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Niagara's Tap Water is Ranked #1 in Ontario

For years, locals and visitors alike have poured a glass of tap water in the Niagara Region without realizing they are sipping an award-winning beverage. While most people take municipal utilities for granted, the unique infrastructure behind our local water supply recently brought home a massive point of pride for our community.

Niagara's local tap water supply consistently ranks among the highest quality in the province.
Illustration by SCG NIAGARA

The Tastiest Tap Water in Ontario

To the delight and surprise of many residents, the Niagara Region officially claimed the title for Ontario's Tastiest Tap Water. The prestigious award was handed out at the Ontario Water Works Association (OWWA) conference, where the Niagara Falls Water Treatment Plant won a highly competitive blind taste test voted on by over 1,000 industry professionals. Proving it wasn't a fluke, the region's water team defended their crown the following year when the Rosehill Water Treatment Plant in Fort Erie brought home gold for a back-to-back victory.

🚰 Local Fact: The Perfect 100% Score

The taste isn't the only thing worth celebrating. Following strict, unannounced safety inspections by the provincial Ministry of the Environment, Conservation and Parks, Niagara’s water treatment infrastructure regularly secures a perfect 100% inspection rating across all facilities for purity and regulatory compliance.

The Scale of Niagara's Water Operation:

  • 6 Active Plants: The Region operates six advanced water treatment facilities—including major hubs like DeCew Falls in St. Catharines and Rosehill in Fort Erie—to guarantee supply across the peninsula.
  • 160 Million Litres: Approximately 160,000,000 litres of clean drinking water are treated and pumped through the system every single day.
  • 312 Kilometres of Mains: A vast network of high-capacity trunk water mains transports treated water between treatment plants, reservoirs, and local municipal grids.
  • 21 Storage Facilities: Remote storage tanks and water towers maintain continuous pressure across our cities.
  • 11 Municipalities: The regional system successfully serves eleven distinct local municipalities, excluding only Wainfleet which relies on private groundwater wells.

Video: An inside look at how clean drinking water is treated and distributed.

💡 Behind the Taps: How it Works

The secret to our superior tap water comes down to high-quality raw sources and a precise, multi-barrier treatment process. Drawing raw water directly from Lake Erie, the Upper Niagara River, and the Welland Canal supply network, local facilities utilize multi-stage filtration, membrane systems, and meticulous testing schedules to eliminate sediment and impurities before water ever reaches municipal mains.

Because the local system relies on Great Lakes basin sources, treatment operations account for seasonal temperature shifts and organic variations throughout the year. The back-to-back OWWA taste awards showcase the work of local operators and technicians balancing treatment and mineral levels to keep tap water fresh, clear, and odor-free.

A Note on Conservation

While we enjoy an abundant and award-winning supply, regional infrastructure teams continuously monitor high-demand summer periods to keep the system balanced. Simple conservation measures help maintain optimal water pressure for essential services and emergency firefighting services throughout peak seasons.

🚨 Niagara Note: Checking Your Local Lines

While water leaving regional facilities is pristine, water quality at your faucet can still be influenced by aging private service lines or interior plumbing.

If you live in an older home in historic sections of St. Catharines, Niagara Falls, or Thorold, trace metallic tastes can come from outdated service pipes or vintage indoor plumbing. Running your tap for 30 to 60 seconds flushes standing water from private lines, ensuring you taste the water exactly as it left the plant.


Sources: The St. Catharines Standard | Niagara This Week | Niagara Region Water Quality Reports

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