A contractor was hurt following a leak of a corrosive chemical at the Prince Albert water treatment plant Monday.

The city's water supply was never in danger, according to authorities.

They explained that a contractor somehow punctured a line that contains a solution of caustic soda, used in the water treatment process.

Some of the corrosive chemical splashed onto the contractor's face and he was quickly given a shower to wash away the solution.

Officials said he suffered minor chemical burns.

City Manager Robert Cotterill said the leak drained into a containment facility.

"We have a storage facility that handles about 20,000 litres of caustic soda, and we were full at the time," Cotterill said. "Our containment facility can handle 30,000. So it was contained within the building."

Cotterill said the injured worker was tended to on the site.

"This man was put in the showers on two occasions to try and neutralize [the substance]," he said, adding the man was also taken to hospital for further treatment.

He said that the problem was limited to a small area that was confined and the water supply was not affected.

As a precaution the plant was evacuated but workers have since returned to their posts.

The city's fire department was also dispatched to tend to the situation.