformer is retrofilled with new mineral oil for designation as <50 transformer and turned back into service.

Note: GPE successfully replaced seven askarel transformers at Pearson International Airport for the GTAA, two of which were core/coil replacements.

• Oil-filled transformers are individually tested to <50 ppm.
• Units are drained and double drained of all oil.
• All residual oil is also recovered for recycling purposes.
• Units are cleaned and all non recyclable materials are segregated, tested and packaged for disposal.
• The metals are recycled.