Drinking Water Quality and Supply

From source to sink

Where Courtenay water comes from

A plain-language tour of the lakes, rivers, or wells that feed Courtenay, the plants that clean the water, and how it reaches kitchen taps. Lab grades for hardness, lead, and pH live on the water quality page.

On the map

Where Courtenay water lives

Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.

Map showing drinking-water locations for Courtenay

Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.

Deep dive for households

Courtenay drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Comox Lake. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Water is cleaned at Comox Valley Water Treatment Plant (4701 Lake Trail Road) before it enters city pipes. CVRD plant (2021): coagulation, filtration, UV, sodium hypochlorite. Courtenay operates Class 3 distribution only.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. CVRD supplies bulk treated water to Courtenay, Comox, K'ómoks First Nation, and the Comox Valley Water Local Service Area.

One detail that makes Courtenay water feel local: The $126M Comox Lake plant ended turbidity-related boil-water notices that previously hit the valley when lake turbidity spiked. Lab grades for hardness, lead, and pH sit on the city water quality page; this overview is about the route the water travels.

Where it starts

Surface water

Rivers, lakes, or reservoirs, not underground wells as the main draw.

Research confidence: high

Named source waters

  • Comox Lake

Treatment plants

These are the buildings that filter and disinfect water before it enters city pipes.

  • Comox Valley Water Treatment Plant (4701 Lake Trail Road)

    CVRD plant (2021): coagulation, filtration, UV, sodium hypochlorite. Courtenay operates Class 3 distribution only.

How it reaches your street

CVRD supplies bulk treated water to Courtenay, Comox, K'ómoks First Nation, and the Comox Valley Water Local Service Area.

Courtenay water quality grades · All city rankings

Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.