The applicant union filed a grievance alleging that the respondent employer violated the Mainline Pipeline Agreement during pipeline construction along Highways 35/115.
The respondent argued that the work was governed by the Distribution Pipeline Agreement and that it had complied with its terms.
The Board interpreted the definitions of 'mainline' and 'distribution' pipelines in the collective agreements, finding the language unambiguous.
The Board concluded that the work in question, which was downstream from the first metering station where gas pressure was reduced and transformed, fell squarely within the definition of distribution pipeline work.
The grievance was dismissed.