The emergency notice from the local health region applies to Prince Albert and any areas that use the rural water supply.

The notice covers any water that may enter a person's mouth.

The Prince Albert health region says on its website that pathogenic micro-organisms (giardia and cryptosporidium oocysts) have been found in the public water supply.

The emergency notice comes after a boil water advisory was issued last week because of problems at the water treatment plant.

A faulty valve caused waste water to enter the water reservoir.

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