The applicants, two construction trade unions, applied for certification to represent employees working on a steam pipeline at the Bruce Energy Centre.
The responding party, Ontario Hydro, raised a preliminary objection that the employees were already represented by the applicants under existing Electrical Power Systems Construction Association (EPSCA) collective agreements.
The central issue was whether the work was performed 'on Ontario Hydro property' within the meaning of the EPSCA agreements.
The Board found that Ontario Hydro did not have a sufficient property interest in the lands where the work was performed to bring it within the scope of the EPSCA agreements.
Consequently, the Board ruled that the employees were not represented under the EPSCA agreements on the application date, allowing the certification applications to proceed.