New Westminster Water Hardness & Quality Report (2026)

New Westminster's drinking water comes from the Greater Vancouver Water District, which sources it from the Capilano Reservoir and Seymour Reservoir. These reservoirs are situated in the North Shore Mountains. The water undergoes treatment at the Seymour-Capilano Filtration Plant before being delivered to the city's residents. This filtration process is crucial for ensuring the water meets safety standards before it reaches taps across New Westminster and the wider Metro Vancouver area. The utility responsible for the final distribution is the City of New Westminster Water Utility.

The water's journey begins in the North Shore Mountains, where the Capilano and Seymour watersheds collect precipitation. This area is geologically complex, underlain by Mesozoic and Cenozoic volcanic and sedimentary rocks belonging to the Cascade Range forearc. A significant feature is the presence of granitic basement rocks. This geological makeup, characterized by granitic intrusions and metamorphic rocks with few carbonate deposits, contributes to the water's moderate mineral content and hardness. Unlike regions with abundant limestone, New Westminster's water isn't excessively hard due to its bedrock.

Homeowners in New Westminster might notice a modest amount of scale forming in kettles or on shower heads over time, a common trait of moderately hard water. While a whole-house water softener isn't usually a necessity, it could benefit households with very high water consumption or those concerned about the longevity of appliances like water heaters and dishwashers. To keep these devices running efficiently, a periodic descaling routine is a good idea. The city also publishes an annual Water Quality Monitoring Report, which provides detailed information on tested parameters for residents interested in the specifics of their supply.