Lougheed Water Hardness & Quality Report (2026)

Lougheed's drinking water is supplied through the Metro Vancouver (GVWD) regional network — drawing from the Coquitlam Lake watershed in the North Shore mountains and distributed through the Burnaby–Coquitlam transmission infrastructure. Water is treated and distributed fully meeting the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness in the Lougheed distribution sub-zone is 93.5 mg/L (5.5 gpg) — classified as moderately hard by Health Canada, consistent with the Coquitlam Lake supply zone serving the eastern Metro Vancouver corridor.

Lougheed (the Lougheed Highway corridor on the Burnaby–Coquitlam boundary — a high-density mixed-use area along the Lougheed Highway at the boundary of Burnaby and Coquitlam, home to the Lougheed Town Centre mall and the Millennium Line SkyTrain terminus, an intensifying transit-oriented development zone) receives the Coquitlam Lake supply — the largest of Metro Vancouver's three reservoir systems, draining the Coquitlam Lake watershed in the southern Coast Mountains. The Jurassic and Cretaceous volcanic and granitic terrain of the Coquitlam watershed produces the moderately hard 87–94 mg/L range, harder than the Seymour-Capilano supply (15–55 mg/L) due to the slightly different mineralogy of the Coquitlam catchment. The Lougheed 93.5 mg/L is at the top of this range.

At 93.5 mg/L, Lougheed-area residents experience light to moderate scale deposits — cleaning every two months is adequate. The Metro Vancouver municipalities provide water quality information through their municipal websites and at metrovancouver.org. Health Canada lead precautionary guidance applies to pre-1975 properties in the established Lougheed residential areas adjacent to the commercial and transit corridor.