Queensborough Water Hardness & Quality Report (2026)

Queensborough's drinking water is managed by the City of New Westminster, purchasing bulk supply from Metro Vancouver (GVWD) — sourced from the Coquitlam Lake watershed in the Coast Mountains. Water is treated at Metro Vancouver facilities using ozonation, biofiltration, UV disinfection, and chloramination, fully meeting the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness in the Queensborough distribution sub-zone is 27.5 mg/L (1.6 gpg) — classified as soft by Health Canada, consistent with the Metro Vancouver inner New Westminster soft supply.

Queensborough (the industrial and residential island of New Westminster between the north and south arms of the Fraser River — a large industrial island south of the main New Westminster city core, accessible via the Queensborough Bridge from New Westminster and the Alex Fraser Bridge corridor, home to the Queensborough Landing outlet shopping centre, extensive light industrial and distribution warehouse operations on the Fraser River island, and the Queensborough Landing waterfront community of townhouses developed from the former industrial waterfront, one of the Fraser Valley's most important logistics and distribution zones at the crossroads of the North Arm and the South Arm of the Fraser River) shows 27.5 mg/L — at the very soft end of the Metro Vancouver distribution, consistent with the Coquitlam Lake reservoir supply at the inner New Westminster distribution zone.

With 27.5 mg/L, Queensborough homes are essentially scale-free — occasional kettle cleaning every three months is adequate. Hot water tanks have an excellent operational lifespan. The City of New Westminster provides water quality information at newwestcity.ca. Health Canada lead precautionary guidance applies to pre-1975 properties in the established Queensborough neighbourhood and the historic New Westminster industrial buildings.