| Weight or volume, calendar year | F2005 | F2006 | F2007 | F2008 |
| SF6 (kg in service) | 110,376 | 109,337 | 109,575 | 108,094 |
| PCBs | ||||
| N/A | N/A | N/A | 11,650 |
| N/A | N/A | N/A | 721,084 |
In service SF6 data was compiled from equipment owned and operated by BC Hydro, including substations currently managed by BCTC.
PCBs - high level PCBs are in use at one location only, Vancouver Island Terminal. Low level PCB is estimated from historical BCTC test records, BC Hydro underground transformer program and Distribution GIS data.
Last Modified: Mar 25, 2010