This water comes from the Grand River and ground water wells.
A threat to the water supply is chemicals getting in to the Grand River because that's where most of our water comes from.
About 20% to 25% of Waterloo drinking water is from the Grand River.
The water is treated at a treating facility in Mannheim.
They Start with filtration and once the debris is gone they Use Clorinization and UV light to eradicate bacteria.