https://www.calgary.ca/CA/cmo/Docume...osure_list.pdf
Here's the list of jobs with pay ranges for all to see. The City's description (although basic in nature) says they do their research when assigning pay ranges for each of these jobs. Perhaps Bunk or someone else can weigh in on what these factors include.
I worked one of these jobs at the City there about 10 years ago. The base band for that job has basically not moved according to this document. I would say for at least that position and likely others, they're getting better value out of them now because inflation and cost-of-living hasn't been adjusted.
For those up in arms because it sounds like you're paying more for lazy freeloading public employees, feel free to post averages for other similar municipal jurisdictions, as well as private sector equivalents in Calgary. Would be interesting to see for sure.