PVC is quite common for water mains, Toronto has some: https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/understan

PVC is quite common for water mains, Toronto has some: https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/understanding-city-construction/water-sewer-mains/ https://www.toronto.ca/services-payments/building-constructi... Trade mag mentions it: https://www.waterworld.com/home/article/14071043/the-perfect-pipe https://www.waterworld.com/home/article/14071043/the-perfect...