The Canadian Nuclear Safety Commission says it inspected a work site in the southeastern Saskatchewan city last week and found 16 safety violations involving a nuclear density gauge.
Municipal crews use the portable device, which contains radioactive materials, to measure the density of soil at road construction sites.
The commission has ordered the city to stop using the machine until it proves that effective radiation safety procedures will be followed.
The city says it will comply with the order and stop using the gauge.
A spokesperson says the municipal radiation safety officer is currently on holidays, and no further comment will be made until he returns next week.
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